CN115429421A - Electric coagulation knife structure - Google Patents

Electric coagulation knife structure Download PDF

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Publication number
CN115429421A
CN115429421A CN202211120040.0A CN202211120040A CN115429421A CN 115429421 A CN115429421 A CN 115429421A CN 202211120040 A CN202211120040 A CN 202211120040A CN 115429421 A CN115429421 A CN 115429421A
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CN
China
Prior art keywords
way joint
spring
inner pipe
pipe
inner tube
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Pending
Application number
CN202211120040.0A
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Chinese (zh)
Inventor
张宏涛
钱建民
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Haize Clinical Research Institute Wuxi Co ltd
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Haize Clinical Research Institute Wuxi Co ltd
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Publication date
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Priority to CN202211120040.0A priority Critical patent/CN115429421A/en
Publication of CN115429421A publication Critical patent/CN115429421A/en
Pending legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/71—Suction drainage systems
    • A61M1/77—Suction-irrigation systems
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/71—Suction drainage systems
    • A61M1/78—Means for preventing overflow or contamination of the pumping systems
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/84—Drainage tubes; Aspiration tips
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/10—Tube connectors; Tube couplings
    • A61M39/105—Multi-channel connectors or couplings, e.g. for connecting multi-lumen tubes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00053—Mechanical features of the instrument of device
    • A61B2018/00172—Connectors and adapters therefor
    • A61B2018/00178—Electrical connectors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00053—Mechanical features of the instrument of device
    • A61B2018/00184—Moving parts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
    • A61B2018/00589—Coagulation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
    • A61B2018/00601—Cutting
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/0091—Handpieces of the surgical instrument or device
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2218/00—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2218/001—Details 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
    • A61B2218/002—Irrigation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2218/00—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2218/001—Details 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
    • A61B2218/007—Aspiration
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/22—Arrangements of medical sensors with cables or leads; Connectors or couplings specifically adapted for medical sensors
    • A61B2562/225—Connectors or couplings
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M2039/0009—Assemblies therefor designed for particular applications, e.g. contrast or saline injection, suction or irrigation
    • A61M2039/0018—Assemblies therefor designed for particular applications, e.g. contrast or saline injection, suction or irrigation designed for flushing a line, e.g. by a by-pass

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

Abstract

The invention relates to an electrocoagulation knife structure, which comprises an inner tube and a three-way joint; the inner pipe is a straight pipe with two open ends, the front end of the inner pipe is provided with a tool bit, and the rear end of the inner pipe is sleeved with a drum spring structure; the inner tube, the cutter head and the drum spring structure are all made of conductive materials; the drum spring structure is provided with a lead connected with a power supply; the drum spring structure is connected with the first end of the three-way joint; the rear end of the inner pipe is hermetically connected with an inner port of the first end of the three-way joint; the front part of the inner tube is sleeved with an insulated outer tube; the middle part of the inner pipe is sleeved with a roller; and the second end and the third end of the three-way joint are respectively connected with a negative pressure suction device and a flushing device. The invention can combine the cutting function of the electrocoagulation knife with the suction and flushing functions, thereby creating great convenience for the operation of surgeons and improving the operation efficiency.

