CN102772231A - Novel snare for interventional therapy of congenital heart diseases - Google Patents
Novel snare for interventional therapy of congenital heart diseases Download PDFInfo
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- CN102772231A CN102772231A CN201210260701XA CN201210260701A CN102772231A CN 102772231 A CN102772231 A CN 102772231A CN 201210260701X A CN201210260701X A CN 201210260701XA CN 201210260701 A CN201210260701 A CN 201210260701A CN 102772231 A CN102772231 A CN 102772231A
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- snare
- snare ring
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- nickel
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Abstract
The invention discloses a novel snare for interventional therapy of congenital heart diseases. The novel snare comprises a snare ring, a nickel-titanium rod, a handle and a macromolecule heat shrinkable tube; the snare ring comprises a tail end extending along a direction vertical to a plane on which the snare ring is arranged; the tail end of the snare ring is fixedly connected with the bottom end of the nickel-titanium rod, and the nickel-titanium rod is vertical to the plane on which the snare ring is arranged; the snare ring is made of a nickel-titanium rope; the handle is fixed at the top end of the nickel-titanium rod; and the macromolecule heat shrinkable tube is compactly sleeved at the bottom of the nickel-titanium rod and the tail end of the snare ring. In the invention, the snare ring is made of the nickel-titanium rope formed by weaving a plurality of strands of nickel-titanium alloy wires, so that the snare ring has higher reliability compared with a snare ring made of a single strand of nickel-titanium alloy wire; meanwhile, the tip of the snare ring is softer so that unnecessary damage to the body of a human, particular to children, is not easy to produce.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, relate in particular to a kind of novel snare that is used for the congenital heart disease interventional therapy.
Background technology
In the congenital heart disease interventional therapy, use snare through regular meeting, snare can be unlikely to too sharp-pointed and the injury bodily tissue through recovering needed shape behind the tiny tube chamber simultaneously.
Mostly snare ring in the existing snare is that rustless steel is made, and in order to guarantee reproducibility, material is general hard partially, and when seeing conduit off, the heart inner tissue of stabbing easily causes unnecessary damages.
There is snare to adopt now on the market and twines the snare ring that gold-plated tungsten wire is processed outward by single nitinol alloy wire; Because nitinol alloy wire is softer; Be not easy the patient is caused unnecessary damage; But because single nitinol alloy wire deflection in the course of processing is bigger, cause the situation of nitinol alloy wire fracture easily, cause snare to use.
Summary of the invention
The object of the invention; A kind of novel snare that is used for the congenital heart disease interventional therapy is provided in order to address the above problem exactly; The material of this novel snare centre circle collar adopts the NiTi rope that is formed by the braiding of multiply nitinol alloy wire, has higher reliability.
The objective of the invention is to realize like this:
A kind of novel snare that is used for the congenital heart disease interventional therapy of the present invention comprises snare ring, NiTi bar, handle and macromolecule heat-shrink tube, wherein,
Said snare ring comprises along belong to the tail end that planar direction is extended perpendicular to this snare ring; The tail end of said snare ring is fixedly connected with the bottom of said NiTi bar; And said NiTi bar is perpendicular to the plane at said snare ring place, and said snare ring is made by the NiTi rope;
Said handle is fixed on the top of said NiTi bar;
Said macromolecule heat-shrink tube closely is sheathed on the tail end of bottom and said snare ring of said NiTi bar.
Above-mentioned a kind of novel snare that is used for the congenital heart disease interventional therapy, wherein, said NiTi rope is formed by the braiding of multiply nitinol alloy wire.
Above-mentioned a kind of novel snare that is used for the congenital heart disease interventional therapy, wherein, said NiTi rope is formed by 7 to 19 bursts of nitinol alloy wire braidings.
Above-mentioned a kind of novel snare that is used for the congenital heart disease interventional therapy, wherein, said macromolecule heat-shrink tube is processed by the macromolecular material that can directly contact blood of human body.
Above-mentioned a kind of novel snare that is used for the congenital heart disease interventional therapy, wherein, said macromolecule heat-shrink tube is processed by polyethylene or politef.
