CN117257433A - Plasma operation electrode working end, operation electrode and operation equipment - Google Patents
Plasma operation electrode working end, operation electrode and operation equipment Download PDFInfo
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- CN117257433A CN117257433A CN202311567035.9A CN202311567035A CN117257433A CN 117257433 A CN117257433 A CN 117257433A CN 202311567035 A CN202311567035 A CN 202311567035A CN 117257433 A CN117257433 A CN 117257433A
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- 239000012212 insulator Substances 0.000 claims abstract description 77
- 238000005520 cutting process Methods 0.000 claims abstract description 20
- 238000002679 ablation Methods 0.000 claims abstract description 18
- 238000005491 wire drawing Methods 0.000 claims description 78
- 239000002699 waste material Substances 0.000 claims description 29
- 239000003292 glue Substances 0.000 claims description 18
- 230000015271 coagulation Effects 0.000 claims description 12
- 238000005345 coagulation Methods 0.000 claims description 12
- 239000000853 adhesive Substances 0.000 claims description 9
- 230000001070 adhesive effect Effects 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 7
- 230000002035 prolonged effect Effects 0.000 claims description 3
- 230000000977 initiatory effect Effects 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 7
- 210000002381 plasma Anatomy 0.000 description 147
- 239000007788 liquid Substances 0.000 description 17
- 238000009434 installation Methods 0.000 description 11
- 150000002500 ions Chemical class 0.000 description 9
- 238000004448 titration Methods 0.000 description 9
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- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 3
- 230000002572 peristaltic effect Effects 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- 206010028851 Necrosis Diseases 0.000 description 2
- 229910000691 Re alloy Inorganic materials 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
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- 238000010586 diagram Methods 0.000 description 2
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- DECCZIUVGMLHKQ-UHFFFAOYSA-N rhenium tungsten Chemical compound [W].[Re] DECCZIUVGMLHKQ-UHFFFAOYSA-N 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical group [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 206010061218 Inflammation Diseases 0.000 description 1
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Classifications
-
- 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
- A61B18/042—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating using additional gas becoming plasma
-
- 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
- A61B2018/00583—Coblation, i.e. ablation using a cold plasma
-
- 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
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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 field of plasma electrode medical treatment, and provides a plasma operation electrode working end, which comprises: a middle insulator having a columnar shape and disposed between the positive and negative electrodes constituting the circuit; an emitter provided at one end of the middle insulator, the emitter being ring-shaped and arranged at a positive electrode constituting a circuit; and a return electrode provided at an axial center position within the middle insulator and arranged at a negative electrode constituting a circuit; the structure layout of the ring-shaped emitter positioned at the periphery and the return electrode positioned at the center of the ring ensures that the generated plasma density is larger, and can provide stronger cutting and ablation capability, and the structure layout of the ring-shaped emitter positioned at the periphery and the return electrode positioned at the center of the ring-shaped emitter is beneficial to precise and fine operation.
Description
Technical Field
The invention relates to the field of plasma electrode medical treatment, in particular to a plasma operation electrode working end, an operation electrode and operation equipment.
Background
The human body is a complex structure composed of many organic and inorganic substances, and the body fluid contains a large amount of dielectrics such as ions, water, colloidal particles, etc. The current transmission in the human body mainly depends on ion movement, and under high-frequency oscillation, the ions between the two electrodes rapidly move along the electric field line direction, and the moving state gradually changes into a vibration state. Because the size, mass and charge of each ion are different, the moving speed is also different, and the ions rub against each other and collide with other particles to generate biological heat effect.
Low temperature plasma technology has been a relatively mature application science that has been widely used in various fields and was used in electrosurgery in the beginning of the 21 st century. The medical plasma is a low-temperature plasma which is formed by exciting electrolyte such as NaCl and the like by high-frequency energy with a fixed frequency of 100 kHz. In the excitation process of the plasma, a large number of particles acquire longer acceleration time in a low-frequency state, and the particles which continuously accelerate movement finally form high-speed charged particles with enough kinetic energy, so that molecular bonds are directly broken, and the cutting or ablation of tissues is realized.
The coagulation mode of the plasma operation equipment operates in a low-power gear, when the output voltage is below 150V, ions oscillating in the tissue generate friction heat, so that the surface temperature of the tissue can exceed 60 ℃ (lower than 70 ℃), and the coagulation necrosis of the tissue is caused, thereby achieving the purpose of coagulation. With the increase of output voltage and power, the plasma operation equipment enters a plasma mode, namely a cutting ablation mode, charged ions moving at high speed directly break molecular bonds, and at the moment, the temperature of the surface of the tissue is reduced to 50-55 ℃, so that irreversible tissue damage of the tissue at a non-operation part is avoided.
The medical plasma has low frequency, compared with high frequency, greatly reduces the friction heat among molecules, completes the processes of cutting, ablating, coagulating and the like within 40-70 ℃, has shallow action depth (about only 50-100 mu m), and has light postoperative inflammatory reaction; the disadvantage is insufficient hemostatic depth, and problems of intraoperative and postoperative follow-up are also directly related to the skill of the operator.
Plasma surgical systems are generally composed of 4 main components: the device comprises a main machine, a foot switch, an operation electrode and a power line, wherein part of the device also comprises a medium solution titration pipeline system and a waste liquid suction system, the medium solution is generally normal saline, the main machine is a source of high-frequency energy, the high-frequency energy is transmitted to a treatment part through the plasma operation electrode, a doctor selects a working mode of the device according to actual needs, and when the output voltage is higher than about 150V, the plasma operation device is in a cutting or ablation mode, so that the cutting and ablation operation process can be realized; when the output voltage is lower than about 150V, the plasma operation equipment is in a coagulation mode, and the coagulation necrosis of the tissue is caused by using friction heat generated by the ion oscillation movement, so that the coagulation effect is achieved.
When in use, the plasma operation electrode needs to be connected with a host machine into a loop, and the medium solution in the medium solution bag is delivered to the working end of the plasma operation electrode through a peristaltic pump by a medium solution input pipeline. The doctor holds the plasma operation electrode handle in the operation, places the working end of the plasma operation electrode at the tissue position to be treated, cuts and ablates the treatment position through the high-speed ion flow excited by the emitter, or performs coagulation treatment by using the plasma operation electrode.
In the prior art, plasma surgical electrodes are generally divided into two main categories: needle electrodes and thicker diameter cylindrical electrodes have several disadvantages:
the needle electrode with a fine structure does not have a titration function, and enough medium solution is not enough to excite enough plasmas, so that high-power cutting or ablation capability cannot be formed.
