CN116158840A - Rotary electrode and surgical tool using same - Google Patents

Rotary electrode and surgical tool using same Download PDF

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Publication number
CN116158840A
CN116158840A CN202310440289.8A CN202310440289A CN116158840A CN 116158840 A CN116158840 A CN 116158840A CN 202310440289 A CN202310440289 A CN 202310440289A CN 116158840 A CN116158840 A CN 116158840A
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China
Prior art keywords
electrode
layer
rotary
rotary electrode
inner layer
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Pending
Application number
CN202310440289.8A
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Chinese (zh)
Inventor
张兆家
王振国
乔磊
张梅
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Beijing Wanjie Medical Device Co ltd
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Beijing Wanjie Medical Device Co ltd
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Priority to CN202310440289.8A priority Critical patent/CN116158840A/en
Publication of CN116158840A publication Critical patent/CN116158840A/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
    • 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
    • A61B18/14—Probes or electrodes therefor
    • 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
    • A61B18/1206—Generators therefor
    • 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
    • A61B2018/00273—Anchoring means for temporary attachment of a device to tissue
    • 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
    • A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
    • A61B2018/00339—Spine, e.g. intervertebral disc
    • 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
    • A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
    • A61B2018/00434—Neural system
    • 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
    • A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
    • A61B2018/00434—Neural system
    • A61B2018/0044—Spinal cord
    • 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
    • A61B2018/00577—Ablation
    • 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
    • A61B2018/00636—Sensing and controlling the application of energy
    • A61B2018/00773—Sensed parameters
    • A61B2018/00791—Temperature
    • 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
    • A61B18/1206—Generators therefor
    • A61B2018/1246—Generators therefor characterised by the output polarity
    • A61B2018/1253—Generators therefor characterised by the output polarity monopolar
    • 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
    • A61B18/14—Probes or electrodes therefor
    • A61B2018/1405—Electrodes having a specific shape
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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

Abstract

The invention relates to the technical field of medical instruments, and provides a rotary electrode and a surgical tool using the same. Comprising the following steps: one end of the rotary electrode is closed, and the other end of the rotary electrode is opened; the rotary electrode is provided with an electrode outer layer and an electrode inner layer, the electrode outer layer is wrapped outside the electrode inner layer, the electrode inner layer axially extends out of the electrode outer layer, and a cutting tool bit is arranged at the end part of the electrode inner layer extending out of the electrode outer layer; the electrode inner layer is axially provided with an inner hole, and the inner hole extends towards the cutting tool bit to form an open end of the rotary electrode. The beneficial effects are that: through set up the hole at the electrode inlayer along the axial, and the hole extends to cutting tool bit direction and form the open end of rotating electrode, behind the kirschner wire location, the hole embolias the kirschner wire, the kirschner wire cooperates with the hollow rotating electrode that possesses the hole, and rotating electrode can realize self-centering, ensures rotating electrode's stable rotation.

