CN204106265U - A kind of semi open model intravascular stent - Google Patents
A kind of semi open model intravascular stent Download PDFInfo
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- CN204106265U CN204106265U CN201420453737.4U CN201420453737U CN204106265U CN 204106265 U CN204106265 U CN 204106265U CN 201420453737 U CN201420453737 U CN 201420453737U CN 204106265 U CN204106265 U CN 204106265U
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- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 28
- 210000004204 blood vessel Anatomy 0.000 claims description 23
- 229910052697 platinum Inorganic materials 0.000 claims description 14
- 230000002792 vascular Effects 0.000 claims description 14
- WAIPAZQMEIHHTJ-UHFFFAOYSA-N [Cr].[Co] Chemical class [Cr].[Co] WAIPAZQMEIHHTJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000002861 polymer material Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000012800 visualization Methods 0.000 claims 2
- 238000002360 preparation method Methods 0.000 claims 1
- 230000036285 pathological change Effects 0.000 description 6
- 231100000915 pathological change Toxicity 0.000 description 6
- 230000006872 improvement Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000002308 calcification Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 206010053648 Vascular occlusion Diseases 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 208000037803 restenosis Diseases 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 208000021331 vascular occlusion disease Diseases 0.000 description 1
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- Materials For Medical Uses (AREA)
Abstract
This utility model provides a kind of semi open model intravascular stent, is net tubular structure, comprises the agent structure bar that multiple row is wavy, is connected between adjacent body structural poles by connecting rod; Every string agent structure bar of webmaster support is integrally formed by connecting by multiple basic structure bar head and the tail, and vertically symmetrical between adjacent column agent structure bar; First row agent structure bar comprises with each basic structure bar of last string agent structure bar: a V shape pole and the head rod be connected with the crest one of V shape pole, and head rod is connected with the trough one of the V shape pole of adjacent column; Each basic structure bar of all the other agent structure bars comprises: 2 V shape poles that head and the tail one connects, and the crest of a V shape pole in 2 V shape poles is connected with the second connecting rod, and the second connecting rod is connected with the trough one of the V shape pole of adjacent column; The crest of the V shape pole that head rod is connected with the second connecting rod is m shape crest, and the crest of all the other V shape poles is n shape crest.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to a semi-open type blood vessel bracket for treating various diseases caused by serious calcification and high bending of a blood vessel lumen.
Background
Compared with the traditional surgical operation, the interventional therapy technology has the advantages of small wound, quick recovery and the like. In recent years, the technology has been rapidly developed and is becoming widespread.
The main functions of the vascular stent are to expand a diseased vessel, maintain the lumen area of the diseased vessel, reduce the incidence of acute occlusion and restenosis, and the like. An ideal stent design should be a perfect balance of compliance, support, and uniformity of expansion. However, various stents in the current market cannot achieve perfect unification in terms of expansion uniformity, flexibility and support performance balance, and stents with good support performance often have poor flexibility, cannot smoothly pass through serious calcification and bending lesions, and have poor expansion uniformity; a stent with good flexibility often cannot achieve the supporting force required by treatment.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a semi-open formula blood vessel support has solved prior art can not unified technical problem in the aspect of balanced compliance and support performance.
In order to achieve the above object, an embodiment of the present invention provides a semi-open type vascular stent, which is a net tubular structure and includes a plurality of rows of wavy main structural rods, wherein adjacent main structural rods are connected by a connecting rod;
each row of main structure rods of the network management bracket is formed by integrally connecting a plurality of basic structure rods end to end, and adjacent rows of main structure rods are bilaterally symmetrical along the vertical direction; wherein
Each basic structural bar of the first and last columns of main structural bars comprises: the first connecting rod is integrally connected with the wave trough of the V-shaped rod in the adjacent row;
each of the basic structural bars of the remaining main structural bars except the first column of main structural bars and the last column of main structural bars includes: the wave crests of one V-shaped rod in the 2V-shaped rods are connected with a second connecting rod, and the second connecting rod is integrally connected with the wave troughs of the V-shaped rods in the adjacent rows;
the wave crests of the V-shaped rods connected by the first connecting rod and the second connecting rod are m-shaped wave crests, and the wave crests of the other V-shaped rods are n-shaped wave crests;
the first connecting rod and the second connecting rod are wavy, and the linear distance of the wavy connecting rods is 0.3mm to 10 mm.
The V-shaped rods of the fifth basic structure of the first row of main body structure rods are correspondingly connected with the first connecting rods, and 2 circular platinum developing points are arranged on the first connecting rods;
the V-shaped rods of the second basic structure of the last row of main structure rods are correspondingly linked with the first connecting rods provided with 2 circular platinum developing points.
Wherein the number of basic structural bars of the first column of body structural bars and the last column of body structural bars is 6 or 8.
