Energy host with temperature identification function and plasma operation equipment

Abstract

The utility model provides an energy host with a temperature identification function and plasma operation equipment. The energy host comprises an acquisition module, a processing module and an inversion module, the inversion module is connected to the operation electrode, and the inversion module is used for transmitting the generated energy signal to the operation electrode, so that the operation electrode generates an electric field at the target tissue; the acquisition module is connected to the inversion module, the processing module and the operation electrode, and the acquisition module is used for acquiring a voltage value of the energy signal to obtain a voltage signal and acquiring a current value of the energy signal to obtain a current signal; the processing module is used for receiving the voltage signal and the current signal to obtain impedance information of the target tissue, and the impedance information is used for determining the current temperature of the target tissue. Compared with the prior art, the operation electrode does not need to be changed, only the collection module needs to be additionally arranged in the energy host, and cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to an energy host and plasma surgical equipment with a temperature recognition function. Background Art

[0002] Plasma surgical equipment is an electrosurgical device used for surgical procedures, consisting of an energy source and surgical electrodes. The specific operating principle is that the processing module in the energy source controls the inverter module to generate high-frequency energy, which is then transmitted to the surgical electrodes through the electrode interface. The surgical electrodes then generate an electric field that stimulates the saline solution at the patient's lesion to produce plasma, thus completing the surgical operation.

[0003] Surgical electrodes generate high temperatures during operation. To prevent damage to human tissue, it's necessary to collect temperature data in real time and adjust the high-frequency energy intensity output by the energy source. However, existing methods for collecting temperature data typically involve installing a temperature sensor at the surgical electrode. This requires designing a suitable location for the temperature sensor, which in turn requires adjustments to the electrode structure and results in high manufacturing costs. Utility Model Content

[0004] The main purpose of the present utility model is to provide an energy host and plasma surgical equipment with temperature recognition function, aiming to solve the technical problem that in the prior art, the temperature of human tissue is obtained by a temperature sensor, the position of the temperature sensor needs to be designed and installed at the surgical electrode, and the structure of the surgical electrode needs to be adjusted, resulting in high manufacturing costs.

[0005] To achieve the above object, the present invention proposes an energy host with temperature recognition function, the energy host comprising: an acquisition module, a processing module and an inverter module;

[0006] The inverter module is connected to the surgical electrode, and is used to transmit the generated energy signal to the surgical electrode, so that the surgical electrode generates an electric field at the target tissue;

[0007] The acquisition module is respectively connected to the inverter module, the processing module and the surgical electrode, and is used to acquire the voltage value of the energy signal to obtain a voltage signal, and to acquire the current value of the energy signal to obtain a current signal;

[0008] The processing module is used to receive the voltage signal and the current signal to obtain impedance information of the target tissue, and the impedance information is used to determine the current temperature of the target tissue.

[0009] In one embodiment, the acquisition module includes: a voltage acquisition unit and a current acquisition unit;

[0010] The voltage acquisition unit is connected to the inverter module, the processing module and the surgical electrode respectively, and is used to acquire the voltage value of the energy signal to obtain a voltage signal, and transmit the voltage signal to the processing module;

[0011] The current acquisition unit is respectively connected to the inverter module, the processing module and the surgical electrode. The current acquisition unit is used to collect the current value of the energy signal to obtain a current signal, and transmit the current signal to the processing module.

[0012] In one embodiment, the voltage acquisition unit includes: a first acquisition subunit and a current limiting subunit;

[0013] The current limiting subunit is respectively connected to the inverter module, the surgical electrode and the first acquisition subunit, and the current limiting subunit is used to limit the current of the energy signal;

[0014] The first acquisition subunit is connected to the processing module, and is used to acquire the voltage value of the energy signal after current limiting to obtain a voltage signal, and transmit the voltage signal to the processing module.

[0015] In one embodiment, the voltage acquisition unit further includes: an amplifying subunit;

[0016] The amplifying subunit is connected to the first collecting subunit and the processing module respectively. The amplifying subunit is used to amplify the voltage signal and transmit the amplified voltage signal to the processing module.

[0017] In one embodiment, the voltage acquisition unit further includes: a first voltage following subunit;

[0018] The first voltage follower subunit is connected to the amplifying subunit and the processing module respectively. The first voltage follower subunit is used to perform a first voltage following on the amplified voltage signal and transmit the voltage signal after the first voltage following to the processing module.

[0019] In one embodiment, the voltage acquisition unit further includes: a first filtering subunit;

[0020] The first filtering subunit is connected to the amplifying subunit and the first voltage following subunit respectively, and the first filtering subunit is used to filter the amplified voltage signal;

[0021] The first voltage following subunit is further configured to perform a first voltage following operation on the filtered voltage signal.

[0022] In one embodiment, the current acquisition unit includes: a second acquisition subunit and a conversion subunit;

[0023] The second acquisition subunit is connected to the inverter module, the surgical electrode and the conversion subunit respectively, and is used to collect the current value of the energy signal to obtain a current signal, and transmit the current signal to the conversion subunit;

[0024] The conversion subunit is connected to the processing module, and is used to perform effective value conversion on the current signal and transmit the converted current signal to the processing module.

[0025] In one embodiment, the current acquisition unit further includes: a second voltage follower subunit and a third voltage follower subunit;

[0026] The second voltage follower subunit is connected to the conversion subunit and the third voltage follower subunit respectively, and the second voltage follower subunit is used to perform a second voltage follow on the converted current signal and transmit the current signal after the second voltage follow to the third voltage follower subunit;

[0027] The third voltage follower subunit is connected to the processing module, and is used to perform a third voltage follow on the current signal after the second voltage follower, and transmit the current signal after the third voltage follower to the processing module.

