CN114469269A - Ultrasonic knife transducer overheating protection method and device and ultrasonic knife equipment - Google Patents
Ultrasonic knife transducer overheating protection method and device and ultrasonic knife equipment Download PDFInfo
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- CN114469269A CN114469269A CN202210336450.2A CN202210336450A CN114469269A CN 114469269 A CN114469269 A CN 114469269A CN 202210336450 A CN202210336450 A CN 202210336450A CN 114469269 A CN114469269 A CN 114469269A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/04—Protection of tissue around surgical sites against effects of non-mechanical surgery, e.g. laser surgery
- A61B2090/0472—Protection of tissue around surgical sites against effects of non-mechanical surgery, e.g. laser surgery against ultrasound energy
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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Abstract
The invention relates to an ultrasonic knife transducer overheating protection method and device and ultrasonic knife equipment. The overheating protection method of the ultrasonic knife transducer comprises the following steps: acquiring the current working frequency of the transducer; calculating the current temperature according to the current working frequency by utilizing a conversion relation between the working frequency and the temperature of the transducer which is established in advance; and judging whether the current temperature exceeds a preset temperature or not, and sending a prompt warning when the current temperature exceeds the preset temperature. According to the invention, the current temperature of the transducer is calculated through the working frequency of the transducer, and a temperature sensor is not required to be arranged in the transducer, so that the problem of difficulty in temperature acquisition of the transducer is solved, and the damage to the transducer and the injury to a user caused by overhigh temperature of the transducer are avoided. The invention also determines the current working frequency of the transducer by calculating the average value of the working frequencies acquired for multiple times, and judges whether the current temperature of the transducer is overhigh or not by calculating the temperature rising value according to the initial temperature and the current temperature of the transducer, thereby improving the accuracy.
Description
Technical Field
The invention relates to the technical field of medical instruments for surgical operations, in particular to an ultrasonic knife transducer overheating protection method and device and ultrasonic knife equipment.
Background
An ultrasonic scalpel surgical device is a device which can cut tissue by using an ultrasonic scalpel, and is one of electric surgical instruments which replace a mechanical scalpel to cut tissue. It utilizes the heat effect, air effect and high-frequency mechanical vibration of ultrasonic wave to change structure and state of biological tissue, and can cut, separate and destroy tissue so as to attain the goal of surgical treatment. It is mainly applied to the cutting and the separation of soft tissues in surgical operations and has good hemostatic effect. Due to its good hemostatic function, the ultrasonic scalpel is increasingly used in surgical operations.
The ultrasonic blade includes a blade handle, an ultrasonic blade handle positioned on the handle, and an instrument connected to the ultrasonic blade handle and having a distally mounted end effector including a blade bar assembly to cut and seal tissue. Wherein, the ultrasonic knife handle is provided with a transducer which can convert an electric signal into ultrasonic mechanical waves, thereby leading the ultrasonic knife to carry out separation cutting and sealing on human tissues.
The transducer in the ultrasonic blade may increase in temperature over time, causing damage to the transducer and injury to the user when the temperature is too high. However, the transducer itself has a compact structure and a small volume, and it is difficult to implement temperature acquisition by arranging a temperature sensor in the transducer.
Disclosure of Invention
The invention aims to solve the technical problems that the transducer is damaged due to overheating of the transducer and a user is injured due to the fact that the temperature of the transducer of an ultrasonic knife rises in the using process of the transducer of the ultrasonic knife, and particularly provides an overheating protection method and device of the transducer of the ultrasonic knife and ultrasonic knife equipment.
According to the invention, the current temperature of the transducer is calculated through the working frequency of the transducer, and a temperature sensor is not required to be arranged in the transducer, so that the problem of difficulty in temperature acquisition of the transducer is solved, and the damage to the transducer and the injury to a user caused by overhigh temperature of the transducer are avoided. The invention also determines the current working frequency of the transducer by calculating the average value of the working frequencies acquired for multiple times, and judges whether the current temperature of the transducer is too high or not by calculating the temperature rise value according to the initial temperature and the current temperature of the transducer, thereby improving the accuracy.
