CN201930101U - Intracranial temporary bracket - Google Patents
Intracranial temporary bracket Download PDFInfo
- Publication number
- CN201930101U CN201930101U CN2010206591695U CN201020659169U CN201930101U CN 201930101 U CN201930101 U CN 201930101U CN 2010206591695 U CN2010206591695 U CN 2010206591695U CN 201020659169 U CN201020659169 U CN 201020659169U CN 201930101 U CN201930101 U CN 201930101U
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- China
- Prior art keywords
- intracranial
- bracket
- falsework
- memory alloy
- described support
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Abstract
The utility model relates to an intracranial temporary bracket. The intracranial temporary bracket has a pipe network structure formed by weaving memory alloy wires; the middle part of the bracket is provided with a cylindrical straight section; the two ends of the bracket are provided with conical sections; the joints between the conical sections and the straight section are in smooth transition with each other; and the tail ends of the memory alloy wires at one end of the bracket are fixed together to form the top ends of the conical sections. By the intracranial temporary bracket, falling thrombi or plaque contents can be caught while an intracranial stenosed lesion site is spread, so that a stenosed tube cavity is opened timely, blood supply is reconstructed, and the falling thrombi or plaque contents are prevented from flowing along with blood, embolizing far end blood vessels and causing new ischemia events. The intracranial temporary bracket can be recovered after the aim of treatment is fulfilled, and blocked emboli are brought out of a body, so that relevant defects of an implanted permanent bracket are overcome.
Description
Technical field
This utility model relates to a kind of intracranial stent, particularly a kind of intracranial falsework.
Background technology
Apoplexy serious threat human health has sickness rate height, disability rate height, relapse rate height, mortality rate height and the high characteristics of medical cost ratio.The total investigation of 1993 and national health service in 2003 shows that apoplexy direct medical cost average annual growth rate is 18.04%, has obviously surpassed the GDP growth speed same period (8.95%).Along with the aging of population, the problem of apoplexy will be serious day by day, and society and economy will can't bear the heavy load.
80% apoplexy is an Ischemic Stroke, and the suitable case of Ischemic Stroke to be entocranial artery atherosis narrow due to.Epidemiologic data shows narrow 8%～10% of the Ischemic Stroke that accounts for of entocranial artery atherosclerotic.Narrow due to the entocranial artery atherosclerotic plaque causes Ischemic Stroke by following one or more pathophysiological mechanisms: (1) narrow far-end cerebral tissue perfusion is lost compensatory; (2) plaque rupture causes thrombosis or speckle internal hemorrhage to cause obliteration; (3) speckle content or plaque surface thrombosis come off and cause tremulous pulse to arterial thrombosis; (4) dark perforating branches tremulous pulse peristome obturation.
The atherosis narrow therapeutic scheme of the symptomatic entocranial artery of present up-to-date recommendation remains antiplatelet drug and corrects risk factors for atherosclerosis (comprising the treatment of statins accent fat, controlling blood pressure, blood glucose etc.).Recently WASID found stenosis serious (〉=70%) and caused the entocranial artery atherosclerotic of cerebral ischemia incident recently narrow be the independent prediction factor of homonymy recurrent Ischemic Stroke.Research shows that also the narrow patient of entocranial artery atherosclerotic of Antiplatelet therapy failure has higher homonymy recurrent ischemic stroke incidence in addition.These results gloomy have inspired the research of carrying out more positive intervention treatment, for example endovascular stent plasty.Stent endoprosthesis is being obtained some challenging achievements aspect the treatment entocranial artery atherosclerotic speckle in recent years, but there is deficiency in existing support when the entocranial artery sclerostenosis (unstable spot merging thrombosis) of some specific type of treatment.
The utility model content
At the problem that prior art exists, the purpose of this utility model provides a kind of intracranial falsework, and this intracranial falsework is expansible by the narrow positions due to the entocranial artery atherosclerotic plaque, and can catch thrombosis and the speckle content that comes off.
The purpose of this utility model specifically realizes by following technical scheme:
A kind of intracranial falsework, described support is the TRS that is formed by the memory alloy wire braiding, the mid portion of described support is columniform flat segments, the two ends of described support are conical awl sections, described awl section seamlessly transits with the joint of described flat segments, is fixed together the top that forms described conical awl section at the end of the described memory alloy wire of described support one end.
In intracranial falsework described in the utility model, described support is formed by 10～30 described memory alloy wire braidings.
In intracranial falsework described in the utility model, the length of described flat segments is 50%～80% of described support total length.
In intracranial falsework described in the utility model, the length of described awl section is 20%～50% of described support total length.
In intracranial falsework described in the utility model, the described awl section at described TRS two ends is symmetrical.
In intracranial falsework described in the utility model, the end of described memory alloy wire is fixed together by the metal canula that can develop under x-ray fluoroscopy.End away from support of described metal canula is closed.
Compare with prior art, intracranial falsework of the present utility model has the following advantages:
1, intracranial falsework of the present utility model can be caught thrombosis or the speckle content that comes off when strutting intracranial stenotic lesion position, in time open narrow tube chamber, reconstruction blood fortune, and avoided the thrombosis or the speckle content antegrade blood flow thromboembolism distal vessels that come off, cause new ischemic event.
