Plasma electrodes and plasma equipment

Abstract

The present invention provides a plasma electrode, comprising a shell, an insulating sleeve, a function selection unit, a sealing portion, at least one electrode rod, at least one electrode head, at least one sliding contact portion, a fixed contact portion, and an inner burette. In the plasma electrode, the plasma electrode comprises at least one electrode rod and at least one electrode head, the electrode rod is arranged in the shell, the number of the electrode heads matches the electrode rod, and the electrode heads are arranged at one end of the corresponding electrode rod facing the outside of the shell, the shapes of the electrode heads are different, and they are used to achieve electrolysis of different intensities, and the electrodes can be switched, so that the electrodes can be adjusted according to the condition; the plasma electrode comprises a function selection unit, which is arranged on the outside of the shell, and is used for function selection, which is convenient for control by hand, without the need for a foot switch, thereby reducing the difficulty of operation. The present invention also provides a plasma device.

Description

Technical Field

[0001] The invention relates to the technical field of plasma electrodes, and in particular to a plasma electrode and a plasma device. Background Art

[0002] Plasma radio frequency uses the energy generated by the bipolar electrode to convert the electrolyte between the radio frequency electrode head and the tissue into a plasma film. After the charged particles in the plasma are accelerated by the electric field, they transfer energy to the tissue, dissociate the molecular bonds that make up the cells in the target tissue, and cause the cells in the target tissue to disintegrate into molecular units, decompose into carbohydrates and oxides, and cause tissue coagulative necrosis, necrotic tissue shedding or scar contraction, forming a tissue cutting effect. Compared with traditional radio frequency, plasma can perform cutting, ablation and other surgeries on tissues at a lower radio frequency (110KHz) and a lower temperature (40-70°C).

[0003] In the prior art, the emitting electrode of the plasma electrode has a single shape and cannot be adjusted, and cannot be adjusted in real time according to the patient's condition, which cannot meet the needs of medical staff. In addition, the existing plasma electrode is controlled by a foot switch, which is difficult to operate.

[0004] The Chinese invention patent with the authorization announcement number CN103429185B discloses an electrosurgical conductive gas cutting system for improving eschar, blocking blood vessels and tissues, an electrosurgical method and an electrosurgical device for simultaneously cutting and coagulating tissues using an electrosurgical device, wherein the electrosurgical device has an electrode and a channel, wherein the channel has a channel opening close to the proximal end of the electrode, wherein the method comprises the following steps: allowing an inert gas to flow through the channel and be discharged from the channel opening; when the inert gas flows through the channel, applying high-frequency energy to the electrode, wherein the high-frequency energy applied to the electrode continuously plasmatizes the inert gas discharged from the channel opening; by continuously plasmatizing the inert gas, the electrode is caused to discharge to the tissue; the tissue is cut using the electrode; when the tissue is cut using the electrode, the electrode is kept discharged by plasmatizing the inert gas, so that the coagulation of the tissue and the cutting are performed simultaneously. In this invention patent, the shape of the electrode is single and cannot be adjusted, which cannot meet the needs of medical staff, and the control switch is not set on the electrode, which is difficult to operate.

[0005] Therefore, it is necessary to provide a new type of plasma electrode and plasma equipment to solve the above problems existing in the prior art. Summary of the invention

[0006] The object of the present invention is to provide a plasma electrode and a plasma device, which are convenient for controlling the function of the electrode by hand and can switch the electrode to the required electrode shape according to the disease condition.

[0007] To achieve the above object, the plasma electrode of the present invention comprises:

[0008] The shell has a hollow structure;

[0009] An insulating sleeve, partially or completely disposed on the outside of the shell;

[0010] A function selection unit, disposed on the outer side of the housing, for performing function selection;

[0011] At least one electrode rod is disposed in the housing;

[0012] A sealing portion, disposed in the insulating sleeve, used to seal the gap between the electrode rod and the insulating sleeve, and slidably connected to the electrode rod;

[0013] At least one electrode head, the number of which matches that of the electrode rods and is disposed at one end of the corresponding electrode rod facing the outside of the shell, the shapes of the electrode heads being different for achieving electrolysis of different intensities;

[0014] At least one sliding contact portion, the number of which matches that of the electrode rods and is disposed at one end of the corresponding electrode rod facing outside the housing;

[0015] A fixed contact portion connected to the function selection unit and also slidably connected to the sliding contact portion;

[0016] The inner burette is arranged inside or outside the shell, is communicated with the insulating sleeve, and is used for conveying liquid into the insulating sleeve.

