Ultrasonic surgical apparatus

Abstract

The utility model relates to ultrasonic surgical equipment, the ultrasonic surgical equipment comprises a host and a cutter connected to the host, the cutter is provided with an impedance identification contact, an impedance identification module, a data processing module and a main control module are arranged in the host, the impedance identification module outputs an excitation signal to a measured target through the impedance identification contact, and the data processing module outputs the excitation signal to the measured target through the main control module. The data processing module is used for determining a tissue type according to the received impedance data and outputting a type identification electric signal corresponding to the tissue type, and the main control module is used for adjusting ultrasonic energy output to the cutter according to the type identification electric signal. According to the ultrasonic operation equipment provided by the embodiment of the invention, the tissue type corresponding to the measured target is acquired in real time, the output is adjusted, and the adjustment accuracy of the output energy of the ultrasonic operation equipment is improved.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to an ultrasonic surgical device. Background Technology

[0002] During surgery, the ultrasonic energy output by the ultrasonic surgical device vaporizes water and denatures proteins within tissue cells, thereby achieving the purpose of cutting tissue and clotting blood. The required ultrasonic energy varies depending on the type of tissue, therefore the energy output of the ultrasonic surgical device must be adjusted accordingly.

[0003] Currently, ATT (Adaptive Tissue Technology) is commonly used to adjust the energy output of the ultrasonic surgical device according to the changes in resistance of human tissue in the jaws of the device. However, ATT technology requires adjusting the output energy according to the changes in resistance during the energy output process, which is easily affected by external factors and has poor adjustment accuracy. Utility Model Content

[0004] Therefore, it is necessary to provide an ultrasonic surgical device that can improve the accuracy of adjusting the output energy of the ultrasonic surgical device.

[0005] In a first aspect, this application provides an ultrasonic surgical device, including a main unit and a blade connected to the main unit;

[0006] The cutting tool is equipped with impedance recognition contacts, and the main unit contains an impedance recognition module, a data processing module, and a main control module; among them,

[0007] The impedance identification module is connected to the impedance identification contact, which is used to output an excitation signal to the target under test through the impedance identification contact, receive the impedance signal fed back by the target under test, and output the corresponding impedance data according to the received impedance signal.

[0008] The data processing module is connected to the impedance identification module, which is used to receive impedance data, determine the tissue type based on the impedance data, and output a type identification electrical signal corresponding to the tissue type.

[0009] The main control module is connected to the data processing module and the cutting tool respectively, and is used to generate the corresponding energy signal and output it to the cutting tool according to the type of electrical signal.

[0010] In one embodiment, the impedance identification module includes:

[0011] The signal source, connected to the impedance identification contact, is used to output the excitation signal;

[0012] The sampling unit, connected to the impedance identification contact, is used to receive impedance signals;

[0013] The processing unit is connected to the sampling unit and the data processing module respectively. It is used to determine the impedance data based on the impedance signal and output the impedance data to the data processing module.

[0014] In one embodiment, the signal source is a frequency generator, which outputs an excitation signal to the impedance identification contact.

[0015] In one embodiment, the sampling unit is a 12-bit analog-to-digital converter (ADC) that receives the impedance signal and converts the received impedance signal into a digital signal.

[0016] In one embodiment, the processing unit is a signal processor, which performs a discrete Fourier transform on the digital signal and outputs impedance data.

[0017] In one embodiment, the impedance identification module includes an impedance conversion chip, which integrates a frequency generator, an analog-to-digital converter, and a signal processor. The frequency generator outputs an excitation signal to the impedance identification contact, the analog-to-digital converter receives the impedance signal and converts the received impedance signal into a digital signal, and the signal processor performs a discrete Fourier transform on the digital signal and outputs the impedance data.

[0018] In one embodiment, the impedance identification contact is a conductor.

[0019] In one embodiment, the impedance identification contact includes a first contact and a second contact; the cutter includes a first blade and a second blade that can be opened and closed relative to each other, and the target to be measured is held by the first blade and the second blade;

[0020] The first blade is equipped with a first contact, which is connected to a signal source;

[0021] The second blade is equipped with a second contact, which is connected to the sampling unit.

