CN213430509U

CN213430509U - Multifunctional high-frequency cutter

Info

Publication number: CN213430509U
Application number: CN202021332525.2U
Authority: CN
Inventors: 雷达; 高嵩; 韩贯通; 钱畅
Original assignee: Anrei Medical HZ Co Ltd
Current assignee: Anrei Medical HZ Co Ltd
Priority date: 2020-07-08
Filing date: 2020-07-08
Publication date: 2021-06-15
Anticipated expiration: 2030-07-08

Abstract

The utility model discloses a multifunctional high-frequency cutter, which comprises a head end component and a handle component, wherein the rear end of an outer sheath tube on the head end component is connected with a first handle, a spring tube is arranged in the outer sheath tube, an injection tube is arranged in the spring tube, and the injection tube is fixedly connected with a second handle; the second handle moves back and forth and drives the injection tube to move back and forth; the front part of the outer sheath tube is penetrated with a conductive seat, the front end of the spring tube is fixedly connected with the conductive seat, and the rear end of the spring tube is connected with a connector on the electrode seat; the front part of the outer sheath tube is also penetrated with an O-shaped cutter, and the O-shaped cutter is provided with an inner cavity and is communicated with the injection tube; the syringe moves back and forth and drives the O-knife to extend and retract from the front end of the outer sheath. The high-frequency cutter integrates cutting, marking, electrocoagulation and liquid spraying functions to realize four-in-one, so that doctors can perform corresponding operations as required, the time for replacing instruments is saved, and the operation efficiency is improved.

Description

Multifunctional high-frequency cutter

Technical Field

The utility model relates to the technical field of medical equipment, more specifically say, it relates to a high frequency cutter with it is multi-functional.

Background

With the wide development of Endoscopic treatment, traditional surgical operations in some fields are replaced by Endoscopic operations more and more, and Endoscopic operations have the obvious advantages of small wound, few complications and the like, and common operations such as Endoscopic tissue biopsy, Endoscopic Mucosal Resection (EMR), Endoscopic mucosal dissection (ESD) and the like are also tested for a long time and are widely applied. The high-frequency electrotome is used as an indispensable surgical instrument for stripping mucous membrane and realizing the whole excision of lesion tissues.

The high-frequency electric knife on the market does not usually have the water injection function, and mucus secreted by the digestive tract of a patient in the operation and blood dirt generated in the operation often block the visual field of a doctor, so that pathological tissues are difficult to clearly observe and cannot be accurately cut by cutting. At present, more and more endoscopes are provided with water and gas valves, can be used for cleaning mucus and blood stains, but are mainly used for cleaning lenses at the head end of a soft endoscope and a light source, and cannot be used for cleaning the digestive tract of a patient due to insufficient water pressure and too small water amount. At present, the cleaning of the digestive tract is mainly realized by injecting physiological saline into the endoscope channel, so that the phenomenon of repeatedly replacing instruments in the operation is caused, the operation time is greatly increased, and the pain is brought to a patient.

The common instruments in the market at present are mainly single-function electric cutting instruments, and few manufacturers provide instruments with cutting and liquid spraying integrated functions. Chinese patent application publication No. CN109394335A discloses a high-frequency composite electric knife, which is a cutting and liquid-spraying two-in-one instrument, and uses a sliding handle to conduct electricity through a steel rope and drive a push-pull knife rod, so as to realize cutting and marking, and a knife head or the knife rod can be exposed during use, thereby causing risks for operations.

Chinese patent No. CN209107567U discloses a multifunctional high-frequency electric incision knife, which is an electric coagulation, injection and incision three-in-one instrument, wherein the electric coagulation function adopts a forceps cup clamping structure, and the operation is complicated, the structure is complex, and the manufacturing cost is high.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model provides a high frequency cutter with it is multi-functional, this high frequency cutter has integrated cutting, mark and hydrojet function and has realized trinity, and the doctor can carry out corresponding operation as required, so saved the time of changing the apparatus, has improved operation efficiency.

In order to achieve the above purpose, the utility model provides a following technical scheme: a multifunctional high-frequency cutter comprises a head end component and a handle component, wherein the head end component comprises an outer sheath tube and an O-shaped cutter; the handle assembly comprises a first handle, a second handle and an electrode holder;

the first handle is connected with the second handle in a sliding manner, and the rear end of the outer sheath tube is connected with the first handle; the front part of the outer sheath tube is provided with a conductive seat and the O-shaped knife in a penetrating manner, the inner part of the outer sheath tube is also provided with a spring tube in a penetrating manner, the front end of the spring tube is fixedly connected with the conductive seat, the rear end of the spring tube is connected with a connector on the electrode seat, meanwhile, the O-shaped knife is also fixedly provided with a conductive moving block, and the O-shaped knife is connected with the conductive seat through the conductive moving block;

the rear end of the O-shaped knife is fixedly connected with the second handle through the O-shaped knife connecting piece, and the second handle slides back and forth and drives the O-shaped knife to extend out and retract from the front end of the outer sheath tube.