Above-mentioned a kind of novel snare that is used for the congenital heart disease interventional therapy, wherein, said handle is processed by the macromolecular material that can directly contact human body.
Above-mentioned a kind of novel snare that is used for the congenital heart disease interventional therapy, wherein, said handle is processed by nylon or polyethylene.
The present invention compared with prior art has following beneficial effect:
1. the centre circle collar of the present invention adopts the NiTi rope that is formed by the braiding of multiply nitinol alloy wire to be made; Has ability through superfine ductule; Can still can not guarantee after through tubule, to return to original shape simultaneously because of cause distortion through conduit;
2. the snare of making compared to the sub-thread nitinol alloy wire, the present invention has higher reliability, and nitinol alloy wire has than the better biocompatibility of gold-plated tungsten wire, is difficult for human body generation anaphylaxis;
3. the snare of making compared to the sub-thread nitinol alloy wire, the tip of the centre circle collar of the present invention are soft more, are difficult for human body is caused more unnecessary damages, particularly child.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the side view of the centre circle collar of the present invention.
The specific embodiment
To combine accompanying drawing below, the present invention will be described further.
See also Fig. 1 and Fig. 2, the novel snare that the present invention is used for the congenital heart disease interventional therapy has been shown among the figure, this novel snare comprises snare ring 1, NiTi bar 2, handle 3 and macromolecule heat-shrink tube 4.
Handle 3 is fixed on the top of NiTi bar 3, and handle 3 is processed by the macromolecular material that can directly contact human body, can select nylon or polyethylene for use.
Macromolecule heat-shrink tube 4 closely is sheathed on the tail end 11 of bottom and snare ring 1 of NiTi bar 2; Macromolecule heat-shrink tube 4 is processed by the macromolecular material that can directly contact blood of human body; Can select polyethylene or politef for use, its suit technology is: macromolecule heat-shrink tube 4 is enclosed within on the straight-bar that the tail end 11 of NiTi bar 2 and snare ring 1 forms, heats with hot-air blower; And change slow past post-tensioning, make the macromolecule heat-shrink tube 4 tight clothes that must paste on straight-bar.
The centre circle collar 1 of the present invention adopts the NiTi rope that is formed by the braiding of multiply nitinol alloy wire to be made; Snare compared to the making of sub-thread nitinol alloy wire; Have higher reliability, simultaneously, tip 12 (see figure 2)s of snare ring 1 are also soft more; Be difficult for human body is caused more unnecessary damages, particularly child.
Above embodiment only supplies to explain the present invention's usefulness; But not limitation of the present invention; The technical staff in relevant technologies field under the situation that does not break away from the spirit and scope of the present invention, can also make various conversion or modification; Therefore all technical schemes that are equal to also should belong to category of the present invention, should be limited each claim.
Claims (7)
1. a novel snare that is used for the congenital heart disease interventional therapy is characterized in that, said novel snare comprises snare ring, NiTi bar, handle and macromolecule heat-shrink tube, wherein,
Said snare ring comprises along belong to the tail end that planar direction is extended perpendicular to this snare ring; The tail end of said snare ring is fixedly connected with the bottom of said NiTi bar; And said NiTi bar is perpendicular to the plane at said snare ring place, and said snare ring is made by the NiTi rope;
Said handle is fixed on the top of said NiTi bar;
Said macromolecule heat-shrink tube closely is sheathed on the tail end of bottom and said snare ring of said NiTi bar.
2. a kind of novel snare that is used for the congenital heart disease interventional therapy as claimed in claim 1 is characterized in that, said NiTi rope is formed by the braiding of multiply nitinol alloy wire.
3. a kind of novel snare that is used for the congenital heart disease interventional therapy as claimed in claim 2 is characterized in that, said NiTi rope is formed by 7 to 19 bursts of nitinol alloy wire braidings.
4. like each described a kind of novel snare that is used for the congenital heart disease interventional therapy of claim 1 to 3, it is characterized in that said macromolecule heat-shrink tube is processed by the macromolecular material that can directly contact blood of human body.