[0022] In one embodiment, the ultrasound surgical device further includes an energy output module and a transducer; wherein,

[0023] The energy output module is located in the housing of the main unit and connected to the main control module, and is used to output the energy signal generated by the main control module;

[0024] One end of the transducer is connected to the energy output module, and the other end is connected to the cutting tool. It is used to convert the energy signal output by the energy output module into ultrasonic energy and then output it to the cutting tool.

[0025] In one embodiment, the ultrasound surgical device further includes a display device connected to the energy output module, the display device being connected to display the energy signal output by the host energy output module.

[0026] The aforementioned ultrasonic surgical device includes a main unit and a blade connected to the main unit. The blade is equipped with impedance identification contacts. The main unit contains an impedance identification module, a data processing module, and a main control module. The impedance identification module is connected to both the impedance identification contacts and the data processing module. The data processing module is connected to the main control module, and the main control module is connected to the blade. The impedance identification module outputs an excitation signal to the target being tested through the impedance identification contacts and receives the impedance signal fed back from the target. Based on the received impedance signal, it outputs corresponding impedance data to the data processing module. The data processing module determines the tissue type based on the impedance data and outputs a type identifier corresponding to the tissue type. The electrical signal is sent to the main control module, which generates a corresponding energy signal based on the type of the electrical signal and outputs it to the cutting tool. This application incorporates an impedance identification contact, an impedance identification module, and a data processing module. The data processing module outputs a type identification electrical signal corresponding to the tissue type based on the received impedance data of the target being measured. This allows the main control module to more accurately adjust the output ultrasonic energy. Compared to traditional technologies that require adjusting the output energy based on resistance changes during energy output, the main control module acquires the type identification electrical signal corresponding to the tissue type in real time and adjusts the output, improving the accuracy of energy adjustment for ultrasonic surgical equipment. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a structural block diagram of an ultrasonic surgical device in one embodiment;

[0029] Figure 2 This is a structural block diagram of the internal impedance identification module of an ultrasonic surgical device in one embodiment;

[0030] Figure 3 This is a schematic diagram of the tool structure in one embodiment;

[0031] Figure 4 This is a schematic diagram of the complex impedance model in one embodiment;

[0032] Figure 5 This is a structural block diagram of an ultrasonic surgical device in another embodiment.

[0033] Explanation of reference numerals in the attached figures:

[0034] Main unit 100, cutting tool 110, impedance identification contact 120, impedance identification module 130, data processing module 140, main control module 150, energy output module 160, transducer 170, display device 180, signal source 132, sampling unit 134, processing unit 136, first blade 310, second blade 320, first contact 122, second contact 124. Detailed Implementation

[0035] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0037] It is understood that the terms "first," "second," etc., used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the scope of this application, a first blade may be referred to as a second blade, and similarly, a second blade may be referred to as a first blade. Both the first blade and the second blade are blades, but they are not the same blade.

[0038] It is understood that the term "connection" in the following embodiments should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., have electrical signal or data transmission with each other.

[0039] It is understandable that "at least one" refers to one or more, and "multiple" refers to two or more. "At least a part of an element" refers to part or all of an element.

[0040] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising / including” or “having,” etc., specify the presence of the stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. Meanwhile, the term “and / or” as used in this specification includes any and all combinations of the associated listed items.

[0041] In current medical surgeries, ultrasound surgical equipment is widely used in soft tissue cutting and coagulation procedures due to its advantages such as non-invasiveness, high precision, and fast recovery. It should be noted that the principle of ultrasound surgical equipment is to output ultrasound energy to human tissue, causing water vaporization, cell membrane rupture, and protein denaturation within tissue cells. These effects work together to coagulate or vaporize the tissue, thereby achieving the cutting and hemostasis effect.

[0042] However, existing ultrasound surgical equipment still faces certain challenges in identifying different types of human tissue. Due to the differences in impedance characteristics among different tissues, the energy output of the ultrasound surgical equipment needs to be adjusted during surgery. Currently, ultrasound surgical equipment using ATT technology is susceptible to external influences, leading to inaccurate adjustments. Furthermore, the amount of tissue being clamped also affects resistance sensing, reducing adjustment accuracy and consequently lowering surgical outcomes.