Preferably, the rear end of the outer sheath tube is slidably connected with the first handle.

Preferably, the handle assembly further comprises an injection port, the O-knife connecting piece is an injection tube, the injection tube is fixedly connected with the second handle, and the injection tube is communicated with the injection port on the handle assembly; the O-shaped cutter is provided with an inner cavity and is communicated with the injection pipe.

Preferably, the O-knife penetrates through the conductive seat.

Preferably, a sheath moving block is fixed to the rear end of the sheath tube, and the rear end of the sheath moving block is slidably connected to the first handle sleeve.

Preferably, the outer sheath tube is fixedly connected to the sheath moving block through a sheath joint, an outer peripheral wall of the sheath joint is formed in a toothed shape, and the sheath tube is sleeved on the outer peripheral wall of the sheath joint.

Preferably, the first handle comprises a handle body and a thumb ring fixed at the rear end of the handle body; the second handle is a double-finger handle.

Preferably, a ceramic head is further fixed to a distal end portion of the O-knife.

Preferably, the front end of the O-knife extends in the radial direction of the O-knife to form a radial knife body, the front part of the O-knife is further fixed with a fixing piece, and the ceramic head is clamped between the radial knife body and the fixing piece.

Preferably, the electrode holder is connected with the first handle through clamping, interference fit or threads.

To sum up, the utility model discloses following beneficial effect has:

1. the high-frequency cutter integrates cutting, marking, electrocoagulation and liquid spraying functions to realize four-in-one, and doctors can perform corresponding operations as required to mark pathological tissues; and can spray physiological saline to clean human tissues; can also be used for cutting and stripping mucosa tissue; therefore, the time for replacing the instrument is saved, the operation efficiency is improved, and the pain of the patient is reduced to the maximum extent;

2. the electric coagulation and the electric cutting function are reversely moved by the corresponding driving piece, so that the accidental starting of the standby function can be completely eliminated, and the accidental injury to a patient or the interference to the operation process can be avoided;

3. the internal structure of the high-frequency cutter is simpler, and the manufacturing cost is low.

Drawings

FIG. 1 is a schematic structural view of the high-frequency tool;

FIG. 2 is a schematic structural view of the high-frequency cutter in a cutting function;

FIG. 3 is a cross-sectional view of FIG. 2;

FIG. 4 is a cross-sectional view of the head end assembly;

FIG. 5 is a cross-sectional view of the sheath and sheath moving block assembly;

FIG. 6 is a cross-sectional view of the handle assembly;

FIG. 7 is a schematic view of the high-frequency cutter in a liquid ejecting or marking function;

FIG. 8 is a sectional view of the head assembly with the high-frequency cutter in a liquid spraying or marking function;

FIG. 9 is a schematic view of the construction of the high frequency cutter in electrocoagulation function;

FIG. 10 is a cross-sectional view of the head end assembly with the high frequency cutter in electrocoagulation function.

Reference numerals: 10. a head end assembly; 11. o, cutting; 12. a ceramic head; 13. a limiting sheet; 14. a conductive seat; 15. a conductive moving block; 16. an injection port; 21. an outer sheath tube; 22. a spring tube; 23. an injection tube; 24. an outer sheath connector; 25. an injection catheter; 30. a handle assembly; 31. a sheath moving block; 34. a connector; 35. a first handle; 36. a double-finger handle; 37. a thumb ring.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

The embodiment discloses a multifunctional high-frequency cutter, as shown in fig. 1 to 5, which comprises a head end assembly 10 and a handle assembly 30, wherein the head end assembly 10 comprises an outer sheath 21 and an O-knife 11; the handle assembly 30 comprises a first handle 35, a second handle, an electrode holder and an injection interface 16, wherein the electrode holder is provided with a connector 34, and the electrode holder is connected with the first handle 35 through clamping, interference fit or threads; the first handle 35 is slidably connected with the second handle; meanwhile, the rear end of the outer sheath tube 21 is connected with the second handle, a spring tube 22 penetrates through the outer sheath tube 21, an injection tube 23 penetrates through the spring tube 22, the injection tube 23 is fixedly connected with the second handle, and the injection tube 23 is communicated with an injection port 16 on the second handle through an injection catheter 25; the second handle moves back and forth and drives the injection tube 23 to move back and forth; the front part of the outer sheath tube 21 is provided with a conductive seat 14 and an O-shaped knife in a penetrating way, the O-shaped knife 11 penetrates through the conductive seat 14, the front end of the spring tube 22 is fixedly connected with the conductive seat 14, the rear end of the spring tube 22 is connected with a connector 34 on the electrode seat, meanwhile, the O-shaped knife 11 is also fixedly provided with a conductive moving block 15, and the O-shaped knife 11 is connected with the conductive seat 14 through the conductive moving block 15; the rear end of the O-shaped knife 11 is fixedly connected with the injection tube 23, and the O-shaped knife 11 is provided with an inner cavity and communicated with the injection tube 23; the syringe 23 moves back and forth and brings the O-knife 11 to extend and retract from the front end of the outer sheath 21.

