CN204207881U - A kind of intravascular stent - Google Patents
A kind of intravascular stent Download PDFInfo
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- CN204207881U CN204207881U CN201420394776.1U CN201420394776U CN204207881U CN 204207881 U CN204207881 U CN 204207881U CN 201420394776 U CN201420394776 U CN 201420394776U CN 204207881 U CN204207881 U CN 204207881U
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- intravascular stent
- support
- ripple bar
- groove
- intravascular
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Abstract
This utility model provides a kind of intravascular stent, and described intravascular stent includes multiple support ripple bar, described support ripple bar is provided with groove, in described groove, is filled with developing material.After intravascular stent is implanted lesion vessels, developing material makes the global shape of intravascular stent all be shown, enhance the accuracy of operation process medium vessels support location release, be more convenient for showing the form of intravascular stent in curved blood vessel, for Follow-up After is observed, whether intravascular stent is shifted, rupturing provides good judgement.
Description
Technical field
This utility model relates to technical field of medical instruments, is specifically related to a kind of intravascular stent.
Background technology
Cerebral vessels aneurysm and artery narrow be the disease of current high mortality and high disability rate, intravascular stent is widely used in treating this angiopathy as implant, its principle is that intravascular stent arrives diseased region by induction system, then stent-expansion is passed through, thus reconstruction blood vessel, treat aneurysm or angiostenosis thus.This method has the following advantages: wound is little, few intercurrent disease, safety is high, patient suffering is few, easy acceptance, hospital stays are short and the patient that the older state of an illness is heavy also can accept.
In the performance indications of support, the developing performance of support under X-ray production apparatus or other medical imaging devices all plays vital effect at operation process and Post operation to clinical effectiveness.In operation process, doctor needs to locate accurately and releasing bracket by the developing performance of intravascular stent, to ensure that support can implant diseased region exactly.After surgery, need to ensure that support can not be shifted and causes new thrombosis by following up a case by regular visits to.
Chinese patent application CN101854890A discloses a kind of support with Radiopaque marker, and wherein radiopaque markers is arranged in the end loops of support; U.S. Patent application US2004044399A1 discloses a kind of support with radiopaque interconnection element, and wherein interconnection element is in the polymeric material packed and be connected with far-end at the near-end of support with coil structure; U.S. Patent application US2004078071A1 discloses a kind of support, and it has anchoring element, and anchoring element by being wound around radiopaque coil and being formed on the pillar threaded portion of support.
Support in above-mentioned document all adopts the good material of developability to make, and the method strengthening support development adopts certain technique development pipe or development ball to be fixed on the near-end of support and far-end to improve the developing performance of support.Technique instability but this design has following shortcoming: first, mount proximal end and far-end can only be shown, and integral support can not be shown, and if also may cause development pipe or developing material to come off; Secondly, the outer end diameter of the support of this design can be larger, and technique is unfavorable for the assembling of support, and can affect the compliance of support.And be wound around at certain position of support development silk material the method improving the developing performance of support, can develop to support while not affecting support performance, but, the support being wound around development silk material in prior art can only locally develop substantially, and cannot overall develop, thus developing performance is restricted.
Utility model content
The shortcoming of prior art in view of the above, the purpose of this utility model is to provide a kind of intravascular stent, improves the developing performance of support, ensures in art and the accurate location of postoperative support under medical science developing apparatus.
For achieving the above object and other relevant objects, this utility model provides a kind of intravascular stent: described intravascular stent includes multiple support ripple bar, described support ripple bar is provided with groove, developing material is filled with in described groove, the described development of developing material composition structure, described groove and described development structure one_to_one corresponding.
According to this utility model one preferred embodiment, described development structure is yi word pattern on the direction of described support ripple bar cross section.
According to this utility model one preferred embodiment, described development structure is I font on the direction of described support ripple bar cross section.