Description

Rotary electrode and surgical tool using same
Technical Field
The invention relates to the technical field of medical instruments, in particular to a rotary electrode and a surgical tool using the same.
Background
The facet joints are located between vertebrae of the spine and allow the back to remain flexible during bending and rotation. They also allow nerves to leave the spinal cord and pass to other parts of the body. Cartilage in the facet joints allows the vertebrae to move smoothly relative to one another without grinding. In addition, synovial fluid lubricates the facet joint, helping to prevent wear. When these joints become swollen and painful, facet joint syndrome, also known as osteoarthritis, occurs.
Facet joint syndrome may be caused by a number of problems including aging, facet joint stress overload and/or injury. As the discs degenerate, they wear and begin to collapse, resulting in pressure overload. This reduces the space between each vertebra, which affects the way the facet joints align and places significant pressure on the cartilage of the facet joints. The pressure wears the necessary cartilage. As the facet joint arthritis progresses, the lubricated cartilage and fluid eventually breaks down, rubbing the bones against each other. This can result in bony spurs around the facet joints, which can occupy space in the holes between the vertebrae where the nerve roots leave the spine, causing stress on the nerve roots.
Most of electrodes used by the existing operation tools for the facet joint syndrome are of solid structures, hand-held operation is needed, the operation tool does not have a self-centering function, the rotation of the electrodes is unstable, and the current leading-in structure of the electrodes is complex.
In view of this, the present invention has been proposed.
Disclosure of Invention
The invention aims to provide a rotary electrode and a surgical tool using the same, which are used for solving the technical problems in the prior art.
In order to achieve the above purpose, the invention adopts the following technical scheme: a rotary electrode comprising: one end of the rotary electrode is closed, and the other end of the rotary electrode is opened; the rotary electrode is provided with an electrode outer layer and an electrode inner layer, the electrode outer layer is wrapped outside the electrode inner layer, the electrode inner layer axially extends out of the electrode outer layer, and a cutting tool bit is arranged at the end part of the electrode inner layer extending out of the electrode outer layer; the electrode inner layer is axially provided with an inner hole, and the inner hole extends towards the cutting tool bit to form an open end of the rotary electrode.
In an alternative embodiment, the electrode inner layer is a metal conductive heating layer, and an exposed area is reserved at a position of the electrode inner layer close to the closed end of the rotary electrode.
In an alternative embodiment, a temperature sensor is further arranged at the end part of the electrode inner layer extending out of the electrode outer layer, and the temperature sensor is arranged at intervals with the cutting tool bit.
In an alternative embodiment, the outer electrode layer is an insulating layer, a plurality of guide protrusions are uniformly arranged on the outer electrode layer along the axial direction, and an air flow channel axially arranged along the rotating electrode is formed between the adjacent guide protrusions.
In another aspect, embodiments of the present invention provide a surgical tool using a rotary electrode as described above, comprising: the tool comprises a tool shell, wherein a driving motor is arranged in a handle of the tool shell, and an output shaft of the driving motor is detachably connected with the rotating electrode.
In an alternative embodiment, a conductive post is further disposed in the tool housing, an inner arc-shaped top of the conductive post is in contact with a reserved exposed area of the rotating electrode, and when the electrode inner layer of the rotating electrode rotates at a high speed, the conductive post is always in contact with the electrode inner layer for conduction.
In an alternative embodiment, the electric rotating electrode further comprises a Kirschner wire matched with the rotating electrode, the Kirschner wire is composed of an inner metal layer and an outer insulating layer, the inner metal layer is wrapped by the outer insulating layer, the head of the Kirschner wire is an inner metal layer, the tail of the Kirschner wire is covered by the outer insulating layer, and the Kirschner wire can be inserted into the inner hole to guide.
In an alternative embodiment, the rotary electrode further comprises a sleeve matched with the rotary electrode, and a round hole is formed in the sleeve and used for being connected with a negative pressure device.
In an alternative embodiment, a battery is also provided inside the tool housing.
In an alternative embodiment, the handle is connected with a power cord and a plug.
The invention has the beneficial effects that:
(1) The surgical tool is rotary, monopolar and radio frequency denervation equipment, and is suitable for ablating nerves and envelope tissues on the rear surface of a facet joint. Denervation is accomplished by delivering controlled radio frequency energy and removing tissue debris from the treatment site by the rotational operation of the probe. The inner hole is arranged in the inner layer of the electrode along the axial direction, the inner hole extends to the direction of the cutting tool bit to form the open end of the rotary electrode, the Kirschner wire is sleeved into the inner hole after being positioned, and the Kirschner wire is matched with the hollow electrode with the inner hole, so that self-centering can be realized, and stable rotation of the electrode is ensured.
(2) The position of the Kirschner wire inserted into the operation removing part of the operation tool is a metal layer, so that the sharpness and toughness of the Kirschner wire are ensured, the contact part of the Kirschner wire and the inner hole of the rotary electrode is an outer insulating layer, and the generation of a loop of the rotary electrode during operation is avoided. It is also pointed out that the inner arc top of conductive column contacts with the reserved exposed area of the rotary electrode, and when the rotary electrode rotates at high speed, the conductive column always contacts with the electrode inner layer to conduct electricity, the structure is simple, and the end part of the rotary electrode is also provided with a temperature sensor, so that the damage to the patient caused by the overhigh temperature of the rotary electrode is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a top view of a surgical tool provided in an embodiment of the present invention.
Fig. 2 is a partially enlarged schematic structural view of fig. 1 at B.
Fig. 3 is a cross-sectional view taken along A-A in fig. 1.
Fig. 4 is a schematic structural view of a k-wire according to an embodiment of the present invention.
Fig. 5 is a sectional view taken along the direction B-B in fig. 4.
Wherein, the reference numerals are as follows:
1-surgical tool, 11-handle, 12-power cord, 13-plug, 14-driving motor; 2-rotating electrodes, 21-electrode outer layers, 22-electrode inner layers, 23-inner holes, 24-air flow channels, 25-cutting heads and 26-guide protrusions; 3-Kirschner wire, 31-inner metal layer, 32-outer insulation layer.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The directions or positions indicated by the terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are directions or positions based on the drawings, and are merely for convenience of description and are not to be construed as limiting the present technical solution. The terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "a plurality of" is two or more, unless specifically defined otherwise.
Example 1
Referring to fig. 1-5, an object of the present embodiment is to provide a rotary electrode 2, which includes: one end of the rotary electrode 2 is closed, and the other end of the rotary electrode 2 is opened; the rotary electrode 2 is provided with an electrode outer layer 21 and an electrode inner layer 22, the electrode outer layer 21 is wrapped outside the electrode inner layer 22, the electrode inner layer 22 axially extends out of the electrode outer layer 21, and a cutting tool bit 25 is arranged at the end of the electrode inner layer 22 extending out of the electrode outer layer 21; the electrode inner layer 22 is provided with an inner hole 23 in the axial direction, and the inner hole 23 extends in the direction of the cutter head 25 to form an open end of the rotary electrode 2. After the Kirschner wire 3 is positioned, the inner hole 23 is sleeved into the Kirschner wire 3, the Kirschner wire 3 is matched with a hollow rotating electrode with the inner hole 23, the rotating electrode 2 can realize self-centering, and stable rotation of the rotating electrode 2 is ensured.
Specifically, the electrode inner layer 22 is a metal conductive heating layer, and an exposed area is reserved at a position of the electrode inner layer 22 close to the closed end of the rotating electrode 2. The end part of the electrode inner layer 22 extending out of the electrode outer layer 21 is also provided with a temperature sensor which is arranged at intervals with the cutting bit 25, and the temperature sensor can avoid the damage to a patient caused by overhigh temperature of the rotating electrode 2.
In addition, the electrode outer layer 21 is an insulating layer, a plurality of guide protrusions 26 are uniformly provided on the outside of the electrode outer layer 21 in the axial direction, and an air flow passage 24 provided in the axial direction of the rotary electrode 2 is formed between the adjacent guide protrusions 26.
Example two
Referring to fig. 1-5, an object of the present embodiment is to provide a surgical tool 1, using a rotary electrode 2 according to the above embodiment, comprising: the tool comprises a tool shell, wherein a driving motor 14 is arranged in a handle 11 of the tool shell, and an output shaft of the driving motor 14 is detachably connected with a rotary electrode 2. The tool casing is also provided with a conductive column inside, the inner arc top of the conductive column is in contact with the reserved exposed area of the rotary electrode 2, and when the electrode inner layer 22 of the rotary electrode 2 rotates at a high speed, the conductive column is always in contact with the electrode inner layer 22 for conduction.
In this embodiment, the electric rotating electrode further comprises a k-wire 3 matched with the rotating electrode 2, the k-wire 3 is composed of an inner metal layer 31 and an outer insulation layer 32, the inner metal layer 31 is wrapped by the outer insulation layer 32, the head of the k-wire 3 is the inner metal layer 31, the tail of the k-wire 3 is covered by the outer insulation layer 32, and the k-wire 3 can be inserted into the inner hole 23 to guide. As one of the main contributions of the present embodiment, the rotary electrode 2 can realize self-centering, ensuring stable rotation of the rotary electrode 2. It should be noted that, as another main contribution of the present embodiment, the position of the k-wire 3 inserted into the operation removing portion is the inner metal layer 31, so as to ensure sharpness and toughness of the k-wire 3, and the contact portion of the k-wire 3 and the inner hole 23 of the rotating electrode 2 is the outer insulation layer 32, so as to avoid the generation of the loop of the rotating electrode 2 during operation.
Further, the rotary electrode device also comprises a sleeve matched with the rotary electrode 2, and a round hole is formed in the sleeve and used for being connected with a negative pressure device. The rotary electrode 2 is inserted into the sleeve to form a negative pressure space. The negative pressure device operates to aspirate surgical removal material cut by the cutting head 25 along the airflow path 24 into the negative pressure device.
Finally, a battery is also provided within the tool housing. The handle 11 is connected with a power cord 12 and a plug 13. The surgical tool 1 may be powered by a battery or directly by a power source.
Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims (10)