[0028] In one embodiment, the current acquisition unit further includes: a second filtering subunit;

[0029] The second filtering sub-unit is connected to the second voltage following sub-unit and the third voltage following sub-unit respectively, and the second filtering unit is used to filter the current signal after the second voltage following;

[0030] The third voltage follower subunit is further configured to perform a third voltage follow on the filtered current signal.

[0031] In addition, to achieve the above-mentioned purpose, the present invention also proposes a plasma surgical device, which includes the energy host as described above.

[0032] The present invention provides an energy host and plasma surgical equipment with temperature recognition function. The energy host includes: a collection module, a processing module, and an inverter module. The inverter module is connected to a surgical electrode and is used to transmit a generated energy signal to the surgical electrode so that the surgical electrode generates an electric field at the target tissue. The collection module is connected to the inverter module, the processing module, and the surgical electrode respectively. The collection module is used to collect the voltage value of the energy signal to obtain a voltage signal, and the current value of the energy signal to obtain a current signal. The processing module is used to receive the voltage signal and the current signal to obtain impedance information of the target tissue, and the impedance information is used to determine the current temperature of the target tissue. Because the present invention can set the collection module between the inverter module and the surgical electrode and connect the collection module to the processing module, the collection module can collect the current value and voltage value of the energy signal transmitted from the inverter module to the surgical electrode to obtain a current signal and a voltage signal, respectively, and transmit the current signal and the voltage signal to the processing module. Since there is a certain relationship between current, voltage, and temperature, the processing module can determine the current temperature of the target tissue based on the current signal and the voltage signal. Compared with the existing method that requires setting an installation position for a temperature sensor at the surgical electrode and installing the temperature sensor, the utility model does not require any changes to the surgical electrode, and only requires adding a collection module inside the energy host, which is low in cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0034] Figure 1 This is a schematic diagram of the structure of traditional plasma surgical equipment;

[0035] Figure 2 This is a structural block diagram of the first embodiment of the energy host with temperature recognition function proposed in the embodiment of the utility model;

[0036] Figure 3 This is a circuit diagram of a voltage acquisition unit in a second embodiment of an energy host with a temperature recognition function proposed in an embodiment of the present utility model;

[0037] Figure 4 This is a circuit schematic diagram of the current acquisition unit in the third embodiment of the energy host with temperature recognition function proposed in an embodiment of the present utility model.

[0038] Description of Figure Numbers:

[0039]

[0040]

[0041] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0042] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0044] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0045] In addition, the descriptions of "first," "second," etc. in this utility model are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features specified as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0046] It should be noted that, referring to Figure 1 , Figure 1 It is a structural diagram of traditional plasma surgical equipment, such as Figure 1As shown, the current plasma surgical equipment may include: a display screen, a foot pedal, an energy host 1 and a surgical electrode, wherein the energy host 1 may include: a processing module 11, a step-down module 12, an inverter module 13 and an electrode interface; the processing module 11 is respectively connected to the display screen, the foot pedal, the step-down module 12 and the inverter module 13, the step-down module 12 is also connected to the inverter module 13, and the inverter module 13 is then connected to the surgical electrode through the electrode interface, wherein the above-mentioned processing module 11 can be composed of a single-chip microcomputer, etc., and the above-mentioned step-down module 12 can be composed of a BUCK circuit.

[0047] During use, the user can first set the relevant parameters (such as output gear, etc.) through the display screen. The processing module 11 generates a power signal according to the relevant parameters and transmits it to the step-down module 12. The step-down module 12 converts the energy provided by the power supply into direct current corresponding to the power signal according to the power signal and transmits it to the inverter module 13. When the user needs the surgical electrode to generate an electric field, he can step on the pedal. The processing module 11 can generate a control signal to the inverter module 13. The inverter module 13 converts the direct current into high-frequency alternating current, thereby generating high-frequency energy and transmitting it to the surgical electrode through the electrode interface. The surgical electrode then generates an electric field to excite the saline solution at the patient's lesion into plasma, thereby completing the surgical operation.

[0048] Surgical electrodes generate high temperatures during operation. To prevent damage to human tissue, it is necessary to collect the temperature of the tissue in real time and adjust the high-frequency energy intensity output by the energy host 1. However, existing methods for collecting temperature generally involve installing a temperature sensor at the surgical electrode to collect the temperature. This method requires designing a location for the temperature sensor at the surgical electrode, which requires adjustments to the surgical electrode structure and is costly to manufacture.

[0049] Therefore, in order to address the above-mentioned drawbacks, this embodiment provides an energy host 1 with a temperature recognition function. By setting an acquisition module between the inverter module and the surgical electrode and connecting the acquisition module to the processing module, the acquisition module can respectively acquire the current value and voltage value of the energy signal transmitted from the inverter module to the surgical electrode to obtain the current signal and voltage signal, and transmit the current signal to the processing module. Since there is a certain relationship between current, voltage and temperature, the processing module can determine the current temperature of the target tissue based on the current signal and voltage signal. Compared with the existing method that requires setting a temperature sensor installation position and installing the temperature sensor on the surgical electrode, this embodiment does not require any changes to the surgical electrode, and only requires adding an acquisition module inside the energy host 1, which is relatively low in cost.

[0050] For ease of understanding, the following Figures 2 to 4 The energy host 1 with temperature recognition function provided in an embodiment of the present application is introduced in detail.

[0051] Reference Figure 2 , Figure 2 This is a structural block diagram of the first embodiment of the energy host 1 with temperature recognition function proposed in an embodiment of the present utility model.

[0052] like Figure 2 As shown, in this embodiment, the energy host 1 includes: a collection module 14, a processing module 11 and an inverter module 13;

[0053] The inverter module 13 is connected to the surgical electrode, and is used to transmit the generated energy signal to the surgical electrode, so that the surgical electrode generates an electric field at the target tissue.