According to this utility model one preferred embodiment, described development structure is in T font on the direction of described support ripple bar cross section.
Further, the cross section of described groove is wide at the top and narrow at the bottom trapezoidal.Preferably, described trapezoidal upper base is 1:0.8 ~ 1:0.95 with the ratio of going to the bottom.Preferred, described trapezoidal upper base and the ratio of going to the bottom are 1:0.85 ~ 1:0.9.
Further, the length of described groove is 1/3 ~ 3/4 of described support ripple pole length.
Further, the width of described groove is 1/2 ~ 1 of described support ripple bar width.Preferably, the width of described groove equals the width of described support ripple bar
Further, the degree of depth of described groove is 1/3 ~ 1/2 of described support ripple bar thickness.
Further, described groove is through hole.
Further, described development structure distribution is on each support ripple bar of described intravascular stent.
Further, described development structure distribution is on described intravascular stent spaced support ripple bar.Preferably, each support wave band is formed with two or more described development structure.
Further, described developing material is the two or more arbitrarily alloy of gold, molybdenum, tantalum, osmium, rhenium, tungsten, iridium, rhodium or described material.
Compared with prior art, the beneficial effect of intravascular stent provided by the utility model is:
By forming groove on support ripple bar, fill developing material in a groove, the global shape of intravascular stent is all shown, enhance the accuracy of operation process medium vessels support location release, be more convenient for showing the form of intravascular stent in curved blood vessel, for Follow-up After is observed, whether intravascular stent is shifted, rupturing provides good judgement.
Accompanying drawing explanation
The schematic three dimensional views of the intravascular stent medium-height trestle ripple bar that Fig. 1 provides for this utility model embodiment one.
The intravascular stent medium-height trestle ripple bar that Fig. 2 provides for this utility model embodiment one generalized section.
The floor map of the intravascular stent that Fig. 3 provides for this utility model embodiment one.
The schematic three dimensional views of the intravascular stent that Fig. 4 provides for this utility model embodiment one.
The floor map of the intravascular stent that Fig. 5 provides for this utility model embodiment one.
The schematic three dimensional views of the intravascular stent that Fig. 6 provides for this utility model embodiment one.
The schematic three dimensional views of the intravascular stent medium-height trestle ripple bar that Fig. 7 provides for this utility model embodiment two.
The generalized section of the intravascular stent medium-height trestle ripple bar that Fig. 8 provides for this utility model embodiment two.
The schematic three dimensional views of the intravascular stent medium-height trestle ripple bar that Fig. 9 provides for this utility model embodiment three.
The generalized section of the intravascular stent medium-height trestle ripple bar that Figure 10 provides for this utility model embodiment three.
Detailed description of the invention
For enabling above-mentioned purpose of the present utility model, feature and advantage become apparent more, are described in detail detailed description of the invention of the present utility model below in conjunction with accompanying drawing.When describing this utility model embodiment in detail, for convenience of explanation, general ratio partial enlargement disobeyed by schematic diagram, should in this, as to restriction of the present utility model.
Intravascular stent of the present utility model can be widely used in multiple fields; be particularly useful for various medical devices technical field; be illustrated below by preferred embodiment; certain this utility model is not limited to this specific embodiment, and the general replacement known by one of ordinary skilled in the art is encompassed in protection domain of the present utility model undoubtedly.
[embodiment one]
Please refer to Fig. 1, the schematic three dimensional views of its intravascular stent medium-height trestle ripple bar provided for this utility model embodiment one, described intravascular stent includes multiple support ripple bar, as shown in Figure 1, described support ripple bar 10 is formed with groove, in described groove, is filled with developing material, described developing material composition development structure 20, described groove and described development structure 20 one_to_one corresponding, namely form a development structure in a groove; In the present embodiment, described development structure 20 is yi word pattern in the cross-sectional direction of described support ripple bar.
