CN108553206A - Intravascular stent and blood vessel coating bracket - Google Patents
Intravascular stent and blood vessel coating bracket Download PDFInfo
- Publication number
- CN108553206A CN108553206A CN201810464208.7A CN201810464208A CN108553206A CN 108553206 A CN108553206 A CN 108553206A CN 201810464208 A CN201810464208 A CN 201810464208A CN 108553206 A CN108553206 A CN 108553206A
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- Prior art keywords
- sub
- stent
- stent portion
- intravascular
- main support
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- 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
-
- 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
-
- 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
- A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2210/0014—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof using shape memory or superelastic materials, e.g. nitinol
-
- 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
- A61F2250/0067—Means for introducing or releasing pharmaceutical products into the body
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The present invention relates to the field of medical instrument technology more particularly to a kind of intravascular stents and blood vessel coating bracket.The intravascular stent includes main support portion, the first sub-stent portion and the second sub-stent portion；The first end in first sub-stent portion and the first end in second sub-stent portion are connected to the same end in the main support portion respectively；The corresponding second end in first sub-stent portion is wedge shaped or inclined-plane, and/or, the corresponding second end in second sub-stent portion is wedge shaped or inclined-plane.The blood vessel coating bracket includes the intravascular stent；It is coated with medication coat outside the intravascular stent.The purpose of the present invention is to provide intravascular stent and blood vessel coating brackets, to solve the technical problem existing in the prior art for needing two holders to be sent into bifurcated lesions blood vessel and surgical procedure complexity.
Description
Technical field
The present invention relates to the field of medical instrument technology more particularly to a kind of intravascular stents and blood vessel coating bracket.
Background technology
Intravascular stent refers to that it is narrow to reach support to be placed in inner support in lesion on the basis of tube chamber balloon expandable shapes
Narrow occlusion section blood vessel reduces blood vessel elasticity retraction and moulding again, the purpose for keeping tube chamber blood flow unobstructed.Part inner support also has
The effect of pre- anti-restenosis.
It is not only to be confined at one, but be located at blood vessel in actual clinic, at the hemadostewnosis of many patients
Many places.A kind of common many places arteriarctia is exactly bifurcated lesions blood vessel.2 holders are distinguished using Crash technologies at present
It is sent into main blood vessel and branch vessel；Such as be sent into main blood vessel main support and be sent into branch vessel branch stent arrive simultaneously
Position, branch stent is discharged in advance, discharges main support after withdrawing from the sacculus and seal wire of branch stent, last seal wire passes through holder net
Hole carries out sacculus to kiss technology after entering branch.
However the Crash technical operations are complicated, increase the risk of operation.
Therefore, the application provides a kind of new intravascular stent and blood vessel coating bracket regarding to the issue above, existing with simplification
It is sent into the structure of two holders of bifurcated lesions blood vessel, and surgical operation step can be simplified.
Invention content
The purpose of the present invention is to provide intravascular stents, to solve two holders feedings point of needs existing in the prior art
Pitch the technical problem of lesion vessels and surgical procedure complexity.
The present invention also aims to provide blood vessel coating bracket, to solve two holders of needs existing in the prior art
It is sent into the technical problem of bifurcated lesions blood vessel and surgical procedure complexity.
Based on above-mentioned first purpose, intravascular stent provided by the invention, including main support portion, the first sub-stent portion and second
Sub-stent portion；
The first end in first sub-stent portion and the first end in second sub-stent portion respectively with the main support portion
The same end connection；
The corresponding second end in first sub-stent portion is wedge shaped or inclined-plane, and/or, second sub-stent portion is corresponding
Second end is wedge shaped or inclined-plane.
The preferred technical solution of the present invention is, the second end in first sub-stent portion is provided with metal marker object, and/
Or, the second end in second sub-stent portion is provided with metal marker object.
The preferred technical solution of the present invention is that the quantity of the metal marker object is multiple.
