US20060089703A1 - Expandable stent and delivery system - Google Patents
Expandable stent and delivery system Download PDFInfo
- Publication number
- US20060089703A1 US20060089703A1 US11/299,991 US29999105A US2006089703A1 US 20060089703 A1 US20060089703 A1 US 20060089703A1 US 29999105 A US29999105 A US 29999105A US 2006089703 A1 US2006089703 A1 US 2006089703A1
- Authority
- US
- United States
- Prior art keywords
- stent
- expandable stent
- core member
- proximal
- delivery system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 210000004204 blood vessel Anatomy 0.000 abstract description 45
- 206010002329 Aneurysm Diseases 0.000 abstract description 28
- 230000010339 dilation Effects 0.000 abstract description 6
- 230000002708 enhancing effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 16
- 239000000463 material Substances 0.000 description 6
- 239000002861 polymer material Substances 0.000 description 6
- 230000003014 reinforcing effect Effects 0.000 description 5
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 230000017531 blood circulation Effects 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000003073 embolic effect Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 206010051113 Arterial restenosis Diseases 0.000 description 2
- 208000031481 Pathologic Constriction Diseases 0.000 description 2
- 238000002399 angioplasty Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical compound [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 description 2
- 229910001000 nickel titanium Inorganic materials 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 208000037803 restenosis Diseases 0.000 description 2
- 208000037804 stenosis Diseases 0.000 description 2
- 230000036262 stenosis Effects 0.000 description 2
- 210000005166 vasculature Anatomy 0.000 description 2
- 206010060965 Arterial stenosis Diseases 0.000 description 1
- 206010061660 Artery dissection Diseases 0.000 description 1
- RYECOJGRJDOGPP-UHFFFAOYSA-N Ethylurea Chemical compound CCNC(N)=O RYECOJGRJDOGPP-UHFFFAOYSA-N 0.000 description 1
- HTTJABKRGRZYRN-UHFFFAOYSA-N Heparin Chemical compound OC1C(NC(=O)C)C(O)OC(COS(O)(=O)=O)C1OC1C(OS(O)(=O)=O)C(O)C(OC2C(C(OS(O)(=O)=O)C(OC3C(C(O)C(O)C(O3)C(O)=O)OS(O)(=O)=O)C(CO)O2)NS(O)(=O)=O)C(C(O)=O)O1 HTTJABKRGRZYRN-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 208000007474 aortic aneurysm Diseases 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 229960002897 heparin Drugs 0.000 description 1
- 229920000669 heparin Polymers 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- ZAHRKKWIAAJSAO-UHFFFAOYSA-N rapamycin Natural products COCC(O)C(=C/C(C)C(=O)CC(OC(=O)C1CCCCN1C(=O)C(=O)C2(O)OC(CC(OC)C(=CC=CC=CC(C)CC(C)C(=O)C)C)CCC2C)C(C)CC3CCC(O)C(C3)OC)C ZAHRKKWIAAJSAO-UHFFFAOYSA-N 0.000 description 1
- 229960002930 sirolimus Drugs 0.000 description 1
- QFJCIRLUMZQUOT-HPLJOQBZSA-N sirolimus Chemical compound C1C[C@@H](O)[C@H](OC)C[C@@H]1C[C@@H](C)[C@H]1OC(=O)[C@@H]2CCCCN2C(=O)C(=O)[C@](O)(O2)[C@H](C)CC[C@H]2C[C@H](OC)/C(C)=C/C=C/C=C/[C@@H](C)C[C@@H](C)C(=O)[C@H](OC)[C@H](O)/C(C)=C/[C@@H](C)C(=O)C1 QFJCIRLUMZQUOT-HPLJOQBZSA-N 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 208000019553 vascular disease Diseases 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
- A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
- A61B17/12109—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel
- A61B17/12113—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel within an aneurysm
- A61B17/12118—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel within an aneurysm for positioning in conjunction with a stent
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
- A61B17/1214—Coils or wires
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
- A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
- A61F2/915—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/962—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve
- A61F2/966—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B2017/1205—Introduction devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2002/823—Stents, different from stent-grafts, adapted to cover an aneurysm
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/848—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents having means for fixation to the vessel wall, e.g. barbs
- A61F2002/8486—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents having means for fixation to the vessel wall, e.g. barbs provided on at least one of the ends
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
- A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
- A61F2/915—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
- A61F2002/91533—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other characterised by the phase between adjacent bands
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
- A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
- A61F2/915—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
- A61F2002/91533—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other characterised by the phase between adjacent bands
- A61F2002/91541—Adjacent bands are arranged out of phase
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
- A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
- A61F2/915—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
- A61F2002/9155—Adjacent bands being connected to each other
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
- A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
- A61F2/915—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
- A61F2002/9155—Adjacent bands being connected to each other
- A61F2002/91558—Adjacent bands being connected to each other connected peak to peak
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/962—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve
- A61F2/966—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
- A61F2002/9665—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod with additional retaining means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0058—Additional features; Implant or prostheses properties not otherwise provided for
- A61F2250/0096—Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers
- A61F2250/0098—Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers radio-opaque, e.g. radio-opaque markers
Definitions
- This invention relates to intravascular expandable devices and delivery systems for implantation within a vessel of the body, and more particularly to an expandable stent and delivery system which may be used in the treatment of blood vessel disorders. More specifically, the expandable stent and delivery system may be used in the treatment of blood vessel blockage and aneurysms which occur in the brain.
- stents various types of these devices are widely used for reinforcing diseased blood vessels, for opening occluded blood vessels, and for defining an internal lumen to relieve pressure in an aneurysm. Stents allow blood to flow through the vessels at an improved rate while providing the desired lumen opening or structural integrity lost by the damaged vessels.
- Some stents are expanded to their proper size by inflating a balloon catheter, referred to as “balloon expandable” stents, while others are designed to elastically resist compression in a “self-expanding” manner.
- Balloon expandable stents and self-expanding stents are generally delivered in a cylindrical form, compressed to a smaller diameter and are placed within a vessel using a catheter-based delivery system. When positioned at a desired site within a vessel, these devices are expanded by a balloon, or allowed to “self-expand,” to the desired diameter.
- U.S. Pat. No. 4,768,507 entitled, “Intravascular Stent and Percutaneous Insertion Catheter System for the Dilation of an Arterial Stenosis and the Prevention of Arterial Restenosis” discloses a system used for placing a coil spring stent into a vessel for the purposes of enhancing luminal dilation, preventing arterial restenosis and preventing vessel blockage resulting from intimal dissection following balloon and other methods of angioplasty.
- the coil spring stent is placed into spiral grooves on an insertion catheter.
- a back groove of the insertion catheter contains the most proximal coil of the coil spring stent which is prevented from springing radially outward by a flange.
- the coil spring stent is deployed when an outer cylinder is moved proximally allowing the stent to expand.
- U.S. Pat. No. 6,126,685 entitled, “Apparatus and Methods for Placement and Repositioning of Intraluminal Prostheses” discloses a delivery catheter for a radially compressible tubular prosthesis including an elongated shaft slideably received within an elongated sheath. The prosthesis is carried over the distal end of the shaft where it is contained in a radially compressed configuration by the sheath. Penetrating stay members on the exterior of the shaft engage the proximal section of the prosthesis allowing the prosthesis to be recaptured prior to full release of the prosthesis.
- U.S. Pat. No. 6,361,558 entitled, “Stent Aneurysm Treatment System and Method” and assigned to the same assignee as the present application discloses other stent devices.
- This patent discloses vasculature stents of various configurations which may be used as aneurysm covers for occluding, or partially occluding, aneurysms located at various positions along the blood vessels.
- an expandable stent and delivery system in accordance with one aspect of the present invention, there is provided an expandable stent and delivery system.
- the delivery system includes an elongated core member having a proximal cylindrical member disposed about the core member.
- An intermediate cylindrical member is disposed about the core member generally positioned distally from the proximal cylindrical member and spaced apart from the proximal cylindrical member to form a first gap.
- a distal cylindrical member is disposed about the core member generally positioned distally from the intermediate cylindrical member and spaced apart from the intermediate cylindrical member to form a second gap.
- the expandable stent includes at least one proximal leg which extends proximally from the proximal end of the stent.
- the stent also includes at least one distal leg which extends distally from the distal end of the stent.
- the stent further includes at least one anchor member attached to the proximal leg and at least one anchor member attached to the distal leg.
- the anchor members have a longitudinal length less than the longitudinal length of the first and second gaps and are inwardly projected in a direction toward the longitudinal axis of the stent.
- the stent is mounted on the intermediate cylindrical member and positioned such that the anchor members interlock within the gaps.
- the delivery system further includes a deployment catheter disposed about the core member such that the deployment catheter constrains the expandable stent about the intermediate cylindrical member causing the anchor members to be maintained in the gaps and thereby causing the stent to be interlocked onto the core member.
- an expandable stent and delivery system in accordance with another aspect of the present invention, there is provided an expandable stent and delivery system.
- the delivery system includes an elongated core member with a proximal cylindrical member disposed about the core member.
- a distal cylindrical member is disposed about the core member generally positioned distally from the proximal cylindrical member and spaced apart from the proximal cylindrical member to form a gap.
- the expandable stent includes an anchor member attached to the stent.
- the anchor member has a longitudinal length less than or approximately equal to the longitudinal length of the gap and is inwardly projected in a direction toward the longitudinal axis of the stent.
- the stent is mounted on at least one cylindrical member and positioned such that the anchor member interlocks within the gap.
- the delivery system further includes a deployment catheter disposed about the core member such that the deployment catheter constrains the expandable stent about at least one cylindrical member causing the anchor member to be maintained in the gap and thereby causing the stent to be interlocked onto the core member.
- an expandable stent and delivery system includes an elongated core member with a plurality of cylindrical members disposed about the core member and spaced apart to form a plurality of gaps.
- the expandable stent includes a plurality of anchor members attached to the stent.
- the anchor members have a longitudinal length less than the longitudinal length of the gaps and are inwardly projected in a direction toward the longitudinal axis of the stent.
- the stent is mounted on at least one cylindrical member and positioned such that the anchor members interlock within the gaps.
- the delivery system further includes a deployment catheter disposed about the core member such that the deployment catheter constrains the expandable stent about at least one cylindrical member causing the anchor members to be maintained in the gaps and thereby causing the stent to be interlocked onto the core member.
- the intermediate cylindrical member takes the form of a flexible cylindrical sleeve.
- the flexible cylindrical sleeve includes reinforcement members located at the ends of the cylindrical sleeve such that the reinforcement members resist deformation of the ends of the cylindrical sleeve.
- the elongated core member is tapered such that the proximal section of the core member has a diameter which allows the core member to be pushed through a blood vessel and the distal section of the core member has a diameter less than the diameter of the proximal section of the core member.
- the expandable stent includes two proximal legs extending proximally from the proximal end of the stent and two distal legs extending distally from the distal end of the stent.
- Two anchor members are attached to the proximal legs, and two anchor members are attached to the distal legs.
- the anchor members have longitudinal lengths less than the longitudinal lengths of the gaps and are inwardly projected in a direction toward the longitudinal axis of the stent.
- the proximal cylindrical member and the distal cylindrical member take the form of flexible coils.
- a method for deploying an expandable stent within a blood vessel to enhance luminal dilation of the blood vessel or to treat an aneurysm.
- the method includes the step of providing an expandable stent and delivery system.
- the expandable stent is mounted on at least one cylindrical member along a core member of the delivery system.
- the stent has at least one anchor member which is interlocked within at least one gap along the core member.
- the gaps are formed by spaces between a plurality of cylindrical members disposed on the core member.
- the delivery system includes a deployment catheter disposed about the stent which maintains the stent in a constrained configuration.
- the method further includes the step of inserting the expandable stent and delivery system into a blood vessel and positioning the expandable stent adjacent to a blockage area or aneurysm within the vessel.
- the method also includes moving the deployment catheter proximally allowing the stent to begin expanding within the vessel, then again moving the deployment catheter proximally allowing the stent to fully deploy causing the vessel to increase in luminal dilation or causing the stent to cover the aneurysm.
- the method includes removing the delivery system from the blood vessel.
- a method for resheathing an expandable stent onto a delivery system within a blood vessel.
- the method includes the step of providing an expandable stent and delivery system.
- the expandable stent is mounted on at least one cylindrical member along a core member of the delivery system.
- the stent has at least one anchor member interlocked within at least one gap along the core member.
- the gap is formed by spaces between a plurality of cylindrical members disposed on the core member.
- the delivery system includes a deployment catheter disposed about the stent which maintains the stent in a constrained configuration.
- the method further includes inserting the expandable stent and delivery system into the vessel.
- the method also includes moving the deployment catheter proximally allowing the stent to begin expanding within the vessel.
- the method includes moving the deployment catheter distally which forces the stent back onto the cylindrical member of the delivery system.
- the method includes removing the stent and delivery system from the blood vessel or repositioning the stent and delivery system within the blood vessel.
- FIG. 1 is an enlarged partial sectional view of an expandable stent and delivery system in accordance with the present invention
- FIG. 2 is an enlarged partial sectional view of the delivery system with an intermediate cylindrical member which takes the form of a helically wound flexible coil;
- FIG. 3 is an enlarged partial sectional view of the delivery system with an intermediate cylindrical member which takes the form of a flexible cylindrical sleeve;
- FIG. 4 is an enlarged partial sectional view of the expandable stent and delivery system disposed within a blood vessel and aligned adjacent to vessel blockage;
- FIG. 5 is an enlarged partial sectional view of a deployment catheter moved proximally with the proximal section of the expandable stent compressed within the deployment catheter and the distal section of the expandable stent expanded within the vessel;
- FIG. 6 is an enlarged sectional view of the deployment catheter moved proximally with the expandable stent expanded within the vessel;
- FIG. 7 is an enlarged sectional view of the stent expanded within the vessel and the delivery system removed from the vessel;
- FIG. 8 is an enlarged partial sectional view of the expandable stent and delivery system disposed within a blood vessel and aligned adjacent to an aneurysm;
- FIG. 9 is an enlarged partial sectional view of the a deployment catheter moved proximally with the proximal section of the expandable stent constrained within the deployment catheter and the distal section of the expandable stent expanded within the vessel;
- FIG. 10 is an enlarged sectional view of the deployment catheter moved proximally with the expandable stent expanded within the vessel and covering the mouth of the aneurysm;
- FIG. 11 is an enlarged sectional view of the stent expanded within the vessel and covering the aneurysm
- FIG. 12 is an enlarged sectional view of the stent expanded within the vessel and a microcatheter inserted through the wall of the stent and into the aneurysm;
- FIG. 13 is an enlarged sectional view of the stent expanded within the vessel and covering the aneurysm with an embolic coil deployed within the aneurysm.
- FIG. 1 illustrates an expandable stent 10 and delivery system 12 .
- the delivery system 12 includes a deployment catheter 14 which is an elongated tube with a lumen 16 .
- the lumen 16 of the deployment catheter 14 has a diameter in the range of 0.010 inches to 0.25 inches with a preferred diameter of approximately 0.021 inches.
- the proximal section 18 of the deployment catheter 14 is formed of a nylon material having a durometer in a range of about 60 D to 75 D.
- the proximal section 18 is sufficiently flexible to traverse a blood vessel, but is sufficiently rigid so that it can be pushed distally through a blood vessel.
- the distal section 22 of the deployment catheter 14 is preferably formed of a pellethane material having a durometer of between 25 D and 55 D with a durometer of 40 D being the preferred durometer.
