CN2571402Y - Self-expansion type carotid blood vessel support - Google Patents
Self-expansion type carotid blood vessel support Download PDFInfo
- Publication number
- CN2571402Y CN2571402Y CN02271095U CN02271095U CN2571402Y CN 2571402 Y CN2571402 Y CN 2571402Y CN 02271095 U CN02271095 U CN 02271095U CN 02271095 U CN02271095 U CN 02271095U CN 2571402 Y CN2571402 Y CN 2571402Y
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- Prior art keywords
- self
- blood vessel
- expansion type
- pipe
- utility
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Abstract
The utility model relates to a self-expansion type carotid blood vessel stent, which belongs to an auxiliary device used for disease therapy. The self-expansion type carotid blood vessel stent is a nickel-titanium alloy pipe, a pipe wall 1 of the nickel-titanium alloy pipe is provided with slots which are uniformly distributed in a grid shape, and the position of each row of slots is arranged staggeredly. The outer diameter of the nickel-titanium alloy pipe is 1 to 8 mm, the length is 5 to 35 mm, and the thickness of the pipe wall is 0.02 to 0.4 mm. The pipe wall can be covered with a metal film or a biological film. The utility model has simple structure, good elastic property, favorable flexibility and strong restoring and deforming ability. The self-expansion type carotid blood vessel stent dose not need pre-dilation, and the multiple dangerous factors caused by stainless steel stents in an operation can be avoided. Meanwhile, the moving range of the neck of the user can be enlarged obviously, and the safety and the success ratio of the operation are enhanced.
Description
Technical field:
This utility model relates to a kind of self-expanding formula carotid artery vascular support, and it belongs to a kind of auxiliary device of disease treatment.
Background technology:
Adopting endovascular stent is one of important means of carotid artery stenosis disease interventional therapy, the carotid stents of clinic trial is mainly balloon expandable formula stainless steel stent at present, there is following shortcoming in this support when being used for the treatment of the carotid artery stenosis disease: the stainless steel stent compliance is poor, in intervention procedure, easily cause peeling off of stricture of artery section plaque, cause acute cerebral infarction; Stainless steel stent is the balloon expandable formula, often needs the angiostenosis section is carried out predilation in intervention procedure, easily cause coming off of arteriosclerosis plaque in the predilation process, has increased the probability that acute cerebral infarction takes place the patient, and operation safety is low; Cervical region is that physical activity is the most frequent, the maximum position of mobility, because the elastic deformability of stainless steel stent is poor, extremely difficult reinstatement the after the distortion under the external force, the cervical region activity of user is subjected to great restriction after intervention, and in case deform, to have a strong impact on the blood supply function of user head, post-operative security is low.
Summary of the invention:
The purpose of this utility model is to provide a kind of good springiness, and compliance is good, does not need predilation in operation, and the self-expanding formula carotid artery vascular with good recovery deformability props up.
A kind of self-expanding formula carotid artery vascular support, it is a Nitinol pipe, is provided with to be latticed equally distributed slotted eye on the tube wall of described Nitinol pipe, the location dislocation in described every emissions groove hole is arranged.The external diameter of described Nitinol pipe is the 1-8 millimeter, and length is the 5-35 millimeter, and thickness of pipe wall is the 0.02-0.4 millimeter.On described tube wall, can cover metal film or biofilm.
