CN107753163A - A kind of anti-skidding intravascular stent - Google Patents
A kind of anti-skidding intravascular stent Download PDFInfo
- Publication number
- CN107753163A CN107753163A CN201711222453.9A CN201711222453A CN107753163A CN 107753163 A CN107753163 A CN 107753163A CN 201711222453 A CN201711222453 A CN 201711222453A CN 107753163 A CN107753163 A CN 107753163A
- Authority
- CN
- China
- Prior art keywords
- tube wall
- skidding
- intravascular stent
- rack body
- projection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The invention discloses a kind of anti-skidding intravascular stent, it is related to medical instruments field.The anti-skidding intravascular stent of the present invention includes rack body, rack body is in hollow tubular structure, tube wall reticulates structure, tube wall is divided into symmetrical upper tube wall and lower tube wall by the plane where the axis of hollow tubular structure, projection is respectively arranged with upper tube wall and lower tube wall, the line of the raised geometric center of the raised and lower tube wall of adjacent upper tube wall is not orthogonal to the axis of hollow tubular structure.The rack body of the anti-skidding intravascular stent of the present invention is provided with projection, prevent support and angiogenesis relative displacement, simultaneously, the projection only forms extruding to the side of same section of blood vessel, support and the probability that reduction blood vessel is bursting at the collision while angiogenesis relative displacement are being prevented, is improving the safety in utilization of intravascular stent.
Description
Technical field
The present invention relates to medical instruments field, especially a kind of anti-skidding intravascular stent.
Background technology
Puncture shaping surgery, abbreviation PTA arts, it is under the guiding of medical imaging device, utilizes puncture needle, seal wire
The foley's tube for the support for being cased with tightening is injected human vas with guide sheath, and is transported at hemadostewnosis, with the expansion of sacculus
, support is also softened, and after sacculus contraction is withdrawn, the metallic support for producing plastic deformation then stays in original place, and embedded in blood vessel,
Play a part of expanding blood vessel.This method is widely used in treating angiocardiopathy at present.
The intravascular stent form of prior art have it is a variety of, most commonly rest body using shape-memory alloy wire weave
Form or be welded after being cut using marmem thin plate, through axial tension, make its axial elongation, radially shorten.
Its purpose is all the functions such as the radial support intensity of support to be improved and axially soft property, and support is integrally in the straight of cylinder
Section, after implantable intravascular, with angiogenesis relative displacement, potential threat easily is caused to patient for support.
The content of the invention
The goal of the invention of the present invention is：For above-mentioned problem, there is provided a kind of anti-skidding intravascular stent, the Antislip blood
The rack body of pipe holder is provided with projection, prevents support and angiogenesis relative displacement, meanwhile, the projection is only to same section of blood
The side of pipe forms extruding, in the probability for preventing that support is bursting at the collision with reducing blood vessel while angiogenesis relative displacement, improves
The safety in utilization of intravascular stent.
The technical solution adopted by the present invention is as follows：
A kind of anti-skidding intravascular stent, it includes rack body, and rack body is in hollow tubular structure, and tube wall reticulates structure, pipe
Wall is divided into symmetrical upper tube wall and lower tube wall by the plane where the axis of hollow tubular structure, divides on upper tube wall and lower tube wall
Projection is not provided with, and the line of the raised geometric center of the raised and lower tube wall of adjacent upper tube wall is not orthogonal to hollow tubular structure
Axis.
By adopting the above-described technical solution, the upper tube wall of rack body and lower tube wall are provided with projection, projection extruding
Blood vessel, increase the frictional force between blood vessel and rack body, prevent that relative position occurs between rack body and blood vessel
Move, it is safe.Further, since the line of the raised geometric center of the raised and lower tube wall of adjacent upper tube wall be not orthogonal to it is hollow
The axis of tubular structure, same section of blood vessel are solely subjected to that upper tube wall is raised or the extruding of lower tube wall projection one of which, i.e., unilateral
Extruding, can effectively reduce the probability that blood vessel is bursting at the collision, what is used is safe.
A kind of anti-skidding intravascular stent of the present invention, the line of the raised geometric center of the raised and lower tube wall of adjacent upper tube wall
Angle between the axis of hollow tubular structure is in 30 ° -75 ° or 105 ° -150 °.