Aspects and advantages of the invention will be set forth in part in the following description, or may be obvious from the description, or may be learned through practice of the invention.
In a first aspect of the invention, there is provided a method of overheating protection for an ultrasonic blade transducer, comprising: acquiring the current working frequency of the transducer; calculating the current temperature according to the current working frequency by utilizing a conversion relation between the working frequency and the temperature of the transducer which is established in advance; and judging whether the current temperature exceeds a preset temperature or not, and sending a prompt warning when the current temperature exceeds the preset temperature.
In some embodiments, the method further comprises: acquiring the working frequency and the corresponding temperature of the transducer in advance; and establishing the conversion relation according to the working frequency and the corresponding temperature of the transducer acquired in advance.
In some embodiments, the method further comprises: acquiring the initial working frequency of the transducer; calculating an initial temperature according to the initial working frequency by using the conversion relation; and calculating the difference value of the current temperature and the initial temperature.
In some embodiments, the method further comprises: judging whether the difference value between the current temperature and the initial temperature exceeds a preset upper temperature difference limit or not; and if the difference value between the current temperature and the initial temperature exceeds the preset upper limit of the temperature difference, sending a prompt warning.
In some embodiments, the method further comprises: if the prompt warning is sent, the actual temperature of the transducer is confirmed to judge whether the actual temperature of the transducer exceeds the preset temperature; and if the actual temperature of the transducer is confirmed to exceed the preset temperature, stopping the transducer.
In some embodiments, the method further comprises: if a prompt warning is sent, acquiring the actual temperature of the transducer to confirm whether the actual temperature of the transducer exceeds the preset temperature; and if the actual temperature of the energy converter is confirmed not to exceed the preset temperature, updating the conversion relation.
In some embodiments, obtaining the current operating frequency of the transducer comprises: collecting the current working frequency of the transducer for multiple times; and calculating the average value of the working frequencies acquired for multiple times as the current working frequency of the transducer.
In a second aspect of the invention, there is provided an ultrasonic blade transducer overheating protection device comprising: a frequency acquisition module configured to: acquiring the current working frequency of the transducer; a frequency-to-temperature conversion module configured to: calculating the current temperature according to the current working frequency by utilizing a conversion relation between the working frequency and the temperature of the transducer which is established in advance; a judgment alert module configured to: and judging whether the current temperature exceeds a preset temperature or not, and sending a prompt warning when the current temperature exceeds the preset temperature.
In some embodiments, the frequency-to-temperature conversion module is further configured to: and establishing the conversion relation according to the working frequency and the corresponding temperature of the transducer acquired in advance.
In some embodiments, the frequency acquisition module is further configured to: acquiring the initial working frequency of the transducer; the frequency-to-temperature conversion module is further configured to: calculating an initial temperature according to the initial working frequency by using the conversion relation; the apparatus also includes a temperature difference calculation module configured to: and calculating the difference value of the current temperature and the initial temperature.
In some embodiments, the decision alert module is further configured to: judging whether the difference value between the current temperature and the initial temperature exceeds a preset upper temperature difference limit or not; and if the difference value between the current temperature and the initial temperature exceeds the preset upper temperature difference limit, sending a prompt warning.
In some embodiments, the decision alert module is further configured to: determining whether the actual temperature of the transducer exceeds the preset temperature or not by using the actual temperature of the transducer acquired when the judgment warning module sends out a prompt warning; the device further comprises: a shutdown module configured to: and stopping the transducer when the judgment warning module confirms that the actual temperature of the transducer exceeds the preset temperature.
In some embodiments, the decision alert module is further configured to: determining whether the actual temperature of the transducer exceeds the preset temperature or not by using the actual temperature of the transducer acquired when the judgment warning module sends out a prompt warning; the frequency-to-temperature conversion module is further configured to: and updating the conversion relation when the judgment warning module confirms that the actual temperature of the transducer does not exceed the preset temperature.
In some embodiments, the frequency acquisition module is further configured to: collecting the current working frequency of the transducer for multiple times; and calculating the average value of the working frequencies acquired for multiple times as the current working frequency of the transducer.
