CN215384572U - Perfusion control device and plasma surgical system - Google Patents
Perfusion control device and plasma surgical system Download PDFInfo
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- CN215384572U CN215384572U CN202120918050.3U CN202120918050U CN215384572U CN 215384572 U CN215384572 U CN 215384572U CN 202120918050 U CN202120918050 U CN 202120918050U CN 215384572 U CN215384572 U CN 215384572U
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Abstract
The utility model provides a fill controlling means and plasma operation system, fill controlling means include temperature acquisition module, control module, temperature regulation module and refrigeration module, the temperature data of solution in the temperature acquisition module collection water tank, the temperature control signal that the temperature data of solution corresponds in control module output and the water tank, temperature regulation module receives temperature control signal, and export the refrigeration signal that corresponds, the refrigeration module that sets up in the water tank is responded to and is cooled down in the solution of refrigeration signal in to the water tank, and then cool down the salt solution in the water injection pipe, so that the salt solution that makes water injection system fill to operation electrode can keep lower temperature, avoid plasma high frequency energy to cause the damage because of higher temperature to human tissue.
Description
Technical Field
The application relates to the technical field of medical instruments, in particular to a perfusion control device and a plasma surgery system.
Background
The plasma operation system has the working principle that low-temperature (40-70 ℃) plasma high-frequency energy is generated through two electrodes of an operation electrode, physiological saline is ionized to generate plasma, the plasma has high kinetic energy under the high-frequency energy, lesion tissues between the two electrodes of the operation electrode are continuously impacted, protein molecular bonds in cells of the lesion tissues are damaged, and the protein molecular bonds are decomposed into simple and harmless carbohydrates and oxides (vaporization effect), so that the volume of the lesion tissues is gradually reduced visually, and the lesion tissues are cut off.
Although the low-temperature plasma high-frequency energy generated by the plasma surgical system is not a pure thermal operation tool, the low temperature of the low-temperature plasma high-frequency energy still belongs to a high temperature for the physiological temperature of a human body relative to an electrotome or laser, and particularly after the low-temperature plasma high-frequency energy lasts for a period of time, the low-temperature plasma high-frequency energy still causes obvious damage to human tissues.
The research results show that the operation effect can be better improved by adopting low-temperature saline (5-8 ℃) for perfusion in tonsil and adenoid plasma ablation operations. However, normal temperature normal saline is generally 23 to 25 ℃, and even if refrigerated normal saline is taken out from a refrigerator before an operation, the temperature tends to gradually rise along with the preparation time of the operation.
At present, perfusion control devices in plasma surgical systems only have a switch function for controlling saline and do not have a temperature regulation control function.
SUMMERY OF THE UTILITY MODEL
The application provides a can adjust perfusion control device and plasma surgery system of salt water temperature.
According to an aspect of the present application, there is provided in one embodiment a perfusion control device for a plasma surgical system including a surgical electrode and a water injection system for injecting saline to the surgical electrode, the water injection system including a water injection tube for injecting saline, a water tank for water-cooling the water injection tube, and an integrated controller, the perfusion control device including:
the temperature acquisition module is arranged in the water tank and is used for acquiring temperature data of the solution in the water tank;
the control module is arranged in the integrated controller and is used for receiving temperature data of the solution in the water tank and outputting a temperature control signal corresponding to the temperature data;
the temperature adjusting module is arranged in the water tank, connected to the control module and used for receiving the temperature control signal and outputting a corresponding refrigerating signal;
set up in the water tank and connect in the refrigeration module of temperature regulation module, the refrigeration module responds to the solution in refrigeration signal is to the water tank cools down.
In one embodiment, the refrigeration module comprises:
the refrigeration sheet is arranged on the side surface of the water tank and comprises a first surface and a second surface, the first surface absorbs heat in response to the refrigeration signal so as to enable the first surface to have refrigeration temperature, and the second surface is used for dissipating heat while absorbing heat;
the metal conduction piece is arranged in the water tank and connected to the first surface of the refrigeration piece and used for conducting the refrigeration temperature of the first surface of the refrigeration piece to the solution in the water tank so as to refrigerate the solution in the water tank.