Wherein, the basic structure rods of the rest main body structure rods except the first row of main body structure rods and the last row of main body structure rods are 3 or 4.
Wherein the network management stent comprises at least 5 rows of the main body structure rods and at most 38 rows of the main body structure rods.
Wherein the V-shaped lever comprises a first lever arm, a second lever arm, and an n-shaped or m-shaped connecting arm connecting the first lever arm and the second lever arm; wherein,
the included angle between the first lever arm of the V-shaped lever and the horizontal direction is 5-55 degrees, and the included angle between the second lever arm and the horizontal direction is 105-176 degrees.
Preferably, the thickness of the rod body of the V-shaped rod is 0.09mm to 0.3 mm; the width of the body of the V-shaped rod is 0.05mm to 0.3 mm.
Preferably, the thickness of the rod body of the wavy connecting rod is 0.09-0.3 mm; the width of the rod body of the wavy connecting rod is 0.01mm to 0.25 mm.
Preferably, the diameter of the round platinum developing points is 0.02mm to 0.22mm, and the distance between the 2 platinum developing points is 0.025mm to 0.2 mm.
Preferably, the intravascular stent is made of a high polymer material, a cobalt-chromium alloy and a stainless steel material.
The above technical scheme of the utility model following beneficial effect has at least:
the utility model discloses among the semi-open formula blood vessel support, make this blood vessel support have semi-open structure through the basic structure pole that sets up first main part structure pole and last main part structure pole respectively and the basic structure pole of all the other main part structure poles except that first main part structure pole and last main part structure pole make, and make this blood vessel support have excellent vertical compliance, the radial support performance of support has been compromise simultaneously, make can be even and complete adherence in pathological change position after the support expansion, give the excellent support performance in pathological change position simultaneously.
Drawings
Fig. 1 is a schematic plane development view of a semi-open type blood vessel stent wave-shaped connecting rod according to an embodiment of the present invention;
fig. 2 is a schematic diagram showing the basic structure of the V-shaped rod of the semi-open type blood vessel stent according to the embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
The utility model discloses can not be with the problem unified in the aspect of balanced compliance and support performance among the prior art, in providing a semi-open formula blood vessel support, through setting up the basic structure pole of the first main part structure pole of being listed as and the last main part structure pole of being listed as respectively and the basic structure pole of all the other main part structure poles except that the first main part structure pole and the last main part structure pole of being listed as make this blood vessel support have semi-open structure, and make this blood vessel support have excellent vertical compliance, the radial support performance of support has been compromise simultaneously, make can be even and complete adherence in pathological change position after the support expansion, give the excellent support performance in pathological change position simultaneously.
As shown in fig. 1, the plane structure diagram of the semi-open type blood vessel stent of the present invention after being expanded, the embodiment of the present invention provides a semi-open type blood vessel stent, which is a net tubular structure and comprises a plurality of rows of wavy main structure rods 1, wherein adjacent main structure rods 1 are connected through a connecting rod 2;
each row of main structure rods 1 of the network management bracket is formed by integrally connecting a plurality of basic structure rods end to end, and the adjacent rows of main structure rods 1 are symmetrical left and right along the vertical direction; wherein
Each basic structural bar 10 of the first column of main structural bars 1 and the last column of main structural bars 1 comprises: the first connecting rod is integrally connected with the wave trough of the V-shaped rod in the adjacent row;
each basic structure bar 20 of the remaining main structure bars 1 except the first column of main structure bars 1 and the last column of main structure bars 1 includes: the wave crests of one V-shaped rod in the 2V-shaped rods are connected with a second connecting rod, and the second connecting rod is integrally connected with the wave troughs of the V-shaped rods in the adjacent rows;
the wave crests of the V-shaped rods connected by the first connecting rod and the second connecting rod are m-shaped wave crests, and the wave crests of the other V-shaped rods are n-shaped wave crests;
the first connecting rod and the second connecting rod are wavy, and the linear distance of the wavy connecting rods 2 is 0.3mm to 10 mm.
In the above embodiments of the present invention, the vascular stent is a tubular structure composed of meshes in the normal use process, and the shape and size of the vascular stent are adapted to the blood vessels of the human body. The connecting rod 2 specifically includes a first connecting rod and a second connecting rod, and as shown in fig. 1, a schematic plane unfolding view of the intravascular stent is shown when the first connecting rod and the second connecting rod are both wavy. It should be noted that, the wavy connecting rod only does the utility model discloses a preferred embodiment does not be used for restricting the scope of protection of this application, and the connecting rod still can be for "S" shape, N shape, M shape, rotatory H shape and so on, and the connecting rod that can reach human vascular holding power and compliance is in the embodiment of the utility model provides an all be suitable for. Specifically, in the embodiment of the present invention, the linear distance of the wavy connecting rod is 0.3mm to 10mm, that is, the linear distance between the adjacent main structure rods 1 is 0.3mm to 10mm, and the specific determination of the distance can be determined comprehensively according to the number of rows of the main structure rods, the diameter of the blood vessel of the human body, and other factors; and the linear distance between every two main body structure rods 1 can be equal or unequal, and is set according to specific conditions.
