CN210931783U

CN210931783U - Electrocoagulation surgical instrument

Info

Publication number: CN210931783U
Application number: CN201921248126.5U
Authority: CN
Inventors: 徐欢; 张迎
Original assignee: Zhejiang Geyi Medical Instrument Co ltd
Current assignee: Zhejiang Geyi Medical Instrument Co ltd
Priority date: 2019-08-02
Filing date: 2019-08-02
Publication date: 2020-07-07
Anticipated expiration: 2029-08-02

Abstract

The application discloses electricity congeals surgical instrument includes: the handle is provided with a mounting cavity; the electrocoagulation head assembly comprises an electrocoagulation head, a metal conduit and an electrocoagulation lead, wherein the electrocoagulation head is arranged at one end of the metal conduit, the other end of the metal conduit extends into the mounting cavity, and the electrocoagulation lead extends into the mounting cavity and is connected with the metal conduit and used for transmitting an electric signal to the electrocoagulation head; and the flushing and sucking assembly comprises a flushing pipe, a sucking pipe and a pipeline switch, the flushing pipe and the sucking pipe extend into the handle and are communicated with the metal catheter, and the pipeline switch is used for controlling the connection or disconnection of the flushing pipe and the sucking pipe. The electric coagulation surgical instrument provided by the utility model integrates the functions of electric coagulation, flushing and smoking, and does not need to be frequently inserted into and pulled out of the abdominal cavity, thereby reducing the risk of surgical infection of patients; can be operated by one hand, realizes the quick conversion of electric coagulation, flushing and smoking, greatly reduces the time for replacing instruments, is convenient to operate, greatly improves the operation efficiency and improves the treatment timeliness.

Description

Electrocoagulation surgical instrument

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to an electricity congeals surgical instruments.

Background

With the development of science and technology, medical instruments are along the way on the premise of ensuring safety and effectivenessThe mainstream direction of minimizing surgical trauma is developing, and medical instruments for realizing related operations are continuously pursued to have more minimally invasive clinical effects. The application of the laparoscopic surgery in the clinical aspect has been in the history for decades, and compared with the traditional surgery, the laparoscopic surgery has the advantages of small wound, low infection rate, quick postoperative recovery and the like, and is widely applied to the fields of urology surgery, gynecology, abdominal surgery and the like. The laparoscopic surgery is to inject CO into the abdominal cavity after 2-5 laparoscopic puncture outfits are penetrated into the abdominal cavity of a patient₂The gas makes the abdominal cavity swell, the endoscope and the medical apparatus enter the abdominal cavity of the human body through the passage of the puncture outfit, the doctor observes the condition of the tissues in the abdominal cavity of the patient through the images fed back by the endoscope, and the medical apparatus is operated to realize the electric coagulation, the cutting, the flushing and the suturing of the tissues.

The electrocoagulation cutter and the flushing aspirator are two common instruments in laparoscopic surgery, the electrocoagulation cutter can carry out electrocoagulation hemostasis and electrocoagulation cutting on tissues, and the flushing aspirator can carry out flushing on tissue incisions, sucking and removing residual liquid in cavities and sucking and removing electrocoagulation smog. The existing electrocoagulation cutter and flushing aspirator are two independent instruments, when the electrocoagulation operation is needed to be carried out through the electrocoagulation cutter, electrocoagulation smoke is continuously generated in the abdominal cavity, when the smoke is coagulated to a certain degree, the visual field of an image fed back by an endoscope is influenced, at the moment, a doctor needs to stop electrocoagulation, the electrocoagulation cutter is drawn out of the abdominal cavity, the flushing aspirator is stretched into the abdominal cavity to suck the smoke out, and then the electrocoagulation cutter is stretched into the abdominal cavity to continue the electrocoagulation operation, the electrocoagulation cutter and the flushing aspirator need to be stretched into and drawn out of the abdominal cavity frequently in the process, the operation is complex, the operation efficiency is low, and the surgical infection risk of a patient is increased. For example, in laparoscopic cholecystectomy, a doctor needs to rapidly cut the gallbladder and rapidly suck bile out of the body, which cannot be achieved by the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model provides an electrocoagulation surgical instrument aiming at the problems, which integrates the functions of electrocoagulation, flushing and smoking, and does not need to be frequently inserted into and pulled out of the abdominal cavity, thereby reducing the surgical infection risk of patients; can be operated by one hand, realizes the quick conversion of electric coagulation, flushing and smoking, greatly reduces the time for replacing instruments, is convenient to operate, greatly improves the operation efficiency and improves the treatment timeliness.

The utility model adopts the following technical scheme: the utility model provides an electricity congeals surgical instruments, include:

the handle is provided with a mounting cavity;

the electrocoagulation head assembly comprises an electrocoagulation head, a hollow metal conduit and an electrocoagulation lead, wherein the electrocoagulation head is arranged at one end of the metal conduit, the other end of the metal conduit extends into the installation cavity, the electrocoagulation lead extends into the installation cavity and is connected with the metal conduit, and the electrocoagulation lead is used for transmitting an electrocoagulation or cutting electric signal to the electrocoagulation head; and

the flushing and sucking assembly comprises a flushing pipe, a sucking pipe and a pipeline switch, wherein the flushing pipe and the sucking pipe extend into the mounting cavity and are arranged in the handle and communicated with the metal conduit, and the pipeline switch is used for controlling the connection or disconnection of the flushing pipe and the sucking pipe.

In an embodiment of the present invention, the electrocoagulation surgical instrument further includes a rotating wheel, the rotating wheel is rotatably disposed on the handle, the metal conduit passes through the rotating wheel stretches into the installation cavity, the metal conduit and the rotating wheel is provided with a limiting structure to limit the rotating wheel to the circumferential rotation of the metal conduit, the rotating wheel can drive the metal conduit rotates, and then drives the electrocoagulation head rotates.