The plasma operation electrode with titration function has the structural characteristics that the electrode mainly plays a role in transverse cutting or ablation or coagulation, and has lower use efficiency in the operation process of longitudinal ablation.
The plasma operation electrode with titration function has the structural characteristics that the envelope surface part of the plasma excited by the plasma operation electrode is beyond the end surface size of the operation electrode, the outer diameter of the operation electrode is exceeded, the plasma boundary is not easy to determine, and the operation treatment of the part close to the blood vessel or the nerve tissue is not facilitated.
The suction hole of the plasma operation electrode with the titration function is relatively far away from the position where the waste is generated, either in the middle of the emitter or behind the emitter.
The titration hole of the plasma operation electrode with the titration function is far away from the emitter, which is not beneficial to precisely controlling the transportation of the medium solution.
The working end of the plasma operation electrode with the titration function lacks a monitoring sensor, and the specific working state can only be observed through an auxiliary endoscope, so that more accurate operation is not facilitated.
Disclosure of Invention
The invention mainly provides a plasma operation electrode working end, an operation electrode and operation equipment, which are used for solving the technical problems that the existing needle electrode in the background art cannot generate enough plasma to generate high-power cutting or ablation capacity and the like.
The technical scheme adopted for solving the technical problems is as follows:
the first aspect of the present invention provides a working end of a plasma surgical electrode, the working end comprising: a middle insulator having a columnar shape and disposed between the positive and negative electrodes constituting the circuit; an emitter provided at one end of the middle insulator, the emitter being ring-shaped and arranged at a positive electrode constituting a circuit; and a return electrode provided at an axial center position within the middle insulator and arranged at a negative electrode constituting a circuit; wherein the emitter and the return electrode are capable of initiating a plasma in a dielectric solution and forming an electrical circuit.
Preferably, the return electrode has a tubular shape, and a waste liquid suction hole is formed at an end of the return electrode, and is configured to draw out waste liquid; the return electrode penetrates through the axis of the middle insulator, and the tail end of the return electrode is always prolonged, penetrates through the plasma operation electrode axis and is connected with the plasma operation electrode handle.
Preferably, the emitter ring-shaped inner wall of the emitter is provided with at least one emitter radial tooth, which is configured to generate plasma.
Preferably, at least one emitter axial tooth is provided on an end face of the emitter, the emitter axial tooth being configured to generate plasma.
Preferably, the outer side surface of the emitter axial tooth coincides with the outer ring surface of the emitter; the distance from the inner wall of the emitter axial tooth to the center of the annular inner wall of the emitter is greater than the radius of the annular inner wall of the emitter.
Preferably, the working end further comprises a ball head wire drawing, the outer side of the middle insulator is inwards recessed to form a ball head wire drawing mounting groove matched with the ball head wire drawing, and the emitter is arranged on the middle insulator through the ball head wire drawing.
Preferably, the working end further includes an inner insulating layer provided on an outer side of the return electrode, and an outer surface of the return electrode tail end beyond the middle insulator portion is coated with the inner insulating layer to ensure insulation from the outside.
Preferably, the working end further comprises a supporting outer tube, the supporting outer tube is arranged on the outer side of the middle insulator, a glue adding hole is formed in the tube wall of the supporting outer tube, the radial angle of the glue adding hole is identical to that of the ball head wire drawing mounting groove, and the glue adding hole is configured to fix the ball head wire drawing, the middle insulator and the supporting outer tube together after the high-temperature resistant adhesive is added.
Preferably, the working end further comprises an outer insulating layer, and the outer insulating layer is arranged on the outer side of the supporting outer tube and exceeds the complete cylindrical surface part of the supporting outer tube.
Preferably, the outer side surface of the middle insulator is provided with a medium solution outlet groove extending along the axial direction, and the medium solution outlet groove and the inner wall of the supporting outer tube form a tubular structure and form a medium solution outflow channel.
Preferably, the dielectric solution outlet slot has an exposed portion length at the proximal end of the emitter, the exposed portion between the emitter and the support outer tube forming the outlet for the dielectric solution.
Preferably, at least one of the ball wire strands has a length exceeding a sum of a thickness of the emitter and a length of the middle insulator, the ball wire strands being configured to transmit high frequency energy.
Preferably, the distance of the return electrode beyond the emitter outer end face is not less than the minimum of the tooth heights of all the emitter axial teeth.
Preferably, the working end further comprises a sensor configured to detect one or more of a voltage or impedance between the emitter electrode and the return electrode, a temperature of the emitter electrode, an inner or outer tube wall temperature of the return electrode, an inner or surface temperature of the middle insulator, an inner or outer wall temperature of the supporting outer tube, and an inner temperature of a solution or generated plasma between the emitter electrode and the return electrode.
In a second aspect, the present invention provides a plasma surgical electrode comprising:
the working end of the plasma operation electrode,
a plasma surgical electrode shaft disposed to connect the plasma surgical electrode working end and a plasma surgical electrode handle;
the plasma operation electrode handle comprises a function control button and a control circuit board which are in contact, wherein a plurality of function control buttons are arranged on the plasma operation electrode handle and are configured to operate a switch on the control circuit board, and the control circuit board is arranged in the plasma operation electrode handle and is configured to switch the output of different function modes.
Preferably, the control button includes: a high power output button configured to start and stop a cutting or ablation mode of the control circuit board; a low power output button configured to start and stop a coagulation mode of the circuit control circuit board; and a power shift switching button configured to switch a power output shift of the control circuit board.
Preferably, a medium solution input pipeline is arranged in the plasma operation electrode handle, the medium solution input pipeline is communicated with the medium solution outlet groove through the plasma operation electrode handle and the plasma operation electrode shaft, and the medium solution input pipeline is configured for inputting medium solution.
Preferably, a waste liquid suction pipeline is arranged in the plasma operation electrode handle, the tail end of the return electrode is prolonged and is communicated with the waste liquid suction pipeline through the plasma operation electrode shaft, and the waste liquid suction pipeline is configured to output waste liquid.
Preferably, an integrated cable is disposed within the plasma surgical electrode handle, the integrated cable being configured to transmit energy and transmit signals.
Preferably, the bulb wire drawing has a plurality of, one bulb wire drawing tail end of bulb wire drawing passes through metal wire connection and plasma operation electrode axle, with control circuit board links to each other and finally gathers in the integration cable, bulb wire drawing is configured in the transmission comes from control circuit board's high frequency energy.
