Control method and device of ultrasonic probe, electronic equipment and storage medium

Abstract

The application provides a control method and device of an ultrasonic probe, electronic equipment and a storage medium. The method is suitable for a head-mounted maxillofacial tumor hyperthermia system. The system comprises a head-mounted fixing mechanism, an ultrasonic probe fixed on the fixing mechanism and a magnetoresistance sensor assembly. The front end surface of the ultrasonic probe faces the body surface skin. The magnetoresistance sensor assembly comprises a permanent magnet sheet attached to the body surface skin and a magnetoresistance sensor arranged on the ultrasonic probe. The method first controls a target region of the front end surface of the ultrasonic probe to operate at a target ultrasonic parameter. The shape and position of the region are matched with the maxillofacial tumor. Then, real-time offset data of the ultrasonic probe and the maxillofacial tumor are obtained through the magnetoresistance sensor assembly. The position of the target region is adjusted according to the real-time offset data, so that the position is always matched with the position of the maxillofacial tumor of the patient. Finally, the adjusted target region is still controlled to operate at the target ultrasonic parameter. The application can accurately and low-cost track the maxillofacial tumor after the maxillofacial tumor is offset.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical treatment, and in particular to a control method and device of an ultrasonic probe, an electronic device and a storage medium. BACKGROUND

[0002] When the ultrasonic wave acts on the human body, due to the strong absorption capacity of the human tissue to the sound energy, the human tissue absorbs the sound energy and converts it into heat during the propagation of the sound energy, thereby increasing the temperature of the human tissue. This phenomenon is the heat effect of the ultrasonic wave. Based on the basic theory, basic experimental research and a large number of clinical proofs of modern tumor thermotherapy, when the temperature is higher than 40℃, the cells will stop growing, and when the temperature reaches 45℃, the protein will start to deform, and with the further increase of the temperature, the protein will be decomposed. Due to the congenital malady of the tumor, the blood flow of the tumor is 10% of the surrounding tissue, and the heat is easy to accumulate. Under the action of the heat source, the tumor cells are more likely to be killed than other normal tissue cells, and the normal tissue cells will restore normal function after stopping the temperature rise. Based on the above principle, the current ultrasonic probe is usually attached to the human skin as a heat source to perform thermotherapy on the local malignant tumor of the maxillofacial region.

[0003] Currently, when performing thermotherapy on the maxillofacial tumor, a rigid mechanical arm is usually used to connect the host and the ultrasonic probe. For example, Chinese invention patent CN1593689A discloses an ultrasonic thermotherapy system for oral and maxillofacial malignant tumor, which comprises a host computer, a controllable high-frequency power source, a three-dimensional combined positioning mechanical arm and an ultrasonic probe, etc. One end of the three-dimensional combined positioning mechanical arm is connected with the case of the host computer, and the other end is connected with the ultrasonic probe. The three-dimensional combined positioning mechanical arm is composed of three straight arms, one self-locking three-dimensional rolling mechanism and two lockable two-dimensional motion mechanisms. The ultrasonic output surface of the ultrasonic probe is aligned with the lesion of the oral and maxillofacial region of the human body and tightly attached to the skin above the lesion by manual operation.

[0004] However, the thermotherapy process usually lasts for a period of time, during which the patient cannot be guaranteed to be completely stationary. If the patient moves or opens his mouth, etc., the ultrasonic probe will be deviated from the maxillofacial tumor, affecting the thermotherapy effect. If the ultrasonic probe is not deviated, the medical staff needs to operate the mechanical arm for a long time to track the maxillofacial tumor, which is high in cost, and the manual operation still has the problem that the tracking of the maxillofacial tumor is not accurate enough, resulting in poor thermotherapy effect.

[0005] Therefore, the current maxillofacial tumor thermotherapy system has the technical problem that it is difficult to accurately and low-cost track the maxillofacial tumor after the maxillofacial tumor is deviated, and needs to be improved. SUMMARY

[0006] Embodiments of the present application provide a control method and device for an ultrasonic probe, electronic equipment and a storage medium, to alleviate the technical problem that it is difficult to accurately and low-cost track the jaw tumor after the jaw tumor deviates in the current jaw tumor hyperthermia system.

[0007] To solve the above technical problems, the embodiments of the present application provide the following technical solutions:

[0008] The present application provides a control method for an ultrasonic probe, which is applicable to a head-mounted jaw tumor hyperthermia system. The head-mounted jaw tumor hyperthermia system comprises a head-mounted fixing mechanism, an ultrasonic probe and a magnetoresistance sensor assembly. The head-mounted fixing mechanism is fixed on the head of a patient. The ultrasonic probe is fixed in the head-mounted fixing mechanism, and the front end face of the ultrasonic probe faces the body surface skin. The magnetoresistance sensor assembly comprises a permanent magnet sheet and a magnetoresistance sensor. The permanent magnet sheet is attached to the body surface skin. The magnetoresistance sensor is arranged on the ultrasonic probe. The method comprises the following steps:

[0009] allocating a target ultrasonic parameter for a target region of the front end face, and controlling the target region to operate at the target ultrasonic parameter, the shape and position of the target region being matched with the jaw tumor of the patient;

[0010] obtaining initial distance data and real-time distance data of the magnetoresistance sensor and the permanent magnet sheet;

[0011] obtaining real-time deviation data of the ultrasonic probe and the jaw tumor according to the initial distance data and the real-time distance data;

[0012] adjusting the position of the target region according to the real-time deviation data until the adjusted target region position is matched with the jaw tumor of the patient, and controlling the adjusted target region to operate at the target ultrasonic parameter.

[0013] Meanwhile, the embodiments of the present application also provide a control device for an ultrasonic probe, which is applicable to a head-mounted jaw tumor hyperthermia system. The head-mounted jaw tumor hyperthermia system comprises a head-mounted fixing mechanism, an ultrasonic probe and a magnetoresistance sensor assembly. The head-mounted fixing mechanism is fixed on the head of a patient. The ultrasonic probe is fixed in the head-mounted fixing mechanism, and the front end face of the ultrasonic probe faces the body surface skin. The magnetoresistance sensor assembly comprises a permanent magnet sheet and a magnetoresistance sensor. The permanent magnet sheet is attached to the body surface skin. The magnetoresistance sensor is arranged on the ultrasonic probe. The device comprises the following components:

[0014] a first control module, configured to allocate a target ultrasonic parameter for a target region of the front end face, and control the target region to operate at the target ultrasonic parameter, the shape and position of the target region being matched with the jaw tumor of the patient;

[0015] a first obtaining module, configured to obtain initial distance data and real-time distance data of the magnetic resistance sensor and the permanent magnet piece;

[0016] a first obtaining module, configured to obtain initial distance data and real-time distance data of the magnetic resistance sensor and the permanent magnet piece;

[0017] a second control module, configured to adjust the position of the target region according to the real-time offset data until the adjusted target region position matches the maxillofacial tumor of the patient, and control the adjusted target region to operate at the target ultrasonic parameter.

[0018] The application also provides an electronic device, comprising a memory and a processor; the memory stores an application program, and the processor is used to run the application program in the memory to execute the steps in the control method of the ultrasonic probe.