[0054] It is understandable that the above solution of this embodiment can be applied to scenarios where the temperature of human tissue needs to be collected, and of course can also be applied to other scenarios where temperature collection is required, and this embodiment does not limit this.

[0055] It should be understood that the above-mentioned processing module 11 can also be a single-chip microcomputer, and the energy host 1 in this embodiment can also include a step-down module 12. The specific composition of the step-down module 12 and the inverter module 13 can be consistent with the traditional ones. At the same time, the processing module 11 can also be connected to the display screen and the foot pedal, and the inverter module 13 can also be connected to the surgical electrode through the electrode interface J2. These parts and work processes are consistent with the traditional ones, and this embodiment will not elaborate on them.

[0056] In actual use, the inverter module 13 can generate high-frequency alternating current based on the direct current provided by the step-down module 12. In this embodiment, the signal corresponding to the high-frequency alternating current can be used as the energy signal. The target tissue can be the human tissue where the surgical electrode is located.

[0057] The acquisition module 14 is respectively connected to the inverter module 13, the processing module 11 and the surgical electrode. The acquisition module 14 is used to acquire the voltage value of the energy signal to obtain a voltage signal, and to acquire the current value of the energy signal to obtain a current signal.

[0058] like Figure 2As shown, in this embodiment, an additional acquisition module 14 can be added to the path connecting the inverter module 13 and the electrode receiving device. Specifically, the acquisition module 14 is connected to the inverter module 13, the electrode interface, and the processing module 11. The acquisition module 14 can be a module with current and voltage acquisition functions. Furthermore, in actual use, when the inverter module 13 transmits the energy signal to the surgical electrode through the electrode interface, the acquisition module 14 can collect the current and voltage values ​​corresponding to the energy signal, generate the current signal and voltage signal, respectively, and transmit the current signal and voltage signal to the processing module 11.

[0059] The processing module 11 is used to receive the voltage signal and the current signal to obtain impedance information of the target tissue, and the impedance information is used to determine the current temperature of the target tissue.

[0060] It should be noted that, in this embodiment, a mapping relationship table about the relationship between impedance information and temperature may be stored in advance in the above-mentioned processing module 11. The processing module 11 calculates the mapping relationship table between the impedance value and the temperature based on the current value of the energy signal and the voltage value of the energy signal, or the mapping relationship table between the impedance value and the temperature based on the current value of the energy signal after processing (i.e., the following Fourier transform and filtering, etc.) and the voltage value of the processed energy signal. The temperature can be obtained by looking up the table. The mapping relationship table can be constructed in advance through testing, and of course it can also be constructed in other ways, which is not limited in this embodiment.

[0061] The impedance information can be information corresponding to the impedance of the target tissue. It should be understood that different target tissues have specific impedance values ​​under different thermal states, and thus can indirectly reflect information such as the current temperature and degree of thermal damage of the target tissue. In this embodiment, after the processing module 11 obtains the voltage signal and the current signal, it can calculate the impedance value based on the voltage value of the voltage signal and the current value of the current signal in combination with Ohm's law. This impedance value is then used as the impedance information of the target tissue. Finally, the corresponding temperature can be obtained by querying the mapping table. It should be noted that since calculating impedance based on voltage and current values ​​is common knowledge, the methods or procedures involved in calculating impedance and reading and querying the mapping table by the processing module 11 can be implemented using existing technologies, and therefore do not involve any improvements to the methods or procedures. Of course, the calculation of impedance and reading and querying the mapping table by the processing module 11 can also be implemented using existing hardware logic circuits, such as division circuits and memory chips, and this embodiment does not elaborate on this.

[0062] In actual use, after the processing module 11 obtains the current signal and the voltage signal, in order to facilitate subsequent processing, the current signal and the voltage signal can be first fast Fourier transformed and converted into frequency domain signals, and then transmitted to the bandpass filter for filtering to obtain the filtered current signal and the filtered voltage signal. The impedance value R is then calculated based on the filtered current signal and the filtered voltage signal, that is, R = filtered voltage signal / filtered current signal. The mapping relationship table is then queried based on the impedance value R to obtain the corresponding temperature as the current temperature of the above-mentioned target tissue.

[0063] In a specific implementation, this embodiment can be implemented by providing a collection module 14 between the inverter module 13 and the surgical electrode, and connecting the collection module 14 to the processing module 11. The collection module 14 can respectively collect the current and voltage values ​​of the energy signal transmitted from the inverter module 13 to the surgical electrode to obtain a current signal and a voltage signal, and transmit the current signal to the processing module 11. Since there is a certain relationship between current, voltage, and temperature, the processing module 11 can then determine the current temperature of the target tissue based on the current and voltage signals. Compared to the existing method that requires setting a temperature sensor installation position and installing the temperature sensor on the surgical electrode, this embodiment does not require any changes to the surgical electrode, and only requires adding the collection module 14 within the energy host 1, which is relatively low in cost.

[0064] Further, in order to obtain the current value and voltage value, continue as follows Figure 2 As shown, in this embodiment, the acquisition module 14 includes: a voltage acquisition unit 141 and a current acquisition unit 142;

[0065] The voltage acquisition unit 141 is connected to the inverter module 13, the processing module 11 and the surgical electrode respectively. The voltage acquisition unit 141 is used to acquire the voltage value of the energy signal to obtain a voltage signal, and transmit the voltage signal to the processing module 11;

[0066] The current acquisition unit 142 is respectively connected to the inverter module 13 , the processing module 11 and the surgical electrode. The current acquisition unit 142 is used to acquire the current value of the energy signal to obtain a current signal and transmit the current signal to the processing module 11 .

[0067] It is understandable that the voltage acquisition unit 141 may be provided with components for collecting voltage, such as a voltage transformer L1, etc.; the current acquisition unit 142 may be provided with components for collecting current, such as a current transformer L2, etc.; this embodiment does not impose any restrictions on this.