In one embodiment, the temperature acquisition module comprises: the circuit comprises an integrated single-power-supply instrument amplifier, a thermistor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a first capacitor and a second capacitor;
one end of the first resistor is connected with a first voltage supply end, the other end of the first resistor is connected with one end of the second resistor, one end of the thermistor and one end of the third resistor, the other end of the second resistor is connected with the ground, the other end of the thermistor is connected with one end of the fourth resistor and one end of the sixth resistor, the other end of the third resistor is connected with one end of the fifth resistor and one end of the seventh resistor, the other end of the fourth resistor and the other end of the fifth resistor are both connected with the ground, the other end of the sixth resistor is connected with an-IN pin of the integrated single power supply instrumentation amplifier, the other end of the seventh resistor is connected with a + IN pin of the integrated single power supply instrumentation amplifier, the first capacitor is connected between the-IN pin and the + IN pin of the integrated single power supply instrumentation amplifier, the REF pin and the Vs-pin of the integrated single power supply instrumentation amplifier are connected with the ground, the second capacitor is connected between the-RG pin and the + RG pin of the integrated single power supply instrumentation amplifier, and the eighth resistor is connected in parallel at two ends of the second capacitor, a plus Vs pin of the integrated single-power-supply instrument amplifier is connected with the first voltage supply end, and an OUTPUT pin of the integrated single-power-supply instrument amplifier is used for outputting the temperature data.
In one embodiment, the temperature adjustment module comprises: the circuit comprises a first relay, a first interface, a third capacitor, a first diode, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor and a first switch;
a control electrode of the first switch is connected with one end of a ninth resistor and one end of a tenth resistor, the other end of the ninth resistor is used for receiving the temperature control signal, the other end of the tenth resistor is connected with a second electrode of the first switch in a ground way, a first electrode of the first switch is connected with an anode of a first diode, a cathode of the first diode is connected with a first voltage providing end, a third capacitor is connected in parallel with two ends of the first diode, a first pin of the first relay is connected with the first voltage providing end, a second pin of the first relay is connected with the first electrode of the first switch, a third pin of the first relay is connected with a second voltage providing end, a fourth pin of the first relay is suspended, a fifth pin of the first relay is connected with a first pin of the first interface and one end of a twelfth resistor through an eleventh resistor, the other end of the twelfth resistor is connected with a ground way, and a second pin of the first interface is connected with a ground, the first interface is also used for connecting the refrigeration module.
In one embodiment, the method further comprises:
and the mode selection switch is arranged on the outer surface of the integrated controller and is used for controlling the water injection system to switch between a flow automatic control function or a flow manual control function.
In one embodiment, the method further comprises:
and the flow control knob is arranged on the outer surface of the integrated controller and connected to the mode selection switch and is used for controlling the on or off of the water injection system when the mode selection switch is switched to a flow manual control function.
In one embodiment, the mode selection switch includes: the thirteenth resistor, the fourteenth resistor, the fifteenth resistor, the second switch, the light emitting diode and the second interface;
the first pole of the second switch is connected with one end of a fifteenth resistor, the other end of the fifteenth resistor is connected with the cathode of the light-emitting diode, the anode of the light-emitting diode is connected with a third voltage providing end, the second pole of the second switch is connected with the ground, the control pole of the second switch is connected with one end of a fourteenth resistor, the other end of the fourteenth resistor is connected with one end of a thirteenth resistor and the first pin of the second interface, the other end of the thirteenth resistor is connected with the third voltage providing end, and the second pin of the second interface is connected with the ground.
In one embodiment, the method further comprises:
and the communication module is arranged in the integrated controller and is used for carrying out data communication with a main control device of the plasma surgical system.
In one embodiment, the method further comprises:
and the display module is arranged on the outer surface of the integrated controller, connected to the control module and used for displaying the temperature of the solution in the water tank.
According to another aspect of the present application, there is provided in one embodiment a plasma surgical system comprising:
a surgical electrode;
the power control device is connected with the operation electrode and used for converting an alternating current signal input by the alternating current input end into an alternating current signal with preset power and outputting the alternating current signal to the operation electrode;
the water injection system is used for injecting saline water into the operation electrode so as to cool the operation electrode;
the perfusion control device according to the above embodiment is used for refrigerating the saline in the water injection system to perfuse the low-temperature saline to the surgical electrode, and controlling the on or off of the perfusion of the saline to the surgical electrode.
