CN203763235U - Disposable snare - Google Patents
Disposable snare Download PDFInfo
- Publication number
- CN203763235U CN203763235U CN201420034729.6U CN201420034729U CN203763235U CN 203763235 U CN203763235 U CN 203763235U CN 201420034729 U CN201420034729 U CN 201420034729U CN 203763235 U CN203763235 U CN 203763235U
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- CN
- China
- Prior art keywords
- snare
- tube
- knob
- conductive filament
- conductive wire
- 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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- Surgical Instruments (AREA)
Abstract
The utility model discloses a disposable snare. The disposable snare is applied to the field of medical instruments and comprises a handle and a conductive wire. The front end of the conductive wire is connected with a snare body, the rear end of the conductive wire abuts against a slip ring, and an insulation tube and a protection sleeve are arranged on the periphery of the conductive wire. The insulation tube and the protection sleeve are fixed to the front end of the handle at the horn mouth expansion portion through nuts. A boosting tube is arranged between the conductive wire and the insulation tube and connected to the conductive wire in a pressing mode. The boosting tube and the conductive wire penetrate through a rotary knob and an electrode holder. The rotary knob is located in a rotary knob base, and an elastic structure matched with the rotary knob is arranged in the rotary knob base. According to the disposable snare, in the actual use process, the handle does not need to be rotated, twining of the conductive wire is avoided, operation is simple, use is convenient, doctors can carry out operations efficiently in the actual operation process, the operation time can be shortened, and pains of patients can be relieved.
Description
Technical field
This utility model relates to technical field of medical instruments, especially a kind of disposable use snare.
Background technology
Commonly use snare at medical field back warp, but snare in use needs to adjust the direction of snare, so that it accurately navigates on polyp, on market, existing snare is roughly divided into two kinds: one is non-rotatable snare, and another kind is rotatable snare.Non-rotatable snare cannot be realized spinfunction, finds that in operation orientation is not right, can only extract and reinsert endoscope, operates more consuming time; The rotation position of rotatable snare can be because must turning handle and make troubles, the even conductive filament phenomenon that winds the line, and need bimanualness, very inconvenient.
Utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, and provide a kind of and just can realize snare rotation by turning knob, and the disposable use snare that in use can locate of knob.
For achieving the above object, the technical solution of the utility model is: a kind of disposable use snare, comprise handle and conductive filament, described conductive filament front end connects snare, conductive filament rear end is against on slip ring, conductive filament is arranged with insulation tube and protecting pipe outward, described insulation tube and protecting pipe are fixed on handle front end at bell mouth expanding place by nut, between described conductive filament and insulation tube, be provided with boost tube, described boost tube is crimped on conductive filament, boost tube and conductive filament are through knob and electrode tip holder, described knob is positioned at knob base, in described knob base, be provided with the elastic construction coordinating with knob.
Described elastic construction comprises cover plate, the first spring and the first steel ball, on described knob excircle, is evenly distributed with circular groove, and described the first steel ball can snap in circular groove.
In described electrode tip holder, be provided with electrode, the second spring and the second steel ball, described the second steel ball props up boost tube under the effect of the second spring.
Described boost tube rear end crimping position-limiting tube, described position-limiting tube two ends prop up respectively electrode tip holder and slip ring.
Described electrode tip holder is fixed on slip ring, and described slip ring can slide on handle.
Described knob is provided with centre bore, and described centre bore is ellipticity.
The beneficial effects of the utility model are: in use without rotary handle, just can realize snare by turning knob rotates, can not cause conductive filament to be wound around, simple to operate, easy to use, doctor can high efficiency perform the operation in actual mechanical process, shorten operating time, reduce patient's misery, knob in use can be located simultaneously, can prevent that conductive filament elastic force is excessive and make knob reversion, more accurate while extracting.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the enlarged drawing at A place in Fig. 1;
Fig. 3 is the enlarged drawing at B place in Fig. 1;
Fig. 4 is the top view of knob of the present utility model.
