CN218075981U

CN218075981U - Adjustable bending electric knife adjusting handle for catheter

Info

Publication number: CN218075981U
Application number: CN202123374192.7U
Authority: CN
Inventors: 叶亚彬; 徐宏; 秦翔翔; 张旭波
Original assignee: Hangzhou Kunbo Biotechnology Co Ltd
Current assignee: Hangzhou Kunbo Biotechnology Co Ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-12-20
Anticipated expiration: 2031-12-29

Abstract

The utility model relates to the technical field of medical equipment, a adjustable curved electrotome is adjustment handle for pipe is disclosed. The utility model discloses an adjustment handle, include: bear casing, adjusting part, shell body, adjust knob, stop collar and banana and connect, adjusting part sets up in the arc spout that bears the casing, and the first line of acting as go-between and the second of electrotome pipe are acted as go-between and are connected with adjusting part respectively, and banana connects the setting at the near-end that bears the casing, and shell body and stop collar cover are established on bearing the casing, and the rotatable cover of adjust knob is established on bearing the casing, is located between shell body and the stop collar, and adjust knob is connected with adjusting part. In the adjusting handle of the utility model, the adjusting knob drives the adjusting component to slide in the bearing shell, and the second pull wire is tightened when the adjusting component slides forwards, so that the electrotome catheter deflects towards the first direction; when the electric knife catheter slides backwards, the first pull wire is tightened, so that the electric knife catheter deflects towards the direction opposite to the first direction, the electric knife catheter can accurately reach a diseased region, and accurate directional cutting is realized.

Description

Adjustable bending electric knife adjusting handle for catheter

Technical Field

The embodiment of the utility model provides a relate to medical instrument technical field, concretely relates to adjustable curved electrotome is adjustment handle for pipe.

Background

Bronchoscopes are important aids in the treatment of respiratory diseases. Clinically, some lung diseases with unknown diseases are usually examined cytologically and bacteriologically by bronchofiberscope, bronchopulmonary biopsy, brushing, etc.

When in use, the endoscope is used for endoscopic interventional therapy by means of a catheter (such as an electrotome catheter). The electrotome catheter (catheter) plays a role in establishing a channel in the process and is matched with a bronchoscope to reach a diseased part of a patient for sampling.

However, the existing electrotome catheter (catheter) can not be bent under control after entering the body of a patient, so that the electrotome catheter can not be accurately positioned to the lesion part of the patient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an adjustable curved electrotome is adjustment handle for pipe to solve the problem among the above-mentioned background art.

An embodiment of the utility model provides an adjustable curved adjustment handle for electrotome pipe for with electrotome pipe connection, be equipped with first acting as go-between, second acting as go-between and wire in the electrotome pipe, adjustment handle includes: the bearing shell, the adjusting component, the outer shell, the adjusting knob, the limiting sleeve and the banana connector;

the bearing shell is provided with an arc-shaped sliding chute;

the electrotome catheter is connected at the distal end of the carrier housing;

the adjusting assembly is arranged in the arc-shaped sliding groove, and the first pull wire and the second pull wire are respectively connected with the adjusting assembly;

the banana joint is arranged at the near end of the bearing shell, the lead is electrically connected with the banana joint, and the banana joint is used for being externally connected with electrotome equipment;

the shell body with the stop collar cover is established bear on the casing, the rotatable cover of adjust knob is established bear on the casing, be located the shell body with between the stop collar, adjust knob with adjusting part connects, adjust knob is used for driving when rotating adjusting part slides, adjusting part is used for making respectively when sliding in the front and back first acting as go-between with the second acts as go-between tightens up.

According to the above scheme, the utility model discloses an adjustable curved adjustment handle for electrotome pipe, bear the casing through setting up, adjusting part, the shell body, adjust knob, stop collar and banana joint, electrotome pipe connection is at the distal end that bears the casing, adjusting part sets up in the arc spout that bears the casing, first acting as go-between and second act as go-between are connected with adjusting part respectively, the banana connects the near-end that sets up at bearing the casing, with wire electric connection, shell body and stop collar are established on bearing the casing, the rotatable cover of adjust knob is established on bearing the casing, be located between shell body and the stop collar, be connected with adjusting part. The utility model discloses an adjustable handle for electric knife pipe that bends rotates adjust knob, drives the adjusting part and slides in bearing the weight of the arc spout of casing, and the adjusting part tightens up the second stay wire when sliding forward, makes the distal end of electric knife pipe deflect to the first direction; the first stay wire is tightened up when the adjusting component slides backwards, so that the far end of the electrotome catheter deflects in the opposite direction of the first direction, the bidirectional bending adjustment of the electrotome catheter is realized, and when pulmonary nodules and bronchial malignant lesion or other complex operations are performed, the electrotome catheter can accurately reach the lesion part of a patient through the observation function of the matched endoscope, so that the lesion tissue can be accurately and directionally cut, the operation difficulty is reduced, and the operation risk is avoided.

