CN209529317U - Asymmetric tumour electricity snare under a kind of scope - Google Patents
Asymmetric tumour electricity snare under a kind of scope Download PDFInfo
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- CN209529317U CN209529317U CN201820017982.9U CN201820017982U CN209529317U CN 209529317 U CN209529317 U CN 209529317U CN 201820017982 U CN201820017982 U CN 201820017982U CN 209529317 U CN209529317 U CN 209529317U
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- tumour
- asymmetric
- scope
- superelastic alloy
- outer sheath
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Abstract
The utility model discloses asymmetric tumour electricity snares under a kind of scope, belong to the field of medical instrument technology, the connection pedestal and handle of outer sheath proximal end are connected to including outer sheath and with this, it is divided into two inside outer sheath, it include biasing head and superelastic alloy silk in one, biasing head is located at outer sheath far distance port side, superelastic alloy silk distal end is fixedly connected on biasing head, it include suction pipe and the suction disk positioned at suction pipe distal end in another, connection pedestal is included in the pusher of suction pipe connection, and the electrode column pair being connect with elastic alloy wire, battery is successively arranged inside handle from bottom to up, Miniature negative pressure pump and radio-frequency generator, Miniature negative pressure pump and radio-frequency generator are connected with the proximal end of suction pipe and superelastic alloy silk respectively.In short, the utility model has many advantages, such as that lasso success rate is high and excision is clean.
Description
Technical field
The utility model belongs to the field of medical instrument technology, and in particular to asymmetric tumour electric circle set under a kind of scope
Device.
Background technique
Electric snare is common a kind of for cutting off the device of polyp and tumour in the various lumens of human body in surgical operation
Tool.Electric snare reaches lesions position via endoscope path way in operation, is entangled by the lasso of electric snare end to be cut off
High-frequency current is connected after polyp or tumour, the group of lasso contact generates heat under the action of being woven in high-frequency current, tissue is made to gasify
It decomposes to achieve the purpose that cutting.Since the heat that the tissue of lasso contact generates can make neighbouring tissue coagulation simultaneously, because
This electric circle set device has the advantages that stop blooding while cutting.
How fast and accurately to entangle polyp or tumour to be cut off in pipe (such as bronchus) is electric snare hand
A technological difficulties in art.Its lasso dehisces to face tube wall when electric snare enters in pipe, some smaller
Polyp or tumour be generally radially grown on duct wall, lasso is easy to be entangled.But some biggish polyps or swollen
Tumor is often grown, lasso is then difficult even be entangled axially along the pipe due to being limited by opposing pipe wall.
Notification number discloses a kind of to be heated using electric current is passed through for the utility application of CN105286991A
The mode of tissue cuts the surgical instruments of tissue, and specially a kind of electric snare, which includes sequentially connected
Control handle and flexible sheath, be equipped with control steel wire in the flexibility sheath, one of the control steel wire be located at control hand
Electrode on the sliding handle of handle is connected, and other end is equipped with a lasso with seeker and extends to the distal end of flexible sheath；It is special
Sign is, is also equipped with a control cord in the flexibility sheath, one of the control cord is pierced by by control handle side, another
Head is connected on the seeker of lasso.Electric circle set device of the present invention has structure simple, and lasso opening direction is easily controllable
The advantages of, suitable for cutting off polyp or tumour along pipeline axial growth.However this electric snare is in extension and contraction control steel wire
It is not easy to control, and stretched out when stretching out flexibility sheath to be symmetrical, blind area and obstruction area are more, and the success rate of snare is lower, and
And the gap between narrow conduit, tumour and normal tissue is small, and is difficult to snare success.Even if in addition, snare success after,
Since tumour may move in cutting process, rope is not easy to completely attach to tumour root, is also easy for causing cutting not
Complete technical problem.
Utility model content
Against the above technical problems, the utility model provides asymmetric tumour electricity snare under a kind of scope.