Specifically, in the above embodiment of the present invention, the basic structure rods of the first row of main structure rods 1 and the last row of main structure rods 1 are different from the basic structure rods of the other main structure rods 1, so that the present stent is implemented in a semi-open form. Preferably, the number of basic structural rods of the first column of main structural rods 1 and the last column of main structural rods 1 is 6 or 8; the basic structure rods of the rest main body structure rods 1 except the first row of main body structure rods and the last row of main body structure rods are 3 or 4; wherein each column of body structure bars 1 comprises 6 or 8V-shaped bars (each basic structure bar in the first column of body structure bars 1 and the last column of body structure bars 1 comprises 1V-shaped bar; each basic structure bar in the other body structure bars 1 comprises 2V-shaped bars). Each basic structure bar comprises 1 connecting bar (each basic structure bar in the first row of main structure bars 1 and the last row of main structure bars 1 comprises 1 first connecting bar; the other basic structure bars comprise 1 second connecting bar); that is, the first row of main structure rods 1 and the last row of main structure rods 1 respectively comprise 6 or 8 first connecting rods, and the other main structure rods 1 respectively comprise 3 or 4 second connecting rods.
Because one V-shaped rod of every two V-shaped rods in the other main body structure rods 1 except the first row and the last row is not provided with the connecting rod, a semi-open structure form is formed, the compressibility of the vascular stent in the circumferential direction is improved to a great extent, and the V-shaped rods and the connecting rods are adopted to facilitate the stent to expand to a larger size, so that the application range is wider. And each of the V-shaped rods in the first and last rows of the main body structure rods 1 has a connecting rod, the flexibility of the vascular stent is greatly improved, and the uniformity of the flexibility along the circumferential direction is improved.
In the above embodiment of the present invention, 2 circular platinum developing points 3 are provided on the first connecting rod correspondingly connected to the V-shaped rod of the fifth or seventh basic structure of the first row of main structure rods 1;
the V-shaped rods of the second basic structure of the last column of main structure rods 1 are correspondingly linked with the first connecting rods provided with 2 circular platinum developing points 3.
As shown in figure 1, 2 round platinum developing points 3 are respectively arranged at the left end and the right end of the planar development schematic diagram of the blood vessel stent, and the arrangement of the platinum developing points 3 can increase the developing performance of the stent under X-rays and facilitate the examination of the state in operation or after operation. Specifically, the diameter of the round platinum developing points 3 is 0.02mm to 0.22mm, and the distance between the 2 platinum developing points 3 is 0.025mm to 0.2 mm. It should be noted that the above specific values are only preferred values of the present invention, and are not intended to limit the scope of the present application, and the sizes and distances of the developing points in other vascular stents tailored to the blood vessels of the human body are all applicable in the present application.
In the embodiment of the present invention, preferably, the net pipe support includes at least 5 rows of the main structure rods and at most 38 rows of the main structure rods. The number of rows of the stent is determined according to the area of the patient with the vascular occlusion, and is not limited to a fixed value.
In the above embodiment of the present invention, as shown in fig. 2, the V-shaped lever includes a first lever arm 4, a second lever arm 5, and an n-shaped or m-shaped connecting arm 6 connecting the first lever arm 4 and the second lever arm 5; wherein,
the angle between the first lever arm 4 of the V-shaped lever and the horizontal direction is 5 to 55 degrees, and the angle between the second lever arm 5 and the horizontal direction is 105 to 176 degrees.
Specifically, the thickness of the V-shaped rod body is 0.09mm to 0.3 mm; the width of the body of the V-shaped rod is 0.05mm to 0.3 mm.
The thickness of the rod body of the wavy connecting rod 2 is 0.09-0.3 mm; the width of the rod body of the wavy connecting rod is 0.01mm to 0.25 mm. It should be noted that all the specific values in the embodiments of the present invention are only the preferred embodiments of the present invention, and are not used to limit the protection scope of the present application, and the improvement on the specific values also belongs to the protection scope of the present invention.
As a further improvement of the present invention, the blood vessel stent is a balloon expandable stent, and the blood vessel stent is made of a polymer material, cobalt-chromium alloy, and stainless steel, but not limited to this material.
