Low-temperature plasma operation system with stimulation function

Abstract

The utility model discloses a low-temperature plasma operation system with a stimulation function. The system is composed of a power module, a touch display module, a foot switch, a controlled power supply, a single-chip microcomputer controller, a polar plate and electrode foot switch detection unit, a stimulation unit, a liquid control module, a push-pull output module, an IV detection module, an output unit, an electrode and the like. The utility model aims at improving the protection on nerves in an operation and further enhancing the safety and accuracy of the operation. According to the system, the stimulation unit is additionally arranged, the distance between an electrode and a nerve is positioned in real time through a pulse stimulation signal, and therefore damage to the nerve in the operation process is effectively avoided; real-time feedback of voltage and current is realized through the detection module, and the safety guarantee of output is enhanced. The system effectively combines the modern electronic technology and clinical requirements, has a wide application prospect, is particularly suitable for minimally invasive surgery related to nerves, and not only reduces the surgical risk, but also remarkably improves the postoperative recovery quality of a patient.

Description

Technical Field

[0001] The utility model belongs to the field of plasma surgical systems, and particularly relates to a cryogenic plasma surgical system with a stimulation function. Background Art

[0002] The plasma surgical system belongs to a high-frequency surgical device with a special usage mode. The main unit generates a pulsed output energy of 100KHz / 400kHz, discharges through the working end of the electrode, forms a local electric field with the tissue to be cut, and stimulates the electrolyte (normal saline) to form a plasma thin layer with a thickness of about 100μm around the electrode. The plasma thin layer is composed of a large number of charged particles, generates sufficient energy to break the molecular bonds of the target tissue cells, and quickly decomposes the tissue into low-molecular-weight molecules and atoms, thereby forming efficient ablation, vaporization, cutting, coagulation, and shrinking effects at a lower temperature.

[0003] The existing cryogenic plasma surgical system is composed of a main unit, a surgical electrode, a foot switch, a fluid on-off device, and their connecting wires. Its application part is the plasma surgical electrode.

[0004] Currently, the functions of cryogenic plasma surgical equipment are cutting, ablation, and coagulation. During the clinical process, doctors perform surgical operations by setting parameters such as time and output energy levels. The positioning of the target point is achieved through CT images, but the distance between the target point and the nerve cannot be accurately identified. In this way, it is easy to damage the nerve during the operation. Summary of the Utility Model

[0005] In order to solve the technical problem in the background art that the existing technology does not have the function of positioning the nerve and is easy to cause damage to the nerve, the purpose of the utility model is to provide a cryogenic plasma surgical system with a stimulation function, so that the cryogenic plasma surgical system has a stimulation function, adopts the method of pulsed stimulation to determine the distance between the surgical electrode and the nerve, and adjusts the position of the electrode or controls the ablation power according to the distance, so as to avoid damaging the nerve during the operation and improve the safety of the operation.

[0006] In order to solve the technical problem, the technical solution of the utility model is:

[0007] A cryogenic plasma surgical system with a stimulation function, the system includes: a controlled power supply AC-DC, a push-pull output DC-AC unit, an output unit, an electrode, an IV detection unit, a plate and an electrode foot switch detection unit, a foot switch, and a stimulation unit;

[0008] The controlled power supply AC-DC is electrically connected to the push-pull output DC-AC unit. The push-pull output DC-AC unit outputs the electrical energy signal to the electrode and the IV detection unit through the output unit. The IV detection unit is electrically connected to the single-chip microcomputer controller. The electrode, the single-chip microcomputer controller, and the foot switch are all signal-connected to the plate and electrode foot switch detection unit; the single-chip microcomputer controller is signal-connected to the stimulation unit. The stimulation unit outputs the electrical energy signal to the electrode through the output unit, and the plasma formed by the electrode acts on the tissue.

[0009] Further, the system further includes a power supply AC module, and the power supply AC module provides a DC voltage and supplies power to the controlled power supply AC-DC module.

[0010] Further, the system further includes a touch display module, and the touch display module provides a human-computer interaction interface and interacts with the single-chip microcomputer controller.

[0011] Further, the plate and electrode foot switch detection units are all signal-connected to the foot switch, the electrode, and the single-chip microcomputer controller.

[0012] Further, a liquid control unit is further included. The liquid control unit is signal-connected to the single-chip microcomputer controller and responds to the control of the single-chip microcomputer controller.

[0013] Further, the stimulation unit includes: a voltage stimulation sub-unit, a current stimulation sub-unit, and a stimulation interface sub-unit;

[0014] The stimulation interface sub-unit converts the DIN2 digital signal output by the single-chip microcomputer controller into analog signals DAV voltage stimulation and DA1 current stimulation for output; the stimulation interface sub-unit is composed of u1 and u2. u1 is an ADC conversion circuit that converts the input digital DIN2 into analog signals and outputs them from DAV and DA1. U2 is a reference voltage that provides a reference voltage for the conversion of u1.