In one possible approach, the adjustment assembly includes: an adjusting card and a front roller;

the adjusting knob is provided with internal threads, and the outer surface of the adjusting knob is provided with an anti-skidding groove;

the front roller is rotatably arranged at the front end of the bearing shell;

the adjusting card is arranged in the arc-shaped chute in a sliding manner and is provided with a first wire pulling card and a second wire pulling card;

the first pull wire and the second pull wire are respectively arranged on the adjusting clamp in a penetrating mode, the first pull wire is fixed on the first pull wire clamp, and the second pull wire is fixed on the second pull wire clamp after bypassing the front roller;

and protruding columns are arranged on two sides of the adjusting clamp and are inserted into the thread grooves of the adjusting knob. By adopting the structure, the first pull wire and the second pull wire are tightened when the adjusting knob rotates, and the adjusting knob is convenient to rotate.

In one possible solution, the adjusting assembly further comprises: a rear roller;

the rear idler wheel is rotatably arranged on the bearing shell, is positioned at the rear end of the adjusting clamp and is used for abutting against the first pull wire. By adopting the structure, the first stay wire and the second stay wire can be pulled more conveniently.

In one possible solution, the bearing housing is provided with a first mounting groove and a second mounting groove;

the rotatable card of the preceding gyro wheel axle of preceding gyro wheel is established in the first mounting groove, the rotatable card of the back gyro wheel axle of back gyro wheel is established in the second mounting groove. By adopting the structure, the installation and fixation of the front roller and the rear roller are facilitated.

In one possible solution, the method further comprises: a fixing sheet;

the fixing piece covers the arc-shaped sliding groove of the bearing shell, a rectangular sliding groove is formed between the fixing piece and the bearing shell, the protruding column is slidably clamped in the rectangular sliding groove, and the rectangular sliding groove is used for limiting the sliding stroke of the protruding column. By adopting the structure, the adjusting card is prevented from jumping up and down.

In one possible solution, the stop sleeve is provided with an internal thread;

the limiting sleeve is meshed with the bearing shell through internal threads, and the limiting sleeve and the adjusting knob are arranged in the opposite thread turning direction. By adopting the structure, the adjusting knob is better limited.

In one possible embodiment, the method further comprises: a rear end cap;

the rear end of the bearing shell is provided with a threaded connecting column, the threaded connecting column is provided with four-petal elastic clamping blocks, and the elastic clamping blocks are provided with internal threads;

the rear end cover is meshed with the threaded connecting column, and the rear end cover is used for enabling the four elastic clamping blocks to clamp the electrotome catheter tightly when the rear end cover is screwed tightly. By adopting the structure, the electric knife conduit is more firmly fixed.

In a possible solution, the bearing shell is provided with a first limit plane;

the outer shell is provided with a second limiting plane, and the second limiting plane is used for abutting against the first limiting plane;

the surface of shell body is equipped with the arc concave surface, be equipped with fan-shaped recess in the arc concave surface. By adopting the structure, the outer shell is prevented from rotating along the radial direction and is convenient to hold.

In a possible solution, the bearing housing is provided with a first limit boss;

the shell body is provided with a first limiting groove, and the first limiting groove is used for embedding the first limiting boss. With this structure, the outer case is prevented from sliding in the axial direction.

In one possible solution, the method further comprises: a front end cap;

the bearing shell is provided with an external thread section and a second limiting boss;

the front end cap is provided with a bulge ring and a second limiting groove;

the front end cap is clamped on the bearing shell through the protruding ring, the second limiting groove is used for enabling the second limiting boss to be embedded, and the banana connector is arranged on the front end cap. By adopting the structure, the banana connectors can be conveniently installed and fixed.