[0019] The embodiment of the application provides a computer readable storage medium, which stores a plurality of instructions, and the instructions are suitable for being loaded by a processor to execute the steps in the control method of the ultrasonic probe.

[0020] Beneficial Effects: This application provides a control method, device, electronic device, and storage medium for an ultrasound probe. The method is applicable to a head-mounted maxillofacial tumor hyperthermia system. The head-mounted maxillofacial tumor hyperthermia system includes a head-mounted fixation mechanism, an ultrasound probe, and a magnetoresistive sensor assembly. The head-mounted fixation mechanism is fixed to the patient's head, and the ultrasound probe is fixed within the head-mounted fixation mechanism with its front end facing the skin. The magnetoresistive sensor assembly includes a permanent magnet and a magnetoresistive sensor. The permanent magnet is attached to the skin, and the magnetoresistive sensor is mounted on the ultrasound probe. The method first assigns target ultrasound parameters to the target area of ​​the front end and controls the target area to operate with the target ultrasound parameters. The shape and position of the target area match the patient's maxillofacial tumor. Then, the initial distance data and real-time distance data between the magnetoresistive sensor and the permanent magnet are acquired. Based on the initial distance data and real-time distance data, real-time offset data between the ultrasound probe and the maxillofacial tumor is obtained. Finally, the position of the target area is adjusted based on the real-time offset data until the adjusted target area position matches the patient's maxillofacial tumor, and the adjusted target area is controlled to operate with the target ultrasound parameters. This application replaces the robotic arm between the host and the ultrasound probe with a head-mounted fixation mechanism, fixing the ultrasound probe within it. This allows patients to receive prolonged hyperthermia while moving freely, reducing labor costs as medical staff do not require extended manual operation. Furthermore, by incorporating a magnetoresistive sensor assembly, real-time offset data between the ultrasound probe and the maxillofacial tumor can be read. This data is used to adjust the position of the target area on the probe's front surface. If the tumor deviates from its initial position due to patient movement, the system can automatically track the moving tumor. Compared to manual tracking, this method significantly improves accuracy. During tracking, neither the head-mounted fixation mechanism nor the ultrasound probe itself needs to move; only the target area needs to be moved, and the moved target area should continue operating with the target ultrasound parameters. This also reduces operational costs. Therefore, this application enables precise and low-cost tracking of maxillofacial tumors after they have shifted. Attached Figure Description

[0021] The technical solution and other beneficial effects of this application will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of a scenario for the control method of an ultrasonic probe provided in an embodiment of this application.

[0023] Figure 2 This is a schematic flowchart of a first method for controlling an ultrasonic probe provided in an embodiment of this application.

[0024] Figure 3 This is a schematic diagram of the first structure of the head-mounted fixation mechanism and the ultrasonic probe in the embodiments of this application.

[0025] Figure 4 Fig. 2 is a second structural schematic diagram of the head-mounted fixing mechanism and the ultrasonic probe in the embodiment of the present application.

[0026] Figure 5 Fig. 3 is an exploded structural schematic diagram of the ultrasonic probe and other components in the embodiment of the present application.

[0027] Figure 6 Fig. 4 is a movement schematic diagram of the target region in the embodiment of the present application.

[0028] Figure 7 Fig. 5 is a second flow schematic diagram of the control method of the ultrasonic probe provided in the embodiment of the present application.

[0029] Figure 8 Fig. 6 is a structural schematic diagram of the control device of the ultrasonic probe provided in the embodiment of the present application.

[0030] Figure 9 Fig. 7 is a structural schematic diagram of the electronic device provided in the embodiment of the present application.

[0031] Legend of reference signs:

[0032] processing center 11; control center 12; ultrasonic probe 13; circulating cooling system 14; permanent magnet sheet 151; magnetoresistance sensor 152; body surface skin 21; maxillofacial tumor 22; first head-mounted support 301; second head-mounted support 302; head-mounted fixing plate 303; ultrasonic fixing support 304; limiting bandage 305; tightness adjusting knob 306; ultrasonic fixing plate 307; skin-friendly foam 309; flexible liquid bag 310; flexible connecting component 311; fixing seat 312; ultrasonic transducer shell 501; pressure sensor 502; pressure control motor 503; pressure hole 504; pressure control motor push plate 505; first magnetoresistance sensor 1521; second magnetoresistance sensor 1522; ultrasonic unit 100; first direction X; second direction Y; first interval value Xmin; second interval value Ymin; initial ultrasonic unit A; target ultrasonic unit B; first control module 10; first acquisition module 20; first obtaining module 30; second control module 40; radio frequency circuit 101; memory 102; input unit 103; display unit 104; sensor 105; audio circuit 106; WiFi module 107; processor 108; power supply 109. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person skilled in the art without creative work are within the protection scope of the present application.

[0034] Please refer to Figure 1 , Figure 1The scene diagram applied to the control method of the ultrasonic probe provided in the embodiments of the present application is shown in the figure. The scene includes a head-mounted maxillofacial tumor hyperthermia system, which includes a processing center 11, a control center 12, a head-mounted fixing mechanism (not shown in the figure), an ultrasonic probe 13, a circulating cooling system 14, and a magnetoresistance sensor assembly. The head-mounted fixing mechanism can be worn on the head of a patient, wrapping the entire head inside. The ultrasonic probe 13 is fixed on the left side or the right side of the head-mounted fixing mechanism, and the front end face of the ultrasonic probe 13 faces the body surface skin 21 of the patient. The front end face includes a target area, which is assigned a target ultrasonic parameter by the processing center 11 and operates under the control of the control center 12. The ultrasonic wave emitted through the front end face can be used to perform hyperthermia on the maxillofacial tumor 22. The circulating cooling system 14 is arranged between the ultrasonic probe 13 and the body surface skin 21, and is used to carry away excess heat. The circulating cooling system 14 includes a flexible liquid bag, which can closely fit the two to enable the ultrasonic probe 13 to adapt to irregular maxillofacial tumors. The magnetoresistance sensor assembly includes a permanent magnet sheet 151 and a magnetoresistance sensor 152. The permanent magnet sheet 151 is attached to the body surface skin 21, and the magnetoresistance sensor 152 is fixed to the ultrasonic probe 13. The magnetic force generated between the permanent magnet sheet 151 and the magnetoresistance sensor 152 is sensed by the magnetoresistance sensor 152 and sent to the processing center 11, and the initial distance data of the two is obtained after processing. During the hyperthermia process, when the patient moves and causes the maxillofacial tumor 22 to deviate from the ultrasonic probe 13, the distance between the permanent magnet sheet 151 and the magnetoresistance sensor 152 will change. The real-time distance data can be obtained after the magnetoresistance sensor 152 senses and sends it to the processing center 11. The processing center 11 obtains the real-time deviation data of the ultrasonic probe 13 from the maxillofacial tumor 22 by calculating the difference between the real-time distance data and the initial distance data. The position of the target area is adjusted based on this data, so that the adjusted target area can still match the position of the maxillofacial tumor 22. Finally, the control center 12 controls the ultrasonic probe 13 to still operate in the adjusted target area with the previously assigned target ultrasonic parameter. In this way, the patient can move freely during the entire hyperthermia process, and medical personnel do not need to keep pressing the ultrasonic probe 13 on the maxillofacial tumor 22 for a long time, or manually track the movement of the deviated maxillofacial tumor 22. The system can independently complete the automatic tracking of the maxillofacial tumor 22, achieving low-cost and accurate tracking of the maxillofacial tumor 22. In the following embodiments, the process of how to control will be described in detail.