Preferably, the signal wire of the sensor passes through the hole between the middle insulator and the support outer tube and enters the space between the support outer tube and the inner insulating layer, and finally passes through the plasma operation electrode shaft to be integrated in the integrated cable; or the signal wire of the sensor passes through the gap between the outer insulating layer and the supporting outer tube and finally passes through the plasma operation electrode shaft to be assembled in the integrated cable.
A third aspect of the present invention provides a plasma surgical device, comprising: a plasma surgical electrode; and a host connected with the integrated cable within the plasma-surgical electrode handle by an integrated plasma-surgical electrode cable, the host configured to provide high frequency energy.
Preferably, the surgical device further comprises a media solution bag connected to the media solution input conduit by a media solution instillation conduit, the media solution bag configured to store and deliver a media solution.
Compared with the prior art, the invention has the beneficial effects that:
the structure layout of the ring-shaped emitter positioned at the periphery and the return electrode positioned at the center of the ring ensures that the generated plasma density is larger, and can provide stronger cutting and ablation capability.
The invention will be explained in detail below with reference to the drawings and specific embodiments.
Drawings
Fig. 1: the whole structure of the plasma operation electrode of some embodiments of the invention is schematically shown;
fig. 2: the whole structure schematic diagram of the working end of the plasma operation electrode of some embodiments of the invention;
fig. 3: an axial sectional view of the whole structure of the working end of the plasma operation electrode in some embodiments of the invention;
Fig. 4: a cross-sectional view of the whole structure of the working end of the plasma operation electrode in some embodiments of the invention at another axial view angle;
fig. 5: radial sectional views of the whole structure of the working end of the plasma operation electrode in some embodiments of the invention;
fig. 6: a cross-sectional view of the whole structure of the working end of the plasma operation electrode in some embodiments of the invention from another radial view;
fig. 7: the plasma operation equipment of some embodiments of the invention is a schematic diagram of the whole structure.
Reference numerals illustrate:
1, a host;
2, full touch color screen;
3 peristaltic pump;
4, a power switch;
5 an integrated plasma operation electrode interface;
6, a pedal switch interface;
7, a power line;
8, plasma operation electrode;
9 an integrated plasma operation electrode cable;
10 medium solution instillation tubing;
11 foot switch;
12 foot switch cables;
13, a left pedal is turned on and off by foot;
14, a right pedal is turned on and off by foot;
15 shift pedals;
16 medium solution bags;
17 medium solution;
100 plasma surgical electrode working end;
101 a plasma surgical electrode shaft;
102 an outer insulating layer;
103 emitter; 1031 emitter radial teeth; 1032 emitter axial teeth; 1033 ball head wiredrawing mounting holes; 1034 emitter annular inner wall; 1035 emitter radial tooth roots;
104 a return electrode; 1041 return electrode tip; 1042 return electrode tail;
105 an insulator; 1051 ball head wiredrawing installation groove;
106 waste liquid suction holes;
107 medium solution outlet tank;
108 supporting the outer tube;
109 ball head wire drawing; 1091 ball head wire drawing ball head; 1092 ball end of wire drawing;
110 glue adding holes;
111 plasma surgical electrode handle;
112 high power output button;
113 low power output button;
114 power shift button;
115 medium solution input pipe;
116 waste liquid suction line;
117 integrated cable;
118 an inner insulating layer;
119 high temperature resistant adhesive;
120 signal line insulating layers;
d1 diameter of the annular inner wall of the emitter;
d2 radius of the annular inner wall of the emitter;
d3, axial tooth height of the emitter;
d4, the distance from the inner wall of the emitter axial teeth to the center of the annular inner wall of the emitter;
d5 outer diameter of the return electrode;
d6 distance of the return electrode beyond the outer end face of the emitter;
d7 the distance that outer insulating layer exceeded the outer tube of support cylindrical surface.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention. Unless otherwise defined, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. As used herein, the word "comprising" and the like means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof without precluding other elements or items.
In view of the foregoing, a first aspect of the present invention provides a working end 100 of a plasma surgical electrode, referring to fig. 1 to 4, where the working end 100 of the plasma surgical electrode includes a middle insulator 105, an emitter 103 and a return electrode 104, the middle insulator 105 is cylindrical and is used for configuring a base of the emitter 103 and an insulating layer of the emitter 103 and the return electrode 104, the emitter 103 is disposed at one end of the middle insulator 105, the emitter 103 is annular and is configured to be an anode of a circuit, the return electrode 104 is disposed at an axial center position in the middle insulator 105 and is configured to be a cathode of the circuit, and plasma can be excited in a medium solution between the emitter 103 and the return electrode 104 and an electrical circuit can be formed in the medium solution 17.
The structural layout of the ring-shaped emitter 103 positioned at the periphery and the return electrode 104 positioned at the center of the ring ensures that the generated plasma density is larger, and can provide stronger cutting and ablation capability, and meanwhile, the structural layout of the ring-shaped emitter 103 positioned at the periphery and the return electrode 104 positioned at the center of the ring-shaped emitter ensures that the envelope surface of the generated plasma is completely within the peripheral circumferential dimension of the ring-shaped emitter 103, and the boundary is clear, thereby being beneficial to precise and fine operation.
The emitter 103 in the present invention may have an elliptical ring shape, a semicircular ring shape, a semi-elliptical ring shape, or a horseshoe shape, and may have a closed loop or an open loop.
The middle insulator 105 is cylindrical, and is made of ceramic, and is manufactured by a special sintering process, wherein one end of the cylindrical middle insulator 105, on which the emitter 103 is mounted, is a head end, the other end is a tail end, and the axis position of the cylindrical middle insulator 105 is a through thin central circular shaft hole.
In some embodiments of the present invention, referring to fig. 2, the return electrode 104 is tubular, the end of the return electrode 104 is a waste liquid suction hole 106, and the waste liquid suction hole 106 is formed by an inner tube of the return electrode 104, so that the overall structure is more compact, and is located at the center of the working end 100 of the plasma operation electrode, thereby facilitating the suction of waste liquid.
The return electrode 104 penetrates through the center of the insulator 105, and the tail end of the return electrode 104 extends through the plasma operation electrode shaft 101 and is connected to the plasma operation electrode handle 111.
To further increase the density of the plasma generated by the electrode, in some embodiments of the present invention, referring to fig. 2 and 5, at least one emitter radial tooth 1031 is provided on the emitter annular inner wall 1034 of the emitter 103, and the emitter radial tooth 1031 can generate a plasma with a higher density in view of the higher discharge capacity of the tip.