[0015] Further, for the voltage stimulation sub-unit, the analog voltage DAV output by u1 is amplified by u3, buffered and isolated by u4, loaded onto the optoelectronic relay, and output to the electrode.

[0016] Further, for the current stimulation sub-unit, a constant current source is formed by U5, U6, Q4, and Q6, and the output current is DA1 / R24, which is composed of an operational amplifier and a triode.

[0017] Compared with the prior art, the advantages of the present utility model are as follows:

[0018] Stimulation positioning, improving the accuracy and safety of the operation:

[0019] The stimulation function of the present utility model realizes the precise positioning of the electrode and the target nerve through pulse signals, ensuring that doctors can accurately control the energy output during the operation, thereby minimizing the damage to surrounding tissues to the greatest extent and significantly improving the success rate and safety of the operation.

[0020] Dual overcurrent and overvoltage protection modes improve the safety of clinical use:

[0021] The system is equipped with overcurrent and overvoltage protection mechanisms. When abnormal situations are detected, the system will automatically cut off the power supply or adjust the output to prevent equipment damage and potential harm to patients. This dual protection greatly enhances the safety of the system in clinical use.

[0022] Impedance detection and control to optimize energy output:

[0023] The impedance detection technology integrated in the present utility model can real-time monitor the contact impedance between the electrode and the tissue, and judge the tissue type according to the impedance value. This information enables the system to automatically adjust the energy output, ensuring that the output power adapts to different tissue characteristics, and further improving the safety and effectiveness of the operation.

[0024] Touch screen operation mode to improve the reliability and response speed of operation:

[0025] The use of a touch screen interface instead of traditional mechanical buttons avoids the problems of wear and poor contact caused by frequent use of mechanical components. Touch screen operation not only improves the response speed of the interface, but also optimizes the user experience, enabling doctors to set and adjust parameters more agilely, and ensuring the efficiency and reliability of operation in a high-pressure surgical environment.

[0026] In summary, through the application of a number of innovative technologies, the present utility model significantly improves the performance and safety of the low-temperature plasma surgical system, providing a more reliable and efficient solution for clinical operations. Brief Description of the Drawings

[0027] Figure 1 System block diagram of a low-temperature plasma surgical system with a stimulation function of the present utility model;

[0028] Figure 2 Voltage stimulation circuit;

[0029] Figure 3 Current stimulation circuit;

[0030] Figure 4 Stimulation interface circuit. Detailed Description of the Preferred Embodiment

[0031] The following describes the specific implementation manners of the present utility model in conjunction with the embodiments:

[0032] It should be noted that the structures, ratios, sizes, etc. shown in this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the present utility model. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model.

[0033] At the same time, the terms such as "up", "down", "left", "right", "middle", and "one" cited in this specification are only for the convenience of clear narration and are not used to limit the scope of implementation of the present utility model. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope of implementation of the present utility model.

[0034] Embodiment 1:

[0035] A cryogenic plasma surgical system with a stimulation function, the system includes: a controlled power supply AC-DC, a push-pull output DC-AC unit, an output unit, an electrode, an IV detection unit, a plate, an electrode foot pedal switch detection unit, a foot switch, and a stimulation unit;

[0036] The controlled power supply AC-DC obtains setting instructions and real-time impedance data from the single-chip microcomputer controller, outputs a stable voltage to the push-pull output DC-AC unit, the push-pull output DC-AC unit amplifies the power and outputs the electrical energy signal to the electrode and the IV detection unit through the output unit, the IV detection unit inputs the real-time voltage and current data into the single-chip microcomputer controller, and the electrode, the single-chip microcomputer controller, and the foot switch are all signal-connected to the plate and the electrode foot pedal switch detection unit; the single-chip microcomputer controller outputs stimulation parameters and electrode positions to the stimulation unit, the stimulation unit outputs an electrical energy signal to the electrode through the output unit, and the plasma formed by the electrode acts on the tissue.

[0037] Further, the system further includes a power supply AC module, and the power supply AC module provides a DC voltage to supply power to the controlled power supply AC-DC module.

[0038] Further, the system further includes a touch display module, and the touch display module provides a human-computer interaction interface to interact with the single-chip microcomputer controller, including user selection functions, parameter settings, and start / stop operations.

[0039] Further, the plate and electrode foot pedal switch detection unit obtains the connection status of the foot switch and the electrode, monitors the detachment of the electrode and the foot switch, and feeds back the status signal to the single-chip microcomputer controller to start an alarm and stop the output.