The utility model discloses a semi-open formula vascular support's advantage lies in, this design vascular support has excellent vertical compliance, has compromise the radial support performance of support simultaneously for can be even and complete adherence in pathological change position after the support expansion, give pathological change position excellent support performance simultaneously.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A semi-open type blood vessel stent is a net tubular structure and comprises a plurality of rows of wavy main body structure rods, and adjacent main body structure rods are connected through connecting rods; it is characterized in that the preparation method is characterized in that,
each row of main structure rods of the network management bracket is formed by integrally connecting a plurality of basic structure rods end to end, and adjacent rows of main structure rods are bilaterally symmetrical along the vertical direction; wherein
Each basic structural bar of the first and last columns of main structural bars comprises: the first connecting rod is integrally connected with the wave trough of the V-shaped rod in the adjacent row;
each of the basic structural bars of the remaining main structural bars except the first column of main structural bars and the last column of main structural bars includes: the wave crests of one V-shaped rod in the 2V-shaped rods are connected with a second connecting rod, and the second connecting rod is integrally connected with the wave troughs of the V-shaped rods in the adjacent rows;
the wave crests of the V-shaped rods connected by the first connecting rod and the second connecting rod are m-shaped wave crests, and the wave crests of the other V-shaped rods are n-shaped wave crests;
the first connecting rod and the second connecting rod are wavy, and the linear distance of the wavy connecting rods is 0.3mm to 10 mm.
2. The semi-open vessel stent of claim 1, wherein the V-shaped rods of the fifth or seventh basic structure of the first row of main body structure rods are correspondingly connected with the first connecting rods with 2 round platinum developing points;
the V-shaped rods of the second basic structure of the last row of main structure rods are correspondingly linked with the first connecting rods provided with 2 circular platinum developing points.
3. The semi-open vascular stent of claim 1, wherein the primary structural rods of the first and last columns of body structural rods are 6 or 8.
4. The semi-open vascular stent of claim 3, wherein the number of primary structural rods of the remaining main body structural rods other than the first row of main body structural rods and the last row of main body structural rods is 3 or 4.
5. The semi-open vascular stent of claim 1, wherein the mesh tube stent comprises at least 5 rows of the main body structural rods and at most 38 rows of the main body structural rods.
6. The semi-open vessel stent of claim 1, wherein the V-shaped lever comprises a first lever arm, a second lever arm, and an n-shaped or m-shaped connecting arm connecting the first lever arm and the second lever arm; wherein,
the angle between the first lever arm of the V-shaped lever and the horizontal direction is 5-55 degrees, and the angle between the second lever arm and the horizontal direction is 105-176 degrees.
7. The semi-open vessel stent of claim 1, wherein the V-shaped rods have a rod body thickness of 0.09mm to 0.3 mm; the width of the body of the V-shaped rod is 0.05mm to 0.3 mm.
8. The semi-open vessel stent of claim 1, wherein the rod body thickness of the wavy connecting rod is 0.09 to 0.3 mm; the width of the rod body of the wavy connecting rod is 0.01mm to 0.25 mm.
9. The semi-open vascular stent of claim 2, wherein the circular platinum visualization points have a diameter of 0.02mm to 0.22mm, and the distance between the 2 platinum visualization points is 0.025mm to 0.2 mm.
10. The semi-open type blood vessel stent of claim 1, wherein the blood vessel stent is made of a polymer material, a cobalt-chromium alloy and a stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420453737.4U CN204106265U (en) | 2014-08-12 | 2014-08-12 | A kind of semi open model intravascular stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420453737.4U CN204106265U (en) | 2014-08-12 | 2014-08-12 | A kind of semi open model intravascular stent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204106265U true CN204106265U (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420453737.4U Expired - Fee Related CN204106265U (en) | 2014-08-12 | 2014-08-12 | A kind of semi open model intravascular stent |
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| Country | Link |
|---|---|
| CN (1) | CN204106265U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108498218A (en) * | 2018-05-10 | 2018-09-07 | 禾木（中国）生物工程有限公司 | Intravascular stent |
| CN116672021A (en) * | 2022-05-06 | 2023-09-01 | 上海励楷科技有限公司 | Support frame |
-
2014
- 2014-08-12 CN CN201420453737.4U patent/CN204106265U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108498218A (en) * | 2018-05-10 | 2018-09-07 | 禾木（中国）生物工程有限公司 | Intravascular stent |
| CN116672021A (en) * | 2022-05-06 | 2023-09-01 | 上海励楷科技有限公司 | Support frame |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150928 Address after: 266071 Shandong Province, Qingdao city Fuzhou Road No. 19 Building No. 4 room 2401 Patentee after: Zhi Chen bio tech ltd, Qingdao Address before: 100000 Beijing City, Haidian District Xisanqi gisound homes 4 Building 1 unit 1703 Patentee before: Sun Yan |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20170812 |