The number of the emitter radial teeth 1031 in the present invention may be 1 or 2 or more, and the shape of the emitter radial teeth 1031 may be triangular, or may be a circular segment, elliptical segment, trapezoid, bell-shaped, involute tooth or the like. When there are at least 2 emitter radial teeth 1031, the shape of each tooth may be the same or different; when there are at least 3 emitter radial teeth 1031, the shape of each tooth may also be only partially identical; when there are at least 2 radial teeth 1031 of the emitter, the distance from the tip of each tooth to the center of the ring may be equal, or may be unequal, or may be only partially equal; the distance from the bottom of each emitter radial tooth root 1035 to the center of the ring may or may not be equal, or may be only partially equal.
Further, the distance from the tip of the emitter radial teeth 1031 to the center of the ring may be smaller than the radius d2 of the emitter annular inner wall 1034 or may be larger than the radius d2 of the emitter annular inner wall 1034, i.e., the tip of the emitter radial teeth 1031 may be optionally sunk into the emitter annular inner wall 1034 or protrude from the emitter annular inner wall 1034.
Further, the distance from the bottom of the emitter radial tooth root 1035 to the center of the ring is generally greater than the radius d2 of the annular inner wall of the emitter, avoiding blocking the circular hole in the middle of the emitter 103.
In order to further increase the density of the plasma generated by the electrode, in some embodiments of the present invention, referring to fig. 2 to 5, at least one emitter axial tooth 1032 is provided on the end surface of the emitter 103, and similarly, the emitter axial tooth 1032 can generate a plasma with a higher density due to a higher tip discharge capability.
The number of the emitter axial teeth 1032 in the present invention may be 1, or may be 2 or more, more typically, 4 emitter axial teeth 1032 are crisscross, and each emitter axial tooth 1032 may be distributed at any angle about the axis of the ring, may be symmetrically distributed, or may be equally distributed at equal angles.
Further, the shape of the emitter axial teeth 1032 may be triangular, or may be a segment, an oval segment, a trapezoid, a bell-jar, or an involute tooth. When there are at least 2 emitter axial teeth 1032, the shape of each tooth may be the same or may be different; it is also possible that when there are at least 3 emitter axial teeth 1032, they are only partially identical.
Further, the tooth height d3 of the emitter axial teeth 1032 on the annular outer end surface of the emitter 103 is typically between 0.1mm and 5.0mm, typically between 0.2mm and 3.0mm, and more typically between 0.3mm and 2.0mm, and the tooth heights of each tooth may be equal, or may be unequal, or may be only partially equal.
Further, the thickness of the emitter axial teeth 1032 on the outer end face of the emitter 103 ring is typically 0.5 to 2 times, typically 0.8 to 1.5 times, and more typically 1 to 1.2 times the thickness of the emitter 103 ring body.
In addition, the material of the emitter is tungsten, or molybdenum, or tungsten-rhenium alloy, and the emitter is processed by special melting process; the outer diameter d5 of the return electrode 104 is typically between 0.8mm and 5mm in size, typically between 1.2mm and 3 mm.
In some embodiments of the present invention, referring to fig. 2, the outer side surface of the emitter axial teeth 1032 coincides with the outer circumferential surface of the emitter 103, so as to facilitate processing; the outer sides of the emitter axial teeth 1032 may not coincide with the outer circumferential surface of the emitter 103.
In addition, the distance d4 from the inner wall of the emitter axial teeth 1032 to the center of the emitter annular inner wall 1034 is greater than the radius d2 of the emitter annular inner wall 1034, avoiding the emitter axial teeth 1032 from covering the circular hole in the middle of the emitter 103.
Wherein the diameter of emitter annular inner wall 1034 is noted as d1, i.e., 2 times the radius d2 of emitter annular inner wall 1034.
In view of the installation and fixation of the emitter 103, in some embodiments of the present invention, referring to fig. 2 to 6, the working end 100 of the plasma operation electrode further includes a ball wire drawing 109, and the outer side of the middle insulator 105 is concaved inwards to form a ball wire drawing installation groove 1051 adapted to the ball wire drawing 109, and the emitter 103 is disposed on the middle insulator 105 through the ball wire drawing 109.
In the invention, the round hole of the emitter 103 with several equal diameters is a ball head wire drawing mounting hole 1033, and the number of the ball head wire drawing mounting holes 1033 is generally 3, or can be 4, or can be 2, or equal to or more than 5 when necessary.
The position of the ball head wiredrawing mounting hole 1033 can be at any position of the circular ring of the emitter 103, and is generally in a sector area of a connecting line between the tooth tops of two emitter axial teeth 1032 and the center of the circular ring of the emitter 103; the included angle between the center of the ball head wire drawing mounting hole 1033 and the center of the circular ring of the emitter 103 can be any angle; when the number of the ball-end wiredrawing mounting holes 1033 is 3 or 4, the included angles of the hole centers with respect to the ring centers of the emitters 103 are generally distributed at equal angles.
Specifically, the ball head wiredrawing installation groove 1051 in the patent of the invention is generally provided with a plurality of ball head wiredrawing installation grooves which are not only penetrated through the whole cylindrical surface, but also not penetrated through the whole cylindrical surface; at least one ball head wire drawing mounting groove 1051 penetrates through the whole cylindrical surface, but the same end of all ball head wire drawing mounting grooves 1051 is necessarily penetrated through the head end surface of the cylinder of the middle insulator 105; the cross-sectional shape of the ball head wire drawing mounting groove 1051 may be a circular segment, an elliptical segment, a triangle, a polygon (the number of sides is equal to or greater than 4), etc., and the cross-sectional shape of each groove may be the same or different, or may be only partially the same, and the more common cross-sectional shape is a circular segment.
Further, the ball-end wire-drawing mounting groove 1051 in the present invention should accommodate the placement of the ball-end wire-drawing 109, and the number of the ball-end wire-drawing mounting grooves 1051 is usually 3, but may be 4, or may be equal to or greater than 5, or may be even 2, if necessary.
Furthermore, the distances from the center of the ball head wire drawing mounting grooves 1051 to the axis of the middle insulator 105 are equal, and the included angles between the ball head wire drawing mounting grooves 1051 about the axis of the cylinder can be distributed at will, and are generally distributed at equal angles; the ball head wiredrawing mounting slots 1051 are more commonly distributed at 90 degrees when the number is 3 or 4.