According to the perfusion control device for the plasma operation system of the embodiment, the temperature data of the solution in the water tank is collected by the temperature collection module, the control module outputs the temperature control signal corresponding to the temperature data of the solution in the water tank, the temperature regulation module receives the temperature control signal and outputs the corresponding refrigeration signal, the refrigeration module arranged in the water tank responds to the refrigeration signal to cool the solution in the water tank, and then the saline in the water injection pipe is cooled, so that the saline injected into the operation electrode by the water injection system can keep a lower temperature, and the damage of the high-frequency energy of the plasma to human tissues due to a higher temperature is avoided.
Drawings
FIG. 1 is a schematic diagram of a plasma surgical system according to an embodiment;
FIG. 2 is a schematic structural diagram of an embodiment of a perfusion control device;
FIG. 3 is a schematic circuit diagram of a temperature acquisition module according to an embodiment;
FIG. 4 is a schematic circuit diagram of a temperature regulation module according to an embodiment;
FIG. 5 is a circuit schematic of a mode select switch according to one embodiment;
FIG. 6 is a schematic structural diagram of a water injection system according to an embodiment;
FIG. 7 is a circuit diagram of a first power conversion module according to an embodiment;
FIG. 8 is a circuit schematic of a communication module of an embodiment;
fig. 9 is a circuit diagram of a flow control module according to an embodiment.
Detailed Description
The present application will be described in further detail below with reference to the accompanying drawings by way of specific embodiments. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.
Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments, and the operation steps involved in the embodiments may be interchanged or modified in order as will be apparent to those skilled in the art. Accordingly, the description and drawings are merely for clarity of description of certain embodiments and are not intended to necessarily refer to a required composition and/or order.
The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).
Referring to fig. 1, fig. 1 is a schematic structural diagram of a plasma surgery system according to an embodiment, where the plasma surgery system includes a power output device 101, a power control device 102, a surgical electrode 103, a main control device 104, a display device 105, a water injection system 106, a perfusion control device 107, and a switch device 108.
The power output device 101 is connected to the ac input terminal, and the power output device 101 is configured to convert an ac signal input from the ac input terminal into a dc signal and output the dc signal to the power control device 102. In the present embodiment, the ac input terminal is used for outputting an ac voltage signal of 220V.
In one embodiment, the power output apparatus 101 includes a switching power supply and a DC-DC voltage regulating circuit, wherein the switching power supply is connected to the ac input terminal for converting an ac signal inputted from the ac input terminal into a DC signal.
In this embodiment, the ac signal input at the ac input terminal is an ac voltage signal of 220V. The switching power supply can convert an alternating voltage signal of 220V into a direct voltage signal of + 48V.
The DC-DC voltage regulating circuit is connected with the switching power supply and is used for regulating the voltage value of the direct current signal output by the switching power supply to a preset voltage value and outputting the direct current signal with the preset voltage value.
Because the voltage value of the direct current voltage signal of plus 48V is far greater than the requirement of the preset voltage value, the voltage value of the direct current signal output by the switching power supply needs to be reduced by the DC-DC voltage regulating circuit, so that the DC-DC voltage regulating circuit can output the direct current signal of the preset voltage value, and on the other hand, the voltage value of the direct current signal output by the DC-DC voltage regulating circuit is related to the voltage value of the final output signal of the power control device, so that the control on the voltage value of the direct current signal output by the DC-DC voltage regulating circuit can also play a synergistic role in accurately controlling the power of the output signal of the power control device.
The power control device 102 is connected to the switching power supply, and the power control device 102 is configured to convert the dc signal into an ac signal with a preset power. The present embodiment can invert the dc signal into the ac signal with the predetermined power through the existing inverter circuit.
The operation electrode 103 is connected with the output end of the power control device 102, and the operation electrode 103 is used for receiving an alternating current signal with preset power and outputting a high-frequency signal with preset power.
The display device 105 is used for displaying parameter information of the plasma surgical system, such as parameter information of power of an output signal of a surgical electrode, time of the output signal, and the like.
The water injection system 106 is used for injecting saline into the operation electrode to cool the operation electrode. The saline in this embodiment is physiological saline. The water injection system 106 includes a water injection tube, a water tank for holding a solution, i.e., a cooling fluid, which in this embodiment may be water, saline or other fluid, and an integrated controller. The water tank is worn to locate by the water injection pipe, transfusion bottle or infusion bag are connected to the one end of water injection pipe, saline has been held in transfusion bottle or the infusion bag, operation electrode is connected to the other end of water injection pipe, the water injection pipe is used for leading the saline in transfusion bottle or the infusion bag to operation electrode and pours into, when the saline in the water injection pipe flows through the water tank, can utilize the saline in the water tank to cool down to the saline in the water injection pipe, the saline after the cooling flows to operation electrode again, integrated control ware is used for controlling opening and closing of valve between water injection pipe to the operation electrode, this valve is used for controlling opening and shutting-off of water injection system.
