CN203662949U - Lower extremity artery blood vessel stent - Google Patents
Lower extremity artery blood vessel stent Download PDFInfo
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- CN203662949U CN203662949U CN201320384651.6U CN201320384651U CN203662949U CN 203662949 U CN203662949 U CN 203662949U CN 201320384651 U CN201320384651 U CN 201320384651U CN 203662949 U CN203662949 U CN 203662949U
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- stent
- lower extremity
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- intravascular stent
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Abstract
The utility model relates to a stent for lower extremity artery blood vessels, and belongs to self-expanding stents. The stent is of a tube shape with a hollowed-out reticulation structure, and the tube shape with the hollowed-out reticulation is provided with a plurality of sine waveform ring basic structures which are connected through direct type connecting rods. According to lower extremity artery blood vessel stent, a spiral structure design is adopted, so that the stent has excellent flexibility and can instantly adapt to dynamic changes of the blood vessels such as compressing, shortening, twisting and bending, patency rate is ensured, the design mode of the combination of big waves and small waves is adopted at the two ends of the stent, so that the stent has extraordinarily powerful pressure resistance and radial strength on the premise of ensuring good flexibility, the phenomenon of shifting of the stent in the blood vessels is avoided, tantalum sheet metals at the two ends of the stent have good developing property, and the stent has good traceability. Tortuous blood vessels, longer segment lesions, severe stenosis lesions can be handled easily due to excellent performance of the stent, and long-term patency rate is improved.
Description
Technical field
The utility model relates to a kind of technical field of medical instruments, be specifically related to a kind of support for artery of lower extremity blood vessel.
Background technology
Lower Extremity Arterial Occlusive Diseases is that clinical Lower Extremity Arterial Occlusive Diseases is to perplex clinically doctor's difficult problem for many years, routine medication can only relief of symptoms, can not solve lower limb ischemia symptom at all, surgical operation is put up a bridge often because pathological changes is diffusivity, postoperative effect is not good enough or the probability of post-operative complication is higher, and curative effect is not good enough.Percutaneous transluminal angioplasty (PTA) and stent endoprosthesis are the minimally-invasive treatment methods that treatment peripheral blood vessel stenosis occlusion sexually transmitted disease (STD) becomes.The main advantage of interventional therapy is low complication rate (0.5%～4%) and significant clinical effectiveness.Along with getting involved the updating of equipment, interventional therapy indication compares that surgical operation is wider, wound is little, can repetitive therapy etc. advantage, obtained in recent years swift and violent development, even become the first-selection of clinical treatment Lower Extremity Arterial Occlusive Diseases.
But percutaneous transluminal angioplasty (PTA) can cause vascular dissection to be torn and elastical retraction, and support is implanted by extruding speckle and compressing tube wall, has overcome these two major defects of PTA.It is narrow that U.S. FDA has just been ratified the main iliac artery of balloon expandable stent (Palmaz) treatment arterial obliterans of lower extremity in the early 1990s, this class support rigidity is strong, can support longer stenosis occlusion pathological changes, but its compliance and adherent property are not good, can cause support at blood vessel internal shift, affect therapeutic effect.For this reason, this utility model, from improving the angle of material and structure, has designed a kind of intravascular stent structure of effective treatment Lower Extremity Arterial Occlusive Diseases, to overcome the deficiency of balloon expandable stent.
novel content
This utility model is for the deficiencies in the prior art, a kind of artery of lower extremity intravascular stent is provided, belong to self-expansion type support (Wallstent), " spiral " structure of this support make the compliance of support and adherent performance good, and there is superpower compressive resistance and radial support power, make operator can process the serious pathological changes of those stenosis, improve long-term patency rate.
For achieving the above object, this utility model adopts following technical scheme:
A kind of artery of lower extremity intravascular stent, the hollow mesh structure that this support is tubulose;
Described engraved structure is that many group sinusoidal wave form circle basic structure forms with straight type connecting rod;
Described sinusoidal wave form circle connected mode is between adjacent sinusoidal wave form circle, to adopt straight type connecting rod to connect;
Described sinusoidal wave form circle is the circulus being made up of continuously multiple sinusoidal unit ripple;
Described " sinusoidal unit ripple " is a waveform configuration in wave-shaped ring;
Described straight type connecting rod comprises the straight type connecting rod of water flat type connecting rod and inclination angle;
Described water flat type connecting rod is that connecting rod is consistent with horizontal direction;
The straight type connecting rod in described inclination angle is the angle of connecting rod from the horizontal by certain angle;
Preferably, above-mentioned artery of lower extremity intravascular stent, described every group of wave-shaped ring is by 13～19 unit wave components.