- the delivery system 12 includes a winged hub 24 coupled to the proximal section 18 of the deployment catheter 14 .
- the winged hub 24 may be made from plastic and aids in the insertion of the deployment catheter 14 into a blood vessel.
- the delivery system 12 also includes an elongated core member 26 which is a wire preferably made of Nitinol but may also be made from other metal alloys or a polymer material.
- the core member 26 is slideably disposed within the lumen 16 of the deployment catheter 14 .
- the core member 26 may have a long taper or may have multiple tapers to give the proximal section 28 of the core member 26 a greater diameter than the distal section 30 of the core member 26 .
- the diameter of the proximal section 28 of the core member 26 is approximately 0.016 inches while the diameter of the distal section 30 is about 0.002 inches.
- the greater diameter of the proximal section 28 gives the core member 26 sufficient stiffness to be pushed through the deployment catheter 14 , and the smaller diameter of the distal section 30 provides flexibility for the core member 26 to traverse narrow blood vessels.
- the delivery system 12 further includes a proximal cylindrical member 32 disposed about the distal section 30 of the core member 26 .
- the proximal cylindrical member 32 is a helically wound flexible coil with an outside diameter of about 0.016 inches.
- the coil may be made of a polymer material but the preferred material is metal.
- An intermediate cylindrical member 34 (located within the stent and not seen in this figure) is also disposed about the core member 26 distally from the proximal cylindrical member 32 and spaced apart from the proximal cylindrical member 32 .
- the intermediate cylindrical member 34 may be a cylindrical sleeve or a coil with an outside diameter of approximately 0.012 inches.
- the space between the proximal and intermediate cylindrical members 32 and 34 along the core member 26 forms a first gap 36 .
- the length of the first gap 36 may range from 0.019 inches to 0.19 inches with a preferred length of 0.040 inches.
- a distal cylindrical member 38 is also disposed about the core member 26 distally from the intermediate cylindrical member 34 and spaced apart from the intermediate cylindrical member 34 .
- the distal cylindrical member 38 is a helically wound flexible coil with an outside diameter of about 0.016 inches.
- the coil may be made of a polymer material but the preferred material is metal.
- the space between the intermediate and distal cylindrical members 34 and 38 along the core member 26 forms a second gap 40 .
- the length of the second gap 40 may range from 0.019 inches to 0.19 inches with a preferred length of 0.040 inches.
- the distal cylindrical member 38 may also be shapeable so that the core member 26 may be used as a guidewire.
- the distal cylindrical member 38 may be slightly angled to permit the core member 26 to navigate through the vasculature of the body.
- An expandable stent 10 is mounted on the intermediate cylindrical member 34 .
- the expandable stent 10 may take on many different patterns or configurations. Examples of such stents are disclosed in U.S. Patent Application, “Intravascular Stent Device” filed Jun. 5, 2002. The disclosures in these applications are incorporated herein by reference.
- the expandable stent 10 is preferably laser cut from a tubular piece of Nitinol and thereafter treated so as to exhibit superelastic properties at body temperature.
- the expandable stent 10 may include proximal and distal legs 44 and 46 that are attached to the proximal and distal ends 48 and 50 of the stent 10 and extend along the longitudinal axis of the stent 10 .
- the expandable stent 10 also includes anchor members 52 which are either attached to the ends 48 and 50 of the stent 10 or to the proximal and distal legs 44 and 46 of the stent 10 .
- anchor members 52 may be positioned at other locations along the stent between ends 48 and 50 .
- the anchor members 52 may be projections made from polymer or metallic material which extend generally parallel to the longitudinal axis the stent 10 and extend downward toward the longitudinal axis of the stent 10 .
- the anchor members 52 are helically wound flexible coils and made of a radiopaque material for use during fluoroscopic visualization.
- the anchor members 52 attached to the proximal end 48 or proximal legs 44 of the stent 10 align with and are disposed within the first gap 36 .
- the anchor members 52 attached to the distal legs 46 of the stent 10 align with and are disposed within the second gap 40 .
- the expandable stent 10 is locked in place and can be pushed and pulled through the deployment catheter 14 without damaging or deforming the stent 10 .
- the expandable stent 10 of the present invention may alternatively be coated with an agent, such as heparin or rapamycin, to prevent stenosis or restenosis of the vessel.
- an agent such as heparin or rapamycin
- examples of such coatings are disclosed in U.S. Pat. Nos. 5,288,711; 5,516,781; 5,563,146 and 5,646,160. The disclosures in these patents are incorporated herein by reference.
- FIG. 2 illustrates the delivery system 12 without the expandable stent.
- the delivery system 12 includes an elongated core member 26 disposed within a lumen 16 of the deployment catheter 14 .
- Proximal, intermediate and distal cylindrical members 32 , 34 and 38 are disposed about the core member 26 and spaced apart from each other such that first and second gaps 36 and 40 are formed.
- the intermediate cylindrical member 34 is a helically wound flexible coil.
- the flexible coil is made of a metallic material and has a length approximately equal to the length of the expandable stent 10 .
- FIG. 3 like FIG. 2 , illustrates the delivery system 12 without the expandable stent.
- the intermediate cylindrical member 34 is a flexible cylindrical sleeve.
- the cylindrical sleeve is made of a polymer material and has a smooth outer surface.
- the length of the cylindrical sleeve is approximately equal to the length of the expandable stent.
- Reinforcing members 42 may be disposed on the ends of the proximal, intermediate and distal cylindrical members 32 , 34 and 38 .
- the reinforcing members 42 may take the form of rings or disks and may be made of a polymer or metallic material, but preferably the reinforcing members 42 are made of the same material as the cylindrical members 32 , 34 and 38 .
- the reinforcing members 42 provide support to the ends of cylindrical members 32 , 34 and 38 so that the ends resist deformation.
- FIG. 4 illustrates the expandable stent 10 and delivery system 12 positioned within a blood vessel 20 .
- the expandable stent 10 is mounted on the intermediate cylindrical member 34 (located within the stent and not seen in this figure).
- the anchor members 52 on the proximal end 48 of the stent 10 are disposed in the first gap 36
- the anchor members 52 on the distal end 50 of the stent 10 are disposed in the second gap 40 .
- the stent 10 is locked into place on the core member 26 .
- the expandable stent 10 is generally aligned with a blockage area 54 of the blood vessel 20 .
- FIG. 5 illustrates the expandable stent 10 partially deployed within the blood vessel 20 .
- the deployment catheter 14 is moved proximally causing the anchor members 52 on the distal end 50 of the stent 10 to exit the second gap 40 thereby allowing the stent 10 to partially deploy.
- FIG. 6 illustrates the expandable stent 10 fully deployed within the blood vessel 20 and the delivery system 12 still within the vessel 20 .
- the deployment catheter 14 is moved proximally causing the anchor members 52 on the proximal end 48 of the stent 10 to exit the first gap 36 thereby allowing the stent 10 to become fully deployed.
- FIG. 7 illustrates the expandable stent 10 deployed within the blood vessel 20 with the delivery system 12 removed from the blood vessel 20 .
- the expanding force of the stent 10 pushes the blockage area 54 radially outward thereby opening the blood vessel 20 for greater blood flow.
- FIG. 8 illustrates the expandable stent 10 and delivery system 12 positioned within a blood vessel 20 and aligned with an aneurysm 56 .
- the expandable stent 10 is mounted on the intermediate cylindrical member 34 (located within the stent and not seen in this figure).
- the anchor members 52 on the proximal end 48 of the stent 10 are disposed in the first gap 36
- the anchor members 52 on the distal end 50 of the stent 10 are disposed in the second gap 40 . In this position, the stent 10 is locked into place on the core member 26 .
- the expandable stent 10 is generally aligned with an aneurysm 56 .
- FIG. 9 illustrates the expandable stent 10 partially deployed within the blood vessel 20 .
- the deployment catheter 14 is moved proximally causing the anchor members 52 on the distal end 50 of the stent 10 to exit the second gap 40 thereby allowing the stent 10 to partially deploy and to begin covering the aneurysm 56 .
- FIG. 10 illustrates the expandable stent 10 fully deployed within the blood vessel 20 and the delivery system 12 still within the vessel 20 .
- the deployment catheter 14 is moved proximally causing the anchor members 52 on the proximal end 48 of the stent 10 to exit the first gap 36 thereby allowing the stent 10 to become fully deployed and cover the aneurysm 56 .
- FIG. 11 illustrates the expandable stent 10 deployed within the blood vessel 20 with the delivery system 12 removed from the blood vessel 20 .
- the expanded stent 10 covers the mouth of the aneurysm 56 .
- FIG. 12 illustrates the expandable stent 10 deployed with the blood vessel 20 with a microcatheter 58 inserted into the blood vessel 20 , through the wall of the stent 10 , and into the aneurysm 56 . In this position, embolic agents and medical devices may be delivered into the aneurysm 56 .
- FIG. 13 illustrates the expandable stent 10 deployed with the blood vessel 20 and covering the aneurysm 56 .
- An embolic coil 60 is deployed within the aneurysm 56 and is confined within the aneurysm 56 by the expandable stent 10 .
- the present invention is useful for positioning an expandable stent within a blood vessel to enhance luminal dilation of the vessel or to treat an aneurysm.
- To deploy the expandable stent first the stent is mounted about the intermediate cylindrical member along the core member.
- the anchor members attached to the ends of the stent are aligned with the first and second gaps which are formed by the proximal, intermediate, and distal cylindrical members.
- the expandable stent is interlocked onto the core member while the deployment catheter is disposed about the stent holding the stent in its constrained configuration.
- the delivery system is then inserted into the blood vessel until the stent is aligned with the blockage area or aneurysm which is to be treated.
- the deployment catheter is moved proximally which allows the distal portion of the stent to begin expanding and permits the anchor members attached to the distal legs of the stent to become released from the second gap. During expansion, the distal portion of the stent comes in contact with the wall of the blood vessel.
- the deployment catheter is again moved proximally until the proximal portion of the stent expands and allows the anchor members attached to the proximal legs of the stent to become released from the first gap.
- the stent is now fully deployed and the delivery system may be withdrawn from the blood vessel.
- the present invention is also useful in resheathing the expandable stent during the deployment process.
- the stent is positioned on the core member as described above.
- the deployment catheter is moved proximally to allow the distal portion of the stent to expand. If the deployment catheter is not moved proximally beyond the anchor members attached to the proximal legs of the stent, then the stent remains interlocked on the core wire. In this configuration, the stent can be resheathed and deployed at a different location within the blood vessel.
- the deployment catheter is moved distally forcing the stent back onto the intermediate cylindrical member and positioning the anchor members attached to the distal legs of the stent to become interlocked within the second gap.
- the expandable stent and delivery system may be withdrawn or repositioned within the blood vessel.
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Reproductive Health (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Physics & Mathematics (AREA)
- Neurosurgery (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
An expandable stent and delivery system is provided for enhancing luminal dilation of a blood vessel and treating aneurysms. The delivery system includes proximal, intermediate and distal cylindrical members disposed on and spaced apart along an elongated core member such that first and second gaps are formed. The expandable stent includes anchor members which align with the gaps. The expandable stent is mounted on the intermediate cylindrical member, and the anchor members are disposed within the gaps thereby locking the stent onto the core member.
Description
- This patent application is a divisional patent application of U.S. patent application Ser. No. 10/365,282, filed on Feb. 12, 2003, entitled, “Expandable Stent And Delivery System,” which is a nonprovisional patent application of U.S. provisional patent application Ser. No. 60/412,867, filed on Sep. 23, 2002, entitled, “Self-Expanding Stent And Delivery System.”
- 1. Field of the Invention
- This invention relates to intravascular expandable devices and delivery systems for implantation within a vessel of the body, and more particularly to an expandable stent and delivery system which may be used in the treatment of blood vessel disorders. More specifically, the expandable stent and delivery system may be used in the treatment of blood vessel blockage and aneurysms which occur in the brain.
- 2. Description of the Prior Art
- On a worldwide basis, nearly one million balloon angioplasties were performed in 1997 to treat vascular disease, including blood vessels clogged or narrowed by a lesion or stenosis. The objective of this procedure is to increase the inner diameter or cross-sectional area of the vessel passage, or lumen, through which blood flows.
- In an effort to prevent restenosis without requiring surgery, short flexible cylinders or scaffolds, made of metal or polymers, are often placed into a vessel to maintain or improve blood flow. Referred to as stents, various types of these devices are widely used for reinforcing diseased blood vessels, for opening occluded blood vessels, and for defining an internal lumen to relieve pressure in an aneurysm. Stents allow blood to flow through the vessels at an improved rate while providing the desired lumen opening or structural integrity lost by the damaged vessels. Some stents are expanded to their proper size by inflating a balloon catheter, referred to as “balloon expandable” stents, while others are designed to elastically resist compression in a “self-expanding” manner.
- Balloon expandable stents and self-expanding stents are generally delivered in a cylindrical form, compressed to a smaller diameter and are placed within a vessel using a catheter-based delivery system. When positioned at a desired site within a vessel, these devices are expanded by a balloon, or allowed to “self-expand,” to the desired diameter.
- U.S. Pat. No. 4,768,507 entitled, “Intravascular Stent and Percutaneous Insertion Catheter System for the Dilation of an Arterial Stenosis and the Prevention of Arterial Restenosis” discloses a system used for placing a coil spring stent into a vessel for the purposes of enhancing luminal dilation, preventing arterial restenosis and preventing vessel blockage resulting from intimal dissection following balloon and other methods of angioplasty. The coil spring stent is placed into spiral grooves on an insertion catheter. A back groove of the insertion catheter contains the most proximal coil of the coil spring stent which is prevented from springing radially outward by a flange. The coil spring stent is deployed when an outer cylinder is moved proximally allowing the stent to expand.
- Also, U.S. Pat. No. 6,126,685 entitled, “Apparatus and Methods for Placement and Repositioning of Intraluminal Prostheses” discloses a delivery catheter for a radially compressible tubular prosthesis including an elongated shaft slideably received within an elongated sheath. The prosthesis is carried over the distal end of the shaft where it is contained in a radially compressed configuration by the sheath. Penetrating stay members on the exterior of the shaft engage the proximal section of the prosthesis allowing the prosthesis to be recaptured prior to full release of the prosthesis.
- Another stent and delivery system is disclosed in U.S. Pat. No. 6,214,036 entitled, “Stent Which is Easily Recaptured and Repositioned Within the Body.” This patent discloses a self-expanding stent which may be used in the treatment of aortic aneurysms. This device includes longitudinal legs having a flange which attaches to a delivery apparatus. The stent may be easily recaptured after placement and repositioned to a new position within the vessel. This patent, assigned to a related company, is subsequently referred to and the disclosure therein is incorporated and made a part of the subject patent application.
- U.S. Pat. No. 6,361,558 entitled, “Stent Aneurysm Treatment System and Method” and assigned to the same assignee as the present application discloses other stent devices. This patent discloses vasculature stents of various configurations which may be used as aneurysm covers for occluding, or partially occluding, aneurysms located at various positions along the blood vessels.
- In accordance with one aspect of the present invention, there is provided an expandable stent and delivery system. The delivery system includes an elongated core member having a proximal cylindrical member disposed about the core member. An intermediate cylindrical member is disposed about the core member generally positioned distally from the proximal cylindrical member and spaced apart from the proximal cylindrical member to form a first gap. A distal cylindrical member is disposed about the core member generally positioned distally from the intermediate cylindrical member and spaced apart from the intermediate cylindrical member to form a second gap.