[0040] Further, it further includes a liquid control unit, which responds to the control of the single-chip microcomputer controller and adjusts the output flow rate of normal saline.

[0041] Further, the single-chip microcomputer controller inputs stimulation parameters and electrode positions to the stimulation unit. The stimulation unit generates corresponding pulse stimulation signals according to the inputs, controls the frequency and intensity of the stimulation to achieve nerve localization, and outputs the stimulation pulse signals to the electrodes.

[0042] Further, the IV detection unit inputs real-time voltage and current data, detects changes in tissue impedance in real time by monitoring voltage and current changes during the operation of the system and performs protection control, and outputs data to the single-chip microcomputer controller to achieve overvoltage and overcurrent protection. At the same time, it provides a feedback signal to the controlled power supply AC-DC to adjust the output.

[0043] Further, the stimulation unit includes: a voltage stimulation subunit, a current stimulation subunit, and a stimulation interface subunit; it is used to generate accurate and stable voltage and current stimulation signals to meet various requirements during the operation;

[0044] The stimulation interface subunit is used to convert the DIN2 digital signal output by the single-chip microcomputer controller into analog signals DAV voltage stimulation and DA1 current stimulation for output; the stimulation interface subunit is composed of u1 and u2. u1 is an ADC conversion circuit that converts the input digital DIN2 into analog signals and outputs them from DAV and DA1. U2 is a reference voltage that provides a reference voltage for the conversion of u1.

[0045] Further, the voltage stimulation subunit amplifies the analog voltage DAV output by u1 through u3, buffers and isolates it through u4 and loads it onto the optoelectronic relay, and then outputs it to the electrode.

[0046] Further, the current stimulation subunit is composed of U5, U6, Q4, and Q6 to form a constant current source, and outputs a current DA1 / R24. It is composed of an operational amplifier and a triode, and has the ability to expand the current output.

[0047] Embodiment 2:

[0048] Figure 1 This is a system block diagram of a low-temperature plasma surgical system with a stimulation function according to the present invention; the functions of its various parts are as follows:

[0049] Power supply: Provides the DC voltage required for the circuit to work.

[0050] Touch display: The touch screen provides a human-machine interaction interface. On the interaction interface, the user can complete function selection, start / stop operations, and parameter settings (time, working gear). Completing operations on the touch screen avoids the wear caused by long-term use of mechanical buttons (reduces contact reliability) and improves the reliability and response speed of operations. The impedance magnitude of the tissue can also be observed on the touch screen.

[0051] Foot switch: Controls cutting, ablation, and coagulation output.

[0052] Controlled power supply: Adjusts the energy output controlled by voltage according to the set working gear and impedance changes during operation.

[0053] Single-chip microcomputer controller: Controls the operation of the entire system and information processing.

[0054] Plate and electrode foot switch detection: Detects the detachment of electrodes and foot switches. Once detached, the device generates an alarm and stops output, improving the safety of use.

[0055] Stimulation unit: Generates stimulation pulse signals for pre-treatment positioning to avoid nerve damage during treatment and improve the safety of treatment.

[0056] Liquid control: Controls normal saline during treatment.

[0057] Push-pull output: Power output circuit.

[0058] IV detection: Detects voltage and current during operation. One is to achieve overvoltage and overcurrent protection; the other is to measure tissue impedance and adjust the output energy according to impedance changes.

[0059] Output unit: Switches the device output to the electrode.

[0060] Electrode: Converts the electrical energy output by the device into electric field energy, stimulates the electrolyte, generates plasma, and realizes the functions of tissue cutting, ablation, and coagulation; at the same time, before treatment, the stimulation signal stimulates the nerve through the electrode for positioning.

[0061] Figure 2 It is a voltage stimulation circuit that amplifies the analog voltage DAV output by u1 through u3, buffers and isolates it through u4 and loads it onto the optoelectronic relay, and then outputs it to the electrode.

[0062] Figure 3 It is a current stimulation circuit. A constant current source is formed by U5, U6, Q4, and Q6, and the output current is DA1 / R24. This structure composed of operational amplifiers and triodes has the ability to expand the current output.

[0063] Figure 4It is a stimulation interface circuit, which is used to convert the digital signal (DIN2) output by the computer into analog signals DAV (voltage stimulation) and DA1 (current stimulation) for output. It consists of u1 and u2. U1 is an ADC conversion circuit that converts the input digital DIN2 into an analog signal and outputs it from DAV and DA1. U2 is a reference voltage that provides a reference voltage for the conversion of u1.