In an embodiment of the present invention, the limiting structure includes a limiting pin, a limiting groove formed in the metal conduit and a limiting hole formed in the rotating wheel, the limiting pin is inserted into the limiting hole, and the limiting groove of the metal conduit is matched with a tangent plane formed in the limiting groove of the metal conduit to limit the rotating wheel relative to the circumferential rotation of the metal conduit.

In an embodiment of the present invention, the limiting groove is a long strip, and the limiting groove is disposed along a length direction of the metal conduit, and the metal conduit can move axially relative to the rotating wheel; the electrocoagulation head assembly further comprises an insulating outer tube and a push switch, the insulating outer tube is sleeved outside the metal guide tube, the insulating outer tube is fixedly arranged on the rotating wheel, a guide tube seat is fixedly arranged at one end, extending into the mounting cavity, of the metal guide tube, the push switch is movably arranged on the handle, the push switch extends into the mounting cavity and is abutted against the guide tube seat, and the push switch is used for controlling the guide tube seat to move so as to drive the metal guide tube to reciprocate relative to the axial direction of the insulating outer tube, so that the electrocoagulation head extends out of or retracts into the insulating outer tube; and one end of the insulating outer tube, which is close to the electrocoagulation head, is provided with a plurality of suction holes.

In an embodiment of the present invention, the electrocoagulation lead is provided with a conductive elastic sheet, the handle is provided with a limit boss, the conductive elastic sheet passes through the limit boss and is located on the handle, the conduit seat is made of metal material, the conductive elastic sheet is provided with an elastic arm, the elastic arm is supported on the outer wall of the conduit seat, and the elastic arm is tightly attached to the outer wall of the conduit seat through elastic deformation of the elastic arm.

In an embodiment of the present invention, the electrocoagulation surgical instrument further includes a shunt tube, the shunt tube is a three-way tube structure, one through hole of the shunt tube is connected to the metal conduit, the flushing tube and the suction tube are respectively connected to the other two through holes of the shunt tube, and the flushing tube and the suction tube are both connected through the shunt tube and the metal conduit.

In an embodiment of the present invention, the electrocoagulation surgical instrument further comprises a direction-adjusting joint, wherein the direction-adjusting joint connects the shunt tube and the metal conduit, so that a structure formed by the connection of the shunt tube and the metal conduit is consistent with a structure of the handle; the direction-adjusting joint comprises a first connecting section and a second connecting section which are connected with each other, and the included angle between the first connecting section and the second connecting section is 90-160 degrees.

In one embodiment of the present invention, the pipeline switch comprises a flushing switch and an attracting switch, both the flushing switch and the attracting switch comprise a switch main body, a valve cap and a valve core, the switch main body is of a three-way pipe structure, the switch main body is arranged on one side of the handle, the switch main body of the flushing switch is communicated with the flushing pipe and the shunt pipe, the switch main body of the suction switch is communicated with the suction tube and the shunt tube, the valve core is movably arranged in the switch main body, one end of the valve core close to the shunt tube is provided with a plugging part, a port for plugging the communication between the switch main body and the shunt pipe, the valve cap is movably arranged on the switch main body, the valve core is connected with the valve cap, the valve cap drives the valve core to move, and the valve core is used for controlling the valve core to block or open a port for communicating the switch main body with the shunt pipe;

pressing the valve cap, blocking the interface of the switch main body and the branch pipe by the blocking part, and turning off the flushing pipe or the suction pipe;

the valve cap is lifted, the plugging part opens the connector of the switch main body communicated with the shunt tube, and the flushing tube or the suction tube is communicated.

In an embodiment of the present invention, a clamping groove is provided on the blocking portion, and a sealing member for sealing is provided in the clamping groove.

In an embodiment of the present invention, the pipeline switch further includes a return spring, the return spring is sleeved on the valve core, and is used for resetting the valve core.

The utility model has the advantages that: the utility model provides an electric coagulation surgical instrument, which is provided with an electric coagulation head component and a flushing suction component, integrates the functions of electric coagulation, flushing and smoking, and does not need to frequently stretch into and draw out from the abdominal cavity, thereby reducing the surgical infection risk of patients; the quick switching of electrocoagulation, flushing and smoking is realized, the time for replacing instruments is greatly reduced, the operation is convenient, the operation efficiency is greatly improved, and the treatment timeliness is improved. When in use, the electric signal is conducted to the electric coagulation head through the electric coagulation conducting wire and the metal conduit in the electric coagulation head assembly, and electric coagulation or cutting operation is carried out; the flushing pipe in the flushing and sucking assembly is connected with flushing liquid, the conduction of the flushing pipe is controlled by a pipeline switch, raw flushing liquid is conveyed into the metal guide pipe through the flushing pipe and then conveyed to a tissue to be flushed through the metal guide pipe for flushing, and after flushing is finished, the flushing pipe is controlled to be turned off by the pipeline switch; when smoking and imbibition operation need be carried out, wash and attract pipe connection suction apparatus among the subassembly, attract pipe switch control to lead to through the pipeline, suction apparatus control metal catheter and attract intraductal negative pressure state that is in, and then extract smog and hydrops in the abdominal cavity, attract after the operation, attract the pipe through pipeline switch control and turn off.

Drawings

FIG. 1 is a schematic structural view of an electrocoagulation surgical instrument of the present invention;

FIG. 2 is an exploded view of the electrocoagulation surgical instrument of the present invention;

FIG. 3 is a schematic cross-sectional view of an electrocoagulation surgical instrument of the present invention;

FIG. 4 is a schematic view of a partial configuration of an electrocoagulation assembly of the present invention;

FIG. 5 is a partial schematic structural view of the flushing and sucking assembly of the present invention;

FIG. 6 is a schematic view of the mounting relationship of the metal conduit, conduit base and electrocoagulation head of the present invention;

FIG. 7 is a schematic structural view of the runner of the present invention;

fig. 8 is a schematic structural view of the handle of the present invention;

fig. 9 is a schematic structural view of the conductive elastic sheet of the present invention;

fig. 10 is a schematic structural view of the direction-adjusting joint of the present invention;

fig. 11 is a schematic structural view of the shunt tube of the present invention;

fig. 12 is a schematic structural view of the switch main body of the present invention;

fig. 13 is a schematic structural view of the valve cartridge of the present invention;

FIG. 14 is a schematic structural view of a bonnet according to the present invention;

fig. 15 is a schematic structural view of the push switch of the present invention.