In a feasible scheme, the front end cap is provided with a limit clamping groove;

the banana connector is provided with a hexagon nut, and the hexagon nut is clamped in the limiting clamping groove and used for limiting the rotation of the banana connector. By adopting the structure, the banana connector is prevented from rotating when in use.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic view of an adjusting handle for an adjustable bending electrotome catheter in an embodiment of the present invention;

fig. 2 is a schematic view of a bearing housing according to an embodiment of the present invention;

fig. 3 is an enlarged view of a point a in fig. 2 in an embodiment of the present invention;

fig. 4 is a schematic diagram of an adjustment card in an embodiment of the present invention;

fig. 5 is a schematic view of the connection between the adjusting clip and the pull wire in the embodiment of the present invention;

FIG. 6 is a schematic view of the assembly of the bearing housing and the fixing plate in the embodiment of the present invention;

fig. 7 is an enlarged view of a portion B in fig. 6 according to an embodiment of the present invention;

fig. 8 is a schematic view of an outer housing in an embodiment of the invention;

fig. 9 is another schematic angle view of the outer housing in the embodiment of the present invention;

fig. 10 is a schematic view of a front end cap in an embodiment of the invention;

fig. 11 is a schematic view of a banana joint in an embodiment of the present invention.

The reference numbers in the figures:

11. a first pull wire; 12. a second pull wire; 13. a wire; 2. a load bearing housing; 201. a first mounting groove; 202. a rectangular chute; 203. a threaded connection post; 2031. an elastic clamping block; 204. a first limit plane; 205. a first limit boss; 206. a second limit boss; 21. a fixing sheet; 22. a rear end cap; 23. a front end cap; 231. a projecting ring; 232. a second limit groove; 233. a limiting clamping groove; 3. an adjustment assembly; 31. adjusting the card; 311. a first wire pulling clamp; 312. a second wire pulling clamp; 313. a projecting post; 32. a front roller; 321. a front roller shaft; 33. a rear roller; 4. an outer housing; 401. a second limit plane; 402. a first limit groove; 5. adjusting a knob; 6. a position limiting sleeve; 7. banana junctions; 71. a hexagonal nut.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; the connection can be mechanical connection, electrical connection or communication connection; either directly or indirectly through intervening media, either internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The technical solution of the present invention will be described in detail with specific examples. These several specific embodiments may be combined with each other below, and details of the same or similar concepts or processes may not be repeated in some embodiments.

As described in the background of the present application, bronchoscopes are important aids for the treatment of respiratory diseases, and are used for endoscopic interventions via catheters (e.g., electrosurgical catheters). The electrotome catheter (catheter) plays a role in establishing a channel in the process and is matched with a bronchoscope to reach a diseased part of a patient for sampling.

The inventor of the application finds that after the existing electrotome catheter (catheter) enters the body of a patient, the bending can not be controlled, so that the electrotome catheter can not be accurately positioned to the lesion part of the patient. Therefore, the operation has very high requirements on the operation technique and experience of the operator, and is not suitable for wide popularization in hospitals.

In order to solve the above problems, the inventor of the present application proposes a technical solution of the present application, and specific embodiments are as follows:

fig. 1 is the embodiment of the utility model provides an in the embodiment of the utility model adjustable curved electrotome is adjustment handle's for pipe schematic diagram, fig. 2 is the embodiment of the utility model provides an in the shell's that bears the weight of the schematic diagram, fig. 3 is the embodiment of the utility model provides an in fig. 2 the enlargements of A department, fig. 4 is the embodiment of the utility model provides an in the embodiment of the schematic diagram of adjusting the card, fig. 5 is the embodiment of the utility model provides an in the embodiment of the adjustment card with the connection schematic diagram of acting as go-between. Fig. 6 is the assembly schematic view of bearing housing and stationary blade in the embodiment of the present invention, fig. 7 is the embodiment of the present invention is an enlarged view of B department in fig. 6, fig. 8 is the embodiment of the present invention is a schematic view of an outer shell, fig. 9 is the embodiment of the present invention is another angle schematic view of an outer shell, fig. 10 is the embodiment of the present invention is a schematic view of a front end cap, fig. 11 is the embodiment of the present invention is a schematic view of a banana joint.