The preferred technical solution of the present invention is the main support portion, first sub-stent portion and second sub-stent
Portion includes multiple cell rings and connector；
It is connected by connector between the adjacent cell rings；
Axial direction of multiple cell rings along the main support portion, first sub-stent portion or second sub-stent portion
Arrangement.
The preferred technical solution of the present invention is, the cell rings in first sub-stent portion and second sub-stent portion it is close
Density of the degree more than the cell rings in the main support portion.
The preferred technical solution of the present invention is the main support portion, first sub-stent portion and second sub-stent
Portion includes set film layer；
The set film layer housing is in the outside of multiple cell rings；
The material of the set film layer is medical macromolecular materials；
The material of the cell rings be niti-shaped memorial alloy, NiTi superelastic alloy, cobalt chromium dynamax or
316L medical stainless steel alloys.
The preferred technical solution of the present invention is a diameter of 6mm-10mm in the main support portion；
A diameter of 4mm-5mm in first sub-stent portion；
A diameter of 4mm-6mm in second sub-stent portion.
The preferred technical solution of the present invention is that the length in first sub-stent portion is longer than the length in second sub-stent portion
Degree.
The preferred technical solution of the present invention is that the thickness of the tube wall in the main support portion is different along the axial direction of itself；
The thickness of the tube wall in first sub-stent portion is different along the axial direction of itself, and/or, second sub-stent
The thickness of the tube wall in portion is different along the axial direction of itself.
Based on above-mentioned second purpose, blood vessel coating bracket provided by the invention, including the intravascular stent；
It is coated with medication coat outside the intravascular stent.
Beneficial effects of the present invention：
Intravascular stent provided by the invention, including main support portion, the first sub-stent portion and the second sub-stent portion namely blood vessel
Holder is branch type, and to be adapted with bifurcated lesions shape of blood vessel, bifurcated lesions blood can be sent directly by the intravascular stent
In pipe, without 2 holders are respectively fed in main blood vessel and branch vessel, surgical operation step can be simplified.Pass through
The wedge shaped either inclined-plane of the first corresponding second end in sub-stent portion and/or the second corresponding second end in sub-stent portion it is wedge shaped or
Inclined-plane, in order to which the first sub-stent portion and/or the second sub-stent portion to be sent into preset bifurcated vessels, to reduce the difficulty of operation
Degree, reduces the risk of operation.To sum up, the intravascular stent structure is relatively easy, can simplify surgical operation step.
Blood vessel coating bracket provided by the invention, including intravascular stent, with intravascular stent structure it is relatively easy, can
The advantages that simplifying surgical operation step.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is the first structure schematic diagram for the intravascular stent that the embodiment of the present invention one provides；
Fig. 2 is the second structural schematic diagram of the intravascular stent that the embodiment of the present invention one provides；
Fig. 3 is the third structural schematic diagram for the intravascular stent that the embodiment of the present invention one provides；
Fig. 4 is the 4th structural schematic diagram of the intravascular stent that the embodiment of the present invention one provides.
Icon：110- main supports portion；The first sub-stents of 120- portion；The second sub-stents of 130- portion；140- metal marker objects；
150- cell rings；160- connectors.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
The every other embodiment that personnel are obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for description purposes only, and is not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Embodiment one
Shown in Fig. 1-Fig. 4, a kind of intravascular stent is present embodiments provided；Fig. 1-Fig. 4 is blood provided in this embodiment
The first structure schematic diagram of pipe holder is to the 4th structure schematic diagram.
Shown in Fig. 1-Fig. 4, intravascular stent provided in this embodiment is suitable for bifurcated lesions blood vessel, is particularly suitable for
The bifurcated vessels of femoral artery,common, femoral profound artery, femoral artery,superficial.
The intravascular stent includes main support portion 110, the first sub-stent portion 120 and the second sub-stent portion 130.
The first end in the first sub-stent portion 120 and the first end in the second sub-stent portion 130 are same with main support portion 110 respectively
One end is connected to.