[0068] In a specific implementation, an additional voltage acquisition unit 141 can be connected to the path between the inverter module 13 and the electrode receiver, and the voltage acquisition unit 141 is further connected to the processing module 11, so that the voltage acquisition unit 141 can collect the voltage value of the energy signal flowing through, and transmit it to the processing module 11 in the form of a voltage signal; and the current acquisition unit 142 can be directly set on the path between the inverter module 13 and the electrode interface, and connected in series with the electrode interface and the inverter module 13, so that after the inverter module 13 outputs the energy signal, it can be transmitted to the electrode interface through the current acquisition unit 142, and at the same time, the current acquisition unit 142 can collect the current value of the energy signal flowing through, and transmit it to the processing module 11 in the form of a current signal.

[0069] In this embodiment, a current acquisition unit 142 and a voltage acquisition unit 141 are provided between the inverter module 13 and the electrode interface. The current temperature of the target tissue can be obtained from the collected current and voltage values. Because the current acquisition unit 142 and the voltage acquisition unit 141 can be provided as circuits within the energy host 1, compared to existing methods that require the installation of temperature sensors at the surgical electrodes, this embodiment does not require modifications to the surgical electrodes. Instead, only the acquisition module 14 is added to the energy host 1, resulting in lower costs.

[0070] At the same time, the existing method of using temperature sensors requires high precision, strong anti-interference capabilities, and strict calibration requirements, resulting in relatively expensive temperature sensors. However, this embodiment, through the above-mentioned method of collecting current and voltage values, also ensures high precision and strong anti-interference capabilities, but uses lower-priced components, thus also reducing costs. Secondly, because this embodiment does not require the use of temperature sensors, it can reduce the probability of equipment failure and further improve safety.

[0071] It should also be emphasized that after obtaining the current temperature, the processing module 11 can generate an adjustment signal to the pressure reduction module 12, so that the pressure reduction module 12 adjusts the power level, thereby adjusting the temperature of the target tissue.

[0072] Reference Figure 3 , Figure 3 This is a circuit schematic diagram of the voltage acquisition unit 141 in the second embodiment of the energy host 1 with temperature recognition function proposed in an embodiment of the present utility model.

[0073] like Figure 3 As shown, in order to collect voltage values, in this embodiment, the voltage collection unit 141 includes: a first collection subunit 1412 and a current limiting subunit 1411;

[0074] The current limiting subunit 1411 is respectively connected to the inverter module 13, the surgical electrode and the first acquisition subunit 1412, and the current limiting subunit 1411 is used to limit the current of the energy signal;

[0075] It should be noted that the current limiting subunit 1411 may be a unit composed of components with current limiting function, such as current limiting resistors, etc., and this embodiment does not limit this. Figure 3 As shown, the inverter module 13 may be provided with a high-frequency inverter interface J1, and the energy signal can be transmitted by connecting the high-frequency inverter interface J1 to the electrode interface J2. Since the inverter module 13 outputs an energy signal in the form of AC, the high-frequency inverter interface J1 may have a first output end and a second output end, and the electrode interface J2 may have a first input end and a second input end; the first output end of the high-frequency inverter interface J1 is the first pin of the high-frequency inverter interface J1, the second output end of the high-frequency inverter interface J1 is the second pin of the high-frequency inverter interface J1, the first input end of the electrode interface J2 is the first pin of the electrode interface J2, and the second input end of the electrode interface J2 is the second pin of the electrode interface J2.

[0076] Then, the first pin of the high-frequency inverter interface J1 can be connected to the first pin of the electrode interface J2, and the second pin of the high-frequency inverter interface J1 can be connected to the second pin of the electrode interface J2, thereby realizing the transmission of energy signals in the form of AC.

[0077] Continue as Figure 3 As shown, in this embodiment, the current limiting subunit 1411 may include: a first resistor R1; a first end of the first resistor R1 is connected to the second pin of the electrode interface J2, and a second end of the first resistor R1 is connected to the first acquisition subunit 1412. By using the first resistor R1 as a current limiting resistor, the collected energy signal can be current limited, and the energy signal after current limiting can be transmitted to the first acquisition subunit 1412.

[0078] The first acquisition subunit 1412 is connected to the processing module 11 . The first acquisition subunit 1412 is configured to acquire a voltage value of the current-limited energy signal to obtain a voltage signal, and transmit the voltage signal to the processing module 11 .

[0079] It is understandable that the first acquisition subunit 1412 can be a subunit with a voltage acquisition function, for example, it can include a voltage transformer, etc., which can be set according to actual conditions. This embodiment uses a voltage transformer for illustration. Figure 3 As shown, in this embodiment, the first acquisition subunit 1412 includes: a voltage transformer L1 and a second resistor R2;

[0080] The primary high-voltage end of the voltage transformer L1 can be connected to the second end of the first resistor R1, the primary grounding end of the voltage transformer L1 can be connected to the first pin of the electrode interface J2, the secondary high-voltage end of the voltage transformer L1 can be connected to the first end of the second resistor R2, and the secondary grounding end of the voltage transformer L1 can be connected to the second end of the second resistor R2. The turns ratio of the voltage transformer L1 can be set according to actual conditions. This embodiment uses the secondary current to be equal to the primary current for illustration, that is, the turns ratio is 1:1; at the same time, the first end of the second resistor R2 and the second end of the second resistor R2 can both be connected to the processing module 11.

[0081] Furthermore, in a specific implementation, after the first resistor R1 transmits the current-limited energy signal to the voltage transformer L1, the voltage transformer L1 and the second resistor R2 can collect the voltage value of the current-limited energy signal and transmit the generated voltage signal to the processing module 11 through the two ends of the second resistor R2. If the voltage value of the energy signal at the electrode interface J2 is recorded as V, the resistance value of the first resistor R1 is recorded as R1, the resistance value of the second resistor R2 is recorded as R2, and the voltage value across the second resistor R2 is recorded as V r2 , and then V r2 =(V / R1)×R2, the processing module 11 can calculate the voltage value of the voltage signal according to V r2 The voltage value V of the energy signal is calculated in the above manner.