[0064] The voltage stimulation circuit, current stimulation circuit, and stimulation interface circuit are the specific expansion parts of the "stimulation unit" module. They each perform different functions to ensure that the generation and processing of stimulation signals can be executed accurately and efficiently. The following is a specific description of these three circuits:

[0065] Voltage Stimulation Circuit

[0066] Function: This circuit is mainly used to generate and amplify stimulation signals, and realizes the modulation and amplification of the input voltage through an operational amplifier.

[0067] Process:

[0068] Input: Stimulation voltage instructions from the single-chip microcomputer controller or other signal sources.

[0069] Operation: The operational amplifier processes the signal and amplifies the weak input signal to the required voltage level.

[0070] Output: The voltage stimulation signal after modulation and amplification, ready to be transmitted to the electrode.

[0071] Current Stimulation Circuit

[0072] Function: This circuit is responsible for ensuring that the output current is a stable constant current source to meet the stimulation requirements during surgery.

[0073] Process:

[0074] Input: Control instructions obtained from the single-chip microcomputer to set the magnitude of the target output current.

[0075] [[ID=३६]]Operation: Use constant current source technology to control the current flowing through the load through electronic components (such as operational amplifiers and current detection resistors) to keep it at the set value.

[0076] Output: A stable current signal for use by the electrode to ensure the effect of cutting or ablation.

[0077] Stimulation Interface Circuit

[0078] Function: The stimulation interface circuit converts digital signals into analog signals, thus generating a signal form suitable for electrode stimulation.

[0079] Process: [[ID=5०]]

[0080] Input: A digital signal (such as DIN2) from the control unit represents a stimulation request.

[0081] Operation: The circuit generally includes a digital-to-analog converter (DAC) and an operational amplifier, which are responsible for converting the digital signal into an accurate analog signal and performing necessary amplification processing.

[0082] Output: The converted analog stimulation signal provides stimulation for the electrode.

[0083] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the knowledge of those of ordinary skill in the art, various changes can be made without departing from the spirit of the present invention.

[0084] Many other changes and modifications can be made without departing from the concept and scope of the present invention. It should be understood that the present invention is not limited to specific embodiments, and the scope of the present invention is defined by the appended claims.

Claims

1. A cryogenic plasma surgical system with a stimulation function, characterized in that, The system includes: a controlled power supply AC-DC, a push-pull output DC-AC unit, an output unit, electrodes, an IV detection unit, electrode plates, and an electrode foot pedal switch detection unit, a foot switch, and a stimulation unit; The controlled power supply AC-DC is electrically connected to the push-pull output DC-AC unit. The push-pull output DC-AC unit outputs electrical energy signals to the electrodes and the IV detection unit via the output unit. The IV detection unit is electrically connected to the microcontroller. The electrodes, the microcontroller, and the foot switch are all signal-connected to the electrode plate and electrode foot pedal switch detection unit. The microcontroller is signal-connected to the stimulation unit, and the stimulation unit outputs electrical energy signals to the electrodes through the output unit.

2. The cryogenic plasma surgical system with a stimulation function according to claim 1, wherein, The system further includes a power supply AC module, and the power supply AC module provides a DC voltage and supplies power to the controlled power supply AC-DC module.

3. The cryogenic plasma surgical system with a stimulation function according to claim 1, wherein The system further includes a touch display module, and the touch display module provides a human-machine interaction interface and interacts with the microcontroller.

4. A cryogenic plasma surgical system with a stimulation function according to claim 1, characterized in that, It further includes a liquid control unit, and the liquid control unit is signal-connected to the microcontroller and responds to the control of the microcontroller.

5. A cryogenic plasma surgical system with a stimulation function according to claim 1, wherein The stimulation unit includes: a voltage stimulation sub-unit, a current stimulation sub-unit, and a stimulation interface sub-unit; The stimulation interface sub-unit converts the DIN2 digital signal output by the microcontroller into analog signals DAV voltage stimulation and DA1 current stimulation for output. The stimulation interface sub-unit consists of u1 and u2. u1 is an ADC conversion circuit that converts the input digital DIN2 into analog signals and outputs them from DAV and DA1. U2 is a reference voltage that provides a reference voltage for the conversion of u1.

6. The cryo-plasma surgical system with a stimulation function according to claim 5, wherein, The voltage stimulation sub-unit amplifies the analog voltage DAV output by u1 through u3, buffers and isolates it through u4 and loads it onto the optoelectronic relay, and then outputs it to the electrodes.

7. A cryogenic plasma surgical system with a stimulation function according to claim 6, characterized in that, The current stimulation sub-unit consists of U5, U6, Q4, and Q6 to form a constant current source, and outputs a current DA1 / R24, which is composed of an operational amplifier and a triode.

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