The ball-end wire drawing 109 is a thin wire with one end being spherical and made of metal, the material of the ball-end wire drawing 109 is generally refractory metal or alloy such as tungsten, molybdenum, tungsten-rhenium alloy, etc., the lengths of the ball-end wire drawing 109 can be equal or unequal, but at least one of the lengths should exceed the sum of the thickness of the ring of the emitter 103 and the length of the middle insulator 105, and ensure that enough length can be exposed to connect the wires, and the spherical diameter of the ball-end wire drawing 109 is larger than the aperture of the ball-end wire drawing mounting hole 1033.
In particular, the role of the ball head wire drawing 109 in the present invention is mainly two:
Firstly, the ball head wire drawing 109 plays a role of fixing the emitter 103, the ball head wire drawing 109 penetrates through the ball head wire drawing mounting hole 1033 on the circular surface of the emitter 103 and is inserted into the ball head wire drawing mounting groove 1051 on the middle insulator 105, the ball head wire drawing ball head 1091 of the ball head wire drawing 109 is exposed out of the circular end surface of the emitter 103, so that the emitter 103 is pressed on the head end surface of the middle insulator 105, then the ball head wire drawing 109 is fixed in the ball head wire drawing mounting groove 1051 on the middle insulator 105 by using the high-temperature resistant adhesive 119, and finally the emitter 103 is fixed on the middle insulator 105.
Secondly, the ball head wire drawing 109 plays a role of transmitting high-frequency energy, and the ball head wire drawing 109 with the length exceeding the sum of the thickness of the circular ring of the emitter 103 and the length of the middle insulator 105 is arranged in a ball head wire drawing mounting groove 1051 penetrating through the whole cylinder of the middle insulator 105, wherein the ball head wire drawing tail end 1092 of the ball head wire drawing 109 is exposed out of the tail end of the middle insulator 105 so as to be connected with a wire; the bulb wire 109 is then secured to the middle insulator 105 in the bulb wire mounting groove 1051 with a high temperature resistant adhesive 119 to secure the emitter 103 to the middle insulator 105.
In some embodiments of the present invention, referring to fig. 3, the working end 100 of the plasma surgical electrode further includes an inner insulating layer 118, wherein the inner insulating layer 118 is disposed outside the return electrode 104, and the outer surface of the portion of the tail end 1042 of the return electrode beyond the middle insulator 105 is covered by the inner insulating layer 118 to ensure insulation from the outside.
The inner insulating layer 118 is generally made of a heat-shrinkable polymer material, and is commonly used as a PET heat shrink tube.
In view of the installation and fixation of the middle insulator 105, in some embodiments of the present invention, please refer to fig. 2 to 6, the working end 100 of the plasma operation electrode further includes a support outer tube 108, the support outer tube 108 is disposed on the outer side of the middle insulator 105, the wall of the support outer tube 108 is provided with a glue adding hole 110, the radial angle of the glue adding hole 110 is the same as the radial angle of the ball head wire drawing installation groove 1051, the ball head wire drawing installation groove 1051 is aligned with the glue adding hole 110 on the wall of the support outer tube 108 during installation, and then a high temperature resistant adhesive 119 is added into the glue adding hole 110 to fix the ball head wire drawing 109 together with the middle insulator 105 and the support outer tube 108.
In some embodiments of the present invention, referring to fig. 2 to 6, the working end 100 of the plasma surgical electrode further includes an outer insulating layer 102, where the outer insulating layer 102 is disposed outside the outer supporting tube 108 and beyond the complete cylindrical surface portion of the outer supporting tube 108, so as to insulate the outer supporting tube 108 from the outside.
The outer insulating layer 102 is generally a heat shrinkable polymer material, usually a PET heat shrinkable tube. The outer insulating layer 102 may be any color, typically black, or white; the outer insulating layer 102 is typically heat shrunk onto the surface of the entire complete cylindrical surface supporting the outer tube 108; the outer insulating layer 102 should exceed the front end surface of the complete cylindrical surface portion of the support outer tube 108 by a distance d7, d7 being greater than 0, the outer insulating layer 102 exceeds the cylindrical surface portion of the support outer tube 108.
Specifically, the return electrode 104 is generally made of stainless steel tubing, the return electrode 104 is mounted in a hole in the center of the middle insulator 105 and is fixed to the middle insulator 105 by a high temperature resistant adhesive 119, wherein the portion of the rear end 1042 of the return electrode beyond the outer surface of the middle insulator 105 is coated with an inner insulating layer 118 to ensure insulation of the rear end 1042 of the return electrode from the outside.
In order to enable smooth delivery of the medium solution 17 to the surgical site, in some embodiments of the present invention, referring to fig. 2 to 6, a medium solution outlet groove 107 extending in the axial direction is provided on the outer side surface of the middle insulator 105, and the medium solution outlet groove 107 and the inner wall of the supporting outer tube 108 form a tubular structure and form a channel through which the medium solution flows out.
The number of the medium solution outlet grooves 107 in the present invention may be 1 or more; when the number of the medium solution outlet grooves 107 is 2, the medium solution outlet grooves 107 can be symmetrically distributed about the axis of the cylinder or can be distributed at any angle; when the number of the medium solution outlet grooves 107 is more than 2, the medium solution outlet grooves 107 can be distributed at equal angles about the axis of the cylinder, or can be distributed at any angle; the medium solution outlet groove 107 generally penetrates through the whole cylinder, and the cross section shape can be a circular segment, an elliptical segment, a triangle or a polygon (the number of sides is equal to or greater than 4), etc., and the cross section shape of each groove of the medium solution outlet groove 107 can be the same or different, or can be only partially the same, and the more common cross section shape is a circular segment.
The cross section of the medium solution outlet groove 107 and the cross section of the ball-end drawing installation groove 1051 may be identical in shape, may be different from each other, or may be partially identical; common cross-sectional shapes are equally large circles or circular segments.
The return electrode 104 in the patent of the invention is an elongated thin-walled catheter made of metal, the material is generally medical stainless steel, and the tubular return electrode 104 is not only a waste liquid suction pipeline 116, but also a lead of the return electrode 104; the nozzle of the return electrode tip 1041 is a waste suction hole 106, and the inner tube of the return electrode 104 is a waste suction pipe 116.
In addition, the outer diameter d5 of the return electrode 104 must be smaller than the diameter of the circular shaft hole in the center of the middle insulator 105, the return electrode 104 passes through the inner hole of the circular ring body of the emitter 103, is installed in the circular shaft hole in the center of the middle insulator 105, is fixed in the center circular shaft hole of the middle insulator 105 by using a high temperature resistant adhesive 119, and the sealing between the return electrode 104 and the thin center circular shaft hole in the center of the middle insulator 105 must be completed by using the high temperature resistant adhesive 119, so that no liquid leakage can occur.