As shown in fig. 1 to 11, the adjustable handle for an adjustable bending electric knife catheter of the present embodiment is used for connecting with the proximal end of the electric knife catheter (catheter). The distal end of electrotome pipe is equipped with the electrode, is equipped with first acting as go-between 11, second acting as go-between 12 and wire 13 in the electrotome pipe, wire 13 and the electrode electric connection of electrotome pipe distal end, and the one end (distal end) of first acting as go-between 11 and second acting as go-between 12 is fixed on the inner wall of electrotome pipe distal end, is located the relative both sides of electrotome pipe inner wall, and first acting as go-between 11 and second acting as go-between 12 are when tightening up, drive the distal end of electrotome pipe to the direction bending of difference.

The adjustment handle includes: the bearing shell 2, the adjusting component 3, the outer shell 4, the adjusting knob 5, the stop collar 6 and the banana connector 7.

Bear casing 2 and be rectangular half circular arc, be equipped with the arc passageway, the arc passageway forms the arc spout in the near-end one side that bears casing 2.

The adjusting component 3 is arranged on the bearing shell 2 and is positioned in the arc-shaped sliding groove of the bearing shell 2. The proximal end of the electrotome catheter is connected with the distal end of the bearing shell 2, the first pull wire 11, the second pull wire 12 and the guide wire 13 extend into the arc-shaped sliding groove of the bearing component 2, and the first pull wire 11 and the second pull wire 12 are respectively connected with the adjusting component 3.

Banana joint 7 sets up at the near-end tip that bears casing 3, and banana joint 7 is equipped with the screw thread face of weld, and wire 13 stretches into in the arc passageway that bears the casing to the welding is on the screw thread face of weld of banana joint 7, the realization with banana joint 7's electric connection, and banana joint 7 is connected with outside high frequency electrotome equipment, in order to provide the energy for the electrode of electrotome pipe distal end.

The shell body 4 and the stop collar 6 are respectively sleeved at the far end and the near end of the bearing shell body 2, the adjusting knob 5 is rotatably sleeved on the bearing shell body 2 and is positioned between the shell body 4 and the stop collar 6, two ends of the adjusting knob 5 are respectively abutted against the shell body 4 and the stop collar 6, an arc-shaped groove is distributed on the circumferential side surface of the adjusting knob 5, and the adjusting knob 5 is movably connected with the adjusting component 3 in the arc-shaped chute of the bearing shell body 2.

In this embodiment, the bearing housing, the outer housing, and the adjusting knob are made of POM (polyoxymethylene), which has good strength, rigidity, and elasticity. When the adjusting mechanism is used, the adjusting knob 5 is rotated, and the adjusting knob 5 drives the adjusting component 3 to slide back and forth in the arc-shaped sliding groove of the bearing shell 2 when rotating. The adjusting component 3 tightens the second pull wire 12 when sliding forwards, so that the distal end of the electric knife conduit deflects to a first direction; the adjustment assembly 3, when slid rearwardly, tightens the first pull wire 11, deflecting the distal end of the electrotome catheter in a direction opposite the first direction.

Through the above, it is not difficult to discover that the adjustable curved adjustment handle for electrotome catheter of this embodiment, bear the casing through setting up, adjusting part, the shell body, adjust knob, stop collar and banana connector, electrotome pipe connection is at the distal end that bears the casing, adjusting part sets up in the arc spout that bears the casing, first acting as go-between and second act as go-between are connected with adjusting part respectively, banana connector sets up at the near-end that bears the casing, with wire electric connection, shell body and stop collar cover are established on bearing the casing, the rotatable cover of adjust knob is established on bearing the casing, be located between shell body and the stop collar, be connected with adjusting part. According to the adjusting handle for the bending-adjustable electrotome catheter, the adjusting knob is rotated to drive the adjusting assembly to slide in the arc-shaped sliding groove of the bearing shell, and the adjusting assembly tightens the second pull wire when sliding forwards, so that the far end of the electrotome catheter deflects towards the first direction; the first stay wire is tightened up when the adjusting component slides backwards, so that the far end of the electrotome catheter deflects in the opposite direction of the first direction, the bidirectional bending adjustment of the electrotome catheter is realized, and when pulmonary nodules and bronchial malignant lesion or other complex operations are performed, the electrotome catheter can accurately reach the lesion part of a patient through the observation function of the matched endoscope, so that the lesion tissue can be accurately and directionally cut, the operation difficulty is reduced, and the operation risk is avoided.

