A low-temperature plasma electrode that can precisely focus energy

Abstract

The invention relates to the technical field of medical devices, and specifically to a low-temperature plasma electrode capable of accurately focusing energy; the electrode comprises a handle, a telescopic adjustment device, a function switching device, a fluid reversing device, a suction tube, a flushing tube, a power cord, a connecting sleeve, an electrode rod and an electrode head, wherein the telescopic adjustment device is arranged at a finger gripping position at the front end of the handle, the function switching device is arranged above the telescopic adjustment device, the fluid reversing device is arranged above the inside of the handle, the suction tube and the flushing tube are arranged at the tail of the handle and connected to the fluid reversing device, the power cord passes through the tail of the handle and extends outward, the connecting sleeve connects the handle with the electrode rod, and the electrode head is arranged at the front end of the electrode rod. The invention can better transfer energy to the system to make the energy more concentrated, and can improve the range of power output controlled by adjusting the telescopic adjustment device, thereby adjusting the temperature of the current solution, achieving low temperature throughout the operation, and improving the surgical effect of the low-temperature plasma electrode.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and specifically to a low-temperature plasma electrode capable of accurately focusing energy. Background Art

[0002] Minimally invasive surgery often involves tissue cutting and coagulation and hemostasis. Low-temperature (40℃-70℃) plasma uses the strong activity and high energy characteristics of low-temperature plasma to remove biological tissues or ablate diseased tissues. It has the advantages of small surgical wounds and fast postoperative recovery, which can greatly reduce the patient's pain and shorten the recovery period. In addition, compared with radiofrequency surgery, the temperature during the operation is lower, avoiding the phenomenon of carbonization of biological tissues caused by high temperature.

[0003] Low-temperature plasma ablation is a procedure that generates plasma by ionizing physiological saline. When it acts on biological tissues, it produces low-temperature decomposition effects and thermal effects. On the one hand, ions have strong activity and can break the molecular bonds of organic substances, react with cell proteins and nucleic acids, destroy cell membranes and kill cells; on the other hand, ions move back and forth along the direction of magnetic lines of force as the electromagnetic field changes rapidly. The friction between ions with higher energy generates heat, and high temperature can denature the proteins of cell tissues and dry up the blood.

[0004] However, the return electrode of the current low-temperature plasma electrode is usually not made on the outer hollow conductive electrode and is not a negative electrode, resulting in a mushroom-shaped distribution of the electromagnetic field. The power output range cannot be well controlled and the energy is not concentrated, which leads to an excessive number of excited plasmas, causing too much salt water to participate in the agitation, which in turn leads to too much plasma participating in frictional heat generation, causing the temperature to rise too quickly and the temperature control to fail. Summary of the invention

[0005] The purpose of the present invention is to solve the problems in the background technology and provide a low-temperature plasma electrode that can accurately focus energy. The low-temperature plasma electrode can control the range of power output by telescopically adjusting the electrode to make the energy more concentrated. At the same time, the design of the temperature sensor can well understand the temperature during the operation. By adjusting the distance between the electrodes, the whole low-temperature operation can be well achieved, thereby ensuring the accuracy of the operation. At the same time, the design of the diversion and fluid reversing device can better cope with the cleaning of the wound and the discharge of blood or ionized wastewater during the operation, thereby increasing the practicality of the present invention and the comfort of medical staff during use.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A low-temperature plasma electrode capable of accurately focusing energy comprises a handle, a telescopic adjustment device, a function switching device, a fluid reversing device, a suction tube, a flushing tube, a power cord, a connecting sleeve, an electrode rod and an electrode head; the telescopic adjustment device is arranged at the finger gripping position at the front end of the handle, the function switching device is arranged above the telescopic adjustment device, the fluid reversing device is arranged above the inside of the handle, the suction tube and the flushing tube are arranged at the tail of the handle and connected to the fluid reversing device, the power cord passes through the tail of the handle and extends outward, the connecting sleeve connects the handle with the electrode rod, and the electrode head is arranged at the front end of the electrode rod.

[0008] Preferably, the handle and the gripping part of the telescopic adjustment device are both slightly convex streamlined structures.

[0009] The handle and the telescopic adjustment device are designed to have a slightly convex streamlined structure, which perfectly fits the structure of the human palm, so that medical staff will not feel uncomfortable using the handle and the telescopic adjustment device during use.

[0010] Preferably, the function switching device comprises an electro-cutting button and an electro-coagulation button, the electro-cutting button and the electro-coagulation button are of different colors for easy distinction, and a slightly raised anti-error boss is provided on the surface of the electro-cutting button.