Liquid spraying function: as shown in fig. 7 and 8, the rear end of the O-knife 11 is fixedly connected with the injection tube 23, the O-knife 11 has an inner cavity and is communicated with the injection tube 23, the rear end of the injection tube 23 is communicated with the injection port 16, at this time, the injection port 16, the injection tube 23 and the inner cavity of the O-knife 11 are communicated to form a liquid channel, the injector is fixed at the injection port 16, and liquid can be sprayed from the front end of the O-knife 11;

cutting function: as shown in fig. 2, 3 and 4, the sheath 21 is pushed forward, so that the sheath 21 wraps the conductive seat 14; the second handle is pushed forwards along the first handle 35, the second handle moves forwards and drives the injection tube 23 and the O-knife 11 to move forwards, so that the O-knife 11 extends out of the front end of the outer sheath tube 21, and at the moment, the connector 34, the spring tube 22, the conductive seat 14, the conductive moving block and the O-knife 11 form a communication circuit to electrically connect high frequency to the connector 34 to perform O-knife 11 cutting operation;

marking function: as shown in fig. 7 and 8, the sheath tube 21 is pushed to move forward, so that the sheath tube 21 wraps the conductive seat 14; the second handle is pulled backwards along the first handle 35, the second handle moves backwards and drives the injection tube 23 and the O-knife 11 to move backwards, so that the O-knife 11 is retracted into the conductive seat 14 and only the cutter head of the O-knife 11 is exposed, at this time, the connector 34, the spring tube 22, the conductive seat 14, the conductive moving block and the O-knife 11 form a communication circuit, high-frequency electricity is connected to the connector 34, and the marking operation of the O-knife 11 is performed.

Doctors can perform corresponding operations as required, namely marking the lesion tissues; and can spray physiological saline to clean human tissues; can also be used for cutting and stripping mucosa tissue; therefore, the time for replacing the instrument is saved, the operation efficiency is improved, and the pain of the patient is reduced to the maximum extent.

In the initial state, outer sheath 21 wraps up conducting seat 14 promptly, O sword 11 withdraws to only expose O sword 11 tool bit in conducting seat 14 simultaneously, this cutter need not carry out the drive of extra driving piece and can realize hydrojet function and marking function, doctor's operating procedure has been reduced, the efficiency of the operation has been improved, when carrying out the electric cutting function, only need promote the second handle and move along first handle forward, make O sword 11 stretch out from the front end of outer sheath 21, connect connector 34 with the high frequency electricity simultaneously, can carry out O sword 11 cutting operation, its operation is simple and convenient, the maloperation phenomenon is difficult to appear.

In order to further improve the practicability of the high-frequency cutter, the rear end of the outer sheath 21 is connected with the first handle in a sliding way, and the outer sheath 21 moves backwards and exposes the conductive seat 14. Therefore, the electrocoagulation function is increased by optimizing on the basis of the technical scheme; an electrocoagulation function: as shown in fig. 9 and 10, the sheath 21 is pulled to move backward, so that the conductive socket 14 is exposed; and (3) pulling the second handle backwards along the first handle, wherein the second handle backwards moves and drives the injection tube 23 and the O-shaped knife 11 to backwards move, so that the O-shaped knife 11 is retracted into the conductive seat 14 to only expose the knife head of the O-shaped knife 11, and at the moment, the connector 34, the spring tube 22, the conductive seat 14 and the conductive moving block form a communication circuit to perform the electrocoagulation function. The electric coagulation and cutting functions are performed by the reverse movement of the corresponding driving member, so that the accidental starting of the standby function can be completely eliminated, and the accidental injury to the patient or the interference to the surgical process can be avoided.