Optionally, as shown in fig. 2, 4, and 5, in the adjusting handle for an adjustable bending electrotome catheter in this embodiment, the adjusting assembly 3 includes: an adjustment card 31 and a front roller 32.

The outer circumferential surface of the adjustment knob 5 is provided with a wavy anti-slip groove to increase the friction between the adjustment knob 5 and the fingers, so that the adjustment knob can be rotated more easily.

The inner wall of the adjusting knob 5 is provided with internal threads.

The front roller 32 is rotatably disposed on the carrying case 2 at the front end of the arc chute of the carrying case 2.

The adjustment card 31 is slidably disposed in the arc-shaped slide slot of the carriage housing 2 at the rear end of the front roller 32. The adjusting card 31 is provided with a plurality of through holes, the adjusting card 31 is provided with a first line drawing card 311 and a second line drawing card 312, the first line drawing card 311 and the second line drawing card 312 are respectively embedded in the mounting grooves of the adjusting card 31, and the second line drawing card 312 is located on one side (front end) of the adjusting card 31 close to the front roller 32.

The first stay wire 11 and the second stay wire 12 in the electric knife guide pipe are respectively arranged in the through holes of the adjusting clamp 31 in a penetrating mode, the end portion of the first stay wire 11 is fixed on the first stay wire clamp 311, the second stay wire 12 penetrates out of the through holes of the adjusting clamp 31, after the second stay wire 12 bypasses the front roller 32, the second stay wire 12 is bent into a U shape, and then the end portion of the second stay wire 12 is fixed on the second stay wire clamp 312.

The side walls of the two sides of the adjusting card 31 are provided with protruding columns 313, and the protruding columns 313 on the adjusting card 31 are inserted into the thread grooves of the internal thread of the adjusting knob 5.

In this embodiment, the adjusting knob is rotated, and the adjusting knob drives the adjusting card to slide back and forth in the arc-shaped chute of the bearing shell. When the adjusting clamp slides forwards, the adjusting clamp drives the second pull wire which bypasses the front pulley to tighten, so that the far end of the electrotome catheter deflects towards the first direction; when the adjusting card slides backwards, the first pull wire is driven to be tightened, so that the far end of the electrotome catheter deflects to the opposite direction of the first direction, and the electrotome catheter is bent.

Further, in the adjusting handle for the adjustable bending electrotome catheter in this embodiment, the adjusting assembly 3 further includes: a rear roller 33.

The rear roller 33 is rotatably disposed on the carrying case 2 and located at the rear end of the arc chute of the carrying case 2, and the front roller 32 and the rear roller 33 are respectively located at the front and rear sides of the adjusting card 31. The first pull wire 11 is pressed and abutted against the upper surface of the rear roller 33, so that the adjusting clamp can conveniently tighten the first pull wire and the second pull wire when sliding.

Further, in the adjusting handle for the bendable electric knife catheter in the present embodiment, the front end and the rear end of the bearing housing 2 are respectively provided with a first mounting groove 201 and a second mounting groove (not shown in the drawings).

The front roller shaft 321 of the front roller 32 is rotatably clamped in the first mounting groove 201 of the bearing housing 2, and the rear roller shaft of the rear roller 33 is rotatably clamped in the second mounting groove of the bearing housing 2, so that the front roller and the rear roller can be conveniently mounted and fixed.

Further, as shown in fig. 6 and 7, the adjusting handle for an adjustable bending electric knife catheter in this embodiment further includes: a fixing piece 21.

The fixed sheet 21 covers the bearing shell 2 and is located at the arc-shaped chute of the bearing shell 2, and the fixed sheet 21 and the bearing shell 2 are spliced into a circular ring. The fixing plate 21 abuts against the top surfaces of the adjusting clamp 31, the front roller shaft 321 and the rear roller shaft, so as to prevent the adjusting clamp 31, the front roller 32 and the rear roller 33 from jumping in the arc-shaped sliding groove of the bearing shell 2 and also prevent the front roller shaft and the rear roller shaft from jumping out of the mounting grooves.

The side walls of the fixing plate 21 and the bearing shell 2 are both provided with rectangular grooves, the fixing plate 21 covers the bearing shell 2, the rectangular grooves form rectangular sliding grooves 202 between the fixing plate 21 and the bearing shell 2, and the protruding columns 313 of the adjusting card 31 can be slidably clamped in the rectangular sliding grooves 202. And the length of the rectangular sliding chute 202 limits the stroke of the adjusting card 31, and prevents the adjusting card from interfering with the front roller and the rear roller when the sliding distance is too large.