Preferably, above-mentioned artery of lower extremity intravascular stent, described each group of sinusoidal wave form circle is by the unit wave component of varying number, and wherein, the unit wave number amount of connection bracket two ends sinusoidal wave form circle is less than other group wave-shaped rings;
Preferably, above-mentioned artery of lower extremity intravascular stent, described sinusoidal wave form circle is except the wave-shaped ring at support two ends, and all the other sinusoidal wave form circles can be on a circumference horizontal plane;
Preferably, above-mentioned artery of lower extremity intravascular stent, described " all the other sinusoidal wave form circles " becomes the angle of 10 °～60 ° with circumference horizontal plane;
Preferably, above-mentioned artery of lower extremity intravascular stent, is connected by the straight type connecting rod of varying number between described each group of sinusoidal wave form circle, and wherein the straight type connecting rod quantity of connection bracket two ends sinusoidal wave form circle is more than the connection between other group wave-shaped rings;
Preferably, above-mentioned artery of lower extremity intravascular stent, described support adopts elastic memory material;
Preferably, above-mentioned artery of lower extremity intravascular stent, described support two ends sinusoidal wave form circle is connected with some tantalum sheet metals;
Preferably, above-mentioned artery of lower extremity intravascular stent, is suitable for lower limb femoral artery,superficial and Jin Duan popliteal tremulous pulse.
The artery of lower extremity intravascular stent of this utility model reality adopts " spiral " structural design, makes support have excellent compliance, and the dynamic change (compressing, cripetura, torsion and bending) of the instantaneous adaptation blood vessel of energy, ensures patency rate; Support two ends adopt the design of large small echo combination, and support is not being lost under the prerequisite of good compliance, have superpower crushing resistance and radial support power, can avoid the generation of support in blood vessel internal shift phenomenon; The tantalum sheet metal at support two ends has good developability, makes support have good tracing property.The excellent properties of support makes to process tortuous blood vessel, a long section pathological changes, Serious Stenosis pathological changes and is more prone to, and more can improve long-term patency rate.
Brief description of the drawings
In order to be illustrated more clearly in this utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be done to simple introduction below, obviously, these accompanying drawings are only some detailed description of the invention of a kind of artery of lower extremity intravascular stent of recording of the application.This use is novel include but not limited to following these.
Fig. 1 is that hollow mesh structure partial of the present utility model launches schematic diagram one;
Fig. 2 is that hollow mesh structure partial of the present utility model launches schematic diagram two;
Fig. 3 is this utility model water flat type connecting rod one structural representation;
Fig. 4 is straight type connecting rod two structural representations in this utility model inclination angle;
Fig. 5 is the sinusoidal unit of this utility model wave structure schematic diagram.
Detailed description of the invention
Novel in order to understand better this, now by reference to the accompanying drawings this novel 26S Proteasome Structure and Function is done to simple an introduction: as shown in Fig. 1, Fig. 3, Fig. 4, Fig. 5, this utility model is by several groups of sinusoidal wave form circles one (1), sinusoidal wave form circle two (2), sinusoidal wave form circle three (3) and straight type connecting rod (4) composition; What bracket end adopted is sinusoidal wave form circle one (1) structure, formed by 17 sinusoidal unit ripples (12), the big or small same composition sinusoidal wave form of sinusoidal unit ripple (12) circle one (1), on same circumference horizontal plane; Sinusoidal wave form circle one (1) is connected with adjacent sinusoidal wave form circle two (2) with the straight type connecting rod (42) that tilts by water flat type connecting rod (41), and sinusoidal wave form circle two (2) is made up of 13 sinusoidal unit ripples (12) that vary in size; Sinusoidal wave form circle two (2) is connected with adjacent sinusoidal wave form circle three (3) with the straight type connecting rod (42) that tilts by water flat type connecting rod (41), sinusoidal wave form circle three (3) is made up of 19 identical sinusoidal unit ripples (12) of size, all sinusoidal unit ripples (12) are not on same circumference horizontal plane, and sinusoidal wave form circle three (3) becomes the angle of 10 °～15 ° with circumference horizontal plane; Along with the demand of different support length dimension, several sinusoidal wave form circles three (3) are connected by the straight type connecting rod (42) that tilts.
As shown in Figure 2, the sinusoidal wave form circle one (1) of bracket end connects some tantalum sheet metals (5), and every section connects 6.Tantalum sheet metal (5) is connected to memory alloy stent two ends by the mode of inlaying.
In sum, said structure of the present utility model not only has excellent compliance, also has superpower crushing resistance and radial support power, makes to process tortuous blood vessel, a long section pathological changes, Serious Stenosis pathological changes and is more prone to, and more can improve long-term patency rate.
Claims (9)
1. an artery of lower extremity intravascular stent, is characterized in that: the hollow mesh structure that described support is tubulose; Described hollow mesh structure is for how group sinusoidal wave form circles are formed by connecting by straight type connecting rod; The described sinusoidal wave form circle of each group is by the unit wave component of varying number, and the unit wave number amount in the sinusoidal wave form circle group of connection bracket two ends is less than other group wave-shaped rings.