The figures are numbered: 1. a handle; 2. an electrocoagulation head assembly; 3. flushing the suction assembly; 4. a seal member; 11. a limiting boss; 12. a guide projection; 21. an electrocoagulation head; 22. a metal conduit; 23. an electrocoagulation lead; 24. an insulating outer tube; 25. a push switch; 26. a catheter hub; 27. a rotating wheel; 28. a spacing pin; 31. a flush tube; 32. a suction tube; 34. a flush switch; 35. an attraction switch; 36. a shunt pipe; 37. a direction-adjusting joint; 221. a limiting groove; 222. a convex wall; 231. a conductive spring plate; 232. a resilient arm; 251. a pushing part; 251a, a U-shaped groove; 252. a force application part; 253. a connecting portion; 253a, a guide groove; 261. an annular limiting groove; 271. a limiting hole; 272. a rib; 241. a suction hole; 311. a valve stop; 341. a switch main body; 341a, a chute; 342. a bonnet; 342a, a limiting column; 342b, a guide rib; 343. a valve core; 343a and mounting holes; 344. a plugging section; 345. a return spring; 361. positioning the boss; 371. a first connection section; 372. a second connection section; 373. and (6) positioning a groove.

Detailed Description

The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown.

Referring to fig. 1-3, the present invention provides an electrocoagulation surgical instrument, comprising:

the handle 1 is provided with a mounting cavity;

the electrocoagulation head assembly 2 comprises an electrocoagulation head 21, a hollow metal conduit 22 and an electrocoagulation lead 23, wherein the electrocoagulation head 21 is arranged at one end of the metal conduit 22, the other end of the metal conduit 22 extends into the mounting cavity, the electrocoagulation lead 23 extends into the mounting cavity and is connected with the metal conduit 22, and the electrocoagulation lead 23 is used for transmitting electrocoagulation or cutting electric signals to the electrocoagulation head 21; and

the flushing and sucking assembly 3 comprises a flushing pipe 31, a sucking pipe 32 and a pipeline switch, wherein the flushing pipe 31 and the sucking pipe 32 extend into the mounting cavity and are arranged in the handle 1 and are communicated with the metal catheter 22, and the pipeline switch is used for controlling the connection or disconnection of the flushing pipe 31 and the sucking pipe 32.

The utility model provides an electric coagulation surgical instrument, which is provided with an electric coagulation head component 2 and a flushing and sucking component 3, integrates the functions of electric coagulation, flushing and smoking, and does not need to be frequently stretched into and pulled out of the abdominal cavity, thereby reducing the surgical infection risk of patients; the quick switching of electrocoagulation, flushing and smoking is realized, the time for replacing instruments is greatly reduced, the operation is convenient, the operation efficiency is greatly improved, and the treatment timeliness is improved. When in use, the electrocoagulation lead 23 is connected with a high-frequency power supply, and high-frequency current is conducted to the electrocoagulation head 21 through the electrocoagulation lead 23 and the metal guide tube 22 in the electrocoagulation head assembly 2 for electrocoagulation or cutting operation; the flushing pipe 31 in the flushing and sucking assembly 3 is connected with flushing liquid, the conduction of the flushing pipe 31 is controlled by a pipeline switch, raw flushing liquid is conveyed into the metal guide pipe 22 through the flushing pipe 31 and then conveyed to a tissue to be flushed through the metal guide pipe 22 for flushing, and after flushing is finished, the flushing pipe 31 is controlled to be turned off by the pipeline switch; when smoking and imbibition operation are needed, the suction tube 32 in the flushing suction assembly 3 is connected with suction equipment, the suction tube 32 is controlled to be conducted through a pipeline switch, the suction equipment controls the metal catheter 22 and the suction tube 32 to be in a negative pressure state, then smoke and effusion in the abdominal cavity are extracted, and after the suction operation is finished, the suction tube 32 is controlled to be switched off through the pipeline switch. The irrigation fluid may be saline.

The electrocoagulation surgical instrument further comprises a rotating wheel 27, the rotating wheel 27 is rotatably arranged on the handle 1, the metal conduit 22 penetrates through the rotating wheel 27 and extends into the installation cavity, a limiting structure is arranged on the metal conduit 22 and the rotating wheel 27 to limit the circumferential rotation of the rotating wheel 27 relative to the metal conduit 22, and the rotating wheel 27 can drive the metal conduit 22 to rotate so as to drive the electrocoagulation head 21 to rotate. When the rotating wheel 27 is rotated, the rotating wheel 27 rotates in the circumferential direction, the metal guide pipe 22 can be driven to rotate together, the electrocoagulation head 21 on the metal guide pipe 22 is further driven to rotate, the angle of the electrocoagulation head 21 can be adjusted as required, the electrocoagulation cutter cannot rotate integrally, and the operation is convenient and reliable to use.

Referring to fig. 2 and 7, the limiting structure includes a limiting pin 28, a limiting groove 221 disposed on the metal conduit 22, and a limiting hole 271 disposed on the rotating wheel 27, wherein the limiting pin 28 is inserted into the limiting hole 271 and is matched with a flat section formed at the limiting groove 221 of the metal conduit 22 to limit the circumferential rotation of the rotating wheel 27 relative to the metal conduit 22. The limiting pin 28 passes through the limiting hole 271 of the rotating wheel 27 and abuts against the plane surface formed at the limiting groove 221 of the metal guide tube 22, when the rotating wheel 27 is rotated, the limiting pin 28 is driven to rotate, and the limiting pin 28 acts on the plane surface, thereby driving the metal guide tube 22 to rotate together.

