CN-121987978-A - Ultrasonic wave emission control method and device of ultrasonic therapeutic apparatus, temperature field simulation method and device, ultrasonic therapeutic apparatus and storage medium

Abstract

The embodiment of the application discloses an ultrasonic emission control method, a temperature field simulation method, a device, an ultrasonic therapeutic apparatus and a storage medium of the ultrasonic therapeutic apparatus; the method comprises the steps of determining an electric signal pulse emission parameter value corresponding to an ultrasonic treatment parameter value through a preset mapping relation between the electric signal pulse emission parameter value and the ultrasonic treatment parameter value, determining the preset mapping relation through acting the electric signal pulse emission parameter value on target tissue and based on target temperature after energy absorption of the target tissue, and generating an electric pulse train according to the electric signal pulse emission parameter value, wherein the electric pulse train is used for exciting a treatment head of an ultrasonic treatment instrument to emit ultrasonic waves. According to the embodiment of the application, through the preset mapping relation between the electric signal pulse emission parameter value and the ultrasonic treatment parameter, the temperature rise possibly caused by the energy output of the electric signal pulse can be accurately controlled, the accuracy of energy transmission is ensured, and the risk of skin thermal injury is reduced.

Inventors

• Request for anonymity

Assignees

• 深圳半岛医疗集团股份有限公司

Dates

Publication Date

20260508

Application Date

20241104

Claims (11)