Description

Electric coagulation knife structure
Technical Field
The invention relates to a medical instrument, in particular to an electrocoagulation knife for operation, and specifically relates to an electrocoagulation knife structure.
Background
The electric coagulation knife is an electric surgical instrument for cutting tissue instead of a mechanical scalpel, and the principle of the electric coagulation knife is that high-frequency high-voltage current is generated by the tip of an effective electrode and is contacted with limbs to heat local tissues, so that the muscle tissues are separated and coagulated, and the aims of cutting and rapid hemostasis are fulfilled.
Traditional electricity congeals sword simple structure, the function is single, through the circular telegram to the tool bit pole, makes to produce high frequency high voltage current on its tool bit, heats focus department, realizes the cutting. In the meantime, since the limb tissues are easily heated to generate smoke, the operation field of vision is affected, so that corresponding suction and irrigation instruments are required to be additionally arranged at present to clean the operation site and timely suck away the smoke. Therefore, the operation doctor needs to frequently replace the instruments in the operation process, the operation is inconvenient, and the operation efficiency is influenced. Therefore, an electrocoagulation knife with comprehensive flushing, sucking and sucking functions is urgently needed to be designed so as to better meet the requirements of operations.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides an electrocoagulation knife structure which can combine the cutting function with the suction and flushing function of the electrocoagulation knife, creates great convenience for the operation of surgeons, and improves the operation efficiency.
The technical scheme of the invention is as follows:
an electrocoagulation knife structure comprises an inner tube and a three-way joint; the inner pipe is a straight pipe with two open ends, the front end of the inner pipe is provided with a tool bit, and the rear end part of the inner pipe is sleeved with a drum spring structure; the inner tube, the cutter head and the drum spring structure are all made of conductive materials; the drum spring structure is provided with a lead connected with a power supply; the drum spring structure is connected with the first end of the three-way joint; the rear end of the inner pipe is hermetically connected with an inner port of the first end of the three-way joint; the front part of the inner tube is sleeved with an insulated outer tube; the middle part of the inner tube is sleeved with a roller; and the second end and the third end of the three-way joint are respectively connected with a negative pressure suction device and a flushing device.
Furthermore, the cutter head is in a metal wire shape, the rear end of the cutter head is welded in a groove formed in the front end of the inner tube, and the front end of the cutter head is suspended.
Furthermore, a binding post protruding outwards is arranged on the drum spring structure; the lead is welded on the binding post; a notch is arranged on the end edge of the first end of the three-way joint; the wiring terminal is clamped in the notch.
Further, the drum spring structure comprises a crown spring, the outer diameters of two end edges of the crown spring are matched with the first end of the three-way joint, and the minimum diameter of the concave part in the middle of the crown spring is smaller than the outer diameter of the inner pipe; the binding post is arranged on the front end edge of the crown spring; the crown spring is sleeved on the inner pipe and is arranged in the first end of the three-way joint.
Further, the drum spring structure comprises a lantern spring and a conducting ring; the inner diameter of the end opening of the lantern spring is smaller than the outer diameter of the inner pipe; the conducting ring is in a short tube shape and made of conducting materials, the outer diameter of the conducting ring is matched with the first end of the three-way joint, and the inner diameter of the conducting ring is smaller than the maximum diameter of the expanded part in the middle of the lantern spring; the lantern spring is sleeved on the inner pipe and is arranged in the conductive ring; the wiring terminal is arranged on the front end edge of the conducting ring; the conducting ring is arranged in the first end of the three-way joint.
Furthermore, the rear end of the inner pipe is provided with a chamfer and is connected with the inner port of the first end of the three-way joint in a sealing way through an O-shaped sealing ring.
Furthermore, the inner diameter of the outer pipe is equivalent to the outer diameter of the inner pipe, and the outer pipe can be tightly sleeved on the inner pipe; the front end of the outer pipe is flush with the front end of the inner pipe, and the rear end of the outer pipe is provided with a convex flying edge.
The invention has the beneficial effects that:
1. the cutting function of the electrocoagulation knife is combined with the suction and flushing functions, so that great convenience is created for the operation of a surgeon, and the operation efficiency is improved.
2. Electric connection is realized through a crown spring or a lantern spring in the drum spring structure, so that the stability of the electric connection is greatly improved, the phenomenon of poor contact when the electric coagulation knife rotates is avoided, and the operation quality is improved.
3. By chamfering the end part of the inner pipe and adopting the O-shaped sealing ring, the connection tightness is effectively improved, and the smooth operation is ensured.
Drawings
Fig. 1 is an exploded view of a first embodiment of the present invention.
FIG. 2 is a longitudinal sectional view of the first embodiment of the present invention.
Fig. 3 is a schematic view of a crown spring and a wire.
Fig. 4 is a partial schematic view of a second embodiment of the present invention.
Wherein, 1-a cutter head; 2-an outer tube; 3-fly edge; 4-a roller; 5-a wire; 6-inner tube; 7-crown spring; 8-sealing ring; 9-a three-way joint; 10-a notch; 11-a terminal; 12-lantern spring; 13-conductive ring.
Detailed Description
The invention is further described below with reference to the figures and examples.
Embodiment one, as shown in fig. 1 to 3.