In a third aspect of the invention, there is provided an ultrasonic blade apparatus comprising an ultrasonic blade transducer overheating protection device according to any one of the embodiments of the second aspect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a flow diagram of a method for overheating protection of an ultrasonic blade transducer according to one embodiment of the present application;
FIG. 2 is a flow chart of a method of ultrasonic blade thermal protection according to another embodiment of the present application;
FIG. 3 is a graph illustrating exemplary ultrasonic blade transducer frequency temperature profiles.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In the following detailed description, reference is made to the accompanying drawings that form a part hereof and in which is shown by way of illustration specific embodiments of the application. In the drawings, like numerals describe substantially similar components throughout the different views. Various specific embodiments of the present application are described in sufficient detail below to enable those skilled in the art to practice the teachings of the present application. It is to be understood that other embodiments may be utilized and structural, logical or electrical changes may be made to the embodiments of the present application.
In one aspect, the present invention provides a method for protecting an ultrasonic blade transducer from overheating, and fig. 1 is a flowchart illustrating a method for protecting an ultrasonic blade transducer from overheating according to an embodiment of the present application, which includes the following steps.
In step 101, the current operating frequency of the transducer is obtained.
In step 102, a current temperature is calculated from the current operating frequency using a pre-established transfer relationship between the operating frequency of the transducer and the temperature.
The present invention innovatively finds that the operating frequency of a transducer has a temperature correspondence, i.e., the higher the frequency, the lower its temperature. FIG. 3 is a graph illustrating an exemplary ultrasonic blade transducer frequency temperature profile. Therefore, the working frequency and the temperature of the transducer can be acquired in advance, and the conversion relation between the working frequency and the temperature of the transducer is established, so that the temperature can be calculated by acquiring the working frequency of the transducer. This can be done, for example, by machine learning, i.e., inputting the pre-acquired working frequency value and temperature value of the transducer into a model, and establishing a conversion relationship between the working frequency and temperature of the transducer by training the model, wherein the method of machine learning is prior art and will not be described in detail herein. Of course, other ways of establishing the conversion relationship between the operating frequency and the temperature of the transducer will be readily apparent to those skilled in the art, and the present invention is not limited thereto.
According to the method, the current temperature of the ultrasonic knife transducer can be obtained, and whether the current temperature is too high or not can be further judged. According to the invention, the current temperature of the transducer is calculated through the working frequency of the transducer, and a temperature sensor is not required to be arranged in the transducer, so that the problem of difficulty in temperature acquisition of the transducer is solved, and the damage to the transducer and the injury to a user caused by overhigh temperature of the transducer are avoided.
Further, in step 103, it is determined whether the current temperature exceeds the preset temperature. If the current temperature exceeds the preset temperature, a warning is issued in step 104. The temperature of the transducer can be timely reminded of the workers through prompt and warning, and the workers can timely handle the transducer conveniently.
And if the current temperature is judged not to exceed the preset temperature, returning to the step 101 to obtain the current working frequency of the transducer again.
In order to judge whether the temperature of the ultrasonic knife transducer is too high or not more accurately, the ultrasonic knife transducer overheating protection method further comprises the following steps. FIG. 2 is a flow chart illustrating a method for ultrasonic blade overheating protection according to another embodiment of the present application.
In step 201, an initial operating frequency of the transducer is obtained.
In step 202, an initial temperature is calculated from the initial operating frequency using a transfer relationship between the operating frequency of the transducer and the temperature.
In step 203, the difference between the current temperature acquired through the above steps 101 and 102 and the initial temperature is calculated.
In step 204, it is determined whether the difference between the current temperature and the initial temperature exceeds a preset upper temperature difference limit.
In step 205, if the difference between the current temperature and the initial temperature exceeds the preset upper limit of the temperature difference, a warning is issued.
If the difference value between the current temperature and the initial temperature does not exceed the preset upper limit of the temperature difference, the current temperature can be obtained again, and the difference value between the current temperature and the initial temperature is calculated.
Because the temperature of the transducer is calculated according to the working frequency of the transducer, and a certain error may exist in the calculation method, the temperature rise value of the transducer is determined by calculating the difference value between the current temperature and the initial temperature, whether the current temperature of the transducer is too high is judged according to the temperature rise value, the error can be reduced, and the judgment accuracy is improved. If the difference value (temperature rise value) between the current temperature and the initial temperature exceeds the preset upper limit of the temperature difference, a prompt warning is sent out to remind workers in time.