Set by adopting the above-described technical solution, upper tube wall is raised with the raised asymmetry of lower tube wall, and adjacent upper tube
Distance is suitable between the raised and lower tube wall projection of wall, ensures its skidproof effect.
A kind of anti-skidding intravascular stent of the present invention, the projection are in arc-shaped, and the central angle of circular arc is 135 ° -180 °.
By adopting the above-described technical solution, arc-shaped projection avoids contacting the wind that blood vessel is broken up in increase with vascularization point
Danger.Central angle is too small, and raised squeezing action is too small, and skidproof effect is weak；Central angle is excessive, and it is difficult to paste completely with blood vessel
Close, it is also difficult to reach satisfied skidproof effect, or even play reverse effect.
A kind of anti-skidding intravascular stent of the present invention, the diameter of the rack body are gradually reduced from centre to both ends, both ends
The 75%-80% of a diameter of middle part diameter.
By adopting the above-described technical solution, middle part diameter is slightly larger, have using therapeutic purposes are reached, both ends diameter is slightly
It is small, there is the injury for using transition bonding is formed between support and blood vessel, preventing edge to blood vessel.
A kind of anti-skidding intravascular stent of the present invention, the length of the rack body is 0.5-20cm.
A kind of anti-skidding intravascular stent of the present invention, a diameter of 1.0-8.0mm of the rack body.
By adopting the above-described technical solution, in Clinical practice, can be according to the different or disease location of patient
The different sizes to anti-skidding intravascular stent select.
In summary, by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
Anti-skidding intravascular stent provided by the invention, it is to be provided with projection on the relative upper tube wall and lower tube wall of contacts blood,
This projects through extruding vascular wall to increase the frictional force between intravascular stent and vascular wall, so as to prevent between support and blood vessel
Relative displacement, improve the security used.Meanwhile asymmetric setting between the adjacent raised and lower tube wall projection of upper tube wall,
Ensure that same section of blood vessel is solely subjected to that upper tube wall is raised or the extruding of lower tube wall projection one of which, i.e. one-sided compression, can be effective
The probability that blood vessel is bursting at the collision is reduced, further improves the security used.
Brief description of the drawings
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein：
The planar structure schematic diagram of Fig. 1 anti-skidding intravascular stents provided by the invention；
The dimensional structure diagram of Fig. 2 anti-skidding intravascular stents provided by the invention.
In figure, 1 is rack body, and 12 be upper tube wall, and 13 be lower tube wall, and 21 be raised, and 22 be raised.
Embodiment
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive
Feature and/or step beyond, can combine in any way.
This specification（Including any accessory claim, summary）Disclosed in any feature, unless specifically stated otherwise,
Replaced by other equivalent or with similar purpose alternative features.I.e., unless specifically stated otherwise, each feature is a series of
An example in equivalent or similar characteristics.
As shown in figure 1, the present embodiment provides a kind of anti-skidding intravascular stent, it includes rack body 1, during rack body 1 is in
Hollow tube-like structure, tube wall is into hollow mesh structure.Rack body 1 in the present embodiment can be arbitrarily used for using of the prior art
Implantable material is made, such as medical stainless steel or medical macromolecular materials.The diameter of rack body 1 is gradual from centre to both ends
Reduce, the 75%-80% of a diameter of middle part diameter in both ends.Anti-skidding intravascular stent provided by the invention, the length of rack body 1
For 0.5-20cm, a diameter of 1.0-8.0cm of rack body 1.
Rack body 1 is divided into symmetrical upper tube wall 12 and lower tube wall by the plane where the axis of hollow tubular structure
13, projection 21 is provided with upper tube wall 12, projection 22, adjacent projection 21 of any two and raised 22 are provided with lower tube wall 13
The line of geometric center be not orthogonal to the axis of hollow tubular structure, the i.e. adjacent projection 21 of any two and projection 22 not
It is symmetrical arranged.Preferably, the line of geometric center and the axis of hollow tubular structure of two adjacent projections 21 and projection 22
Angle between line is in 30 ° -75 ° or 105 ° -150 °.Projection 21 and projection 22 are in arc-shaped, it is preferable that the central angle of circular arc
For 135 ° -180 °.
The invention is not limited in foregoing embodiment.The present invention, which expands to, any in this manual to be disclosed
New feature or any new combination, and disclose any new method or process the step of or any new combination.