- The expandable stent includes at least one proximal leg which extends proximally from the proximal end of the stent. The stent also includes at least one distal leg which extends distally from the distal end of the stent. The stent further includes at least one anchor member attached to the proximal leg and at least one anchor member attached to the distal leg. The anchor members have a longitudinal length less than the longitudinal length of the first and second gaps and are inwardly projected in a direction toward the longitudinal axis of the stent. The stent is mounted on the intermediate cylindrical member and positioned such that the anchor members interlock within the gaps.
- The delivery system further includes a deployment catheter disposed about the core member such that the deployment catheter constrains the expandable stent about the intermediate cylindrical member causing the anchor members to be maintained in the gaps and thereby causing the stent to be interlocked onto the core member.
- In accordance with another aspect of the present invention, there is provided an expandable stent and delivery system. The delivery system includes an elongated core member with a proximal cylindrical member disposed about the core member. A distal cylindrical member is disposed about the core member generally positioned distally from the proximal cylindrical member and spaced apart from the proximal cylindrical member to form a gap. The expandable stent includes an anchor member attached to the stent. The anchor member has a longitudinal length less than or approximately equal to the longitudinal length of the gap and is inwardly projected in a direction toward the longitudinal axis of the stent. The stent is mounted on at least one cylindrical member and positioned such that the anchor member interlocks within the gap.
- The delivery system further includes a deployment catheter disposed about the core member such that the deployment catheter constrains the expandable stent about at least one cylindrical member causing the anchor member to be maintained in the gap and thereby causing the stent to be interlocked onto the core member.
- In accordance with a further aspect of the present invention, there is provided an expandable stent and delivery system. The delivery system includes an elongated core member with a plurality of cylindrical members disposed about the core member and spaced apart to form a plurality of gaps. The expandable stent includes a plurality of anchor members attached to the stent. The anchor members have a longitudinal length less than the longitudinal length of the gaps and are inwardly projected in a direction toward the longitudinal axis of the stent. The stent is mounted on at least one cylindrical member and positioned such that the anchor members interlock within the gaps.
- The delivery system further includes a deployment catheter disposed about the core member such that the deployment catheter constrains the expandable stent about at least one cylindrical member causing the anchor members to be maintained in the gaps and thereby causing the stent to be interlocked onto the core member.
- In accordance with another aspect of the present invention, the intermediate cylindrical member takes the form of a flexible cylindrical sleeve. The flexible cylindrical sleeve includes reinforcement members located at the ends of the cylindrical sleeve such that the reinforcement members resist deformation of the ends of the cylindrical sleeve.
- In accordance with a further aspect of the present invention, the elongated core member is tapered such that the proximal section of the core member has a diameter which allows the core member to be pushed through a blood vessel and the distal section of the core member has a diameter less than the diameter of the proximal section of the core member.
- In accordance with still another aspect of the present invention, the expandable stent includes two proximal legs extending proximally from the proximal end of the stent and two distal legs extending distally from the distal end of the stent. Two anchor members are attached to the proximal legs, and two anchor members are attached to the distal legs. The anchor members have longitudinal lengths less than the longitudinal lengths of the gaps and are inwardly projected in a direction toward the longitudinal axis of the stent.
- In accordance with another aspect of the present invention, the proximal cylindrical member and the distal cylindrical member take the form of flexible coils.
- In accordance with a further aspect of the present invention, a method is provided for deploying an expandable stent within a blood vessel to enhance luminal dilation of the blood vessel or to treat an aneurysm. The method includes the step of providing an expandable stent and delivery system. The expandable stent is mounted on at least one cylindrical member along a core member of the delivery system. The stent has at least one anchor member which is interlocked within at least one gap along the core member. The gaps are formed by spaces between a plurality of cylindrical members disposed on the core member. The delivery system includes a deployment catheter disposed about the stent which maintains the stent in a constrained configuration.
- The method further includes the step of inserting the expandable stent and delivery system into a blood vessel and positioning the expandable stent adjacent to a blockage area or aneurysm within the vessel. The method also includes moving the deployment catheter proximally allowing the stent to begin expanding within the vessel, then again moving the deployment catheter proximally allowing the stent to fully deploy causing the vessel to increase in luminal dilation or causing the stent to cover the aneurysm. Finally, the method includes removing the delivery system from the blood vessel.
- In accordance with still another aspect of the present invention, a method is provided for resheathing an expandable stent onto a delivery system within a blood vessel. The method includes the step of providing an expandable stent and delivery system. The expandable stent is mounted on at least one cylindrical member along a core member of the delivery system. The stent has at least one anchor member interlocked within at least one gap along the core member. The gap is formed by spaces between a plurality of cylindrical members disposed on the core member. The delivery system includes a deployment catheter disposed about the stent which maintains the stent in a constrained configuration. The method further includes inserting the expandable stent and delivery system into the vessel. The method also includes moving the deployment catheter proximally allowing the stent to begin expanding within the vessel. In addition, the method includes moving the deployment catheter distally which forces the stent back onto the cylindrical member of the delivery system. Finally, the method includes removing the stent and delivery system from the blood vessel or repositioning the stent and delivery system within the blood vessel.
- These and other aspects of the present invention and the advantages thereof will be more clearly understood from the foregoing description in drawings of a preferred embodiment of the present invention.
-
FIG. 1 is an enlarged partial sectional view of an expandable stent and delivery system in accordance with the present invention; -
FIG. 2 is an enlarged partial sectional view of the delivery system with an intermediate cylindrical member which takes the form of a helically wound flexible coil; -
FIG. 3 is an enlarged partial sectional view of the delivery system with an intermediate cylindrical member which takes the form of a flexible cylindrical sleeve; -
FIG. 4 is an enlarged partial sectional view of the expandable stent and delivery system disposed within a blood vessel and aligned adjacent to vessel blockage; -
FIG. 5 is an enlarged partial sectional view of a deployment catheter moved proximally with the proximal section of the expandable stent compressed within the deployment catheter and the distal section of the expandable stent expanded within the vessel; -
FIG. 6 is an enlarged sectional view of the deployment catheter moved proximally with the expandable stent expanded within the vessel; -
FIG. 7 is an enlarged sectional view of the stent expanded within the vessel and the delivery system removed from the vessel; -
FIG. 8 is an enlarged partial sectional view of the expandable stent and delivery system disposed within a blood vessel and aligned adjacent to an aneurysm; -
FIG. 9 is an enlarged partial sectional view of the a deployment catheter moved proximally with the proximal section of the expandable stent constrained within the deployment catheter and the distal section of the expandable stent expanded within the vessel; -
FIG. 10 is an enlarged sectional view of the deployment catheter moved proximally with the expandable stent expanded within the vessel and covering the mouth of the aneurysm; -
FIG. 11 is an enlarged sectional view of the stent expanded within the vessel and covering the aneurysm; -
FIG. 12 is an enlarged sectional view of the stent expanded within the vessel and a microcatheter inserted through the wall of the stent and into the aneurysm; and, -
FIG. 13 is an enlarged sectional view of the stent expanded within the vessel and covering the aneurysm with an embolic coil deployed within the aneurysm. -
FIG. 1 illustrates anexpandable stent 10 anddelivery system 12. Thedelivery system 12 includes adeployment catheter 14 which is an elongated tube with alumen 16. Thelumen 16 of thedeployment catheter 14 has a diameter in the range of 0.010 inches to 0.25 inches with a preferred diameter of approximately 0.021 inches. Preferably, theproximal section 18 of thedeployment catheter 14 is formed of a nylon material having a durometer in a range of about 60D to 75D. Theproximal section 18 is sufficiently flexible to traverse a blood vessel, but is sufficiently rigid so that it can be pushed distally through a blood vessel. Thedistal section 22 of thedeployment catheter 14 is preferably formed of a pellethane material having a durometer of between 25D and 55D with a durometer of 40D being the preferred durometer. - The
delivery system 12 includes awinged hub 24 coupled to theproximal section 18 of thedeployment catheter 14. Thewinged hub 24 may be made from plastic and aids in the insertion of thedeployment catheter 14 into a blood vessel. Thedelivery system 12 also includes anelongated core member 26 which is a wire preferably made of Nitinol but may also be made from other metal alloys or a polymer material. Thecore member 26 is slideably disposed within thelumen 16 of thedeployment catheter 14. Thecore member 26 may have a long taper or may have multiple tapers to give theproximal section 28 of the core member 26 a greater diameter than thedistal section 30 of thecore member 26. Preferably, the diameter of theproximal section 28 of thecore member 26 is approximately 0.016 inches while the diameter of thedistal section 30 is about 0.002 inches. The greater diameter of theproximal section 28 gives thecore member 26 sufficient stiffness to be pushed through thedeployment catheter 14, and the smaller diameter of thedistal section 30 provides flexibility for thecore member 26 to traverse narrow blood vessels. - The
delivery system 12 further includes a proximalcylindrical member 32 disposed about thedistal section 30 of thecore member 26. Preferably, the proximalcylindrical member 32 is a helically wound flexible coil with an outside diameter of about 0.016 inches. The coil may be made of a polymer material but the preferred material is metal. An intermediate cylindrical member 34 (located within the stent and not seen in this figure) is also disposed about thecore member 26 distally from the proximalcylindrical member 32 and spaced apart from the proximalcylindrical member 32. The intermediatecylindrical member 34 may be a cylindrical sleeve or a coil with an outside diameter of approximately 0.012 inches. The space between the proximal and intermediatecylindrical members core member 26 forms afirst gap 36. The length of thefirst gap 36 may range from 0.019 inches to 0.19 inches with a preferred length of 0.040 inches. - A distal
cylindrical member 38 is also disposed about thecore member 26 distally from the intermediatecylindrical member 34 and spaced apart from the intermediatecylindrical member 34. Preferably, the distalcylindrical member 38 is a helically wound flexible coil with an outside diameter of about 0.016 inches. The coil may be made of a polymer material but the preferred material is metal. The space between the intermediate and distalcylindrical members core member 26 forms asecond gap 40. The length of thesecond gap 40 may range from 0.019 inches to 0.19 inches with a preferred length of 0.040 inches. The distalcylindrical member 38 may also be shapeable so that thecore member 26 may be used as a guidewire. For example, the distalcylindrical member 38 may be slightly angled to permit thecore member 26 to navigate through the vasculature of the body. - An
expandable stent 10 is mounted on the intermediatecylindrical member 34. Theexpandable stent 10 may take on many different patterns or configurations. Examples of such stents are disclosed in U.S. Patent Application, “Intravascular Stent Device” filed Jun. 5, 2002. The disclosures in these applications are incorporated herein by reference. Theexpandable stent 10 is preferably laser cut from a tubular piece of Nitinol and thereafter treated so as to exhibit superelastic properties at body temperature. Theexpandable stent 10 may include proximal anddistal legs distal ends stent 10 and extend along the longitudinal axis of thestent 10. Theexpandable stent 10 also includesanchor members 52 which are either attached to theends stent 10 or to the proximal anddistal legs stent 10. In addition,anchor members 52 may be positioned at other locations along the stent between ends 48 and 50. Theanchor members 52 may be projections made from polymer or metallic material which extend generally parallel to the longitudinal axis thestent 10 and extend downward toward the longitudinal axis of thestent 10. - Preferably, the
anchor members 52 are helically wound flexible coils and made of a radiopaque material for use during fluoroscopic visualization. As theexpandable stent 10 is positioned and mounted on the intermediatecylindrical member 34, theanchor members 52 attached to theproximal end 48 orproximal legs 44 of thestent 10 align with and are disposed within thefirst gap 36. Similarly, theanchor members 52 attached to thedistal legs 46 of thestent 10 align with and are disposed within thesecond gap 40. In this configuration, theexpandable stent 10 is locked in place and can be pushed and pulled through thedeployment catheter 14 without damaging or deforming thestent 10. - It should be understood that the
expandable stent 10 of the present invention may alternatively be coated with an agent, such as heparin or rapamycin, to prevent stenosis or restenosis of the vessel. Examples of such coatings are disclosed in U.S. Pat. Nos. 5,288,711; 5,516,781; 5,563,146 and 5,646,160. The disclosures in these patents are incorporated herein by reference. -
FIG. 2 illustrates thedelivery system 12 without the expandable stent. Thedelivery system 12 includes anelongated core member 26 disposed within alumen 16 of thedeployment catheter 14. Proximal, intermediate and distalcylindrical members core member 26 and spaced apart from each other such that first andsecond gaps cylindrical member 34 is a helically wound flexible coil. Preferably, the flexible coil is made of a metallic material and has a length approximately equal to the length of theexpandable stent 10. When the expandable stent (not shown) is mounted on the intermediatecylindrical member 34, the stent is constrained about the coil by thedeployment catheter 14. In this configuration, the stent anddelivery system 12 remain sufficiently flexible to traverse tortuous blood vessels. -
FIG. 3 , likeFIG. 2 , illustrates thedelivery system 12 without the expandable stent. However, in the embodiment shown in this figure, the intermediatecylindrical member 34 is a flexible cylindrical sleeve. Preferably, the cylindrical sleeve is made of a polymer material and has a smooth outer surface. The length of the cylindrical sleeve is approximately equal to the length of the expandable stent. When the expandable stent (not shown) with a drug coating is mounted on the intermediatecylindrical member 34, the stent is constrained about the cylindrical sleeve by thedeployment catheter 12. In this configuration, the drug coating on the expandable stent is protected from damage caused by friction between the stent and a non-smooth intermediatecylindrical member 34 and friction between various components of the stent itself. - Reinforcing
members 42 may be disposed on the ends of the proximal, intermediate and distalcylindrical members members 42 may take the form of rings or disks and may be made of a polymer or metallic material, but preferably the reinforcingmembers 42 are made of the same material as thecylindrical members members 42 provide support to the ends ofcylindrical members -
FIG. 4 illustrates theexpandable stent 10 anddelivery system 12 positioned within ablood vessel 20. Theexpandable stent 10 is mounted on the intermediate cylindrical member 34 (located within the stent and not seen in this figure). Theanchor members 52 on theproximal end 48 of thestent 10 are disposed in thefirst gap 36, while theanchor members 52 on thedistal end 50 of thestent 10 are disposed in thesecond gap 40. In this position, thestent 10 is locked into place on thecore member 26. Theexpandable stent 10 is generally aligned with ablockage area 54 of theblood vessel 20. -
FIG. 5 illustrates theexpandable stent 10 partially deployed within theblood vessel 20. Thedeployment catheter 14 is moved proximally causing theanchor members 52 on thedistal end 50 of thestent 10 to exit thesecond gap 40 thereby allowing thestent 10 to partially deploy. -
FIG. 6 illustrates theexpandable stent 10 fully deployed within theblood vessel 20 and thedelivery system 12 still within thevessel 20. Thedeployment catheter 14 is moved proximally causing theanchor members 52 on theproximal end 48 of thestent 10 to exit thefirst gap 36 thereby allowing thestent 10 to become fully deployed. -
FIG. 7 illustrates theexpandable stent 10 deployed within theblood vessel 20 with thedelivery system 12 removed from theblood vessel 20. The expanding force of thestent 10 pushes theblockage area 54 radially outward thereby opening theblood vessel 20 for greater blood flow. -
FIG. 8 illustrates theexpandable stent 10 anddelivery system 12 positioned within ablood vessel 20 and aligned with ananeurysm 56. Theexpandable stent 10 is mounted on the intermediate cylindrical member 34 (located within the stent and not seen in this figure). Theanchor members 52 on theproximal end 48 of thestent 10 are disposed in thefirst gap 36, while theanchor members 52 on thedistal end 50 of thestent 10 are disposed in thesecond gap 40. In this position, thestent 10 is locked into place on thecore member 26. Theexpandable stent 10 is generally aligned with ananeurysm 56. -
FIG. 9 illustrates theexpandable stent 10 partially deployed within theblood vessel 20. Thedeployment catheter 14 is moved proximally causing theanchor members 52 on thedistal end 50 of thestent 10 to exit thesecond gap 40 thereby allowing thestent 10 to partially deploy and to begin covering theaneurysm 56. -
FIG. 10 illustrates theexpandable stent 10 fully deployed within theblood vessel 20 and thedelivery system 12 still within thevessel 20. Thedeployment catheter 14 is moved proximally causing theanchor members 52 on theproximal end 48 of thestent 10 to exit thefirst gap 36 thereby allowing thestent 10 to become fully deployed and cover theaneurysm 56. -
FIG. 11 illustrates theexpandable stent 10 deployed within theblood vessel 20 with thedelivery system 12 removed from theblood vessel 20. The expandedstent 10 covers the mouth of theaneurysm 56. -
FIG. 12 illustrates theexpandable stent 10 deployed with theblood vessel 20 with amicrocatheter 58 inserted into theblood vessel 20, through the wall of thestent 10, and into theaneurysm 56. In this position, embolic agents and medical devices may be delivered into theaneurysm 56. -
FIG. 13 illustrates theexpandable stent 10 deployed with theblood vessel 20 and covering theaneurysm 56. Anembolic coil 60 is deployed within theaneurysm 56 and is confined within theaneurysm 56 by theexpandable stent 10. - The present invention is useful for positioning an expandable stent within a blood vessel to enhance luminal dilation of the vessel or to treat an aneurysm. To deploy the expandable stent, first the stent is mounted about the intermediate cylindrical member along the core member. The anchor members attached to the ends of the stent are aligned with the first and second gaps which are formed by the proximal, intermediate, and distal cylindrical members. The expandable stent is interlocked onto the core member while the deployment catheter is disposed about the stent holding the stent in its constrained configuration. The delivery system is then inserted into the blood vessel until the stent is aligned with the blockage area or aneurysm which is to be treated. Once positioned, the deployment catheter is moved proximally which allows the distal portion of the stent to begin expanding and permits the anchor members attached to the distal legs of the stent to become released from the second gap. During expansion, the distal portion of the stent comes in contact with the wall of the blood vessel. The deployment catheter is again moved proximally until the proximal portion of the stent expands and allows the anchor members attached to the proximal legs of the stent to become released from the first gap. The stent is now fully deployed and the delivery system may be withdrawn from the blood vessel.