Please refer to Fig. 2, its intravascular stent medium-height trestle ripple bar provided for this utility model embodiment one generalized section, as shown in Figure 2, support ripple bar 10 is formed with groove, is filled with developing material in a groove, described developing material composition development structure 20; Described groove can be circle, rectangle, square or other known shapes, and the cross section of described groove is wide at the top and narrow at the bottom trapezoidal, and described trapezoidal upper base and the ratio of going to the bottom are 1:0.8 ~ 1:0.95, preferably 1:0.85 ~ 1:0.9; The width of described groove is 1/2 ~ 1 of support ripple bar 10 width, and preferably, the width of described groove equals the width of support ripple bar; The degree of depth of described groove is 1/3 ~ 1/2 of support ripple bar 10 thickness; The length of described groove can be the length of the optional position on support ripple bar 10, preferably, is 1/3 ~ 3/4 of support ripple bar 10 length.
Described intravascular stent includes multiple support ripple bar 10, final in net tubular structure, the position of development structure 20 on support ripple bar 10 and the position of support ripple bar 10 on intravascular stent including development structure 20 are determined according to different applied field is incompatible, such as: described development structure distribution is on each support ripple bar of described intravascular stent; Or described development structure distribution is on described intravascular stent spaced support ripple bar; Continuous print support ripple bar forms an annular, forms support wave band, and on each support wave band, forms two or more development structures; Or can form the support ripple bar of development structure according to the arrangement mode of a certain rule, please refer to Fig. 3 ~ Fig. 6, it is floor map or the schematic three dimensional views of the intravascular stent including development structure.
Wherein, described developing material is the metal materials such as gold, molybdenum, tantalum, osmium, rhenium, tungsten, iridium, rhodium, or the alloy of described material any more than two or three.
[embodiment two]
Please refer to Fig. 7, the schematic three dimensional views of its intravascular stent medium-height trestle ripple bar provided for this utility model embodiment two, described intravascular stent includes multiple support ripple bar, as shown in Figure 7, described support ripple bar 10 is formed with groove, in described groove, is filled with developing material, described developing material composition development structure 20, described groove and described development structure 20 one_to_one corresponding, namely form a development structure in a groove.
As shown in Figure 7 and Figure 8, in the present embodiment, described development structure 20 is I font in the cross-sectional direction of described support ripple bar.
In the present embodiment, the degree of depth of described groove equals the thickness of described support ripple bar, and the groove namely formed on described support ripple bar is through hole, as shown in Figure 8.
[embodiment three]
Please refer to Fig. 9, the schematic three dimensional views of its intravascular stent medium-height trestle ripple bar provided for this utility model embodiment three, described intravascular stent includes multiple support ripple bar, as shown in Figure 9, described support ripple bar 10 is formed with groove, in described groove, is filled with developing material, described developing material composition development structure 20, described groove and described development structure 20 one_to_one corresponding, namely form a development structure in a groove.
As shown in Figure 9 and Figure 10, in the present embodiment, described development structure 20 is T font in the cross-sectional direction of described support ripple bar.
In the present embodiment, the degree of depth of described groove equals the thickness of described support ripple bar, and the width of described groove the widest part equals the width of described support ripple bar, as shown in Figure 10.
In sum, by forming groove on support ripple bar, fill developing material in a groove, the global shape of intravascular stent is all shown, enhance the accuracy of operation process medium vessels support location release, be more convenient for showing the form of intravascular stent in curved blood vessel, for Follow-up After is observed, whether intravascular stent is shifted, rupturing provides good judgement.
Foregoing description is only the description to this utility model preferred embodiment; any restriction not to this utility model scope; any change that the those of ordinary skill in this utility model field does according to above-mentioned disclosure, modification, all belong to the protection domain of claims.
Claims (15)
1. an intravascular stent, includes multiple support ripple bar, it is characterized in that, described support ripple bar is provided with groove, in described groove, is filled with developing material, the described development of developing material composition structure, described groove and described development structure one_to_one corresponding.
