CN201350139Y - Coronary artery balloon expandable stent with high radial bracing force - Google Patents
Coronary artery balloon expandable stent with high radial bracing force Download PDFInfo
- Publication number
- CN201350139Y CN201350139Y CN 200920095647 CN200920095647U CN201350139Y CN 201350139 Y CN201350139 Y CN 201350139Y CN 200920095647 CN200920095647 CN 200920095647 CN 200920095647 U CN200920095647 U CN 200920095647U CN 201350139 Y CN201350139 Y CN 201350139Y
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- coronary artery
- balloon expandable
- artery balloon
- shaped
- expandable stent
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Abstract
The utility model relates to a coronary artery balloon expandable stent which adopts a mesh tubular structure (1). The mesh tubular structure (1) consists of a plurality of V-shaped waveform rings (2) and U-shaped waveform rings (3); the V-shaped waveform rings (2) and the U-shaped waveform rings (3) in each line and each row are alternately distributed in sequence; the V-shaped waveform rings (2) and the U-shaped waveform rings (3) in two adjacent rows are connected through W-shaped connecting keys (5); and the W-shaped connecting keys (5) are positioned inside the U-shaped waveform rings (3). The bottom end (4) of the V-shaped waveform ring (2) and the connecting end (6) between the V-shaped waveform ring (2) and the U-shaped waveform ring (3) adopt arc expansion, and the semi-diameters of the bottom end (4) and the connecting end (6) are enlarged. After the coronary artery balloon expandable stent is expanded in a blood vessel, the metal surface coverage rate of the coronary artery balloon expandable stent is high, the axial shortening rate is low, the axial flexibility is good, flower patterns are uniformly distributed, the radial bracing force is high, and the visibility of the stent is also improved.
Description
Technical field
This utility model relates to a kind of coronary artery balloon expandable stent, especially relates to a kind of high coronary artery balloon expandable stent of back metal surface coverage rate of expanding, and is used for cardiovascular disease such as interventional therapy coronary occlusion.
Technical background
Interventional therapeutic technique is under the guiding of medical science developing apparatus in the blood vessel, utilize the Clinics and Practices that medical apparatus and instruments carried out operations such as puncture needle, guiding sheath pipe, guiding wire, become one of state-of-the-art medical procedure of treatment full spectrum of threats human health disease now gradually.Implementing Wicresoft hinders interventional therapeutic technique and depends on Wicresoft and hinder medical apparatus and instruments, percutaneous puncture transluminal coronary angioplasty art (Percutaneous Transluminal Coronary Angioplasty wherein, PTCA) cardiac catheter is that the most representative product in the interventional medical device is hindered by Wicresoft, characteristics such as the implantation surgery of coronary artery balloon expandable stent has several big advantages, and wherein operating time is short, wound is little make it to become one of first aid means of handling the acute coronary obstruction.
Existing coronary artery balloon expandable stent form has multiple, and every kind of design all has and stresses, because just there is the contradiction of each side in the design of support itself, the compliance of passing through such as radial support power and support, be difficult to reach simultaneously optimum efficiency, can only choose reasonable, take into account two aspects.The support of being mentioned among the patent No. ZL03222825.2, its connecting key designs as shown in Figure 1, and connecting key causes supporting structure loose outside the U-shaped corrugated gasket, and the metal coverage rate is low.Can reduce of the stimulation of implantation back though reduce the metal coverage rate to lesion portion, but the hypodynamic problem of support radial support that causes simultaneously also clearly, and, the design of mentioning in the above-mentioned patent, S connecting key length is long, on the axial flexibility of support, also there is hidden danger, so current support Design still remains further to be improved.
Summary of the invention
The purpose of this utility model is to provide metal surface, a kind of expansion back coverage rate height, and axially LVFS is low, and axially compliance is good, and decorative pattern is evenly distributed, the coronary stent that radial support power is strong.