- The present invention is also useful in resheathing the expandable stent during the deployment process. Here, the stent is positioned on the core member as described above. Once the delivery system is positioned within the blood vessel at the blockage area or aneurysm to be treated, the deployment catheter is moved proximally to allow the distal portion of the stent to expand. If the deployment catheter is not moved proximally beyond the anchor members attached to the proximal legs of the stent, then the stent remains interlocked on the core wire. In this configuration, the stent can be resheathed and deployed at a different location within the blood vessel. To do this, the deployment catheter is moved distally forcing the stent back onto the intermediate cylindrical member and positioning the anchor members attached to the distal legs of the stent to become interlocked within the second gap. In this configuration, the expandable stent and delivery system may be withdrawn or repositioned within the blood vessel.
- A novel system has been disclosed in which an expandable stent is positioned within a blood vessel. Although a preferred embodiment of the invention has been described, it is to be understood that various modifications may be made by those skilled in the art without departing from the scope of the claims which follow.
Claims (19)
1. An expandable stent and delivery system comprising:
an elongated core member having proximal and distal sections;
a proximal cylindrical member disposed about the distal section of said core member;
an intermediate cylindrical member disposed about the distal section of said core member and generally positioned on said core member distally from said proximal cylindrical member and spaced apart from said proximal cylindrical member to form a first gap having a longitudinal length;
a distal cylindrical member disposed about the distal section of said core member and generally positioned on said core member distally from said intermediate cylindrical member and spaced apart from said intermediate cylindrical member to form a second gap having a longitudinal length;
an expandable stent having proximal and distal ends and a longitudinal axis, said stent including at least one proximal leg taking the form of an elongated projection and extending proximally from the proximal end of said stent, said stent also including at least one distal leg taking the form of an elongated projection extending distally from the distal end of said stent, said stent further including at least one anchor member attached to said proximal leg and taking the form of an extension having a longitudinal length less than the longitudinal length of said first gap and inwardly projected in a direction toward the longitudinal axis of said stent, said stent also including at least one anchor member attached to said distal leg and taking the form of an extension having a longitudinal length less than the longitudinal length of said second gap and inwardly projected in a direction toward the longitudinal axis of said stent, said stent mounted on said intermediate cylindrical member and positioned such that said anchor members interlock within said gaps; and
a deployment catheter having a lumen extending therethrough and disposed about said core member such that said deployment catheter constrains said expandable stent about said intermediate cylindrical member causing said anchor members to be maintained in said gaps and thereby causing said stent to be interlocked onto said core member.
2. An expandable stent and delivery system as defined in claim 1 , wherein said intermediate cylindrical member takes the form of a flexible cylindrical sleeve having proximal and distal ends.
3. An expandable stent and delivery system as defined in claim 1 , wherein said expandable stent includes two proximal legs taking the form of elongated projections and extending proximally from the proximal end of said stent.
4. An expandable stent and delivery system as defined in claim 3 , wherein said expandable stent includes two anchor members attached to said proximal legs and taking the form of extensions having longitudinal lengths less than the longitudinal length of said first gap and inwardly-projected in a direction toward the longitudinal axis of said stent.
5. An expandable stent and delivery system as defined in claim 1 , wherein said expandable stent includes two distal legs taking the form of elongated projections and extending distally from the distal end of said stent.
6. An expandable stent and delivery system as defined in claim 5 , wherein said expandable stent includes two anchor members attached to said distal legs and taking the form of extensions having longitudinal lengths less than the longitudinal length of said second gap and inwardly projected in a direction toward the longitudinal axis of said stent.
7. An expandable stent and delivery system comprising:
an elongated core member having proximal and distal sections;
a proximal cylindrical member disposed about the distal section of said core member;
a distal cylindrical member disposed about the distal section of said core member and generally positioned on said core member distally from said proximal cylindrical member and spaced apart from said proximal cylindrical member to form a gap having a longitudinal length;
an expandable stent having a longitudinal axis, said stent including an anchor member attached to said stent and taking the form of an extension having a longitudinal length less than the longitudinal length of said gap and inwardly projected in a direction toward the longitudinal axis of said stent, said stent mounted on at least one cylindrical member and positioned such that said anchor member interlocks within said gap; and
a deployment catheter having a lumen extending therethrough and disposed about said core member such that said deployment catheter constrains said expandable stent about at least one cylindrical member causing said anchor member to be maintained in said gap and thereby causing said stent to be interlocked onto said core member.
8. An expandable stent and delivery system as defined in claim 7 , wherein at least one cylindrical member takes the form of a flexible cylindrical sleeve having proximal and distal ends.
9. An expandable stent and delivery system comprising:
an elongated core member having proximal and distal sections;
a proximal cylindrical member disposed about the distal section of said core member;
a distal cylindrical member disposed about the distal section of said core member and generally positioned on said core member distally from said proximal cylindrical member and spaced apart from said proximal cylindrical member to form a gap having a longitudinal length;
an expandable stent having a longitudinal axis, said stent including an anchor member attached to said stent and taking the form of an extension having a longitudinal length approximately equal to the longitudinal length of said gap and inwardly projected in a direction toward the longitudinal axis of said stent, said stent mounted on at least one cylindrical member and positioned such that said anchor member interlocks within said gap; and,
a deployment catheter having a lumen extending therethrough and disposed about said core member such that said deployment catheter constrains said expandable stent about at least one cylindrical member causing said anchor member to be maintained in said gap and thereby causing said stent to be interlocked onto said core member.
10. An expandable stent and delivery system as defined in claim 9 , wherein at least one cylindrical member takes the form of a flexible cylindrical sleeve having proximal and distal ends.
11. An expandable stent and delivery system comprising:
an elongated core member having proximal and distal sections;
a plurality of cylindrical members disposed about the distal section of said core member and spaced apart to form a plurality of gaps each having a longitudinal length;
an expandable stent having a longitudinal axis, said stent including a plurality of anchor members attached to said stent and taking the form of extensions having a longitudinal length less than the longitudinal length of said gaps and inwardly projected in a direction toward the longitudinal axis of said stent, said stent mounted on at least one cylindrical member and positioned such that said anchor members interlock within said gaps; and,
a deployment catheter having a lumen extending therethrough and disposed about said core member such that said deployment catheter constrains said expandable stent about at least one cylindrical member causing said anchor members to be maintained in said gaps and thereby causing said stent to be interlocked onto said core member.
12. An expandable stent and delivery system comprising:
an elongated core member having a distal section;
a proximal cylindrical member disposed about the distal section of said core member;
a distal cylindrical member disposed about the distal section of said core member and generally positioned on said core member distally from said proximal cylindrical member and spaced apart from said proximal cylindrical member to form a gap;
an expandable stent having a longitudinal axis, said stent including an anchor member attached to said stent and taking the form of an inward projection toward the longitudinal axis of said stent and capable of interlocking within said gap, said stent mounted on at least one cylindrical member and positioned such that said anchor member interlocks within said gap; and,
a deployment catheter disposed about said core member such that said deployment catheter constrains said expandable stent about at least one cylindrical member causing said anchor member to be maintained in said gap and thereby causing said stent to be interlocked onto said core member.
13. An expandable stent and stent delivery system as defined in claim 12 , wherein said anchor member takes a cylindrical form.
14. An expandable stent and delivery system comprising:
an elongated core member;
a proximal lock member projecting outwardly from said elongated core member;
a distal lock member projecting outwardly from said elongated core member and generally positioned on said elongated core member distally from said proximal lock member and spaced apart from said proximal lock member to form a gap;
an expandable stent having a longitudinal axis, said expandable stent including an anchor member attached to said expandable stent and taking the form of an inward projection toward the longitudinal axis of said expandable stent, said expandable stent mounted on said elongated core member and positioned such that said anchor member interlocks within said gap; and,
a deployment catheter disposed about said elongated core member such that said deployment catheter constrains said expandable stent about said elongated core member causing said anchor member to be maintained in said gap and thereby causing said expandable stent to be interlocked onto said elongated core member.
15. An expandable stent and delivery system as defined in claim 14 , wherein said proximal lock member and said distal lock member take a cylindrical form.
16. An expandable stent and delivery system as defined in claim 15 , wherein said proximal lock member and said distal lock member are integral with said elongated core member.
17. An expandable stent and delivery system comprising:
an elongated core member;
a lock member projecting outwardly from said elongated core member;
an expandable stent including an inward projection, said expandable stent mounted on said elongated core member such that said inward projection of said expandable stent is positioned distally of said lock member; and,
a deployment catheter having a lumen and said elongated core member slidably disposed within the lumen of said deployment catheter such that said deployment catheter constrains said expandable stent about said elongated core member and said lock member interlocks with said inward projection of said expandable stent to thereby engage said expandable stent with said elongated core member.