[0082] Furthermore, considering that the current passing through the voltage transformer L1 is relatively small, and thus the voltage across the second resistor R2 is also relatively small, in order to facilitate subsequent processing, continue as follows Figure 3 As shown, in this embodiment, the voltage acquisition unit 141 further includes: an amplifying subunit 1413;

[0083] The amplifying subunit 1413 is connected to the first collecting subunit 1412 and the processing module 11 respectively. The amplifying subunit 1413 is used to amplify the voltage signal and transmit the amplified voltage signal to the processing module 11 .

[0084] It should be understood that the amplifying subunit 1413 can be a subunit having a signal amplification function. This embodiment uses an operational amplifier for illustration. One end of the amplifying subunit 1413 can be connected to the first and second ends of the second resistor R2, and the other end of the amplifying subunit 1413 can be connected to the processing module 11. The amplifying subunit 1413 can then amplify the voltage signal and transmit the amplified voltage signal to the processing module 11, so that the processing module 11 can determine the voltage value of the energy signal based on the amplified voltage signal.

[0085] Continue as Figure 3As shown, in this embodiment, the above-mentioned amplifying subunit 1413 may include: a first operational amplifier OP1, a third resistor R3 and a fourth resistor R4; wherein the non-inverting input terminal of the first operational amplifier OP1 is the first pin of the first operational amplifier OP1, which can be connected to the first end of the second resistor R2, the ground terminal of the first operational amplifier OP1 is the second pin of the first operational amplifier OP1, which can be connected to the second end of the second resistor R2 and can also be connected to the reference ground, the inverting input terminal of the first operational amplifier OP1 is the third pin of the first operational amplifier OP1, which can be connected to the second end of the third resistor R3 and the first end of the fourth resistor R4 respectively, the first end of the third resistor R3 can be connected to the reference ground, the power supply terminal of the first operational amplifier OP1 is the fifth pin of the first operational amplifier OP1, which can be connected to a 5V power supply, and the output terminal of the first operational amplifier OP1 is the fourth pin of the first operational amplifier OP1, which can be connected to the second end of the fourth resistor R4 and the processing module 11 respectively.

[0086] Furthermore, in a specific implementation, the non-inverting input terminal of the above-mentioned first operational amplifier OP1 can receive the voltage signal output by the second resistor R2, and after amplifying the voltage signal, transmit it to the processing module 11 through the output terminal of the first operational amplifier OP1. The processing module 11 can calculate the voltage value V of the energy signal based on the amplified voltage signal.

[0087] Furthermore, in order to improve the stability of the amplified voltage signal, continue as follows Figure 3 As shown, in this embodiment, the voltage acquisition unit 141 further includes: a first voltage following subunit 1414;

[0088] The first voltage following subunit 1414 is connected to the amplifying subunit 1413 and the processing module 11 respectively. The first voltage following subunit 1414 is used to perform a first voltage following on the amplified voltage signal and transmit the voltage signal after the first voltage following to the processing module 11.

[0089] It should be noted that the first voltage-following subunit 1414 may be a subunit with a voltage-following function, such as a voltage follower. One end of the first voltage-following subunit 1414 may be connected to the output end of the first operational amplifier OP1, and the other end of the first voltage-following subunit 1414 may be connected to the processing module 11. The first voltage-following subunit 1414 may perform voltage-following on the amplified voltage signal and transmit the voltage-followed voltage signal to the processing module 11, so that the processing module 11 may determine the voltage value of the energy signal based on the voltage-followed voltage signal.

[0090] Continue as Figure 3As shown, in this embodiment, the above-mentioned first voltage follower subunit 1414 may include: a second operational amplifier OP2, a fifth resistor R5 to a seventh resistor R7; wherein the non-inverting input terminal of the second operational amplifier OP2 is the first pin of the second operational amplifier OP2, which can be connected to the output terminal of the first operational amplifier OP1, the ground terminal of the second operational amplifier OP2 is the second pin of the second operational amplifier OP2, which can be connected to the second pin of the first operational amplifier OP1, the inverting input terminal of the second operational amplifier OP2 is the third pin of the second operational amplifier OP2, the power supply terminal of the second operational amplifier OP2 is the fifth pin of the second operational amplifier OP2, which can be connected to a 5V power supply, the output terminal of the second operational amplifier OP2 is the fourth pin of the second operational amplifier OP2, which can be respectively connected to the third pin of the second operational amplifier OP2, the first end of the fifth resistor R5 and the first end of the sixth resistor R6, the second end of the fifth resistor R5 is connected to the second pin of the second operational amplifier OP2, the first end of the sixth resistor R6 is respectively connected to the first end of the seventh resistor R7 and the processing module 11, and the second end of the seventh resistor R7 is connected to the second end of the fifth resistor R5.

[0091] Furthermore, in a specific implementation, the non-inverting input terminal of the above-mentioned second operational amplifier OP2 can receive the amplified voltage signal, and perform a first voltage follow on it, and transmit the voltage signal after the first voltage follow to the sixth resistor R6 through the output terminal of the second operational amplifier OP2, and then transmit it to the processing module 11 through the sixth resistor R6, so that the processing module 11 can calculate the voltage value V of the energy signal based on the voltage signal after the first voltage follow.

[0092] Furthermore, in order to improve the stability of the signal, continue as Figure 3 As shown, in this embodiment, the voltage acquisition unit 141 further includes: a first filtering subunit 1415;

[0093] The first filtering subunit 1415 is connected to the amplifying subunit 1413 and the first voltage following subunit 1414 respectively, and the first filtering subunit 1415 is used to filter the amplified voltage signal;

[0094] The first voltage following subunit 1414 is further configured to perform a first voltage following operation on the filtered voltage signal.