The technical solution of the utility model are as follows: asymmetric tumour electricity snare under a kind of scope, including outer sheath, connection
Pedestal and handle, the left end of the connection pedestal and the proximal end horizontal connection of the outer sheath, connect the right end of pedestal with it is described
The upper end of handle vertically connects, and is divided into inner cavity one and inner cavity two inside the outer sheath up and down, includes biasing in the inner cavity one
Head and superelastic alloy silk, the biasing head are located at the distal end of inner cavity one and close to outer sheath upper inside walls, and the super-elasticity is closed
The distal end of spun gold is fixedly connected on biasing head, includes suction pipe and suction disk in the inner cavity two, the suction disk is connected to
The distal end of the suction pipe, the connection pedestal include pusher and electrode column pair, and one of the pusher is fixedly connected on
On suction pipe, other end is slidably connected through the limiting slot for connecting pedestal lower wall, pole pair with superelastic alloy silk, super-elasticity
The proximal end of alloy wire is successively arranged battery, Miniature negative pressure pump inside the hole for connecting pedestal upper side wall, handle from bottom to up
And radio-frequency generator, the Miniature negative pressure pump and radio-frequency generator pass through conducting wire and battery electric connection respectively, miniature negative
Press pump is also connected with the proximal end of suction pipe, and radio-frequency generator is also with electrode column to electric connection.
Further, the superelastic alloy silk proximally by telescoping tube is connected with pull ring, the pull ring and telescoping tube
To be fixedly connected, telescoping tube is convenient for push superelastic alloy silk, and pull ring is convenient for drawing superelastic alloy silk.
Further, the side wall of the electrode column pair is equipped with an astragal slot, and the superelastic alloy silk folder is located at electrode
In wire casing between column pair, it can prevent superelastic alloy silk from shifting.
Further, for the electrode column to that can rotate freely, the electrode column of relative rotation is super to can effectively reduce
Frictional resistance when elastic alloy wire is pumped.
Further, the outside of the handle is equipped with switch one and switch two, and the switch one is connected to described miniature negative
Between press pump and battery, the power supply of Miniature negative pressure pump is connected by lower switch one, and then makes Minitype negative pressure pump work, the switch two
It is connected between the radio-frequency generator and battery, the power supply of radio-frequency generator is connected by lower switch two, and then make high frequency
Device work.
Further, it is respectively equipped with bayonet on the outside of the both ends of the limiting slot, for fixing pusher.
Further, the superelastic alloy silk is Nitinol, and Nitinol has super-elasticity, high mechanical strength and excellent
Good electric conductivity.
Further, the suction disk is flexible membrane, and retractable passes in and out inner cavity two.
The working method of the utility model are as follows: the utility model is mounted on scope, under the observation of scope, pushes institute
Outer sheath distal end distance objective tumour 1cm is stated, outer sheath is adjusted, makes the inner cavity one towards the head of target tumor, stir institute
Stating pusher makes it drive suction pipe protruding, and the suction disk is released the interior suction disk chamber two, opens described in opening
Guan Yi starts the Miniature negative pressure pump, is absorbed and fixed at target tumor on suction disk, by the superelastic alloy silk by squeezing
The pressure stretch draw escorts release, and the superelastic alloy wire ring set of asymmetric, corral target are released under the positioning of the biasing head
Tumour root, opens the switch two, and superelastic alloy silk, to the radio-frequency generator is connected, pulls institute using the electrode column
Pull ring contraction superelastic alloy silk to tumour cutting is stated to finish.
Compared with prior art, the utility model has the following beneficial effects: the tumour electricity snare of the utility model is by setting
Be free sucker, suction pipe and Miniature negative pressure pump, realized with this using the fixed tumour of negative-pressure adsorption, increase tumour and normal tissue it
Between gap, be convenient for snare；The utility model is equipped with biasing head in the distal end of inner cavity one, for fixing the remote of superelastic alloy silk
End makes it be pushed out inner cavity and forms asymmetric snare for the moment, the success rate of snare can be improved, wherein superelastic alloy silk
Nitinol is preferably used, Nitinol has super-elasticity, high mechanical strength and excellent electric conductivity；The utility model passes through
Superelastic alloy silk is clipped between electrode column pair and realizes steering, it is ensured that the tonicity of superelastic alloy silk, convenient for conveying, this
Outside, electrode column is to playing the role of connecting superelastic alloy silk and radio-frequency generator.In short, the utility model is designed reasonably, tool
Have the advantages that lasso success rate is high and excision is clean, suitable for cutting off polyp or tumour along pipeline axial growth.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is the cross-sectional view of electrode column pair and superelastic alloy silk of the invention.
Wherein, 1- outer sheath, the inner cavity 1a- one, the inner cavity 1b- two, 11- biasing head, 12- superelastic alloy silk, 121- are flexible
Pipe, 122- pull ring, 13- suction pipe, 14- suction disk, 2- connection pedestal, 21- pusher, 22- electrode column to, 221- wire casing, 23-
Limiting slot, 231- bayonet, 24- hole, 3- handle, 31- battery, 32- Miniature negative pressure pump, 33- radio-frequency generator, 34- switch one,
35- switch two.
