CN106963452A - A kind of snare - Google Patents
A kind of snare Download PDFInfo
- Publication number
- CN106963452A CN106963452A CN201710217794.0A CN201710217794A CN106963452A CN 106963452 A CN106963452 A CN 106963452A CN 201710217794 A CN201710217794 A CN 201710217794A CN 106963452 A CN106963452 A CN 106963452A
- Authority
- CN
- China
- Prior art keywords
- snare
- handle
- ring
- distal end
- silk
- 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.)
- Pending
Links
- 229910001000 nickel titanium Inorganic materials 0.000 claims abstract description 33
- 239000002861 polymer material Substances 0.000 claims description 6
- -1 polytetrafluoroethylene Polymers 0.000 claims description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- 239000004425 Makrolon Substances 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 3
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 claims description 3
- 229920000515 polycarbonate Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 2
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 claims description 2
- 229910000521 B alloy Inorganic materials 0.000 claims 1
- 229920001577 copolymer Polymers 0.000 claims 1
- 208000002330 Congenital Heart Defects Diseases 0.000 abstract description 6
- 208000028831 congenital heart disease Diseases 0.000 abstract description 6
- 238000013152 interventional procedure Methods 0.000 abstract description 5
- 210000005248 left atrial appendage Anatomy 0.000 abstract description 5
- 229910045601 alloy Inorganic materials 0.000 abstract description 4
- 239000000956 alloy Substances 0.000 abstract description 4
- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical compound [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 abstract description 4
- 239000007787 solid Substances 0.000 abstract description 3
- 229910000679 solder Inorganic materials 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920002521 macromolecule Polymers 0.000 description 3
- 239000004812 Fluorinated ethylene propylene Substances 0.000 description 2
- 206010052428 Wound Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 2
- 238000001727 in vivo Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920009441 perflouroethylene propylene Polymers 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000009711 regulatory function Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/221—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
- A61B17/12122—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder within the heart
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/22031—Gripping instruments, e.g. forceps, for removing or smashing calculi
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/50—Instruments, other than pincettes or toothpicks, for removing foreign bodies from the human body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00743—Type of operation; Specification of treatment sites
- A61B2017/00796—Breast surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
- A61B2017/00867—Material properties shape memory effect
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/22031—Gripping instruments, e.g. forceps, for removing or smashing calculi
- A61B2017/22035—Gripping instruments, e.g. forceps, for removing or smashing calculi for retrieving or repositioning foreign objects
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/221—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions
- A61B2017/2212—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions having a closed distal end, e.g. a loop
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Molecular Biology (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Vascular Medicine (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Cardiology (AREA)
- Reproductive Health (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a kind of snare, including：Snare ring, regulation silk, NiTi pipe, heat-shrink tube and handle.Its ring of being trapped is fixedly connected with NiTi pipe, and heat-shrink tube tight collapse is on snare ring and NiTi pipe, and snare ring distal end and regulation silk distal end are fixed, and regulation silk is penetrated to be connected inside NiTi pipe with handle draw ring.NiTi pipe is connected with handle.It is in half arc to adjust silk to stretch out NiTi tube portion pre-setting.Snare ring and regulation silk are constituted by nitinol alloy wire, with strong shape retentivity and stable intensity, and can pass through superfine conduit.Adjust silk and snare ring distal end is fixed, near-end is fixed with handle draw ring, using cooperatively adjustable snare ring by handle and handle draw ring brings it about deformation, to facilitate intracardiac crawl foreign matter or plugging device；Half arc of regulation silk distal end can provide the solid space needed for capture foreign matter, improve congenital heart disease interventional procedure or left atrial appendage occlusion art and be trapped security that device uses, fastness and handling, shorten operating time.
Description
Technical field
The present invention relates to technical field of medical instruments, more particularly to a kind of snare in PCI field.
Background technology
The operation of congenital heart disease intervention in recent years and percutaneous left atrial appendage occlusion art technology are progressively ripe, and its wound is small and effect is good
Good, clinical practice obtains Rapid Popularization.Snare because its can in tube chamber by and with shape retentivity, in left auricle of heart envelope
Often used in stifled art and congenital heart disease intervention operation.
