CN2493176Y - Ohm type vascular support - Google Patents
Ohm type vascular support Download PDFInfo
- Publication number
- CN2493176Y CN2493176Y CN01248721U CN01248721U CN2493176Y CN 2493176 Y CN2493176 Y CN 2493176Y CN 01248721 U CN01248721 U CN 01248721U CN 01248721 U CN01248721 U CN 01248721U CN 2493176 Y CN2493176 Y CN 2493176Y
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- CN
- China
- Prior art keywords
- bracket
- ohm
- blood vessel
- rhombic net
- rhombus
- 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.)
- Expired - Fee Related
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Abstract
An ohm-type blood vessel bracket includes a rhombic net (1) and a connected body (2) and is characterized in that terminal angles at two sides of the rhombic net (1) are ohm-shaped; the connected body (2) is M-shaped and is respectively connected with the contiguous rhombic net (1). The bracket is the improvement of a traditional coronary artery bracket, and the bracket presents a special squared rhomb and at the time provides a function of a unit cell microcosmic extending and compensating when the bracket is expanded. The bracket greatly reduced the probability of the action and damnification towards partial units of the endometrial tissue of the blood vessel, and accordingly the possibility of a restenosis, which is caused by the attached growth of the endometrial tissue of the blood vessel, is reduced. In addition, the wave direction of M-waves is in accordance with the flow direction of the blood and also has quite large deformability, so the transportation process of the bracket puts up an ideal compliance.
Description
Technical field
This utility model relates to intravascular stent, particularly the ohm-type intravascular stent.
Background technology
The percutaneous coronary artery angiography urethroptasty is to cure the effective measures that cause coronary heart disease because of coronary stricture, be support to be sent into the coronary stricture place by conduit, sacculus, dilating sacculus struts the support that has contracted on sacculus simultaneously and makes the blood vessel that narrows down recover normal then, support is set in blood vessel, the assurance blood flow is unimpeded, removes coronary heart disease.The coronary stent kind is a lot, more representational at present and most widely used is NIR support (1997), this support is by sinusoidal wave axially-aligned and accompanies rule V-arrangement disjunctor to connect, its advantage is just to have formed a plurality of rhombus nets that face mutually behind balloon expandable, and good radial support power is arranged.And support can keep certain axial bending when tightening.But the shortcoming of this support is: the metal occupied area is bigger, has increased coagulation factor, and the unit cell space is less, influences the unobstructed and shaping operation of side shoot blood flow, and the performance axial stiffness is difficult for more by force transporting in curved blood vessel in the transport process.
Summary of the invention
The ohm-type intravascular stent comprises rhombus net 1, disjunctor 2, it is characterized in that rhombus net 1 two side ends angle is ohm shape, and disjunctor 2 connects adjacent rhombus net 1 respectively for the M shape.
This utility model is the improvement of traditional coronary stent, and support presents a kind of special side's rhombus and extends compensate function with the unit cell microcosmic simultaneously by expansion the time.We adopt a kind of special rhombus in design, make traditional rhombus wedge angle into " greater than semicircle " fillet; Change the classic diamond shape obtuse angle into " M " shape wave and connect, staggered linking to each other of special like this rhombus constitutes a kind of novel tubular reticulum type support.It with regard to lozenge diagram the good and figure of poor stability of a kind of folded deformation.We at first become its acute angle the arc fillet greater than semicircle, its objective is in order to make its rhombus unit cell keep good folding property on the whole, and reduce stress concentration around the corner, avoid local retrospective distortion, simultaneously because the arch arc effect of arc fillet, realized under the prerequisite that does not increase material, having improved radial support power, made its stability.Fillet is compared with wedge angle in addition, significantly reduced local unit effect and damage probability to the tunica intima tissue, thereby has reduced the growth of tunica intima tissue apposition and the probability of the restenosis that causes.Moreover we become the connection of " M " formula shape wave with its obtuse angle, its reason is that " M " formula wave has fabulous axial expansion extension ability, when support is expanded on attached to sacculus together, the frictional force of adhering to of rack inner wall and balloon surface is enough to cause that the microcosmic of each rhombus unit cell extends, and it has automatically compensated the caused axial shortening of rhombus radial dilatation just.The fluctuation direction of " M " wave is consistent with the flow direction of blood in addition bigger deformability again, thereby makes it show ideal compliance in the process that transports.
Description of drawings
This utility model accompanying drawing 1 launches sketch map for the ohm-type intravascular stent, and Fig. 2 is an ohm-type intravascular stent side view, wherein rhombus net 1, disjunctor 2.
The specific embodiment
Support external diameter 1.65mm, internal diameter 1.41mm launches long 14.5mm, launches wide 4.8mm, silk screen diameter 0.15mm, the long 2.8mm of rhombus, spacing 1.1mm.Optional medical stainless steel of the material of support or Nitinol.Rhombus net two side ends angle is a fillet greater than semicircle for ohm shape, the fillet rhombus formation tubular ring that joins continuously up and down.
Claims (2)
1, ohm-type intravascular stent comprises rhombus net 1, disjunctor 2, it is characterized in that rhombus net 1 two side ends angle is ohm shape, and disjunctor 2 connects adjacent rhombus net 1 respectively for the M shape.
2, ohm-type intravascular stent according to claim 1 is characterized in that rhombus net 1 two side ends angle is that ohm shape is the fillet greater than semicircle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01248721U CN2493176Y (en) | 2001-07-18 | 2001-07-18 | Ohm type vascular support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01248721U CN2493176Y (en) | 2001-07-18 | 2001-07-18 | Ohm type vascular support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2493176Y true CN2493176Y (en) | 2002-05-29 |
Family
ID=33659296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01248721U Expired - Fee Related CN2493176Y (en) | 2001-07-18 | 2001-07-18 | Ohm type vascular support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2493176Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100349559C (en) * | 2004-11-17 | 2007-11-21 | 大连大学 | Flange plate type cylinder network holder isodiametric contractor |
| CN1832710B (en) * | 2003-11-10 | 2010-04-14 | 夸利梅德创新医药产品有限公司 | Stent |
| CN106983562A (en) * | 2016-03-23 | 2017-07-28 | 卢锦山 | One kind is blockaded for ureter subtracts a device with traction force |
| CN108969165A (en) * | 2018-06-13 | 2018-12-11 | 哈尔滨工业大学 | A kind of 4D printing shape memory polymer composite material trachea bracket and preparation method thereof |
| CN110248620A (en) * | 2017-02-02 | 2019-09-17 | C·R·巴德股份有限公司 | Short bracket |
-
2001
- 2001-07-18 CN CN01248721U patent/CN2493176Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1832710B (en) * | 2003-11-10 | 2010-04-14 | 夸利梅德创新医药产品有限公司 | Stent |
| CN100349559C (en) * | 2004-11-17 | 2007-11-21 | 大连大学 | Flange plate type cylinder network holder isodiametric contractor |
| CN106983562A (en) * | 2016-03-23 | 2017-07-28 | 卢锦山 | One kind is blockaded for ureter subtracts a device with traction force |
| CN110248620A (en) * | 2017-02-02 | 2019-09-17 | C·R·巴德股份有限公司 | Short bracket |
| CN108969165A (en) * | 2018-06-13 | 2018-12-11 | 哈尔滨工业大学 | A kind of 4D printing shape memory polymer composite material trachea bracket and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |