CN111658128B - Multifunctional high-frequency cutter - Google Patents

Multifunctional high-frequency cutter Download PDF

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Publication number
CN111658128B
CN111658128B CN202010652112.0A CN202010652112A CN111658128B CN 111658128 B CN111658128 B CN 111658128B CN 202010652112 A CN202010652112 A CN 202010652112A CN 111658128 B CN111658128 B CN 111658128B
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Prior art keywords
handle
tube
outer sheath
knife
injection
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CN111658128A (en
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雷达
高嵩
韩贯通
钱畅
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Anrei Medical HZ Co Ltd
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Anrei Medical HZ Co Ltd
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Priority to CN202010652112.0A priority Critical patent/CN111658128B/en
Publication of CN111658128A publication Critical patent/CN111658128A/en
Priority to PCT/CN2021/104420 priority patent/WO2022007732A1/en
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14Probes or electrodes therefor
    • A61B18/1402Probes for open surgery
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/08Accessories or related features not otherwise provided for
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/10Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis
    • A61B90/11Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis with guides for needles or instruments, e.g. arcuate slides or ball joints
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00571Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
    • A61B2018/00607Coagulation and cutting with the same instrument
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/0091Handpieces of the surgical instrument or device
    • A61B2018/00916Handpieces of the surgical instrument or device with means for switching or controlling the main function of the instrument or device
    • A61B2018/00958Handpieces of the surgical instrument or device with means for switching or controlling the main function of the instrument or device for switching between different working modes of the main function
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14Probes or electrodes therefor
    • A61B18/1442Probes having pivoting end effectors, e.g. forceps
    • A61B2018/1452Probes having pivoting end effectors, e.g. forceps including means for cutting
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/08Accessories or related features not otherwise provided for
    • A61B2090/0801Prevention of accidental cutting or pricking
    • A61B2090/08021Prevention of accidental cutting or pricking of the patient or his organs
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2218/00Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2218/001Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body having means for irrigation and/or aspiration of substances to and/or from the surgical site
    • A61B2218/002Irrigation

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  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Public Health (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Veterinary Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Physics & Mathematics (AREA)
  • Otolaryngology (AREA)
  • Plasma & Fusion (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Pathology (AREA)
  • Surgical Instruments (AREA)

Abstract

The invention discloses a multifunctional high-frequency cutter, which comprises a head end assembly and a handle assembly, wherein the rear end of an outer sheath tube on the head end assembly is connected with a first handle, a spring tube is arranged in the outer sheath tube in a penetrating way, an injection tube is arranged in the spring tube in a penetrating way, 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; an O-shaped cutter is also arranged at the front part of the outer sheath tube in a penetrating way, and the O-shaped cutter is provided with an inner cavity and is communicated with the injection tube; the injection tube moves back and forth and drives the O-knife to extend and retract from the front end of the outer sheath tube. The high-frequency cutter integrates the functions of cutting, marking, electrocoagulation and liquid spraying, so that a doctor can perform corresponding operation according to the needs, the time for replacing the instrument is saved, and the operation efficiency is improved.

Description

Multifunctional high-frequency cutter
Technical Field
The invention relates to the technical field of medical appliances, in particular to a multifunctional high-frequency cutter.
Background
With the widespread development of endoscopic treatment, traditional surgical operations in some fields are increasingly replaced by endoscopic operations, which have obvious advantages of small trauma, few complications, etc., such as endoscopic tissue biopsy, endoscopic mucoectomy (Endoscopic mucosal resection, EMR), endoscopic mucosae dissection (Endoscopic submucosal dissection, ESD), etc., and time-lapse inspection, have been widely used. 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 electrotome on the market usually does not contain a water injection function, and mucus secreted by the digestive tract of a patient in operation and blood stains generated in operation often block the vision of doctors, so that the pathological tissues are difficult to clearly observe and cannot be cut by accurately cutting. At present, more and more endoscopes are provided with a water-air valve, which can be used for cleaning mucus and blood stain, but is mainly used for cleaning a lens and a light source at the head end of the soft endoscope, and the water pressure is insufficient and the water quantity is too small to be used for cleaning the digestive tract of a patient. At present, physiological saline is mainly injected into the alimentary canal cleaning or endoscope forceps canal, so that the phenomenon of repeatedly replacing instruments in operation is caused, the operation time is greatly prolonged, and pain is brought to patients.
The current common devices in the market are mainly single-function electric cutting devices, and few manufacturers provide devices with cutting and liquid spraying integrated functions. The Chinese patent with the application publication number of CN109394335A discloses a high-frequency composite electrotome which is a cutting and liquid spraying two-in-one instrument, a sliding handle is used for conducting electricity through a steel rope and driving a push-pull cutter bar, cutting and marking are achieved, and a cutter head or the cutter bar is always exposed in the using process, so that risks are caused to an operation.
The Chinese patent with the publication number of CN209107567U discloses a multifunctional high-frequency electric cutting knife which is an electric coagulation, injection and cutting three-in-one instrument, wherein the electric coagulation function adopts a forceps cup clamping structure, and the electric coagulation knife is complex in operation, relatively complex in structure and high in manufacturing cost.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides the multifunctional high-frequency cutter which integrates the functions of cutting, marking and spraying liquid to realize three-in-one, and a doctor can perform corresponding operation according to the needs, so that the time for replacing the instrument is saved, and the operation efficiency is improved.
In order to achieve the above purpose, the present invention provides the following technical solutions: a multifunctional high-frequency cutter comprises a head end assembly and a handle assembly, wherein the head end assembly comprises an outer sheath tube and an O-shaped cutter; the handle assembly comprises a first handle, a second handle, an electrode seat and an injection interface;
the first handle is in sliding connection with the second handle; meanwhile, the rear end of the outer sheath tube is connected with the first handle, a spring tube is arranged in the outer sheath tube in a penetrating manner, an injection tube is arranged in the spring tube in a penetrating manner, the injection tube is fixedly connected with the second handle, and the injection tube is communicated with an injection interface on the handle assembly; the second handle slides 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 and the O-shaped knife, 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; meanwhile, a conductive moving block is fixed on the O-shaped knife, and the O-shaped knife is connected with the conductive seat through the conductive moving block;
the rear end of the O-shaped cutter is fixedly connected with the injection tube, and the O-shaped cutter is provided with an inner cavity and is communicated with the injection tube; the injection tube moves back and forth and drives the O-knife to extend and retract from the front end of the outer sheath tube.
Preferably, the rear end of the outer sheath tube is slidably connected to the first handle.
Preferably, the O-knife penetrates the conductive seat.
Preferably, an outer sheath moving block is fixed at the rear end of the outer sheath pipe, and the rear end of the outer sheath moving block is in sliding connection with the first handle sleeve.
Preferably, the sheath tube is fixedly connected with the sheath moving block through a sheath joint, the outer peripheral wall of the sheath joint forms a tooth 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 the front end of the O-knife.
Preferably, the front end of the O-shaped cutter extends along the radial direction of the O-shaped cutter to form a radial cutter body, the front part of the O-shaped cutter is also fixedly provided with a fixing sheet, and the ceramic head is clamped between the radial cutter body and the fixing sheet.
Preferably, the injection port is fixed to the second handle.
Preferably, the electrode holder is connected with the first handle through clamping, interference fit or threads.
In summary, the invention has the following beneficial effects:
1. the high-frequency cutter integrates the functions of cutting, marking, electrocoagulation and spraying liquid into a whole, so that doctors can perform corresponding operations according to the needs, and the pathological tissues can be marked; but also can spray physiological saline to clean human tissues; the mucosal tissue may also be cut and dissected; thus saving the time for replacing the instrument, improving the operation efficiency and reducing the pain of the patient to the maximum extent;
2. the reverse movement of the corresponding driving piece is adopted between the electrocoagulation and the electric cutting functions, so that the accidental start 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 high-frequency cutter has simpler internal structure and low manufacturing cost.
Drawings
FIG. 1 is a schematic view of the structure of the high frequency tool;
FIG. 2 is a schematic view of the structure of the high frequency cutter in 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 assembled with the sheath block;
FIG. 6 is a cross-sectional view of the handle assembly;
FIG. 7 is a schematic view of the high frequency knife in a spray or marking function;
FIG. 8 is a cross-sectional view of the head end assembly with the high frequency knife in a spray or marking function;
FIG. 9 is a schematic structural view of the high frequency tool in the electrocoagulation function;