[0011] Preferably, the suction tube, the flushing tube and the power cord are all made of different colors.

[0012] The electrocutting and electrocoagulation buttons of the function switching device can realize the mutual switching between the electrocutting and electrocoagulation functions during use, making the use process more convenient and quick; when the electrocutting button is pressed during use, the current between the positive electrode and the negative electrode forms an electric field, ionizing the physiological saline around the electrodes and exciting it into plasma, which has strong activity and can break the molecular bonds of organic substances, react with cell proteins and nucleic acids, destroy cell membranes and kill cells, thereby achieving the purpose of cutting and decomposing diseased tissues; when the electrocoagulation button is pressed during use, ions move back and forth along the direction of magnetic lines of force as the electromagnetic field changes rapidly, and the friction between ions with higher energy generates heat, which can denature the protein of cell tissues and dry the blood, thereby achieving a coagulation effect;

[0013] At the same time, the error-proofing design with different colors can visually remind users that different colors correspond to different functions. The electric cutting button is equipped with an error-proofing boss, while the electric coagulation button is smooth, which allows users to determine the function of the button by the touch of their fingers without seeing it, adding tactile error-proofing to the visual error-proofing. Similarly, the color-differentiated error-proofing design of the suction tube, flushing tube and power cord gives the user a visual impact, reduces the memory burden of medical staff during use, and ensures the accuracy of the operation during the operation to a large extent.

[0014] Preferably, the fluid reversing device comprises a reversing valve, a reversing three-way pipe and a reversing joint, and the reversing valve is also provided with anti-error words on the handle housing.

[0015] The design of the fluid reversing device can realize the cleaning of the wound and the discharge of ionized waste water or blood water in one set of equipment, making the circulation of ionized water simpler and more convenient, increasing the functionality of the present invention while also improving the comfort of the use process; at the same time, the error-proof words of the reversing valve are set to flush-stop-suction words, which allows the user to intuitively see what function the current position of the reversing valve corresponds to, avoiding the occurrence of usage errors during use.

[0016] Preferably, the electrode rod comprises a negative electrode rod and a PE insulating tube, the negative electrode rod is a return electrode and has a hollow structure, and the PE insulating tube is shrink-wrapped on the outer surface of the negative electrode rod.

[0017] The hollow structure design of the negative electrode rod can wrap the telescopic insulating tube inside, so that the telescopic insulating tube can move smoothly without interference during the telescopic movement; the negative electrode is a return electrode, which can better transfer energy to the system, and the energy is more concentrated, which can make the electrocuting process more precise, and also improve the coagulation effect of electrocoagulation; the PE insulating tube is shrink-wrapped on the outer surface of the negative electrode rod, which can prevent the user from accidentally touching the negative electrode rod and being injured by the current between the positive and negative electrodes.

[0018] Preferably, the electrode head comprises a telescopic insulating tube and a ceramic base, the telescopic insulating tube is arranged in the hollow structure inside the negative electrode rod, and the head is connected to the ceramic base, and the tail is connected to the telescopic adjustment device.

[0019] Preferably, an electrode wire tube, a pinhole camera wire tube, a temperature sensor wire tube and a flow guide tube are arranged in the telescopic insulating tube; a positive electrode, a pinhole camera, a temperature sensor and a flow guide hole are arranged on the telescopic ceramic base.

[0020] The ceramic base is arranged on the telescopic insulating tube, and the movement of the telescopic insulating tube can move with the ceramic base. A pinhole camera and a temperature sensor are arranged on the ceramic base; the pinhole camera is designed to follow the electrode into the human tissue, and the real-time picture during the operation is projected onto the screen, which can record the entire operation process more clearly, and also provides convenience for the operation of medical staff during the operation, and is also of great help to postoperative medical training and medical function training; the temperature sensor is designed to monitor the temperature of the wound site in real time throughout the operation, and can ensure low-temperature operation throughout the operation, thereby improving the low-temperature operation effect of the low-temperature plasma electrode of the present invention, avoiding the occurrence of thermal damage to the tissue caused by high temperature or carbonization of biological tissue, and improving the accuracy of the operation.

[0021] Preferably, the telescopic adjusting device can be adjusted to drive the telescopic insulating tube to perform telescopic movement, thereby adjusting the distance between the telescopic electrode and the negative electrode rod to achieve temperature regulation.

[0022] By adjusting the telescopic adjustment device on the handle, the telescopic adjustment device will drive the telescopic insulating tube to perform telescopic movement, thereby adjusting the distance between the positive electrode and the negative electrode to control the power output range and make the energy more concentrated; by controlling the power range, the temperature of the ionized solution can be adjusted, thereby achieving low-temperature operation throughout the operation, improving the surgical effect of the low-temperature plasma electrode.