Referring to fig. 2 and 6, the limiting groove 221 is elongated, and the limiting groove 221 is disposed along the length direction of the metal guide tube 22, so that the metal guide tube 22 can move axially relative to the runner 27; the electrocoagulation head assembly 2 further comprises an insulating outer tube 24 and a push switch 25, the insulating outer tube 24 is sleeved outside the metal guide tube 22, the insulating outer tube 24 is fixedly arranged on the rotating wheel 27, a guide tube seat 26 is fixedly arranged at one end, extending into the mounting cavity, of the metal guide tube 22, the push switch 25 is movably arranged on the handle 1, the push switch 25 extends into the mounting cavity and is abutted against the guide tube seat 26, the push switch 25 is used for controlling the guide tube seat 26 to move, and then the metal guide tube 22 is driven to reciprocate relative to the axial direction of the insulating outer tube 24, so that the electrocoagulation head 21 extends out of or retracts into the insulating outer tube 24; a plurality of suction holes 241 are arranged at one end of the insulating outer tube 24 close to the electrocoagulation head 21. The push switch 25 can control the metal conduit 22 to move back and forth in the axial direction relative to the insulating outer tube 24, the push switch 25 is pushed, the push switch 25 drives the metal conduit 22 to move in the direction away from the handle 1, and the electrocoagulation head 21 is exposed out of the insulating outer tube 24 so as to carry out electrocoagulation operation; the push switch 25 is pulled, the push switch 25 drives the metal conduit 22 to move towards the direction close to the handle 1, and the electrocoagulation head 21 is retracted into the insulating outer tube 24 so as to carry out flushing operation and suction operation, thereby avoiding the risk caused by manual misoperation and improving the operation safety. One end of the insulating outer tube 24 close to the electrocoagulation head 21 is provided with a plurality of suction holes 241, when the electrocoagulation head 21 withdraws into the insulating outer tube 24 for imbibition operation, the insulating outer tube 24 is usually required to be contacted with the tissue wall to be imbibed, the side wall of the insulating outer tube 24 can be utilized to carry out imbibition operation by the suction holes 241, and the use is more convenient. The metal conduit 22 and the conduit seat 26 are fixed by interference extrusion or welding. The sealing member 4 is further provided on the pipe holder 26, so that when the pipe holder 26 reciprocates axially relative to the insulating outer tube 24, the pipe holder 26 is always in close contact with the inner wall of the runner 27, so as to perform a suction operation.

Referring to fig. 2, 8 and 9, the electrocoagulation lead 23 is provided with a conductive elastic sheet 231, the handle 1 is provided with a limit boss 11, the conductive elastic sheet 231 is arranged on the handle 1 through the limit boss 11, the catheter base 26 is made of metal, the conductive elastic sheet 231 is provided with an elastic arm 232, the elastic arm 232 abuts against the outer wall of the catheter base 26, and the elastic arm 232 is tightly attached to the outer wall of the catheter base 26 through elastic deformation of the elastic arm 232. When the metal conduit 22 rotates in the circumferential direction and moves in the axial direction, the conduit seat 26 is driven to move correspondingly, the conductive elastic sheet 231 is arranged on the handle 1, the position of the conductive elastic sheet 231 cannot change along with the movement of the conduit seat 26, the elastic arm 232 capable of deforming elastically is arranged on the conductive elastic sheet 231, and the elastic arm 232 is always tightly attached to the outer wall of the conduit seat 26 through the flexible matching of the elastic arm 232 and the conduit seat 26, so that the electric coagulation conductor 23 transmits an electric signal to the conductor seat.

Referring to fig. 2 and 11, the electrocoagulation surgical instrument further comprises a shunt tube 36, the shunt tube 36 is a three-way tube structure, one through hole of the shunt tube 36 is connected with the metal guide tube 22, the flushing tube 31 and the suction tube 32 are respectively connected with the other two through holes of the shunt tube 36, and the flushing tube 31 and the suction tube 32 are both communicated with the metal guide tube 22 through the shunt tube 36. The metal catheter 22 is connected with the flushing pipe 31 and the suction pipe 32 through the shunt pipe 36, the flushing process and the suction process are carried out through two pipelines, the residual exudates on the wall of the sucked pipe are not easy to flush into the operation space again, and the operation infection probability is reduced.

Referring to fig. 2 and 10, the electrocoagulation surgical instrument further comprises a direction-adjusting joint 37, wherein the direction-adjusting joint 37 is connected with the branch pipe 36 and the metal guide pipe 22, so that the connection structure formed by the branch pipe 36 and the metal guide pipe 22 is consistent with the structure of the handle 1, the direction-adjusting joint 37 comprises a first connecting section 371 and a second connecting section 372 which are connected with each other, the included angle α between the first connecting section 371 and the second connecting section 372 is 90-160 degrees, flushing liquid smoothly enters the second connecting section 372 from the first connecting section 371, the structural design of the handle 1 is reasonable, when the handle 1 is held by a hand, a groove in smooth transition is arranged at the position of the handle 1 corresponding to the tiger mouth of the hand, so that the design of the handle 1 is more in accordance with the human engineering, the distance of the part of the handle 1 provided with the electrocoagulation assembly 2 is shorter, and the single-hand operation is more convenient, and the direction-adjusting joint 37 is communicated with the metal guide pipe 22 by being inserted.