fig. 10 is a cross-sectional view of the head end assembly with the high frequency tool in the electrocoagulation function.
Reference numerals: 10. a headend assembly; 11. an O-knife; 12. a ceramic head; 13. a fixing piece; 14. a conductive base; 15. a conductive moving block; 16. an injection port; 21. an outer sheath; 22. a spring tube; 23. a syringe; 24. an outer sheath joint; 25. an injection catheter; 30. a handle assembly; 31. an outer sheath moving block; 34. a connector; 35. a first handle; 36. a double finger handle; 37. thumb ring.
Detailed Description
The invention is further described with reference to the accompanying drawings.
The embodiment discloses a multifunctional high-frequency cutter, which comprises a head end assembly 10 and a handle assembly 30, wherein the head end assembly 10 comprises an outer sheath tube 21 and an O-shaped cutter 11 as shown in figures 1-5; the handle assembly 30 comprises a first handle 35, a second handle, an electrode holder and an injection interface 16, wherein a connector 34 is arranged on the electrode holder, and the electrode holder is connected with the first handle 35 through clamping, interference fit or screw threads; the first handle 35 is slidably connected to the second handle; meanwhile, the rear end of the outer sheath tube 21 is connected with the second handle, a spring tube 22 is penetrated in the outer sheath tube 21, an injection tube 23 is penetrated in 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 interface 16 on the second handle through an injection catheter 25; the second handle moves back and forth and drives the syringe 23 to move back and forth; the front part of the outer sheath tube 21 is penetrated with a conductive seat 14 and an O-shaped knife, 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, a conductive moving block 15 is also fixed on the O-shaped knife 11, 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-knife 11 is fixedly connected with the injection tube 23, and the O-knife 11 is provided with an inner cavity and is communicated with the injection tube 23; the syringe 23 moves back and forth and drives 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 is provided with an inner cavity and is communicated with the injection tube 23, the rear end of the injection tube 23 is communicated with the injection interface 16, at this time, the injection interface 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 interface 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 outer sheath 21 is pushed to move forward, so that the outer sheath 21 wraps the conductive seat 14; pushing the second handle forward along the first handle 35, the second handle moving forward and driving the syringe 23 and the O-blade 11 to move forward, so that the O-blade 11 extends out from the front end of the outer sheath 21, and at this time, the connector 34, the spring tube 22, the conductive base 14, the conductive moving block and the O-blade 11 form a communication circuit, and high-frequency is electrically connected to the connector 34 to perform the cutting operation of the O-blade 11;
marking function: as shown in fig. 7 and 8, the outer sheath 21 is pushed forward, so that the outer sheath 21 wraps the conductive socket 14; pulling the second handle back along the first handle 35, the second handle moves back and drives the syringe 23 and the O-knife 11 to move back, so that the O-knife 11 is retracted into the conductive seat 14 to expose only the bit of the O-knife 11, and 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, and high frequency is electrically connected to the connector 34 for marking operation of the O-knife 11.
The doctor can perform corresponding operation according to the needs, and can mark the pathological tissues; but also can spray physiological saline to clean human tissues; the mucosal tissue may also be cut and dissected; thus saving the time for replacing the instrument, improving the operation efficiency and reducing the pain of the patient to the maximum extent.
In an initial state, namely, the outer sheath tube 21 wraps the conductive seat 14, meanwhile, the O-knife 11 is retracted into the conductive seat 14, only the cutter head of the O-knife 11 is exposed, the cutter can realize a liquid spraying function and a marking function without being driven by an additional driving piece, operation steps of doctors are reduced, operation efficiency is improved, when an electric cutting function is carried out, only the second handle needs to be pushed to move forward along the first handle, the O-knife 11 extends out from the front end of the outer sheath tube 21, and meanwhile, high-frequency electricity is connected to the connector 34, so that the O-knife 11 cutting operation can be carried out, the operation is simple and convenient, and misoperation phenomenon is not easy to occur.
To further enhance the utility of the high frequency knife, the rear end of the sheath 21 is slidably connected to the first handle, and the sheath 21 moves rearward and exposes the conductive socket 14. Therefore, the electric coagulation function is increased by optimizing the technical scheme; electrocoagulation function: as shown in fig. 9 and 10, the outer sheath 21 is pulled to move backward, exposing the conductive socket 14; the second handle is pulled backwards along the first handle, 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 to expose only the bit of the O-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. By the reverse movement of the corresponding driving piece between the electrocoagulation and the electric cutting functions, the accidental start 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.
Further, as shown in fig. 5 and 6, a sheath moving block 31 is fixed to the rear end of the sheath tube 21, and the rear end of the sheath moving block 31 is slidably connected to the first handle 35. The sheath tube 21 is fixedly connected with the sheath moving block 31 through the sheath joint 24, the outer peripheral wall of the sheath joint 24 is formed into a tooth shape, and the sheath tube 21 is sleeved on the outer peripheral wall of the sheath joint 24. In this way, the assembly of the outer sheath 21 with the primary handle is facilitated. Preferably, the sheath moving block 31 moves back against the first handle and exposes the conductive socket 14. Thus, the sheath moving block 31 moves backward against the first handle and restricts further backward movement of the sheath 21, so that the conductive holder 14 is completely exposed at the front end of the sheath 21.
The first handle 35 includes 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 front end of the O-blade 11; the front end of the O-blade 11 extends along the radial direction of the O-blade 11 to form a radial blade body, a fixing piece 13 is fixed at the front part of the O-blade 11, and the ceramic head 12 is clamped between the radial blade body and the fixing piece 13.
The directions in this embodiment are merely for convenience in describing the positional relationship between the respective members and the relationship of mutual cooperation. The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.