5. a kind of novel snare that is used for the congenital heart disease interventional therapy as claimed in claim 4 is characterized in that said macromolecule heat-shrink tube is processed by polyethylene or politef.
6. like each described a kind of novel snare that is used for the congenital heart disease interventional therapy of claim 1 to 3, it is characterized in that said handle is processed by the macromolecular material that can directly contact human body.
7. a kind of novel snare that is used for the congenital heart disease interventional therapy as claimed in claim 6 is characterized in that said handle is processed by nylon or polyethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210260701XA CN102772231A (en) | 2012-07-25 | 2012-07-25 | Novel snare for interventional therapy of congenital heart diseases |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210260701XA CN102772231A (en) | 2012-07-25 | 2012-07-25 | Novel snare for interventional therapy of congenital heart diseases |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102772231A true CN102772231A (en) | 2012-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210260701XA Pending CN102772231A (en) | 2012-07-25 | 2012-07-25 | Novel snare for interventional therapy of congenital heart diseases |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103741312A (en) * | 2013-12-31 | 2014-04-23 | 深圳迈普再生医学科技有限公司 | Medical braided wire and preparation method as well as product thereof |
| CN106963452A (en) * | 2017-04-01 | 2017-07-21 | 上海心玮医疗科技有限公司 | A kind of snare |
Citations (6)
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| JPH05161655A (en) * | 1991-12-19 | 1993-06-29 | Olympus Optical Co Ltd | Means for fixing abdominal wall of organ |
| US20050159648A1 (en) * | 2004-01-21 | 2005-07-21 | Scimed Life Systems, Inc. | Endoscopic device having spray mechanism and related methods of use |
| CN101234047A (en) * | 2008-01-14 | 2008-08-06 | 明一生物科技（上海）有限公司 | Pushing sheath tube for intracranial self-expanding bracket conveyer |
| CN201409999Y (en) * | 2009-06-18 | 2010-02-24 | 刘文修 | Congenital heart disease occluder |
| US20120165827A1 (en) * | 2010-12-13 | 2012-06-28 | Alexander Khairkhahan | Pacemaker Retrieval Systems and Methods |
| CN202776398U (en) * | 2012-07-25 | 2013-03-13 | 上海形状记忆合金材料有限公司 | Novel loop apparatus for interventional treatment of congenital heart diseases |
-
2012
- 2012-07-25 CN CN201210260701XA patent/CN102772231A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05161655A (en) * | 1991-12-19 | 1993-06-29 | Olympus Optical Co Ltd | Means for fixing abdominal wall of organ |
| US20050159648A1 (en) * | 2004-01-21 | 2005-07-21 | Scimed Life Systems, Inc. | Endoscopic device having spray mechanism and related methods of use |
| CN101234047A (en) * | 2008-01-14 | 2008-08-06 | 明一生物科技（上海）有限公司 | Pushing sheath tube for intracranial self-expanding bracket conveyer |
| CN201409999Y (en) * | 2009-06-18 | 2010-02-24 | 刘文修 | Congenital heart disease occluder |
| US20120165827A1 (en) * | 2010-12-13 | 2012-06-28 | Alexander Khairkhahan | Pacemaker Retrieval Systems and Methods |
| CN202776398U (en) * | 2012-07-25 | 2013-03-13 | 上海形状记忆合金材料有限公司 | Novel loop apparatus for interventional treatment of congenital heart diseases |
Non-Patent Citations (1)
| Title |
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| 丁仲如，秦永文: "国产镍钛合金材料热氧化表面改性后组织相容性评价", 《第二军医大学学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103741312A (en) * | 2013-12-31 | 2014-04-23 | 深圳迈普再生医学科技有限公司 | Medical braided wire and preparation method as well as product thereof |
| CN106963452A (en) * | 2017-04-01 | 2017-07-21 | 上海心玮医疗科技有限公司 | A kind of snare |
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Application publication date: 20121114 |