Referring to fig. 2, 3 and 5, the pipeline switch includes a flushing switch 34 and an attraction switch 35, the flushing switch 34 and the attraction switch 35 both include a switch main body 341, a bonnet 342 and a valve core 343, the switch main body 341 is of a three-way pipe structure, the switch main body 341 is disposed on one side of the handle 1, the switch main body 341 of the flushing switch 34 communicates with the flushing pipe 31 and the branch pipe 36, the switch main body 341 of the attraction switch 35 communicates with the attraction pipe 32 and the branch pipe 36, the valve core 343 is movably disposed in the switch main body 341, one end of the valve core 343 close to the branch pipe 36 is provided with a blocking portion 344 for blocking a connection interface between the switch main body 341 and the branch pipe 36, the bonnet 342 is movably disposed on the switch main body 341, the valve core 343 is connected with the valve core 343, the bonnet 342 drives the valve core 343 to move, and is used for controlling the valve core 343 to block or open a connection; the valve cap 342 is pressed down, the valve cap 342 drives the valve core 343 to move towards the direction close to the branch pipe 36, the plugging part 344 plugs the interface of the switch main body 341 communicated with the branch pipe 36, and the flushing pipe 31 or the suction pipe 32 is closed; the bonnet 342 is lifted, the bonnet 342 drives the valve core 343 to move in the direction away from the branch pipe 36, the plugging part 344 opens the interface between the switch main body 341 and the branch pipe 36, and the flushing pipe 31 or the suction pipe 32 is conducted. The flushing switch 34 and the suction switch 35 have the same structure, the flushing switch 34 controls the on/off of the flushing tube 31, and the suction switch 35 controls the on/off of the suction tube 32. In fig. 5, the irrigation tube 31 is in a connected state and the suction tube 32 is in a closed state.

Referring to fig. 5 and 13, a clamping groove is formed on the blocking portion 344, and a sealing member 4 for sealing is arranged in the clamping groove, so that the blocking portion 344 and the switch main body 341 are better sealed when the irrigation tube 31 and the suction tube 32 are in the off state, and it is ensured that substances in the irrigation tube 31 do not flow into the suction tube 32 and substances in the suction tube 32 do not flow into the irrigation tube 31 when the irrigation tube 31 and the suction tube 32 are off.

Referring to fig. 2 and 5, the pipeline switch further includes a return spring 345, and the return spring 345 is sleeved on the valve core 343 and is used for returning the valve core 343. The valve cap 342 is pressed down, the valve core 343 moves towards the direction close to the shunt pipe 36, and the return spring 345 compresses; the valve cap 342 is lifted, the reset spring 345 bounces to drive the valve core 343 and the valve cap 342 to automatically reset, and the operation is simple and more convenient.

The flushing and sucking component 3 in the application can be used on an electrocoagulation surgical instrument with electrocoagulation, flushing and sucking functions, and can also be used on a flushing aspirator which can not perform electrocoagulation operation and only has flushing and sucking functions.

Referring to fig. 2, fig. 3 and fig. 5, the flushing and sucking assembly 3 of the present invention is used for regulating and controlling flushing and sucking of a flushing aspirator or an electrocoagulation surgical instrument, the flushing aspirator and the electrocoagulation surgical instrument are both provided with a handle 1 and a flushing and sucking tube 32, the flushing and sucking assembly 3 comprises a flushing tube 31, a sucking tube 32 and a pipeline switch, the flushing tube 31 and the sucking tube 32 both extend into the handle 1 and are both communicated with the flushing and sucking tube 32, and the pipeline switch is used for controlling the connection or disconnection of the flushing tube 31 and the sucking tube 32. The flushing operation is carried out by controlling the on-off of the flushing pipe 31 through a pipeline switch; the suction tube 32 is controlled to be switched on or off through the pipeline switch to carry out smoking and imbibition operations, and the flushing process and the suction process are carried out through two pipelines, so that the residual exudates on the tube wall after suction are not easy to flush into the operation space again, and the operation infection probability is reduced; the flushing suction apparatus has flushing and suction functions, compared with the mode that the flushing operation and the suction operation are respectively carried out by adopting the flushing apparatus and the suction apparatus, the surgical instruments do not need to be repeatedly replaced, the operation is simple and quick, the operation time is shortened, and the operation risk is further reduced. When the irrigation and suction assembly 3 is used for regulating irrigation and suction of the irrigation and suction device, the irrigation and suction tube 32 can be a non-conductive pipeline; when the irrigation aspiration assembly 3 is used to regulate irrigation and aspiration of an electrocoagulation surgical instrument, the irrigation aspiration tube 32 is an electrically conductive conduit, i.e., the metal conduit 22 in the present application.

Referring to fig. 2 and 11, the irrigation and suction assembly 3 further includes a shunt tube 36, the shunt tube 36 is a three-way tube, one through hole of the shunt tube 36 is connected to the irrigation and suction tube 32, the irrigation tube 31 and the suction tube 32 are respectively connected to the other two through holes of the shunt tube 36, and the irrigation tube 31 and the suction tube 32 are both communicated with the irrigation and suction tube 32 through the shunt tube 36.

Referring to fig. 2 and 10, the irrigation and suction assembly 3 further comprises a direction-adjusting joint 37, the direction-adjusting joint 37 connects the shunt tube 36 and the irrigation and suction tube 32, so that the connection structure of the shunt tube 36 and the irrigation and suction tube 32 is consistent with the structure of the irrigation and suction device, the direction-adjusting joint 37 comprises a first connection section 371 and a second connection section 372 which are connected with each other, the included angle α between the first connection section 371 and the second connection section 372 is 90-160 degrees, the irrigation liquid smoothly enters the second connection section 372 from the first connection section 371, the structural design of the handle 1 is more reasonable, when the handle 1 is held by a hand, a smooth transition groove is arranged at the position of the handle 1 corresponding to an electrocoagulation port of the hand, the design of the handle 1 is more in line with ergonomics, and the distance of the part of the handle 1 where the head assembly 2 is installed is shorter, so that the single-hand operation is more convenient.

Referring to fig. 10 and 11, the branch pipe 36 and the direction-adjusting joint 37 are provided with positioning structures, the branch pipe 36 and the direction-adjusting joint 37 are respectively provided with a positioning boss 361 and a positioning groove 373, the positioning boss 361 is clamped in the positioning groove 373 to connect the branch pipe 36 and the direction-adjusting joint 37, so as to limit the relative positions of the branch pipe 36 and the direction-adjusting joint 37, and the connection mode is simple and has a reliable structure.