2. intravascular stent as claimed in claim 1, is characterized in that, described development structure is yi word pattern on the direction of described support ripple bar cross section.
3. intravascular stent as claimed in claim 1, is characterized in that, described development structure is I font on the direction of described support ripple bar cross section.
4. intravascular stent as claimed in claim 3, is characterized in that, described development structure is T font on the direction of described support ripple bar cross section.
5. intravascular stent as claimed in claim 1, is characterized in that, the cross section of described groove is wide at the top and narrow at the bottom trapezoidal.
6. intravascular stent as claimed in claim 5, is characterized in that, described trapezoidal upper base and the ratio of going to the bottom are 1:0.8 ~ 1:0.95.
7. intravascular stent as claimed in claim 6, is characterized in that, described trapezoidal upper base and the ratio of going to the bottom are 1:0.85 ~ 1:0.9.
8. intravascular stent as claimed in claim 1, it is characterized in that, the length of described groove is 1/3 ~ 3/4 of described support ripple pole length.
9. intravascular stent as claimed in claim 1, it is characterized in that, the width of described groove is 1/2 ~ 1 of described support ripple bar width.
10. intravascular stent as claimed in claim 9, it is characterized in that, the width of described groove equals the width of described support ripple bar.
11. intravascular stents as claimed in claim 1, is characterized in that, the degree of depth of described groove is 1/3 ~ 1/2 of described support ripple bar thickness.
12. intravascular stents as claimed in claim 1, it is characterized in that, described groove is through hole.
13. intravascular stents as claimed in claim 1, is characterized in that, described development structure distribution is on each support ripple bar of described intravascular stent.
14. intravascular stents as claimed in claim 1, is characterized in that, described development structure distribution is on described intravascular stent spaced support ripple bar.
15. intravascular stents as claimed in claim 14, is characterized in that, each support wave band is formed two or more described development structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420394776.1U CN204207881U (en) | 2014-07-17 | 2014-07-17 | A kind of intravascular stent |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420394776.1U CN204207881U (en) | 2014-07-17 | 2014-07-17 | A kind of intravascular stent |
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| CN204207881U true CN204207881U (en) | 2015-03-18 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108852568A (en) * | 2018-07-19 | 2018-11-23 | 四川兴泰普乐医疗科技有限公司 | A kind of intravascular stent and preparation method thereof of multicoat autography |
| CN110121316A (en) * | 2017-01-11 | 2019-08-13 | 百多力股份公司 | X-ray marker for bracket |
| CN110420074A (en) * | 2019-06-27 | 2019-11-08 | 深圳市先健畅通医疗有限公司 | Overlay film frame |
| US11806225B2 (en) | 2019-06-27 | 2023-11-07 | Lifetech Scientific (Shenzhen) Co. Ltd. | Covered stent |
-
2014
- 2014-07-17 CN CN201420394776.1U patent/CN204207881U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110121316A (en) * | 2017-01-11 | 2019-08-13 | 百多力股份公司 | X-ray marker for bracket |
| CN110121316B (en) * | 2017-01-11 | 2022-02-18 | 百多力股份公司 | X-ray marker for stents, method for producing same, semi-finished product and medical implant |
| CN108852568A (en) * | 2018-07-19 | 2018-11-23 | 四川兴泰普乐医疗科技有限公司 | A kind of intravascular stent and preparation method thereof of multicoat autography |
| CN110420074A (en) * | 2019-06-27 | 2019-11-08 | 深圳市先健畅通医疗有限公司 | Overlay film frame |
| CN110420074B (en) * | 2019-06-27 | 2022-04-05 | 深圳市先健畅通医疗有限公司 | Covered stent |
| US11806225B2 (en) | 2019-06-27 | 2023-11-07 | Lifetech Scientific (Shenzhen) Co. Ltd. | Covered stent |
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