Furthermore, in the adjusting handle for the adjustable bending electric knife catheter in the embodiment, the inner wall of the limiting sleeve 6 is provided with internal threads.

The tip that bears casing 2 is equipped with the external screw thread, and the internal thread meshing of stop collar 6 makes things convenient for stop collar 6 and bears being connected of casing 2 on bearing the external screw thread of casing 2.

And the thread turning direction of the internal thread of the limiting sleeve 6 is opposite to that of the internal thread of the adjusting knob 5, and the limiting sleeve 6 and the adjusting knob 5 form a reverse thread structure. After the limiting sleeve is screwed and fixed, the limiting sleeve is adjusted to rotate reversely to move backwards, and after the limiting sleeve is abutted against the limiting sleeve, the limiting sleeve is stressed to realize the positioning of the adjusting knob.

Optionally, as shown in fig. 3 and 6, the adjusting handle for an adjustable bending electrotome catheter in this embodiment further includes: a rear end cap 22.

The far end that bears casing 2 is equipped with threaded connection post 203, and the tip of threaded connection post 203 is equipped with four lamella elasticity clamp blocks 2031, and the inner wall of elasticity clamp block 2031 is equipped with the internal thread, and the near-end tip of electrotome pipe is pegged graft in the through-hole of threaded connection post 203, lies in between four lamella elasticity clamp blocks 2031, makes things convenient for the insertion of electrotome pipe.

The rear end cover 22 is conical, the rear end cover 22 is meshed with the threaded connecting column 203 in a threaded connection mode, and arc-shaped concave surfaces distributed circumferentially are arranged on the outer surface of the rear end cover 22, so that the rear end cover can be conveniently rotated. When the rear end cover 22 is screwed, the four-petal elastic clamping blocks 2031 contract inwards, and the four-petal elastic clamping blocks 2031 clamp the electrotome catheter, so that the electrotome catheter is prevented from loosening in use; and the rear end cap 22 abuts against the outer shell 4 when screwed, preventing the outer shell from falling off the bearing shell.

Optionally, as shown in fig. 3 and 8, in the adjusting handle for the adjustable bending electric knife catheter in the embodiment, the distal end of the bearing housing 2 is provided with a first limit plane 204.

The inner wall of the distal end of the outer shell 4 is provided with a second limiting plane 401, and the second limiting plane 401 of the outer shell 4 abuts against the first limiting plane 204 of the bearing shell 2, so that the outer shell is positioned on the bearing shell, and the outer shell is prevented from rotating relative to the bearing shell.

An arc concave surface is arranged on the outer circumferential surface of the outer shell 4, and a fan-shaped groove is arranged in the arc concave surface of the outer shell 4 to facilitate the holding of the outer shell.

Further, as shown in fig. 7 and 9, in the adjusting handle for an adjustable bending electrotome catheter in the present embodiment, the bearing housing 2 is provided with a first limit boss 205 at a distal end side wall of the arc-shaped chute.

The inner wall of the near end of the outer shell 4 is provided with a first limit groove 402, and the first limit groove of the outer shell 4 is used for embedding the first limit boss 205 of the bearing shell 2, so as to prevent the outer shell from moving along the axial direction of the bearing shell.

Optionally, as shown in fig. 5, 10, and 11, the adjusting handle for an adjustable bending electrotome catheter in this embodiment further includes: a front end cap 23.

The proximal end of the bearing shell 2 is provided with an external thread section, and the proximal end face of the bearing shell 2 is provided with a second limit boss 206.

Front end cap 23 is split type structure, is formed by two semicircular ring concatenations, and two semicircular rings pass through locating pin and locating hole cooperation location. The front end cap 23 is provided with a protruding ring 231, and a second limiting groove 232 is formed in the side wall of the front end cap 23.

The stop collar 6 engages in a threaded manner on the external thread section of the support housing 2.

The protruding ring 231 of the front end cap 23 is snapped into the channel of the bearing housing 2, and the second limiting projection 206 of the bearing housing 2 is embedded into the second limiting groove 232 of the front end cap 23. Banana connector 7 wears to establish in front end cap 23, and front end cap 23 shelters from banana connector 7, and is equipped with the passageway between the inner wall of front end cap 23 and banana connector 7, and the adapter sleeve of high-frequency electrotome equipment inserts.

