CN202843856U - Recyclable stent for coronary disease interventional therapy - Google Patents
Recyclable stent for coronary disease interventional therapy Download PDFInfo
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- CN202843856U CN202843856U CN201220490371.9U CN201220490371U CN202843856U CN 202843856 U CN202843856 U CN 202843856U CN 201220490371 U CN201220490371 U CN 201220490371U CN 202843856 U CN202843856 U CN 202843856U
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- stent
- recyclable
- interventional therapy
- coronary disease
- medicine
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Abstract
The utility model discloses a recyclable stent for coronary disease interventional therapy. The recyclable stent for the coronary disease interventional therapy comprises a tubular-shaped retiform stent body, wherein a plurality of tiny holes loaded with medicines are evenly distributed in the periphery of the stent body or a layer of coating capable of loading medicines is coved on the periphery surface of the stent body, and the stent body is made of nitinol with the absolute force (Af) point being 50-60 DEG C. Due to the fact that the recyclable stent for the coronary disease interventional therapy is made of the nitinol and the nitinol possesses the characteristic of shape memory, the stent is enabled to have recyclability which is manifested as the recyclability in the process of an operation, namely the stent can be recycled and readjusted when a patient feels the stent is not well placed, and can be taken out again three months later after the operation. Compared with bare stents, the recyclable stent for the coronary disease interventional therapy is capable of avoiding restenosis in diseased regions caused by vascular wall hyperplasia because foreign bodies are embedded. Compared with drug eluting stents, the recyclable stent for the coronary disease interventional therapy is capable of effectively reducing vessel hole embolism caused by long-term thrombus.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, relates in particular to a kind of recoverable support for Coronary Artery Disease Intervention Treatment.
Background technology
Using stent in the treatment coronary heart disease is one of Main Means of coronary heart disease operative treatment, has closely obtained widely clinical use.Existing bare bracket and drug stent all can not solve the problem of restenosis fully, and restenosis often needs the repetition implant frame or carries out bypass surgery after occuring, and all there is higher risk in the two.
Summary of the invention
The purpose of this utility model provides a kind of recoverable support for Coronary Artery Disease Intervention Treatment exactly in order to address the above problem, can avoid causing the blood vessel wall hypertrophy to cause the restenosis of diseased region because of the foreign body implantation.
The purpose of this utility model is achieved in that
This utility model provides a kind of recoverable support for Coronary Artery Disease Intervention Treatment, comprises the rack body that is pipe type netted, and the outer surface of described rack body is evenly distributed with several micropores, and is mounted with medicine in this micropore.
Above-mentioned a kind of recoverable support for Coronary Artery Disease Intervention Treatment, wherein, the material of described rack body is that the Af point is 50-60 ℃ Nitinol.
Above-mentioned a kind of recoverable support for Coronary Artery Disease Intervention Treatment, wherein, described medicine is the anticoagulant medicine.
Above-mentioned a kind of recoverable support for Coronary Artery Disease Intervention Treatment, wherein, described anticoagulant medicine is pareira mycin or Ramulus et folium taxi cuspidatae ketone.
This utility model also provides the another kind of recoverable support that is used for Coronary Artery Disease Intervention Treatment, comprises the rack body that is pipe type netted, and the outer surface of described rack body is attached with the coating of one deck medicine-carried thing.
Above-mentioned a kind of recoverable support for Coronary Artery Disease Intervention Treatment, wherein, the material of described rack body is that the Af point is 50-60 ℃ Nitinol.
Above-mentioned a kind of recoverable support for Coronary Artery Disease Intervention Treatment, wherein, described coating is polylactic acid or poly-interior own fat.
Above-mentioned a kind of recoverable support for Coronary Artery Disease Intervention Treatment, wherein, described medicine is the anticoagulant medicine.
Above-mentioned a kind of recoverable support for Coronary Artery Disease Intervention Treatment, wherein, described anticoagulant medicine is pareira mycin or Ramulus et folium taxi cuspidatae ketone.
