System for protecting plasma electrode

Abstract

The invention relates to a system for protecting a plasma electrode, comprising a main power supply module for outputting current; the resonance power amplifier module receives the current, modulates the current and outputs the modulated current to the plasma electrode; and a protection module is arranged in the plasma electrode and is used for absorbing peak current supplied to the plasma electrode. The system can perform current and voltage protection actions more effectively and quickly, and the power pulse protection speed caused by electrode hot plug is remarkably improved.

Description

Technical Field

[0001] The invention relates to a system for protecting plasma electrodes, belonging to the technical field of medical devices. Background Art

[0002] Plasma surgical systems are widely used in the clinical medical field because of their advantages over traditional surgical instruments, and plasma surgical electrodes are an indispensable accessory. As the classification of clinical departments and operating rooms gradually refines, the requirements for the compatibility between equipment and electrodes are getting higher and higher. Ensuring that equipment and electrodes are compatible has become a key point. In addition, since the use of electrode accessories involves hot-swap operations during clinical procedures, how to ensure that the electrodes have a good service life during hot-swap operations has become an important difficulty.

[0003] Plasma electrodes and equipment generally have three main forms: one without any identification, one through a relatively simple identification method (such as resistance), and one through communication identification through single-chip data interaction. Electrodes without identification or with simple identification methods have the following three related problems in clinical use. There are the following related problems. 1. There is no limit on the use time and number of times of the electrode. In actual use, if the use time exceeds the design use time of the product, it is very likely that the electrode will be damaged or the performance will be reduced, which will affect the surgical effect and surgical safety; if it is reused many times, there is a probability of infection, affecting patient health and surgical safety. 2. The electrode parameters cannot be limited during use. In actual use, the same host will adapt to several different electrodes, and the limit parameters between different electrodes are not the same. For example, the recommended power of our plasma ECO-800F101 electrode during clinical use is 80W, and the upper limit power is 150W; the recommended power of the ECO-800F105 electrode during clinical use is 180W. Both electrodes are used on the same device (the rated power of the device is 250W), so during use, it is possible that the ECO-800F101 electrode uses more than 150W of power. At this time, the life and effect of the electrode will be significantly reduced. 3. Without any identification, the device may use electrodes that are not designed to match. At this time, there is a risk of damage to the electrode or device, as well as incompatibility, which affects clinical effects and safety.

[0004] The form of communication and identification through microcontroller data interaction can match the data between the host and the accessories, thereby limiting the use time, number of times, power and other information of the electrode, thereby solving the above-mentioned clinical problems. However, in actual use, hot plugging of electrodes is prone to occur, which is very likely to cause damage to the microcontroller inside the electrode or abnormal operation, affecting the effectiveness and correctness of electrode identification, and thus affecting the surgical effect and safety.

[0005] The present invention discloses a power protection module for a plasma surgery electrode encryption circuit, which can be used to protect an internal power supply circuit of an electrode, thereby preventing damage to a single chip microcomputer inside the electrode caused by hot plugging of the electrode, thereby ensuring the effectiveness and correctness of an electrode identification function. Summary of the invention

[0006] The technical problem to be solved by the present invention is: to protect the hot-plug operation of accessories in clinical use, thereby increasing the number of hot-plug usage of accessories, and propose a power protection module for a plasma surgical electrode encryption circuit.

[0007] In order to solve the above technical problems, the present invention proposes a technical solution, which is a system for protecting plasma electrodes, comprising: Main power module, used to output current; A resonant power amplifier module receives the current and outputs it to the plasma electrode after modulation; A protection module is provided in the plasma electrode to receive the modulated current; The protection module absorbs the modulated peak current supplied to the plasma electrode.

[0008] In order to solve the above technical problems, the second technical solution proposed by the present invention is a system for protecting plasma electrodes, comprising: Main power module, used to output current; A resonant power amplifier module receives the current and outputs it to the plasma electrode after modulation; A protection module is provided in the plasma electrode to receive the modulated current; When the modulated current exceeds a set threshold, the control module cuts off the current supplied to the plasma electrode.

[0009] Furthermore, the protection module is a self-recovery fuse that quickly shuts down the circuit for protection when the modulated current exceeds a set threshold.

[0010] Furthermore, the protection module also includes a voltage protection module for circuit voltage clamping protection. The voltage protection module is a switching diode and a voltage regulator diode connected in series, which quickly clamps and discharges the voltage when the circuit voltage exceeds a set threshold.

[0011] Furthermore, it also includes an electrode encryption module for interactive communication with the control module.

[0012] Furthermore, the electrode encryption module is used to input information such as time, number of times, power, etc. of the adapted electrodes, and to interact and communicate with the control module.

[0013] Beneficial effects: Compared with the traditional transient suppression diode protection method, the plasma surgical electrode identification power protection system brought by the present invention can perform current and voltage protection actions more effectively and quickly, and significantly improves the power pulse protection speed caused by electrode hot plugging. The present invention uses a relatively simple circuit structure, does not bring unacceptable risks, and is easy to promote and apply. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below in conjunction with the accompanying drawings.

[0015] Figure 1 This is a block diagram of the plasma surgery system.

[0016] Figure 2 This is a block diagram of the power protection module of the electrode encryption circuit of the present invention.

[0017] Figure 3 This is a circuit diagram of a power protection module of the electrode encryption circuit of the present invention.

[0018] Figure 4 The electrode encryption circuit of the present invention captures the waveform on the power port when the power is plugged in and out.