Further, in the adjusting handle for the adjustable bending electrotome catheter in this embodiment, the inner wall of the front end cap 23 is provided with a limiting clamping groove 233.

Be equipped with hexagon nut 71 on the banana connector 7, hexagon nut 71 card is established in the spacing draw-in groove 233 of front end cap, prevents that banana connector from taking place to rotate when using.

In the present application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or the first and second features may be indirectly contacting each other through intervening media.

Also, a first feature "on," "above," and "over" a second feature may mean that the first feature is directly above or obliquely above the second feature, or that only the first feature is at a higher level than the second feature. "beneath," "below," and "beneath" a first feature may be directly or obliquely below the second feature or may simply mean that the first feature is at a lower level than the second feature.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example" or "some examples," or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides an adjustable curved adjustment handle for electrotome pipe for with electrotome pipe connection, be equipped with first acting as go-between, second acting as go-between and wire in the electrotome pipe, its characterized in that, adjustment handle includes: the device comprises a bearing shell, an adjusting component, an outer shell, an adjusting knob, a limiting sleeve and a banana connector;

the bearing shell is provided with an arc-shaped sliding chute;

the electrotome catheter is connected at the distal end of the bearing shell;

2. The adjustment handle for an adjustable bending electrotome catheter according to claim 1, wherein the adjustment assembly comprises: an adjusting card and a front roller;

the adjusting knob is provided with internal threads, and the outer surface of the adjusting knob is provided with an anti-skidding groove; the front roller is rotatably arranged at the front end of the bearing shell;

the adjusting card is slidably arranged in the arc-shaped chute and is provided with a first wire drawing card and a second wire drawing card;

and protruding columns are arranged on two sides of the adjusting clamp and are inserted in the thread grooves of the adjusting knob.

3. The adjustment handle for an adjustable bending electrotome catheter according to claim 2, wherein the adjustment assembly further comprises: a rear roller;

the rear idler wheel is rotatably arranged on the bearing shell, is positioned at the rear end of the adjusting clamp and is used for abutting against the first pull wire.

4. The adjustment handle for an adjustable bending electrotome catheter according to claim 3, wherein the bearing housing is provided with a first mounting slot and a second mounting slot;

the front roller shaft of the front roller can be rotationally clamped in the first mounting groove, and the rear roller shaft of the rear roller can be rotationally clamped in the second mounting groove.

5. The adjustment handle for an adjustable bending electrotome catheter according to claim 4, further comprising: a fixing sheet;

the fixed plate covers the arc-shaped sliding groove of the bearing shell, a rectangular sliding groove is formed between the fixed plate and the bearing shell, the protruding column is slidably clamped in the rectangular sliding groove, and the rectangular sliding groove is used for limiting the sliding stroke of the protruding column.

6. The adjusting handle for the adjustable bending electrotome catheter according to claim 2, wherein the limiting sleeve is provided with an internal thread;

the limiting sleeve is meshed with the bearing shell through internal threads, and the limiting sleeve and the adjusting knob are arranged in the opposite thread turning direction.

7. The adjustment handle for an adjustable bending electrotome catheter according to claim 1, further comprising: a rear end cap;

the rear end cover is meshed with the threaded connecting column, and the rear end cover is used for enabling the four elastic clamping blocks to clamp the electrotome catheter when being screwed tightly.

8. The adjustment handle for an adjustable bending electrotome catheter according to claim 1, wherein the bearing housing is provided with a first limit plane;

the surface of shell body is equipped with the arc concave surface, be equipped with fan-shaped recess in the arc concave surface.

9. The adjustment handle for an adjustable bending electrotome catheter according to claim 8, wherein the bearing housing is provided with a first limit boss;

the shell body is provided with a first limiting groove, and the first limiting groove is used for embedding the first limiting boss.

10. The adjustment handle for an adjustable bending electrotome catheter according to claim 1, further comprising: a front end cap;

the front end cap is provided with a bulge ring and a second limiting groove;

the front end cap is clamped on the bearing shell through the protruding ring, the second limiting groove is used for enabling the second limiting boss to be embedded, and the banana connector is arranged on the front end cap.