[0017] The beneficial effects of the present invention are as follows: the plasma electrode comprises at least one electrode rod and at least one electrode head, the electrode rod is arranged in the shell, the number of the electrode heads is adapted to the electrode rod, and the electrode heads are arranged at one end of the corresponding electrode rod facing the outside of the shell, the shapes of the electrode heads are different, and they are used to achieve electrolysis of different intensities, and the electrodes can be switched to switch the required electrode shape according to the condition of the disease; the plasma electrode comprises a function selection unit, which is arranged on the outside of the shell and is used for function selection, which is convenient for control by hand, without the need for a foot switch, thereby reducing the difficulty of operation.

[0018] Preferably, the electrode head includes a positive electrode, a negative electrode and an insulating end, the positive electrode and the negative electrode are fixed on the insulating end, and the sliding contact part includes a first sliding contact part and a second sliding contact part, the first sliding contact part is connected to the positive electrode, and the second sliding contact part is connected to the negative electrode.

[0019] Further preferably, the fixed contact portion includes a first fixed contact unit and a second fixed contact unit, the first fixed contact unit includes at least one positive contact unit, the number of the positive contact units is the same as the number of the first sliding contact portion, the second fixed contact unit includes at least one negative contact unit, the number of the negative contact units is the same as the number of the second sliding contact portion, wherein when any of the electrode rods is used, the first sliding contact portion and the second sliding contact portion both move with the electrode rod toward the outside of the shell until the first sliding contact portion contacts the positive contact unit, and the second sliding contact portion contacts the negative contact unit.

[0020] Further preferably, the negative electrode is connected to the electrode rod, and the shape of the positive electrode is one or more of a cone, a pyramid, a dome, a blade or a triangle. The beneficial effect is that the positive electrode has a variety of shapes, thereby being able to meet different perforation ablation requirements.

[0021] Further preferably, the external leakage area of ​​the positive electrode is smaller than the external leakage area of ​​the negative electrode. The beneficial effect is that it is convenient to discharge the positive electrode.

[0022] Further preferably, the negative electrode and the electrode rod are made of the same material and are integrally formed.

[0023] Preferably, a limiting portion is provided in one end of the insulating sleeve away from the shell, and a plurality of holes are formed on the limiting portion. The holes are matched with the number of the electrode rods. When any of the electrode rods is used, the electrode rod passes through the corresponding hole.

[0024] Further preferably, the limiting part and the sealing part are both bidirectional sealing rings, which has the beneficial effect of playing a sealing role to prevent liquid from leaking out.

[0025] Preferably, at least one sliding groove is provided on the shell, the number of the sliding grooves matches the number of the electrode rods, and a sliding rod is provided on the electrode rod, which extends to the outside of the shell through the sliding groove and is used to slide the sliding rod to drive the electrode rod to move.

[0026] Preferably, the plasma electrode further comprises an external burette, which is connected to the internal burette and is used for conveying physiological saline.

[0027] Further preferably, the outer burette is provided with a pumping assembly for providing power for delivering the physiological saline.

[0028] Further preferably, the pumping component is a peristaltic pump. Its beneficial effect is that the titration speed can be controlled.

[0029] Further preferably, the external burette is provided with a flow control valve for adjusting the flow of the external burette.

[0030] Preferably, the plasma electrode further comprises a cable connected to the function selection unit.

[0031] The present invention also provides a plasma device, comprising:

[0032] The plasma electrode;

[0033] A plasma generator connected to the plasma electrode BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2 Some embodiments of the present invention Figure 1 A is a schematic diagram of the enlarged structure of the middle part;

[0036] Figure 3 Some other embodiments of the present invention Figure 1 A is a schematic diagram of the enlarged structure of the middle part;

[0037] Figure 4 It is a schematic diagram of the structure inside the housing of the present invention;

[0038] Figure 5 For the present invention Figure 4 Schematic diagram of the enlarged structure of B. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Unless otherwise defined, the technical terms or scientific terms used herein should be understood by people with general skills in the field to which the present invention belongs. "Including" and similar words used in this article mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

[0040] In view of the problems existing in the prior art, an embodiment of the present invention provides a plasma electrode, referring to Figures 1 to 5 The plasma electrode 10 includes a shell 101, an insulating sleeve 102, a function selection unit 103, a sealing portion 104, at least one electrode rod 105, at least one electrode head 106, at least one sliding contact portion 107, a fixed contact portion 108, an inner burette 109, an outer burette 110 and a cable 111.