Existing snare is not handling good enough during Clinical practice, is difficult regulation snare form to be operated
Surgery is completed, endocardial tissue is easily damaged.And in the market snare is generally single ring architecture, capture different in interventional procedure
Thing is easy to fall off, and fastness and security are not enough.
Therefore, those skilled in the art are directed to developing a kind of snare, to improve handling and peace during crawl foreign matter
Quan Xing.
The content of the invention
It is a primary object of the present invention to provide the snare used in a kind of plugging device, to solve the above problems, with
The problem of overcoming traditional snare crawl foreign matter manipulation and not good security.
To reach above-mentioned purpose, the technical scheme that the present invention takes is：A kind of snare with regulatory function, bag are provided
Include：Snare ring, regulation silk, NiTi pipe and handle.Its ring of being trapped is connected proximally by NiTi pipe with handle, snare ring it is remote
Hold and be connected with adjusting the distal end of silk, the near-end of regulation silk may pass through NiTi pipe.
Preferably, handle also includes handle draw ring, and the near-end of regulation silk is connected through NiTi pipe with handle draw ring.
In use, fixed handle, drawing-off handle draw ring can adjust snare shape in heart to snare, be easy to
Catch foreign matter or plugging device.Handle and thereon handle draw ring shorten operation with the use of snare service efficiency is greatly improved
Time.
Preferably, snare ring and regulation silk are constituted by nitinol alloy wire, with extremely strong shape retentivity and stably
Intensity, and superfine conduit can be passed through.
Preferably, snare ring is rounded, distally does smooth sphere processing.
Preferably, the distal end connection of the near-end of snare ring and NiTi pipe.
Preferably, the distal end of the near-end of snare ring and NiTi pipe is connected by Laser Welding mode, and junction forms solder joint.
Preferably, the snare also includes heat-shrink tube, and the heat-shrink tube is set in the way of tightening on the solder joint, butt welding point
Protected.
Preferably, heat-shrink tube is made up of high polymer material polytetrafluoroethylene (PTFE), fluorinated ethylene propylene copolymer and polyethylene etc..
Preferably, the distal end of the collar and the silk distal end of regulation are connected and fixed, and spherical smooth processing is done in junction, keeps away
Exempt from snare and stab inwall during use in heart in order to avoid causing secondary injury.
Preferably, stretching NiTi pipeline section in regulation silk distal end does thermal finalization processing, and pre-setting is captured in vivo into semicircular arc
Enough solid spaces are made it have during foreign matter, are easy to foreign matter being fixedly secured in snare ring.
Preferably, using cooperatively by handle and handle draw ring, controllable adjustable silk makes snare ring produce deformation to clamp
Foreign matter, while this design increases securely property, facilitates doctor to operate, shortens in congenital heart disease interventional procedure or left atrial appendage occlusion art
Required time during using snare.
It is preferred that, handle and the handle draw ring is by can be common with medical grade acrylonitrile-styrene-butadiene of human contact
The one or more high polymer material such as polymers, makrolon is made.
Compared with prior art, the invention has the advantages that：
The centre circle collar of the present invention and regulation silk are constituted by nitinol alloy wire, with extremely strong shape retentivity and stably
Intensity.Adjust silk and snare distal end is fixed, near-end is fixed with handle draw ring, and snare ring is can adjust by regulation handle draw ring
Shape, it is convenient that foreign matter or plugging device are captured in heart, effectively solve crawl foreign matter fastness difference or plugging device release displacement
The problem of crawl is caught back is difficult when afterwards.Add safety when snare is used in congenital heart disease interventional procedure and left atrial appendage occlusion art
Property and handling, is substantially shorter operating time.
The technique effect of the design of the present invention, concrete structure and generation is described further below with reference to accompanying drawing, with
It is fully understood from the purpose of the present invention, feature and effect.