1. A rotary electrode, comprising: one end of the rotary electrode (2) is closed, and the other end of the rotary electrode (2) is opened; the rotary electrode (2) is provided with an electrode outer layer (21) and an electrode inner layer (22), the electrode outer layer (21) is wrapped outside the electrode inner layer (22), the electrode inner layer (22) axially extends out of the electrode outer layer (21), and a cutting tool bit (25) is arranged at the end part of the electrode inner layer (22) extending out of the electrode outer layer (21); the electrode inner layer (22) is provided with an inner hole (23) along the axial direction, and the inner hole (23) extends towards the cutting tool bit (25) to form an open end of the rotary electrode (2).
2. The rotary electrode according to claim 1, wherein the electrode inner layer (22) is a metal conductive heat generating layer, and a bare area is reserved at a position of the electrode inner layer (22) close to the closed end of the rotary electrode (2).
3. A rotary electrode according to claim 1, characterized in that the end of the inner electrode layer (22) extending beyond the outer electrode layer (21) is further provided with a temperature sensor, spaced apart from the cutting head (25).
4. The rotary electrode according to claim 1, wherein the electrode outer layer (21) is an insulating layer, a plurality of guide protrusions (26) are uniformly arranged on the outer portion of the electrode outer layer (21) along the axial direction, and air flow channels (24) arranged along the axial direction of the rotary electrode (2) are formed between the adjacent guide protrusions (26).
5. Surgical tool using a rotary electrode (2) according to any one of claims 1 to 4, characterized in that it comprises: the tool comprises a tool shell, wherein a driving motor (14) is arranged in a handle (11) of the tool shell, and an output shaft of the driving motor (14) is detachably connected with the rotary electrode (2).
6. Surgical tool according to claim 5, characterized in that the tool housing is further provided internally with a conductive post, the inner arc-shaped top of which is in contact with the reserved bare area of the rotary electrode (2), which is always in contact with the electrode inner layer (22) when the electrode inner layer (22) of the rotary electrode (2) is rotated at high speed.
7. Surgical tool according to claim 5, characterized in that it further comprises a k-wire (3) for cooperation with the rotary electrode (2), the k-wire (3) being composed of an inner metal layer (31) and an outer insulation layer (32), the outer insulation layer (32) surrounding the inner metal layer (31), the head of the k-wire (3) being the inner metal layer (31), the tail of the k-wire (3) being covered by the outer insulation layer (32), the k-wire (3) being insertable into the inner hole (23) for guiding.
8. Surgical tool according to claim 5, characterized in that it further comprises a sleeve cooperating with the rotary electrode (2), said sleeve being provided with a circular hole for connection of a negative pressure device.
9. The surgical tool of claim 5, wherein a battery is further disposed within the tool housing.
10. Surgical tool according to claim 5, characterized in that the handle (11) is connected with a power cord (12) and a plug (13).
CN202310440289.8A 2023-04-23 2023-04-23 Rotary electrode and surgical tool using same Pending CN116158840A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310440289.8A CN116158840A (en) 2023-04-23 2023-04-23 Rotary electrode and surgical tool using same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310440289.8A CN116158840A (en) 2023-04-23 2023-04-23 Rotary electrode and surgical tool using same