In figure: handle 1, conductive filament 2, snare 3, insulation tube 4, protecting pipe 5, nut 6, boost tube 7, knob 8, electrode tip holder 9, electrode 10, the second spring 11, the second steel ball 12, position-limiting tube 13, knob base 14, cover plate 15, the first spring 16, the first steel ball 17, slip ring 18, centre bore 19, circular groove 20.
Detailed description of the invention
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
As shown in Figure 1 to 4, a kind of disposable use snare, comprise handle 1 and conductive filament 2, described conductive filament 2 front ends connect snare 3, conductive filament 2 rear ends are against on slip ring 18, outer insulation tube 4 and the protecting pipe 5 of being arranged with of conductive filament 2, described insulation tube 4 and protecting pipe 5 are fixed on handle 1 front end at bell mouth expanding place by nut 6, between described conductive filament 2 and insulation tube 4, be provided with boost tube 7, described boost tube 7 is crimped on conductive filament 2, boost tube 7 and conductive filament 2 are through knob 8 and electrode tip holder 9, described knob 8 is positioned at knob base 14, in described knob base 14, be provided with the elastic construction coordinating with knob 8.
Described elastic construction comprises cover plate 15, the first spring 16 and the first steel ball 17, on described knob 8 excircles, is evenly distributed with circular groove 20, and described the first steel ball 17 can snap in circular groove 20.
In described electrode tip holder 9, be provided with electrode 10, the second spring 11 and the second steel ball 12, described the second steel ball 12 props up boost tube 7 under the effect of the second spring 11.
Described boost tube 7 rear end crimping position-limiting tubes 13, described position-limiting tube 13 two ends prop up respectively electrode tip holder 9 and slip ring 18.
Described electrode tip holder 9 is fixed on slip ring 18, and described slip ring 18 can slide on handle 1.
Described knob 8 is provided with centre bore 19, and described centre bore 19 is ellipticity.
Electrode 10 of the present utility model is threaded connection to be pushed down the second spring 11, the second springs 11 and pushes down the second steel ball 12, the second steel balls 12 again and push down boost tube 7, thereby has ensured the function that electric conductivity and boost tube 7 can rotate in electrode tip holder 9.Boost tube 7 has part to be pressed into ellipticity by frock, and the centre bore 19 of knob 8 is the corresponding ellipticity of making also, and structure like this just can realize boost tube 7 and the synchronous rotation of knob 8 and boost tube 7 and can in knob 8, slide.Snare 3 is connected with conductive filament 2 by butt tube, conductive filament 2 and boost tube 7 crimping, and so structure has realized by rotating boost tube 7 and just can drive snare 3 to rotate.This product if rotary knob 8 just can realize snare 3 and rotate.
Because conductive filament 2 is own just flexible, if knob 8 cannot be located, may cause snare 3 to reverse, do not realize the angle of our anticipation, can locate and rotate freely in order to reach knob 8, therefore be provided with elastic construction on knob base 14, on knob 8 excircles, be uniformly distributed circular groove 20, according to the elastic reaction of the first spring 16, turning knob 8, the first steel balls 17 are beated in circular groove 20, while stopping operating, knob 8 just can be located, thereby realizes the locating effect of snare 3 angles.
When operation starts, snare is connected with high intensity light source by electrode 10, slip ring 18 is pulled back, position-limiting tube 13 drives boost tube 7 further to pull conductive filament 2, make in the snare 3 retraction insulation tubes 4 of front end, by the Qian of endoscope road, the front end of snare is sent in tract, arrive after polyp locations, slip ring 18 is pushed ahead, conductive filament 2 moves forward that to make the snare 3 of front end expose insulation tube 4 outer and become round by self elastic return, by turning knob 8, make snare 3 direction of rotation, make snare 3 entangle polyp or tumor, afterwards slip ring 18 is slowly pulled back, snare 3 is retracted in insulation tube 4 gradually, snare 3 dwindles and gradually by high-frequency electrical calcination with strangle except polyp or tumor.Operation finishes rear power-off, and snare is pulled away to focus.
