CN2517403Y - Coronary artery stand with non-homogeneous waveform structure - Google Patents
Coronary artery stand with non-homogeneous waveform structure Download PDFInfo
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- CN2517403Y CN2517403Y CN 01246774 CN01246774U CN2517403Y CN 2517403 Y CN2517403 Y CN 2517403Y CN 01246774 CN01246774 CN 01246774 CN 01246774 U CN01246774 U CN 01246774U CN 2517403 Y CN2517403 Y CN 2517403Y
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- coronary stent
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Abstract
The utility model relates to a coronary artery support with the structure of heterogeneous waveform. The present coronary artery supports are in various forms but their performance still needs further improvement. The utility model is characterized in that the coronary artery support is formed via the consecutive array of a plurality of heterogenous waveform structures, and that the annular structures of heterogenous waveform are arrayed up and down in sequence, mainly comprising the n-shaped connecting links (12, 13, 14 and 15) among the short waves (1, 2, and 17), the long waves (3 and 4), the short waves (1, 2, and 17) and long waves (3 and 4) which is connected to 5 and 7, 6 and 8 or 8 and 9, which are the strut members of short waves (1, 2, 17) and long waves (3 and 4). The utility model has the advantages of strong penetration power and holding power, good axially flexibility, and even distribution when held open thus can greatly improve the effect of coronary artery operations, and has a wide application prospect.
Description
This utility model relates to a kind of coronary stent, is specifically related to a kind of coronary stent of non-homogeneous waveform configuration.
The coronary stent art is that (wound is only about 2mm) interventional therapy method is hindered by a kind of novel Wicresoft.This support is formed through cut by stainless steel tube, during use, under the monitoring of medical imaging device, utilize apparatuses such as puncture needle, catheter sheath, seal wire, conduit, this support is delivered to diseased region, support is expanded, strut the pathological changes tremulous pulse, reach the purpose of treatment.Meeting an urgent need when coronary stent not only can be used in the PTCA operation acute coronary obstruction taking place also can make complicated coronary artery patient obtain medical treatment.
Existing coronary stent form has multiple, and each is inconsistent for emphasis, and purpose all is to improve indexs such as its support force, compliance.But; existing design often improves other performances by sacrificing a part of performance; as the applicant a utility model patent had been proposed formerly once; the patent No. is: ZL 00 2 17528.2; though intrinsic coronary stent support force is high, its compliance is relatively poor, and is also relatively poor by the ability of diseased region; the inadequate shielding branch vessel is so its performance still remains further to be improved.
The purpose of this utility model just is to overcome the deficiency of existing coronary stent, and a kind of more effectively coronary stent is provided.
This utility model is achieved through the following technical solutions its purpose: at first, it adopts non-single waveform alternately to arrange and forms, and waveform is all had any different in form with on the length dimension; One group of waveform that length is little is placed on the support two ends; Adopt mechanics to strengthen at the support two ends.This utility model is changed other supports and is adopted straight-bar or " S " bar, " n " shape, little " n " shape, distortion " n " shape or two " n " shape connecting rod that it adopts straight-bar and curved bar to combine, every group of connecting rod is uniform on circumferential position, and each is organized the connecting rod curl and arranges.
This utility model support unit is that non-single waveform is alternately arranged, the development effect under the outstanding X-ray of long wave, and shortwave improves its compliance when guaranteeing enough support forces, and this does not have in other support Design.This utility model is placed on the support two ends with shortwave, has improved the ability that support passes pathological changes, the safety when having improved rack restoring again simultaneously.This utility model adopts mechanics to strengthen at the two ends of support, support is expanded open evenly, reduces the DOG-BONE phenomenon.In original design, straight-bar lacks compliance, and other designs " S " keep the ability of shape poor though the bar compliance improves, and support each unit in the process of strutting is expressed to one easily, widens can avoid extruding behind the connecting rod but compliance lowers; And " n " shape bar has compliance preferably, and when tension, resistance to compression, " n " shape bar can produce corresponding deformation, makes inside and outside dynamic balance, thereby makes the whole satisfactory texture that keeps of support.Because " n " connecting rod is longer, support connecting rod when strutting has enough stretching, extension leeway, avoided drawing distortion by pulling mutually between the connecting rod between waveform, the axial cripetura of support is reduced: support two ends shortwave is connected employing little " n " shape connecting rod with long wave, make support in expanding open procedure, increase anti-extrusion deformability, each organizes connecting rod is not the arrangement that is in line, but is arranged by spiral, and has improved the compliance of support integral body like this and has made support metamorphosis when stressed more even.
This utility model is molten quarter of stainless steel tube laser the alternative webmaster shape of length waveform structure shortwave shape support member to be designed to 7-11, and long wave shape support member is designed to 5-7.