Publications (1)

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CN116158840A true CN116158840A (en) 2023-05-26

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204246236U (en) * 2014-09-13 2015-04-08 广州市番禺区何贤纪念医院 A kind of spinning LEEP cutter
CN105411666A (en) * 2014-07-30 2016-03-23 梅多维克斯公司 Surgical Tools For Spinal Facet Therapy To Alleviate Pain And Related Methods
US20160235469A1 (en) * 2015-02-18 2016-08-18 Medtronic Xomed, Inc. Rf energy enabled tissue debridement device
CN111839718A (en) * 2020-08-26 2020-10-30 上海诺英医疗器械有限公司 Surgical electrode knife
CN211985646U (en) * 2019-12-13 2020-11-24 成都美创医疗科技股份有限公司 Plasma surgical tool

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105411666A (en) * 2014-07-30 2016-03-23 梅多维克斯公司 Surgical Tools For Spinal Facet Therapy To Alleviate Pain And Related Methods
CN204246236U (en) * 2014-09-13 2015-04-08 广州市番禺区何贤纪念医院 A kind of spinning LEEP cutter
US20160235469A1 (en) * 2015-02-18 2016-08-18 Medtronic Xomed, Inc. Rf energy enabled tissue debridement device
CN211985646U (en) * 2019-12-13 2020-11-24 成都美创医疗科技股份有限公司 Plasma surgical tool
CN111839718A (en) * 2020-08-26 2020-10-30 上海诺英医疗器械有限公司 Surgical electrode knife

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