Claims (6)
1. a disposable use snare, comprise handle (1) and conductive filament (2), described conductive filament (2) front end connects snare (3), conductive filament (2) rear end is against on slip ring (18), outer insulation tube (4) and the protecting pipe (5) of being arranged with of conductive filament (2), described insulation tube (4) and protecting pipe (5) are fixed on handle (1) front end at bell mouth expanding place by nut (6), it is characterized in that: between described conductive filament (2) and insulation tube (4), be provided with boost tube (7), described boost tube (7) is crimped on conductive filament (2), boost tube (7) and conductive filament (2) are through knob (8) and electrode tip holder (9), described knob (8) is positioned at knob base (14), in described knob base (14), be provided with the elastic construction coordinating with knob (8).
2. the disposable use snare of one as claimed in claim 1, it is characterized in that: described elastic construction comprises cover plate (15), the first spring (16) and the first steel ball (17), on described knob (8) excircle, be evenly distributed with circular groove (20), described the first steel ball (17) can snap in circular groove (20).
3. the disposable use snare of one as claimed in claim 1, it is characterized in that: in described electrode tip holder (9), be provided with electrode (10), the second spring (11) and the second steel ball (12), described the second steel ball (12) props up boost tube (7) under the effect of the second spring (11).
4. the disposable use snare of one as claimed in claim 1, is characterized in that: described boost tube (7) rear end crimping position-limiting tube (13), described position-limiting tube (13) two ends prop up respectively electrode tip holder (9) and slip ring (18).
5. the disposable use snare of one as claimed in claim 1, is characterized in that: it is upper that described electrode tip holder (9) is fixed on slip ring (18), and described slip ring (18) can be in the upper slip of handle (1).
6. the disposable use snare of one as claimed in claim 1, is characterized in that: described knob (8) is provided with centre bore (19), described centre bore (19) is ellipticity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420034729.6U CN203763235U (en) | 2014-01-21 | 2014-01-21 | Disposable snare |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420034729.6U CN203763235U (en) | 2014-01-21 | 2014-01-21 | Disposable snare |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203763235U true CN203763235U (en) | 2014-08-13 |
Family
ID=51280492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420034729.6U Expired - Fee Related CN203763235U (en) | 2014-01-21 | 2014-01-21 | Disposable snare |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203763235U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104622566A (en) * | 2015-01-23 | 2015-05-20 | 诸暨市鹏天医疗器械有限公司 | Electric snare allowing water injection |
| CN107028637A (en) * | 2017-05-15 | 2017-08-11 | 何利 | A kind of method that haemorrhoids ligation apparatus and its set prick hemorrhoid |
| CN109953820A (en) * | 2017-12-25 | 2019-07-02 | 杭州安杰思医学科技有限公司 | Electrosurgical instrument manipulation device |
| WO2019128955A1 (en) * | 2017-12-25 | 2019-07-04 | 杭州安杰思医学科技有限公司 | Device for operating electrosurgical instrument |
-
2014
- 2014-01-21 CN CN201420034729.6U patent/CN203763235U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104622566A (en) * | 2015-01-23 | 2015-05-20 | 诸暨市鹏天医疗器械有限公司 | Electric snare allowing water injection |
| CN107028637A (en) * | 2017-05-15 | 2017-08-11 | 何利 | A kind of method that haemorrhoids ligation apparatus and its set prick hemorrhoid |
| CN109953820A (en) * | 2017-12-25 | 2019-07-02 | 杭州安杰思医学科技有限公司 | Electrosurgical instrument manipulation device |
| WO2019128955A1 (en) * | 2017-12-25 | 2019-07-04 | 杭州安杰思医学科技有限公司 | Device for operating electrosurgical instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20150121 |
|
| EXPY | Termination of patent right or utility model |