[0043] The ultrasonic surgical device provided in this application embodiment is equipped with an impedance identification contact, an impedance identification module, and a data processing module. The data processing module outputs a type identification electrical signal corresponding to the tissue type based on the received impedance data of the target being measured. This allows the main control module to more accurately adjust the output ultrasonic energy. Compared to traditional technologies that require adjusting the output energy based on resistance changes during energy output, the main control module acquires the type identification electrical signal corresponding to the tissue type in real time and adjusts the output, thereby improving the accuracy of adjusting the output energy of the ultrasonic surgical device.

[0044] In one exemplary embodiment, such as Figure 1 As shown, this application provides an ultrasonic surgical device, including a main unit 100 and a blade 110 connected to the main unit;

[0045] The cutting tool 110 is equipped with an impedance identification contact 120, and the main unit 100 contains an impedance identification module 130, a data processing module 140, and a main control module 150; wherein,

[0046] The impedance identification module 130 is connected to the impedance identification contact 120. The impedance identification module is used to output an excitation signal to the target under test through the impedance identification contact 120, receive the impedance signal fed back by the target under test, and output the corresponding impedance data according to the received impedance signal.

[0047] The data processing module 140 is connected to the impedance identification module 130 and is used to receive impedance data, determine the tissue type based on the impedance data, and output a type identification electrical signal corresponding to the tissue type.

[0048] The main control module 150 is connected to the data processing module 140 and the tool 110 respectively, and is used to generate a corresponding energy signal based on the type of electrical signal and output it to the tool 110.

[0049] The shape of the cutting tool 110 can be set according to the actual situation, and is not limited in this embodiment.

[0050] Specifically, the target being tested is human tissue. The cutting tool 110 contacts the human tissue, and the main control module 150 outputs ultrasonic energy to the human tissue through the cutting tool 110 to coagulate or vaporize the human tissue, thereby achieving the effect of cutting and stopping bleeding. The impedance identification contact 120 on the cutting tool 110 contacts the human tissue, and the impedance identification module 130 outputs an excitation signal. The excitation signal is transmitted to the human tissue through the impedance identification contact 120. The result received by the impedance identification module 130 is the result of the excitation signal actually acting on the human tissue, that is, the impedance signal. The impedance identification module 130 processes the impedance signal and outputs impedance data to the data processing module 140. The data processing module 140 determines the tissue type based on the received impedance data and outputs a type identification electrical signal corresponding to the tissue type to the main control module 150. The main control module 150 adjusts the ultrasonic energy output to the cutting tool 110 according to the type identification electrical signal, thereby improving the accuracy of adjusting the output energy of the ultrasonic surgical equipment and enhancing surgical precision, avoiding accidental damage to important organs and blood vessels, and reducing surgical risks.

[0051] The aforementioned ultrasonic surgical device is equipped with an impedance identification contact 120, an impedance identification module 130, and a data processing module 140. The data processing module 140 acquires the impedance data corresponding to the target being measured transmitted by the impedance identification module 130 and outputs a type identification electrical signal corresponding to the tissue type, so that the main control module 150 can more accurately adjust the output ultrasonic energy and improve the accuracy of adjusting the output energy of the ultrasonic surgical device.

[0052] In one embodiment, such as Figure 2 As shown, the impedance identification module 130 includes:

[0053] Signal source 132 is connected to impedance identification contact 120 and is used to output excitation signal;

[0054] Sampling unit 134 is connected to impedance identification contact 120 and is used to receive impedance signals;

[0055] The processing unit 136 is connected to the sampling unit 134 and the data processing module 140 respectively, and is used to determine the impedance data based on the impedance signal and output the impedance data to the data processing module 140.

[0056] Specifically, signal source 132 outputs an excitation signal, which is transmitted to human tissue through impedance identification contact 120. Sampling unit 134 samples the impedance signal fed back by human tissue and outputs the sampled impedance signal to processing unit 136. Processing unit 136 processes the impedance signal and outputs impedance data to data processing module 140. The impedance data includes data used to characterize the impedance characteristics of the corresponding human tissue. It can be understood that the processing unit 136 can set the method of processing the impedance signal according to the actual situation, as long as it can obtain the data used to characterize the impedance characteristics of the corresponding human tissue.

[0057] For example, the ultrasonic surgical device also includes a handle with a button that the user can trigger to instruct the signal source 132 to output an excitation signal, wherein the excitation signal can be an electrical signal with a peak value of 2V and an output frequency of 30kHz.