Further, the distance d6 from the outer end surface of the emitter electrode 103 when the return electrode 104 is mounted must be greater than or equal to the minimum value of the values d3 of the tooth heights of the axial teeth 1032 of the emitter electrode; the value of d6 is generally not more than 8mm, and the value is usually not more than 5mm.
In addition, the inner insulating layer 118 in the present invention is generally a heat shrinkable polymeric material, typically a PET heat shrinkable tube, which may be any color, typically black, or white, or transparent, and the inner insulating layer 118 is generally heat shrinkable to the outer tube surface of the return electrode 104.
In addition, the supporting outer tube 108 in the patent of the invention is a thin-walled catheter made of metal, the material is generally medical stainless steel, the supporting outer tube 108 is a main component of the plasma operation electrode shaft 101, and is used for providing structural strength for the plasma operation electrode 8 and connecting the plasma operation electrode working end 100 and the plasma operation electrode handle 111; the head end of the support outer tube 108 is part of the working end 100 of the plasma surgical electrode, and is also a base for mounting other parts of the working end 100 of the plasma surgical electrode; the trailing end of the support outer tube 108 is mounted inside the plasma-surgical-electrode handle 111.
Specifically, the inner diameter of the support outer tube 108 should be slightly larger than the outer diameter of the cylinder of the middle insulator 105; in some embodiments of the present invention, the dielectric solution outlet slot 107 has a length of exposed portion at the proximal end of the emitter electrode 103, and the exposed portion between the emitter electrode 103 and the support outer tube 108 forms an outlet for the dielectric solution, i.e., several tile-shaped portions are cut away to expose the dielectric solution outlet slot 107 on the cylinder of the middle insulator 105, the number and curvature of the cut-away tile-shaped portions being such that all of the dielectric solution outlet slot 107 is exposed; the length of the cut-out tiles generally does not exceed one-half the length of the middle insulator 105, typically does not exceed one-third of the length of the middle insulator 105, and more typically does not exceed one-fourth of the length of the middle insulator 105; the length of the cut tile may also be greater than one half the length of the middle insulator 105, if desired.
In the present invention, the pipe wall of the middle insulator 105 installed at the front end of the support outer pipe 108 is provided with a plurality of glue adding holes 110, the radial position of the center of each glue adding hole 110 overlaps with the center of the ball head wire drawing installation groove 1051 on the middle insulator 105, the edge of each glue adding hole 110 should not exceed the rear end face of the installed middle insulator 105, the distribution of the glue adding holes 110 along the axial direction of the support outer pipe 108 can be arbitrary, the centers of the glue adding holes 110 are usually located on the same plane, and more usually the centers of the glue adding holes 110 are located on the same plane perpendicular to the central axis of the support outer pipe 108.
In addition, the diameter of the glue hole 110 should not be smaller than the diameter of the ball-end wire drawing 109, and should not be larger than 4 times the groove width of the ball-end wire drawing mounting groove 1051 on the cylindrical surface of the middle insulator 105, and is usually not larger than 2 times the groove width of the ball-end wire drawing mounting groove 1051 on the cylindrical surface of the middle insulator 105.
In some embodiments of the present invention, the working end 100 of the plasma surgical electrode further comprises a sensor (not shown in the figures) configured to detect one or more of a voltage or impedance between the emitter 103 and the return electrode 104, a temperature of the emitter 103, a temperature of an inner or outer tube wall of the return electrode 104, a temperature of an inner or surface of the middle insulator 105, a temperature of an inner or outer wall of the supporting outer tube 108, and a temperature of a solution or generated plasma inside the emitter 103 and the return electrode 104, wherein the monitoring sensor mounted to the working end 100 of the plasma surgical electrode is capable of parameterizing a working state of the surgical electrode to facilitate more accurate control of the state of the surgical electrode, and the detected position may be one of the above positions or may be several of the positions detected simultaneously; when 2 or more positions are detected simultaneously, the functions of the sensors and the signal transmission are independent.
The sensor for detecting temperature can be a thermocouple, a thermal resistor or a thermal strain gauge, and is commonly used as a thermocouple.
In a second aspect, referring to fig. 1, the present invention provides a plasma operation electrode 8, wherein the plasma operation electrode 8 is a complete electrode product, and the plasma operation electrode 8 is composed of a plasma operation electrode working end 100, a plasma operation electrode shaft 101, a plasma operation electrode handle 111, and an integrated cable 117. The plasma operation electrode working end 100 and the plasma operation electrode handle 111 are connected through the plasma operation electrode shaft 101, wherein the plasma operation electrode working end 100 is arranged at the front end of the plasma operation electrode shaft 101, and the plasma operation electrode handle 111 is arranged at the rear end far away from the plasma operation electrode working end; the plasma operation electrode handle 111 is provided with a plurality of function control buttons, the function control buttons are configured to operate a switch on a control circuit board, the control circuit board is arranged in the plasma operation electrode handle and is in contact with the function control buttons, and the control circuit board is configured to switch the output of different function modes. The product function of the plasma-surgical electrode 8 is embodied by the plasma-surgical electrode working end 100.
In some embodiments of the present invention, referring to fig. 1, an integrated cable 117 is disposed within the plasma surgical electrode handle 111, the integrated cable 117 being configured to transmit energy and transmit signals.
In some embodiments of the present invention, referring to fig. 1 and 3, the ball-end wire drawing 109 includes a plurality of ball-end wire drawing 109, wherein the ball-end wire drawing 1092 of one ball-end wire drawing 109 is connected to the control circuit board through a metal wire and passes through the plasma operation electrode shaft 101, and finally integrated into the integrated cable 117, and the ball-end wire drawing 109 is configured to transmit the high-frequency energy from the control circuit board.
Specifically, in some embodiments of the present invention, referring to fig. 1, the control buttons include a high power output button 112, a low power output button 113, and a power shift switch button 114, the high power output button 112 is configured in a cutting or ablation mode of the start-stop control circuit board, the low power output button 113 is configured in a coagulation mode of the start-stop control circuit board, and the power shift switch button 114 is configured to adjust the output power.
Further, the return electrode tail 1042 extends all the way through the plasma surgical electrode shaft 101, connects to the control circuit board connected to the high power output button 112, the low power output button 113, and the power shift button 114 in the plasma surgical electrode handle 111, and connects to the integrated cable 117.