18. An expandable stent and delivery system as defined in claim 17 , wherein said lock member takes a cylindrical form.
19. An expandable stent and delivery system as defined in claim 18 , wherein said lock member is integral with said elongated core member.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/299,991 US20060089703A1 (en) | 2002-09-23 | 2005-12-12 | Expandable stent and delivery system |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US41286702P | 2002-09-23 | 2002-09-23 | |
US10/365,282 US7001422B2 (en) | 2002-09-23 | 2003-02-12 | Expandable stent and delivery system |
US11/299,991 US20060089703A1 (en) | 2002-09-23 | 2005-12-12 | Expandable stent and delivery system |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/365,282 Division US7001422B2 (en) | 2002-09-23 | 2003-02-12 | Expandable stent and delivery system |
Publications (1)
Publication Number | Publication Date |
---|---|
US20060089703A1 true US20060089703A1 (en) | 2006-04-27 |
Family
ID=31949831
Family Applications (5)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/365,282 Expired - Lifetime US7001422B2 (en) | 2002-09-23 | 2003-02-12 | Expandable stent and delivery system |
US10/608,659 Expired - Lifetime US6955685B2 (en) | 2002-09-23 | 2003-06-27 | Expandable stent with radiopaque markers and stent delivery system |
US11/208,292 Expired - Lifetime US7309351B2 (en) | 2002-09-23 | 2005-08-19 | Expandable stent with markers and stent delivery system |
US11/299,992 Abandoned US20060095213A1 (en) | 2002-09-23 | 2005-12-12 | Expandable stent and delivery system |
US11/299,991 Abandoned US20060089703A1 (en) | 2002-09-23 | 2005-12-12 | Expandable stent and delivery system |
Family Applications Before (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/365,282 Expired - Lifetime US7001422B2 (en) | 2002-09-23 | 2003-02-12 | Expandable stent and delivery system |
US10/608,659 Expired - Lifetime US6955685B2 (en) | 2002-09-23 | 2003-06-27 | Expandable stent with radiopaque markers and stent delivery system |
US11/208,292 Expired - Lifetime US7309351B2 (en) | 2002-09-23 | 2005-08-19 | Expandable stent with markers and stent delivery system |
US11/299,992 Abandoned US20060095213A1 (en) | 2002-09-23 | 2005-12-12 | Expandable stent and delivery system |
Country Status (3)
Country | Link |
---|---|
US (5) | US7001422B2 (en) |
EP (1) | EP1400219A1 (en) |
JP (1) | JP4498709B2 (en) |
Cited By (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060206200A1 (en) * | 2004-05-25 | 2006-09-14 | Chestnut Medical Technologies, Inc. | Flexible vascular occluding device |
US8066757B2 (en) | 2007-10-17 | 2011-11-29 | Mindframe, Inc. | Blood flow restoration and thrombus management methods |
US8088140B2 (en) | 2008-05-19 | 2012-01-03 | Mindframe, Inc. | Blood flow restorative and embolus removal methods |
US8147534B2 (en) | 2005-05-25 | 2012-04-03 | Tyco Healthcare Group Lp | System and method for delivering and deploying an occluding device within a vessel |
US8267985B2 (en) | 2005-05-25 | 2012-09-18 | Tyco Healthcare Group Lp | System and method for delivering and deploying an occluding device within a vessel |
CN102686189A (en) * | 2009-12-28 | 2012-09-19 | 泰尔茂株式会社 | Stent delivery system |
US8273101B2 (en) | 2005-05-25 | 2012-09-25 | Tyco Healthcare Group Lp | System and method for delivering and deploying an occluding device within a vessel |
US8394119B2 (en) | 2006-02-22 | 2013-03-12 | Covidien Lp | Stents having radiopaque mesh |
US8398701B2 (en) | 2004-05-25 | 2013-03-19 | Covidien Lp | Flexible vascular occluding device |
US8545514B2 (en) | 2008-04-11 | 2013-10-01 | Covidien Lp | Monorail neuro-microcatheter for delivery of medical devices to treat stroke, processes and products thereby |
US8585713B2 (en) | 2007-10-17 | 2013-11-19 | Covidien Lp | Expandable tip assembly for thrombus management |
US8617234B2 (en) | 2004-05-25 | 2013-12-31 | Covidien Lp | Flexible vascular occluding device |
US8623067B2 (en) | 2004-05-25 | 2014-01-07 | Covidien Lp | Methods and apparatus for luminal stenting |
US8679142B2 (en) | 2008-02-22 | 2014-03-25 | Covidien Lp | Methods and apparatus for flow restoration |
US8926680B2 (en) | 2007-11-12 | 2015-01-06 | Covidien Lp | Aneurysm neck bridging processes with revascularization systems methods and products thereby |
US9114001B2 (en) | 2012-10-30 | 2015-08-25 | Covidien Lp | Systems for attaining a predetermined porosity of a vascular device |
US9155647B2 (en) | 2012-07-18 | 2015-10-13 | Covidien Lp | Methods and apparatus for luminal stenting |
US9157174B2 (en) | 2013-02-05 | 2015-10-13 | Covidien Lp | Vascular device for aneurysm treatment and providing blood flow into a perforator vessel |
US9198687B2 (en) | 2007-10-17 | 2015-12-01 | Covidien Lp | Acute stroke revascularization/recanalization systems processes and products thereby |
US9220522B2 (en) | 2007-10-17 | 2015-12-29 | Covidien Lp | Embolus removal systems with baskets |
US9427345B2 (en) | 2013-04-30 | 2016-08-30 | Asahi Intecc Co., Ltd. | Pusher guide wire |
US9452070B2 (en) | 2012-10-31 | 2016-09-27 | Covidien Lp | Methods and systems for increasing a density of a region of a vascular device |
WO2017049195A1 (en) * | 2015-09-18 | 2017-03-23 | Microvention, Inc. | Implant retention, detachment, and delivery system |
US9675482B2 (en) | 2008-05-13 | 2017-06-13 | Covidien Lp | Braid implant delivery systems |
US9943427B2 (en) | 2012-11-06 | 2018-04-17 | Covidien Lp | Shaped occluding devices and methods of using the same |
US10004618B2 (en) | 2004-05-25 | 2018-06-26 | Covidien Lp | Methods and apparatus for luminal stenting |
US10123803B2 (en) | 2007-10-17 | 2018-11-13 | Covidien Lp | Methods of managing neurovascular obstructions |
US10722255B2 (en) | 2008-12-23 | 2020-07-28 | Covidien Lp | Systems and methods for removing obstructive matter from body lumens and treating vascular defects |
US11253379B2 (en) | 2015-10-12 | 2022-02-22 | Reflow Medical, Inc. | Stents having protruding drug-delivery features and associated systems and methods |
US11337714B2 (en) | 2007-10-17 | 2022-05-24 | Covidien Lp | Restoring blood flow and clot removal during acute ischemic stroke |
Families Citing this family (249)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7713297B2 (en) | 1998-04-11 | 2010-05-11 | Boston Scientific Scimed, Inc. | Drug-releasing stent with ceramic-containing layer |
US7037330B1 (en) * | 2000-10-16 | 2006-05-02 | Scimed Life Systems, Inc. | Neurovascular stent and method |
AU2002345328A1 (en) | 2001-06-27 | 2003-03-03 | Remon Medical Technologies Ltd. | Method and device for electrochemical formation of therapeutic species in vivo |
JP4351405B2 (en) * | 2001-08-29 | 2009-10-28 | インターナショナル・ビジネス・マシーンズ・コーポレーション | Transcoding system and annotation management device |
US6989024B2 (en) * | 2002-02-28 | 2006-01-24 | Counter Clockwise, Inc. | Guidewire loaded stent for delivery through a catheter |
US6866679B2 (en) | 2002-03-12 | 2005-03-15 | Ev3 Inc. | Everting stent and stent delivery system |
DE10233085B4 (en) | 2002-07-19 | 2014-02-20 | Dendron Gmbh | Stent with guide wire |
US7001422B2 (en) * | 2002-09-23 | 2006-02-21 | Cordis Neurovascular, Inc | Expandable stent and delivery system |
US20040193246A1 (en) * | 2003-03-25 | 2004-09-30 | Microvention, Inc. | Methods and apparatus for treating aneurysms and other vascular defects |
US7473271B2 (en) * | 2003-04-11 | 2009-01-06 | Boston Scientific Scimed, Inc. | Stent delivery system with securement and deployment accuracy |
US20040267348A1 (en) * | 2003-04-11 | 2004-12-30 | Gunderson Richard C. | Medical device delivery systems |
US7470282B2 (en) * | 2003-06-30 | 2008-12-30 | Boston Scientific Scimed, Inc. | Stent grip and system for use therewith |
US20050049668A1 (en) * | 2003-08-29 | 2005-03-03 | Jones Donald K. | Self-expanding stent and stent delivery system for treatment of vascular stenosis |
US20050049670A1 (en) * | 2003-08-29 | 2005-03-03 | Jones Donald K. | Self-expanding stent and stent delivery system for treatment of vascular disease |
WO2005079339A2 (en) * | 2004-02-12 | 2005-09-01 | The University Of Akron | Improved stent for use in arteries |
US8500751B2 (en) | 2004-03-31 | 2013-08-06 | Merlin Md Pte Ltd | Medical device |
US8500785B2 (en) * | 2004-07-13 | 2013-08-06 | Boston Scientific Scimed, Inc. | Catheter |
US7303580B2 (en) * | 2004-07-26 | 2007-12-04 | Cook Incorporated | Stent delivery system allowing controlled release of a stent |
US8795315B2 (en) | 2004-10-06 | 2014-08-05 | Cook Medical Technologies Llc | Emboli capturing device having a coil and method for capturing emboli |
US7666217B2 (en) * | 2004-10-29 | 2010-02-23 | Boston Scientific Scimed, Inc. | Implantable medical endoprosthesis delivery systems and related components |
US9339403B2 (en) * | 2004-11-12 | 2016-05-17 | Icon Medical Corp. | Medical adhesive for medical devices |
WO2006033641A1 (en) * | 2004-12-22 | 2006-03-30 | Merlin Md Pte Ltd | A medical device |
DE102005003632A1 (en) | 2005-01-20 | 2006-08-17 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Catheter for the transvascular implantation of heart valve prostheses |
US20060206199A1 (en) * | 2005-03-12 | 2006-09-14 | Churchwell Stacey D | Aneurysm treatment devices |
US20060206198A1 (en) * | 2005-03-12 | 2006-09-14 | Churchwell Stacey D | Aneurysm treatment devices and methods |
US8221446B2 (en) | 2005-03-15 | 2012-07-17 | Cook Medical Technologies | Embolic protection device |
US8945169B2 (en) | 2005-03-15 | 2015-02-03 | Cook Medical Technologies Llc | Embolic protection device |
CN102302390B (en) | 2005-04-04 | 2016-05-25 | 灵活支架解决方案股份有限公司 | Flexible stent |
US8187298B2 (en) | 2005-08-04 | 2012-05-29 | Cook Medical Technologies Llc | Embolic protection device having inflatable frame |
US8377092B2 (en) | 2005-09-16 | 2013-02-19 | Cook Medical Technologies Llc | Embolic protection device |
US8632562B2 (en) | 2005-10-03 | 2014-01-21 | Cook Medical Technologies Llc | Embolic protection device |
US8182508B2 (en) | 2005-10-04 | 2012-05-22 | Cook Medical Technologies Llc | Embolic protection device |
US8252017B2 (en) | 2005-10-18 | 2012-08-28 | Cook Medical Technologies Llc | Invertible filter for embolic protection |
US8216269B2 (en) | 2005-11-02 | 2012-07-10 | Cook Medical Technologies Llc | Embolic protection device having reduced profile |
US8152831B2 (en) | 2005-11-17 | 2012-04-10 | Cook Medical Technologies Llc | Foam embolic protection device |
US20070213813A1 (en) | 2005-12-22 | 2007-09-13 | Symetis Sa | Stent-valves for valve replacement and associated methods and systems for surgery |
US20070156230A1 (en) | 2006-01-04 | 2007-07-05 | Dugan Stephen R | Stents with radiopaque markers |
US8840660B2 (en) | 2006-01-05 | 2014-09-23 | Boston Scientific Scimed, Inc. | Bioerodible endoprostheses and methods of making the same |
US8089029B2 (en) | 2006-02-01 | 2012-01-03 | Boston Scientific Scimed, Inc. | Bioabsorbable metal medical device and method of manufacture |
US20070203563A1 (en) * | 2006-02-13 | 2007-08-30 | Stephen Hebert | System for delivering a stent |
US20070224235A1 (en) | 2006-03-24 | 2007-09-27 | Barron Tenney | Medical devices having nanoporous coatings for controlled therapeutic agent delivery |
US8187620B2 (en) | 2006-03-27 | 2012-05-29 | Boston Scientific Scimed, Inc. | Medical devices comprising a porous metal oxide or metal material and a polymer coating for delivering therapeutic agents |
US9089404B2 (en) * | 2006-03-31 | 2015-07-28 | Covidien Lp | Embolic protection devices having radiopaque elements |
US8048150B2 (en) | 2006-04-12 | 2011-11-01 | Boston Scientific Scimed, Inc. | Endoprosthesis having a fiber meshwork disposed thereon |
US7655031B2 (en) * | 2006-04-28 | 2010-02-02 | Codman & Shurtleff, Inc. | Stent delivery system with improved retraction member |
US8690935B2 (en) | 2006-04-28 | 2014-04-08 | DePuy Synthes Products, LLC | Stent delivery system with threaded engagement and method |
US8690938B2 (en) * | 2006-05-26 | 2014-04-08 | DePuy Synthes Products, LLC | Occlusion device combination of stent and mesh with diamond-shaped porosity |
US8118859B2 (en) * | 2006-05-26 | 2012-02-21 | Codman & Shurtleff, Inc. | Occlusion device combination of stent and mesh having offset parallelogram porosity |
US8815275B2 (en) | 2006-06-28 | 2014-08-26 | Boston Scientific Scimed, Inc. | Coatings for medical devices comprising a therapeutic agent and a metallic material |
JP2009542359A (en) | 2006-06-29 | 2009-12-03 | ボストン サイエンティフィック リミテッド | Medical device with selective covering |
DE102006033399B4 (en) * | 2006-07-19 | 2009-04-09 | Jotec Gmbh | Marker system and delivery system for such a marker system |
US8052743B2 (en) | 2006-08-02 | 2011-11-08 | Boston Scientific Scimed, Inc. | Endoprosthesis with three-dimensional disintegration control |
EP2068757B1 (en) | 2006-09-14 | 2011-05-11 | Boston Scientific Limited | Medical devices with drug-eluting coating |
WO2008034048A2 (en) | 2006-09-15 | 2008-03-20 | Boston Scientific Limited | Bioerodible endoprosthesis with biostable inorganic layers |
US8057534B2 (en) | 2006-09-15 | 2011-11-15 | Boston Scientific Scimed, Inc. | Bioerodible endoprostheses and methods of making the same |
EP2959925B1 (en) | 2006-09-15 | 2018-08-29 | Boston Scientific Limited | Medical devices and methods of making the same |
JP2010503489A (en) | 2006-09-15 | 2010-02-04 | ボストン サイエンティフィック リミテッド | Biodegradable endoprosthesis and method for producing the same |
US8002821B2 (en) | 2006-09-18 | 2011-08-23 | Boston Scientific Scimed, Inc. | Bioerodible metallic ENDOPROSTHESES |
US20080071307A1 (en) | 2006-09-19 | 2008-03-20 | Cook Incorporated | Apparatus and methods for in situ embolic protection |
US20080269774A1 (en) * | 2006-10-26 | 2008-10-30 | Chestnut Medical Technologies, Inc. | Intracorporeal Grasping Device |
EP2089092A2 (en) * | 2006-11-02 | 2009-08-19 | Pakbaz, R. Sean | Devices and methods for accessing and treating an aneurysm |
US7981150B2 (en) | 2006-11-09 | 2011-07-19 | Boston Scientific Scimed, Inc. | Endoprosthesis with coatings |
JP4973173B2 (en) * | 2006-12-15 | 2012-07-11 | ニプロ株式会社 | Stent delivery system |