[0041] Some embodiments further provide a plasma device, including the plasma electrode and a plasma generator, wherein the plasma electrode is connected to the plasma generator.

[0042] In some embodiments, the shell is a hollow structure; the insulating sleeve is partially or completely arranged on the outside of the shell; the function selection unit is arranged on the outside of the shell for function selection; the electrode rod is arranged in the shell; the sealing part is arranged in the insulating sleeve for sealing the gap between the electrode rod and the insulating sleeve and is slidably connected to the electrode rod; the number of the electrode heads is adapted to the electrode rod, and they are arranged at one end of the corresponding electrode rod facing the outside of the shell, and the shapes of the electrode heads are different for achieving electrolysis of different intensities; the at least A sliding contact part, the number of which matches that of the electrode rod, and is arranged at one end of the corresponding electrode rod facing the outside of the shell; the fixed contact part is connected to the function selection unit, and is also slidably connected to the sliding contact part; the inner burette is arranged inside or outside the shell, and is connected to the insulating sleeve, and is used to transport liquid into the insulating sleeve, specifically, the inner burette is connected to the inner wall of the insulating sleeve; the outer burette is connected to the inner burette, and is used to transport physiological saline; the cable is used to connect to the ion generator, and the cable is connected to the function selection unit. Among them, the plasma generators are all prior art and will not be repeated here.

[0043] Reference Figure 1 The housing 101 is cylindrical and made of insulating material. A fixing hole is provided at one end of the housing 101. The insulating sleeve 102 is cylindrical and passes through the fixing hole (not shown) so that the insulating sleeve 102 is partially located in the housing 101. Specifically, the housing 101 and the insulating sleeve 102 are made of hard plastic, such as polyethylene (PE), polypropylene (PP), etc.

[0044] Reference Figure 1The function selection unit 103 includes a first button 1031, a second button 1032, a third button 1033 and a circuit board (not shown in the figure). The first button 1031 is used to select the cutting function, the second button 1032 is used to select the coagulation function, and the third button 1033 is used to adjust the power. The circuit of the circuit board is the same as the foot switch of the plasma electrode in the prior art, and will not be repeated here. In some embodiments, the first button 1031, the second button 1032 and the third button 1033 can be replaced by corresponding knobs or touch switches.

[0045] Reference Figures 2 to 4 The electrode head 106 includes a positive electrode 1061, a negative electrode 1062 and an insulating end 1063, wherein the positive electrode 1061 and the negative electrode 1062 are fixed on the insulating end 1063, and the sliding contact portion 107 includes a first sliding contact portion 1071 and a second sliding contact portion 1072, wherein the first sliding contact portion 1071 is connected to the positive electrode 1061, and the second sliding contact portion 1072 is connected to the negative electrode 1062. Preferably, the material of the positive electrode 1061 and the negative electrode 1062 is a metal material, such as tungsten, molybdenum, titanium or stainless steel, and the material of the insulating end 1063 is zirconium oxide or aluminum oxide.

[0046] In some embodiments, reference Figure 2 The negative electrode 1062 and the electrode rod are made of the same material and are integrally formed.

[0047] In some other embodiments, referring to Figure 3 The negative electrode 1062 is connected to the electrode rod 105, and the electrode rod 105 is made of insulating material.

[0048] In some embodiments, the shape of the positive electrode is one or more of a cone, a pyramid, a dome, a blade or a triangle. Preferably, the positive electrode, the negative electrode and the insulating end are arranged on a straight line. Preferably, the external leakage area of ​​the positive electrode is smaller than the external leakage area of ​​the negative electrode.

[0049] Reference Figure 4 The fixed contact portion 108 includes a first fixed contact unit 1081 and a second fixed contact unit 1082 .