The purpose of this utility model is achieved through the following technical solutions:
A kind of coronary artery balloon expandable stent, this coronary artery balloon expandable stent is a webmaster shape structure, described webmaster shape structure is made up of a plurality of V-arrangement corrugated gaskets and U-shaped corrugated gasket structure, V-arrangement corrugated gasket and U-shaped corrugated gasket in every capable waveform and the every train wave shape are alternately arranged in regular turn, the V-arrangement corrugated gasket adopts W shape connecting key to be connected with the U-shaped corrugated gasket between adjacent two train waves, and described W connecting key is positioned at the U-shaped corrugated gasket.It is compacter as compared with the past that the W connecting key is positioned at the intra-annular design of U-shaped waveform, the metal coverage rate of support is higher, expansion back diameter is that the metal coverage rate of the support of 3.0mm can reach 18%, has improved the radial support power of support in blood vessel, the improvement that the visuality of while support also obtains.Between U-shaped and the V-arrangement corrugated gasket, connect with W shape connecting key, can improve the bending and the flexibility of support itself, the axial retraction when also giving stent open provides suitable supply, and the relaxation shrinkage after the assurance stent open is less than 5%, the uniform distribution of while W shape connecting key, form after support is launched is more even, and the relaxation shrinkage after being opened is less than 5%, simultaneously the uniform distribution of W shape connecting key, also make the form after support launches more even, stressed balance more.
Further, in this support, the link of the bottom of described V-arrangement corrugated gasket and V-arrangement corrugated gasket and U-shaped corrugated gasket adopts the arc expansion, and it is big that the radius of bottom and link becomes.Make the radius of bottom and link become big by the arc expansion, can improve the radial support power of support in blood vessel.
The width of described V-arrangement corrugated gasket and U-shaped corrugated gasket is preferably greater than the width of W shape connecting key.Such design makes connecting key easier of axial stretching, extension after launching under the effect of support at sacculus, remedies the length of axial retraction, thereby whole axial retraction rate is reduced.
In this coronary artery balloon expandable stent, described every train wave shape preferably is made of jointly three V-arrangement corrugated gaskets and three U-shaped corrugated gaskets.
This coronary artery balloon expandable stent can be formed through molten quarter of laser by the ultra-thin pipe of rustless steel, is also made by other this area conventional material, for example cochrome, titanium alloy etc.
The beneficial effects of the utility model and advantage are: described coronary artery balloon expandable stent is metal surface coverage rate height behind intravascular dilation, axially LVFS is low, and axially compliance is good, and decorative pattern is evenly distributed, radial support power is strong, the improvement that the visuality of support also obtains.
The utility model is described in further detail below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is a connecting key design drawing of the prior art;
Fig. 2 is a coronary artery balloon expandable stent developed surface enlarged drawing described in the utility model;
Fig. 3 is the coupling part enlarged drawing of V-arrangement corrugated gasket and U-shaped corrugated gasket.
The specific embodiment
Fig. 2 is an embodiment of the present utility model, as shown in the figure, described coronary artery balloon expandable stent is melted through laser by the ultra-thin pipe of rustless steel and is carved into webmaster shape structure 1, described webmaster shape structure 1 is made up of a plurality of V-arrangement corrugated gaskets 2 and U-shaped corrugated gasket 3 structures, V-arrangement corrugated gasket 2 and U-shaped corrugated gasket 3 in every capable waveform and the every train wave shape are alternately arranged in regular turn, V-arrangement corrugated gasket 2 between adjacent two train waves adopts W shape connecting key 5 to be connected with U-shaped corrugated gasket 3, and described W connecting key 5 is positioned at U-shaped corrugated gasket 3 (referring to Fig. 3).Every train wave shape is made of jointly three V-arrangement corrugated gaskets 2 and three U-shaped corrugated gaskets 3 among this embodiment.It is compacter as compared with the past that the W connecting key is positioned at the intra-annular design of U-shaped waveform, the metal coverage rate of support is higher, expansion back diameter is that the metal coverage rate of the support of 3.0mm can reach 18%, has improved the radial support power of support in blood vessel, the improvement that the visuality of while support also obtains.Between U-shaped and the V-arrangement corrugated gasket, connect with W shape connecting key, can improve the bending and the flexibility of support itself, axial retraction when also giving stent open provides suitable supply, relaxation shrinkage after the assurance stent open is less than 5%, the uniform distribution of W shape connecting key also makes the form after support launches more even, stressed balance more simultaneously.The link 6 of the bottom 4 of described V-arrangement corrugated gasket 2 and V-arrangement corrugated gasket 2 and U-shaped corrugated gasket 3 all adopts the arc expansion, and it is big that the radius of bottom 4 and link 6 becomes.Make the radius of bottom 4 and link 6 become big by the arc expansion, can improve the radial support power of support in blood vessel.The width D 1 of described V-arrangement corrugated gasket 2 and U-shaped corrugated gasket 3 is greater than the width d1 of W shape connecting key 5, such design makes connecting key easier of axial stretching, extension after launching under the effect of support at sacculus, remedy the length of axial retraction, thereby whole axial retraction rate is reduced.