[0035] Please refer to Figure 2 , Figure 2 is the first flowchart of the control method of the ultrasonic probe provided in the embodiments of the present application. The method specifically includes:

[0036] S1: assigning target ultrasonic parameters to a target region of the front end face, and controlling the target region to operate at the target ultrasonic parameters, the shape and position of the target region matching the maxillofacial tumor of the patient.

[0037] The maxillofacial tumor hyperthermia system of the present application comprises a head-mounted fixing mechanism, an ultrasonic hyperthermia head, and a magnetoresistance sensor assembly. The head-mounted fixing mechanism is fixed on the head of the patient, the ultrasonic probe is fixed in the head-mounted fixing mechanism, and the front end face of the ultrasonic probe faces the body surface skin. The magnetoresistance sensor assembly comprises a permanent magnet sheet and a magnetoresistance sensor. The permanent magnet sheet is attached to the body surface skin, and the magnetoresistance sensor is arranged on the ultrasonic probe.

[0038] In combination with the embodiments shown in Figure 3 , Figure 4 and Figure 5 , the head-mounted fixing mechanism can specifically comprise a first head-mounted support 301, a second head-mounted support 302, a head-mounted fixing plate 303, an ultrasonic fixing support 304, a limiting bandage 305, and a tightness adjusting knob 306.

[0039] The head-mounted fixing plate 303 is a ring structure, and the first head-mounted support 301 and the second head-mounted support 302 are both semi-ring structures. The first end and the second end of the first head-mounted support 301 have a first connection point and a second connection point with the head-mounted fixing plate 303, respectively, and the first connection point and the second connection point are located on opposite sides of the head-mounted fixing plate 303. The first end and the second end of the second head-mounted support 302 have a third connection point and a fourth connection point with the head-mounted fixing plate 303, respectively, and the third connection point and the fourth connection point are located on opposite sides of the head-mounted fixing plate 303. After the head-mounted fixing mechanism is worn by the patient, the head-mounted fixing plate 303 is used to wrap the head of the patient in the horizontal direction, the first head-mounted support 301 is used to wrap the head of the patient from above the head, and the second head-mounted support 302 is used to wrap the head of the patient from behind the head. The tightness adjusting knob 306 is used to adjust the tightness of the head-mounted fixing plate 303 to adapt to the head size of different patients.

[0040] The first end of the ultrasonic fixing support 304 has a fifth connection point with the head-mounted fixing plate 303, and the first end of the limiting band 305 has a sixth connection point with the head-mounted fixing plate 303, and the fifth connection point and the sixth connection point are located on opposite sides of the head-mounted fixing plate 303. The second end of the ultrasonic fixing support 304 and the second end of the limiting band 305 are movably connected at the lower jaw surface of the patient, so that the ultrasonic fixing support 304 and the limiting band 305 wrap the left and right jaw surfaces of the patient, respectively. The ultrasonic fixing support 304 is provided with a mounting hole for mounting the ultrasonic probe 13. The left and right positions of the ultrasonic fixing support 304 and the limiting band 305 are interchangeable, so that the ultrasonic probe 13 can perform thermotherapy on the jaw surface tumor of the left or right jaw surface of the patient as needed.

[0041] The ultrasonic probe 13 is fixed at the mounting hole of the ultrasonic fixing support 304 through the ultrasonic fixing plate 307. After the head-mounted fixing mechanism is worn by the patient, the front end of the ultrasonic probe 13 faces the jaw surface of the patient. The ultrasonic fixing plate 307 and the ultrasonic fixing support 304 can be connected by bolts, and a spring 308 can be arranged at the connection position to balance the connection. The ultrasonic fixing support 304 can also be provided with a skin-friendly foam 309 at the mounting hole to improve the comfort of the patient.

[0042] A flexible liquid bag 310 is usually arranged between the ultrasonic probe 13 and the skin of the patient. The flexible liquid bag 310 is part of a circulating cooling system for removing excess heat during thermotherapy. At the same time, the flexible liquid bag 310 can closely fit the ultrasonic probe 13 and the skin of the patient, so that the ultrasonic probe 13 can adapt to irregular jaw surfaces.

[0043] The ultrasonic probe 13 is connected with signal lines, and the flexible liquid bag 310 is connected with water pipes. The signal lines and the water pipes together form a flexible connection assembly 311. The flexible connection assembly 311 extends from the rear end of the ultrasonic probe 13 and is connected with the main machine at the end to realize corresponding signal control function and circulating cooling function. Because the flexible connection assembly 311 is long and contains multiple signal lines and water pipes, after extending from the rear end of the ultrasonic probe 13, a fixing seat 312 is arranged to fix the flexible connection assembly 311 on the outside of the head-mounted fixing plate 303. The flexible connection assembly 311 is drawn out from above the head of the patient and then connected with the main machine, so as to avoid the flexible connection assembly 311 being scattered and to avoid the patient's action damaging the flexible connection assembly 311 and affecting the thermotherapy function.

[0044] It should be noted that the above content is only one of the structures of the head-mounted fixing mechanism. Those skilled in the art can improve one or more components of the head-mounted fixing mechanism or the connection mode between the components according to the needs, as long as the ultrasonic probe 13 can be fixed at a suitable position at a suitable angle for thermotherapy without the help of manpower.

[0045] Compared with the prior art, the mechanical arm between the host and the ultrasonic probe 13 is changed to a head-mounted fixing mechanism, and the ultrasonic probe 13 is fixed in the head-mounted fixing mechanism, so that the patient can also be treated for a long time when moving freely, and the medical staff does not need to manually operate for a long time during the process, and the labor cost is reduced. For the patient, the original treatment process is rigid and cannot move, and now it can move freely (such as eating and chatting), and the comfort is improved, so the above structure of the application has great practical value in clinical practice.

[0046] The ultrasonic probe 13 includes an ultrasonic transducer, and various functional components of the ultrasonic transducer are arranged in an ultrasonic transducer shell 501. The front end surface of the ultrasonic probe 13 is also the front end surface of the ultrasonic transducer shell 501. The magnetoresistance sensor assembly includes a permanent magnet piece 151 and a magnetoresistance sensor 152. The permanent magnet piece 151 is attached to the skin of the patient, and the attachment position can avoid the area where the tumor is located to avoid affecting the hyperthermia. The magnetoresistance sensor 152 is arranged on the ultrasonic probe 13, and specifically can be arranged on the outside of the front end surface of the ultrasonic transducer shell 501.