2, the support power height of the flat segments of intracranial falsework of the present utility model, can be close to blood vessel wall after the release and be difficult for displacement, the awl section can be caught thrombosis or the speckle content that comes off, this support can in time improve blood and supply during the state of an illness increases the weight of, tackle come off thrombosis and speckle content, treat to reclaim support after the stable disease.The entocranial artery sclerostenosis (unstable spot merging thrombosis) that is introduced as some specific type of treatment of said apparatus provides new selection.
Description of drawings
Fig. 1 looks sketch map for the master of the intracranial falsework of an embodiment of the present utility model.
Fig. 2 looks sketch map for the right side of intracranial falsework shown in Figure 1.
Fig. 3 is the sketch map of the intracranial falsework of another embodiment of the present utility model.
Fig. 4 is the sketch map of the intracranial falsework of another embodiment of the present utility model.
Wherein: 1, support; 2, awl section; 3, flat segments; 4, the top of awl section; 5, metal canula.
Accompanying drawing only is typical exemplary applications, and claim protection domain of the present utility model is not constituted any limitation.
The specific embodiment
Clearer for the purpose of this utility model, technical scheme and advantage are described, reach embodiment in conjunction with the accompanying drawings, intracranial falsework of the present utility model is further elaborated.It is emphasized that specific embodiment described herein only in order to explain this utility model, is not to qualification of the present utility model.
Shown in Fig. 1-2, intracranial falsework 1 of the present utility model is the TRS that is formed by 25 memory alloy wire braidings, the mid portion of described support is columniform flat segments 3, the length of described flat segments is about 50% of described support total length, the two ends of described support are conical awl sections 2, the length of described awl section 2 is 25% of described support total length, the awl section at the two ends of described support is symmetrical, described awl section 2 seamlessly transits with the joint of described flat segments 3, end at the described memory alloy wire of described support 1 one ends is fixed together, and forms the top 4 of described conical awl section.
As shown in Figure 3, intracranial falsework 1 of the present utility model is the TRS that is formed by 12 memory alloy wire braidings, the mid portion of described support is columniform flat segments 3, the length of described flat segments is about 40% of described support total length, the two ends of described support are conical awl sections 2, the length of described awl section 2 is 30% of described support total length, described awl section 2 seamlessly transits with the joint of described flat segments 3, end at the described memory alloy wire of described support 1 one ends is fixed together, and forms the top 4 of described conical awl section.
As shown in Figure 4, intracranial falsework 1 of the present utility model is the TRS that is formed by 12 memory alloy wire braidings, the mid portion of described support is columniform flat segments 3, the length of described flat segments is about 40% of described support total length, the two ends of described support are conical awl sections 2, the length of described awl section 2 is 30% of described support total length, the awl section at described support two ends is symmetrical, described awl section 2 seamlessly transits with the joint of described flat segments 3, and the metal canula 5 that the end of described memory alloy wire can be developed under X-ray is fixed together.End away from support of described metal canula 5 is closed.
Above specific embodiment only is a concrete exemplary applications of the present utility model, and protection domain of the present utility model is not constituted any limitation.All employing equivalents or be equal to the technical scheme of replacing and forming all drop within this utility model rights protection scope.
Claims (7)
1. intracranial falsework, described support is the TRS that is formed by the memory alloy wire braiding, it is characterized in that, the mid portion of described support is columniform flat segments, the two ends of described support are conical awl sections, described awl section seamlessly transits with the joint of described flat segments, is fixed together the top that forms described conical awl section at the end of the described memory alloy wire of described support one end.
2. intracranial falsework according to claim 1 is characterized in that, described support is formed by 10～30 described memory alloy wire braidings.
3. intracranial falsework according to claim 1 is characterized in that, the length of described flat segments is 50%～80% of described support total length.
4. intracranial falsework according to claim 1 is characterized in that, the length of described awl section is 20%～50% of described support total length.
5. intracranial falsework according to claim 1 is characterized in that, the described awl section at described TRS two ends is symmetrical.
6. intracranial falsework according to claim 1 is characterized in that, the end of described memory alloy wire is fixed together by the metal canula that can develop under x-ray fluoroscopy.
7. intracranial falsework according to claim 6 is characterized in that, the end away from support of described metal canula is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206591695U CN201930101U (en) | 2010-12-15 | 2010-12-15 | Intracranial temporary bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206591695U CN201930101U (en) | 2010-12-15 | 2010-12-15 | Intracranial temporary bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201930101U true CN201930101U (en) | 2011-08-17 |
Family
ID=44441643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206591695U Expired - Fee Related CN201930101U (en) | 2010-12-15 | 2010-12-15 | Intracranial temporary bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201930101U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103271785A (en) * | 2013-06-08 | 2013-09-04 | 周玉杰 | Tapered metal bracket |
| CN105455878A (en) * | 2016-01-26 | 2016-04-06 | 加奇生物科技（上海）有限公司苏州分公司 | Catching device |
-
2010
- 2010-12-15 CN CN2010206591695U patent/CN201930101U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103271785A (en) * | 2013-06-08 | 2013-09-04 | 周玉杰 | Tapered metal bracket |
| CN105455878A (en) * | 2016-01-26 | 2016-04-06 | 加奇生物科技（上海）有限公司苏州分公司 | Catching device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110817 Termination date: 20151215 |
|
| EXPY | Termination of patent right or utility model |