[0019] Figure 5 This is a circuit diagram of the communication module of the present invention. DETAILED DESCRIPTION

[0020] Embodiment 1 In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings and specific implementation methods.

[0021] The present invention proposes a Figure 1 The system for protecting plasma electrodes shown in the figure includes a main power module having one end connected to the main power input and the other end used to output current; a resonant power amplifier module, which receives the current output by the main power module and outputs it to the plasma electrode after modulation; and a protection module absorbs the modulated peak current supplied to the plasma electrode.

[0022] The current in this embodiment is direct current, and the resonant power amplifier module modulates the direct current into a resonant pulse current with a predetermined pulse width, and outputs the predetermined resonant pulse current to the plasma electrode; The system of the present invention also includes a control module for controlling the output enable and amplitude of the main power module. Controlling the output enable and waveform of the resonant power amplifier module. Interacting and communicating with the plasma electrode encryption module. Figure 5 As shown, confirm the connected electrode information and control the display module to display the corresponding power.

[0023] The system of the present invention also includes a display module, which is used for human-computer interaction and converts the data information of the display interface and transmits it to the control module; The plasma electrode encryption module of the present invention is used to input information such as the time, number of times, and power of the adapted electrode, and interact with the host control module to confirm whether the electrode matches the device.

[0024] like Figure 2 As shown, the present invention optimizes the plasma electrode encryption module, adds a single chip microcomputer for interactive communication information and a power protection module for protecting the normal operation of the single chip microcomputer.

[0025] like Figure 3 As shown in the figure, the schematic diagram of the power protection module of the plasma electrode encryption circuit of the present invention, the current protection module is composed of a self-recovery fuse F1, and the voltage protection module is composed of D1, D2, and C1, wherein the switch diode D1 is connected in series with the voltage regulator diode D2 and then connected in parallel with the chip ceramic capacitor C1. The forward tube voltage drop of the diode D1 is 0.7V, and the reverse working voltage of the voltage regulator diode D2 is 4.3V. When the input voltage is higher than 5V, the clamping protection action will be performed, and energy will be discharged through D2, and C1 will achieve filtering and decoupling.

[0026] like Figure 4 As shown, in an unprotected circuit, the waveform on the power port is captured when the power is plugged in and out. Through the technical solution of the above embodiment 1, the peak energy of the power port can be absorbed, and the damage to the internal microcontroller of the electrode caused by the hot plugging operation of the electrode can be further avoided, thereby ensuring the effectiveness and correctness of the electrode identification function.

[0027] The following is a data comparison record of multiple live plug-in verifications of unprotected circuits and protected circuits: Verification Status Number of plugging and unplugging with power on Encrypt the final state of the electrode after verification No protection circuit 30+ After 30+ times of plugging and unplugging, the encrypted electrode cannot be recognized. With protection circuit 1000 After 1000 times of live plugging and unplugging, the encrypted electrodes can be recognized normally. Embodiment 2 The second embodiment of the present invention is a further improvement on the first embodiment, and the same parts are not repeated here.

[0028] Embodiment 2 The present invention proposes a Figure 1 The system for protecting plasma electrodes shown includes a main power module for outputting current; a resonant power amplifier module for receiving the current modulated by the resonant power amplifier module and outputting it to the plasma electrode; a protection module is provided in the plasma electrode for receiving the current modulated by the resonant power amplifier module; When the current modulated by the resonant power amplifier module exceeds a set threshold, the control module cuts off the current supplied to the plasma electrode.

[0029] like Figure 1 , Figure 2 and Figure 3As shown, a protection module is provided in the plasma electrode for quickly cutting off the current supplied to the plasma electrode. The protection module in the present invention is a current protection module, which is a self-recovery insurance. When the current of the plasma electrode encryption module power supply circuit exceeds the set threshold, the circuit is quickly shut down for protection. In this embodiment, the protection current of F1 is 50mA. When it is higher than 50mA, the shutdown protection action will be performed, and the larger the current, the faster the action.

[0030] This embodiment is not limited to the specific technical solutions described in the above embodiments. In addition to the above embodiments, the present invention may also have other implementation modes. For those skilled in the art, any technical solutions formed by any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A system for protecting a plasma electrode, characterized in that: include Main power module, used to output current; A resonant power amplifier module receives the current and outputs it to the plasma electrode after modulation; A protection module is provided in the plasma electrode to receive the modulated current; The protection module absorbs the modulated peak current supplied to the plasma electrode.

2. A system for protecting a plasma electrode, characterized in that: include Main power module, used to output current; A resonant power amplifier module receives the current and outputs it to the plasma electrode after modulation; A protection module is provided in the plasma electrode to receive the modulated current; When the modulated current exceeds a set threshold, the control module cuts off the current supplied to the plasma electrode.

3. The system for protecting plasma electrodes according to claim 1 or 2, characterized in that: The protection module is a self-recovery fuse that quickly shuts down the circuit for protection when the modulated current exceeds a set threshold.

4. The system for protecting plasma electrodes according to claim 1 or 2, characterized in that: The protection module also includes a voltage protection module for circuit voltage clamping protection. The voltage protection module is a switch diode and a voltage regulator diode connected in series, which quickly clamps and discharges the voltage when the circuit voltage exceeds a set threshold.

5. The system for protecting plasma electrodes according to claim 1 or 2, characterized in that: It also includes an electrode encryption module for interactive communication with the control module.

6. The system for protecting plasma electrodes according to claim 1 or 2, characterized in that: The electrode encryption module is used to input information such as time, number of times, power, etc. of the adapted electrodes, and to interact and communicate with the control module.

Images