An electrocoagulation knife structure comprises an outer tube 2, an inner tube 6, a three-way joint 9 and the like.
The inner pipe 6 is a straight pipe with two open ends and is made of stainless steel. The front end of the inner tube is provided with a cutter head 3, and the rear end part of the inner tube is sleeved with a crown spring 7 and then is arranged in the first end of the three-way joint 9. The outer diameter of the two end edges of the crown spring 7 is adapted to the first end of the three-way joint 9, so that the opening of the crown spring can be properly compressed and then placed into the first end of the three-way joint, and then the opening of the crown spring is released, so that the crown spring 7 can be tightly clamped in the first end of the three-way joint.
The minimum diameter of the concave part in the middle of the crown spring 7 is smaller than the outer diameter of the inner tube 6, so that when the crown spring is sleeved on the inner tube, the crown spring can be tightly wrapped on the inner tube through the elastic force of the crown spring. Meanwhile, the two can rotate mutually.
A binding post 11 is arranged on the front end edge of the crown spring 7, a lead 5 is connected to the binding post 11, and the lead is connected with an external power supply. Preferably, the post 11 is a block-shaped protrusion. Meanwhile, a notch 10 is formed in the end edge of the first end of the three-way joint 9, and the notch 10 is matched with the wiring terminal 11, so that the wiring terminal 11 is clamped in the notch 10, the crown spring 7 is fixed, and rotation of the crown spring is prevented.
The rear end of the inner pipe 6 is provided with a chamfer and is connected with the inner port of the first end of the three-way joint 9 in a sealing way through an O-shaped sealing ring 8, so that the sealing performance of the joint can be still kept when the inner pipe 6 rotates.
The front end of the inner tube 6 is provided with a cutter head 1. The cutter head 1 is in a metal wire shape, the rear end of the cutter head is welded in a groove formed in the front end part of the inner tube 6, and the outer surface of the inner tube is prevented from being protruded. The front end of the cutter head 1 is suspended and can be made into a bent shape, thereby being convenient to use.
The outer pipe 2 is a straight pipe, the length of the straight pipe is smaller than that of the inner pipe 6, the inner diameter of the straight pipe is equivalent to the outer diameter of the inner pipe 6, and the straight pipe can be tightly sleeved on the front portion of the inner pipe 6. The outer tube 2 is made of an insulating material such as plastic, which can insulate the front portion of the inner tube 6. Preferably, the front end of the outer tube 2 is flush with the front end of the inner tube 6, and the rear end of the outer tube is provided with a convex flying edge 3, so that the flying edge 3 can limit the position while insulating.
The middle part of the inner tube 6 is sleeved with the roller 4, and the inner tube 6 can be driven to rotate by rotating the roller 4, so that the precise operation is implemented.
The second end and the third end of the three-way joint 9 are respectively connected with a negative pressure suction device and a flushing device, so that the focus part is sucked, drained or flushed through the inner tube 6, various instruments are avoided, and the operation of a doctor is facilitated.
Example two, as shown in fig. 4.
The second embodiment has a structure substantially the same as that of the first embodiment, and the main difference is that the second embodiment does not use a crown spring, but uses a lantern spring 12 and a conductive ring 13. The inner diameter of the end opening at the two ends of the lantern spring 12 is smaller than the outer diameter of the inner tube 6, and the opening of the lantern spring can be properly opened to be tightly wrapped on the inner tube 6, so that good connection is ensured. The conductive ring 13 is in the shape of a short tube and made of a conductive material, and the outer diameter of the conductive ring is adapted to the first end of the three-way joint 9, so that the conductive ring can be stably placed in the first end of the three-way joint 9. Meanwhile, the inner diameter of the conducting ring 13 is smaller than the maximum diameter of the expanded part in the middle of the lantern spring 12, so that when the lantern spring 12 is sleeved on the inner tube 6 and then placed in the conducting ring 13, the lantern spring 12 can be deformed under pressure to generate a reaction force, and the reaction force is tightly connected with the conducting ring 13.
Furthermore, a wiring terminal 11 is arranged on the front end edge of the conducting ring 13, and the wiring terminal 11 is clamped in the notch of the first end of the three-way connector 9, so that the conducting ring is prevented from rotating.
The crown spring and the lantern spring both belong to drum spring structures, and can be made of metal materials, so that good electric conduction is ensured.
The invention can implement operations such as electrocoagulation cutting, negative pressure suction, flushing and the like:
1) During the electricity congeals the cutting, switches on the power through the wire, behind terminal, drum spring structure and inner tube in proper order, gives the tool bit power supply, aims at the operation position with the tool bit again, through the most advanced high-frequency high-voltage current that produces at the tool bit, heats the tissue of operation position, makes muscle tissue's separation and solidification, realizes cutting and hemostasis fast. Meanwhile, the roller can be rotated to adjust the direction of the cutter head, so that accurate cutting is realized. When rotating, can effectively avoid the poor emergence of electrically conductive under the effect of drum spring structure, ensure that the operation normally goes on.
2) When the negative pressure suction is carried out, the negative pressure suction device is connected to ensure that the flushing device is disconnected, and the focus part is sucked and drained through the inner tube.
3) When in washing, the washing device is switched on, and the negative pressure suction device is ensured to be switched off, so that the washing liquid flows out after passing through the inner tube to wash the focus part.
The parts not involved in the present invention are the same as or can be implemented using the prior art.