[0095] It is understandable that the first filtering subunit 1415 may be a subunit having a filtering function, such as a filter. One end of the first filtering subunit 1415 may be connected to the output of the first operational amplifier OP1, and the other end may be connected to the non-inverting input of the second operational amplifier OP2. The first filtering subunit 1415 may filter the amplified voltage signal and transmit the filtered voltage signal to the first voltage follower subunit 1414 for voltage following, thereby obtaining a first voltage-followed voltage signal.

[0096] Continue as Figure 3 As shown, in this embodiment, the above-mentioned first filtering sub-unit 1415 may include: an eighth resistor R8 and a first capacitor C1; wherein the first end of the eighth resistor R8 is connected to the output end of the first operational amplifier OP1, the second end of the eighth resistor R8 is respectively connected to the non-inverting input end of the second operational amplifier OP2 and the first end of the first capacitor C1, and the second end of the first capacitor C1 is connected to the ground end of the first operational amplifier OP1.

[0097] Furthermore, in a specific implementation, the eighth resistor R8 and the first capacitor C1 can constitute an RC filter circuit, through which the amplified voltage signal can be filtered, and the filtered voltage signal is transmitted to the first voltage follower subunit 1414 for first voltage following, and the obtained voltage signal after first voltage following is transmitted to the processing module 11 (i.e. Figure 3 ADC1), so that the processing module 11 can calculate the voltage value V of the energy signal according to the voltage signal following the first voltage.

[0098] If the voltage across the eighth resistor R8 is denoted as V r8 , the resistance of the fourth resistor R4 is recorded as R4, then V r8 =V r2 ×(1+R4 / R1), if the voltage value of the voltage signal following the first voltage obtained by the processing module 11 is recorded as V adc1 , the resistance of the sixth resistor R6 is recorded as R6, the resistance of the eighth resistor R8 is recorded as R8, and the input and output of the first voltage follower unit are the same, then V adc1 =V r8 ×(R6 / (R6+R8)), the final processing module 11 can calculate the voltage value V of the energy signal through the above three formulas.

[0099] Reference Figure 4 , Figure 4 This is a circuit schematic diagram of the current acquisition unit 142 in the third embodiment of the energy host 1 with temperature recognition function proposed in an embodiment of the present utility model.

[0100] like Figure 4As shown, in this embodiment, in order to obtain the current value of the energy signal, in this embodiment, the current acquisition unit 142 includes: a second acquisition subunit 1421 and a conversion subunit 1422;

[0101] The second acquisition subunit 1421 is connected to the inverter module 13, the surgical electrode and the conversion subunit 1422 respectively. The second acquisition subunit 1421 is used to collect the current value of the energy signal to obtain a current signal, and transmit the current signal to the conversion subunit 1422;

[0102] The conversion subunit 1422 is connected to the processing module 11 , and is configured to perform effective value conversion on the current signal and transmit the converted current signal to the processing module 11 .

[0103] It should be noted that the second acquisition sub-unit 1421 can be a word unit with a current acquisition function, such as a current transformer L2, etc., which can be set according to actual conditions. This embodiment uses the current transformer L2 for illustration. Figure 4 As shown, in this embodiment, the above-mentioned second acquisition subunit 1421 can be connected between the second pin of the high-frequency inverter interface J1 and the second pin of the electrode interface J2, and can collect the current value of the energy signal transmitted from the high-frequency inverter interface J1 to the electrode interface J2, and transmit it to the conversion subunit 1422.

[0104] Specifically, the second acquisition subunit 1421 may include: a current transformer L2, tenth to thirteenth resistors R10 to R13, a second capacitor C2, and a third capacitor C3; wherein the first primary end of the current transformer L2 is connected to the second pin of the high-frequency inverter interface J1, the second primary end of the current transformer L2 is connected to the second pin of the electrode interface J2, the first secondary end of the current transformer L2 is connected to the second end of the ninth resistor R9, the second secondary end of the current transformer L2 is connected to the first end of the ninth resistor R9, the first end of the ninth resistor R9 is connected to the conversion subunit 1422, the second end of the ninth resistor R9 is connected to the first end of the second capacitor C2, the first end of the tenth resistor R10, the first end of the eleventh resistor R11, and the conversion subunit 1422, the second end of the second capacitor C2 is connected to the second end of the tenth resistor R10 and then to the reference ground, the second end of the eleventh resistor R11 is connected to the 5V power supply and the first end of the third capacitor C3, respectively, and the second end of the third capacitor C3 is connected to the reference ground.

[0105] The turns ratio of the current transformer L2 can be set according to actual conditions. In this embodiment, 50:1 is used for illustration. If the current value of the energy signal between the high-frequency inverter interface J1 and the electrode interface J2 is recorded as I, the current flowing through the ninth resistor R9 is I / 50. If the resistance value of the ninth resistor R9 is recorded as R9, the voltage across the ninth resistor R9 is recorded as V. r9 , then V r9 =(I*R9) / 50, if the resistance of the tenth resistor R10 is recorded as R 10 , the resistance of the eleventh resistor R11 is denoted as R 11 , the voltage value of the current signal received by the conversion submodule is recorded as V 转 , after the voltage is divided by the tenth resistor R10 and the eleventh resistor R11, V 转 =V r9 *(R 10 / (R 10 +R 11 )).

[0106] In a specific implementation, the current transformer L2 can collect the current value of the energy signal, and transmit the obtained current signal to the conversion submodule through the two ends of the ninth resistor R9.