Major advantage of the present utility model is as follows: the super-elasticity nick-eltitanium alloy stent has good compliance, can effectively avoid in intervention procedure conduit and support to the damage of blood vessel wall, reduced the probability that plaque peels off, reduce the risk that cerebral infarction takes place greatly, the security reliability of operation is improved; This utility model can be realized self-expanding, avoided process to angiostenosis position sacculus predilation, make easy, the safety of intervention procedure, realize accurately location easily, it is lasting to the active force of blood vessel to implant the back, the probability that the sclerosis of blood vessels speckle is come off reduces greatly, makes the operation safety and reliability; This utility model can bear the very competent of strain and shape recovery, avoided the stainless steel stent may because of what be out of shape that the back shape can not recover the life danger that causes to user, superelastic stents can make the movable scope of user cervical region enlarge markedly simultaneously, has higher safety.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model
Accompanying drawing 2 is the A-A cutaway view of this utility model accompanying drawing 1
Accompanying drawing 3 is the structural representation of this utility model after expanding
The specific embodiment:
Be that this utility model is further detailed with accompanying drawing 1,2,3 below:
This utility model has adopted the Nitinol pipe, because Nitinol can present good super-elasticity after suitably handling, its non-linear superelastic strain can reach 8%.This utility model utilizes this superelastic alloy pipe to be processed into tubulose, processing is the uniform slotted eye 3 of net distribution on tube wall 1, the design of slotted eye 3 can be an arbitrary shape, but the location dislocation that must guarantee every emissions groove hole 3 is arranged, constitute latticed slotted eye, wherein 2 is skeleton between slotted eye.This utility model expansion rear wall is latticed, and wherein 2 is the skeleton of grid.Structure as shown in accompanying drawing 3, the shape and size of grid are determined by the shape and the size of described slotted eye 3.This utility model adopts superelastic nickel titanium alloy tube 1 to make through machinery or other method.The external diameter φ of superelastic nickel titanium alloy tube 1 is 1～8mm, and length L is 5～35mm, and the compo pipe wall thickness is 0.02～0.4mm; The external diameter of this utility model pipe is 4～20mm, and length is 5～35mm.
During operation this utility model is constrained in the conduit, after being implanted to the carotid artery stenosis position, the about beam guide tube in place to go, this utility model will expand voluntarily because of good super-elasticity, play expansion and supporting role to narrow blood vessel, reach therapeutic purposes.
Claims (3)
1, a kind of self-expanding formula carotid artery vascular support is characterized in that it is a Nitinol pipe, is provided with to be latticed equally distributed slotted eye (3) on the tube wall (1) of described Nitinol pipe, and the location dislocation in described every emissions groove hole (3) is arranged.
2, the self-expanding formula carotid artery vascular support described in claim 1, the external diameter that it is characterized in that described Nitinol pipe is the 1-8 millimeter, and length is the 5-35 millimeter, and thickness of pipe wall is the 0.02-0.4 millimeter.
3, the self-expanding formula carotid artery vascular support described in claim 1 or 2 is characterized in that can covering metal film or biofilm on described tube wall (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02271095U CN2571402Y (en) | 2002-06-12 | 2002-06-12 | Self-expansion type carotid blood vessel support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02271095U CN2571402Y (en) | 2002-06-12 | 2002-06-12 | Self-expansion type carotid blood vessel support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2571402Y true CN2571402Y (en) | 2003-09-10 |
Family
ID=33736022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02271095U Expired - Lifetime CN2571402Y (en) | 2002-06-12 | 2002-06-12 | Self-expansion type carotid blood vessel support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2571402Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101983040A (en) * | 2008-02-05 | 2011-03-02 | 丝绸之路医药公司 | Interventional catheter system and methods |
| CN101094623B (en) * | 2004-09-28 | 2012-08-08 | 科迪斯公司 | Thin film medical device and delivery system |
| CN103083057A (en) * | 2004-01-22 | 2013-05-08 | 微排放器公司 | Aneurysm treatment device |
| CN104287878A (en) * | 2014-09-16 | 2015-01-21 | 李宝童 | Blood intra-cavity support |
| CN105283151A (en) * | 2013-05-23 | 2016-01-27 | 学校法人东海大学 | Stent |
| CN105853034A (en) * | 2016-03-23 | 2016-08-17 | 北京微创介入医疗装备有限公司 | Vascular stent and stent conveying system |
-
2002
- 2002-06-12 CN CN02271095U patent/CN2571402Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103083057A (en) * | 2004-01-22 | 2013-05-08 | 微排放器公司 | Aneurysm treatment device |
| CN103083057B (en) * | 2004-01-22 | 2016-04-27 | 微排放器公司 | Aneurysm treatment device |
| CN101094623B (en) * | 2004-09-28 | 2012-08-08 | 科迪斯公司 | Thin film medical device and delivery system |
| CN101983040A (en) * | 2008-02-05 | 2011-03-02 | 丝绸之路医药公司 | Interventional catheter system and methods |
| CN105283151A (en) * | 2013-05-23 | 2016-01-27 | 学校法人东海大学 | Stent |
| CN104287878A (en) * | 2014-09-16 | 2015-01-21 | 李宝童 | Blood intra-cavity support |
| CN105853034A (en) * | 2016-03-23 | 2016-08-17 | 北京微创介入医疗装备有限公司 | Vascular stent and stent conveying system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120612 Granted publication date: 20030910 |