2. artery of lower extremity intravascular stent as claimed in claim 1, is characterized in that, described in every group, the quantity of wave-shaped ring is 13～19 unit wave components.
3. artery of lower extremity intravascular stent as claimed in claim 1, is characterized in that, described sinusoidal wave form circle is except the wave-shaped ring at support two ends, and all the other sinusoidal wave form circles are not on a circumference horizontal plane.
4. artery of lower extremity intravascular stent as claimed in claim 1, is characterized in that, described all the other sinusoidal wave form circles become the angle of 10 °～60 ° with circumference horizontal plane.
5. artery of lower extremity intravascular stent as claimed in claim 1, is characterized in that, described straight type connecting rod comprises the straight type connecting rod of water flat type connecting rod and inclination angle.
6. artery of lower extremity intravascular stent as claimed in claim 1, it is characterized in that, between the described sinusoidal wave form circle of each group, connected by the straight type connecting rod of varying number, wherein the straight type connecting rod quantity of connection bracket two ends sinusoidal wave form circle is more than the straight type connecting rod between other group wave-shaped rings.
7. artery of lower extremity intravascular stent as claimed in claim 1, is characterized in that, described support adopts elastic memory material.
8. artery of lower extremity intravascular stent as claimed in claim 1, is characterized in that, described support two ends sinusoidal wave form circle is connected with some tantalum sheet metals.
9. artery of lower extremity intravascular stent as claimed in claim 1, is characterized in that, described artery of lower extremity is femoral artery,superficial or Jin Duan popliteal tremulous pulse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320384651.6U CN203662949U (en) | 2013-07-01 | 2013-07-01 | Lower extremity artery blood vessel stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320384651.6U CN203662949U (en) | 2013-07-01 | 2013-07-01 | Lower extremity artery blood vessel stent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203662949U true CN203662949U (en) | 2014-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320384651.6U Expired - Lifetime CN203662949U (en) | 2013-07-01 | 2013-07-01 | Lower extremity artery blood vessel stent |
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| CN (1) | CN203662949U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107242917A (en) * | 2017-07-05 | 2017-10-13 | 上海长海医院 | A kind of stent graft |
| CN108670511A (en) * | 2018-06-04 | 2018-10-19 | 浙江巴泰医疗科技有限公司 | A kind of flexible short holder of screw type |
| CN109464175A (en) * | 2018-12-21 | 2019-03-15 | 北京久事神康医疗科技有限公司 | Thrombus withdrawing device and its application method |
| CN109662819A (en) * | 2019-01-31 | 2019-04-23 | 深圳市科奕顿生物医疗科技有限公司 | A kind of Self-expanded stent and its preparation method and application |
| CN112674919A (en) * | 2020-12-25 | 2021-04-20 | 李荣福 | Completely degradable magnesium alloy stent applied to lower limb arterial vascular lesions |
| CN113116455A (en) * | 2019-12-31 | 2021-07-16 | 辽宁垠艺生物科技股份有限公司 | High-support high-compliance net pipe structure |
-
2013
- 2013-07-01 CN CN201320384651.6U patent/CN203662949U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107242917A (en) * | 2017-07-05 | 2017-10-13 | 上海长海医院 | A kind of stent graft |
| CN107242917B (en) * | 2017-07-05 | 2023-09-19 | 上海长海医院 | Stent graft |
| CN108670511A (en) * | 2018-06-04 | 2018-10-19 | 浙江巴泰医疗科技有限公司 | A kind of flexible short holder of screw type |
| CN109464175A (en) * | 2018-12-21 | 2019-03-15 | 北京久事神康医疗科技有限公司 | Thrombus withdrawing device and its application method |
| CN109464175B (en) * | 2018-12-21 | 2023-10-20 | 北京久事神康医疗科技有限公司 | Thrombus removal device and method of using same |
| CN109662819A (en) * | 2019-01-31 | 2019-04-23 | 深圳市科奕顿生物医疗科技有限公司 | A kind of Self-expanded stent and its preparation method and application |
| CN113116455A (en) * | 2019-12-31 | 2021-07-16 | 辽宁垠艺生物科技股份有限公司 | High-support high-compliance net pipe structure |
| CN113116455B (en) * | 2019-12-31 | 2023-10-24 | 辽宁垠艺生物科技股份有限公司 | High-support Gao Roushun network management structure |
| CN112674919A (en) * | 2020-12-25 | 2021-04-20 | 李荣福 | Completely degradable magnesium alloy stent applied to lower limb arterial vascular lesions |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140625 |
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| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: YALUN BIOTECHNOLOGY (BEIJING) Co.,Ltd. Person in charge of patentsThe principal of patent Document name: Notice of Termination of Patent Rights |