CN108498218A - Intravascular stent - Google Patents
Intravascular stent Download PDFInfo
- Publication number
- CN108498218A CN108498218A CN201810441054.XA CN201810441054A CN108498218A CN 108498218 A CN108498218 A CN 108498218A CN 201810441054 A CN201810441054 A CN 201810441054A CN 108498218 A CN108498218 A CN 108498218A
- Authority
- CN
- China
- Prior art keywords
- arm
- supporter
- intravascular stent
- interconnecting piece
- vertical arm
- 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.)
- Pending
Links
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
- 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
- A61F2/82—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
- A61F2002/91575—Adjacent bands being connected to each other connected peak to trough
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Optics & Photonics (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Physics & Mathematics (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 provides a kind of intravascular stent, including multiple supporters along the arrangement of intravascular stent axial direction, the supporter is wavy annular structure, adjacent supporter is connected by interconnecting piece, the supporter includes multiple wave crest and trough being alternately present, and the supporter is equipped with 8 wave crests, and the interconnecting piece includes 2 connecting rods, wave crest is corresponding with wave crest between adjacent supporter, and trough is corresponding with trough.The beneficial effects of the invention are as follows by adopting the above scheme, intravascular stent has good compliance and even inflation performance.
Description
Technical field
The present invention relates to blood vessel intervention medical field more particularly to a kind of intravascular stents.
Background technology
Intravascular stent is the important means of current treatment hemadostewnosis class disease, in the performance indicator of holder, holder
Submissive performance all plays a crucial role clinical effectiveness after surgical procedure and operation.Studies have shown that conventional metals branch
It will be remained in as permanent foreign matter after frame implantation in patient body, from long-term biocompatibility angle analysis, holder is as internal
The ability of moving synchronously of foreign matter and blood vessel is one of the key factor of therapeutic effect after determining stenter to implant.If holder and blood vessel
Move synchronously that ability is poor, then reangiostenosis forms the probability that the sequelae such as thrombus occur and increases therewith.
The factor of holder compliance is influenced other than timbering material, and the structure of holder also has weight for the compliance of holder
The influence wanted, by also needing to take into account the radial support performance of holder while high-flexibility of the structure to obtain holder and subtracting
The probability that few " dog-bone " non-homogeneous expansion status occurs.
Invention content
The object of the present invention is to provide a kind of intravascular stents, have good compliance and even inflation performance.
The technical scheme is that：
A kind of intravascular stent, including multiple supporters along the arrangement of intravascular stent axial direction, the supporter are waveform
Cyclic structure, adjacent supporter are connected by interconnecting piece, and the supporter includes multiple wave crests and trough being alternately present, institute
It states supporter and is equipped with 8 wave crests, the interconnecting piece includes 2 connecting rods, and wave crest is corresponding with wave crest between adjacent supporter,
Trough is corresponding with trough.The quantity of connecting rod is of great significance for the compliance of intravascular stent in interconnecting piece, connecting rod
Quantity need to take into account the uniformity of connecting rod distribution to ensure the uniformity of intravascular stent expansion.8 wave crests and 2 connections
The good compliance for having taken into account intravascular stent of setting and even inflation performance of bar.
Spacing between 2 connecting rods of same interconnecting piece is matched with the diameter of intravascular stent, 2 of same interconnecting piece
Shaft section where 2 connecting rods of the shaft section interconnecting piece adjacent thereto where connecting rod is mutually perpendicular to.Adjacent connection
Connecting rod is arranged symmetrically between portion, further improves the even inflation performance of intravascular stent entirety.
The connecting rod includes the first transverse arm, the second transverse arm and U-shaped arm, and first transverse arm and the second transverse arm are located at same
Straight line, U-shaped arm include that first the second vertical arm of vertical arm and base arm, the first vertical arm are connected with the first transverse arm, the second vertical arm and second
Transverse arm is connected, and the first vertical arm is connected with the second vertical arm by base arm.
The length ratio of first vertical arm and the second vertical arm is 3:2-2:1, the length ratio of preferred first vertical arm and the second vertical arm
It is 2:1.Connecting rod in the present invention uses irregular U-shaped structure, U-shaped arm to use the setting of a long-armed galianconism, can expand U
The opening spacing of shape arm, to improve the compliance of intravascular stent.