Further, the ball wire drawing tail end 1092 of the ball wire drawing 109 is connected with a metal wire, penetrates through the plasma operation electrode shaft 101, is connected with a control circuit board connected with a high-power output button 112, a low-power output button 113 and a power gear switching button 114 in the plasma operation electrode handle 111, and is connected with an integrated cable 117; the ball wire tail 1092 and the metallic wire connected thereto are covered with a signal wire insulation layer 120 to ensure insulation from the dielectric solution 17.
In some embodiments of the present invention, referring to fig. 1, a medium solution input pipe 115 is disposed in the plasma operation electrode handle 111, the medium solution input pipe 115 is connected to the medium solution outlet groove 107 through the plasma operation electrode handle 111, and the medium solution input pipe 115 is configured to input the medium solution 17.
In some embodiments of the present invention, referring to fig. 1, a waste suction line 116 is disposed in the plasma surgical electrode handle 111, and a return electrode tail 1042 is extended and connected to the waste suction line 116 through the plasma surgical electrode shaft 101, wherein the waste suction line 116 is configured to discharge waste.
In some embodiments of the present invention, the signal wires of the sensor pass through the aperture between the middle insulator 105 and the support outer tube 108 and into the space between the support outer tube 108 and the inner insulating layer 118, and finally pass through the plasma surgical electrode shaft 101 to be integrated into the integrated cable 117; or the signal line of the sensor passes through the gap between the outer insulating layer 102 and the supporting outer tube 108, and finally passes through the plasma operation electrode shaft 101 to be integrated in the integrated cable 117. Further, the outer layer of the signal line of the sensor must be covered with an insulating layer to ensure mutual insulation between the metal wire or support outer tube 108 connected to the emitter 103 and the dielectric solution 17.
In some embodiments of the present invention, please refer to fig. 7, the surgical device includes a plasma surgical electrode 8 and a host 1, the host 1 is connected to an integrated cable 117 in a plasma surgical electrode handle 111 through an integrated plasma surgical electrode cable 9, the host 1 is configured to provide high-frequency energy, and the plasma surgical electrode 8 has the beneficial effects, and the plasma surgical device will not be described again.
The high-frequency energy provided by the host computer 1 is connected with an integrated cable 117 on the plasma operation electrode handle 111 through the integrated plasma operation electrode cable 9, and the high-power output button 112 and the low-power output button 113 on the plasma operation electrode handle 111 are used for selecting the working mode, and the power shift switch button 114 on the plasma operation electrode handle 111 is used for adjusting the power, so that the treatment functions of cutting, ablation or coagulation are realized.
Specifically, in some embodiments of the present invention, referring to fig. 7, the plasma surgical device further comprises a medium solution bag 16, the medium solution bag 16 is connected to the medium solution input pipeline 115 through the medium solution instillation pipeline 10, and the medium solution bag 16 is configured to store and deliver the medium solution 17, wherein the medium solution 17 in the medium solution bag 16 is delivered to the medium solution instillation pipeline 10 via the peristaltic pump 3.
In addition, the plasma surgical device further includes a foot switch 11 for controlling the operation of the plasma surgical electrode. The foot switch 11 may include a foot switch left pedal 13, a foot switch right pedal 14, and a shift pedal 15. The left pedal 13 of the foot switch corresponds to a start-stop cutting or ablation mode, and the right pedal 14 of the foot switch corresponds to a start-stop coagulation mode; the shift pedal 15 is used to adjust the magnitude of the output power. Further, the host 1 is provided with a foot switch interface 6, and the foot switch interface 6 is connected with a foot switch 11 through a foot switch cable 12.
The host computer 1 is also provided with a full touch color screen 2 and a power switch 4, wherein the full touch color screen 2 is used for displaying real-time data in operation, the power switch 4 is used for switching on or off the host computer 1, and the host computer 1 is connected with a power supply through a power line 7.
In summary, the present invention provides a plasma surgical electrode and a plasma surgical device including a working end of the plasma surgical electrode, which are mainly used for cutting, ablating and coagulating soft tissues of human bodies in otolaryngological diseases, and can also be used for joints, urology and gynecology. The smaller electrode tip outer diameter with titration function and the electric field along the radial direction of the electrode end surface make the plasma operation electrode more suitable for the operation application process requiring accurate operation and larger power energy output, and the manual control button combination scheme makes the electrode conveniently realize the functions of cutting, ablation and coagulation.
The invention has at least the following main advantages:
the structural layout of the annular emitter 103 at the periphery and the return electrode 104 at the center of the ring makes the generated plasma have larger density and stronger cutting and ablation capability.
The radial teeth 1031 and axial teeth 1032 can generate localized more dense plasmas with greater cutting and ablating capabilities.
The waste liquid suction hole 106 is formed by the inner tube of the return electrode 104, so that the structure of the electrode is more compact, and the waste liquid suction hole is positioned in the center of the working end surface of the electrode, thereby being convenient for sucking waste liquid.
The structural layout of the annular emitter 103 at the periphery and the return electrode 104 at the center of the annular ring of the emitter 103 ensures that the envelope surface of the generated plasma is completely within the peripheral circumferential dimension of the annular emitter 103, and the boundary is well-defined, thereby being beneficial to performing precise and fine surgical operations.
The use of the space between the extension tube of the return electrode 104 and its outer supporting outer tube 108 as the medium solution inlet conduit 115 simplifies the structural components of the electrode.
The medium solution outlet groove 107 is close to the emitter 103, so that the medium solution 17 can be delivered to the operation site more timely, and the delivery amount of the medium solution 17 can be controlled accurately.
The media solution outlet slot 107 parallel to the plasma surgical electrode axis 101 avoids radial flow of the media solution 17 at the outlet.
The monitoring sensor arranged at the working end of the plasma operation electrode 8 can parameterize the working state of the operation electrode, which is beneficial to more accurately controlling the state of the plasma operation electrode 8.
The temperature of the working end 100 of the plasma operation electrode can be monitored more accurately by using a thermal resistor, a thermocouple or a thermal strain gauge as a monitoring sensor.
While embodiments of the present invention have been described in detail hereinabove, it will be apparent to those skilled in the art that various modifications and variations can be made to these embodiments. It is to be understood, however, that such modifications and variations are within the scope and spirit of the present invention as defined in the appended claims. Moreover, the invention described herein is capable of other embodiments and of being practiced or of being carried out in various ways.
Claims (23)
1. A plasma surgical electrode working end, said working end comprising:
a middle insulator having a columnar shape and disposed between the positive and negative electrodes constituting the circuit;
an emitter provided at one end of the middle insulator, the emitter being ring-shaped and arranged at a positive electrode constituting a circuit; and
a return electrode provided at an axial center position within the middle insulator and arranged at a negative electrode constituting a circuit;
wherein the emitter and the return electrode are capable of initiating a plasma in a dielectric solution and forming an electrical circuit.
