CN2710576Y - Laser curved 'quasi sine' tube type nickel titanium alloy support - Google Patents
Laser curved 'quasi sine' tube type nickel titanium alloy support Download PDFInfo
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- CN2710576Y CN2710576Y CNU2004200081975U CN200420008197U CN2710576Y CN 2710576 Y CN2710576 Y CN 2710576Y CN U2004200081975 U CNU2004200081975 U CN U2004200081975U CN 200420008197 U CN200420008197 U CN 200420008197U CN 2710576 Y CN2710576 Y CN 2710576Y
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- support
- crest
- corrugated ring
- sine
- titanium alloy
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Abstract
The utility model discloses a nickel titanium alloy support in medical field, the laser curved 'quasi sine' tube type nickel titanium alloy support is a pipe network structure made of many groups the 'quasi sine' corrugated ring which is enchased by the nitinol and presents the pairwise mirror symmetry. The laser curved 'quasi sine' tube type nickel titanium alloy support is can be used in the lumen for the carotid, the biliary passage, the esophagus, etc. vessels. The utility model is characterized in that the support can expand of itself by using the super elasticity of the niti-shaped memorial alloy, and does not need the saccule. The centre shaft is arranged towards to the adjacent 'quasi sine' corrugated ring and presents the mirror symmetry, and two ends of the centre shaft are designed as a bell mouth shape; the corrugated ring of the end part is longer than the corrugated ring of the case body. The wave crest of the relative elements are connected together by a short straight splice bar, one wave crest is arraned between the splice bars at the ends, and the two wave crests are positioned between the splice bars at the case body. The shape of the wave crest at outside of the bell mouth on the end is different from the shape of the other regions, and the top of the wave crest at the other regions are presented a ring type.
Description
This utility model relates to the ductwork type nick-eltitanium alloy stent design of the laser engraving of endoluminal stent plastys such as can be used for carotid artery, biliary tract and esophagus, belongs to medical instruments field.
Along with the appearance of the later stage sixties 20th century metal rack in interventional therapy, metal rack has obtained using widely in blood vessels such as coronary artery, carotid artery and in the non-blood vessels such as biliary tract, esophagus.After support is implanted, can slow down intraluminal narrowly effectively, recover physiology and flow.At present, timbering material is mainly based on the 316L medical stainless steel, but because the limitation of stainless deformability and elastic range has limited its application at tube chamber positions such as carotid artery, biliary tract and esophaguses.The support of implanting at these positions is mainly developed into gradually by the braiding of niti-shaped memorial alloy (general designation Nitinol) silk by original employing 316L medical stainless steel and forms, composition because the performance of its super bullet, is delivered to the shape that can expand into voluntarily behind the diseased region after the processing for the Nitinol that waits atomic ratio through carrier.This makes the Nitinol superelastic stents obtain application more and more widely.But because the limitation of weaving make that the general wall thickness of support of braiding is bigger, and the braiding style is fairly simple.In addition, braided support wants that enough support forces are arranged, and must guarantee certain count, and this just greatly reduces the compliance and the compression factor of support.The support compression factor is more little, and then support is difficult more puts in the undersized carrier to be transported to diseased region.
At present, begun to adopt the Nitinol tubular stent of laser engraving abroad, because advantages such as its excellent biological compatibility, corrosion resistance, shape memory characteristic and easy conveyings, the nick-eltitanium alloy stent of laser engraving is just obtaining application more and more widely.Domestic existing Nitinol engraving support has: self expansive stand (98102493.9), human vas and hollow organ tubular bracket (97223628.7) and self-expanding formula carotid artery vascular support (02271095.7).What wherein " self expansive stand " utilized is the temperature memory effect of Nitinol, makes support course of conveying relative complex, and overlap joint mutually between this kind carrier unit, and certain relative slip is arranged between the unit, bigger to vascular damaged.What " human vas and hollow organ tubular bracket " adopted is the method for the NiTi soil weld of band mesh, makes that the overall performance of support is relatively poor, and its square mesh-type design caused the compliance of support relatively poor, and does not have corresponding antiskid design." self-expanding formula carotid artery vascular support " adopted the configuration design of Palmaz-Schatz coronary stent, and the compliance of support is relatively poor, and lacks the antiskid design equally.Above shortcoming has all limited nick-eltitanium alloy stent in intraluminal application such as carotid artery, biliary tract and esophaguses, therefore, needs a kind of novel nick-eltitanium alloy stent of design, to satisfy clinical requirement.
The purpose of this utility model and task be, adopts the design principle of " class sine ", gives full play to the advantage of laser engraving support and nickel-titanium alloy material, makes the support performance reach best.Here so-called " class sine " is meant the support waveform relatively near sinusoidal wave waveform, but can be according to working condition and environment different, be designed to the structure that is close with sine wave in various degree.The final supporting structure that obtains can satisfy following requirement: 1. support has the performance of self-expanding; 2. has good radial support power after support expands; 3. the support compliance is good, easily by crooked pipeline; 4. the support compression factor is big, can put in the undersized carrier; 5. be not easy slippage behind the support location.For this reason, the special technical solution that proposes a kind of laser engraving nick-eltitanium alloy stent.