[0023] Preferably, the reversing three-way pipe is connected to the suction pipe and the flushing pipe at the same time, and is connected to the guide pipe through the reversing joint. Adjusting the reversing valve can adjust the inner passage of the reversing three-way pipe.

[0024] The reversing three-way tube can connect the suction tube and the flushing tube to a guide tube, and the reversing valve is used to control the passage in the switching tube to realize the suction or flushing function. This structural design enables a set of devices to realize multiple functions at the same time, and can better cope with the cleaning of wounds and the discharge of blood or ionized waste water during surgery, which greatly increases the practicality of the present invention, and also avoids the situation where medical staff need to switch back and forth to use surgical instruments during surgery, thereby increasing the comfort of medical staff.

[0025] In summary, the beneficial effects of the present invention are:

[0026] 1. The low-temperature plasma electrode capable of accurately focusing energy described in the present invention has a handle and a telescopic adjustment device, the gripping parts of which are designed to be slightly convex streamlined structures, which can perfectly fit the structure of the human palm when in use. Medical staff will not feel any knocks on their palms and fingers during use, which greatly increases the comfort of the present invention and also improves the accuracy of the surgical process;

[0027] 2. The low-temperature plasma electrode capable of accurately focusing energy described in the present invention has a color misplacement design and a boss misplacement prevention design for the electro-cutting and electro-coagulation buttons of its function switching device, as well as a color misplacement prevention design for the suction tube, the flushing tube and the power cord, which can give the user a visual or tactile impact during use, thereby ensuring to a large extent that there will be no functional misuse during the operation, thereby improving the accuracy of the surgical operation;

[0028] 3. The low-temperature plasma electrode capable of precisely focusing energy and the design of the fluid reversing device of the present invention can simultaneously realize the cleaning of wounds and the discharge of ionized waste water or blood water on the same set of devices, making the circulation of ionized water simpler and more convenient, thereby increasing the functionality and practicality of the present invention;

[0029] 4. The low-temperature plasma electrode capable of accurately focusing energy described in the present invention, the pinhole camera and the temperature sensor on the ceramic base can project real-time images during the operation onto the screen, and can record the entire operation process more clearly, which also provides convenience for the operation of medical staff and is also of great help to postoperative medical training; the temperature sensor can monitor the temperature of the surgical site in real time throughout the operation, ensure low-temperature operation throughout the operation, and improve the effect of low-temperature surgery and the accuracy of the operation;

[0030] 5. The low-temperature plasma electrode described in the present invention can accurately focus energy. The negative electrode is a reflux electrode, which can better transfer energy to the system to make the energy more concentrated. At the same time, the design of the telescopic adjustment device can drive the telescopic insulating tube to do telescopic movement, thereby adjusting the distance between the positive electrode and the negative electrode to control the power output range. By controlling the power range, the temperature of the current solution can be adjusted, thereby achieving low temperature throughout the operation, improving the surgical effect of the low-temperature plasma electrode. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 It is a schematic diagram of the structure of the function switching device of the present invention;

[0033] Figure 3 It is a schematic structural diagram of the fluid reversing device of the present invention;

[0034] Figure 4 It is a schematic diagram of the error-proof structure of the reversing valve of the present invention;

[0035] Figure 5 It is a schematic diagram of the structure of the telescopic insulating tube of the present invention;

[0036] Figure 6 It is a schematic diagram of the electrode structure of the present invention;

[0037] Figure 7 It is a structural schematic diagram of the electrode expansion and contraction adjustment of the present invention.

[0038] Markings in the figure: 1-handle, 2-telescopic adjustment device, 3-function switching device, 31-electric cutting button, 311-error-proofing boss, 32-electrocoagulation button, 4-fluid reversing device, 41-reversing valve, 42-reversing three-way pipe, 43-reversing joint, 5-suction tube, 6-flushing tube, 7-power cord, 8-connecting sleeve, 9-electrode rod, 91-negative electrode rod, 92-PE insulating tube, 10-electrode head, 101-telescopic insulating tube, 1011-electrode wire tube, 1012-pinhole camera wire tube, 1013-temperature sensor, 1014-flow guide tube, 102-ceramic base, 1021-positive electrode, 1022-pinhole camera, 1023-temperature sensor, 1024-flow guide hole. DETAILED DESCRIPTION

[0039] The following specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, such modifications are protected by the patent law as long as they are within the scope of the claims of the present invention.