The coronary stent of the non-homogeneous waveform configuration that this utility model provides has that ride-through capability is strong, radial support power is big, axially compliance is good, characteristics such as be evenly distributed after strutting can be improved the surgical effect of coronary stent operation greatly, have broad application prospects.
Below, the utility model is described in further detail to reach embodiment in conjunction with the accompanying drawings:
Fig. 1, Fig. 2, Fig. 3, Fig. 6, Fig. 7 are the expansion view of the representational webmaster shape of this utility model structure
Fig. 4 is Fig. 2 and Fig. 3 intermediate waves support member enlarged diagram
Fig. 5 is a long wave support member enlarged diagram among Fig. 2, Fig. 3 and Fig. 7
Shown in Fig. 1-7, the coronary stent of a kind of non-homogeneous waveform configuration that this utility model provides is through the molten network structure that is carved into of laser by stainless steel tube, described network management framework is alternately to be rearranged by a plurality of non-single waveform configurations, and these non-single wavy annular structures are arranged above and below in regular turn.Wherein, the development effect under the outstanding X-ray of long wave, shortwave improves its compliance when guaranteeing enough support forces.As shown in FIG., this utility model has shortwave 1,2,17 and long wave 3,4, arrange up and down between shortwave 1,2,17 and long wave 3,4 circuluses and be connected between the support member 5 and 7,6 and 8 or 8 and 9 by " n " shape connecting rod 12,13,14 or 15, " n " described in the utility model shape connecting rod can be little " n " shape, distortion " n " shape or two " n " shape structure; " n " shape bar has compliance preferably, and when tension, resistance to compression, " n " shape bar can produce corresponding deformation, makes inside and outside dynamic balance, thereby makes the whole satisfactory texture that keeps of support; Because " n " connecting rod is longer, support connecting rod when strutting has enough stretching, extension leeway, has avoided drawing distortion by pulling mutually between the connecting rod between waveform, and the axial cripetura of support is reduced.Shortwave 1,2 or 17 of the present utility model is placed on the support two ends outsides, and it has not only improved the ability that support passes pathological changes, safety when having improved rack restoring again simultaneously.This utility model is the mode by the shortwave at support two ends is widened 10%-30% at the support two ends, takes mechanics to strengthen, and support is expanded open evenly, reduces the DOG-BONE phenomenon.
As shown in FIG., shortwave circulus 1,2 of the present utility model or 17 is made up of the support member 5,6 or 9 of several monophasic waveforms, it is characterized in that: described support member 5,6 or 9 serves as better for about 7-11 with 9.Spring pressuring ring structure 10 can be adopted in each support member top, as shown in Figure 4; Long wave circulus 3 or 4 is made up of several monophasic waveform support members 7 or 8, it is characterized in that: described support member is about 5-7, serves as better with 6.Spring pressuring ring structure 11 also can be adopted in each support member top, as shown in Figure 5.The length ripple at two ends connects can adopt 16 connections of little " n " shape connecting rod, shown in Fig. 2-7; It makes support increase anti-extrusion deformability in expanding open procedure.By 12,13,14, the 15 uniform connections of 3-5 connecting rod, every group of connecting rod is uniform on circumferential position between the length ripple, and each is organized the connecting rod curl and arranges, and has improved the compliance of support integral body.
The metal coverage rate that this utility model is lower owing to said structure has, axially cripetura is little, the ability of passing through tortuous blood vessel is strong, and enough radial support power can be provided after strutting, and the length ripple expands that to open the back identical and be applicable to characteristics such as branch's pathological changes and crooked pathological changes to the support force of blood vessel.
Claims (9)
1, a kind of coronary stent of non-homogeneous waveform configuration is carved into network structure by stainless steel tube through laser is molten, it is characterized in that described network management framework is alternately to be rearranged by a plurality of non-single waveform configurations.
2, the coronary stent of a kind of non-homogeneous waveform configuration according to claim 1, it is characterized in that described network management framework mainly by shortwave (1,2,17), long wave (3,4), and " n " shape connecting rod (12,13,14,15) between shortwave (1,2,17) and long wave (3, the 4) circulus is connected in composition between the support member (5) of shortwave (1,2,17) and long wave (3,4) and (7), (6) and (8) or (8) and (9).
3, the coronary stent of a kind of non-homogeneous waveform configuration according to claim 1 and 2, it is characterized in that described network management framework intermediate waves structure (1,2,17) is placed on the outside, support two ends, and the outside, above-mentioned support two ends shortwave structure is widened 10-30%.
4, the coronary stent of a kind of non-homogeneous waveform configuration according to claim 1 and 2, it is characterized in that described network management framework intermediate waves circulus (1,2,17) is made up of the support member (5,6,9) of several monophasic waveforms, described support member (5,6,9) is about 7-11, serves as better with 9.