Referring to fig. 2, 3, 5 and 13, the pipeline switch includes a flushing switch 34 and an attracting switch 35, the flushing switch 34 and the attracting switch 35 both include a switch main body 341, a bonnet 342 and a valve core 343, the switch main body 341 is of a three-way pipe structure, the switch main body 341 is disposed at one side of the handle 1, the switch main body 341 of the flushing switch 34 is communicated with the flushing pipe 31 and the branch pipe 36, the switch main body 341 of the attracting switch 35 is communicated with the attracting pipe 32 and the branch pipe 36, the valve core 343 is movably disposed in the switch main body 341, one end of the valve core 343 close to the branch pipe 36 is provided with a blocking portion 344 for blocking a connection port between the switch main body 341 and the branch pipe 36, and the bonnet 342 is movably disposed on the switch main body 341 for controlling the valve core 343 to block or open a connection port between the switch main body 341 and the branch pipe; the valve cap 342 is pressed down, the plugging part 344 plugs the interface of the switch main body 341 and the branch pipe 36, and the flushing pipe 31 or the suction pipe 32 is closed; the bonnet 342 is lifted, the closing portion 344 opens the port through which the switch main body 341 communicates with the branch pipe 36, and the irrigation pipe 31 or the suction pipe 32 is connected. The flushing switch 34 and the suction switch 35 have the same structure, the flushing switch 34 controls the on/off of the flushing tube 31, and the suction switch 35 controls the on/off of the suction tube 32.

Referring to fig. 2 and 13, a clamping groove is formed on the blocking portion 344, and a sealing member 4 for sealing is arranged in the clamping groove, so that the blocking portion 344 and the switch main body 341 are better sealed when the irrigation tube 31 and the suction tube 32 are in the off state, and it is ensured that substances in the irrigation tube 31 do not flow into the suction tube 32 and substances in the suction tube 32 do not flow into the irrigation tube 31 when the irrigation tube 31 and the suction tube 32 are off.

Referring to fig. 13 and 14, a limiting column 342a is disposed in the bonnet 342, a mounting hole 343a is disposed at an end of the valve core 343 close to the bonnet 342, and the limiting column 342a is inserted into the mounting hole 343a to connect the bonnet 342 and the valve core 343.

The inner wall of the valve cap 342 is provided with a guiding rib 342b, the outer wall of the switch main body 341 is provided with a sliding groove 341a, and the valve cap 342 is slidably arranged in the sliding groove 341a through the guiding rib 342b and movably connected with the switch main body 341. The valve cap 342 moves on the switch main body 341 along the chute 341 a. The guide rib 342b is provided along the axial direction of the bonnet 342 to restrict the movement direction of the bonnet 342 so that the bonnet 342 cannot rotate circumferentially. But not limited to this, be equipped with spout 341a on the inner wall of valve cap 342, be equipped with direction muscle 342b on the outer wall of switch main part 341, valve cap 342 slides through direction muscle 342b and sets up and be connected with switch main part 341 movably in spout 341a, can make valve cap 342 can not carry out circumferential rotation equally, the utility model discloses do not injecing this.

Referring to fig. 1-3, the stop valve 311 is disposed on the flushing pipe 31 to further prevent the flushing liquid from being contaminated during the suction, and when the check valve is closed, the flushing liquid can be limited at the stop valve 311, and when the flushing operation is performed again, the stop valve 311 is opened to allow the flushing liquid to flow into the abdominal cavity from the stop valve 311, so that the flow distance is shorter, and the flushing liquid can flow out conveniently. The check valve 311 is provided with a flow rate adjusting mechanism for adjusting the flow rate of the flushing liquid in the flushing pipe 31.

The electrocoagulation head assembly 2 can be used on electrocoagulation surgical instruments with electrocoagulation, flushing and suction functions, and can also be used on electrocoagulation cutters which can not carry out flushing and suction operations and only have electrocoagulation functions.

Referring to fig. 1-3, the electrocoagulation head assembly 2 of the present invention is disposed on a handle 1 of an electrocoagulation cutter or an electrocoagulation surgical instrument for electrocoagulation cutting and hemostasis, and includes an electrocoagulation head 21, a metal conduit 22 and a rotating wheel 27, wherein the rotating wheel 27 is rotatably disposed on the handle 1, one end of the metal conduit 22 passes through the rotating wheel 27 and extends into the handle 1, the electrocoagulation head 21 is disposed at the other end of the metal conduit 22, and a limiting structure is disposed on the metal conduit 22 and the rotating wheel 27 to limit the circumferential rotation of the rotating wheel 27 relative to the metal conduit 22, and the rotating wheel 27 can drive the metal conduit 22 to rotate, thereby driving the electrocoagulation head 21 to rotate. When the rotating wheel 27 is rotated, the rotating wheel 27 rotates in the circumferential direction, the metal guide pipe 22 can be driven to rotate together, the electrocoagulation head 21 on the metal guide pipe 22 is further driven to rotate, the angle of the electrocoagulation head 21 can be adjusted as required, the electrocoagulation cutter cannot rotate integrally, and the operation is convenient and reliable to use.

Preferably, the rotation angle is 0-360 degrees, the angle adjustment range of the electrocoagulation head 21 is large, and the surgical operation is convenient.

Referring to fig. 2, 4, 6 and 7, the limiting structure includes a limiting pin 28, a limiting groove 221 disposed on the metal conduit 22, and a limiting hole 271 disposed on the rotating wheel 27, wherein the limiting pin 28 is inserted into the limiting hole 271 and is matched with a flat section formed at the limiting groove 221 of the metal conduit 22 to limit the circumferential rotation of the rotating wheel 27 relative to the metal conduit 22. The limiting pin 28 passes through the limiting hole 271 of the rotating wheel 27 and abuts against the plane surface formed at the limiting groove 221 of the metal guide tube 22, when the rotating wheel 27 is rotated, the limiting pin 28 is driven to rotate, and the limiting pin 28 acts on the plane surface, thereby driving the metal guide tube 22 to rotate together.