Basic design of the present utility model is: utilize the super-elasticity of Nitinol, use carrier that support is delivered to diseased region, can expand by idiomorphism after carrier is released.The design adopts " class sine " corrugated ring as the main support muscle, to reach the requirement of support to support performance; Adopt short straight rib at interval, to satisfy the requirement of compliance; Two ends are designed to the characteristics of horn mouth to guarantee to have good positioning.Adopt laser engraving to cooperate the way of subsequent heat treatment, final support is had the following advantages: 1. self-expanding; 2. high support; 3. compliance is good; 4. compression factor is big; 5. easy glide not.
The laser engraving support that this utility model is designed is axially to be engraved along it by the Nitinol pipe to make a plurality of " class sine " ripple cell cube structures [1], links to each other by short straight rib [4,5] between the axially adjacent corrugated ring [2,3].It is characterized in that: two adjacent row's " class sine " corrugated rings are mirror symmetry, and " class sine " corrugated ring [2] of end is bigger slightly than the corrugated ring [3] of body.The crest in the every interval of the short straight rib of end [4] connects with the crest of relative body unit body, and the next but two crest each other of the short straight rib [5] between the body adjacent corrugations ring, is upwards differing a crest week between the axially adjacent short straight rib of body.The length of described support is controlled by the number that increases or reduce body " class sine " cell cube structure.The horn mouth of end [I] is handled by follow-up typing and is obtained, and its outermost crest is different with the crest shape at other position, and its top is circular [6].
This " class sine " bellows-type nick-eltitanium alloy stent that this utility model is designed, adopt " class sine " corrugated ring as the cell cube structure, this kind cell cube structure makes support have higher compression factor, thereby can minimum dimension put in the carrier, support bulk deformation after opening is even, and has bigger radial support power.Axial adjacent cell cube connects by short straight rib at interval, has guaranteed the globality of support, and the short straight rib connection of next but two crest distribution makes that the compliance of support is better between body, makes support reach the hard and soft purpose that is harmonious.The horn mouth design at support two ends has guaranteed to be not easy slippage after support is implanted.The corrugated ring length of end " class sine " is bigger, and direct-connected of the weak point between end and body crest at interval only, adds the holding power of outermost circular crest design all having increased end, makes that the retention effect of support is better.
The utility model is described in further detail below in conjunction with embodiment that accompanying drawing and accompanying drawing provide:
Fig. 1 is the 3D solid pictorial diagram of the designed a kind of laser engraving of this utility model " class sine " tubular type nick-eltitanium alloy stent.
Fig. 2 is the bell-mouthed expansion view of Fig. 1 medial end portions.
Fig. 3 is the expansion view of body among Fig. 1.
As shown in Figure 1, 2, 3, a kind of tubular type nick-eltitanium alloy stent of laser engraving, it is the pipe network structure that forms by the Nitinol thin-wall pipes system of engraving, described support is axially comprising two ends [I] and a body portion [II], body comprises 10 row's multiple cell cube structures [1], two adjacent row's cell cube [1] structures are mirror symmetry, and the length of " class sine " corrugated ring [2] of end [I] will be grown than the corrugated ring [3] of body [II].The end expanded view comprises 18 crests, crest in interval between per two short straight ribs [4].The expanded view of body comprises 10 row's cell cubes, adjacent cell cube is mirror symmetry, and body 2 crests in interval between circumferentially adjacent short straight rib [5], and body is between axially adjacent dowel, the crest of being separated by again in a circumferential direction, 30 degree promptly are equivalent to rotate in a circumferential direction.The outermost crest of support top is circular [6], can further increase the support force of end, improves locating effect.This utility model is because said structure makes support have higher compliance in input process, be easy to arrive diseased region smoothly, and self-expanding has whole preferably uniformity, bigger radial support power and stationkeeping ability preferably after opening by crooked position.
Claims (3)
1. the designed laser engraving nick-eltitanium alloy stent of this utility model, it is the super-elasticity self-expanding stent of making by the Nitinol pipe, axially engrave along it by laser and to make a plurality of " class sine " ripple cell cube structures [1], axial adjacent corrugated ring [2,3] pass through short straight rib [4 between, 5] link to each other, it is characterized in that
(1) two row's " class sine " corrugated rings that body is adjacent are mirror symmetry,
(2) " class sine " corrugated ring [2] of end is bigger slightly than the corrugated ring [3] of body,
(3) short straight rib of body [5] each other next but two crest and next row be mirror symmetry crest and link to each other,
(4) crest in the short straight rib of end [4] space links to each other with the crest of relative body unit body,
(5) horn mouth of end [I] obtains by subsequent treatment, and its outermost crest is different with the crest shape at other position, and its top is circular,
The length of described support is controlled by the number that increases or reduce body " class sine " cell cube structure.