Further, as shown in fig. 5 and 6, a sheath moving block 31 is fixed to a rear end of the sheath tube 21, and a rear end of the sheath moving block 31 is slidably connected to the first handle 35. The outer sheath tube 21 is fixedly connected to the sheath moving block 31 through the sheath joint 24, the outer peripheral wall of the sheath joint 24 is formed in a tooth shape, and the outer sheath tube 21 is sleeved on the outer peripheral wall of the sheath joint 24. Thus, the assembly of the sheath tube 21 and the first handle is facilitated. Preferably, the sheath moving block 31 is moved rearwardly against the first handle and exposes the conductive socket 14. Thus, the sheath moving block 31 moves backward to abut against the first handle and restricts further backward movement of the sheath 21, so that the conductive socket 14 is completely exposed at the front end of the sheath 21.

The first handle 35 comprises a handle body and a thumb ring fixed at the rear end of the handle body; the second handle is a two finger grip 36. The doctor can conveniently operate with one hand.

In addition, as shown in fig. 4, a ceramic head 12 is fixed to the tip end of the O-knife 11; the front end of the O-knife 11 extends along the radial direction of the O-knife 11 to form a radial knife body, the front part of the O-knife 11 is also fixed with a fixing piece 13, and the ceramic head 12 is clamped between the radial knife body and the fixing piece 13.

The directions given in the present embodiment are merely for convenience of describing positional relationships between the respective members and the relationship of fitting with each other. It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A high-frequency cutter with multiple functions, comprising a head end component (10) and a handle component (30), wherein the head end component (10) comprises an outer sheath tube (21) and an O-shaped knife (11); the handle assembly (30) comprises a first handle (35), a second handle and an electrode holder; the method is characterized in that:

the first handle (35) is connected with the second handle in a sliding way, and the rear end of the outer sheath tube (21) is connected with the first handle (35); the front part of the outer sheath tube (21) is provided with a conductive seat (14) and the O-shaped knife (11) in a penetrating manner, the inner part of the outer sheath tube (21) is also provided with a spring tube (22) in a penetrating manner, the front end of the spring tube (22) is fixedly connected with the conductive seat (14), the rear end of the spring tube (22) is connected with a connector (34) on the electrode seat, meanwhile, the O-shaped knife (11) is also fixedly provided with a conductive moving block (15), and the O-shaped knife (11) is connected with the conductive seat (14) through the conductive moving block (15);

the rear end of the O-shaped knife (11) is fixedly connected with a second handle through an O-shaped knife connecting piece, and the second handle slides back and forth and drives the O-shaped knife (11) to extend out and retract from the front end of the outer sheath tube (21).

2. The high-frequency tool with multiple functions as set forth in claim 1, wherein: the rear end of the outer sheath tube (21) is connected with the first handle (35) in a sliding manner.

3. The high-frequency tool with multiple functions as set forth in claim 1 or 2, wherein: the handle assembly (30) further comprises an injection interface (16), the O-knife connecting piece is an injection tube (23), the injection tube (23) is fixedly connected with the second handle, and the injection tube (23) is communicated with the injection interface (16) on the handle assembly (30); the O-knife (11) is provided with an inner cavity and communicated with the injection tube (23).

4. The high-frequency tool with multiple functions as set forth in claim 3, wherein: the O-shaped knife (11) penetrates through the conductive seat (14).

5. The high-frequency tool with multiple functions as set forth in claim 1, wherein: the rear end of the outer sheath tube (21) is fixed with an outer sheath moving block (31), and the rear end of the outer sheath moving block (31) is connected with the first handle (35) in an inserting and sleeving manner in a sliding manner.

6. The high-frequency tool with multiple functions as set forth in claim 5, wherein: the outer sheath tube (21) is fixedly connected with the outer sheath moving block (31) through an outer sheath joint (24), the outer peripheral wall of the outer sheath joint (24) is toothed, and the outer sheath tube (21) is sleeved on the outer peripheral wall of the outer sheath joint (24).

7. The high-frequency tool with multiple functions as set forth in claim 1, wherein: the first handle (35) comprises a handle body and a thumb ring (37) fixed at the rear end of the handle body; the second handle is a two-finger grip (36).

8. The high-frequency tool with multiple functions as set forth in claim 1, wherein: a ceramic head (12) is also fixed at the front end part of the O-shaped knife (11).

9. The high-frequency tool with multiple functions as set forth in claim 8, wherein: the front end part of the O-shaped knife (11) extends along the radial direction of the O-shaped knife (11) to form a radial knife body, a fixing piece (13) is further fixed at the front part of the O-shaped knife (11), and the ceramic head (12) is clamped between the radial knife body and the fixing piece (13).

10. The high-frequency tool with multiple functions as set forth in claim 1, wherein: the electrode holder is connected with the first handle (35) through clamping, interference fit or threads.