ES2356274T3 (en) | 2006-12-28 | 2011-04-06 | Boston Scientific Limited | BIODEGRADABLE ENDOPROTESIS AND MANUFACTURING PROCEDURES OF THE SAME. |
US9901434B2 (en) | 2007-02-27 | 2018-02-27 | Cook Medical Technologies Llc | Embolic protection device including a Z-stent waist band |
US8431149B2 (en) | 2007-03-01 | 2013-04-30 | Boston Scientific Scimed, Inc. | Coated medical devices for abluminal drug delivery |
US8070797B2 (en) | 2007-03-01 | 2011-12-06 | Boston Scientific Scimed, Inc. | Medical device with a porous surface for delivery of a therapeutic agent |
US8045248B2 (en) * | 2007-03-09 | 2011-10-25 | Ricoh Company, Ltd. | Optical scanning device and image forming apparatus |
US20080255654A1 (en) * | 2007-03-22 | 2008-10-16 | Bay Street Medical | System for delivering a stent |
US8062347B2 (en) * | 2007-03-23 | 2011-11-22 | Codman & Shurtleff, Inc. | Implantable stents having a plurality of varying parallelogrammic cells and methods for manufacturing the same |
US20080243226A1 (en) * | 2007-03-30 | 2008-10-02 | Fernandez Jose E | Implantable stents with radiopaque markers and methods for manufacturing the same |
US8545548B2 (en) | 2007-03-30 | 2013-10-01 | DePuy Synthes Products, LLC | Radiopaque markers for implantable stents and methods for manufacturing the same |
US8067054B2 (en) | 2007-04-05 | 2011-11-29 | Boston Scientific Scimed, Inc. | Stents with ceramic drug reservoir layer and methods of making and using the same |
US7896915B2 (en) | 2007-04-13 | 2011-03-01 | Jenavalve Technology, Inc. | Medical device for treating a heart valve insufficiency |
US7976915B2 (en) | 2007-05-23 | 2011-07-12 | Boston Scientific Scimed, Inc. | Endoprosthesis with select ceramic morphology |
WO2009003049A2 (en) * | 2007-06-25 | 2008-12-31 | Micro Vention, Inc. | Self-expanding prosthesis |
US8002823B2 (en) | 2007-07-11 | 2011-08-23 | Boston Scientific Scimed, Inc. | Endoprosthesis coating |
US7942926B2 (en) | 2007-07-11 | 2011-05-17 | Boston Scientific Scimed, Inc. | Endoprosthesis coating |
EP2187988B1 (en) | 2007-07-19 | 2013-08-21 | Boston Scientific Limited | Endoprosthesis having a non-fouling surface |
US9144508B2 (en) | 2007-07-19 | 2015-09-29 | Back Bay Medical Inc. | Radially expandable stent |
US7931683B2 (en) | 2007-07-27 | 2011-04-26 | Boston Scientific Scimed, Inc. | Articles having ceramic coated surfaces |
US8815273B2 (en) | 2007-07-27 | 2014-08-26 | Boston Scientific Scimed, Inc. | Drug eluting medical devices having porous layers |
WO2009018340A2 (en) | 2007-07-31 | 2009-02-05 | Boston Scientific Scimed, Inc. | Medical device coating by laser cladding |
US7988723B2 (en) | 2007-08-02 | 2011-08-02 | Flexible Stenting Solutions, Inc. | Flexible stent |
JP2010535541A (en) | 2007-08-03 | 2010-11-25 | ボストン サイエンティフィック リミテッド | Coating for medical devices with large surface area |
US8052745B2 (en) | 2007-09-13 | 2011-11-08 | Boston Scientific Scimed, Inc. | Endoprosthesis |
US8419748B2 (en) | 2007-09-14 | 2013-04-16 | Cook Medical Technologies Llc | Helical thrombus removal device |
US8252018B2 (en) | 2007-09-14 | 2012-08-28 | Cook Medical Technologies Llc | Helical embolic protection device |
US9138307B2 (en) | 2007-09-14 | 2015-09-22 | Cook Medical Technologies Llc | Expandable device for treatment of a stricture in a body vessel |
US20100174309A1 (en) * | 2008-05-19 | 2010-07-08 | Mindframe, Inc. | Recanalization/revascularization and embolus addressing systems including expandable tip neuro-microcatheter |
US20100256600A1 (en) * | 2009-04-04 | 2010-10-07 | Ferrera David A | Neurovascular otw pta balloon catheter and delivery system |
US8029554B2 (en) | 2007-11-02 | 2011-10-04 | Boston Scientific Scimed, Inc. | Stent with embedded material |
US8216632B2 (en) | 2007-11-02 | 2012-07-10 | Boston Scientific Scimed, Inc. | Endoprosthesis coating |
US7938855B2 (en) | 2007-11-02 | 2011-05-10 | Boston Scientific Scimed, Inc. | Deformable underlayer for stent |
US7833266B2 (en) | 2007-11-28 | 2010-11-16 | Boston Scientific Scimed, Inc. | Bifurcated stent with drug wells for specific ostial, carina, and side branch treatment |
US20110230954A1 (en) * | 2009-06-11 | 2011-09-22 | Peter Schneider | Stent device having focal elevating elements for minimal surface area contact with lumen walls |
US9375327B2 (en) | 2007-12-12 | 2016-06-28 | Intact Vascular, Inc. | Endovascular implant |
US9603730B2 (en) | 2007-12-12 | 2017-03-28 | Intact Vascular, Inc. | Endoluminal device and method |
US10166127B2 (en) | 2007-12-12 | 2019-01-01 | Intact Vascular, Inc. | Endoluminal device and method |
US10022250B2 (en) | 2007-12-12 | 2018-07-17 | Intact Vascular, Inc. | Deployment device for placement of multiple intraluminal surgical staples |
US8128677B2 (en) * | 2007-12-12 | 2012-03-06 | Intact Vascular LLC | Device and method for tacking plaque to a blood vessel wall |
US7896911B2 (en) | 2007-12-12 | 2011-03-01 | Innovasc Llc | Device and method for tacking plaque to blood vessel wall |
US9242070B2 (en) * | 2007-12-21 | 2016-01-26 | MicronVention, Inc. | System and method for locating detachment zone of a detachable implant |
WO2009086214A1 (en) | 2007-12-21 | 2009-07-09 | Microvention, Inc. | A system and method of detecting implant detachment |
EP2237828A4 (en) * | 2008-01-07 | 2013-06-05 | Intersect Partners Llc | Novel enhanced ptna rapid exchange type of catheter system |
US9364324B2 (en) | 2008-01-24 | 2016-06-14 | Medtronic Vascular, Inc. | Infundibular reducer device delivery system and related methods |
WO2009105699A1 (en) | 2008-02-22 | 2009-08-27 | Endologix, Inc. | Design and method of placement of a graft or graft system |
US9044318B2 (en) | 2008-02-26 | 2015-06-02 | Jenavalve Technology Gmbh | Stent for the positioning and anchoring of a valvular prosthesis |
BR112012021347A2 (en) | 2008-02-26 | 2019-09-24 | Jenavalve Tecnology Inc | stent for positioning and anchoring a valve prosthesis at an implantation site in a patient's heart |
US20110295181A1 (en) | 2008-03-05 | 2011-12-01 | Hemosphere, Inc. | Implantable and removable customizable body conduit |
WO2009131911A2 (en) | 2008-04-22 | 2009-10-29 | Boston Scientific Scimed, Inc. | Medical devices having a coating of inorganic material |
WO2009132176A2 (en) | 2008-04-24 | 2009-10-29 | Boston Scientific Scimed, Inc. | Medical devices having inorganic particle layers |
US10716573B2 (en) | 2008-05-01 | 2020-07-21 | Aneuclose | Janjua aneurysm net with a resilient neck-bridging portion for occluding a cerebral aneurysm |
US10028747B2 (en) | 2008-05-01 | 2018-07-24 | Aneuclose Llc | Coils with a series of proximally-and-distally-connected loops for occluding a cerebral aneurysm |
US9597087B2 (en) | 2008-05-02 | 2017-03-21 | Sequent Medical, Inc. | Filamentary devices for treatment of vascular defects |
US7998192B2 (en) | 2008-05-09 | 2011-08-16 | Boston Scientific Scimed, Inc. | Endoprostheses |
US8876876B2 (en) * | 2008-06-06 | 2014-11-04 | Back Bay Medical Inc. | Prosthesis and delivery system |
US8236046B2 (en) | 2008-06-10 | 2012-08-07 | Boston Scientific Scimed, Inc. | Bioerodible endoprosthesis |
EP2303350A2 (en) | 2008-06-18 | 2011-04-06 | Boston Scientific Scimed, Inc. | Endoprosthesis coating |
US7951193B2 (en) | 2008-07-23 | 2011-05-31 | Boston Scientific Scimed, Inc. | Drug-eluting stent |
US7985252B2 (en) | 2008-07-30 | 2011-07-26 | Boston Scientific Scimed, Inc. | Bioerodible endoprosthesis |
US8382824B2 (en) | 2008-10-03 | 2013-02-26 | Boston Scientific Scimed, Inc. | Medical implant having NANO-crystal grains with barrier layers of metal nitrides or fluorides |
US9149376B2 (en) | 2008-10-06 | 2015-10-06 | Cordis Corporation | Reconstrainable stent delivery system |
US8231980B2 (en) | 2008-12-03 | 2012-07-31 | Boston Scientific Scimed, Inc. | Medical implants including iridium oxide |
US8388644B2 (en) | 2008-12-29 | 2013-03-05 | Cook Medical Technologies Llc | Embolic protection device and method of use |
DE102009003890A1 (en) | 2009-01-02 | 2010-07-08 | Bioregeneration Gmbh | Apparatus comprising a device and a liner implantable in a vessel of the body of a patient, and methods of making same |
CN101779992B (en) * | 2009-01-19 | 2012-08-22 | 加奇生物科技(上海)有限公司 | Conveying device for retrievable self-eject nervi cerebrales stent |
JP5478091B2 (en) * | 2009-02-26 | 2014-04-23 | 河邊 大輔 | Microcatheter system and stent system |
US8267992B2 (en) | 2009-03-02 | 2012-09-18 | Boston Scientific Scimed, Inc. | Self-buffering medical implants |
US8071156B2 (en) | 2009-03-04 | 2011-12-06 | Boston Scientific Scimed, Inc. | Endoprostheses |
US20100274276A1 (en) * | 2009-04-22 | 2010-10-28 | Ricky Chow | Aneurysm treatment system, device and method |
US8287937B2 (en) | 2009-04-24 | 2012-10-16 | Boston Scientific Scimed, Inc. | Endoprosthese |
JP5629871B2 (en) | 2009-04-28 | 2014-11-26 | エンドロジックス、インク | Apparatus and method for deploying a graft or graft system |
US9936892B1 (en) | 2009-05-04 | 2018-04-10 | Cortex Manufacturing Inc. | Systems and methods for providing a fiducial marker |
US20100318171A1 (en) * | 2009-06-15 | 2010-12-16 | Boston Scientific Scimed, Inc. | Multiple Stent Delivery System |
WO2010147808A1 (en) * | 2009-06-15 | 2010-12-23 | Boston Scientific Scimed, Inc. | Multiple stent delivery system |
US9358140B1 (en) | 2009-11-18 | 2016-06-07 | Aneuclose Llc | Stent with outer member to embolize an aneurysm |
CN102188300B (en) * | 2010-03-02 | 2014-05-28 | 上海微创医疗器械(集团)有限公司 | Aneurismal surgical device |
WO2011119573A1 (en) | 2010-03-23 | 2011-09-29 | Boston Scientific Scimed, Inc. | Surface treated bioerodible metal endoprostheses |
CA2795740C (en) | 2010-04-14 | 2018-03-13 | Microvention, Inc. | Implant delivery device |
US9744031B2 (en) | 2010-05-25 | 2017-08-29 | Jenavalve Technology, Inc. | Prosthetic heart valve and endoprosthesis comprising a prosthetic heart valve and a stent |
DE102010024085B4 (en) | 2010-06-17 | 2012-10-18 | Acandis Gmbh & Co. Kg | Delivery system for a medical functional element |
DE102010044746A1 (en) * | 2010-09-08 | 2012-03-08 | Phenox Gmbh | Implant for influencing the blood flow in arteriovenous malformations |
US9039749B2 (en) | 2010-10-01 | 2015-05-26 | Covidien Lp | Methods and apparatuses for flow restoration and implanting members in the human body |
JP6261339B2 (en) | 2010-11-02 | 2018-01-17 | エンドロジックス、インク | Apparatus and method for placement of a graft or graft system |
CN103547235B (en) * | 2011-02-04 | 2016-04-27 | 同心医疗公司 | The therapy equipment of blood vessel and body inner catheter and method |
US9028540B2 (en) * | 2011-03-25 | 2015-05-12 | Covidien Lp | Vascular stent with improved vessel wall apposition |
US10285831B2 (en) | 2011-06-03 | 2019-05-14 | Intact Vascular, Inc. | Endovascular implant |
CN102429750B (en) | 2011-08-15 | 2015-05-20 | 上海微创医疗器械(集团)有限公司 | Intravascular stent with improved developing performance and method for improving developing performance of intravascular stent |
US9278172B2 (en) | 2011-09-06 | 2016-03-08 | Cryolife, Inc. | Vascular access system with connector |
US8771341B2 (en) | 2011-11-04 | 2014-07-08 | Reverse Medical Corporation | Protuberant aneurysm bridging device and method of use |
US9072620B2 (en) | 2011-11-04 | 2015-07-07 | Covidien Lp | Protuberant aneurysm bridging device deployment method |
DK2775968T3 (en) * | 2011-11-11 | 2017-12-18 | Medigroup Gmbh | Device for implanting stent elements in a hollow member |
US9220620B2 (en) * | 2011-11-22 | 2015-12-29 | Cook Medical Technologies Llc | Endoluminal prosthesis introducer |
EP3733134A1 (en) * | 2012-01-25 | 2020-11-04 | Intact Vascular, Inc. | Endoluminal device |
GB2499377B (en) * | 2012-02-01 | 2014-04-30 | Cook Medical Technologies Llc | Implantable medical device |
US20130226278A1 (en) | 2012-02-23 | 2013-08-29 | Tyco Healthcare Group Lp | Methods and apparatus for luminal stenting |
US9072624B2 (en) | 2012-02-23 | 2015-07-07 | Covidien Lp | Luminal stenting |
WO2013152327A1 (en) | 2012-04-06 | 2013-10-10 | Merlin Md Pte Ltd. | Devices and methods for treating an aneurysm |
US9078659B2 (en) | 2012-04-23 | 2015-07-14 | Covidien Lp | Delivery system with hooks for resheathability |
US9233015B2 (en) | 2012-06-15 | 2016-01-12 | Trivascular, Inc. | Endovascular delivery system with an improved radiopaque marker scheme |
US9724222B2 (en) | 2012-07-20 | 2017-08-08 | Covidien Lp | Resheathable stent delivery system |
US20140046429A1 (en) * | 2012-08-10 | 2014-02-13 | Altura Medical, Inc. | Stent delivery systems and associated methods |
US9254205B2 (en) | 2012-09-27 | 2016-02-09 | Covidien Lp | Vascular stent with improved vessel wall apposition |
US20140128901A1 (en) * | 2012-11-05 | 2014-05-08 | Kevin Kang | Implant for aneurysm treatment |
WO2014093197A1 (en) * | 2012-12-11 | 2014-06-19 | Covidien Lp | Systems for diagnosing and/or treating medical conditions |
US10219924B2 (en) | 2012-12-26 | 2019-03-05 | Stryker Corporation | Multilayer stent |
US20140277360A1 (en) * | 2013-03-13 | 2014-09-18 | DePuy Synthes Products, LLC | Delivery system for expandable stents |
US10603157B2 (en) | 2013-03-13 | 2020-03-31 | DePuy Synthes Products, Inc. | Braid implant delivery and retraction device with distal engagement |
US10561509B2 (en) * | 2013-03-13 | 2020-02-18 | DePuy Synthes Products, Inc. | Braided stent with expansion ring and method of delivery |
US10172734B2 (en) | 2013-03-13 | 2019-01-08 | DePuy Synthes Products, Inc. | Capture tube mechanism for delivering and releasing a stent |
US9629739B2 (en) | 2013-03-13 | 2017-04-25 | DePuy Synthes Products, LLC | Distal capture device for a self-expanding stent |
US9149278B2 (en) | 2013-03-13 | 2015-10-06 | DePuy Synthes Products, Inc. | Occlusive device delivery system with mechanical detachment |
US9351860B2 (en) | 2013-03-14 | 2016-05-31 | Cook Medical Technologies Llc | Loading tool for capturing stent points |
RU2684841C2 (en) * | 2013-03-15 | 2019-04-15 | Микротек Медикал Текнолоджис Лтд. | Placement system implantable fastening element, method for assembly of such system and fastening element (options) |
