CN201157423Y - Blood vessel stent - Google Patents
Blood vessel stent Download PDFInfo
- Publication number
- CN201157423Y CN201157423Y CNU2008200790594U CN200820079059U CN201157423Y CN 201157423 Y CN201157423 Y CN 201157423Y CN U2008200790594 U CNU2008200790594 U CN U2008200790594U CN 200820079059 U CN200820079059 U CN 200820079059U CN 201157423 Y CN201157423 Y CN 201157423Y
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- China
- Prior art keywords
- section
- supporting
- sections
- intravascular stent
- crest
- 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.)
- Expired - Fee Related
Links
- 210000004204 blood vessel Anatomy 0.000 title abstract description 9
- 239000003814 drug Substances 0.000 claims abstract description 12
- 229940079593 drug Drugs 0.000 claims abstract description 11
- 239000002184 metal Substances 0.000 abstract description 9
- 210000004351 coronary vessel Anatomy 0.000 description 5
- 231100000915 pathological change Toxicity 0.000 description 5
- 230000036285 pathological change Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 208000007536 Thrombosis Diseases 0.000 description 3
- 210000004027 cell Anatomy 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 208000037803 restenosis Diseases 0.000 description 2
- 230000001225 therapeutic effect Effects 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 206010000891 acute myocardial infarction Diseases 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- 238000002583 angiography Methods 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 208000029078 coronary artery disease Diseases 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000916 dilatatory effect Effects 0.000 description 1
- 238000009513 drug distribution Methods 0.000 description 1
- 210000003725 endotheliocyte Anatomy 0.000 description 1
- 210000003038 endothelium Anatomy 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 230000000302 ischemic effect Effects 0.000 description 1
- 238000010147 laser engraving Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000002601 radiography Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
Images
Abstract
The utility model relates to a blood vessel scaffold which belongs to the medical appliance field. An endovascular stent is composed of a plurality of supporting sections and connecting sections, all of which are axially distributed, and every adjacent two supporting sections are connected through one connecting section; each supporting section is composed of a plurality of wave crests and wave troughs, all of which form an occlusor by mutually arraying; the axial lines of the supporting sections are mutually perpendicular to the axial directions of the connecting sections, the junction points of the supporting sections and the connecting sections are arranged between the wave crests and the wave troughs of the supporting sections, and the wave crest of each supporting section is connected with the wave crest of the adjacent supporting section through the connecting section. The blood vessel scaffold has the advantages that firstly, the spatial configuration is improved, and the passing ability and the holding power are very excellent; secondly, the metal distribution is uniform, thereby being suitable for a drug stent platform; thirdly, the outer diameter of the grasping part is small, thereby further improving the passing ability. The design plan enables the stent to have strong advantages in the whole maneuverability, the security and the drug stent carrier platform, etc. while having excellent holding power and smoothness, thereby having better prospect.
Description
Technical field
This utility model relates to a kind of intravascular stent, and more specifically say so a kind of have sinusoidal pattern linkage section and mutual cochrome coronary stent design of arranging the shape supporting section belong to medical instruments field.
Background technology
The coronary stent implantation is from 20th century the mid-80 coronary heart disease Wicresoft interventional therapeutic technique occurring and developed rapidly in nearly 5 years, this technology is under the guiding of X image documentation equipment and monitoring, operate puncture sheath pipe by the doctor, the radiography seal wire, angiography catheter, guiding catheter, guide seal wire, assistive devices such as sacculus dilating catheter, support is finally sent to pathological changes narrow location in the coronary artery, by being pressurizeed, stent delivery system expands the metal rack of fenestral fabric, make bracket leg prop up narrow pathological changes tremulous pulse, thereby reach the recovery lumen diameter, guarantee the therapeutic purposes of normal blood flow.This method has become one of main treatment means of ischemic heart desease such as the acute obturation of present clinical treatment arteria coronaria, arteria coronaria blood vessel limitation pathological changes, Vein Bridge blood vessel limitation pathological changes, the chronic pathological changes of entirely shutting, acute myocardial infarction.
At present, coronary artery bracket is varied at aspects such as material selection, structural designs, and the design demand also is not quite similar.Chinese patent ZL02266010.0 provides a kind of entocranial artery support, adopts sinusoidal wave support (1) to form basic structure in this intravascular stent, has distortion " n " connecting rod (2) that above-mentioned sinusoidal wave support (1) is linked to each other between the described sinusoidal wave support (1).Chinese patent ZL 03231353.5 provides the webmaster shape intravascular stent of a kind of structure through optimal design, a kind of structure of this support is through the webmaster shape intravascular stent of optimal design, be interconnected to constitute by the connecting rod member by a plurality of sinuous metal master structural elements, it is characterized in that: the agent structure member comprises little wave crest and big wave crest, the width of big wave crest is greater than little wave crest, little wave crest is connected with the connecting rod member, and big wave crest is not connected with the connecting rod member.The advantage of the intravascular stent of Optimal Structure Designing of the present utility model is: can realize the even expansion of support, have radial strength preferably.