This utility model compared with prior art has following beneficial effect:
1. this utility model recoverable support is made by Nitinol, the characteristics of the shape memory that has by Nitinol, make support have recuperability, its recyclability shows as the recuperability in the operation process, namely when the sensation stentplacement is not in place, reclaim again and adjust, and take out again in the postoperative three months, the Af point control of Nitinol is at 50-60 ℃, when needs take out support, arrive more than the Af point by heated holder, support is returned to by the size before the expansion, by the retracting device conduit, support is reclaimed from the vascular lesion position;
2. compared to bare bracket, this utility model recoverable support can avoid foreign body to implant the restenosis that causes the blood vessel wall hypertrophy and cause diseased region;
3. compared to bracket for eluting medicament, this utility model recoverable support can effectively reduce thrombosis at a specified future date and the blood vessel hole thromboembolism that causes.
Description of drawings
Fig. 1 is the structural representation of this utility model original state;
Fig. 2 is the structural representation of this utility model expansion state;
Fig. 3 is the schematic cross-section of embodiment 2.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Embodiment 1
See also Fig. 1 and Fig. 2, this utility model recoverable support comprises the rack body 1 that is pipe type netted, the outer surface of rack body 1 is evenly distributed with several micropores, and be mounted with medicine in this micropore, the material of rack body 1 is that the Af point is 50-60 ℃ Nitinol, and medicine is the anticoagulant medicines such as pareira mycin or Ramulus et folium taxi cuspidatae ketone.
Nickel-titanium alloy is laser-cut into pipe type netted rack body 1, then carry out capillary processing on rack body 1 surface, carry out afterwards certain heat treatment adjustment Nitinol Af point control is arrived 50-60 ℃, medicine is loaded in the micropore, and medicine can be selected the anticoagulant medicines such as pareira mycin or Ramulus et folium taxi cuspidatae ketone.Fig. 1 is the original state of this utility model body, Fig. 2 is that this utility model support enters the state behind the balloon expandable behind the human body, support after expanding is after human body uses 1 to 3 months, utilize the memory effect of Nitinol, support is heated on the Af point, make support after the expansion return to the state of Fig. 1, then by reclaiming conduit support is sent human body.
See also Fig. 1 to Fig. 3, this utility model recoverable support comprises the rack body 1 that is pipe type netted, the outer surface of rack body 1 is attached with the coating 2 of one deck medicine-carried thing, the material of rack body 1 is that the Af point is 50-60 ℃ Nitinol, coating 2 is polylactic acid or poly-interior own fat, and the medicine of loading is the anticoagulant medicines such as pareira mycin or Ramulus et folium taxi cuspidatae ketone.
Nickel-titanium alloy is laser-cut into pipe type netted rack body 1, then carry out capillary processing on rack body 1 surface, carry out afterwards certain heat treatment adjustment Nitinol Af point control is arrived 50-60 ℃, be mixed with the coating 2 of medicine at rack body 1 surface spraying, medicine can be selected the anticoagulant medicines such as pareira mycin or Ramulus et folium taxi cuspidatae ketone.Fig. 1 is the original state of this utility model body, Fig. 2 is that this utility model support enters the state behind the balloon expandable behind the human body, support after expanding is after human body uses 1 to 3 months, utilize the memory effect of Nitinol, support is heated on the Af point, make support after the expansion return to the state of Fig. 1, then by reclaiming conduit support is sent human body.
Above embodiment is only for illustration of the utility model, but not to restriction of the present utility model, person skilled in the relevant technique, in the situation that does not break away from spirit and scope of the present utility model, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present utility model, should be limited by each claim.
Claims (7)
1. recoverable support that is used for Coronary Artery Disease Intervention Treatment, comprise the rack body that is pipe type netted, it is characterized in that, the outer surface of described rack body is evenly distributed with several micropores, and be mounted with medicine in this micropore, the material of described rack body is that the Af point is 50-60 ℃ Nitinol.