The invention has the advantages and positive effects that：Due to the adoption of the above technical scheme, intravascular stent can be effectively improved
Compliance and even inflation performance.
Description of the drawings
Fig. 1 is the structural schematic diagram of intravascular stent expansion of the present invention
Fig. 2 is the schematic diagram of connecting rod of the present invention
In figure：
1, supporter 2, connecting rod 21, the first transverse arm
22, the second transverse arm 23, the first vertical arm 24, base arm
25, the second vertical arm
Specific implementation mode
As shown in Figure 1, a kind of intravascular stent of the present invention, including multiple supporters along the arrangement of intravascular stent axial direction,
The supporter is wavy annular structure, and adjacent supporter is connected by interconnecting piece, and the supporter includes that multiple alternatings go out
Existing wave crest and trough, the supporter are equipped with 8 wave crests, and the interconnecting piece includes 2 connecting rods, between adjacent supporter
Wave crest is corresponding with wave crest, and trough is corresponding with trough.
Spacing between 2 connecting rods of same interconnecting piece is matched with the diameter of intravascular stent, 2 of same interconnecting piece
Shaft section where 2 connecting rods of the shaft section interconnecting piece adjacent thereto where connecting rod is mutually perpendicular to.
As shown in Fig. 2, the connecting rod includes the first transverse arm, the second transverse arm and U-shaped arm, first transverse arm and the second cross
Arm is located at same straight line, and U-shaped arm includes that first the second vertical arm of vertical arm and base arm, the first vertical arm are connected with the first transverse arm, and second
Vertical arm is connected with the second transverse arm, and the first vertical arm is connected with the second vertical arm by base arm.
The length ratio of first vertical arm and the second vertical arm is 2:1.
Embodiment 1：
The intravascular stent, including multiple supporters along the arrangement of intravascular stent axial direction, the supporter are waveform
Cyclic structure, adjacent supporter are connected by interconnecting piece, and the supporter includes multiple wave crests and trough being alternately present, institute
It states supporter and is equipped with 8 wave crests, the interconnecting piece includes 2 connecting rods, and wave crest is corresponding with wave crest between adjacent supporter,
Trough is corresponding with trough.
Spacing between 2 connecting rods of same interconnecting piece is matched with the diameter of intravascular stent, 2 of same interconnecting piece
Shaft section where 2 connecting rods of the shaft section interconnecting piece adjacent thereto where connecting rod is mutually perpendicular to.
The connecting rod includes the first transverse arm, the second transverse arm and U-shaped arm, and first transverse arm and the second transverse arm are located at same
Straight line, U-shaped arm include that first the second vertical arm of vertical arm and base arm, the first vertical arm are connected with the first transverse arm, the second vertical arm and second
Transverse arm is connected, and the first vertical arm is connected with the second vertical arm by base arm.
The length ratio of first vertical arm and the second vertical arm is 2:1.
By contrast test, it is submissive to intravascular stent that supporter quantity, connecting rod quantity and connection rod-shape are tested respectively
The influence of property, test result are as follows：
1.
| Supporter quantity | Connecting rod quantity | Connect rod-shape | Bending property is tested |
| 8 | 2 | S-shaped | 0.18N |
| 8 | 2 | Straight | 0.13N |
| 8 | 2 | U-shaped | 0.10N |
2.
| Supporter quantity | Connecting rod quantity | Connect rod-shape | Bending property is tested |
| 9 | 2 | U-shaped | 0.15N |
| 8 | 2 | U-shaped | 0.10N |
3.
| Supporter quantity | Connecting rod quantity | Connect rod-shape | Bending property is tested |
| 8 | 3 | U-shaped | 0.16N |
| 8 | 2 | U-shaped | 0.10N |
4.
| U-shaped arm openings of sizes | Bending property |
| 50um | 0.14N |
| 80um | 0.12N |
| 110um | 0.09N |
| 140um | 0.09N |
Intravascular stent uses 8 supporters, 2 U-shaped connecting rods, and compliance is optimal, passes through the non-etc. of two arms of U-shaped arm
Long setting, increases the openings of sizes of U-shaped arm, can also increase the compliance of intravascular stent.In addition, the arranged symmetrically of connecting rod also protects
The uniformity of intravascular stent expansion is demonstrate,proved.