First sub-stent portion, 120 corresponding second end is wedge shaped or inclined-plane, and/or, the second sub-stent portion 130 is corresponding
Second end is wedge shaped or inclined-plane.That is, 120 corresponding second end of the first sub-stent portion is wedge shaped or inclined-plane；Alternatively,
Second sub-stent portion, 130 corresponding second end is wedge shaped or inclined-plane；Alternatively, 120 corresponding second end of the first sub-stent portion is in
Wedge shape either inclined-plane and 130 corresponding second end of the second sub-stent portion is wedge shaped or inclined-plane.Fig. 1 and Fig. 3 show first
The second end in sub-stent portion 120 is wedge shaped, and the second end in the second sub-stent portion 130 is wedge shaped；Fig. 2 show the first sub-stent portion
120 second end is in inclined-plane, and the second end in the second sub-stent portion 130 is in inclined-plane.
Optionally, the angle of inclined-plane and the axial direction in the first sub-stent portion 120 is between 0~90 degree, alternatively, inclined-plane with
The angle of the axial direction in the second sub-stent portion 130 is between 0~90 degree.Preferably, the axis on inclined-plane and the first sub-stent portion 120
It it is 45 degree to the angle in direction, alternatively, the angle of inclined-plane and the axial direction in the second sub-stent portion 130 is 45 degree.
Intravascular stent described in the present embodiment includes main support portion 110, the first sub-stent portion 120 and the second sub-stent portion
130 namely intravascular stent be branch type, with bifurcated lesions shape of blood vessel be adapted, can directly be sent by the intravascular stent
It is intravascular to enter bifurcated lesions, without 2 holders are respectively fed to main blood vessel with branch vessel, is grasped so that operation can be simplified
Make step.By 120 corresponding second end of the first sub-stent portion is wedge shaped or inclined-plane and/or the second sub-stent portion 130 it is corresponding
Second end is wedge shaped or inclined-plane, it is preset in order to which the first sub-stent portion 120 and/or the second sub-stent portion 130 to be sent into
In bifurcated vessels, to reduce the difficulty of operation, the risk of operation is reduced.To sum up, the intravascular stent structure is relatively easy, Neng Goujian
Change surgical operation step.
Shown in Figure 3, in the alternative of the present embodiment, the second end in the first sub-stent portion 120 is provided with metal mark
Remember object 140, and/or, the second end in the second sub-stent portion 130 is provided with metal marker object 140.That is, the first sub-stent
The second end in portion 120 is provided with metal marker object 140；Alternatively, the second end in the second sub-stent portion 130 is provided with metal marker object
140；Alternatively, the second end in the first sub-stent portion 120 is provided with the second of metal marker object 140 and the second sub-stent portion 130
End is provided with metal marker object 140.Preferably, the second end in the first sub-stent portion 120 is provided with metal marker object 140, and
The second end in the second sub-stent portion 130 is provided with metal marker object 140, comes in order to which metal marker object 140 develops under X-ray
The specific location for identifying the second end in the first sub-stent portion 120, the second end in the second sub-stent portion 130, in order to discharge blood vessel
Holder, so that intravascular stent can more accurately be discharged into the predeterminated position of lesion vessels.
In the alternative of the present embodiment, the quantity of metal marker object 140 is multiple.
Optionally, the second end in the first sub-stent portion 120 uniformly distributed has multiple metal marker objects along the circumferential direction of itself
140.The second end in the first sub-stent portion 120 for example can be with along the quantity of the uniformly distributed metal marker object 140 of the circumferential direction of itself
It is 2,3,4,6 etc..
Optionally, the second end in the second sub-stent portion 130 uniformly distributed has multiple metal marker objects along the circumferential direction of itself
140.The second end in the second sub-stent portion 130 for example can be with along the quantity of the uniformly distributed metal marker object 140 of the circumferential direction of itself
It is 2,3,4,6 etc..