[0047] The magnetoresistance sensor 152 works by using the magnetoresistance effect, which refers to the change in resistivity of a magnetic material when it is placed in an external magnetic field. Specifically, the magnetoresistance sensor 152 contains an inductive element inside, and the permanent magnet piece 151 provides an external magnetic field. When the inductive element is affected by the external magnetic field, the resistance will change. By measuring this resistance change, the change in the magnetic field can be determined, and the change in the magnetic field is related to the distance change between the inductive element and the permanent magnet piece 151. Therefore, the data measured by the magnetoresistance sensor 152 can be converted from digital to analog, and the AD value is output to obtain the distance data between the two.

[0048] The ultrasonic probe 13 needs to emit ultrasonic waves for hyperthermia of the maxillofacial tumor. Before emitting ultrasonic waves, the front end surface of the ultrasonic probe 13 needs to be assigned ultrasonic parameters. The front end surface of the ultrasonic probe 13 is usually larger than the area of the maxillofacial tumor, but only the area where the maxillofacial tumor is located needs to be treated by hyperthermia. Therefore, in this step, the target area of the front end surface of the ultrasonic probe 13 is assigned target ultrasonic parameters. The shape and position of the target area match the maxillofacial tumor of the patient. The other areas on the front end surface except the target area are not assigned ultrasonic parameters. After the ultrasonic probe 13 is fixed in the head-mounted fixing mechanism and aligned with the maxillofacial tumor, the target area is controlled to operate at the target ultrasonic parameters, and ultrasonic waves are emitted. The other areas do not emit ultrasonic waves, so as to realize hyperthermia only on the maxillofacial tumor. In the embodiment of the application, the target ultrasonic parameters specifically refer to appropriate ultrasonic power.

[0049] S2: Obtain the initial distance data and real-time distance data of the magnetoresistance sensor and the permanent magnet piece.

[0050] In the initial state, that is, when the ultrasonic probe 13 is just placed on the maxillofacial tumor, the AD value in the magnetoresistance sensor 152 is obtained, and the initial distance data of the magnetoresistance sensor 152 and the permanent magnet piece 151 can be obtained. After the ultrasonic probe 13 is placed in the running state, the AD value in the magnetoresistance sensor 152 is obtained in real time, and the real-time distance data of the magnetoresistance sensor 152 and the permanent magnet piece 151 can be obtained.

[0051] In an embodiment, the magnetoresistance sensor includes a first magnetoresistance sensor and a second magnetoresistance sensor arranged on the outer side of the front end face, the first magnetoresistance sensor is along a first direction with a first line of the center of the front end face, the second magnetoresistance sensor is along a second direction with a second line of the center of the front end face, the first direction is perpendicular to the second direction, and S2 specifically includes:

[0052] S21: obtaining first initial distance data of the first magnetoresistance sensor and the permanent magnet piece in the first direction, and second initial distance data of the second magnetoresistance sensor and the permanent magnet piece in the second direction.

[0053] S22: obtaining initial distance data of the magnetoresistance sensor and the permanent magnet piece according to the first initial distance data and the second initial distance data.

[0054] S23: obtaining first real-time distance data of the first magnetoresistance sensor and the permanent magnet piece in the first direction, and second real-time distance data of the second magnetoresistance sensor and the permanent magnet piece in the second direction.

[0055] S24: obtaining real-time distance data of the magnetoresistance sensor and the permanent magnet piece according to the first real-time distance data and the second real-time distance data.

[0056] Generally, the offset in the same plane can be represented by two mutually perpendicular direction offset data, so as shown in Figure 5 and Figure 6 The present application can be provided with a double-axis magnetoresistance sensor, including a first magnetoresistance sensor 1521 and a second magnetoresistance sensor 1522, the first magnetoresistance sensor 1521 is along a first direction X with a first line of the center of the front end face, the second magnetoresistance sensor 1522 is along a second direction Y with a second line of the center of the front end face, the first direction X is perpendicular to the second direction Y. For convenience of representation, a two-dimensional coordinate axis is established with the center of the front end face as the coordinate origin in Figure 6 , the positive direction of the X axis is horizontally to the right, and the positive direction of the Y axis is vertically upward.

[0057] In the initial state, the initial distance data of the magnetoresistance sensor 152 and the permanent magnet piece 151 includes first initial distance data X0 of the first magnetoresistance sensor 1521 and the permanent magnet piece 151 in the first direction X and second initial distance data Y0 of the second magnetoresistance sensor 1522 and the permanent magnet piece 151 in the second direction Y.

[0058] In the subsequent running state, the real-time distance data of the magnetoresistance sensor 152 and the permanent magnet piece 151 includes first real-time distance data X1 of the first magnetoresistance sensor 1521 and the permanent magnet piece 151 in the first direction X and second real-time distance data Y1 of the second magnetoresistance sensor 1522 and the permanent magnet piece 151 in the second direction Y.

[0059] S3: obtaining real-time offset data of the ultrasonic probe and the maxillofacial tumor according to the initial distance data and the real-time distance data.

[0060] The initial distance data is used to reflect the distance between the magnetoresistance sensor 152 and the permanent magnet piece 151 in the initial state, and the real-time distance data is used to reflect the distance between the magnetoresistance sensor 152 and the permanent magnet piece 151 in the hyperthermia process. According to the two, the real-time offset data of the magnetoresistance sensor 152 and the permanent magnet piece 151 in the hyperthermia process can be obtained. Since the magnetoresistance sensor 152 is fixed on the ultrasonic probe 13, and the permanent magnet piece 151 is fixed on the skin of the patient, the real-time offset data between the two is also the real-time offset data between the ultrasonic probe 13 and the maxillofacial tumor 22.

[0061] In an embodiment, the ultrasonic probe includes a phased array ultrasonic transducer, and the phased array ultrasonic transducer includes a plurality of ultrasonic units arranged in an array. S3 specifically includes:

[0062] S31: calculating a distance difference value of the real-time distance data and the initial distance data.

[0063] S32: determining an offset direction of the ultrasonic probe relative to the maxillofacial tumor according to a positive and negative of the distance difference value.

[0064] S33: obtaining a pitch value of adjacent ultrasonic units.

[0065] S34: determining a target number of ultrasonic units of the ultrasonic probe offset relative to the maxillofacial tumor according to a ratio of an absolute value of the distance difference value to the pitch value.

[0066] To achieve precise treatment of the maxillofacial tumor, and the position and shape of the target region can be flexibly adjusted, the ultrasonic probe 13 of the present application includes a phased array ultrasonic transducer, such as Figure 6As shown, the phased array ultrasonic transducer includes a plurality of ultrasonic units 100 arranged in an array, which means that the plurality of ultrasonic units 100 in each row is arranged in a first direction X with a first spacing value Xmin, and the plurality of ultrasonic units 100 in each column is arranged in a second direction Y with a second spacing value Ymin, wherein the first spacing value Xmin refers to the distance between the centers of two adjacent ultrasonic units 100 in the first direction X, which is equal to or slightly greater than the width value of the ultrasonic unit 100 in the first direction X, and the second spacing value Ymin refers to the distance between the centers of two adjacent ultrasonic units 100 in the second direction Y, which is equal to or slightly greater than the width value of the ultrasonic unit 100 in the second direction Y. The values of the first spacing value Xmin and the second spacing value Ymin can be equal or not equal, which can be set according to actual needs.