Above patent all concentrates on how to embody one of support compliance or this two aspect of support force, does not still have clearly to reach design how to optimize aspects such as drug stent carrier platform from now at the overall maneuverability of support, safety.
The utility model content
The technical problems to be solved in the utility model is: overcome the shortcoming or the deficiency of the existing design of coronary artery bracket, a kind of coronary artery bracket of all more optimizing at aspects such as overall maneuverability, safety and drug stent carrier platforms is provided.
For achieving the above object, this utility model adopts following design:
A kind of intravascular stent is made of a plurality of supporting sections that prolong axial distribution and connection section, between two adjacent supporting sections, connects by connecting section; Each supporting section is made up of several crest-troughs, arranges the shape closing structure alternately; The axis of supporting section is vertical mutually with the axial direction that connects section, and supporting section is located between the crest and trough of supporting section with the junction point that connects section, and each supporting section crest all and continuous by connecting section between the adjacent supports section crest.
Described support compliance connects section and takes sinusoidal lath type design (width is littler than the support bar width), compression takes place or stretches in its sine curve part when support carries out bending and expansion, therefore the axial compliance of support is greatly improved, the adherent property of axial blood vessel and the vascular compliance of support have been improved simultaneously, the normal physiological of malleable blood vessel is not out of shape to make support, has reduced the damage to blood vessel.Submissive connection makes the axial compliance of support more even, has reduced the generation of " fish scale " and " perk " phenomenon.
The steric configuration of support takes to arrange alternately the mode of shape closed cell.The arrangement mode of supporting section " crest-trough " makes support to arrange between support unit under the prerequisite that keeps long submissive linkage section more tight, thereby it is more even that the rack space Metal Distribution is covered, be difficult for taking place prolapsing or the excessive phenomenon of local metal density after inserting human body because of the uneven speckle that causes of Metal Distribution, success rate of operation and restenosis incidence rate at a specified future date all are improved, in addition, even metal covers and makes this support satisfy the uniformity requirement of drug stent carrier platform to drug distribution.
Closed cell circumferentially is Unit 6, and this design has increased the support side shoot by potentiality when improving the support compliance, makes clinical easier collateral blood vessels is handled.
Described intravascular stent surface is provided with medication coat.Be arranged as crest-trough between the supporting section, connecting section is the sine design, on the unitary space, each supporting section crest all and have the section of connection to link to each other between the adjacent supports section crest, form complete closed-loop design, when helping as the drug stent carrier, medicine is in endovascular even release.
The novel employing L605 of this credit cochrome is as the rack platform material, carry out rack forming by L605 cochrome tubing being carried out processing such as laser engraving cutting and electrochemical polish, the mechanical strength of L605 cochrome is stainless 1.8 times of traditional coronary artery bracket material-316L, its biocompatibility excellence, so this support simultaneously adopts L605 cochrome material to improve the overall biology and the mechanical performance of support.Because of the L605 cochrome has stronger mechanical strength, therefore in the supporting structure design, take thin-walled design and the design of thin bar, when guaranteeing powerful radial support power, increased substantially the overall compliance of support, make support simultaneously behind implant into body, thereby the arteria coronaria endotheliocyte can cover rack surface rapidly shortens arteria coronaria endothelium repair time to reduce the incidence rate of thrombosis, and safety is improved.Support bar is taked 0.0028 inch wide lath type design, the lath type design has reduced the overall metal coverage rate of support, reduced to insert local inflammation reaction and damage behind the human body, thereby clinical indices such as restenosis rate, subacute stent thrombosis incidence rate and advanced thrombus incidence rate are improved.
The utility model has the advantages that: (1) steric configuration is perfect, and trafficability characteristic and support force are all very outstanding.(2) Metal Distribution is even, is fit to do the drug stent platform.(3) press that to hold external diameter little, further improve handling capacity.This design makes this support when having outstanding support force and compliance, can both give play to strong advantage at aspects such as overall maneuverability, safety and drug stent carrier platforms, has better prospect.
Below in conjunction with the drawings and specific embodiments this utility model is described further, every this area of carrying out according to this utility model is equal to replacement, all belongs to protection domain of the present utility model.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is this utility model partial structurtes enlarged drawings.