Specific embodiment
It is real for convenient for the understanding to technical solutions of the utility model, 1-2 is further explained explanation with reference to the accompanying drawing
It applies example and does not constitute restriction to scope of protection of the utility model.
As shown in Figure 1, asymmetric tumour electricity snare under a kind of scope, including outer sheath 1, connection pedestal 2 and handle
3, the left end of pedestal 2 and the proximal end horizontal connection of outer sheath 1 are connected, the right end of connection pedestal 2 is vertical with the upper end of handle 3 to be connected
It connects, 1 inside of outer sheath is divided into two 1b of one 1a of inner cavity and inner cavity up and down, includes biasing head 11 and superelastic alloy silk in one 1a of inner cavity
12, wherein superelastic alloy silk 12 is Nitinol, and Nitinol has super-elasticity, high mechanical strength and excellent electric conductivity.
Biasing head 11 is located at the distal end of one 1a of inner cavity and close to 1 upper inside walls of outer sheath, and the distal end of superelastic alloy silk 12 is fixedly connected
On biasing head 11, superelastic alloy silk 12 is connected with pull ring 122, pull ring 122 and telescoping tube proximally by telescoping tube 121
121 is are fixedly connected with, and telescoping tube 121 is convenient for push superelastic alloy silk 12, and pull ring 122 is convenient for drawing superelastic alloy silk 12.
It include suction pipe 13 and suction disk 14 in two 1b of inner cavity, suction disk 14 is connected to the distal end of suction pipe 13, wherein suction disk 14 is
Flexible membrane, retractable pass in and out two 1b of inner cavity.Connecting pedestal 2 includes pusher 21 and electrode column to 22, the one of pusher 21
Head is fixedly connected on suction pipe 13, limiting slot 23 of the other end through connection 2 lower wall of pedestal, the both ends outside of limiting slot 23
It is respectively equipped with bayonet 231, for fixing pusher 21.As shown in Fig. 2, electrode column is equipped with an astragal slot 221 to 22 side wall,
Superelastic alloy silk folder 12 is located at electrode column in the wire casing 221 between 22, can prevent superelastic alloy silk 12 from shifting, pole pair
22 are slidably connected with superelastic alloy silk 12, and electrode column can be rotated freely to 22, and the electrode column of relative rotation can have to 22
Frictional resistance when the reduction superelastic alloy silk 12 of effect is pumped.The proximal end of superelastic alloy silk 12 is through 2 upside of connection pedestal
The hole 24 of wall is successively arranged battery 31, Miniature negative pressure pump 32 and radio-frequency generator 33 inside handle 3 from bottom to up, miniature negative
Press pump 32 and radio-frequency generator 33 are electrically connected by conducting wire and battery 31 respectively, and Miniature negative pressure pump 32 is also close with suction pipe 13
End is connected, and radio-frequency generator 33 is also electrically connected with electrode column to 22.The outside of handle 3 is equipped with switch 1 and switch 2 35,
Switch 1 is connected between Miniature negative pressure pump 32 and battery 31, and the power supply of Miniature negative pressure pump 32 is connected by lower switch 1, into
And Miniature negative pressure pump 32 is made to work, switch 2 35 is connected between radio-frequency generator 33 and battery 31, is connected by lower switch 2 35
The power supply of radio-frequency generator 33, and then radio-frequency generator 33 is made to work.
The working method of the present embodiment are as follows: the utility model is mounted on scope, under the observation of scope, pushes epitheca
1 distal end distance objective tumour 1cm of pipe adjusts outer sheath 1, makes one 1a of inner cavity towards the head of target tumor, stir pusher 21
Make it drive suction pipe 13 protruding, and suction disk 14 is released into interior two 1b of suction disk chamber, turn on the switch 1, starts miniature
Negative pressure pump 32 is absorbed and fixed at target tumor on suction disk 14, and superelastic alloy silk 12 is escorted by squeezing telescoping tube 121
It releases, 12 snare of superelastic alloy silk of asymmetric is released under the positioning of biasing head 11, corral target tumor root is opened
Switch 2 35, superelastic alloy silk 12 connect radio-frequency generator 33 to 22 using electrode column, and drawing pull ring 122 shrinks super-elasticity and closes
Spun gold 12 to tumour cutting finishes.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that:
It can still modify to technical solution documented by previous embodiment, or be equal to part of technical characteristic
Replacement；And these are modified or replaceed, the utility model embodiment technical solution that it does not separate the essence of the corresponding technical solution
Spirit and scope.