[0107] It is understandable that since the energy signal is in the form of AC, the current signal collected is also in the form of AC. In order to facilitate subsequent calculations, the above-mentioned conversion sub-unit 1422 can convert the AC current signal into an effective value and transmit the obtained effective value to the processing module 11 as the converted current signal.

[0108] The above-mentioned conversion subunit 1422 can be any subunit with effective value conversion. This embodiment uses an RMS-DC converter for illustration. Figure 4 As shown, in this embodiment, the above-mentioned conversion subunit 1422 may include: a converter, a fourth capacitor C4 and a fifth capacitor C5; wherein the ground end of the converter is the first pin of the converter, which can be connected to the reference ground, the first input end of the converter is the second pin of the converter, which can be connected to the first end of the ninth resistor R9, the second input end of the converter is the third pin of the converter, which can be connected to the second end of the ninth resistor R9, the output end of the converter is the fifth pin of the converter, which can be connected to the second end of the fifth capacitor C5 and the processing module 11, the sixth pin of the converter can be connected to the first end of the fifth capacitor C5 and the reference ground, the seventh pin of the converter can be connected to the second end of the fourth capacitor C4 and the 5V power supply, and the eighth pin of the converter can be connected to the first end of the fourth capacitor C4 and the reference ground.

[0109] Furthermore, in a specific implementation, after the first input terminal and the second input terminal of the converter receive the current signal, they perform effective value conversion on it, and transmit the converted current signal to the processing module 11 through the output terminal of the converter, so that the processing module 11 can obtain the current value I of the energy signal according to the corresponding conversion relationship and the above formula.

[0110] Furthermore, in order to improve the stability of the signal, continue as Figure 4 As shown, in this embodiment, the current acquisition unit 142 further includes: a second voltage following subunit 1423 and a third voltage following subunit 1424;

[0111] The second voltage follower subunit 1423 is connected to the conversion subunit 1422 and the third voltage follower subunit 1424 respectively, and the second voltage follower subunit 1423 is used to perform a second voltage following on the converted current signal and transmit the current signal after the second voltage following to the third voltage follower subunit 1424;

[0112] The third voltage following subunit 1424 is connected to the processing module 11 , and is configured to perform a third voltage following operation on the current signal after the second voltage following operation, and transmit the current signal after the third voltage following operation to the processing module 11 .

[0113] It should be understood that the above-mentioned second voltage following subunit 1423 and the third voltage following subunit 1424 can both be subunits with voltage following functions. In this embodiment, the above-mentioned second voltage following subunit 1423 can perform a first voltage following on the converted current signal, and the third voltage following subunit 1424 can perform a second voltage following on the converted current signal, and then transmit it to the processing module 11.

[0114] Continue as Figure 4 As shown, the first voltage follower subunit 1414 may include: a third operational amplifier OP3; wherein the non-inverting input terminal of the third operational amplifier OP3 is the first pin of the third operational amplifier OP3, which can be connected to the output terminal of the converter (ie Figure 4 OUT) is connected, the ground terminal of the third operational amplifier OP3 is the second pin of the third operational amplifier OP3, which can be connected to the reference ground, the inverting input terminal of the third operational amplifier OP3 is the third pin of the third operational amplifier OP3, the power supply terminal of the third operational amplifier OP3 is the fifth pin of the third operational amplifier OP3, which can be connected to a 5V power supply, and the output terminal of the third operational amplifier OP3 is the fourth pin of the third operational amplifier OP3, which can be connected to the third pin of the third operational amplifier OP3 and the third voltage follower sub-unit 1424 respectively;

[0115] The third voltage follower subunit 1424 may include: a fourth operational amplifier OP4, a twelfth resistor R12 to a fourteenth resistor R14; wherein the non-inverting input terminal of the fourth operational amplifier OP4 is the first pin of the fourth operational amplifier OP4, which can be connected to the output terminal of the third operational amplifier OP3, the ground terminal of the fourth operational amplifier OP4 is the second pin of the fourth operational amplifier OP4, which can be connected to the ground terminal of the third operational amplifier OP3, the inverting input terminal of the fourth operational amplifier OP4 is the third pin of the fourth operational amplifier OP4, the power supply terminal of the fourth operational amplifier OP4 is the fifth pin of the fourth operational amplifier OP4, which can be connected to a 5V power supply, the output terminal of the fourth operational amplifier OP4 is the fourth pin of the fourth operational amplifier OP4, which can be respectively connected to the third pin of the fourth operational amplifier OP4, the first end of the twelfth resistor R12 and the first end of the thirteenth resistor R13, the second end of the twelfth resistor R12 is connected to the ground terminal of the fourth operational amplifier OP4, the second end of the thirteenth resistor R13 is respectively connected to the first end of the fourteenth resistor R14 and the processing module 11 (i.e. Figure 4 ADC2), a second end of the fourteenth resistor R14 is connected to the second end of the twelfth resistor R12.

[0116] Furthermore, in a specific implementation, after the output terminal of the third operational amplifier OP3 transmits the second voltage-followed current signal to the non-inverting input terminal of the fourth operational amplifier OP4, the fourth operational amplifier OP4 performs voltage following, and transmits the third voltage-followed current signal to the thirteenth resistor R13 through the output terminal of the fourth operational amplifier OP4, and then transmits it to the processing module 11 through the thirteenth resistor R13. If the voltage value of the third voltage-followed current signal is recorded as V adc2 , the resistance of the thirteenth resistor R13 is recorded as R 13 , the resistance of the fourteenth resistor R14 is denoted as R 14 , due to the voltage following, the voltage received by both ends of the twelfth resistor R12 is the above V 转 , then V adc2 =V 转 ×(R 13 / (R 13 +R 14 )), the final processing module 11 can calculate the current value I of the energy signal according to the above two formulas.