The switch device 108 is configured to send a corresponding trigger signal to the main control device when being triggered, where the trigger signal is used to trigger the main control device to control the plasma surgical system to perform at least one function, for example, the switch device may be a foot switch, and when the foot switch is triggered, the surgical electrode outputs a high-frequency signal with a preset power to achieve resection of the focal tissue; for example, when the foot switch is triggered, the water injection system infuses saline to the surgical electrode.
The perfusion control device 107 is used for cooling the solution in the water tank, and further refrigerating (water cooling) the saline water in the water injection system so as to perfuse the low-temperature saline water to the operation electrode and control the on-off of the saline water perfusion to the operation electrode.
Like this, utilize filling controlling means 107 to cool down the solution in the water tank, then cool down the salt solution in the water injection pipe for what pour into to the operation electrode is low temperature salt solution, can avoid plasma high frequency energy to cause the damage because of the higher temperature to human tissue.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a perfusion control device according to an embodiment, where the perfusion control device includes a temperature acquisition module 201, a control module 202, a temperature adjustment module 203, a refrigeration module 204, a display module 205, a mode selection switch 206, and a flow control module 207.
The temperature acquisition module 201 is arranged in a water tank of the water injection system, and the temperature acquisition module 201 is used for acquiring temperature data of solution in the water tank. Temperature acquisition module 201 accessible temperature sensor in this embodiment realizes, hugs closely temperature sensor the water tank, and during the temperature variation of solution in the water tank, the temperature of solution in the water tank is judged according to the different signal of telecommunication of temperature acquisition module 201 exportable difference.
In an embodiment, referring to fig. 3, the temperature acquisition module 201 includes: the integrated single-power instrument amplifier circuit comprises an integrated single-power instrument amplifier U1, a thermistor PT1, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a first capacitor C1 and a second capacitor C2. Wherein, one end of the first resistor R1 is connected with the first voltage supply end (+ 5V), the other end of the first resistor R1 is connected with one end of the second resistor R2, one end of the thermistor PT1 and one end of the third resistor R3, the other end of the second resistor R2 is connected with ground, the other end of the thermistor PT1 is connected with one end of the fourth resistor R4 and one end of the sixth resistor R6, the other end of the third resistor R3 is connected with one end of the fifth resistor R5 and one end of the seventh resistor R7, the other end of the fourth resistor R4 and the other end of the fifth resistor R5 are both connected with ground, the other end of the sixth resistor R6 is connected with the-IN pin of the integrated single power supply instrumentation amplifier U1, the other end of the seventh resistor R7 is connected with the + IN pin of the integrated single power supply instrumentation amplifier U1, the first capacitor C1 is connected between the-IN pin and the + IN pin of the integrated single power supply instrumentation amplifier U1, the REF pin and the Vs-pin of the integrated single-power-supply instrument amplifier U1 are connected to the ground, the second capacitor C2 is connected between the-RG pin and the + RG pin of the integrated single-power-supply instrument amplifier U1, the eighth resistor R8 is connected to two ends of the second capacitor C2 in parallel, the + Vs pin of the integrated single-power-supply instrument amplifier U1 is connected to a first voltage supply end (+ -5V), and the OUTPUT pin of the integrated single-power-supply instrument amplifier U1 is used for outputting temperature data, wherein the temperature data OUTPUT by the OUTPUT pin is a voltage signal related to the temperature of the solution.
In the embodiment, the thermistor PT1 is disposed in the solution in the water tank, and the resistance of the thermistor PT1 changes with the change of the solution temperature, and the voltage value of the voltage signal OUTPUT by the OUTPUT pin of the integrated single power supply instrumentation amplifier U1 also changes, for example, the voltage value of the voltage signal OUTPUT is larger when the solution temperature in the water tank is higher. The type of the thermistor in this embodiment is PT 100.