US9737426B2 (en) | 2013-03-15 | 2017-08-22 | Altura Medical, Inc. | Endograft device delivery systems and associated methods |
US9907684B2 (en) | 2013-05-08 | 2018-03-06 | Aneuclose Llc | Method of radially-asymmetric stent expansion |
JP2014233592A (en) | 2013-06-05 | 2014-12-15 | 朝日インテック株式会社 | Pusher guide wire |
US10130500B2 (en) | 2013-07-25 | 2018-11-20 | Covidien Lp | Methods and apparatus for luminal stenting |
US10010328B2 (en) | 2013-07-31 | 2018-07-03 | NeuVT Limited | Endovascular occlusion device with hemodynamically enhanced sealing and anchoring |
US9681876B2 (en) | 2013-07-31 | 2017-06-20 | EMBA Medical Limited | Methods and devices for endovascular embolization |
US9955976B2 (en) | 2013-08-16 | 2018-05-01 | Sequent Medical, Inc. | Filamentary devices for treatment of vascular defects |
US9078658B2 (en) | 2013-08-16 | 2015-07-14 | Sequent Medical, Inc. | Filamentary devices for treatment of vascular defects |
JP6563394B2 (en) | 2013-08-30 | 2019-08-21 | イェーナヴァルヴ テクノロジー インコーポレイテッド | Radially foldable frame for an artificial valve and method for manufacturing the frame |
US10076399B2 (en) | 2013-09-13 | 2018-09-18 | Covidien Lp | Endovascular device engagement |
WO2015094514A1 (en) | 2013-12-20 | 2015-06-25 | Cryolife, Inc. | Vascular access system with reinforcement member |
US9629635B2 (en) * | 2014-04-14 | 2017-04-25 | Sequent Medical, Inc. | Devices for therapeutic vascular procedures |
KR102247660B1 (en) * | 2014-06-18 | 2021-05-04 | 보스톤 싸이엔티픽 싸이메드 인코포레이티드 | Biliary stent |
US10206796B2 (en) | 2014-08-27 | 2019-02-19 | DePuy Synthes Products, Inc. | Multi-strand implant with enhanced radiopacity |
JP2016073553A (en) | 2014-10-08 | 2016-05-12 | 朝日インテック株式会社 | Pusher guide wire |
JP2016077765A (en) * | 2014-10-22 | 2016-05-16 | 朝日インテック株式会社 | Guide wire |
US10080660B2 (en) * | 2014-12-19 | 2018-09-25 | Paradox Medical Limited | Implantable intracardiac device and methods thereof |
US11484319B2 (en) | 2015-01-20 | 2022-11-01 | Neurogami Medical, Inc. | Delivery system for micrograft for treating intracranial aneurysms |
US10736730B2 (en) | 2015-01-20 | 2020-08-11 | Neurogami Medical, Inc. | Vascular implant |
US10925611B2 (en) | 2015-01-20 | 2021-02-23 | Neurogami Medical, Inc. | Packaging for surgical implant |
EP3247285B1 (en) | 2015-01-20 | 2021-08-11 | Neurogami Medical, Inc. | Micrograft for the treatment of intracranial aneurysms |
US9456914B2 (en) | 2015-01-29 | 2016-10-04 | Intact Vascular, Inc. | Delivery device and method of delivery |
US9375336B1 (en) | 2015-01-29 | 2016-06-28 | Intact Vascular, Inc. | Delivery device and method of delivery |
US9433520B2 (en) | 2015-01-29 | 2016-09-06 | Intact Vascular, Inc. | Delivery device and method of delivery |
US9192500B1 (en) | 2015-01-29 | 2015-11-24 | Intact Vascular, Inc. | Delivery device and method of delivery |
US9999527B2 (en) * | 2015-02-11 | 2018-06-19 | Abbott Cardiovascular Systems Inc. | Scaffolds having radiopaque markers |
EP3261582B1 (en) * | 2015-02-26 | 2021-01-06 | Remodeless CV Ltd. | Methods and compositions relating to leptin antagonists |
JP2018507056A (en) | 2015-03-05 | 2018-03-15 | メリット・メディカル・システムズ・インコーポレイテッドMerit Medical Systems,Inc. | Artificial blood vessel deployment device and method of use |
JP6499497B2 (en) * | 2015-04-15 | 2019-04-10 | 株式会社Pentas | Pusher guide wire |
CN107530168B (en) | 2015-05-01 | 2020-06-09 | 耶拿阀门科技股份有限公司 | Device and method with reduced pacemaker ratio in heart valve replacement |
US9700443B2 (en) | 2015-06-12 | 2017-07-11 | Abbott Cardiovascular Systems Inc. | Methods for attaching a radiopaque marker to a scaffold |
EP3139860B1 (en) | 2015-06-30 | 2024-06-12 | Endologix LLC | Locking assembly for coupling guidewire to delivery system |
WO2017023527A1 (en) | 2015-08-03 | 2017-02-09 | Advanced Endovascular Therapeutics | Novel coatings for medical devices |
US10470906B2 (en) | 2015-09-15 | 2019-11-12 | Merit Medical Systems, Inc. | Implantable device delivery system |
US10182931B2 (en) | 2015-09-18 | 2019-01-22 | Microvention, Inc. | Releasable delivery system |
JP6854282B2 (en) | 2015-09-18 | 2021-04-07 | テルモ株式会社 | Pressable implant delivery system |
US10639456B2 (en) | 2015-09-28 | 2020-05-05 | Microvention, Inc. | Guidewire with torque transmission element |
US10993824B2 (en) | 2016-01-01 | 2021-05-04 | Intact Vascular, Inc. | Delivery device and method of delivery |
EP3454795B1 (en) | 2016-05-13 | 2023-01-11 | JenaValve Technology, Inc. | Heart valve prosthesis delivery system for delivery of heart valve prosthesis with introducer sheath and loading system |
US10076428B2 (en) | 2016-08-25 | 2018-09-18 | DePuy Synthes Products, Inc. | Expansion ring for a braided stent |
CN115054413A (en) | 2016-09-29 | 2022-09-16 | 美国医疗设备有限公司 | Method of adjusting effective length of stent and prosthesis delivery catheter assembly |
US10292851B2 (en) | 2016-09-30 | 2019-05-21 | DePuy Synthes Products, Inc. | Self-expanding device delivery apparatus with dual function bump |
WO2018089625A2 (en) | 2016-11-10 | 2018-05-17 | Merit Medical Systems, Inc. | Anchor device for vascular anastomosis |
EP3568173A4 (en) | 2017-01-12 | 2020-11-25 | Merit Medical Systems, Inc. | Methods and systems for selection and use of connectors between conduits |
EP3573682A4 (en) | 2017-01-25 | 2020-11-04 | Merit Medical Systems, Inc. | Methods and systems for facilitating laminar flow between conduits |
EP3573579B1 (en) | 2017-01-27 | 2023-12-20 | JenaValve Technology, Inc. | Heart valve mimicry |
US10905578B2 (en) * | 2017-02-02 | 2021-02-02 | C. R. Bard, Inc. | Short stent |
CN108464879B (en) * | 2017-02-21 | 2020-04-10 | 上海微创医疗器械(集团)有限公司 | Support frame |
EP3592401A4 (en) | 2017-03-06 | 2021-01-06 | Merit Medical Systems, Inc. | Vascular access assembly declotting systems and methods |
EP3595596B1 (en) | 2017-03-15 | 2023-09-06 | Merit Medical Systems, Inc. | Transluminal delivery devices and related kits |
WO2018170064A1 (en) | 2017-03-15 | 2018-09-20 | Merit Medical Systems, Inc. | Transluminal stents and related methods |
USD836194S1 (en) | 2017-03-21 | 2018-12-18 | Merit Medical Systems, Inc. | Stent deployment device |
WO2018175850A1 (en) | 2017-03-24 | 2018-09-27 | Merit Medical Systems, Inc. | Subcutaneous vascular assemblies for improving blood flow and related devices and methods |
EP3630008B1 (en) * | 2017-05-30 | 2024-03-27 | University of Massachusetts | System for treating neurovascular compression |
EP3651829A4 (en) | 2017-07-14 | 2021-04-21 | Merit Medical Systems, Inc. | Releasable conduit connectors |
WO2019018653A1 (en) | 2017-07-20 | 2019-01-24 | Merit Medical Systems, Inc. | Methods and systems for coupling conduits |
US11660218B2 (en) | 2017-07-26 | 2023-05-30 | Intact Vascular, Inc. | Delivery device and method of delivery |
EP3703627A4 (en) | 2017-10-31 | 2021-08-11 | Merit Medical Systems, Inc. | Subcutaneous vascular assemblies for improving blood flow and related devices and methods |
GB201718299D0 (en) | 2017-11-03 | 2017-12-20 | Ab Wasstand Dev | Stents |
WO2019108217A1 (en) | 2017-12-01 | 2019-06-06 | C.R. Bard, Inc. | Adjustable vascular graft for custom inner diameter reduction and related methods |
AU2019204522A1 (en) | 2018-07-30 | 2020-02-13 | DePuy Synthes Products, Inc. | Systems and methods of manufacturing and using an expansion ring |
US10456280B1 (en) | 2018-08-06 | 2019-10-29 | DePuy Synthes Products, Inc. | Systems and methods of using a braided implant |
IL268468A (en) | 2018-08-06 | 2020-02-27 | Depuy Synthes Products Inc | Braid implant delivery and retraction device with distal engagement |
US10278848B1 (en) | 2018-08-06 | 2019-05-07 | DePuy Synthes Products, Inc. | Stent delivery with expansion assisting delivery wire |
CN111317601A (en) * | 2018-12-12 | 2020-06-23 | 先健科技(深圳)有限公司 | Trachea support |
US11039944B2 (en) | 2018-12-27 | 2021-06-22 | DePuy Synthes Products, Inc. | Braided stent system with one or more expansion rings |
GB201908576D0 (en) * | 2019-06-14 | 2019-07-31 | Oxford Endovascular Ltd | Delivery system for deploying a self-expanding tube, and method of deploying a self-expanding tube |
US11406403B2 (en) | 2019-06-14 | 2022-08-09 | Neuravi Limited | Visibility of mechanical thrombectomy device during diagnostic imaging |
US11109939B2 (en) * | 2019-06-14 | 2021-09-07 | DePuy Synthes Products, Inc. | Intravascular devices with radiopaque body markers |
CN110151368A (en) * | 2019-06-28 | 2019-08-23 | 微创神通医疗科技(上海)有限公司 | Vascular implant, conveying device and Medical Devices |
US12016774B2 (en) | 2020-05-08 | 2024-06-25 | Medtronic Vascular, Inc. | Delivery system for prosthetic valve device having controlled release of inflow and outflow ends |
US20210353300A1 (en) | 2020-05-15 | 2021-11-18 | DePuy Synthes Products, Inc. | Systems and methods for treatment of defects in the vasculature |
CA3194910A1 (en) | 2020-10-26 | 2022-05-05 | Tiffany ETHRIDGE | Esophageal stents with helical thread |
CN116849750B (en) * | 2023-09-02 | 2023-11-21 | 杭州亿科医疗科技有限公司 | Aneurysm turbulent flow device capable of being mechanically released |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4768507A (en) * | 1986-02-24 | 1988-09-06 | Medinnovations, Inc. | Intravascular stent and percutaneous insertion catheter system for the dilation of an arterial stenosis and the prevention of arterial restenosis |
US5147370A (en) * | 1991-06-12 | 1992-09-15 | Mcnamara Thomas O | Nitinol stent for hollow body conduits |
US5288711A (en) * | 1992-04-28 | 1994-02-22 | American Home Products Corporation | Method of treating hyperproliferative vascular disease |
US5516781A (en) * | 1992-01-09 | 1996-05-14 | American Home Products Corporation | Method of treating restenosis with rapamycin |
US20010027339A1 (en) * | 1997-09-24 | 2001-10-04 | Boatman Scott E. | Radially expandable stent |
US20010049547A1 (en) * | 2000-02-04 | 2001-12-06 | Moore Scott T. | Stent introducer apparatus |
US20020055767A1 (en) * | 2000-10-18 | 2002-05-09 | Forde Sean T. | Over-the-wire interlock attachment/detachment mechanism |
US20020120323A1 (en) * | 2001-02-26 | 2002-08-29 | Intratherapeutics, Inc. | Implant delivery system with interlock |
US20020193868A1 (en) * | 2001-06-14 | 2002-12-19 | Vladimir Mitelberg | Intravascular stent device |
US20020193862A1 (en) * | 2001-06-14 | 2002-12-19 | Vladimir Mitelberg | Intravascular stent device |
US20030163189A1 (en) * | 2002-02-22 | 2003-08-28 | Richard Thompson | Apparatus and method for deployment of an endoluminal device |
Family Cites Families (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5104399A (en) | 1986-12-10 | 1992-04-14 | Endovascular Technologies, Inc. | Artificial graft and implantation method |
US5181601A (en) * | 1990-10-09 | 1993-01-26 | Palmaer K V | Plastic conveyor belt with integral sideplate |
CA2125258C (en) * | 1993-08-05 | 1998-12-22 | Dinah B Quiachon | Multicapsule intraluminal grafting system and method |
US5824044A (en) * | 1994-05-12 | 1998-10-20 | Endovascular Technologies, Inc. | Bifurcated multicapsule intraluminal grafting system |
US5824041A (en) | 1994-06-08 | 1998-10-20 | Medtronic, Inc. | Apparatus and methods for placement and repositioning of intraluminal prostheses |
US5709704A (en) * | 1994-11-30 | 1998-01-20 | Boston Scientific Corporation | Blood clot filtering |
US5702418A (en) | 1995-09-12 | 1997-12-30 | Boston Scientific Corporation | Stent delivery system |
US5935135A (en) | 1995-09-29 | 1999-08-10 | United States Surgical Corporation | Balloon delivery system for deploying stents |
GB9522332D0 (en) * | 1995-11-01 | 1996-01-03 | Biocompatibles Ltd | Braided stent |
US6334871B1 (en) | 1996-03-13 | 2002-01-01 | Medtronic, Inc. | Radiopaque stent markers |
US6077295A (en) | 1996-07-15 | 2000-06-20 | Advanced Cardiovascular Systems, Inc. | Self-expanding stent delivery system |
US6395017B1 (en) | 1996-11-15 | 2002-05-28 | C. R. Bard, Inc. | Endoprosthesis delivery catheter with sequential stage control |
US5741327A (en) | 1997-05-06 | 1998-04-21 | Global Therapeutics, Inc. | Surgical stent featuring radiopaque markers |
US6340367B1 (en) | 1997-08-01 | 2002-01-22 | Boston Scientific Scimed, Inc. | Radiopaque markers and methods of using the same |
US6051019A (en) * | 1998-01-23 | 2000-04-18 | Del Mar Medical Technologies, Inc. | Selective organ hypothermia method and apparatus |
US6290731B1 (en) * | 1998-03-30 | 2001-09-18 | Cordis Corporation | Aortic graft having a precursor gasket for repairing an abdominal aortic aneurysm |
US6063111A (en) | 1998-03-31 | 2000-05-16 | Cordis Corporation | Stent aneurysm treatment system and method |
US6126684A (en) | 1998-04-21 | 2000-10-03 | The Regents Of The University Of California | Indwelling heat exchange catheter and method of using same |
US6214036B1 (en) | 1998-11-09 | 2001-04-10 | Cordis Corporation | Stent which is easily recaptured and repositioned within the body |
US6231581B1 (en) * | 1998-12-16 | 2001-05-15 | Boston Scientific Corporation | Implantable device anchors |
DE29904817U1 (en) | 1999-03-16 | 1999-05-27 | amg Handelsgesellschaft für angewandte Medizin- und Gesundheitstechnik mbH, 46348 Raesfeld | Blood vessel support device |
JP4299973B2 (en) | 1999-05-20 | 2009-07-22 | ボストン サイエンティフィック リミテッド | Stent delivery system with a shrink stabilizer |
US6048350A (en) | 1999-06-14 | 2000-04-11 | Scimed Life Systems, Inc. | Segmented balloon delivery system |
FR2809009B1 (en) | 2000-05-22 | 2002-06-28 | Oreal | USE OF FIBERS AS AN ANTI-POLLUTION AGENT, PARTICULARLY IN A COSMETIC COMPOSITION |
DE10026307A1 (en) * | 2000-05-26 | 2001-11-29 | Variomed Ag Balzers | Stent, positioning element and insertion catheter |
US6582460B1 (en) | 2000-11-20 | 2003-06-24 | Advanced Cardiovascular Systems, Inc. | System and method for accurately deploying a stent |
EP1365707B2 (en) | 2001-02-26 | 2016-05-11 | Covidien LP | Implant delivery system with interlock |
US7195648B2 (en) * | 2002-05-16 | 2007-03-27 | Cordis Neurovascular, Inc. | Intravascular stent device |
US6833003B2 (en) * | 2002-06-24 | 2004-12-21 | Cordis Neurovascular | Expandable stent and delivery system |
US7001422B2 (en) * | 2002-09-23 | 2006-02-21 | Cordis Neurovascular, Inc | Expandable stent and delivery system |