2. a kind of laser engraving Nitinol tubular stent according to claim 1 is characterized in that, employing be the ripple cell cube structure of " class sine ", the short straight rib by certain intervals between the cell cube links to each other.
3. a kind of laser engraving Nitinol tubular stent according to claim 1 is characterized in that, two ends are " horn mouth " design, and end corrugation chain rate body corrugated ring is big slightly, and the top of end corrugation ring is circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200081975U CN2710576Y (en) | 2004-03-10 | 2004-03-10 | Laser curved 'quasi sine' tube type nickel titanium alloy support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200081975U CN2710576Y (en) | 2004-03-10 | 2004-03-10 | Laser curved 'quasi sine' tube type nickel titanium alloy support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2710576Y true CN2710576Y (en) | 2005-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200081975U Expired - Fee Related CN2710576Y (en) | 2004-03-10 | 2004-03-10 | Laser curved 'quasi sine' tube type nickel titanium alloy support |
Country Status (1)
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| CN (1) | CN2710576Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011110092A1 (en) * | 2010-03-10 | 2011-09-15 | 上海微特生物技术有限公司 | Blood vessel stent facilitating to be compressed and grasped |
| CN103169557A (en) * | 2013-02-27 | 2013-06-26 | 湖南瑞康通科技发展有限公司 | Self-expandable stent system and manufacturing method thereof |
| CN106176003A (en) * | 2016-07-06 | 2016-12-07 | 苏州天鸿盛捷医疗器械有限公司 | A kind of intravascular stent, its preparation method and application |
| CN106264782A (en) * | 2016-08-25 | 2017-01-04 | 北京奇伦天佑创业投资有限公司 | Overlay film frame |
| CN108836566A (en) * | 2018-04-23 | 2018-11-20 | 北京大学 | A kind of New-support improving dog bone effect |
| US10695201B2 (en) | 2016-04-27 | 2020-06-30 | Suzhou Venmed Technology Co., Ltd. | Intravascular stent, preparation method and use thereof |
| CN113908403A (en) * | 2021-12-15 | 2022-01-11 | 艾柯医疗器械(北京)有限公司 | Intracranial catheter |
| US11471309B2 (en) | 2016-04-27 | 2022-10-18 | Suzhou Venmed Technology Co., Ltd. | Intravascular stent, preparation method and use thereof |
-
2004
- 2004-03-10 CN CNU2004200081975U patent/CN2710576Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011110092A1 (en) * | 2010-03-10 | 2011-09-15 | 上海微特生物技术有限公司 | Blood vessel stent facilitating to be compressed and grasped |
| CN103169557A (en) * | 2013-02-27 | 2013-06-26 | 湖南瑞康通科技发展有限公司 | Self-expandable stent system and manufacturing method thereof |
| US10695201B2 (en) | 2016-04-27 | 2020-06-30 | Suzhou Venmed Technology Co., Ltd. | Intravascular stent, preparation method and use thereof |
| US11471309B2 (en) | 2016-04-27 | 2022-10-18 | Suzhou Venmed Technology Co., Ltd. | Intravascular stent, preparation method and use thereof |
| CN106176003A (en) * | 2016-07-06 | 2016-12-07 | 苏州天鸿盛捷医疗器械有限公司 | A kind of intravascular stent, its preparation method and application |
| CN106264782A (en) * | 2016-08-25 | 2017-01-04 | 北京奇伦天佑创业投资有限公司 | Overlay film frame |
| CN108836566A (en) * | 2018-04-23 | 2018-11-20 | 北京大学 | A kind of New-support improving dog bone effect |
| CN113908403A (en) * | 2021-12-15 | 2022-01-11 | 艾柯医疗器械(北京)有限公司 | Intracranial catheter |
| CN113908403B (en) * | 2021-12-15 | 2022-03-29 | 艾柯医疗器械(北京)有限公司 | Intracranial catheter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DALIAN HEALTH ISLAND TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: YANG DAZHI Effective date: 20050826 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20050826 Address after: 116023, 3, building 302, office building, science and Technology Park, Dalian University of Technology, 2 Ling Ling Road, Liaoning, Dalian Patentee after: Dalian Health Island Technology Co., Ltd. Address before: Three yuan street in Xigang District of Dalian City, Liaoning province 116011 No. 3 3 703 room door Patentee before: Yang Dazhi |
|
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI KANGDELAI ENTERPRISE DEVELOPMENT GROUP M Free format text: FORMER OWNER: DALIAN HEALTH ISLAND TECHNOLOGY CO., LTD. Effective date: 20060908 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20060908 Address after: 201803 Shanghai Huajiang Road No. 18 Lane 668 Patentee after: Medical Equipment Co., Ltd., Shanghai Kangdelai Enterprise Development Group Address before: District Office of Dalian University of Technology science and Technology Park Building No. 2 linggong road Dalian city Liaoning province 116023 3 floor, Room 302 Patentee before: Dalian Health Island Technology Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050720 Termination date: 20110310 |