[0050] Reference Figure 4 and Figure 5, the first fixed contact unit 1081 includes a first fixed ring 10811, at least one first bracket 10812 and at least one positive contact unit 10813. The first fixed ring 10811 is annular, the outer wall of the first fixed ring 10811 is fixedly connected to the inner wall of the shell 101, and the axis of the shell 101 coincides with the axis of the first fixed ring 10811. The first bracket 10812 is fixed on the inner wall of the first fixed ring 10811 and points to the axis of the first fixed ring 10811. The positive contact unit 10813 is circular, semicircular, plate-shaped, spherical, etc., and is arranged at one end of the first bracket 10812 pointing to the axis of the first fixed ring 10811, wherein the positive contact unit 10813 is connected to the positive electrode of the plasma generator through the function selection unit 103. Preferably, the positive contact unit 10813 is semicircular.

[0051] Reference Figure 4 and Figure 5 The second fixed contact unit 1082 includes a second fixed ring 10821, at least one second bracket 10822 and at least one negative contact unit 10823. The second fixed ring 10821 is annular, the outer wall of the second fixed ring 10821 is fixedly connected to the inner wall of the shell 101, and the axis of the shell 101 coincides with the axis of the second fixed ring 10821. The second bracket 10822 is fixed on the inner wall of the second fixed ring 10821 and points to the axis of the second fixed ring 10821. The negative contact unit 10823 is circular, semicircular, plate-shaped, spherical, etc., and is arranged at one end of the second bracket 10822 pointing to the axis of the second fixed ring 10821. Among them, the negative contact unit 10823 is connected to the negative electrode of the plasma generator through the function selection unit 103. Preferably, the negative contact unit 10823 is semicircular.

[0052] In some embodiments, the number of the positive electrode contact units is the same as the number of the first sliding contact parts, and the number of the negative electrode contact units is the same as the number of the second sliding contact parts, wherein when any of the electrode rods is used, the first sliding contact parts and the second sliding contact parts both move with the electrode rod toward the outside of the shell until the first sliding contact parts contact the positive electrode contact units and the second sliding contact parts contact the negative electrode contact units.

[0053] In some embodiments, the positive electrode contact unit, the negative electrode contact unit, the first sliding contact portion, and the second sliding contact portion are made of metal, specifically copper, which has strong corrosion resistance and improves the practical life.

[0054] In some other embodiments, the contact surface between the positive electrode contact unit and the first sliding contact part is made of metal material, while the other parts are made of insulating material; the contact surface between the first sliding contact part and the positive electrode contact unit is made of metal material, while the other parts are made of insulating material; the contact surface between the negative electrode contact unit and the second sliding contact part is made of metal, while the other parts are made of insulating material; the contact surface between the second sliding contact part and the negative electrode contact unit is made of metal, while the other parts are made of insulating material.

[0055] In some embodiments, the positive electrode is connected to the first sliding contact portion through a first conductive metal, the negative electrode is connected to the second sliding contact portion through a second conductive metal, the positive electrode contact unit is connected to the function selection unit through a third conductive metal, and the negative electrode contact unit is connected to the function selection unit through a fourth conductive metal. The first conductive metal and the second conductive metal are arranged along the electrode rod, and the first conductive metal and the second conductive metal are embedded in the conductive rod, or they can be arranged along the outer surface or inner surface of the conductive rod. Preferably, the outer sides of the first conductive metal, the second conductive metal, the third conductive metal and the fourth conductive metal are all provided with an insulating layer to avoid accidental conduction.

[0056] Reference Figure 2 and Figure 3 A stopper 1021 is provided in one end of the insulating sleeve 102 away from the housing 101. A plurality of holes are provided on the stopper 1021. The holes are matched with the number of the electrode rods 105. When any of the electrode rods 105 is used, the electrode rods 105 pass through the corresponding holes. When one of the holes extends out of the electrode rod 105, the other holes are used as titration channels for titrating the physiological saline in the insulating sleeve.

[0057] In some embodiments, the limiting portion and the sealing portion are both bidirectional sealing rings, or other sealing devices that can achieve sealing and form a sliding connection with the electrode rod.

[0058] Reference Figure 1 , Figure 4 and Figure 5 At least one sliding groove 1011 is provided on the shell 101, and the number of the sliding grooves 1011 matches the number of the electrode rods 105. The electrode rods 105 are provided with sliding rods 1051, and the sliding rods 1051 extend to the outside of the shell 101 through the sliding grooves 1011, so as to slide the sliding rods 1051 to drive the electrode rods 105 to move.