One embodiment of the present invention has been described in detail above, but the content be only the present invention preferable implementation
Example should not be construed as limiting the practical range of the present invention.It is all according to all the changes and improvements made by the present patent application range
Deng should all still fall within the scope of the patent of the present invention.
Claims (4)
1. a kind of intravascular stent, including multiple supporters along the arrangement of intravascular stent axial direction, the supporter is corrugated gasket
Shape structure, adjacent supporter are connected by interconnecting piece, it is characterised in that：The supporter includes multiple wave crests being alternately present
And trough, the supporter are equipped with 8 wave crests, the interconnecting piece includes 2 connecting rods, wave crest and wave between adjacent supporter
Peak is corresponding, and trough is corresponding with trough.
2. intravascular stent according to claim 1, it is characterised in that：Spacing between 2 connecting rods of same interconnecting piece
It is matched with the diameter of intravascular stent, 2 of the shaft section interconnecting piece adjacent thereto where 2 connecting rods of same interconnecting piece
Shaft section where connecting rod is mutually perpendicular to.
3. intravascular stent according to claim 2, it is characterised in that：The connecting rod includes the first transverse arm, the second transverse arm
And U-shaped arm, first transverse arm and the second transverse arm are located at same straight line, U-shaped arm includes first the second vertical arm of vertical arm and base arm,
First vertical arm is connected with the first transverse arm, and the second vertical arm is connected with the second transverse arm, and the first vertical arm is connected with the second vertical arm by base arm.
4. intravascular stent according to claim 3, it is characterised in that：The length ratio of first vertical arm and the second vertical arm is 3:2-
2:1。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810441054.XA CN108498218A (en) | 2018-05-10 | 2018-05-10 | Intravascular stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810441054.XA CN108498218A (en) | 2018-05-10 | 2018-05-10 | Intravascular stent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108498218A true CN108498218A (en) | 2018-09-07 |
Family
ID=63400338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810441054.XA Pending CN108498218A (en) | 2018-05-10 | 2018-05-10 | Intravascular stent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108498218A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112353535A (en) * | 2020-11-09 | 2021-02-12 | 首都医科大学附属北京天坛医院 | Self-expanding support suitable for intracranial venous sinus and conveying system thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101184449A (en) * | 2005-07-15 | 2008-05-21 | 标准科学技术株式会社 | Stent and method for manufacturing the same |
| US20110190871A1 (en) * | 2010-01-30 | 2011-08-04 | Abbott Cardiovascular Systems Inc. | Crush Recoverable Polymer Scaffolds |
| CN204106265U (en) * | 2014-08-12 | 2015-01-21 | 孙燕 | A kind of semi open model intravascular stent |
| CN204411036U (en) * | 2014-12-23 | 2015-06-24 | 深圳市金瑞凯利生物科技有限公司 | Intravascular stent |
-
2018
- 2018-05-10 CN CN201810441054.XA patent/CN108498218A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101184449A (en) * | 2005-07-15 | 2008-05-21 | 标准科学技术株式会社 | Stent and method for manufacturing the same |
| CN101184449B (en) * | 2005-07-15 | 2010-06-16 | 标准科学技术株式会社 | Stent and method for manufacturing the same |
| US20110190871A1 (en) * | 2010-01-30 | 2011-08-04 | Abbott Cardiovascular Systems Inc. | Crush Recoverable Polymer Scaffolds |
| CN204106265U (en) * | 2014-08-12 | 2015-01-21 | 孙燕 | A kind of semi open model intravascular stent |
| CN204411036U (en) * | 2014-12-23 | 2015-06-24 | 深圳市金瑞凯利生物科技有限公司 | Intravascular stent |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112353535A (en) * | 2020-11-09 | 2021-02-12 | 首都医科大学附属北京天坛医院 | Self-expanding support suitable for intracranial venous sinus and conveying system thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180907 |
|
| RJ01 | Rejection of invention patent application after publication |