5, the coronary stent of a kind of non-homogeneous waveform configuration according to claim 1 and 2, it is characterized in that long wave circulus in the described network management framework (3,4) is made up of several monophasic waveform support members (7,8), described support member is about 5-7, serves as better with 6.
6, the coronary stent of a kind of non-homogeneous waveform configuration according to claim 4 is characterized in that the support member (5,6,9) of described monophasic waveform adopts spring pressuring ring structure (10).
7, the coronary stent of a kind of non-homogeneous waveform configuration according to claim 5 is characterized in that the support member (7,8) of described monophasic waveform adopts spring pressuring ring structure (11).
8, the coronary stent of a kind of non-homogeneous waveform configuration according to claim 1 and 2, it is characterized in that between the described length ripple by 3-5 " n " shape connecting rod (12,13,14,15) uniformly on circumferential position, each is organized the connecting rod curl and arranges.
9, the coronary stent of a kind of non-homogeneous waveform configuration according to claim 1 and 2 is characterized in that described " n " shape connecting rod (12,13,14,15) can be little " n " shape, distortion " n " shape or two " n " shape structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01246774 CN2517403Y (en) | 2001-07-27 | 2001-07-27 | Coronary artery stand with non-homogeneous waveform structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01246774 CN2517403Y (en) | 2001-07-27 | 2001-07-27 | Coronary artery stand with non-homogeneous waveform structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2517403Y true CN2517403Y (en) | 2002-10-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01246774 Expired - Lifetime CN2517403Y (en) | 2001-07-27 | 2001-07-27 | Coronary artery stand with non-homogeneous waveform structure |
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| Country | Link |
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| CN (1) | CN2517403Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1832710B (en) * | 2003-11-10 | 2010-04-14 | 夸利梅德创新医药产品有限公司 | Stent |
| CN1988857B (en) * | 2004-05-05 | 2010-09-08 | 因瓦泰克有限公司 | Endoluminal prosthesis |
| CN101579268B (en) * | 2008-05-15 | 2012-06-20 | 微创医疗器械(上海)有限公司 | Reticulated endovascular stent |
| CN104042375A (en) * | 2007-01-19 | 2014-09-17 | 万能医药公司 | Endoprosthesis structures having supporting features |
| WO2017067396A1 (en) * | 2015-10-23 | 2017-04-27 | 李雷 | Vascular stent |
| CN106618821A (en) * | 2017-01-06 | 2017-05-10 | 青岛市第三人民医院 | Intravascular stent capable of preventing vascular restenosis and preparation method of intravascular stent |
| CN106859821A (en) * | 2017-03-15 | 2017-06-20 | 大连理工大学 | A kind of biodegradable polymer intravascular stent of injection moulding |
| CN111281644A (en) * | 2020-03-09 | 2020-06-16 | 中国人民解放军陆军特色医学中心 | Multifunctional solar anti-collision rewarming blanket |
-
2001
- 2001-07-27 CN CN 01246774 patent/CN2517403Y/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1832710B (en) * | 2003-11-10 | 2010-04-14 | 夸利梅德创新医药产品有限公司 | Stent |
| CN1988857B (en) * | 2004-05-05 | 2010-09-08 | 因瓦泰克有限公司 | Endoluminal prosthesis |
| CN104042375A (en) * | 2007-01-19 | 2014-09-17 | 万能医药公司 | Endoprosthesis structures having supporting features |
| CN104042375B (en) * | 2007-01-19 | 2016-08-24 | 万能医药公司 | There is the endoprostheses of supporting member |
| CN101579268B (en) * | 2008-05-15 | 2012-06-20 | 微创医疗器械(上海)有限公司 | Reticulated endovascular stent |
| WO2017067396A1 (en) * | 2015-10-23 | 2017-04-27 | 李雷 | Vascular stent |
| CN106618821A (en) * | 2017-01-06 | 2017-05-10 | 青岛市第三人民医院 | Intravascular stent capable of preventing vascular restenosis and preparation method of intravascular stent |
| CN106859821A (en) * | 2017-03-15 | 2017-06-20 | 大连理工大学 | A kind of biodegradable polymer intravascular stent of injection moulding |
| CN106859821B (en) * | 2017-03-15 | 2018-06-15 | 大连理工大学 | A kind of biodegradable polymer intravascular stent of injection molding |
| CN111281644A (en) * | 2020-03-09 | 2020-06-16 | 中国人民解放军陆军特色医学中心 | Multifunctional solar anti-collision rewarming blanket |
| CN111281644B (en) * | 2020-03-09 | 2022-02-11 | 中国人民解放军陆军特色医学中心 | Multifunctional solar anti-collision rewarming blanket |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110727 Granted publication date: 20021023 |
|
| DD01 | Delivery of document by public notice |
Addressee: Weichuang Medical Equipment (Shanghai) Co., Ltd. Document name: Notification of Expiration of Patent Right Duration |