2. The working end of claim 1 wherein the return electrode is tubular, an end of the return electrode forming a waste suction aperture configured to draw waste;
the return electrode penetrates through the axle center of the middle insulator, and the tail end of the return electrode is always prolonged, penetrates through the plasma operation electrode axle and is connected with the plasma operation electrode handle.
3. The working end of claim 2, wherein the emitter annular inner wall of the emitter is provided with at least one emitter radial tooth configured to generate a plasma.
4. A working end according to claim 3, characterized in that the end face of the emitter is provided with at least one emitter axial tooth configured to generate a plasma.
5. The working end of claim 4 wherein the outer side of the emitter axial teeth coincides with the outer circumferential surface of the emitter;
the distance from the inner wall of the emitter axial tooth to the center of the annular inner wall of the emitter is greater than the radius of the annular inner wall of the emitter.
6. The working end of any one of claims 1 to 5, further comprising a ball head wire drawing, wherein the outer side of the middle insulator is recessed inward to form a ball head wire drawing mounting groove adapted to the ball head wire drawing, and the emitter is arranged on the middle insulator through the ball head wire drawing.
7. The working end of claim 6 further comprising an inner insulating layer disposed on the outside of the return electrode, and wherein the outer surface of the return electrode trailing end beyond the middle insulator portion is coated with the inner insulating layer to ensure insulation from the outside.
8. The working end of claim 7, further comprising a support outer tube disposed outside the middle insulator, wherein a glue hole is formed in a tube wall of the support outer tube, and a radial angle of the glue hole is the same as a radial angle of the ball head wire drawing mounting groove, and the glue hole is configured to fix the ball head wire drawing, the middle insulator and the support outer tube together after adding the high temperature resistant adhesive.
9. The working end of claim 8 further comprising an outer insulating layer disposed outside of the support outer tube and beyond a full cylindrical surface portion of the support outer tube.
10. The working end according to claim 9, wherein the outer side surface of the middle insulator is provided with a medium solution outlet groove extending along the axial direction, and the medium solution outlet groove and the inner wall of the supporting outer tube form a tubular structure and form a medium solution outflow channel.
11. The working end of claim 10 wherein the dielectric solution outlet slot has an exposed portion length at the proximal end of the emitter, the exposed portion between the emitter and the support outer tube forming the outlet for the dielectric solution.
12. The working end of claim 6 wherein at least one of the ball wire strands has a length exceeding the sum of the thickness of the emitter and the length of the middle insulator, the ball wire strands being configured to transmit high frequency energy.
13. The working end of claim 4 wherein the distance of the return electrode beyond the emitter outer end face is no less than the minimum of the tooth heights of all of the emitter axial teeth.
14. The working end of claim 8 further comprising a sensor configured to detect one or more of a voltage or impedance between the emitter electrode and the return electrode, a temperature of the emitter electrode, an inner or outer wall temperature of the return electrode, an inner or surface temperature of the middle insulator, an inner or outer wall temperature of the supporting outer tube, and an inner temperature of a solution or generated plasma between the emitter electrode and the return electrode.
15. A plasma surgical electrode, the surgical electrode comprising:
the working end of the plasma-surgical electrode according to any one of claim 1 to 14,
a plasma surgical electrode shaft disposed to connect the plasma surgical electrode working end and a plasma surgical electrode handle;
the plasma operation electrode handle comprises a function control button and a control circuit board which are in contact, wherein a plurality of function control buttons are arranged on the plasma operation electrode handle and are configured to operate a switch on the control circuit board, and the control circuit board is arranged in the plasma operation electrode handle and is configured to switch the output of different function modes.
16. The surgical electrode of claim 15, wherein the control button comprises:
a high power output button configured to start and stop a cutting or ablation mode of the control circuit board;
a low power output button configured to start and stop a coagulation mode of the control circuit board; and
and the power gear switching button is configured to switch the power output gear of the control circuit board.
17. The surgical electrode of claim 15, wherein a dielectric solution input conduit is disposed within the plasma surgical electrode handle, the dielectric solution input conduit being in communication with the dielectric solution outlet slot through the plasma surgical electrode handle and the plasma surgical electrode shaft, the dielectric solution input conduit being configured to input a dielectric solution.
18. The surgical electrode of claim 15, wherein a waste aspiration conduit is disposed within the plasma surgical electrode handle, wherein the return electrode tail is elongated and communicates with the waste aspiration conduit through the plasma surgical electrode shaft, and wherein the waste aspiration conduit is configured to output waste.
19. The surgical electrode of claim 15, wherein an integrated cable is disposed within the plasma surgical electrode handle, the integrated cable configured to transmit energy and transmit signals.
20. The surgical electrode of claim 19, wherein the bulb wire drawing has a plurality of bulb wire drawing tails, wherein one bulb wire drawing tail is connected to the control circuit board through a metal wire and passes through the plasma surgical electrode shaft, and is finally integrated in the integrated cable, wherein the bulb wire drawing is configured to transmit high frequency energy from the control circuit board.
21. The surgical electrode of claim 15, wherein the signal wires of the sensor pass through the aperture between the middle insulator and the support outer tube and into the space between the support outer tube and the inner insulating layer, and finally pass through the plasma surgical electrode shaft to be assembled within the integrated cable; or is or
The signal wire of the sensor passes through the gap between the outer insulating layer and the supporting outer tube and finally passes through the plasma operation electrode shaft to be assembled in the integrated cable.
22. A plasma surgical device, the surgical device comprising:
the plasma-surgical electrode of any one of claims 15 to 21; and
the system comprises a host computer, a plasma operation electrode handle, a plasma operation electrode cable, a control unit and a control unit, wherein the host computer is connected with the integrated cable in the plasma operation electrode handle through the integrated plasma operation electrode cable and is configured to provide high-frequency energy.
23. The surgical device of claim 22, further comprising a media solution bag connected to the media solution input conduit by a media solution drip conduit, the media solution bag configured to store and deliver a media solution.
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| CN116236273A (en) * | 2023-02-28 | 2023-06-09 | 北京大学深圳医院 | Plasma electrode rod assembly, plasma electrode and electrode system |
| CN219538482U (en) * | 2023-03-04 | 2023-08-18 | 苏州爱科硕科技有限公司 | Radio frequency plasma operation electrode |
| CN219983027U (en) * | 2023-09-28 | 2023-11-10 | 上海意昕医疗科技有限公司 | Plasma electrode |
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