[0040] The present invention will be described in detail below with reference to the accompanying drawings by way of embodiments. Example

[0041] according to Figure 1 As shown, a low-temperature plasma electrode capable of accurately focusing energy comprises a handle 1, a telescopic adjustment device 2, a function switching device 3, a fluid reversing device 4, a suction tube 5, a flushing tube 6, a power cord 7, a connecting sleeve 8, an electrode rod 9 and an electrode head 10; the telescopic adjustment device 2 is arranged at the finger gripping part at the front end of the handle 1, the function switching device 3 is arranged above the telescopic adjustment device 2, the fluid reversing device 4 is arranged above the inside of the handle 1, the suction tube 5 and the flushing tube 6 are arranged at the tail of the handle 1 and connected to the fluid reversing device 4, the power cord 7 passes through the tail of the handle 1 and extends out, the connecting sleeve 8 connects the handle 1 with the electrode rod 9, and the electrode head 10 is arranged at the front end of the electrode rod 9;

[0042] according to Figure 2 As shown, the function switching device 3 includes an electric cutting button 31 and an electric coagulation button 32. The electric cutting button 31 and the electric coagulation button 32 are different in color for easy distinction, and a slightly raised anti-error boss 311 is provided on the surface of the electric cutting button 31;

[0043] The electrocuting button 31 and the electrocoagulation button 32 of the function switching device 3 can realize the mutual switching between the electrocuting and electrocoagulation functions during use, making the use process more convenient and quick; by pressing the electrocuting button 31, the current between the positive electrode and the negative electrode forms an electric field, ionizing the physiological saline around the electrodes and exciting it into plasma, which has strong activity and can break the molecular bonds of organic substances, react with cell proteins and nucleic acids, destroy cell membranes and kill cells, thereby achieving the purpose of cutting and decomposing diseased tissues; by pressing the electrocoagulation button 32, ions move back and forth along the direction of magnetic lines of force as the electromagnetic field changes rapidly, and the friction between ions with higher energy generates heat, which can denature the protein of cell tissues and dry the blood, thereby achieving a coagulation effect; the error-proof design of color and boss gives people a visual and tactile impact, which to a large extent ensures that there will be no functional errors during the operation, thereby improving the accuracy of the surgical operation;

[0044] according to Figure 3 , Figure 4 As shown, the fluid reversing device 4 includes a reversing valve 41, a reversing tee 42 and a reversing joint 43. The reversing valve 41 is also provided with an anti-error mark on the outer shell of the handle 1; the reversing tee 42 is connected to the suction tube 5 and the flushing tube 6 at the same time, and is connected to the guide tube 1014 through the reversing joint 43. The reversing valve 41 can adjust the inner passage of the reversing tee 42; the reversing tee 42 can connect the suction tube 5 and the flushing tube 6 to a guide tube 1014;

[0045] This structural design enables a set of devices to simultaneously realize multiple functions, and can better cope with the cleaning of wounds and the discharge of blood or ionized wastewater during surgery, making the circulation of ionized water simpler and more convenient, greatly increasing the practicality of the present invention, and avoiding the need for medical staff to switch surgical instruments back and forth during surgery. At the same time, the design of the anti-error words on the reversing valve 41 allows medical staff to intuitively see the function corresponding to the current position of the reversing valve 41, avoiding the occurrence of errors in use during use;

[0046] according to Figure 5 , Figure 6As shown, the electrode rod 9 includes a negative electrode rod 91 and a PE insulating tube 92, the negative electrode rod 91 is a return electrode and has a hollow structure, and the PE insulating tube 92 is shrink-wrapped on the outer surface of the negative electrode rod 91; the electrode head 10 includes a telescopic insulating tube 101 and a ceramic base 102, the telescopic insulating tube 101 is arranged in the hollow structure inside the negative electrode rod 91, and the front end is connected to the ceramic base 102, and the tail end is connected to the telescopic adjustment device 2; the telescopic insulating tube 101 is provided with an electrode wire tube 1011, a pinhole camera wire tube 1012, a temperature sensor wire tube 1013 and a flow guide tube 1014, and the ceramic base 102 is provided with a positive electrode 1021, a pinhole camera 1022, a temperature sensor 1023 and a flow guide hole 1024;

[0047] The hollow structure of the negative electrode rod 91 can wrap the telescopic insulating tube 101 inside, so that the telescopic insulating tube 101 can move smoothly without interference during the telescopic movement. The negative electrode is a return electrode, which can better transfer energy to the system to make the energy more concentrated, make the electrocuting process more accurate, and also improve the coagulation effect of electrocoagulation. The PE insulating tube 92 is shrunk and wrapped on the outer surface of the negative electrode rod to prevent the user from accidentally touching the negative electrode rod 91 and being injured by the current between the positive and negative electrodes. The pinhole camera 1022 can follow the electrode into the human tissue and project the surgical process on the screen in real time, which can clearly record the entire surgical process, providing convenience for the operation of medical staff and providing great help for subsequent postoperative medical training and teaching. The temperature sensor can monitor the temperature of the wound site in real time throughout the operation to ensure low-temperature operation throughout the operation, improve the low-temperature surgical effect of the low-temperature plasma electrode, and improve the accuracy of the operation.