Optionally, the junction in the first sub-stent portion 120 and the second sub-stent portion 130 and main support portion 110 is provided with gold
Belong to marker 140, in order to discharge intravascular stent, so that intravascular stent can more accurately be discharged into the default of lesion vessels
Position.
Optionally, the one end of main support portion 110 far from the first sub-stent portion 120 is provided with metal marker object 140.
In the alternative of the present embodiment, main support portion 110, the first sub-stent portion 120 and the second sub-stent portion 130 are wrapped
Include multiple cell rings 150 and connector 160.
It is connected by connector 160 between adjacent cells ring 150.
Axial direction row of the multiple cell rings 150 along main support portion 110, the first sub-stent portion 120 or the second sub-stent portion 130
Row.Optionally, cell rings 150 are made of medical alloy material；Further, cell rings 150 be by medical alloy material into
Row bending is formed by Z-shaped configuration or braiding structure.
Optionally, the material of cell rings 150 is niti-shaped memorial alloy, NiTi superelastic alloy, cobalt chromium dynamax
Or 316L medical stainless steel alloys；It will be appreciated by persons skilled in the art that cell rings 150 can also use other materials
Material.Wherein, 316L medical stainless steels alloy is the most frequently used in the medical surgery and maximum implantable metal material of usage amount, usually
It is made of vacuum metling, corrosion resistance is preferable；Niti-shaped memorial alloy has stronger wear-resisting, corrosion resistance, tissue
Compatibility is good, and long-term merging has no toxic side effect in vivo, can substantially reduce thrombosis to a certain extent.
In the alternative of the present embodiment, the cell rings 150 in the first sub-stent portion 120 and the second sub-stent portion 130 it is close
Density of the degree more than the cell rings 150 in main support portion 110；In order to which the first sub-stent portion 120 and the second sub-stent portion 130 is defeated
It send to preset lesion locations.
In the alternative of the present embodiment, main support portion 110, the first sub-stent portion 120 and the second sub-stent portion 130 are wrapped
Include set film layer (not shown).
Film layer housing is covered in the outside of multiple cell rings 150.
The material for covering film layer is medical macromolecular materials；Optionally, medical macromolecular materials for example can be that polyamide is spun
Fabric, polypropylene spun fabric, polyester woven object, polytetrafluoroethylene (PTFE) etc..
In the alternative of the present embodiment, a diameter of 6mm-10mm in main support portion 110.
Optionally, a diameter of 4mm-5mm in the first sub-stent portion 120.
Optionally, a diameter of 4mm-6mm in the second sub-stent portion 130.
In the alternative of the present embodiment, the length in the first sub-stent portion 120 is longer than the length in the second sub-stent portion 130.
In the alternative of the present embodiment, the thickness of the tube wall in main support portion 110 is different along the axial direction of itself；So that
The larger position of pipe thickness ensure that intravascular stent has higher support strength and good development effect, to be placed in blood vessel
Holder provides good guarantee；At the smaller position of pipe thickness, compression strength is low, can improve the soft of intravascular stent
It is pliable, it can be good at complying with the shape of blood vessel after intravascular stent expansion.
Optionally, the thickness of the tube wall in main support portion 110 along the axial direction of itself in regularity variation.
Optionally, the thickness of the tube wall in the first sub-stent portion 120 is different along the axial direction of itself.Optionally, first point
The thickness of the tube wall of cradle portion 120 is along the axial direction of itself in the variation of regularity.
Optionally, the thickness of the tube wall in the second sub-stent portion 130 is different along the axial direction of itself.Optionally, second point
The thickness of the tube wall of cradle portion 130 is along the axial direction of itself in the variation of regularity.
In order to more be apparent from the present embodiment, citing illustrates.Such as main support portion 110 is total for being placed on stock
At artery, the first sub-stent portion 120 is for being placed at femoral profound artery, and the second sub-stent portion 130 is for being placed on femoral artery,superficial
Place.The length in the first sub-stent portion 120 is longer than the length in the second sub-stent portion 130；The diameter in the first sub-stent portion 120 be less than or
Person is equal to the diameter in the second sub-stent portion 130.