The control module 202 is disposed in an integrated controller of the water injection system 106, and the control module 202 is configured to receive temperature data of the solution in the water tank output by the temperature acquisition module 201, and output a temperature control signal corresponding to the temperature data. In this embodiment, the control module 202 may be a main control chip such as a single chip, and it can determine whether to cool the solution in the water tank according to the magnitude of the voltage value corresponding to the temperature data, and if so, output a temperature control signal. In this embodiment, the temperature control signal may be a PWM signal, and the duty ratio of the PWM signal is adjusted to adjust the magnitude of the driving signal, so as to adjust the temperature of the solution.
The temperature adjusting module 203 is arranged in the water tank and connected with the control module 202, and the temperature adjusting module 203 is used for receiving a temperature control signal and outputting a corresponding refrigerating signal.
In one embodiment, referring to fig. 4, the temperature adjustment module 203 includes: the circuit comprises a first relay K1, a first interface P1, a third capacitor C3, a first diode D1, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12 and a first switch Q1; a control electrode of the first switch Q1 is connected to one end of the ninth resistor R9 and one end of the tenth resistor R10, the other end of the ninth resistor R9 is used for receiving the temperature control signal, the other end of the tenth resistor R10 is connected to the second electrode of the first switch Q1, the first electrode of the first switch Q1 is connected to the anode of the first diode D1, the cathode of the first diode D1 is connected to the first voltage supply terminal (+ 5V), the third capacitor C3 is connected in parallel to the two ends of the first diode D1, the first pin of the first relay K1 is connected to the first voltage supply terminal (+ 5V), the second pin of the first relay K1 is connected to the first electrode of the first switch Q1, the third pin of the first relay K1 is connected to the second voltage supply terminal (+ 24V), the fourth pin of the first relay K1 is floating, the fifth pin of the first relay K1 is connected to the first interface P1 of the first resistor R11 through the eleventh resistor R68525, One end of the twelfth resistor R12, the other end of the twelfth resistor R12 are connected to ground, the second pin of the first port P1 is connected to ground, and the first port P1 is further used for connecting a refrigeration module.
When the control module 202 outputs a high level signal, the first switch Q1 is turned on, the first relay K1 is closed, and at this time, the first pin of the first interface P1 outputs a high level signal (refrigeration signal) to the refrigeration module, and the refrigeration module performs refrigeration to reduce the temperature of the solution in the water tank; when the control module 202 outputs a low level signal, the first switch Q1 is turned off, the first relay K1 is in an off state, and at this time, the first pin of the first interface P1 outputs a low level signal (refrigeration signal) to the refrigeration module, and the refrigeration module does not operate. In summary, the temperature for refrigerating the solution in the water tank can be adjusted by adjusting the duty ratio of the high-level signal in the refrigerating signal, and the duty ratio of the high-level signal in the refrigerating signal is in positive correlation with the duty ratio of the temperature control signal output by the control module 202.
In one embodiment, the refrigeration module 204 includes: refrigeration piece and metal conduction piece. The refrigeration piece is arranged on the side surface of the water tank and comprises a first surface and a second surface, the first surface absorbs heat in response to a refrigeration signal so that the first surface has refrigeration temperature, and the second surface is used for dissipating heat while absorbing heat of the first surface. The metal conduction piece is arranged in the water tank, connected to the first surface of the refrigeration piece and used for conducting the refrigeration temperature of the first surface of the refrigeration piece to the solution in the water tank so as to refrigerate the solution in the water tank. The refrigeration piece in this embodiment is the semiconductor refrigeration piece, and the metal conduction piece is the conduction piece that the material is aluminium, and it can conduct the refrigeration temperature of the first surface of refrigeration piece to in the solution. In addition, when the second surface of the cooling plate dissipates heat, a metal conduction piece and a direct current fan are needed to blow heat to the air quickly for dissipation.
The display module 205 is disposed on an outer surface of the integrated controller and connected to the control module, and the display module 205 is used for displaying a temperature of the solution in the water tank.
The mode selection switch 20 is arranged on the outer surface 6 of the integrated controller, and the mode selection switch 20 is used for controlling the water injection system to switch between a flow automatic control function or a flow manual control function.
