Plasma radio frequency operation electrode

Abstract

The utility model discloses a plasma radio frequency operation electrode which comprises an electrode rod assembly, a handle assembly, a connecting cable and a suction waterway pipeline, the left side of the handle assembly and the right end of the electrode rod assembly are installed in a butt joint mode, and the left end of the connecting cable and the right end of the handle assembly are installed in a butt joint mode. And one end of the suction waterway pipeline is in butt joint with the right end of the handle assembly. The temperature sensor is arranged in the suction pipeline or extends to the working head end of the electrode, and a temperature signal is transmitted to the host controller through the connecting cable, so that the temperature of a conductive solution in a working center can be monitored in real time, and the temperature condition of surrounding tissues in real-time working can be intuitively reflected. The supplementing and discharging speed of the conductive solution can be adjusted according to the temperature feedback condition, and the more accurate and safer cutting and blood coagulation effects are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field, concretely is a kind of plasma radiofrequency surgical electrode. BACKGROUND

[0002] Plasma radiofrequency surgical system is using plasma knife gasification technology also called plasma low-temperature ablation to carry out cutting, blood coagulation etc. It forms plasma thin layer at lower temperature (usually at 40 ℃-70 ℃) by radio frequency energy (about 100KHz), attracts a large number of ions around electrode head, these plasma particles produce movement under the energy provided by plasma head end, obtain enough energy to impact and break the molecular chain between tissue cells and form element molecule and low molecular gas, to achieve precise cutting effect, in clinical application, arthroscopy surgery, ear-nose-throat, intervertebral foramen etc. are more and more.

[0003] Plasma surgery needs to work in conductive solution (such as normal saline) environment, and conductive solution forms a thin layer between working electrode and return electrode. When energy supply is sufficient, conductive solution is converted into steam layer containing charged particles, and when high-energy load particles connect with tissue, tissue is decomposed by molecular dissociation.

[0004] Traditional plasma radiofrequency surgical electrode cannot monitor the temperature around plasma electrode in real time. Since plasma electrode head end continuously releases energy, part of energy is converted into heat energy, so that the temperature of surrounding tissue and conductive solution (such as normal saline) continuously rises, which may cause damage to human tissue in serious cases. In general, conductive solution is removed and supplemented during work, which can prevent the temperature of surgical site from being too high. However, the temperature around the affected tissue is not detected during this process, and high temperature not only affects the surgical effect, but also may cause harm to the patient, prolong the operation and recovery time of the patient, increase the operation burden of the user, and increase the additional pain of the patient.

[0005] Therefore, we propose a plasma radiofrequency surgical electrode structure to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a kind of plasma radiofrequency surgical electrode to solve the problems raised in the above background.

[0007] To achieve the above object, the utility model provides the following technical scheme:

[0008] A kind of plasma radiofrequency surgical electrode, including electrode stem assembly, handle assembly, connecting cable and suction waterway pipeline, the left side of handle assembly is butt-jointed with the right end of electrode stem assembly, the left end of connecting cable is butt-jointed with the right end of handle assembly, one end of suction waterway pipeline is butt-jointed with the right end of handle assembly.

[0009] Preferably, a working electrode is mounted on the left side of the top of the electrode rod assembly, and a return electrode is mounted on the left side of the bottom of the electrode rod assembly.

[0010] Preferably, an isolation layer is sleeved on the outer ring of the left end of the electrode rod assembly, an insulation protective layer is arranged on the outer wall of the electrode rod assembly, and a water channel is arranged in the middle of the electrode rod assembly.

[0011] Preferably, the working electrode and the return electrode are both metal electrode structures with good electrical properties and high-temperature resistance, and a plasma layer is formed between the working electrode and the return electrode.

[0012] Preferably, one end of the connecting cable near the handle assembly penetrates the handle assembly and extends to the inner cavity of the electrode rod assembly, and the left end of the connecting cable is electrically connected with the working electrode and the return electrode.