1. 1. An ultrasonic emission control method of an ultrasonic therapeutic apparatus, characterized by comprising: Acquiring ultrasonic treatment parameter values set for target tissues; determining an electrical signal pulse emission parameter value corresponding to an ultrasonic treatment parameter value through a preset mapping relation between the electrical signal pulse emission parameter value and the ultrasonic treatment parameter value, wherein the preset mapping relation is determined based on a target temperature after the electrical signal pulse emission parameter value acts on the target tissue and energy is absorbed by the target tissue; And generating an electric pulse train according to the electric signal pulse emission parameter value, wherein the electric pulse train is used for exciting a treatment head of the ultrasonic treatment instrument to emit ultrasonic waves.
2. 2. The ultrasonic emission control method of an ultrasonic therapeutic apparatus according to claim 1, wherein the acquiring the ultrasonic therapeutic parameter value set for the target tissue includes: Responding to the operation of setting ultrasonic treatment parameter values by a user by utilizing the treatment parameter control of the ultrasonic treatment instrument, and taking the ultrasonic treatment parameter values set by the user by utilizing the treatment parameter control as the ultrasonic treatment parameter values set for the target tissue.
3. 3. The ultrasonic wave emission control method of an ultrasonic therapeutic apparatus according to claim 1, characterized in that the method further comprises: Determining a target treatment mode selected by a user from a plurality of treatment modes provided by the ultrasonic treatment apparatus for target tissue; The determining the electric signal pulse emission parameter value corresponding to the ultrasonic treatment parameter value through the preset mapping relation between the electric signal pulse emission parameter value and the ultrasonic treatment parameter value comprises the following steps: And under a preset mapping relation between the electric signal pulse emission parameter value and the ultrasonic treatment parameter value, determining an electric signal pulse emission parameter corresponding to the ultrasonic treatment parameter value based on the target treatment mode and the ultrasonic treatment parameter value.
4. 4. The ultrasonic emission control method of an ultrasonic therapeutic apparatus according to claim 3, wherein the target therapy mode includes a first therapy mode, and wherein the determining the electric signal pulse emission parameter corresponding to the ultrasonic therapy parameter value based on the target therapy mode and the ultrasonic therapy parameter value under a preset mapping relation between the electric signal pulse emission parameter value and the ultrasonic therapy parameter value includes a first electric signal pulse emission parameter value and a second electric signal pulse emission parameter value; The electric pulse train generated according to the electric signal pulse emission parameter value sequentially comprises a first electric pulse train and a second electric pulse train in time sequence, wherein the pulse amplitude of the first electric pulse train is lower than that of the second electric pulse train, and the duty ratio of the first electric pulse train is higher than that of the second electric pulse train.
5. 5. The ultrasonic wave transmission control method of an ultrasonic therapeutic apparatus according to claim 3, wherein the target therapeutic pattern includes a second therapeutic pattern, and wherein the determining the electric signal pulse transmission parameter corresponding to the ultrasonic therapeutic parameter value based on the target therapeutic pattern and the ultrasonic therapeutic parameter value under a preset mapping relation between the telecommunication signal pulse transmission parameter value and the ultrasonic therapeutic parameter value includes a first electric signal pulse transmission parameter value and a second electric signal pulse transmission parameter value; the electric pulse train generated according to the electric signal pulse emission parameter value sequentially comprises a first electric pulse train and a second electric pulse train in time sequence, wherein the pulse amplitude of the first electric pulse train is higher than that of the second electric pulse train, and the duty cycle of the first electric pulse train is lower than that of the second electric pulse train.
6. 6. The temperature field simulation method is characterized in that a preset mapping relation between an electric signal pulse emission parameter value and an ultrasonic treatment parameter value is obtained by adopting the following modes: Based on a finite element simulation method, respectively establishing an ultrasonic transducer model and a target tissue model; Simulating a transmission electric pulse train to the ultrasonic transducer model according to the electric signal pulse transmission parameter value so as to enable the ultrasonic transducer model to vibrate and enable each finite element unit in the target tissue model to generate displacement; Calculating the displacement of each finite element unit in the target tissue model to obtain the total heat source of the target tissue model; Calculating the temperature of the position of each finite element unit in the target tissue model based on a biological heat transfer equation and the total heat source of the target tissue model to obtain temperature field information, wherein the temperature field information comprises the target temperature of the target tissue model; Determining ultrasonic treatment parameter values corresponding to the electric signal pulse emission parameters according to the total heat source of the target tissue model and the electric signal pulse emission parameters; And according to the target temperature of the target tissue model, the ultrasonic treatment parameter value and the electric signal pulse emission parameter are stored in a correlated mode to obtain a preset mapping relation between the electric signal pulse emission parameter value and the ultrasonic treatment parameter value, wherein the preset mapping relation is used for determining the electric signal pulse emission parameter value corresponding to the ultrasonic treatment parameter value.
7. 7. The temperature field simulation method of claim 6 wherein after each finite element in the target tissue model is displaced, the method further comprises: Performing simulation fitting on the displacement of each finite element unit in the target tissue model based on a wave equation to obtain sound field distribution information; The wave equation includes: Wherein, the Representing the displacement generated by the finite element unit, x, y and z represent the spatial direction of the target tissue model, ρ represents the density of the target tissue model, c represents the Young's modulus, and t represents time.
8. 8. The temperature field simulation method according to claim 7, wherein the sound field distribution information further includes displacement field gradient information, the total heat source of the target tissue model obtained by calculation of displacement of each of the finite element units in the target tissue model includes: calculating to obtain a total heat source of the target tissue model through the displacement of each finite element unit and the gradient information of the displacement field in the target tissue model; The biological heat transfer equation comprises: Q=ρ b C p,b w b ( T b -T ) +Q t Wherein T b represents the temperature of arterial blood in the target tissue model, T represents the target temperature of the target site, C p,b represents the blood specific heat capacity of the target tissue model, w b represents the blood perfusion rate of the target tissue model, ρ b represents the blood density of the target tissue model, Q represents the total heat source of the target tissue model, and Q t represents the metabolic heat source of the target tissue model.
9. 9. An ultrasonic emission control device of an ultrasonic therapeutic apparatus, comprising: An acquisition unit configured to acquire an ultrasonic treatment parameter value set for a target tissue; the device comprises a determining unit, a control unit and a control unit, wherein the determining unit is used for determining an electric signal pulse emission parameter value corresponding to an ultrasonic treatment parameter value through a preset mapping relation between the electric signal pulse emission parameter value and the ultrasonic treatment parameter value, wherein the preset mapping relation is determined based on a target temperature after the electric signal pulse emission parameter value is simulated to act on the target tissue and the target tissue absorbs energy; and the pulse transmitting unit is used for generating an electric pulse train according to the electric signal pulse transmitting parameter value, and the electric pulse train is used for exciting a treatment head of the ultrasonic treatment instrument to transmit ultrasonic waves.
10. 10. The ultrasonic therapeutic apparatus is characterized by comprising a host machine, a handle and a therapeutic head, wherein the therapeutic head and the handle are electrically connected with the host machine; The host computer comprises a memory and a processor, wherein the memory stores a computer program, and the computer program realizes the ultrasonic wave emission control method of the ultrasonic therapeutic apparatus according to any one of claims 1 to 5 when being executed by the processor; The handle is used for connecting the host machine and the treatment head; The treatment head is internally provided with an ultrasonic transducer for outputting ultrasonic waves.
11. 11. A computer-readable storage medium having stored thereon a computer program, characterized in that the ultrasound emission control method of the ultrasound therapy device according to any one of claims 1 to 5 is performed when the computer program is run on the ultrasound therapy device.