In an embodiment, referring to fig. 5, the mode selection switch 20 includes a thirteenth resistor R13, a fourteenth resistor R14, a fifteenth resistor R15, a second switch Q2, a light emitting diode D2 and a second interface P2. A first pole of the second switch Q2 is connected to one end of a fifteenth resistor R15, the other end of the fifteenth resistor R15 is connected to the cathode of the light emitting diode D2, the anode of the light emitting diode D2 is connected to the third voltage providing terminal (+ 3.3V), the second pole of the second switch Q2 is connected to ground, the control pole of the second switch Q2 is connected to one end of the fourteenth resistor R14, the other end of the fourteenth resistor R14 is connected to one end of the thirteenth resistor R13 and the first pin of the second interface P2, the other end of the thirteenth resistor R13 is connected to the third voltage providing terminal (3.3V), the second pin of the second interface P2 is connected to ground, and the second interface P2 is further connected to a button for user triggering.
When a user triggers the button, the first pin and the second pin of the second interface P2 are communicated, the second switch Q2 is turned off, the light-emitting diode D2 does not emit light, and the manual flow control function is indicated to enter; conversely, when the user does not activate the button, the second switch Q2 is turned on and the led D2 is illuminated to indicate entry into the automatic flow control function.
The outer surface of the integrated controller is also provided with a flow control knob, the flow control knob is connected with a mode selection switch, and the flow control knob is used for controlling the switching on or off of the physiological saline in the water injection system when the mode selection switch is switched to a manual control function. That is, when the mode selection switch is switched to manually control the flow rate, the user may control whether the water injection system injects the saline to the surgical electrode by rotating the flow rate control knob.
In this embodiment, since the third voltage providing terminal in the mode selection switch needs to input a voltage signal of +3.3V, and the power signal adopted by the main control device is a voltage signal of +5V, the embodiment further includes a first power conversion module, and the first power conversion module is configured to convert the voltage signal of +5V into a voltage signal of +3.3V and output the voltage signal to the third voltage providing terminal. Referring to fig. 7, fig. 7 is a circuit diagram of a first power conversion module according to an embodiment, which can be implemented by a conventional LDO regulator U2.
In addition, data needs to be transmitted between the control module 202 and the main control device 104, in this embodiment, the control module 202 and the main control device 104 are communicated in an RS485 communication manner, please refer to fig. 8, and fig. 8 is a circuit diagram of the communication module according to an embodiment.
In this embodiment, an electromagnetic valve and a micro switch are arranged in the water injection system, the electromagnetic valve controls the opening or closing of the electromagnetic valve through a flow control module, when the water injection system is in an automatic flow control function, an input end of the flow control module is in signal connection with a main control device through the control module, at this time, the input end of the flow control module is used for receiving an electromagnetic valve control signal which is sent by the main control device and used for controlling the closing or the closing of the electromagnetic valve, when the water injection system is in a manual flow control function, the input end of the flow control module is electrically connected with a flow control knob, and at this time, the input end of the flow control module is used for receiving an electromagnetic valve control signal which is sent by the flow control knob under the triggering of a user and used for controlling the closing or the closing of the electromagnetic valve. And the electromagnetic valve is mechanically connected with the microswitch, so that the microswitch is linked with the electromagnetic valve, when the electromagnetic valve is closed, the microswitch is closed along with the electromagnetic valve, the normal saline is filled into the operation electrode, when the electromagnetic valve is closed, the microswitch is closed along with the electromagnetic valve, and the normal saline stops being filled into the operation electrode.
Referring to fig. 9, fig. 9 is a circuit diagram of a Flow control module according to an embodiment, in which the Flow control module 207 controls the on/off of the solenoid valve by switching the automatic Flow control function and the manual Flow control function through a mode selection Switch by a user, where a Flow Switch signal is a solenoid valve control signal for controlling the on/off of the solenoid valve, a Switch K2 is a relay, a fourth interface P4 is connected to the solenoid valve, and a fifth interface P5 is connected to a micro Switch. For example, in the manual mode, a flow opening operation (i.e., solenoid valve closing) is performed for the first time; when the water injection system needs to be closed, the flow control knob is manually rotated, the relay K2 is disconnected, the electromagnetic valve is turned off, and the micro switch is turned off along with the electromagnetic valve. For another example, in the automatic mode, the communication module informs the master control device of the state, when the master control device receives a signal (power output is turned on) for stepping on the foot switch, the master control device sends an electromagnetic valve control signal for controlling the electromagnetic valve to be closed to the flow control module through the control module, the relay K2 is closed, and the electromagnetic valve executes a closing operation; conversely, when the foot switch is released (power output is turned off), the relay K2 is turned off, and the solenoid valve performs a turn-off operation.