[0013] Preferably, the temperature sensor is arranged in the inner cavity of the handle assembly.

[0014] Preferably, the temperature sensor is arranged directly below the outlet of the water channel.

[0015] Preferably, one end of the suction water pipeline is connected with the water channel, and the other end of the suction water pipeline is connected with a negative pressure suction device.

[0016] Compared with the prior art, the etc.

[0017] 1. The plasma radio frequency surgical electrode, by placing the temperature sensor in the suction pipeline or extending to the working head end of the electrode, and transmitting the temperature signal to the host controller through the connecting cable, can monitor the temperature of the conductive solution in the working center in real time, and can intuitively reflect the temperature of the surrounding tissue in real time. According to the temperature feedback, the speed of the conductive solution supplement and discharge can be adjusted to realize more accurate and safe cutting and coagulation effect.

[0018] 2. The plasma radio frequency surgical electrode, by placing the temperature sensor in the suction pipeline inside the handle away from the working head end, can avoid the interference of high-frequency current to the temperature signal, and can continuously output energy and continuously collect temperature signals. In order to avoid the interference of high-frequency current to the temperature signal, the traditional method needs to shut down the energy output, and the temperature is collected in the gap of the shutdown. Compared with the traditional method, the surgical efficiency is higher.

[0019] 3、The radio frequency surgical electrode, the temperature sensor is built-in in the handle interior, the size requirement of the temperature sensor is not high. The temperature sensor is pasted on the working end in the traditional mode, in order to not influence the size of the working end of the electrode, requires that the size of the temperature sensor is as small as possible, therefore the cost is higher. Compared with the traditional mode, the appearance and size of the working end of the electrode are not influenced, and the cost is lower. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the structure schematic diagram of the utility model;

[0021] Figure 2 It is the structure schematic diagram of the utility model electrode stem subassembly;

[0022] Figure 3 It is the position structure sectional view of the utility model handle subassembly.

[0023] In the drawing: 1, electrode stem subassembly;2, handle subassembly;3, connecting cable;4, suction waterway pipeline;5, working electrode;6, return electrode;7, isolation layer;8, insulation protective layer;9, waterway passage;10, temperature sensor. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the utility model.

[0025] The utility model provides a kind of plasma radio frequency surgical electrode technical scheme:

[0026] Embodiment:

[0027] As Figure 1 Indicated, the radio frequency surgical electrode of this technical scheme mainly includes electrode stem subassembly 1, handle subassembly 2, connecting cable 3 and suction waterway pipeline 4, the left side of handle subassembly 2 is installed with the right end of electrode stem subassembly 1, the left end of connecting cable 3 is installed with the right end of handle subassembly 2, one end of suction waterway pipeline 4 is installed with the right end of handle subassembly 2. Handle subassembly 2 of this technical scheme can be controlled with button or not with button.

[0028] As Figure 2 Indicated, working electrode 5 is installed on the left side of the top of electrode stem subassembly 1, and return electrode 6 is installed on the left side of the bottom of electrode stem subassembly 1.

[0029] As Figure 2As shown, the outer ring of the left end of the electrode rod assembly 1 is sleeved with an isolation layer 7, the outer wall of the electrode rod assembly 1 is provided with an insulation protective layer 8, and the middle part of the electrode rod assembly 1 is provided with a water channel 9. The water channel 9 is generally located in the middle of the electrode rod assembly, and its main function is to suck the conductive solution in the center of the working area.

[0030] Wherein, the working electrode 5 and the return electrode 6 are both metal electrode structures with good electrical properties and high temperature resistance, and a plasma layer is formed between the working electrode 5 and the return electrode 6. When the technical solution is actually used for surgery, the surrounding tissues to be operated can be cut or coagulated.