Alternatively, if a warning is issued, then in step 206, the actual transducer temperature is collected to confirm whether the actual transducer temperature exceeds the preset temperature.
If it is determined that the actual temperature of the transducer exceeds the predetermined temperature, then the transducer operation is stopped in step 207. If it is determined that the actual temperature of the transducer does not exceed the predetermined temperature, then in step 208, the conversion relationship between the operating frequency and the temperature of the transducer is updated.
Due to the fact that certain errors may exist, after the prompt warning is sent out, the working personnel firstly acquire the actual temperature of the transducer, and therefore whether the actual temperature of the transducer exceeds the preset temperature or not is confirmed. And if the actual temperature of the transducer actually exceeds the preset temperature, stopping the transducer in time to reduce the temperature of the transducer in time. If the actual temperature of the transducer does not exceed the preset temperature, the accuracy of the conversion relation is not enough, and at the moment, the conversion relation between the working frequency of the transducer and the temperature is automatically updated so as to improve the frequency-temperature conversion accuracy.
In some embodiments, obtaining the current operating frequency of the transducer may include: collecting the current working frequency of the transducer for multiple times; and calculating the average value of the working frequencies acquired for multiple times as the current working frequency of the transducer.
The accuracy of the current working frequency of the transducer acquired at a single time may be low, so that the current working frequency of the transducer is acquired by acquiring the current working frequency of the transducer for multiple times and calculating the average value of the working frequencies acquired for multiple times, and the accuracy is greatly improved.
Optionally, after acquiring the current working frequency of the transducer, judging whether the acquired current working frequency of the transducer exceeds a preset range; if the frequency exceeds the preset range, the acquired frequency is possibly wrong, and the wrong current working frequency is abandoned and the acquisition is carried out again; and if the current working frequency is not beyond the preset range, using the current working frequency.
Optionally, after acquiring the current working frequency of the transducer, storing the current working frequency and accumulating the stored current working frequency quantity; judging whether the number of the current working frequencies reaches a preset number or not; and when the number of the current working frequencies reaches the preset number, accumulating the stored number of the current working frequencies again.
In another aspect, the present invention further provides an overheating protection device for an ultrasonic blade transducer, including: a frequency acquisition module configurable to: acquiring the current working frequency of the transducer; a frequency-to-temperature conversion module configurable to: and calculating the current temperature according to the current working frequency by utilizing the pre-established conversion relation between the working frequency and the temperature of the transducer.
As described above, the present invention finds that the operating frequency of the transducer has a correspondence with temperature. Therefore, the working frequency and the temperature of the transducer can be acquired in advance, and the conversion relation between the working frequency and the temperature of the transducer is established, so that the temperature can be calculated by acquiring the working frequency of the transducer. The overheating protection device for the ultrasonic knife transducer provided by the invention can obtain the current temperature of the ultrasonic knife transducer through the frequency acquisition module and the frequency temperature conversion module, and further judge whether the current temperature is too high. According to the invention, the current temperature of the transducer is calculated through the working frequency of the transducer, and a temperature sensor is not required to be arranged in the transducer, so that the problem of difficulty in temperature acquisition of the transducer is solved, and the damage to the transducer and the injury to a user caused by overhigh temperature of the transducer are avoided.
Further, the ultrasonic blade overheating protection device provided by the present embodiment may further include: a judgment warning module, which can be configured to judge whether the current temperature exceeds a preset temperature; and if the current temperature exceeds the preset temperature, a prompt warning is sent out. The temperature of the transducer can be timely reminded of the workers through prompt and warning, and the workers can timely handle the transducer conveniently.
Optionally, the frequency-temperature conversion module may be further configured to establish a conversion relationship between the working frequency of the transducer and the temperature according to the pre-acquired working frequency of the transducer and the corresponding temperature.