[0058] In this embodiment, the impedance identification module 130 includes a signal source 132 connected to the impedance identification contact 120, a sampling unit 134 connected to the impedance identification contact 120, and a processing unit 136 connected to the sampling unit 134 and the data processing module 140 respectively. This enables the output of the excitation signal and the reception and processing of the impedance signal, facilitating real-time identification of tissue types. It eliminates the need for the user to manually adjust the ultrasonic energy output of the ultrasonic surgical device, thereby achieving automatic adjustment of the ultrasonic energy while improving the accuracy of adjusting the output energy of the ultrasonic surgical device.

[0059] In one embodiment, the signal source 132 is a frequency generator, which outputs an excitation signal to the impedance identification contact 120.

[0060] The frequency and magnitude of the excitation signal output by the frequency generator can be set according to the actual situation, and are not limited in this embodiment. The model of the frequency generator can be set according to the actual situation. It can be understood that as long as it can meet the function of outputting the excitation signal, it is acceptable.

[0061] Specifically, human tissue can be viewed as a complex impedance model. By using a frequency generator to apply an excitation signal to the unknown impedance, it is easier to complete the impedance measurement and then identify the tissue type in real time.

[0062] It is understood that the signal source 132 described above can also take other forms, and is not limited to the forms already mentioned in the above embodiments, as long as it can perform the function of outputting excitation signals.

[0063] In one embodiment, the sampling unit 134 is a 12-bit analog-to-digital converter (ADC) that receives impedance signals and converts the received impedance signals into digital signals.

[0064] Specifically, the 12-bit analog-to-digital converter can provide 4096 discrete digital output values. This resolution allows it to accurately represent the details of analog signals, making it suitable for applications requiring high-precision measurements and improving the accuracy of subsequent tissue type identification. It should be noted that the sampling rate of the 12-bit analog-to-digital converter can be 250kSPS.

[0065] It is understood that the sampling unit 134 described above can also take other forms, and is not limited to the forms mentioned in the above embodiments, as long as it can perform the function of sampling impedance data.

[0066] In one embodiment, the processing unit 136 is a signal processor (DSP) used to perform a Discrete Fourier Transform (DFT) on the digital signal converted by the sampling unit 120 and output impedance data.

[0067] Specifically, the signal processor performs a discrete Fourier transform on the impedance signal fed back from the human tissue (external impedance) to obtain the real and imaginary data corresponding to the impedance signal. The signal processor can also calculate the magnitude and phase of the external impedance based on the real and imaginary data, that is, the data used to characterize the impedance characteristics of the human tissue.

[0068] It is understood that the processing unit 136 described above can also take other forms, and is not limited to the forms mentioned in the above embodiments, as long as it can perform the function of processing the impedance signal to obtain impedance data.

[0069] In one embodiment, the impedance identification module 130 includes an impedance conversion chip, which integrates a frequency generator, an analog-to-digital converter, and a signal processor. The frequency generator outputs an excitation signal to the impedance identification contact, the analog-to-digital converter receives the impedance signal and converts the received impedance signal into a digital signal, and the signal processor performs a discrete Fourier transform on the digital signal and outputs the impedance data.

[0070] Specifically, the impedance identification module 130 includes an impedance conversion chip of model AD5934, which integrates a frequency generator and a 12-bit analog-to-digital converter with a sampling rate of 250kSPS. The external impedance is excited by the excitation signal generated by the frequency generator, and the impedance signal fed back by the external impedance is sampled by the analog-to-digital converter. Then, the discrete Fourier transform is performed by the signal processor, which can accurately measure the impedance characteristics of the tissue and facilitate the subsequent identification of the tissue type.

[0071] For example, the host 100 can be a computer device, and the impedance identification module 130, data processing module 140 and main control module 150 are all located in the computer device. It should be noted that the data processing module 140 includes an algorithm model, which can be trained and identified using a machine learning algorithm, specifically a support vector machine (SVM). The algorithm model is trained with a large amount of impedance data corresponding to known tissue types to establish a mapping relationship between impedance characteristics and tissue types. During the operation, the biological complex impedance data collected in real time is input into the algorithm model to obtain the tissue type identification result.

[0072] In one embodiment, the impedance identification contact 120 is a conductor.

[0073] Specifically, the impedance identification contact 120 is a conductor, and the impedance identification contact 120 is connected to the signal source 132 and the sampling unit 134 respectively through wires.