[0117] Furthermore, in order to improve the stability of the signal, continue as Figure 4 As shown, in this embodiment, the current acquisition unit 142 further includes: a second filtering subunit 1425;

[0118] The second filtering subunit 1425 is connected to the second voltage following subunit 1423 and the third voltage following subunit 1424 respectively, and the second filtering unit is used to filter the current signal after the second voltage following;

[0119] The third voltage following subunit 1424 is further configured to perform a third voltage following operation on the filtered current signal.

[0120] It is understandable that the second filtering subunit 1425 can also be a subunit with a filtering function. This embodiment still uses an RC filtering circuit for illustration, that is, Figure 4 As shown, the second filtering sub-unit 1425 may include: a fifteenth resistor R15 and a sixth capacitor C6;

[0121] A first end of the fifteenth resistor R15 is connected to the output end of the third operational amplifier OP3, a second end of the fifteenth resistor R15 is respectively connected to the first end of the sixth capacitor C6 and the non-inverting input end of the fourth operational amplifier OP4, and a second end of the sixth capacitor C6 is connected to the ground end of the third operational amplifier OP3.

[0122] Furthermore, in a specific implementation, the RC filter circuit formed by the above-mentioned second filtering sub-unit 1425 can filter the current signal after the second voltage following output from the output end of the third operational amplifier OP3 and transmit it to the non-inverting input end of the fourth operational amplifier OP4 for third voltage following to obtain the current signal after the third voltage following.

[0123] At the same time, since the resistance of the fifteenth resistor R15 is relatively small, the subsequent processing module 11 can ignore the influence of the resistance when calculating the current value I of the energy signal.

[0124] To achieve the above-mentioned purpose, the present invention also proposes a plasma surgical device, which includes an energy host 1 with a temperature recognition function as described above. The specific structure of the energy host 1 refers to the above-mentioned embodiment. Since the present plasma surgical device adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

[0125] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An energy host with temperature recognition function, characterized in that: The energy host includes: an acquisition module, a processing module and an inverter module; The inverter module is connected to the surgical electrode, and is used to transmit the generated energy signal to the surgical electrode, so that the surgical electrode generates an electric field at the target tissue; The acquisition module is respectively connected to the inverter module, the processing module and the surgical electrode, and is used to acquire the voltage value of the energy signal to obtain a voltage signal, and to acquire the current value of the energy signal to obtain a current signal; The processing module is used to receive the voltage signal and the current signal to obtain impedance information of the target tissue, and the impedance information is used to determine the current temperature of the target tissue.

2. The energy host according to claim 1, characterized in that: The acquisition module includes: a voltage acquisition unit and a current acquisition unit; The voltage acquisition unit is connected to the inverter module, the processing module and the surgical electrode respectively, and is used to acquire the voltage value of the energy signal to obtain a voltage signal, and transmit the voltage signal to the processing module; The current acquisition unit is respectively connected to the inverter module, the processing module and the surgical electrode. The current acquisition unit is used to collect the current value of the energy signal to obtain a current signal, and transmit the current signal to the processing module.

3. The energy host according to claim 2, characterized in that: The voltage acquisition unit includes: a first acquisition subunit and a current limiting subunit; The current limiting subunit is respectively connected to the inverter module, the surgical electrode and the first acquisition subunit, and the current limiting subunit is used to limit the current of the energy signal; The first acquisition subunit is connected to the processing module, and is used to acquire the voltage value of the energy signal after current limiting to obtain a voltage signal, and transmit the voltage signal to the processing module.

4. The energy host according to claim 3, characterized in that: The voltage acquisition unit further includes: an amplifying subunit; The amplifying subunit is connected to the first collecting subunit and the processing module respectively. The amplifying subunit is used to amplify the voltage signal and transmit the amplified voltage signal to the processing module.

5. The energy host according to claim 4, characterized in that: The voltage acquisition unit further includes: a first voltage following subunit; The first voltage follower subunit is connected to the amplifying subunit and the processing module respectively. The first voltage follower subunit is used to perform a first voltage following on the amplified voltage signal and transmit the voltage signal after the first voltage following to the processing module.

6. The energy host according to claim 5, characterized in that: The voltage acquisition unit further includes: a first filtering subunit; The first filtering subunit is connected to the amplifying subunit and the first voltage following subunit respectively, and the first filtering subunit is used to filter the amplified voltage signal; The first voltage following subunit is further configured to perform a first voltage following operation on the filtered voltage signal.

7. The energy host according to any one of claims 2 to 6, characterized in that: The current acquisition unit includes: a second acquisition subunit and a conversion subunit; The second acquisition subunit is connected to the inverter module, the surgical electrode and the conversion subunit respectively, and is used to collect the current value of the energy signal to obtain a current signal, and transmit the current signal to the conversion subunit; The conversion subunit is connected to the processing module, and is used to perform effective value conversion on the current signal and transmit the converted current signal to the processing module.

8. The energy host according to claim 7, characterized in that: The current acquisition unit further includes: a second voltage follower subunit and a third voltage follower subunit; The second voltage follower subunit is connected to the conversion subunit and the third voltage follower subunit respectively, and the second voltage follower subunit is used to perform a second voltage follow on the converted current signal and transmit the current signal after the second voltage follow to the third voltage follower subunit; The third voltage follower subunit is connected to the processing module, and is used to perform a third voltage follow on the current signal after the second voltage follower, and transmit the current signal after the third voltage follower to the processing module.

9. The energy host according to claim 8, characterized in that: The current acquisition unit further includes: a second filtering subunit; The second filtering subunit is connected to the second voltage following subunit and the third voltage following subunit respectively, and the second filtering subunit is used to filter the current signal after the second voltage following; The third voltage follower subunit is further configured to perform a third voltage follow on the filtered current signal.

10. A plasma surgical device, characterized in that: The plasma surgery device comprises a surgical electrode and an energy host according to any one of claims 1 to 9.

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