Embodiment two
Embodiment two provides a kind of blood vessel coating bracket, which includes the intravascular stent described in embodiment one, real
The technical characteristic for applying the intravascular stent disclosed in example one is also applied for the embodiment, the skill of one published intravascular stent of embodiment
Art feature is not repeated to describe.
Blood vessel coating bracket provided in this embodiment is suitable for bifurcated lesions blood vessel, and it is deep to be particularly suitable for femoral artery,common, stock
The bifurcated vessels of artery, femoral artery,superficial.
The blood vessel coating bracket includes intravascular stent；It is coated with medication coat outside intravascular stent.By medication coat, so that
Intravascular stent has specific therapeutic effect.
Blood vessel coating bracket described in the present embodiment has the advantages that intravascular stent described in embodiment one, one institute of embodiment are public
The advantages of intravascular stent opened, is not repeated to describe herein.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of intravascular stent, which is characterized in that including main support portion, the first sub-stent portion and the second sub-stent portion；
The first end in first sub-stent portion and the first end in second sub-stent portion are same with the main support portion respectively
One end is connected to；
The corresponding second end in first sub-stent portion is wedge shaped or inclined-plane, and/or, second sub-stent portion corresponding
Two ends are wedge shaped or inclined-plane.
2. intravascular stent according to claim 1, which is characterized in that the second end in first sub-stent portion is provided with gold
Belong to marker, and/or, the second end in second sub-stent portion is provided with metal marker object.
3. intravascular stent according to claim 2, which is characterized in that the quantity of the metal marker object is multiple.
4. intravascular stent according to claim 1, which is characterized in that the main support portion, first sub-stent portion and
Second sub-stent portion includes multiple cell rings and connector；
It is connected by connector between the adjacent cell rings；
Axial direction row of multiple cell rings along the main support portion, first sub-stent portion or second sub-stent portion
Row.
5. intravascular stent according to claim 4, which is characterized in that first sub-stent portion and second sub-stent
The density of the cell rings in portion is more than the density of the cell rings in the main support portion.
6. intravascular stent according to claim 4, which is characterized in that the main support portion, first sub-stent portion and
Second sub-stent portion includes set film layer；
The set film layer housing is in the outside of multiple cell rings；
The material of the set film layer is medical macromolecular materials；
The material of the cell rings is niti-shaped memorial alloy, NiTi superelastic alloy, cobalt chromium dynamax or 316L doctors
Use stainless steel alloy.
7. according to claim 1-6 any one of them intravascular stents, which is characterized in that a diameter of 6mm- in the main support portion
10mm；
A diameter of 4mm-5mm in first sub-stent portion；
A diameter of 4mm-6mm in second sub-stent portion.
8. according to claim 1-6 any one of them intravascular stents, which is characterized in that the length in first sub-stent portion is long
Length in second sub-stent portion.
9. according to claim 1-6 any one of them intravascular stents, which is characterized in that the thickness of the tube wall in the main support portion
It is different along the axial direction of itself；
The thickness of the tube wall in first sub-stent portion is different along the axial direction of itself, and/or, second sub-stent portion
The thickness of tube wall is different along the axial direction of itself.
10. a kind of blood vessel coating bracket, which is characterized in that including claim 1-9 any one of them intravascular stents；
It is coated with medication coat outside the intravascular stent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810464208.7A CN108553206A (en) | 2018-05-15 | 2018-05-15 | Intravascular stent and blood vessel coating bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810464208.7A CN108553206A (en) | 2018-05-15 | 2018-05-15 | Intravascular stent and blood vessel coating bracket |
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| Publication Number | Publication Date |
|---|---|
| CN108553206A true CN108553206A (en) | 2018-09-21 |
Family
ID=63538936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810464208.7A Pending CN108553206A (en) | 2018-05-15 | 2018-05-15 | Intravascular stent and blood vessel coating bracket |
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| CN (1) | CN108553206A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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