2. a kind of recoverable support for Coronary Artery Disease Intervention Treatment as claimed in claim 1 is characterized in that, described medicine is the anticoagulant medicine.
3. a kind of recoverable support for Coronary Artery Disease Intervention Treatment as claimed in claim 2 is characterized in that, described anticoagulant medicine is pareira mycin or Ramulus et folium taxi cuspidatae ketone.
4. recoverable support that is used for Coronary Artery Disease Intervention Treatment, comprise the rack body that is pipe type netted, it is characterized in that the outer surface of described rack body is attached with the coating of one deck medicine-carried thing, the material of described rack body is that the Af point is 50-60 ℃ Nitinol.
5. a kind of recoverable support for Coronary Artery Disease Intervention Treatment as claimed in claim 4 is characterized in that, described coating is polylactic acid or poly-interior own fat.
6. such as claim 4 or 5 described a kind of recoverable supports for Coronary Artery Disease Intervention Treatment, it is characterized in that described medicine is the anticoagulant medicine.
7. a kind of recoverable support for Coronary Artery Disease Intervention Treatment as claimed in claim 6 is characterized in that, described anticoagulant medicine is pareira mycin or Ramulus et folium taxi cuspidatae ketone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220490371.9U CN202843856U (en) | 2012-09-24 | 2012-09-24 | Recyclable stent for coronary disease interventional therapy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220490371.9U CN202843856U (en) | 2012-09-24 | 2012-09-24 | Recyclable stent for coronary disease interventional therapy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202843856U true CN202843856U (en) | 2013-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220490371.9U Expired - Lifetime CN202843856U (en) | 2012-09-24 | 2012-09-24 | Recyclable stent for coronary disease interventional therapy |
Country Status (1)
| Country | Link |
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| CN (1) | CN202843856U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107648682A (en) * | 2017-09-29 | 2018-02-02 | 云南靖创液态金属热控技术研发有限公司 | A kind of recyclable cardiac stent |
| CN107754026A (en) * | 2017-09-29 | 2018-03-06 | 云南靖创液态金属热控技术研发有限公司 | A kind of recyclable cardiac stent |
| CN107811727A (en) * | 2017-09-29 | 2018-03-20 | 云南靖创液态金属热控技术研发有限公司 | A kind of recyclable cardiac stent |
| CN111388143A (en) * | 2020-04-17 | 2020-07-10 | 赵晓辉 | Intravascular stent with elastic energy storage section consisting of Z-shaped rings |
| CN111388144A (en) * | 2020-04-17 | 2020-07-10 | 赵晓辉 | Easy-to-recycle intravascular stent |
| CN112169024A (en) * | 2020-08-31 | 2021-01-05 | 北京中医药大学东直门医院 | Drug composite coating coronary artery degradable stent and kit |
-
2012
- 2012-09-24 CN CN201220490371.9U patent/CN202843856U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107648682A (en) * | 2017-09-29 | 2018-02-02 | 云南靖创液态金属热控技术研发有限公司 | A kind of recyclable cardiac stent |
| CN107754026A (en) * | 2017-09-29 | 2018-03-06 | 云南靖创液态金属热控技术研发有限公司 | A kind of recyclable cardiac stent |
| CN107811727A (en) * | 2017-09-29 | 2018-03-20 | 云南靖创液态金属热控技术研发有限公司 | A kind of recyclable cardiac stent |
| CN111388143A (en) * | 2020-04-17 | 2020-07-10 | 赵晓辉 | Intravascular stent with elastic energy storage section consisting of Z-shaped rings |
| CN111388144A (en) * | 2020-04-17 | 2020-07-10 | 赵晓辉 | Easy-to-recycle intravascular stent |
| CN112169024A (en) * | 2020-08-31 | 2021-01-05 | 北京中医药大学东直门医院 | Drug composite coating coronary artery degradable stent and kit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130403 |