In order to judge whether the temperature of the transducer of the ultrasonic scalpel is too high or not more accurately, the frequency acquisition module can be further used for acquiring the initial working frequency of the transducer, and the frequency-temperature conversion module can be further used for calculating the initial temperature according to the initial working frequency. The ultrasonic blade transducer overheating protection device may also include a temperature difference calculation module that may be configured to calculate a difference between the current temperature and the initial temperature. At this time, the judgment warning module can also be configured to judge whether the difference value between the current temperature and the initial temperature exceeds a preset upper temperature difference limit; and if the difference value between the current temperature and the initial temperature exceeds the preset upper limit of the temperature difference, a prompt warning is sent out.
Because the temperature of the transducer is calculated according to the working frequency of the transducer, and a certain error may exist in the calculation method, the temperature difference between the current temperature and the initial temperature is calculated by the temperature difference calculation module to determine the temperature rise value of the transducer, and whether the current temperature of the transducer is too high is judged according to the temperature rise value, so that the error can be reduced, and the judgment accuracy is improved. If the difference value (temperature rise value) between the current temperature and the initial temperature exceeds the preset upper temperature difference limit, a prompt warning is sent out to remind workers in time.
Optionally, the judgment warning module may be further configured to determine whether the actual temperature of the transducer exceeds the preset temperature by using the actual temperature of the transducer acquired when the judgment warning module issues the prompt warning.
Optionally, the ultrasonic blade transducer overheating protection device may further include a shutdown module configured to stop the transducer from operating when the judgment warning module confirms that the actual temperature of the transducer exceeds the preset temperature.
Optionally, the frequency-temperature conversion module may be further configured to update the conversion relationship between the operating frequency and the temperature of the transducer when the determination module determines that the actual temperature of the transducer does not exceed the preset temperature.
Due to the fact that certain errors may exist, after the prompt warning is sent out, the working personnel firstly acquire the actual temperature of the transducer, and therefore whether the actual temperature of the transducer exceeds the preset temperature or not is confirmed. And if the actual temperature of the transducer actually exceeds the preset temperature, stopping the transducer in time to reduce the temperature of the transducer in time. If the actual temperature of the transducer does not exceed the preset temperature, the accuracy of the conversion relation is not enough, and at the moment, the frequency-temperature conversion module automatically updates the conversion relation between the working frequency and the temperature of the transducer so as to improve the frequency-temperature conversion accuracy.
In some embodiments, the frequency acquisition module may be further configured to: collecting the current working frequency of the transducer for multiple times; and calculating the average value of the working frequencies acquired for multiple times as the current working frequency of the transducer.
The current working frequency accuracy of the transducer acquired by the frequency acquisition module for a single time is possibly low, so that the current working frequency of the transducer is acquired by acquiring the current working frequency of the transducer for multiple times and calculating the average value of the working frequencies acquired for multiple times, and the accuracy is greatly improved.
Optionally, after acquiring the current working frequency of the transducer, the frequency acquisition module may be further configured to determine whether the acquired current working frequency of the transducer exceeds a preset range; if the frequency exceeds the preset range, the acquired frequency is possibly wrong, and the wrong current working frequency is abandoned and the acquisition is carried out again; and if the current working frequency is not beyond the preset range, using the current working frequency.
Optionally, the ultrasonic blade transducer overheating protection device may further comprise a storage and counting module configured for: after the frequency acquisition module acquires the current working frequency of the transducer, storing the current working frequency and accumulating the number of the stored current working frequencies; judging whether the number of the current working frequencies reaches a preset number or not; and when the number of the current working frequencies reaches the preset number, accumulating the stored number of the current working frequencies again.
Yet another aspect of the present invention provides an ultrasonic blade apparatus including an ultrasonic blade transducer overheat protection device as described above. Therefore, the invention can effectively avoid the overheating of the transducer in the ultrasonic knife device.
The above embodiments are provided only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the scope of the present invention, and therefore, all equivalent technical solutions should fall within the scope of the present invention.
Claims (15)
1. An ultrasonic blade transducer overheating protection method comprising:
acquiring the current working frequency of the transducer;
calculating the current temperature according to the current working frequency by utilizing a conversion relation between the working frequency and the temperature of the transducer which is established in advance;
and judging whether the current temperature exceeds a preset temperature or not, and sending a prompt warning when the current temperature exceeds the preset temperature.