Brief description of the drawings
Fig. 1 is the schematic diagram of the snare of a preferred embodiment of the present invention；
Fig. 2 is the distal structure schematic diagram of the snare of a preferred embodiment of the present invention.
Embodiment
Describe to be used to disclose the present invention below so that those skilled in the art can realize the present invention.It is excellent in describing below
Embodiment is selected to be only used as citing, it may occur to persons skilled in the art that other obvious modifications.
In following examples, near-end refers to, close to one end of operator, distally refer to one end away from operator.
A kind of new snare as shown in Figure 1, including handle 1, snare ring 2, NiTi pipe 3, regulation silk 4 and heat-shrink tube 5.
Wherein, NiTi pipe 3 is connected with handle 1, and snare ring 2 is connected proximally by NiTi pipe 3 with handle 1.Have in NiTi pipe 3 and handle 1
There is cavity, regulation silk 4 is penetrated by the distal end of cavity from NiTi pipe 3, and passes through handle 1.Handle 1 includes being located at the rear portion of handle 1
Handle draw ring 101.The near-end of regulation silk 4 is connected after passing through handle 1 with handle draw ring 101, and the distal end of regulation silk 4 is passed
Weld together after NiTi pipe 3 with the remote of snare ring 2.
Snare ring 2 is made up of nitinol alloy wire, in the case where being acted on without external force, generally circular.Handle 1 and handle draw ring 101
By can be with one or more macromolecule materials such as medical grade acrylonitrile-butadiene-styrene copolymer, the makrolon of human contact
Material is made.
In use, fixed handle 1, drawing-off handle draw ring 101 is adjusted snare so as to pull regulation silk 4
The shape in heart of snare ring 2, is easy to catch foreign matter or plugging device.Handle 1 and thereon handle draw ring 101 are used cooperatively can be significantly
Snare service efficiency is improved, shortens operating time.
The near-end of snare ring 2 and the distal end of NiTi pipe 3 are connected by Laser Welding mode, and junction forms solder joint, macromolecule pyrocondensation
Pipe 5 is set in the way of tightening on the solder joint, and butt welding point is protected, and the optional high polymer material of macromolecule heat-shrink tube 5 is
Polytetrafluoroethylene (PTFE), fluorinated ethylene propylene copolymer and polyethylene.
As shown in Fig. 2 in the snare of the present embodiment, the distal end of snare ring 2 is fastened on one with regulation silk 4 distal end
Rise, spherical smooth processing is done in junction 201, it is to avoid snare stabs inwall in order to avoid causing secondary wound in heart during use
Evil.
Regulation silk 4 distally stretches out NiTi pipeline section and does thermal finalization processing, and pre-setting is into semicircular arc, when capturing foreign matter in vivo
Enough solid spaces are made it have, are easy to foreign matter being fixedly secured in snare ring, as shown in Figure 1.
Used cooperatively simultaneously by handle 1 and handle draw ring 101, controlling to adjust silk 4 makes the generation deformation clamping of snare ring 2 different
Thing, while this design increases securely property, facilitates doctor to operate, shorten makes in congenital heart disease interventional procedure or left atrial appendage occlusion art
Required time during with snare.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of this area
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and that described in above-described embodiment and specification is the present invention
Principle, various changes and modifications of the present invention are possible without departing from the spirit and scope of the present invention, these change and
Improvement is both fallen within the range of claimed invention.The protection domain of application claims by appended claims and its
Equivalent is defined.
Claims (10)
1. a kind of snare, it is characterised in that including：Snare ring, regulation silk, NiTi pipe and handle, the NiTi pipe with it is described
Handle is connected, and the snare ring is connected proximally by the NiTi pipe with the handle, the distal end of the snare ring with it is described
The distal end connection of silk is adjusted, the regulation silk passes through the NiTi pipe and the handle.
2. snare according to claim 1, it is characterised in that also including heat-shrink tube, the near-end of the snare ring and institute
The distal end connection of NiTi pipe is stated, the heat-shrink tube is set on tie point in the way of tightening.