Description

Ultrasonic wave emission control method and device of ultrasonic therapeutic apparatus, temperature field simulation method and device, ultrasonic therapeutic apparatus and storage medium Technical Field The embodiment of the application relates to the field of ultrasonic treatment, in particular to an ultrasonic emission control method, a temperature field simulation method and device of an ultrasonic therapeutic apparatus, the ultrasonic therapeutic apparatus and a storage medium. Background The ultrasonic therapeutic apparatus generally comprises a main machine and a therapeutic head, wherein the main machine generates electric pulses to excite a focusing ultrasonic transducer to convert the electric pulses into ultrasonic waves and transmit the ultrasonic waves, the ultrasonic energy is absorbed by skin to form a cumulative thermal effect in a therapeutic area, and the formed cumulative thermal effect is utilized to achieve the expected therapeutic effect. However, cumulative thermal effects may cause problems with thermal damage to the skin. The existing ultrasonic therapeutic apparatus products mostly adopt a temperature sensor (such as a thermocouple) arranged on the surface of a therapeutic head to monitor the therapeutic temperature. However, the temperature monitoring range of such sensors is limited to the skin surface, and the temperature rise of deep skin tissues cannot be detected, so that the potential risk of skin thermal injury due to oversherapy can be caused. Disclosure of Invention Based on the above problems, the embodiments of the present application provide an ultrasonic emission control method, a temperature field simulation method, a device, an ultrasonic therapeutic apparatus, and a storage medium for an ultrasonic therapeutic apparatus, which aim to precisely control a thermal effect of focused ultrasound in skin tissue, reduce thermal damage caused by improper temperature control, and improve safety of ultrasonic therapy. In a first aspect, an embodiment of the present application provides an ultrasonic emission control method of an ultrasonic therapeutic apparatus, the control method including: Acquiring ultrasonic treatment parameter values set for target tissues; determining an electrical signal pulse emission parameter value corresponding to an ultrasonic treatment parameter value through a preset mapping relation between the electrical signal pulse emission parameter value and the ultrasonic treatment parameter value, wherein the preset mapping relation is determined based on a target temperature after the electrical signal pulse emission parameter value acts on the target tissue and energy is absorbed by the target tissue; And generating an electric pulse train according to the electric signal pulse emission parameter value, wherein the electric pulse train is used for exciting a treatment head of the ultrasonic treatment instrument to emit ultrasonic waves. In an embodiment, the acquiring the ultrasound therapy parameter value set for the target tissue includes: Responding to the operation of setting ultrasonic treatment parameter values by a user by using a treatment parameter control of the ultrasonic treatment instrument, and taking the ultrasonic treatment parameter values set by the user by using the treatment parameter control as the ultrasonic treatment parameter values set for the target tissue. In an embodiment, the method further comprises: Determining a target treatment mode selected by a user from a plurality of treatment modes provided by the ultrasonic treatment apparatus for target tissue; The determining the electric signal pulse emission parameter value corresponding to the ultrasonic treatment parameter value through the preset mapping relation between the electric signal pulse emission parameter value and the ultrasonic treatment parameter value comprises the following steps: And under a preset mapping relation between the electric signal pulse emission parameter value and the ultrasonic treatment parameter value, determining an electric signal pulse emission parameter corresponding to the ultrasonic treatment parameter value based on the target treatment mode and the ultrasonic treatment parameter value. In one embodiment, the target treatment mode comprises a first treatment mode, and the determining the electric signal pulse emission parameter corresponding to the ultrasonic treatment parameter value based on the target treatment mode and the ultrasonic treatment parameter value under a preset mapping relation between the electric signal pulse emission parameter value and the ultrasonic treatment parameter value comprises a first electric signal pulse emission parameter value and a second electric signal pulse emission parameter value; The electric pulse train generated according to the electric signal pulse emission parameter value sequentially comprises a first electric pulse train and a second electric pulse train in time sequence, wherein the puls