[0059] Reference Figure 1The outer burette 110 is provided with a pumping assembly 1101 for providing power for delivering physiological saline. More preferably, the outer burette 110 is provided with a flow control valve 1102 for adjusting the flow of the outer burette 110. Specifically, the pumping assembly 1101 is a peristaltic pump.

[0060] Although the embodiments of the present invention are described in detail above, it is obvious to those skilled in the art that various modifications and variations can be made to these embodiments. However, it should be understood that such modifications and variations are within the scope and spirit of the present invention as described in the claims. Moreover, the present invention described herein may have other embodiments and may be implemented or realized in a variety of ways.

Claims

1. A plasma electrode, characterized in that: include: The shell has a hollow structure; An insulating sleeve, partially or completely disposed on the outside of the shell; A function selection unit, disposed on the outer side of the housing, for performing function selection; At least one electrode rod is arranged in the shell; a limiting portion is arranged in one end of the insulating sleeve away from the shell, and a plurality of holes are opened on the limiting portion, and the number of the holes matches the number of the electrode rods. When any of the electrode rods is used, the electrode rod passes through the corresponding hole; A sealing portion, disposed in the insulating sleeve, used to seal the gap between the electrode rod and the insulating sleeve, and slidably connected to the electrode rod; At least one electrode head, the number of which matches that of the electrode rods, and which is disposed at one end of the corresponding electrode rod facing the outside of the shell, and the shapes of the electrode heads are different, and are used to achieve electrolysis of different intensities; the electrode head comprises a positive electrode, a negative electrode and an insulating end, and the positive electrode and the negative electrode are fixed on the insulating end; at least one sliding contact portion, the number of which matches that of the electrode rods and is disposed at one end of the corresponding electrode rod facing outside the shell; the sliding contact portion comprises a first sliding contact portion and a second sliding contact portion, the first sliding contact portion is connected to the positive electrode, and the second sliding contact portion is connected to the negative electrode; a fixed contact portion connected to the function selection unit and also slidably connected to the sliding contact portion; the fixed contact portion includes a first fixed contact unit and a second fixed contact unit, the first fixed contact unit includes at least one positive contact unit, the number of the positive contact units is the same as the number of the first sliding contact portion, the second fixed contact unit includes at least one negative contact unit, the number of the negative contact units is the same as the number of the second sliding contact portion, wherein when any of the electrode rods is used, the first sliding contact portion and the second sliding contact portion both move with the electrode rod toward the outside of the shell until the first sliding contact portion contacts the positive contact unit, and the second sliding contact portion contacts the negative contact unit; The inner burette is arranged inside or outside the shell, is communicated with the insulating sleeve, and is used for conveying liquid into the insulating sleeve.

2. The plasma electrode according to claim 1, characterized in that The negative electrode is connected to the electrode rod, and the shape of the positive electrode is one or more of a cone, a pyramid, a dome, a blade or a triangle.

3. The plasma electrode according to claim 2, characterized in that The external leakage area of ​​the positive electrode is smaller than the external leakage area of ​​the negative electrode.

4. The plasma electrode according to claim 2 or 3, characterized in that: The negative electrode and the electrode rod are made of the same material and are integrally formed.

5. The plasma electrode according to claim 1, characterized in that: The limiting portion and the sealing portion are both bidirectional sealing rings.

6. The plasma electrode according to claim 1, characterized in that The shell is provided with at least one sliding groove, the number of the sliding grooves matches the number of the electrode rods, and the electrode rods are provided with sliding rods, which extend to the outside of the shell through the sliding grooves and are used to slide the sliding rods to drive the electrode rods to move.

7. The plasma electrode according to claim 1, characterized in that: It also includes an external burette, which is connected to the internal burette and is used to transport physiological saline.

8. The plasma electrode according to claim 7, characterized in that The outer burette is provided with a pumping assembly for providing power for conveying physiological saline.

9. The plasma electrode according to claim 8, characterized in that The pumping component is a peristaltic pump.

10. The plasma electrode according to claim 8 or 9, characterized in that: The external burette is provided with a flow control valve for adjusting the flow of the external burette.

11. The plasma electrode according to claim 1, characterized in that Also included is a cable connected to the function selection unit.

12. A plasma device, characterized in that: include: The plasma electrode according to any one of claims 1 to 11; A plasma generator is connected to the plasma electrode.

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