The limiting groove 221 is elongated, and the limiting groove 221 is disposed along the length direction of the metal guide tube 22, so that the metal guide tube 22 can move in the axial direction relative to the runner 27. The electrocoagulation head assembly 2 further comprises an outer pipe and a push switch 25, the outer pipe is sleeved outside the metal guide pipe 22, the outer pipe is fixedly arranged on the rotating wheel 27, one end of the metal guide pipe 22, extending into the handle 1, is fixedly provided with a guide pipe seat 26, the push switch 25 is arranged on the handle 1 and is abutted against the guide pipe seat 26, and the push switch 25 is used for controlling the guide pipe seat 26 to move, so that the metal guide pipe 22 is driven to do reciprocating motion relative to the axial direction of the outer pipe, and the electrocoagulation head 21 is made to extend out or withdraw the outer pipe. Pushing the push switch 25, wherein the push switch 25 drives the metal conduit 22 to move in the direction away from the handle 1, and the electrocoagulation head 21 is exposed out of the insulating outer tube 24 so as to carry out electrocoagulation operation; the push switch 25 is pulled, the push switch 25 drives the metal conduit 22 to move towards the direction close to the handle 1, the electrocoagulation head 21 is retracted into the insulating outer tube 24, and the operation safety is improved.

Referring to FIG. 2, the electrocoagulation head assembly 2 further comprises an electrocoagulation lead 23, the conduit base 26 is made of metal, and the electrocoagulation lead 23 is connected with the conduit base 26 and is used for transmitting electrocoagulation or cutting electric signals to the electrocoagulation head 21. The electrocoagulation lead 23 is connected with a high-frequency power supply, and the electrocoagulation head assembly 2 conducts high-frequency current to the electrocoagulation head 21 through the electrocoagulation lead 23 and the metal conduit 22 to carry out electrocoagulation or cutting operation.

Referring to fig. 2 and 9, the electrocoagulation lead 23 is provided with a conductive elastic sheet 231, the handle 1 is provided with a limit boss 11, the conductive elastic sheet 231 is arranged on the handle 1 through the limit boss 11, the catheter seat 26 is made of metal, the conductive elastic sheet 231 is provided with an elastic arm 232, the elastic arm 232 abuts against the outer wall of the catheter seat 26, and the elastic arm 232 is tightly attached to the outer wall of the catheter seat 26 through elastic deformation of the elastic arm 232. When the metal conduit 22 rotates in the circumferential direction and moves in the axial direction, the conduit seat 26 is driven to move correspondingly, the conductive elastic sheet 231 is arranged on the handle 1, the position of the conductive elastic sheet 231 cannot change along with the movement of the conduit seat 26, the elastic arm 232 capable of deforming elastically is arranged on the conductive elastic sheet 231, and the elastic arm 232 is always tightly attached to the outer wall of the conduit seat 26 through the flexible matching of the elastic arm 232 and the conduit seat 26, so that the electric coagulation conductor 23 transmits an electric signal to the conductor seat.

Referring to FIG. 6, a convex wall 222 is provided at one end of the metal conduit 22 close to the electrocoagulation head 21, the electrocoagulation head 21 is provided on the convex wall 222, and the electrocoagulation head 21 and the metal conduit 22 are smoothly transited through the convex wall 222. The provision of the convex wall 222 may enhance the structural strength of the junction of the electrocoagulation head 21 and the metal conduit 22, the electrocoagulation head 21 and the convex wall 222 being secured by stamping or welding.

Electrocoagulation head 21 is hook-shaped to facilitate electrocoagulation and cutting operations. The electrocoagulation head 21 is formed by stamping and bending a stainless steel material with the diameter of 0.5-3.0mm, and the length of the hook-shaped electrocoagulation head 21 is 5-50 mm.

Referring to fig. 7, a plurality of ribs 272 are formed on an outer wall of the wheel 27, and a groove for placing a finger is formed between two adjacent ribs 272 so as to rotate the wheel 27.

The pushing structure in the application can be used for electrocoagulation surgical instruments with electrocoagulation, flushing and suction functions, and can also be used for electrocoagulation cutters which can not carry out flushing and suction operations and only have the electrocoagulation function.

Please refer to fig. 2-4, the utility model discloses a push structure, including handle 1, electrocoagulation head 21, metal conduit 22, insulating outer tube 24 and push switch 25, insulating outer tube 24 is connected with handle 1, metal conduit 22 is inserted and is located in insulating outer tube 24, electrocoagulation head 21 locates the one end of metal conduit 22, the fixed pipe seat 26 that is equipped with of the other end of metal conduit 22, push switch 25 and pipe seat 26 butt, and push switch 25's middle part and handle 1 movably are connected, push switch 25 drives pipe seat 26 and moves, metal conduit 22 can take place reciprocating motion for insulating outer tube 24's axial, and then make electrocoagulation head 21 stretch out or withdraw insulating outer tube 24. The push switch 25 acts on the conduit seat 26 on the metal conduit 22, the push switch 25 is pushed and pulled, the push switch 25 can move relative to the handle 1, and further the metal conduit 22 and the conduit seat 26 can be driven to reciprocate relative to the axial direction of the insulating outer tube 24, so that the purpose that the electrocoagulation head 21 extends out of or retracts into the insulating outer tube is achieved. During the use, the handle 1 is held to the hand, and push switch 25 is located the front side of handle 1, through the finger push-and-pull push switch 25 can, can carry out one-hand operation, structural design is reasonable, easy operation, laborsaving during the use.

Referring to fig. 3, 4, 6 and 15, the push switch 25 includes a push portion 251, a force application portion 252 and a connecting portion 253, the push portion 251 and the force application portion 252 are connected by the connecting portion 253, the push portion 251 abuts against the catheter seat 26, the connecting portion 253 is movably disposed on the handle 1, the force application portion 252 is exposed outside the handle 1, and the push portion 252 pushes and pulls the force application portion 252, so that the push portion 251 drives the metal catheter 22 to move. The finger pushes and pulls the force application part 252, so that the connection part 253 moves relative to the handle 1, the pushing part 251 is driven to push and pull the conduit seat 26, the metal conduit 22 connected with the conduit seat 26 moves, and the electrocoagulation head 21 is driven to extend out of or retract into the insulating outer sleeve.