[0031] Wherein, as shown in the figure, Figure 3 As shown, the end of the connecting cable 3 close to the handle assembly 2 penetrates the handle assembly 2 and extends to the inner cavity of the electrode rod assembly 1, and the left end of the connecting cable 3 is electrically connected with the working electrode 5 and the return electrode 6.

[0032] Wherein, as shown in the figure, Figure 3 As shown, the part of the connecting cable 3 in the inner cavity of the handle assembly 2 is installed with a temperature sensor 10, and a temperature measuring device is installed at the end position of the temperature sensor 10. The temperature measuring device is a temperature measuring thermocouple. The temperature sensor 10 can also be extended to the electrode head position by the water channel 9.

[0033] Wherein, as shown in the figure, Figure 3 As shown, the temperature sensor 10 is located directly below the outlet of the water channel 9.

[0034] Wherein, one end of the suction water pipeline 4 is installed in the water channel 9, and the other end of the suction water pipeline 4 is externally connected with a negative pressure suction device. The suction pipeline will suck the conductive solution out of the action site by the negative pressure provided by the externally connected negative pressure suction device.

[0035] In this embodiment, the plasma layer formed between the working electrode 5 and the return electrode 6 in the electrode rod assembly 1 is used for cutting or coagulation, and the water channel 9 located in the electrode rod assembly 2 will suck the conductive solution in the working center, the conductive solution will flow into the suction water pipeline 4 through the water channel 9, and the temperature sensor 10 located at the connection between the two will flow through the conductive solution, and the real-time conductive solution temperature will be displayed on the host controller. If the temperature exceeds the set value, the operator will be prompted by sound and animation warning.

[0036] In the description of the utility model, still need to explain, unless another explicit provision and limitation, term " set ", " install ", " link ", " connect " should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication。For ordinary skilled person in the art, can understand the specific meaning of the above-mentioned terms in the utility model according to specific circumstances.

[0037] Although the embodiments of the utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made thereto without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A radiofrequency surgical electrode of the type comprising an electrode shaft assembly (1), a handle assembly (2), a connecting cable (3) and an aspiration water circuit (4), characterized in that: The left side of the handle assembly (2) is connected with the right end of the electrode rod assembly (1), the left end of the connecting cable (3) is connected with the right end of the handle assembly (2), and one end of the suction water channel pipeline (4) is connected with the right end of the handle assembly (2). The temperature sensor (10) is arranged on the part of the connecting cable (3) in the inner cavity of the handle assembly (2), and the temperature sensor (10) is a temperature measuring thermocouple.

2. A radio frequency surgical electrode according to claim 1 wherein: The working electrode (5) is arranged on the left side of the top of the electrode rod assembly (1), and the return electrode (6) is arranged on the left side of the bottom of the electrode rod assembly (1).

3. A radio frequency surgical electrode according to Claim 1 wherein: The isolation layer (7) is sleeved on the outer ring of the left end of the electrode rod assembly (1), the insulating protective layer (8) is arranged on the outer wall of the electrode rod assembly (1), and the water channel (9) is arranged in the middle of the electrode rod assembly (1).

4. A radio frequency surgical electrode according to Claim 2 wherein: The working electrode (5) and the return electrode (6) are metal electrode structures with good electrical properties and high temperature resistance, and the working electrode (5) and the return electrode (6) form a plasma layer.

5. A radio frequency surgical electrode according to Claim 4 wherein: The connecting cable (3) penetrates the handle assembly (2) and extends to the inner cavity of the electrode rod assembly (1) near one end of the handle assembly (2), and the left end of the connecting cable (3) is electrically connected with the working electrode (5) and the return electrode (6).

6. A radio frequency surgical electrode according to Claim 5 wherein: The temperature sensor (10) is arranged below the outlet of the water channel (9).

7. A radio frequency surgical electrode according to Claim 6 wherein: One end of the suction water channel pipeline (4) is connected with the water channel (9), and the other end of the suction water channel pipeline (4) is connected with the negative pressure suction device.

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