[0067] In this step, the distance difference between the real-time distance and the initial distance is calculated, and taking the dual-axis magnetic resistance sensor as an example, the distance difference includes a first distance difference X1-X0 in the first direction X and a second distance difference Y1-Y0 in the second direction Y. When the value of the first distance difference X1-X0 is positive, it indicates that the offset direction of the first magnetic resistance sensor 1521 to the permanent magnet piece 151 in the first direction X is horizontally to the right, and vice versa; when the value of the second distance difference Y1-Y0 is positive, it indicates that the offset direction of the second magnetic resistance sensor 1522 to the permanent magnet piece 151 in the second direction Y is vertically upward, and vice versa.

[0068] The spacing value of adjacent ultrasonic units includes the first spacing value Xmin and the second spacing value Ymin. When moving the target area, specifically moving each ultrasonic unit in the target area, the minimum value of each ultrasonic unit that can be moved in the first direction X is the first spacing value Xmin, and the minimum value of each ultrasonic unit that can be moved in the second direction Y is the second spacing value Ymin, indicating that the minimum moving amount each time is one ultrasonic unit. Therefore, the ratio of the absolute value of the distance difference to the spacing value can be calculated, and this ratio is used to represent the target number of ultrasonic units that are offset relative to the maxillofacial tumor. The ratio specifically includes a first target number m in the horizontal direction and a second target number n in the vertical direction, wherein m=|X1-X0| / Xmin, n=|Y1-Y0| / Ymin. When the values of m and n are not integers, rounding is used to determine the corresponding values.

[0069] S4: Adjust the position of the target area according to the real-time offset data until the adjusted target area position matches the maxillofacial tumor of the patient, and control the adjusted target area to operate with the target ultrasonic parameters.

[0070] After the ultrasound probe 13 shifts from the maxillofacial tumor 22, the original target area of ​​the probe 13 will no longer correspond to the tumor. This results in a situation where part of the tumor 22 is not irradiated by ultrasound, while some non-lesion tissue is irradiated. This not only affects the thermotherapy effect but also carries the risk of damaging normal tissue. In this step, the position of the target area can be adjusted based on real-time shift data to ensure it still matches the maxillofacial tumor 22. Then, by controlling the adjusted target area to operate with the same target ultrasound parameters as in S1, thermotherapy can be applied only to the maxillofacial tumor 22. Through this process, the system can automatically and accurately track the shift of the maxillofacial tumor 22 based on real-time shift data.

[0071] In one embodiment, S4 specifically includes:

[0072] S41: Using all ultrasound units within the target area as initial ultrasound units, and based on the offset direction and the number of targets, determine the ultrasound units on the front face that are spaced apart from each initial ultrasound unit by a number of target spacing values ​​in the offset direction as target ultrasound units.

[0073] S42: Determine the area where all target ultrasound units are located as the adjusted target area.

[0074] like Figure 6 As shown, the shaded area enclosed by a solid circle represents the target area in the initial state, and the shaded area enclosed by a dashed circle represents the target area in the subsequent operating state. In the initial state, all ultrasonic units within the target area are initial ultrasonic units. After determining the offset direction and the number of targets, for each initial ultrasonic unit, its corresponding target ultrasonic unit is determined. The target ultrasonic unit is the ultrasonic unit that is separated from the initial ultrasonic unit by the number of target spacing values ​​in the offset direction. For example, in the initial state, there is an initial ultrasonic unit A in the target area. After the above calculation, the offset direction on the X-axis is horizontal to the right, and the first target offset m is 3. The offset direction on the Y-axis is vertical upward, and the second target offset n is 2. Then, the initial ultrasonic unit A corresponds to the target ultrasonic unit B. The target ultrasonic unit B is separated from the initial ultrasonic unit A by 3 ultrasonic units in the horizontal right direction and by 2 ultrasonic units in the vertical upward direction.

[0075] For each initial ultrasound unit A, a corresponding target ultrasound unit B is determined according to the above steps. All target ultrasound units B form the adjusted target area. By controlling all target ultrasound units B within the adjusted target area to operate with the target ultrasound parameters, the same thermotherapy effect as in the initial state can be achieved.

[0076] In the prior art, the ultrasonic probe usually adopts a single ultrasonic transducer for hyperthermia treatment. The single transducer can only emit ultrasound through the entire end face at the same time, and cannot accurately match the shape and position of the maxillofacial tumor. By using a phased array ultrasonic transducer, the application can adjust the focusing area of the ultrasonic wave in real time by distributing or not distributing ultrasonic parameters to each ultrasonic unit, so as to match the arbitrary shape and position of the maxillofacial tumor. Further, by combining the magnetoresistive sensor assembly with the phased array technology, the position change of the maxillofacial tumor can be dynamically tracked and the position of the ultrasonic focusing area can be adjusted in real time, achieving precise treatment.

[0077] In one embodiment, the head-mounted maxillofacial tumor hyperthermia system further comprises a pressure adjusting assembly, the pressure adjusting assembly comprising a pressure sensor and a pressure control motor, and further comprising the following steps after S1:

[0078] S5: obtaining a real-time pressure value between the ultrasonic probe and the body surface skin from the pressure sensor.

[0079] S6: determining whether the real-time pressure value is within a preset pressure range.

[0080] S7: If not, drive the pressure control motor to rotate and drive the front end face of the ultrasonic probe to move in a direction perpendicular to the body surface skin until the pressure value between the ultrasonic probe and the body surface skin is within the preset pressure range.

[0081] After the patient moves, in addition to causing the maxillofacial tumor 22 to deviate from the ultrasonic probe 13 in the plane of the body surface skin, it is also possible to deviate in a direction perpendicular to the body surface skin, causing the ultrasonic probe 13 to be too tight or too loose with the body surface skin, both of which will affect the treatment. Therefore, the application can also be provided with a pressure adjusting assembly, as shown in Figure 5 The pressure adjusting assembly comprises a pressure sensor 502, a pressure control motor 503 and a pressure control motor push plate 505. The pressure sensor 502 is arranged at the front end face of the ultrasonic transducer housing 501. The ultrasonic transducer housing 501 is provided with a pressure hole 504 at the arrangement area of the pressure sensor 502. The pressure control motor 503 extends into the pressure hole 504 to apply pressure to the front end face of the ultrasonic probe 13. The pressure value is sensed by the pressure sensor 502. The pressure control motor push plate 505 can control the rotation of the pressure control motor 503, thereby affecting the size of the generated pressure.

[0082] In this step, after S1, the real-time pressure value P1 between the ultrasonic probe 13 and the body surface skin 21 is obtained from the pressure sensor 502, and it is judged whether the real-time pressure value P1 is located in the preset pressure range. The preset pressure range can be set according to the needs of the heat therapy, for example, the ideal pressure value P0 and P0±10% are the preset pressure range. If the judgment result is no, the pressure control motor 503 is driven to rotate, driving the front end surface of the ultrasonic probe 13 to move in the direction perpendicular to the body surface skin 21 until the pressure value between the ultrasonic probe 13 and the body surface skin 21 is located in the preset pressure range.