3. a kind of snare according to claim 2, it is characterised in that the heat-shrink tube is made up of high polymer material.
4. a kind of snare according to claim 3, it is characterised in that the high polymer material is polytetrafluoroethylene (PTFE), entirely
Fluoroethylene-propylene copolymer or polyethylene.
5. a kind of snare according to claim 1, it is characterised in that the handle also includes handle draw ring, the tune
Save silk and pass through the NiTi pipe and the handle, and be connected with the handle draw ring.
6. a kind of snare according to claim 5, it is characterised in that the handle and the handle draw ring are by medical grade
The one or more high polymer material such as acrylonitrile-butadiene-styrene copolymer, makrolon is made.
7. a kind of snare according to claim 1, it is characterised in that the snare ring and regulation silk are by NiTi
B alloy wire is constituted.
8. a kind of snare according to claim 1, it is characterised in that the snare ring is rounded.
9. a kind of snare according to claim 1, it is characterised in that the distal end of the round collar and the regulation silk
The junction of distal end, does spherical smooth processing.
10. a kind of snare according to claim 1, it is characterised in that NiTi pipe is stretched out in the distal end of the regulation silk
One section is done thermal finalization processing, and pre-setting is into semicircular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710217794.0A CN106963452A (en) | 2017-04-01 | 2017-04-01 | A kind of snare |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710217794.0A CN106963452A (en) | 2017-04-01 | 2017-04-01 | A kind of snare |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106963452A true CN106963452A (en) | 2017-07-21 |
Family
ID=59336792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710217794.0A Pending CN106963452A (en) | 2017-04-01 | 2017-04-01 | A kind of snare |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106963452A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114699626A (en) * | 2022-06-02 | 2022-07-05 | 浙江大学医学院附属第一医院 | Mouth and nose conversion device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102772231A (en) * | 2012-07-25 | 2012-11-14 | 上海形状记忆合金材料有限公司 | Novel snare for interventional therapy of congenital heart diseases |
| US20130018387A1 (en) * | 2011-07-11 | 2013-01-17 | Valery Diamant | Apparatus for entrapping and extracting objects from body cavities |
| CN103142304A (en) * | 2012-11-13 | 2013-06-12 | 陈绍良 | Multistage synchronous pulmonary artery radiofrequency ablation catheter |
| CN105286991A (en) * | 2015-10-13 | 2016-02-03 | 南方医科大学 | Electric snare |
| CN205054296U (en) * | 2015-09-29 | 2016-03-02 | 上海形状记忆合金材料有限公司 | Plugging device distal end conveying system |
-
2017
- 2017-04-01 CN CN201710217794.0A patent/CN106963452A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130018387A1 (en) * | 2011-07-11 | 2013-01-17 | Valery Diamant | Apparatus for entrapping and extracting objects from body cavities |
| CN102772231A (en) * | 2012-07-25 | 2012-11-14 | 上海形状记忆合金材料有限公司 | Novel snare for interventional therapy of congenital heart diseases |
| CN103142304A (en) * | 2012-11-13 | 2013-06-12 | 陈绍良 | Multistage synchronous pulmonary artery radiofrequency ablation catheter |
| CN205054296U (en) * | 2015-09-29 | 2016-03-02 | 上海形状记忆合金材料有限公司 | Plugging device distal end conveying system |
| CN105286991A (en) * | 2015-10-13 | 2016-02-03 | 南方医科大学 | Electric snare |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114699626A (en) * | 2022-06-02 | 2022-07-05 | 浙江大学医学院附属第一医院 | Mouth and nose conversion device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 201201 Room 201, building 4, No. 590, Ruiqing Road, Zhangjiang High Tech Industry East District, Pudong New Area, Shanghai Applicant after: Shanghai Xinwei Medical Technology Co.,Ltd. Address before: Room 503, 5 / F, building 6, No. 528, Ruiqing Road, Zhangjiang hi tech industry east district, Pudong New Area, Shanghai 201201 Applicant before: SHANGHAI HEARTCARE MEDICAL TECHNOLOGY Co.,Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170721 |