US20050049668A1 (en) * | 2003-08-29 | 2005-03-03 | Jones Donald K. | Self-expanding stent and stent delivery system for treatment of vascular stenosis |
-
2003
- 2003-02-12 US US10/365,282 patent/US7001422B2/en not_active Expired - Lifetime
- 2003-06-27 US US10/608,659 patent/US6955685B2/en not_active Expired - Lifetime
- 2003-09-19 EP EP03255883A patent/EP1400219A1/en not_active Withdrawn
- 2003-09-22 JP JP2003330284A patent/JP4498709B2/en not_active Expired - Lifetime
-
2005
- 2005-08-19 US US11/208,292 patent/US7309351B2/en not_active Expired - Lifetime
- 2005-12-12 US US11/299,992 patent/US20060095213A1/en not_active Abandoned
- 2005-12-12 US US11/299,991 patent/US20060089703A1/en not_active Abandoned
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4768507A (en) * | 1986-02-24 | 1988-09-06 | Medinnovations, Inc. | Intravascular stent and percutaneous insertion catheter system for the dilation of an arterial stenosis and the prevention of arterial restenosis |
US5147370A (en) * | 1991-06-12 | 1992-09-15 | Mcnamara Thomas O | Nitinol stent for hollow body conduits |
US5516781A (en) * | 1992-01-09 | 1996-05-14 | American Home Products Corporation | Method of treating restenosis with rapamycin |
US5563146A (en) * | 1992-01-09 | 1996-10-08 | American Home Products Corporation | Method of treating hyperproliferative vascular disease |
US5646160A (en) * | 1992-01-09 | 1997-07-08 | American Home Products Corporation | Method of treating hyperproliferative vascular disease with rapamycin and mycophenolic acid |
US5288711A (en) * | 1992-04-28 | 1994-02-22 | American Home Products Corporation | Method of treating hyperproliferative vascular disease |
US20010027339A1 (en) * | 1997-09-24 | 2001-10-04 | Boatman Scott E. | Radially expandable stent |
US20010049547A1 (en) * | 2000-02-04 | 2001-12-06 | Moore Scott T. | Stent introducer apparatus |
US20020055767A1 (en) * | 2000-10-18 | 2002-05-09 | Forde Sean T. | Over-the-wire interlock attachment/detachment mechanism |
US20020120323A1 (en) * | 2001-02-26 | 2002-08-29 | Intratherapeutics, Inc. | Implant delivery system with interlock |
US20020193868A1 (en) * | 2001-06-14 | 2002-12-19 | Vladimir Mitelberg | Intravascular stent device |
US20020193862A1 (en) * | 2001-06-14 | 2002-12-19 | Vladimir Mitelberg | Intravascular stent device |
US20030163189A1 (en) * | 2002-02-22 | 2003-08-28 | Richard Thompson | Apparatus and method for deployment of an endoluminal device |
Cited By (81)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9801744B2 (en) | 2004-05-25 | 2017-10-31 | Covidien Lp | Methods and apparatus for luminal stenting |
US9125659B2 (en) | 2004-05-25 | 2015-09-08 | Covidien Lp | Flexible vascular occluding device |
US8617234B2 (en) | 2004-05-25 | 2013-12-31 | Covidien Lp | Flexible vascular occluding device |
US9295568B2 (en) | 2004-05-25 | 2016-03-29 | Covidien Lp | Methods and apparatus for luminal stenting |
US10765542B2 (en) | 2004-05-25 | 2020-09-08 | Covidien Lp | Methods and apparatus for luminal stenting |
US10918389B2 (en) | 2004-05-25 | 2021-02-16 | Covidien Lp | Flexible vascular occluding device |
US9050205B2 (en) | 2004-05-25 | 2015-06-09 | Covidien Lp | Methods and apparatus for luminal stenting |
US9855047B2 (en) | 2004-05-25 | 2018-01-02 | Covidien Lp | Flexible vascular occluding device |
US11771433B2 (en) | 2004-05-25 | 2023-10-03 | Covidien Lp | Flexible vascular occluding device |
US12042411B2 (en) | 2004-05-25 | 2024-07-23 | Covidien Lp | Methods and apparatus for luminal stenting |
US9393021B2 (en) | 2004-05-25 | 2016-07-19 | Covidien Lp | Flexible vascular occluding device |
US8382825B2 (en) | 2004-05-25 | 2013-02-26 | Covidien Lp | Flexible vascular occluding device |
US10004618B2 (en) | 2004-05-25 | 2018-06-26 | Covidien Lp | Methods and apparatus for luminal stenting |
US8398701B2 (en) | 2004-05-25 | 2013-03-19 | Covidien Lp | Flexible vascular occluding device |
US8628564B2 (en) | 2004-05-25 | 2014-01-14 | Covidien Lp | Methods and apparatus for luminal stenting |
US8623067B2 (en) | 2004-05-25 | 2014-01-07 | Covidien Lp | Methods and apparatus for luminal stenting |
US20060206200A1 (en) * | 2004-05-25 | 2006-09-14 | Chestnut Medical Technologies, Inc. | Flexible vascular occluding device |
US8267985B2 (en) | 2005-05-25 | 2012-09-18 | Tyco Healthcare Group Lp | System and method for delivering and deploying an occluding device within a vessel |
US9381104B2 (en) | 2005-05-25 | 2016-07-05 | Covidien Lp | System and method for delivering and deploying an occluding device within a vessel |
US9204983B2 (en) | 2005-05-25 | 2015-12-08 | Covidien Lp | System and method for delivering and deploying an occluding device within a vessel |
US10064747B2 (en) | 2005-05-25 | 2018-09-04 | Covidien Lp | System and method for delivering and deploying an occluding device within a vessel |
US10322018B2 (en) | 2005-05-25 | 2019-06-18 | Covidien Lp | System and method for delivering and deploying an occluding device within a vessel |
US8273101B2 (en) | 2005-05-25 | 2012-09-25 | Tyco Healthcare Group Lp | System and method for delivering and deploying an occluding device within a vessel |
US9198666B2 (en) | 2005-05-25 | 2015-12-01 | Covidien Lp | System and method for delivering and deploying an occluding device within a vessel |
US8147534B2 (en) | 2005-05-25 | 2012-04-03 | Tyco Healthcare Group Lp | System and method for delivering and deploying an occluding device within a vessel |
US8257421B2 (en) | 2005-05-25 | 2012-09-04 | Tyco Healthcare Group Lp | System and method for delivering and deploying an occluding device within a vessel |
US8236042B2 (en) | 2005-05-25 | 2012-08-07 | Tyco Healthcare Group Lp | System and method for delivering and deploying an occluding device within a vessel |
US9095343B2 (en) | 2005-05-25 | 2015-08-04 | Covidien Lp | System and method for delivering and deploying an occluding device within a vessel |
US8394119B2 (en) | 2006-02-22 | 2013-03-12 | Covidien Lp | Stents having radiopaque mesh |
US9610181B2 (en) | 2006-02-22 | 2017-04-04 | Covidien Lp | Stents having radiopaque mesh |
US9320590B2 (en) | 2006-02-22 | 2016-04-26 | Covidien Lp | Stents having radiopaque mesh |
US11382777B2 (en) | 2006-02-22 | 2022-07-12 | Covidien Lp | Stents having radiopaque mesh |
US10433988B2 (en) | 2006-02-22 | 2019-10-08 | Covidien Lp | Stents having radiopaque mesh |
US10123803B2 (en) | 2007-10-17 | 2018-11-13 | Covidien Lp | Methods of managing neurovascular obstructions |
US11337714B2 (en) | 2007-10-17 | 2022-05-24 | Covidien Lp | Restoring blood flow and clot removal during acute ischemic stroke |
US10413310B2 (en) | 2007-10-17 | 2019-09-17 | Covidien Lp | Restoring blood flow and clot removal during acute ischemic stroke |
US9220522B2 (en) | 2007-10-17 | 2015-12-29 | Covidien Lp | Embolus removal systems with baskets |
US8066757B2 (en) | 2007-10-17 | 2011-11-29 | Mindframe, Inc. | Blood flow restoration and thrombus management methods |
US11786254B2 (en) | 2007-10-17 | 2023-10-17 | Covidien Lp | Methods of managing neurovascular obstructions |
US9320532B2 (en) | 2007-10-17 | 2016-04-26 | Covidien Lp | Expandable tip assembly for thrombus management |
US8070791B2 (en) | 2007-10-17 | 2011-12-06 | Mindframe, Inc. | Multiple layer embolus removal |
US8585713B2 (en) | 2007-10-17 | 2013-11-19 | Covidien Lp | Expandable tip assembly for thrombus management |
US9387098B2 (en) | 2007-10-17 | 2016-07-12 | Covidien Lp | Revascularization devices |
US8945172B2 (en) | 2007-10-17 | 2015-02-03 | Covidien Lp | Devices for restoring blood flow and clot removal during acute ischemic stroke |
US10016211B2 (en) | 2007-10-17 | 2018-07-10 | Covidien Lp | Expandable tip assembly for thrombus management |
US9198687B2 (en) | 2007-10-17 | 2015-12-01 | Covidien Lp | Acute stroke revascularization/recanalization systems processes and products thereby |
US8574262B2 (en) | 2007-10-17 | 2013-11-05 | Covidien Lp | Revascularization devices |
US8197493B2 (en) | 2007-10-17 | 2012-06-12 | Mindframe, Inc. | Method for providing progressive therapy for thrombus management |
US8945143B2 (en) | 2007-10-17 | 2015-02-03 | Covidien Lp | Expandable tip assembly for thrombus management |
US10835257B2 (en) | 2007-10-17 | 2020-11-17 | Covidien Lp | Methods of managing neurovascular obstructions |
US8926680B2 (en) | 2007-11-12 | 2015-01-06 | Covidien Lp | Aneurysm neck bridging processes with revascularization systems methods and products thereby |
US8940003B2 (en) | 2008-02-22 | 2015-01-27 | Covidien Lp | Methods and apparatus for flow restoration |
US8679142B2 (en) | 2008-02-22 | 2014-03-25 | Covidien Lp | Methods and apparatus for flow restoration |
US11529156B2 (en) | 2008-02-22 | 2022-12-20 | Covidien Lp | Methods and apparatus for flow restoration |
US10456151B2 (en) | 2008-02-22 | 2019-10-29 | Covidien Lp | Methods and apparatus for flow restoration |
US9161766B2 (en) | 2008-02-22 | 2015-10-20 | Covidien Lp | Methods and apparatus for flow restoration |
US8545514B2 (en) | 2008-04-11 | 2013-10-01 | Covidien Lp | Monorail neuro-microcatheter for delivery of medical devices to treat stroke, processes and products thereby |
US9675482B2 (en) | 2008-05-13 | 2017-06-13 | Covidien Lp | Braid implant delivery systems |
US10610389B2 (en) | 2008-05-13 | 2020-04-07 | Covidien Lp | Braid implant delivery systems |
US11707371B2 (en) | 2008-05-13 | 2023-07-25 | Covidien Lp | Braid implant delivery systems |
US8088140B2 (en) | 2008-05-19 | 2012-01-03 | Mindframe, Inc. | Blood flow restorative and embolus removal methods |
US10722255B2 (en) | 2008-12-23 | 2020-07-28 | Covidien Lp | Systems and methods for removing obstructive matter from body lumens and treating vascular defects |
US8636760B2 (en) | 2009-04-20 | 2014-01-28 | Covidien Lp | System and method for delivering and deploying an occluding device within a vessel |
CN102686189A (en) * | 2009-12-28 | 2012-09-19 | 泰尔茂株式会社 | Stent delivery system |
US9877856B2 (en) | 2012-07-18 | 2018-01-30 | Covidien Lp | Methods and apparatus for luminal stenting |
US9155647B2 (en) | 2012-07-18 | 2015-10-13 | Covidien Lp | Methods and apparatus for luminal stenting |
US9114001B2 (en) | 2012-10-30 | 2015-08-25 | Covidien Lp | Systems for attaining a predetermined porosity of a vascular device |
US9301831B2 (en) | 2012-10-30 | 2016-04-05 | Covidien Lp | Methods for attaining a predetermined porosity of a vascular device |
US9907643B2 (en) | 2012-10-30 | 2018-03-06 | Covidien Lp | Systems for attaining a predetermined porosity of a vascular device |
US10952878B2 (en) | 2012-10-31 | 2021-03-23 | Covidien Lp | Methods and systems for increasing a density of a region of a vascular device |
US10206798B2 (en) | 2012-10-31 | 2019-02-19 | Covidien Lp | Methods and systems for increasing a density of a region of a vascular device |
US9452070B2 (en) | 2012-10-31 | 2016-09-27 | Covidien Lp | Methods and systems for increasing a density of a region of a vascular device |
US9943427B2 (en) | 2012-11-06 | 2018-04-17 | Covidien Lp | Shaped occluding devices and methods of using the same |
US9157174B2 (en) | 2013-02-05 | 2015-10-13 | Covidien Lp | Vascular device for aneurysm treatment and providing blood flow into a perforator vessel |
US9561122B2 (en) | 2013-02-05 | 2017-02-07 | Covidien Lp | Vascular device for aneurysm treatment and providing blood flow into a perforator vessel |
US9427345B2 (en) | 2013-04-30 | 2016-08-30 | Asahi Intecc Co., Ltd. | Pusher guide wire |
US10617544B2 (en) | 2015-09-18 | 2020-04-14 | Microvention, Inc. | Implant retention, detachment, and delivery system |
US11712355B2 (en) | 2015-09-18 | 2023-08-01 | Microvention, Inc. | Implant retention, detachment, and delivery system |
WO2017049195A1 (en) * | 2015-09-18 | 2017-03-23 | Microvention, Inc. | Implant retention, detachment, and delivery system |
CN108348323A (en) * | 2015-09-18 | 2018-07-31 | 微仙美国有限公司 | Implantation material maintenance, disengaging and delivery system |
US11253379B2 (en) | 2015-10-12 | 2022-02-22 | Reflow Medical, Inc. | Stents having protruding drug-delivery features and associated systems and methods |
Also Published As
Publication number | Publication date |
---|---|
JP4498709B2 (en) | 2010-07-07 |
US20040078071A1 (en) | 2004-04-22 |
US20040059407A1 (en) | 2004-03-25 |
JP2004267750A (en) | 2004-09-30 |
US7001422B2 (en) | 2006-02-21 |
US20060025845A1 (en) | 2006-02-02 |
US20060095213A1 (en) | 2006-05-04 |
US7309351B2 (en) | 2007-12-18 |
EP1400219A1 (en) | 2004-03-24 |
US6955685B2 (en) | 2005-10-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7001422B2 (en) | Expandable stent and delivery system | |
US6960227B2 (en) | Expandable stent and delivery system | |
US11129738B2 (en) | Self-expanding device delivery apparatus with dual function bump | |
US7655031B2 (en) | Stent delivery system with improved retraction member | |
CA2477927C (en) | Self-expanding stent and stent delivery system for treatment of vascular stenosis | |
EP1516601B1 (en) | Self-expanding stent and stent and delivery system with distal protection | |
US9089448B2 (en) | Stent delivery system with threaded engagement method | |
EP1525859B1 (en) | Self-expanding stent and stent delivery system for treatment of vascular disease | |
US7195648B2 (en) | Intravascular stent device | |
US6676693B1 (en) | Apparatus and method for delivering a self-expanding stent | |
US6833002B2 (en) | Stent delivery catheter assembly and method of use | |
US20150366690A1 (en) | Stent delivery system with anchoring guide wire and method for deploying a self-expanding stent | |
US20230233348A1 (en) | Implantable medical device detachment system with flexible braid section |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |
|
AS | Assignment |
Owner name: CODMAN & SHURTLEFF, INC., MASSACHUSETTS Free format text: MERGER;ASSIGNOR:CORDIS NEUROVASCULAR, INC.;REEL/FRAME:023032/0233 Effective date: 20081216 Owner name: CODMAN & SHURTLEFF, INC.,MASSACHUSETTS Free format text: MERGER;ASSIGNOR:CORDIS NEUROVASCULAR, INC.;REEL/FRAME:023032/0233 Effective date: 20081216 |