The connecting portion 253 and the handle 1 are provided with a guiding structure for guiding the push switch 25 during movement, so that the movement track of the push switch 25 can conform to the movement track of the catheter hub 26.

The connecting portion 253 is provided with a guide groove 253a, the inner wall of the handle 1 is provided with a guide protrusion 12, the guide groove 253a is slidably arranged on the guide protrusion 12 and used for guiding the push switch 25 during movement, and the guide structure is stable and reliable. But not limited to this, connecting portion 253 also can be equipped with guide protrusion 12, is equipped with guide way 253a on the inner wall of handle 1, and guide way 253a slides and sets up on guide protrusion 12 for direction when push switch 25 moves, the utility model discloses do not limit to this.

Be equipped with cyclic annular spacing groove 261 on the lateral wall of pipe seat 26, promote portion 251 card go into cyclic annular spacing groove 261 in, with pipe seat 26 butt, pipe seat 26 is simple with the connected mode of promotion portion 251, and the propelling movement structure is reliable, and for rigidity fixed connection's mode, the mode of contradicting the connection, the dismouting is simple, and is difficult to take place to damage in the junction, guarantees life.

The pushing portion 251 is provided with a U-shaped groove 251a, and the groove wall of the U-shaped groove 251a is attached to the groove wall of the annular limiting groove 261, so that the catheter holder 26 can be attached to the pushing portion 251 all the time when rotating circumferentially, the pushing portion 251 is not easy to disengage from the annular limiting groove 261, and the structure is more reliable.

Two side surfaces of the force application part 252, which are matched with fingers to push, are in a concave arc shape, so that the force application part accords with the ergonomic design and is convenient for the fingers to apply force in the pushing and pulling process.

The pushing part 251 and the force application part 252 are connected through a connecting part 253 to form a Z-shaped structure, and the device is reasonable in design structure and simple to operate.

The above is only the preferred embodiment of the present invention, and not the patent protection scope of the present invention is limited thereby, all the equivalent structure changes made by the contents of the specification and the drawings of the present invention can be directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.

Claims

1. An electrocoagulation surgical instrument, comprising:

the handle is provided with a mounting cavity;

2. The electrocoagulation surgical instrument of claim 1, further comprising a wheel rotatably disposed on the handle, the metal conduit extending through the wheel into the mounting chamber, the metal conduit and the wheel having a stop structure to limit circumferential rotation of the wheel relative to the metal conduit, rotation of the wheel driving rotation of the metal conduit and thus rotation of the electrocoagulation head.

3. The electrocoagulation surgical instrument of claim 2, wherein the limiting structure comprises a limiting pin, a limiting groove disposed on the metal conduit, and a limiting hole disposed on the wheel, the limiting pin being inserted in the limiting hole and cooperating with a flat cut surface formed at the limiting groove of the metal conduit to limit circumferential rotation of the wheel relative to the metal conduit.

4. The electrocoagulation surgical instrument of claim 3, wherein the restraint slot is elongated and is disposed along a length of the metal conduit, the metal conduit being axially movable relative to the wheel; the electrocoagulation head assembly further comprises an insulating outer tube and a push switch, the insulating outer tube is sleeved outside the metal guide tube, the insulating outer tube is fixedly arranged on the rotating wheel, a guide tube seat is fixedly arranged at one end, extending into the mounting cavity, of the metal guide tube, the push switch is movably arranged on the handle, the push switch extends into the mounting cavity and is abutted against the guide tube seat, and the push switch is used for controlling the guide tube seat to move so as to drive the metal guide tube to reciprocate relative to the axial direction of the insulating outer tube, so that the electrocoagulation head extends out of or retracts into the insulating outer tube; and one end of the insulating outer tube, which is close to the electrocoagulation head, is provided with a plurality of suction holes.

5. The electrocoagulation surgical instrument of claim 4, wherein the electrocoagulation lead is provided with a conductive elastic sheet, the handle is provided with a limit boss, the conductive elastic sheet is arranged on the handle through the limit boss, the conduit seat is made of metal, the conductive elastic sheet is provided with an elastic arm, the elastic arm abuts against the outer wall of the conduit seat, and the elastic arm is tightly attached to the outer wall of the conduit seat through elastic deformation of the elastic arm.

6. The electrocoagulation surgical instrument as set forth in any one of claims 1 to 5, further comprising a shunt tube, wherein the shunt tube is of a three-way tube structure, one through hole of the shunt tube is connected to the metal conduit, the flushing tube and the suction tube are respectively connected to the other two through holes of the shunt tube, and the flushing tube and the suction tube are both communicated with the metal conduit through the shunt tube.

7. The electrocoagulation surgical instrument of claim 6, further comprising a steering fitting connecting the shunt tube and the metal conduit such that the connection of the shunt tube and the metal conduit forms a structure that conforms to the structure of the handle; the direction-adjusting joint comprises a first connecting section and a second connecting section which are connected with each other, and the included angle between the first connecting section and the second connecting section is 90-160 degrees.

8. The electrocoagulation surgical instrument of claim 6, wherein the line switch includes a flush switch and a suction switch, the flushing switch and the suction switch both comprise a switch main body, a valve cap and a valve core, the switch main body is of a three-way pipe structure, the switch main body is arranged on one side of the handle, the switch main body of the flushing switch is communicated with the flushing pipe and the shunt pipe, the switch main body of the suction switch is communicated with the suction tube and the shunt tube, the valve core is movably arranged in the switch main body, one end of the valve core close to the shunt tube is provided with a plugging part, a port for plugging the communication between the switch main body and the shunt pipe, the valve cap is movably arranged on the switch main body, the valve core is connected with the valve cap, the valve cap drives the valve core to move, and the valve core is used for controlling the valve core to block or open a port for communicating the switch main body with the shunt pipe;

9. The electrocoagulation surgical instrument of claim 8, wherein a groove is provided in the blocking portion, and a seal is provided in the groove for sealing.

10. The electrocoagulation surgical instrument of claim 8, wherein the line switch further comprises a return spring, the return spring being sleeved on the valve core for resetting of the valve core.