The specific embodiment
Embodiment 1:
Shown in seeing figures.1.and.2, a kind of intravascular stent is made of a plurality of supporting sections 1 that prolong axial distribution and connection section 2, between two adjacent supporting sections 1, connects by connecting section 2; Each supporting section 1 is made up of several crest-troughs, arranges the shape closing structure alternately; The axis of supporting section 1 is vertical mutually with the axial direction that connects section 2, and supporting section 1 is located between the crest and trough of supporting section with the junction point that connects section 2, and the crest of each supporting section 1 all and continuous by connecting section between the crest of adjacent supports section 1.Connecting section 2 is sinusoidal configuration.
This intravascular stent is a L605 cochrome material, and the surface can spray medication coat.
Claims (6)
1. an intravascular stent is made of a plurality of supporting sections that prolong axial distribution and connection section, between two adjacent supporting sections, connects by connecting section; Each supporting section is made up of several crest-troughs, arranges the shape closing structure alternately; The axis of supporting section is vertical mutually with the axial direction that connects section, and supporting section is located between the crest and trough of supporting section with the junction point that connects section, it is characterized in that: each supporting section crest all and continuous by connecting section between the adjacent supports section crest.
2. a kind of intravascular stent according to claim 1 is characterized in that: described connection section is sinusoidal configuration.
3. a kind of intravascular stent according to claim 1 and 2 is characterized in that: described connection section designs for lath type.
4. a kind of intravascular stent according to claim 1 and 2 is characterized in that: the intravascular stent that described intravascular stent is made for the L605 cochrome.
5. a kind of intravascular stent according to claim 1 and 2 is characterized in that: described supporting section circumferentially is Unit 6.
6. a kind of intravascular stent according to claim 1 and 2 is characterized in that: described intravascular stent surface is provided with medication coat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200790594U CN201157423Y (en) | 2008-02-29 | 2008-02-29 | Blood vessel stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200790594U CN201157423Y (en) | 2008-02-29 | 2008-02-29 | Blood vessel stent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201157423Y true CN201157423Y (en) | 2008-12-03 |
Family
ID=40108014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200790594U Expired - Fee Related CN201157423Y (en) | 2008-02-29 | 2008-02-29 | Blood vessel stent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201157423Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101745153B (en) * | 2010-01-21 | 2014-08-20 | 万瑞飞鸿(北京)医疗器材有限公司 | Cobalt-chromium alloy artery stent with full-biodegradation medicine coating, stent system and preparation method thereof |
| CN104644293A (en) * | 2014-12-30 | 2015-05-27 | 上海百心安生物技术有限公司 | Pressing and holding method and pressing and holding structure of intravascular stent |
| WO2018188059A1 (en) * | 2017-04-14 | 2018-10-18 | 深圳市方鹏科技有限公司 | Blockage-proof inner core of fuel pipe of intelligent car |
| CN108938161A (en) * | 2017-11-17 | 2018-12-07 | 杭州唯强医疗科技有限公司 | Peripheral vascular stents |
-
2008
- 2008-02-29 CN CNU2008200790594U patent/CN201157423Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101745153B (en) * | 2010-01-21 | 2014-08-20 | 万瑞飞鸿(北京)医疗器材有限公司 | Cobalt-chromium alloy artery stent with full-biodegradation medicine coating, stent system and preparation method thereof |
| CN104644293A (en) * | 2014-12-30 | 2015-05-27 | 上海百心安生物技术有限公司 | Pressing and holding method and pressing and holding structure of intravascular stent |
| WO2018188059A1 (en) * | 2017-04-14 | 2018-10-18 | 深圳市方鹏科技有限公司 | Blockage-proof inner core of fuel pipe of intelligent car |
| CN108938161A (en) * | 2017-11-17 | 2018-12-07 | 杭州唯强医疗科技有限公司 | Peripheral vascular stents |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Medfavour (Beijing) Medical Equipment Co., Ltd. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20170711 Granted publication date: 20081203 |
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| PP01 | Preservation of patent right | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Medfavour (Beijing) Medical Equipment Co., Ltd. Document name: Notice of preservation procedure |
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| PD01 | Discharge of preservation of patent |
Date of cancellation: 20180228 Granted publication date: 20081203 |
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| PD01 | Discharge of preservation of patent | ||
| DD01 | Delivery of document by public notice |
Addressee: Medfavour (Beijing) Medical Equipment Co., Ltd. Document name: Notification of Termination of Procedure |
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| DD01 | Delivery of document by public notice | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081203 Termination date: 20170229 |
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| CF01 | Termination of patent right due to non-payment of annual fee |