In an embodiment, please refer to fig. 6, fig. 6 is a schematic structural diagram of an embodiment of a water injection system, the water injection system includes a water injection pipe 301, a water tank 302 and an integrated controller 305, wherein the water tank 302 is used for containing a solution, the water injection pipe 301 is disposed through the water tank, one end of the water injection pipe 301 is connected to a hanging bottle or an infusion bag, the other end of the water injection pipe 301 is connected to an operation electrode, the water injection pipe is used for guiding a saline solution in the hanging bottle or the infusion bag to the operation electrode for infusion, when the solution in the water tank is refrigerated, the solution in the water tank can simultaneously cool the saline solution in the water injection pipe, and the integrated controller 305 is provided with a display module 303, a mode selection switch 304, a flow control knob 307 and a temperature acquisition module 306. The display module 303 is a display screen for displaying the temperature of the solution in the water tank, the mode selection switch 304 is a button, when the user presses the button, the mode selection switch 304 switches between the automatic flow control function and the manual flow control function, and when the flow control button 307 is in the manual flow control function, the flow control button 307 is manually rotated to control whether the water injection system injects the saline to the surgical electrode.
In the present embodiment, the solution is water, physiological saline or other liquid.
The present invention has been described in terms of specific examples, which are provided to aid understanding of the utility model and are not intended to be limiting. For a person skilled in the art to which the utility model pertains, several simple deductions, modifications or substitutions may be made according to the idea of the utility model.
Claims (10)
1. A perfusion control device for a plasma surgical system, the plasma surgical system including a surgical electrode and a water injection system for injecting saline to the surgical electrode, the water injection system including a water injection tube, a water tank and an integrated controller, the water injection tube for injecting saline, the water tank for water-cooling the water injection tube, the perfusion control device comprising:
the temperature acquisition module is arranged in the water tank and is used for acquiring temperature data of the solution in the water tank;
the control module is arranged in the integrated controller and is used for receiving temperature data of the solution in the water tank and outputting a temperature control signal corresponding to the temperature data;
the temperature adjusting module is arranged in the water tank, connected to the control module and used for receiving the temperature control signal and outputting a corresponding refrigerating signal;
set up in the water tank and connect in the refrigeration module of temperature regulation module, the refrigeration module responds to the solution in refrigeration signal is to the water tank cools down.
2. The perfusion control device of claim 1, wherein the refrigeration module comprises:
the refrigeration sheet is arranged on the side surface of the water tank and comprises a first surface and a second surface, the first surface absorbs heat in response to the refrigeration signal so as to enable the first surface to have refrigeration temperature, and the second surface is used for dissipating heat while absorbing heat;
the metal conduction piece is arranged in the water tank and connected to the first surface of the refrigeration piece and used for conducting the refrigeration temperature of the first surface of the refrigeration piece to the solution in the water tank so as to refrigerate the solution in the water tank.
3. The perfusion control device of claim 1, wherein the temperature acquisition module comprises: the circuit comprises an integrated single-power-supply instrument amplifier (U1), a thermistor (PT1), a first resistor (R1), a second resistor (R2), a third resistor (R3), a fourth resistor (R4), a fifth resistor (R5), a sixth resistor (R6), a seventh resistor (R7), an eighth resistor (R8), a first capacitor (C1) and a second capacitor (C2);
one end of the first resistor (R1) is connected with a first voltage supply end, the other end of the first resistor (R1) is connected with one end of the second resistor (R2), one end of the thermistor (PT1) and one end of the third resistor (R3), the other end of the second resistor (R2) is connected with the ground, the other end of the thermistor (PT1) is connected with one end of the fourth resistor (R4) and one end of the sixth resistor (R6), the other end of the third resistor (R3) is connected with one end of the fifth resistor (R5) and one end of the seventh resistor (R7), the other end of the fourth resistor (R4) and the other end of the fifth resistor (R5) are both connected with the ground, the other end of the sixth resistor (R6) is connected with a pin of the integrated single power supply instrument amplifier (U1), the other end of the seventh resistor (R7) is connected with an IN pin of the integrated single power supply instrument amplifier (U1), and an IN pin (IN) of the integrated single power supply instrument amplifier (U1) is connected with an IN pin (IN pin) of the integrated single power supply instrument amplifier (U1) Meanwhile, the REF pin and the Vs-pin of the integrated single-power-supply instrument amplifier (U1) are connected to the ground, a second capacitor (C2) is connected between the-RG pin and the + RG pin of the integrated single-power-supply instrument amplifier (U1), an eighth resistor (R8) is connected to two ends of the second capacitor (C2) in parallel, the + Vs pin of the integrated single-power-supply instrument amplifier (U1) is connected to the first voltage supply end, and the OUTPUT pin of the integrated single-power-supply instrument amplifier (U1) is used for outputting the temperature data.