[0083] In the prior art, the fitting degree of the ultrasonic probe 13 in the direction perpendicular to the body surface skin 21 is only controlled by manual operation of medical personnel, which has great uncertainty and may have safety hazards. In this application, by integrating a thin film pressure sensor at the front end of the ultrasonic probe 13 and automatically adjusting the position by the rear-end motor, the constant fitting pressure can be ensured, and the automatic tracking and accurate adjustment of the offset of the ultrasonic probe 13 and the maxillofacial tumor in the direction perpendicular to the body surface skin can be realized.

[0084] In an embodiment, S7 specifically includes:

[0085] S71: If the real-time pressure value is greater than the maximum pressure value in the preset pressure range, the pressure control motor is driven to rotate reversely, driving the front end surface of the ultrasonic probe to move away from the body surface skin, so that the pressure value between the ultrasonic probe and the body surface skin is not greater than the maximum pressure value.

[0086] S72: If the real-time pressure value is less than the minimum pressure value in the preset pressure range, the pressure control motor is driven to rotate forwardly, driving the front end surface of the ultrasonic probe to move close to the body surface skin, until the pressure value between the ultrasonic probe and the body surface skin is not less than the minimum pressure value.

[0087] When adjusting the pressure, if the real-time pressure value P1 is greater than the maximum pressure value in the preset pressure range, that is, higher than 10% of the ideal pressure value P0, the pressure control motor 503 is driven to rotate reversely, driving the front end surface of the ultrasonic probe 13 to move away from the body surface skin 21. After moving, the two gradually transition from tight fitting to loose fitting, and the pressure value between them will gradually decrease until it is not higher than 10% of P0, which is in the normal pressure range. If the real-time pressure value P1 is less than the minimum pressure value in the preset pressure range, that is, lower than 10% of the ideal pressure value P0, the pressure control motor 503 is driven to rotate forwardly, driving the front end surface of the ultrasonic probe 13 to move close to the body surface skin 21. After moving, the two gradually transition from loose fitting to tight fitting, and the pressure value between them will gradually increase until it is not lower than 10% of P0, which is in the normal pressure range. When in the normal pressure range, the pressure control motor 503 stops rotating.

[0088] In an embodiment, before S1, further comprising:

[0089] Sa: Obtain CT / MRT data of the maxillofacial tumor of the patient.

[0090] Sb: Determine the partition parameters of the front end surface according to the CT / MRT data.

[0091] The partition parameters refer to parameters related to the division of the target region, including the shape and position of the target region. In this embodiment, the CT / MRT data of the maxillofacial tumor can be obtained first, and the physical shape and position data of the maxillofacial tumor can be formed according to these data. The shape and position of the tumor can be accurately determined according to these data, and then the shape and position of the target region can be determined. Since the division of the target region is closely related to the shape, size, distribution, etc. of the maxillofacial tumor, the shape and position of the maxillofacial tumor determined by the CT / MRT data are relatively accurate. The partition parameters determined on the basis of this data can make the division of the target region more reasonable, and the matching degree of the target region and the maxillofacial tumor is also higher, and the hyperthermia is also more accurate.

[0092] From the above embodiment, it can be seen that the control method of the ultrasonic probe provided by the present application changes the mechanical arm between the host and the ultrasonic probe to a head-mounted fixing mechanism, and fixes the ultrasonic probe in the head-mounted fixing mechanism, so that the patient can also receive hyperthermia for a long time when moving freely, and the medical staff does not need to manually operate for a long time during the process, and the labor cost is reduced. In addition, by setting the magnetic resistance sensor assembly, the offset data between the ultrasonic probe and the maxillofacial tumor can be read in real time, and the position of the target region in the front end surface of the ultrasonic probe is adjusted based on this. After the maxillofacial tumor deviates from the initial position due to the action of the patient, the moving maxillofacial tumor can be accurately tracked. Compared with manual tracking, the accuracy of this method is greatly improved, and during the tracking process, the head-mounted fixing mechanism and the ultrasonic probe itself do not need to move, only the position of the target region needs to be moved, and the target region after moving needs to be controlled to continue operating with the target ultrasonic parameters, so the operation cost is also low. Therefore, the present application can realize accurate and low-cost tracking after the maxillofacial tumor of the patient deviates.

[0093] As Figure 7 shown, Figure 7 is a second flowchart of the control method of the ultrasonic probe provided by the present application, and the working process in the above embodiment will be described as a whole. Figure 7

[0094] ​First, CT / MRT data of a patient's maxillofacial tumor is acquired, physical shape position data of the maxillofacial tumor is acquired according to the CT / MRT data, target ultrasound parameters are assigned to the target area at the front end of the ultrasound probe according to the data, and no ultrasound parameters are assigned to other areas, then the ultrasound probe is fixed on the patient's head through a head-mounted fixing mechanism, the front end of the ultrasound probe faces the patient's body surface skin, and the target area is aligned with the maxillofacial tumor, and the shapes and positions of the two are matched.

[0095] For the offset of the maxillofacial tumor in the plane of the body surface skin, a magnetic resistance sensor provided on the ultrasound probe and a permanent magnet piece attached to the body surface skin are used to track the offset. Specifically, in the initial state, the initial distance data between the magnetic resistance sensor and the permanent magnet piece is acquired, and in the subsequent hyperthermia process, the real-time distance data between the magnetic resistance sensor and the permanent magnet piece is acquired, and the real-time offset data of the two can be calculated according to the difference between the two. Finally, according to the real-time offset data, the position of the target area is adjusted in combination with the phased array technology, so that the adjusted target area position still matches the position of the maxillofacial tumor, and the adjusted target area is controlled to operate at the target ultrasound parameters, thereby achieving automatic and accurate tracking in the plane of the body surface skin. The above steps are executed in a loop to perform real-time tracking.

[0096] For the offset of the maxillofacial tumor in the direction perpendicular to the body surface skin, a pressure sensor provided on the ultrasound probe and a pressure control motor are used to track the offset. Specifically, during the hyperthermia process, the real-time pressure value between the ultrasound probe and the body surface skin is acquired by the pressure sensor, and it is judged whether the real-time pressure value is within the preset pressure range. If not, when the pressure is too large, the pressure control motor is driven to reverse, so that the ultrasound probe gradually moves away from the body surface skin, the pressure gradually decreases, and the pressure gradually increases until it is within the preset pressure range. When the pressure is too small, the pressure control motor is driven to rotate forward, so that the ultrasound probe gradually approaches the body surface skin, the pressure gradually increases, and the pressure gradually increases until it is within the preset pressure range. If yes, the pressure control motor is stopped, and the ultrasound probe maintains the current adhesion, keeping the pressure moderate. The above steps are executed in a loop to perform real-time tracking.

[0097] Through the above process, the technical problem that the maxillofacial tumor is difficult to accurately and low-cost track after the offset of the current maxillofacial tumor hyperthermia system can be alleviated.