[0074] In one embodiment, such as Figure 3 As shown, the impedance identification contact 120 includes a first contact 122 and a second contact 124; the cutter includes a first blade 310 and a second blade 320 that can be opened and closed relative to each other, and the target to be measured is clamped by the first blade 310 and the second blade 320.

[0075] The first blade 310 is provided with a first contact 122, which is connected to the signal source 132;

[0076] The second blade 320 is provided with a second contact 124, which is connected to the sampling unit 134.

[0077] The shapes of the first contact 122 and the second contact 124 can be set according to the actual situation. For example, both the first contact 122 and the second contact 124 can be set to circles, or the first contact 122 can be set to circles and the second contact 124 can be set to the shape of the second blade 320.

[0078] Specifically, Figure 3An exemplary schematic diagram of a cutting tool 110 is shown, wherein both the first contact 122 and the second contact 124 are circular. The first contact 122 is connected to the output terminal of the impedance identification module 130, i.e., the signal source 132, via a wire, and the second contact 124 is connected to the input terminal of the impedance identification module 130, i.e., the sampling unit 134, via a wire.

[0079] For example, human tissue can be viewed as such Figure 4 The complex impedance model shown represents the dermis (resistance R1) and the stratum corneum (resistance R2 and capacitance C). A first contact 122 and a second contact 124 are connected to the two ends of the complex impedance model to form a circuit. When the user triggers a button, the first blade 310 and the second blade 320 tighten to clamp the human tissue. The signal source 132 outputs an excitation signal, which is output to one end of the complex impedance model through the first contact 122. The other end of the complex impedance model is connected to the second contact 124 and outputs an impedance signal to the sampling unit 134. The sampling unit 134 outputs the impedance signal to the processing unit 136. The processing unit 136 processes the impedance signal and outputs impedance data to the data processing module 140. The algorithm model built into the data processing module 140 determines the tissue type based on the impedance data and outputs a type identification electrical signal corresponding to the tissue type to the main control module 150. The main control module 150 adjusts the ultrasonic energy output to the blades based on the type identification electrical signal to improve surgical efficiency.

[0080] To facilitate understanding by those skilled in the art, the specific workflow of an ultrasonic surgical device is illustrated below with a concrete example:

[0081] The ultrasonic surgical device has a button on its handle for controlling the output excitation signal. When the user triggers the button, the signal source 132 outputs an excitation signal to the first contact 122. The excitation signal is transmitted to the human tissue through the first contact 122, exciting the human tissue to form a complex impedance. The sampling unit 134 samples the impedance signal fed back by the human tissue through the second contact 124 and outputs the impedance signal to the processing unit 136. The processing unit 136 performs a discrete Fourier transform on the impedance signal to obtain the real and imaginary data corresponding to the impedance signal. The processing unit 136 can also calculate the magnitude and phase of the external impedance, i.e., the impedance data, based on the real and imaginary data, and output the impedance data to the data processing module 140. The data processing module 140 determines the tissue type based on the received impedance data and outputs a type identification electrical signal corresponding to the tissue type to the main control module 150. The main control module 150 adjusts the ultrasonic energy output to the blade according to the type identification electrical signal. The output can be automatically adjusted without manual adjustment by the user, improving surgical efficiency and the accuracy of adjusting the output energy of the ultrasonic surgical device.

[0082] In one embodiment, such as Figure 5 As shown, the ultrasound surgical device also includes an energy output module 160 and a transducer 170; wherein,

[0083] The energy output module 160 is disposed in the housing of the host 100 and connected to the main control module 150, and is used to output the energy signal generated by the main control module 150;

[0084] One end of the transducer 170 is connected to the energy output module 160, and the other end is connected to the cutter 110. It is used to convert the energy signal output by the energy output module 160 into ultrasonic energy and then output it to the cutter 110.

[0085] Specifically, the energy output module 160 outputs electrical energy to the transducer 170. When electrical energy is connected to the transducer 170, the transducer 170 generates vibrations at a corresponding frequency, which in turn drives the cutter 110 to perform ultrasonic vibrations, that is, outputting ultrasonic energy that acts on human tissue to achieve a cutting and hemostatic effect. It should be noted that the type of energy output module 160 can be set according to actual needs, as long as it can meet the function of outputting the energy signal generated by the main control module 150. For example, the energy output module 160 can be an interface for outputting energy signals.