[0048] according to Figure 7 As shown, by adjusting the telescopic adjustment device 2, the telescopic insulating tube 101 can be driven to perform telescopic movement, and the distance between the telescopic positive electrode 1021 and the negative electrode rod 91 can be adjusted to achieve temperature regulation; by tightening or loosening the telescopic adjustment device 2, the telescopic adjustment device 2 can drive the telescopic insulating tube 101 to perform telescopic movement, thereby adjusting the distance between the positive electrode and the negative electrode to control the range of power output, making the energy more concentrated, and by controlling the power range, the temperature of the ionized solution can be adjusted, thereby achieving low-temperature operation throughout the operation, avoiding accidents of thermal damage to tissues due to high temperature or carbonization of biological tissues, and improving the surgical effect of the low-temperature plasma electrode.

Claims

1. A low-temperature plasma electrode capable of accurately focusing energy, characterized in that: It comprises a handle (1), a telescopic adjustment device (2), a function switching device (3), a fluid reversing device (4), a suction tube (5), a flushing tube (6), a power cord (7), a connecting sleeve (8), an electrode rod (9) and an electrode head (10); The telescopic adjustment device (2) is arranged at the finger gripping portion of the front end of the handle (1); the function switching device (3) is arranged above the telescopic adjustment device (2); the fluid reversing device (4) is arranged above the inside of the handle (1); the suction tube (5) and the flushing tube (6) are arranged at the rear end of the handle (1) and connected to the fluid reversing device (4); the power cord (7) passes through the rear end of the handle (1) and extends outward; the connecting sleeve (8) connects the handle (1) to the electrode rod (9); and the electrode head (10) is arranged at the front end of the electrode rod (9); The function switching device (3) comprises an electric cutting button (31) and an electric coagulation button (32); the electric cutting button (31) and the electric coagulation button (32) are of different colors for easy identification, and a slightly raised anti-error boss (311) is provided on the surface of the electric cutting button (31); The fluid reversing device (4) comprises a reversing valve (41), a reversing three-way pipe (42) and a reversing joint (43); the reversing valve (41) is also provided with error-proofing words on the outer shell of the handle (1); The electrode rod (9) comprises a negative electrode rod (91) and a PE insulating tube (92); the negative electrode rod (91) is a return electrode and has a hollow structure; the PE insulating tube (92) is shrink-wrapped on the outer surface of the negative electrode rod (91); The electrode head (10) comprises a telescopic insulating tube (101) and a ceramic base (102); the telescopic insulating tube (101) is arranged in the hollow structure inside the negative electrode rod (91), with a front end connected to the ceramic base (102) and a rear end connected to the telescopic adjustment device (2); An electrode wire tube (1011), a pinhole camera wire tube (1012), a temperature sensor wire tube (1013) and a flow guide tube (1014) are arranged inside the telescopic insulating tube (101); a positive electrode (1021), a pinhole camera (1022), a temperature sensor (1023) and a flow guide hole (1024) are arranged on the ceramic base (102); By adjusting the telescopic adjustment device (2), the telescopic insulating tube (101) can be driven to perform telescopic movement, thereby driving the adjustment of the distance between the telescopic positive electrode (1021) and the negative electrode rod (91) to achieve temperature regulation; The reversing three-way pipe (42) is connected to the suction pipe (5) and the flushing pipe (6) at the same time, and is connected to the flow guide pipe (1014) via the reversing joint (43). The passage in the reversing three-way pipe (42) can be adjusted by adjusting the reversing valve (41).

2. A low-temperature plasma electrode capable of accurately focusing energy according to claim 1, characterized in that: The handle (1) and the gripping portion of the telescopic adjustment device (2) are both slightly convex streamlined structures.

3. A low-temperature plasma electrode capable of accurately focusing energy according to claim 1, characterized in that: The suction tube (5), the flushing tube (6) and the power cord (7) are all made of different colors for appearance.

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