Claims (8)
1. asymmetric tumour electricity snare under a kind of scope, which is characterized in that including outer sheath (1), connection pedestal (2) and handle
Hand (3), it is described connection pedestal (2) left end and the outer sheath (1) proximal end horizontal connection, connect pedestal (2) right end with
The upper end of the handle (3) vertically connects, and the outer sheath (1) is internal to be divided into inner cavity one (1a) and inner cavity two (1b), institute up and down
State in inner cavity one (1a) includes that biasing head (11) and superelastic alloy silk (12), biasing head (11) are located at inner cavity one (1a)
Distal end and close outer sheath (1) upper inside walls, the distal end of the superelastic alloy silk (12), which is fixedly connected on, to be biased on head (11),
It include suction pipe (13) and suction disk (14) in the inner cavity two (1b), the suction disk (14) is connected to the suction pipe (13)
Distal end, the connection pedestal (2) includes pusher (21) and electrode column to (22), and one of the pusher (21) is fixed to be connected
It connects on suction pipe (13), other end is through the limiting slot (23) of connection pedestal (2) lower wall, and pole is to (22) and super-elasticity conjunction
Spun gold (12) is slidably connected, hole (24) of the proximal end of superelastic alloy silk (12) through connection pedestal (2) upper side wall, handle
(3) internal to be successively arranged battery (31), Miniature negative pressure pump (32) and radio-frequency generator (33), the Miniature negative pressure pump from bottom to up
(32) it is electrically connected respectively by conducting wire and the battery (31) with radio-frequency generator (33), Miniature negative pressure pump (32) is gone back and suction
The proximal end for managing (13) is connected, and radio-frequency generator (33) is also electrically connected (22) with electrode column.
2. asymmetric tumour electricity snare under a kind of scope as described in claim 1, which is characterized in that the super-elasticity is closed
Spun gold (12) is connected with pull ring (122) proximally by telescoping tube (121), and the pull ring (122) and telescoping tube (121) are to fix
Connection.
3. asymmetric tumour electricity snare under a kind of scope as described in claim 1, which is characterized in that the electrode column pair
(22) side wall is equipped with an astragal slot (221), and the superelastic alloy silk (12) is located at electrode column to the wire casing between (22)
(221) in.
4. asymmetric tumour electricity snare under a kind of scope as claimed in claim 1 or 3, which is characterized in that the electrode
Column can rotate freely (22).
5. asymmetric tumour electricity snare under a kind of scope as described in claim 1, which is characterized in that the handle (3)
Outside be equipped with switch one (34) and switch two (35), the switch one (34) is connected to the Miniature negative pressure pump (32) and battery
(31) between, the switch two (35) is connected between the radio-frequency generator (33) and battery (31).
6. asymmetric tumour electricity snare under a kind of scope as described in claim 1, which is characterized in that the limiting slot
(23) bayonet (231) are respectively equipped on the outside of both ends.
7. asymmetric tumour electricity snare under a kind of scope as claimed in claim 1 or 2, which is characterized in that the superlastic
Property alloy wire (12) be Nitinol.
8. asymmetric tumour electricity snare under a kind of scope as described in claim 1, which is characterized in that the suction disk
It (14) is flexible membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820017982.9U CN209529317U (en) | 2018-01-05 | 2018-01-05 | Asymmetric tumour electricity snare under a kind of scope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820017982.9U CN209529317U (en) | 2018-01-05 | 2018-01-05 | Asymmetric tumour electricity snare under a kind of scope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209529317U true CN209529317U (en) | 2019-10-25 |
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ID=68244130
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820017982.9U Active CN209529317U (en) | 2018-01-05 | 2018-01-05 | Asymmetric tumour electricity snare under a kind of scope |
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| Country | Link |
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| CN (1) | CN209529317U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112914556A (en) * | 2019-12-05 | 2021-06-08 | 朱霖 | Measuring scale |
| CN113349919A (en) * | 2021-06-29 | 2021-09-07 | 湖州市妇幼保健院 | Gastrointestinal endoscope polyp removal auxiliary collector and method |
-
2018
- 2018-01-05 CN CN201820017982.9U patent/CN209529317U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112914556A (en) * | 2019-12-05 | 2021-06-08 | 朱霖 | Measuring scale |
| CN113349919A (en) * | 2021-06-29 | 2021-09-07 | 湖州市妇幼保健院 | Gastrointestinal endoscope polyp removal auxiliary collector and method |
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