Claims (6)

1. A high frequency cutter with multiple functions, comprising a head end assembly (10) and a handle assembly (30), wherein the head end assembly (10) comprises an outer sheath tube (21) and an O-cutter (11); the handle assembly (30) comprises a first handle (35), a second handle, an electrode holder and an injection interface (16); the method is characterized in that:
the first handle (35) is in sliding connection with the second handle; meanwhile, the rear end of the outer sheath tube (21) is connected with the first handle (35), a spring tube (22) is arranged in the outer sheath tube (21) in a penetrating manner, an injection tube (23) is arranged in the spring tube (22) in a penetrating manner, the injection tube (23) is fixedly connected with the second handle, and the injection tube (23) is communicated with an injection interface (16) on the handle assembly (30); the second handle slides 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 the O-shaped knife (11) in a penetrating way, the front end of the spring tube (22) is fixedly connected with the conductive seat (14), and the rear end of the spring tube (22) is connected with a connector (34) on the electrode seat; meanwhile, a conductive moving block (15) is fixed on the O-shaped cutter (11), and the O-shaped cutter (11) is in conductive connection 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 is communicated with the injection tube (23); the injection tube (23) moves back and forth and drives the O-knife (11) to extend and retract from the front end of the outer sheath tube (21);
wherein the O-knife (11) penetrates through the conductive seat (14); the rear end of the outer sheath tube (21) is in sliding connection with the first handle (35); the front end part of the O-shaped cutter (11) is also fixed with a ceramic head (12); the front end part of the O-shaped cutter (11) extends along the radial direction of the O-shaped cutter (11) to form a radial cutter body, a fixing sheet (13) is fixed at the front part of the O-shaped cutter (11), and the ceramic head (12) is clamped between the radial cutter body and the fixing sheet (13);
pulling the outer sheath tube (21) to move backwards so as to expose the conductive seat (14); the second handle is pulled backwards along the first handle, 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 knife head of the O-knife (11) is exposed, and at the moment, the connector (34), the spring tube (22), the conductive seat (14) and the conductive moving block (15) form a communication circuit to perform an electrocoagulation function.
2. The high-frequency tool with multiple functions according to claim 1, characterized in that: the rear end of the sheath tube (21) is fixedly provided with a sheath moving block (31), and the rear end of the sheath moving block (31) is in sliding connection with a first handle (35) plug bush.
3. The high-frequency tool with multiple functions according to claim 2, characterized in that: 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).
4. The high-frequency tool with multiple functions according to claim 1, characterized in that: 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 double-finger grip (36).
5. The high-frequency tool with multiple functions according to claim 1, characterized in that: the injection interface (16) is fixed to the second handle.
6. The high-frequency tool with multiple functions according to claim 1, characterized in that: the electrode holder is connected with the first handle (35) through clamping, interference fit or threads.
CN202010652112.0A 2020-07-08 2020-07-08 Multifunctional high-frequency cutter Active CN111658128B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202010652112.0A CN111658128B (en) 2020-07-08 2020-07-08 Multifunctional high-frequency cutter
PCT/CN2021/104420 WO2022007732A1 (en) 2020-07-08 2021-07-05 High-frequency tool having multiple functions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010652112.0A CN111658128B (en) 2020-07-08 2020-07-08 Multifunctional high-frequency cutter

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CN111658128B true CN111658128B (en) 2023-09-22

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WO (1) WO2022007732A1 (en)

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CN111658128B (en) * 2020-07-08 2023-09-22 安瑞医疗器械(杭州)有限公司 Multifunctional high-frequency cutter
CN112545641B (en) * 2020-11-27 2024-10-01 深圳开立生物医疗科技股份有限公司 High-frequency electric knife
CN112790856B (en) * 2021-01-18 2022-04-05 山东第一医科大学附属肿瘤医院(山东省肿瘤防治研究院、山东省肿瘤医院) Disposable mucosa incision knife with injection needle and use method
CN113229891B (en) * 2021-05-21 2024-03-12 以诺康医疗科技(苏州)有限公司 Multifunctional surgical instrument
CN113081245A (en) * 2021-05-25 2021-07-09 诸暨市鹏天医疗器械有限公司 Multifunctional incision knife
CN114404025A (en) * 2022-01-22 2022-04-29 江苏邦士医疗科技有限公司 Flexible plasma electrode
CN118121270A (en) * 2024-03-27 2024-06-04 江苏唯德康医疗科技有限公司 Mucous membrane incision sword

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