[0098] On the basis of the method described in the above embodiment, this embodiment will be further described from the perspective of a control device of an ultrasonic probe, which is suitable for a maxillofacial tumor hyperthermia system, the head-mounted maxillofacial tumor hyperthermia system comprising a head-mounted fixing mechanism, an ultrasonic probe and a magnetoresistance sensor assembly, the head-mounted fixing mechanism being fixed on a patient's head, the ultrasonic probe being fixed in the head-mounted fixing mechanism, and a front end surface of the ultrasonic probe facing a body surface skin, the magnetoresistance sensor assembly comprising a permanent magnet sheet and a magnetoresistance sensor, the permanent magnet sheet being attached to the body surface skin, and the magnetoresistance sensor being arranged on the ultrasonic probe. Please refer to Figure 8 , the control device of the ultrasonic probe can comprise:

[0099] a first control module 10, configured to assign a target ultrasonic parameter to a target region of the front end surface, and control the target region to operate at the target ultrasonic parameter, the shape and position of the target region being matched with a maxillofacial tumor of a patient;

[0100] a first acquisition module 20, configured to acquire initial distance data and real-time distance data of the magnetoresistance sensor and the permanent magnet sheet;

[0101] a first obtaining module 30, configured to obtain real-time offset data of the ultrasonic probe and the maxillofacial tumor according to the initial distance data and the real-time distance data;

[0102] a second control module 40, configured to adjust the position of the target region according to the real-time offset data until the position of the adjusted target region is matched with the maxillofacial tumor of the patient, and control the adjusted target region to operate at the target ultrasonic parameter.

[0103] In an embodiment, the head-mounted maxillofacial tumor hyperthermia system further comprises a pressure adjusting assembly, the pressure adjusting assembly comprising a pressure sensor and a pressure control motor, and the control device further comprises:

[0104] a second acquisition module, configured to acquire a real-time pressure value between the ultrasonic probe and the body surface skin from the pressure sensor;

[0105] a judgment module, configured to judge whether the real-time pressure value is within a preset pressure range;

[0106] a driving module, configured to drive the pressure control motor to rotate and drive the front end surface of the ultrasonic probe to move in a direction perpendicular to the body surface skin until the pressure value between the ultrasonic probe and the body surface skin is within the preset pressure range, if not.

[0107] In an embodiment, the driving module comprises:

[0108] The first driving unit is configured to drive the pressure control motor to rotate reversely to drive the front end surface of the ultrasonic probe to move away from the body surface skin if the real-time pressure value is greater than the maximum pressure value in the preset pressure range, so that the pressure value between the ultrasonic probe and the body surface skin is not greater than the maximum pressure value.

[0109] The second driving unit is configured to drive the pressure control motor to rotate forward to drive the front end surface of the ultrasonic probe to move close to the body surface skin if the real-time pressure value is less than the minimum pressure value in the preset pressure range, until the pressure value between the ultrasonic probe and the body surface skin is not less than the minimum pressure value.

[0110] In an embodiment, the magnetic resistance sensor includes a first magnetic resistance sensor and a second magnetic resistance sensor arranged outside the front end surface, the first magnetic resistance sensor is along a first direction with a first line of the center of the front end surface, the second magnetic resistance sensor is along a second direction with a second line of the center of the front end surface, the first direction is perpendicular to the second direction, and the first obtaining module 30 includes:

[0111] The first obtaining unit is configured to obtain first initial distance data of the first magnetic resistance sensor and the permanent magnet piece in the first direction and second initial distance data of the second magnetic resistance sensor and the permanent magnet piece in the second direction.

[0112] The first obtaining unit is configured to obtain first initial distance data of the first magnetic resistance sensor and the permanent magnet piece in the first direction and second initial distance data of the second magnetic resistance sensor and the permanent magnet piece in the second direction.

[0113] The second obtaining unit is configured to obtain first real-time distance data of the first magnetic resistance sensor and the permanent magnet piece in the first direction and second real-time distance data of the second magnetic resistance sensor and the permanent magnet piece in the second direction.

[0114] The second obtaining unit is configured to obtain first real-time distance data of the first magnetic resistance sensor and the permanent magnet piece in the first direction and second real-time distance data of the second magnetic resistance sensor and the permanent magnet piece in the second direction.

[0115] In an embodiment, the ultrasonic probe includes a phased array ultrasonic transducer, the phased array ultrasonic transducer includes a plurality of ultrasonic units arranged in an array, and the first obtaining module 30 includes:

[0116] The calculating unit is configured to calculate a distance difference value of the real-time distance data and the initial distance data.

[0117] The first determining unit is configured to determine an offset direction of the ultrasonic probe relative to the maxillofacial tumor according to a positive or negative of the distance difference value.

[0118] a third obtaining unit, configured to obtain a spacing value of adjacent ultrasonic units;

[0119] a second determining unit, configured to determine a target number of ultrasonic units of the ultrasonic probe deviated from the maxillofacial tumor according to a ratio of an absolute value of the distance difference value to the spacing value.

[0120] In an embodiment, the second control module 40:

[0121] a third determining unit, configured to take all the ultrasonic units in the target region as initial ultrasonic units, and determine, according to the deviation direction and the target number, ultrasonic units in the front end face that are spaced apart from each initial ultrasonic unit by the target number of spacing values in the deviation direction as target ultrasonic units;

[0122] a fourth determining unit, configured to determine a region in which all the target ultrasonic units are located as an adjusted target region.

[0123] In an embodiment, the control device further comprises:

[0124] a second obtaining module, configured to obtain CT / MRT data of a maxillofacial tumor of a patient;

[0125] a determining module, configured to determine partition parameters of the front end face according to the CT / MRT data.

[0126] Compared with the prior art, the control device of the ultrasonic probe provided in the application changes the mechanical arm between the host computer and the ultrasonic probe to a head-mounted fixing mechanism, and fixes the ultrasonic probe in the head-mounted fixing mechanism, so that the patient can also receive hyperthermia for a long time when moving freely, and the medical staff does not need to manually operate for a long time during the process, so that the labor cost is reduced. In addition, by arranging the magnetoresistance sensor assembly, the deviation data between the ultrasonic probe and the maxillofacial tumor can be read in real time, so that the position of the target region in the front end face of the ultrasonic probe is adjusted. After the maxillofacial tumor deviates from the initial position due to the action of the patient, the moving maxillofacial tumor can be accurately tracked. Compared with manual tracking, the accuracy is greatly improved, and during the tracking process, the head-mounted fixing mechanism and the ultrasonic probe itself do not need to move, only the position of the target region needs to be moved, and the target region after moving continues to operate with the target ultrasonic parameters, so that the operation cost is also low. Therefore, the application can realize accurate and low-cost tracking after the maxillofacial tumor of the patient deviates.

[0127] Correspondingly, the application further provides an electronic device which can be arranged in a head-mounted maxillofacial tumor hyperthermia system. The head-mounted maxillofacial tumor hyperthermia system comprises a head-mounted fixing mechanism, an ultrasonic probe and a magnetoresistance sensor assembly. The head-mounted fixing mechanism is fixed on the head of a patient. The ultrasonic probe is fixed in the head-mounted fixing mechanism, and the front end surface of the ultrasonic probe faces the skin of the body surface. The magnetoresistance sensor assembly comprises a permanent magnet sheet and a magnetoresistance sensor. The permanent magnet sheet is attached to the skin of the body surface. The magnetoresistance sensor is arranged on the ultrasonic probe.