This coronary artery balloon expandable stent is also made by other this area conventional material, for example cochrome, titanium alloy etc.
Claims (8)
1. coronary artery balloon expandable stent, this coronary artery balloon expandable stent is a webmaster shape structure (1), described webmaster shape structure (1) is made up of a plurality of V-arrangement corrugated gaskets (2) and U-shaped corrugated gasket (3) structure, V-arrangement corrugated gasket (2) and U-shaped corrugated gasket (3) in every capable waveform and the every train wave shape are alternately arranged in regular turn, V-arrangement corrugated gasket (2) between adjacent two train waves adopts W shape connecting key (5) to be connected with U-shaped corrugated gasket (3), it is characterized in that described W connecting key (5) is positioned at U-shaped corrugated gasket (3).
2. the described coronary artery balloon expandable stent of claim 1, it is characterized in that, the link (6) of the bottom (4) of described V-arrangement corrugated gasket (2) and V-arrangement corrugated gasket (2) and U-shaped corrugated gasket (3) adopts the arc expansion, and it is big that the radius of bottom (4) and link (6) becomes.
3. claim 1 or 2 described coronary artery balloon expandable stents is characterized in that, the width (D1) of V-arrangement corrugated gasket (2) and U-shaped corrugated gasket (3) is greater than the width (d1) of W shape connecting key (5).
4. claim 1 or 2 described coronary artery balloon expandable stents is characterized in that, described webmaster shape structure is melted through laser by the ultra-thin pipe of rustless steel and is carved into.
5. the described coronary artery balloon expandable stent of claim 3 is characterized in that, described webmaster shape structure is melted through laser by the ultra-thin pipe of rustless steel and is carved into.
6. claim 1,2 or 5 described coronary artery balloon expandable stents is characterized in that, described every train wave shape preferably is made of jointly three V-arrangement corrugated gaskets and three U-shaped corrugated gaskets.
7. the described coronary artery balloon expandable stent of claim 3 is characterized in that, described every train wave shape preferably is made of jointly three V-arrangement corrugated gaskets and three U-shaped corrugated gaskets.
8. the described coronary artery balloon expandable stent of claim 4 is characterized in that, described every train wave shape preferably is made of jointly three V-arrangement corrugated gaskets and three U-shaped corrugated gaskets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920095647 CN201350139Y (en) | 2009-02-25 | 2009-02-25 | Coronary artery balloon expandable stent with high radial bracing force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920095647 CN201350139Y (en) | 2009-02-25 | 2009-02-25 | Coronary artery balloon expandable stent with high radial bracing force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201350139Y true CN201350139Y (en) | 2009-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920095647 Expired - Lifetime CN201350139Y (en) | 2009-02-25 | 2009-02-25 | Coronary artery balloon expandable stent with high radial bracing force |
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| CN (1) | CN201350139Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102028530A (en) * | 2010-12-20 | 2011-04-27 | 南京市第一医院 | Minimally invasive bone trabecula metal vertebral stent |
| CN110464519A (en) * | 2019-08-30 | 2019-11-19 | 乐普（北京）医疗器械股份有限公司 | A kind of balloon-stent |
| CN110785146A (en) * | 2017-07-19 | 2020-02-11 | 雅培心血管系统公司 | Intravascular stent |
-
2009
- 2009-02-25 CN CN 200920095647 patent/CN201350139Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102028530A (en) * | 2010-12-20 | 2011-04-27 | 南京市第一医院 | Minimally invasive bone trabecula metal vertebral stent |
| CN110785146A (en) * | 2017-07-19 | 2020-02-11 | 雅培心血管系统公司 | Intravascular stent |
| CN110464519A (en) * | 2019-08-30 | 2019-11-19 | 乐普（北京）医疗器械股份有限公司 | A kind of balloon-stent |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 300457 the 2 layer of B area, TEDA biological medicine research and development building 5, Fourth Avenue, Tianjin development zone. Patentee after: Sano medical science and technology Limited by Share Ltd Address before: 300457 the 2 layer of B area, TEDA biological medicine research and development building 5, Fourth Avenue, Tianjin development zone. Patentee before: Sainuo Medical Sicience and Technology Co,. Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091125 |
|
| CX01 | Expiry of patent term |