[0086] For example, the handle of the ultrasonic surgical device is equipped with buttons. Users can control the output of the energy output module 160 and the output of the signal source 132 by using the buttons. It should be noted that the above two controls can be achieved by the same button or by setting different buttons.

[0087] In one embodiment, such as Figure 5 As shown, the ultrasound surgical device also includes a display device 180 connected to the energy output module 160, which is used to display the energy signal output by the energy output module 160.

[0088] The type of display device 180 can be set according to the actual situation. In this embodiment, the display device 180 is a display screen as an example.

[0089] Specifically, the display device 180 is used to display the magnitude of the energy signal output by the energy output module 160 in real time, as well as the identification results (including tissue type) for the user to view.

[0090] It is understood that the above-mentioned display device 180 may also take other forms, not limited to those mentioned in the above embodiments, as long as it can achieve the function of displaying recognition results in real time.

[0091] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative descriptions of the above terms do not necessarily refer to the same embodiments or examples.

[0092] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0093] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. An ultrasonic surgical device, comprising a main unit and a cutting tool connected to the main unit; characterized in that, The cutting tool is equipped with an impedance identification contact, and the main unit contains an impedance identification module, a data processing module, and a main control module; wherein... The impedance identification module is connected to the impedance identification contact and is used to output an excitation signal to the target under test through the impedance identification contact, receive the impedance signal fed back by the target under test, and output corresponding impedance data according to the received impedance signal. The data processing module is connected to the impedance identification module and is used to receive the impedance data, determine the tissue type based on the impedance data, and output a type identification electrical signal corresponding to the tissue type. The main control module is connected to the data processing module and the cutting tool respectively, and is used to generate a corresponding energy signal based on the type of electrical signal and output it to the cutting tool.

2. The ultrasonic surgical apparatus according to claim 1, characterized by The impedance identification module includes: A signal source, connected to the impedance identification contact, is used to output the excitation signal; A sampling unit, connected to the impedance identification contact, is used to receive the impedance signal; The processing unit is connected to the sampling unit and the data processing module respectively, and is used to determine the impedance data according to the impedance signal and output the impedance data to the data processing module.

3. The ultrasonic surgical device according to claim 2, characterized in that, The signal source is a frequency generator, which outputs an excitation signal to the impedance identification contact.

4. The ultrasonic surgical apparatus according to claim 2, characterized by The sampling unit is a 12-bit analog-to-digital converter, which receives the impedance signal and converts the received impedance signal into a digital signal.

5. Ultrasonic surgical apparatus according to claim 4, wherein The processing unit is a signal processor, which performs a discrete Fourier transform on the digital signal and outputs the impedance data.

6. The ultrasonic surgical apparatus according to claim 1, characterized by The impedance identification module includes an impedance conversion chip, which integrates a frequency generator, an analog-to-digital converter, and a signal processor. The frequency generator outputs an excitation signal to the impedance identification contact, the analog-to-digital converter receives the impedance signal and converts the received impedance signal into a digital signal, and the signal processor performs a discrete Fourier transform on the digital signal and outputs the impedance data.

7. The ultrasonic surgical device according to claim 1, characterized in that, The impedance identification contact is a conductor.

8. The ultrasonic surgical device according to claim 2, characterized in that, The impedance identification contact includes a first contact and a second contact; the cutting tool includes a first blade and a second blade that can be opened and closed relative to each other, and the target under test is clamped by the first blade and the second blade; The first blade is provided with the first contact point, and the first contact point is connected to the signal source; The second blade is provided with the second contact, which is connected to the sampling unit.

9. The ultrasonic surgical device according to claim 1, characterized in that, The ultrasonic surgical device also includes an energy output module and a transducer; wherein... The energy output module is disposed in the housing of the host and connected to the main control module, and is used to output the energy signal generated by the main control module; One end of the transducer is connected to the energy output module, and the other end is connected to the cutting tool. It is used to convert the energy signal output by the energy output module into ultrasonic energy and then output it to the cutting tool.

10. The ultrasonic surgical apparatus of claim 9, wherein, The ultrasonic surgical device also includes a display device connected to the energy output module, which is used to display the energy signal output by the energy output module.

Images