4. The perfusion control device of claim 1, wherein the temperature adjustment module comprises: the circuit comprises a first relay (K1), a first interface (P1), a third capacitor (C3), a first diode (D1), a ninth resistor (R9), a tenth resistor (R10), an eleventh resistor (R11), a twelfth resistor (R12) and a first switch (Q1);
the control electrode of the first switch (Q1) is connected with one end of a ninth resistor (R9) and one end of a tenth resistor (R10), the other end of the ninth resistor (R9) is used for receiving the temperature control signal, the other end of the tenth resistor (R10) is connected with the second electrode of the first switch (Q1) in a grounding manner, the first electrode of the first switch (Q1) is connected with the anode of a first diode (D1), the cathode of the first diode (D1) is connected with a first voltage providing end (+ 5V), a third capacitor (C3) is connected with the two ends of the first diode (D1) in a parallel manner, the first pin of the first relay (K1) is connected with the first voltage providing end, the second pin of the first relay (K1) is connected with the first electrode of the first switch (Q1), the third pin of the first relay (K1) is connected with the second voltage providing end, the first pin of the first relay (K1) is connected with the first pin of a fifth relay (K638), and the first pin (P1) is connected with the first interface (P11) of the first switch (R858), One end of a twelfth resistor (R12), the other end of the twelfth resistor (R12) is connected to the ground, the second pin of the first interface (P1) is connected to the ground, and the first interface (P1) is also used for connecting the refrigeration module.
5. The perfusion control device of claim 1, further comprising:
and the mode selection switch is arranged on the outer surface of the integrated controller and is used for controlling the water injection system to switch between a flow automatic control function or a flow manual control function.
6. The perfusion control device of claim 5, further comprising:
and the flow control knob is arranged on the outer surface of the integrated controller and connected to the mode selection switch and is used for controlling the on or off of the water injection system when the mode selection switch is switched to a flow manual control function.
7. The perfusion control device of claim 5, wherein the mode selection switch comprises: a thirteenth resistor (R13), a fourteenth resistor (R14), a fifteenth resistor (R15), a second switch (Q2), a light emitting diode (D2) and a second interface (P2);
the first pole of the second switch (Q2) is connected with one end of a fifteenth resistor (R15), the other end of the fifteenth resistor (R15) is connected with the cathode of a light-emitting diode (D2), the anode of the light-emitting diode (D2) is connected with a third voltage providing end, the second pole of the second switch (Q2) is connected with the ground, the control pole of the second switch (Q2) is connected with one end of a fourteenth resistor (R14), the other end of the fourteenth resistor (R14) is connected with one end of a thirteenth resistor (R13) and the first pin of the second interface (P2), the other end of the thirteenth resistor (R13) is connected with the third voltage providing end (3.3V), and the second pin of the second interface (P2) is connected with the ground.
8. The perfusion control device of claim 5, further comprising:
and the communication module is arranged in the integrated controller and is used for carrying out data communication with a main control device of the plasma surgical system.
9. The perfusion control device of claim 1, further comprising:
and the display module is arranged on the outer surface of the integrated controller, connected to the control module and used for displaying the temperature of the solution in the water tank.
10. A plasma surgical system, comprising:
a surgical electrode;
the power control device is connected with the operation electrode and used for converting an alternating current signal input by the alternating current input end into an alternating current signal with preset power and outputting the alternating current signal to the operation electrode;
the water injection system is used for injecting saline water into the operation electrode so as to cool the operation electrode;
the perfusion control device of any one of claims 1-9, configured to refrigerate saline in the water injection system to perfuse the surgical electrode with low temperature saline, and to control on or off of perfusion of saline to the surgical electrode.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115607263A (en) * | 2022-09-30 | 2023-01-17 | 江苏邦士医疗科技有限公司 | Plasma radio frequency surgery system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115607263A (en) * | 2022-09-30 | 2023-01-17 | 江苏邦士医疗科技有限公司 | Plasma radio frequency surgery system |
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