Claims (6)
1. a kind of anti-skidding intravascular stent, it is characterised in that it includes rack body, and rack body is in hollow tubular structure, tube wall
Structure is reticulated, tube wall is divided into symmetrical upper tube wall and lower tube wall, upper tube by the plane where the axis of hollow tubular structure
Projection, the line out of plumb of the raised geometric center of the raised and lower tube wall of adjacent upper tube wall are respectively arranged with wall and lower tube wall
In the axis of hollow tubular structure.
2. anti-skidding intravascular stent according to claim 1, it is characterised in that the raised and lower tube wall of adjacent upper tube wall is raised
The line of geometric center and the axis of hollow tubular structure between angle be in 30 ° -75 ° or 105 ° -150 °.
3. anti-skidding intravascular stent according to claim 2, it is characterised in that the projection is in arc-shaped, the center of circle of circular arc
Angle is 135 ° -180 °.
4. anti-skidding intravascular stent according to claim 1, it is characterised in that the diameter of the rack body is from centre to two
End is gradually reduced, the 75%-80% of a diameter of middle part diameter in both ends.
5. anti-skidding intravascular stent according to claim 1, it is characterised in that the length of the rack body is 0.5-
20cm。
6. anti-skidding intravascular stent according to claim 1, it is characterised in that a diameter of 1.0- of the rack body
8.0mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711222453.9A CN107753163A (en) | 2017-11-29 | 2017-11-29 | A kind of anti-skidding intravascular stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711222453.9A CN107753163A (en) | 2017-11-29 | 2017-11-29 | A kind of anti-skidding intravascular stent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107753163A true CN107753163A (en) | 2018-03-06 |
Family
ID=61276211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711222453.9A Pending CN107753163A (en) | 2017-11-29 | 2017-11-29 | A kind of anti-skidding intravascular stent |
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| Country | Link |
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| CN (1) | CN107753163A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5626602A (en) * | 1992-10-12 | 1997-05-06 | Schneider (Europe) A.G. | Catheter with a vascular support |
| US20090118811A1 (en) * | 2007-11-05 | 2009-05-07 | Medtronic Vascular, Inc. | Globe Stent |
| CN101496754A (en) * | 2008-01-29 | 2009-08-05 | 太雄医疗器株式会社 | Biodegradable double stent |
| CN201977965U (en) * | 2011-03-10 | 2011-09-21 | 南京医科大学第二附属医院 | Lacrimal canaliculi stent |
| US20110301690A1 (en) * | 2007-12-12 | 2011-12-08 | Innovasc Llc | Endovascular staple |
| CN103298428A (en) * | 2010-11-16 | 2013-09-11 | W.L.戈尔及同仁股份有限公司 | Devices and methods for in situ fenestration of a stent-graft at the site of a branch vessel |
| CN204318981U (en) * | 2014-12-12 | 2015-05-13 | 刘新锋 | A kind of intravascular stent |
| CN105188790A (en) * | 2013-03-15 | 2015-12-23 | 波士顿科学国际有限公司 | Anti-migratory stent coating |
-
2017
- 2017-11-29 CN CN201711222453.9A patent/CN107753163A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5626602A (en) * | 1992-10-12 | 1997-05-06 | Schneider (Europe) A.G. | Catheter with a vascular support |
| US20090118811A1 (en) * | 2007-11-05 | 2009-05-07 | Medtronic Vascular, Inc. | Globe Stent |
| US20110301690A1 (en) * | 2007-12-12 | 2011-12-08 | Innovasc Llc | Endovascular staple |
| CN101496754A (en) * | 2008-01-29 | 2009-08-05 | 太雄医疗器株式会社 | Biodegradable double stent |
| CN103298428A (en) * | 2010-11-16 | 2013-09-11 | W.L.戈尔及同仁股份有限公司 | Devices and methods for in situ fenestration of a stent-graft at the site of a branch vessel |
| CN201977965U (en) * | 2011-03-10 | 2011-09-21 | 南京医科大学第二附属医院 | Lacrimal canaliculi stent |
| CN105188790A (en) * | 2013-03-15 | 2015-12-23 | 波士顿科学国际有限公司 | Anti-migratory stent coating |
| CN204318981U (en) * | 2014-12-12 | 2015-05-13 | 刘新锋 | A kind of intravascular stent |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180306 |
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