Claims (7)

1. An electrocoagulation knife structure comprises an inner tube and a three-way joint; the device is characterized in that the inner pipe is a straight pipe with two open ends, the front end of the inner pipe is provided with a tool bit, and the rear end of the inner pipe is sleeved with a drum spring structure; the inner tube, the cutter head and the drum spring structure are all made of conductive materials; the drum spring structure is provided with a lead connected with a power supply; the drum spring structure is connected with the first end of the three-way joint; the rear end of the inner pipe is hermetically connected with an inner port of the first end of the three-way joint; the front part of the inner tube is sleeved with an insulated outer tube; the middle part of the inner pipe is sleeved with a roller; and the second end and the third end of the three-way joint are respectively connected with a negative pressure suction device and a flushing device.
2. An electrocoagulation blade structure according to claim 1, wherein the blade head is of wire form, welded at its rear end in a recess provided in the front end of the inner tube, and suspended at its front end.
3. An electrocoagulation knife structure according to claim 1, wherein the drum spring structure is provided with an outwardly projecting binding post; the lead is welded on the binding post; a notch is arranged on the end edge of the first end of the three-way joint; the wiring terminal is clamped in the notch.
4. An electrocoagulation knife structure according to claim 1, wherein the drum spring structure comprises a crown spring, the outer diameter of the two end edges of which are adapted to the first end of the three-way joint, and the minimum diameter of the concave part in the middle part of the crown spring is smaller than the outer diameter of the inner tube; the binding post is arranged on the front end edge of the crown spring; the crown spring is sleeved on the inner pipe and is arranged in the first end of the three-way joint.
5. An electrocoagulation blade structure according to claim 1, wherein the drum spring structure comprises a lantern spring and an electrically conductive ring; the inner diameter of the end opening of the lantern spring is smaller than the outer diameter of the inner pipe; the conducting ring is in a short tube shape and made of conducting materials, the outer diameter of the conducting ring is matched with the first end of the three-way joint, and the inner diameter of the conducting ring is smaller than the maximum diameter of the expanded part in the middle of the lantern spring; the lantern spring is sleeved on the inner pipe and is arranged in the conductive ring; the wiring terminal is arranged on the front end edge of the conducting ring; the conducting ring is arranged in the first end of the three-way joint.
6. An electrocoagulation blade structure according to claim 1, wherein the rear end of the inner tube is chamfered and sealingly connected to the inner port of the first end of the tee fitting by an O-ring seal.
7. An electrocoagulation blade structure according to claim 1, wherein the outer tube has an internal diameter corresponding to the external diameter of the inner tube, and is adapted to fit tightly over the inner tube; the front end of the outer pipe is flush with the front end of the inner pipe, and the rear end of the outer pipe is provided with a convex flying edge.
CN202211120040.0A 2022-09-15 2022-09-15 Electric coagulation knife structure Pending CN115429421A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211120040.0A CN115429421A (en) 2022-09-15 2022-09-15 Electric coagulation knife structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211120040.0A CN115429421A (en) 2022-09-15 2022-09-15 Electric coagulation knife structure

Publications (1)

Publication Number Publication Date
CN115429421A true CN115429421A (en) 2022-12-06

Family

ID=84246892

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211120040.0A Pending CN115429421A (en) 2022-09-15 2022-09-15 Electric coagulation knife structure

Country Status (1)

Country Link
CN (1) CN115429421A (en)

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