2. The method of claim 1, further comprising:
acquiring the working frequency and the corresponding temperature of the transducer in advance;
and establishing the conversion relation according to the working frequency and the corresponding temperature of the transducer acquired in advance.
3. The method of claim 1, further comprising:
acquiring the initial working frequency of the transducer;
calculating an initial temperature according to the initial working frequency by using the conversion relation;
and calculating the difference value of the current temperature and the initial temperature.
4. The method of claim 3, further comprising: judging whether the difference value between the current temperature and the initial temperature exceeds a preset upper temperature difference limit or not; and if the difference value between the current temperature and the initial temperature exceeds the preset upper limit of the temperature difference, sending a prompt warning.
5. The method of claim 1, further comprising: if a prompt warning is sent, acquiring the actual temperature of the transducer to confirm whether the actual temperature of the transducer exceeds the preset temperature; and if the actual temperature of the transducer is confirmed to exceed the preset temperature, stopping the transducer.
6. The method of claim 1, further comprising: if a prompt warning is sent, acquiring the actual temperature of the transducer to confirm whether the actual temperature of the transducer exceeds the preset temperature; and if the actual temperature of the energy converter is confirmed not to exceed the preset temperature, updating the conversion relation.
7. The method of claim 1, wherein acquiring a current operating frequency of a transducer comprises:
collecting the current working frequency of the transducer for multiple times;
and calculating the average value of the working frequencies acquired for multiple times as the current working frequency of the transducer.
8. An ultrasonic blade transducer overheating protection device comprising:
a frequency acquisition module configured to: acquiring the current working frequency of the transducer;
a frequency-to-temperature conversion module configured to: calculating the current temperature according to the current working frequency by utilizing a conversion relation between the working frequency and the temperature of the transducer which is established in advance;
a judgment alert module configured to: and judging whether the current temperature exceeds a preset temperature or not, and sending a prompt warning when the current temperature exceeds the preset temperature.
9. The apparatus of claim 8, wherein the frequency-to-temperature conversion module is further configured for: and establishing the conversion relation according to the working frequency and the corresponding temperature of the transducer acquired in advance.
10. The apparatus of claim 8, wherein the frequency acquisition module is further configured for: acquiring the initial working frequency of the transducer;
the frequency-to-temperature conversion module is further configured to: calculating an initial temperature according to the initial working frequency by using the conversion relation;
the apparatus also includes a temperature difference calculation module configured to: and calculating the difference value of the current temperature and the initial temperature.
11. The apparatus of claim 10, wherein the judgment alert module is further configured to: judging whether the difference value between the current temperature and the initial temperature exceeds a preset upper temperature difference limit or not; and if the difference value between the current temperature and the initial temperature exceeds the preset upper limit of the temperature difference, sending a prompt warning.
12. The apparatus of claim 8, wherein the judgment alert module is further configured to: determining whether the actual temperature of the transducer exceeds the preset temperature or not by using the actual temperature of the transducer acquired when the judgment warning module sends out a prompt warning;
the device further comprises: a shutdown module configured to: and stopping the transducer when the judgment warning module confirms that the actual temperature of the transducer exceeds the preset temperature.
13. The apparatus of claim 8, wherein the judgment alert module is further configured to: determining whether the actual temperature of the transducer exceeds the preset temperature or not by using the actual temperature of the transducer acquired when the judgment warning module sends out a prompt warning;
the frequency-to-temperature conversion module is further configured to: and updating the conversion relation when the judgment warning module confirms that the actual temperature of the transducer does not exceed the preset temperature.
14. The apparatus of claim 8, wherein the frequency acquisition module is further configured for:
collecting the current working frequency of the transducer for multiple times;
and calculating the average value of the working frequencies acquired for multiple times as the current working frequency of the transducer.
15. An ultrasonic blade apparatus comprising the ultrasonic blade transducer overheat protection device according to any one of claims 8 to 14.
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| CN212515446U (en) * | 2020-08-26 | 2021-02-09 | 重庆迈科唯医疗科技有限公司 | Ultrasonic transducer control device |
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