[0128] As shown in Figure 9 The electronic device can include a radio frequency (RF) circuit 101, a memory 102 including one or more computer readable storage media, an input unit 103, a display unit 104, a sensor 105, an audio circuit 106, a WiFi module 107, a processor 108 including one or more processing cores, and a power supply 109, etc. Those skilled in the art can understand that the electronic device structure shown in the Figure 9 application does not constitute a limitation on the electronic device, and can include more or fewer components than shown, or combine certain components, or different component arrangements. Among them:

[0129] The RF circuit 101 can be used for receiving and sending signals in the process of information or call. In particular, the downlink information of the base station is received and handed over to one or more processors 108 for processing. In addition, the data related to the uplink is sent to the base station. The memory 102 can be used to store software programs and modules. The processor 108 executes various functions and applications by running the software programs and modules stored in the memory 102.

[0130] The display unit 104 can be used to display the information input by the user or the information provided to the user and the various graphical user interfaces of the server, which can be composed of graphics, text, icons, video and any combination thereof.

[0131] The electronic device can further include at least one sensor 105, such as a light sensor, a motion sensor and other sensors. The audio circuit 106 includes a speaker, which can provide an audio interface between the user and the electronic device.

[0132] WiFi belongs to wireless transmission technology. The WiFi module 107 can help the user to send and receive emails, browse web pages and follow streaming media, etc. It provides the user with wireless broadband Internet access. Although Figure 9A WiFi module 107 is shown, but it is understood that it is not an essential component of the electronic device and can be omitted as needed without changing the nature of the application.

[0133] The processor 108 is the control center of the electronic device, connecting all parts of the mobile phone through various interfaces and lines, executing various functions of the electronic device and processing data by running or executing software programs and / or modules stored in the memory 102 and calling data stored in the memory 102, thereby monitoring the mobile phone as a whole.

[0134] The electronic device also includes a power supply 109 (such as a battery) for powering various components. Preferably, the power supply can be logically connected to the processor 108 through a power management system, so that the power management system can realize functions such as charge management, discharge management, and power consumption management.

[0135] Although not shown, the electronic device can also include a camera, a Bluetooth module, etc., which will not be described here. In the present embodiment, the processor 108 in the server will load one or more executable files corresponding to the processes of one or more application programs into the memory 102 according to the following instructions, and run the application programs stored in the memory 102 by the processor 108, thereby realizing the following functions:

[0136] Assigning a target ultrasonic parameter to a target area of the front surface, and controlling the target area to operate at the target ultrasonic parameter, the shape and position of the target area matching the maxillofacial tumor of the patient;

[0137] Obtaining initial distance data and real-time distance data of the magnetic resistance sensor and the permanent magnet piece;

[0138] According to the initial distance data and the real-time distance data, obtaining real-time offset data of the ultrasonic probe and the maxillofacial tumor;

[0139] According to the real-time offset data, adjusting the position of the target area until the adjusted target area position matches the maxillofacial tumor of the patient, and controlling the adjusted target area to operate at the target ultrasonic parameter.

[0140] The electronic device provided in the present application can realize accurate and low-cost tracking after the maxillofacial tumor of the patient is offset.

[0141] In the above embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the detailed description above, which will not be repeated here.

[0142] Those skilled in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructions or by controlling relevant hardware by instructions, which can be stored in a computer readable storage medium and loaded and executed by a processor.

[0143] To this end, the embodiment of the present application provides a computer readable storage medium, which can be arranged in a head-mounted maxillofacial tumor hyperthermia system, the head-mounted maxillofacial tumor hyperthermia system comprising a head-mounted fixing mechanism, an ultrasonic probe and a magnetoresistance sensor assembly, the head-mounted fixing mechanism being fixed on the head of a patient, the ultrasonic probe being fixed in the head-mounted fixing mechanism, and the front end surface of the ultrasonic probe facing the body surface skin, the magnetoresistance sensor assembly comprising a permanent magnet sheet and a magnetoresistance sensor, the permanent magnet sheet being attached to the body surface skin, and the magnetoresistance sensor being arranged on the ultrasonic probe.

[0144] The computer readable storage medium stores a plurality of instructions, which can be loaded by a processor to implement the following functions:

[0145] allocating a target ultrasonic parameter for a target region of the front end surface, and controlling the target region to operate at the target ultrasonic parameter, the shape and position of the target region being matched with the maxillofacial tumor of the patient;

[0146] obtaining initial distance data and real-time distance data of the magnetoresistance sensor and the permanent magnet sheet;

[0147] obtaining real-time offset data of the ultrasonic probe and the maxillofacial tumor according to the initial distance data and the real-time distance data;

[0148] adjusting the position of the target region according to the real-time offset data until the position of the adjusted target region is matched with the maxillofacial tumor of the patient, and controlling the adjusted target region to operate at the target ultrasonic parameter.

[0149] The computer readable storage medium provided by the present application can realize accurate and low-cost tracking after the maxillofacial tumor of the patient is offset.

[0150] The above describes in detail the control method, device, electronic device and computer readable storage medium of the ultrasonic probe provided by the embodiment of the present application, and the principle and implementation manner of the present application are described by applying specific examples; the person skilled in the art should understand that the technical solutions recorded in the above embodiments can be modified or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A control device for an ultrasonic probe, characterized in that, The device is applicable to a head-mounted hyperthermia system for maxillofacial tumors. The head-mounted hyperthermia system includes a head-mounted fixation mechanism, an ultrasound probe, and a magnetoresistive sensor assembly. The head-mounted fixation mechanism is fixed to the patient's head. The ultrasound probe is fixed within the head-mounted fixation mechanism, with its front end facing the skin. The front end is larger than the area of ​​the maxillofacial tumor. The magnetoresistive sensor assembly includes a permanent magnet and a magnetoresistive sensor. The permanent magnet is attached to the skin. The magnetoresistive sensor is mounted on the ultrasound probe and includes a first magnetoresistive sensor and a second magnetoresistive sensor located on the outer side of the front end. A first line connecting the first magnetoresistive sensor to the center of the front end is along a first direction, and a second line connecting the second magnetoresistive sensor to the center of the front end is along a second direction. The first direction is perpendicular to the second direction. The ultrasound probe includes a phased array ultrasound transducer, which includes multiple ultrasound units arranged in an array. The device includes: The first control module is used to assign target ultrasound parameters to the target area of ​​the front face and control the target area to operate with the target ultrasound parameters. The shape and position of the target area are matched with the patient's maxillofacial tumor. A first acquisition module is configured to acquire first initial distance data between the first magnetoresistive sensor and the permanent magnet sheet in the first direction, and second initial distance data between the second magnetoresistive sensor and the permanent magnet sheet in the second direction; obtain initial distance data between the magnetoresistive sensor and the permanent magnet sheet based on the first initial distance data and the second initial distance data; acquire first real-time distance data between the first magnetoresistive sensor and the permanent magnet sheet in the first direction, and second real-time distance data between the second magnetoresistive sensor and the permanent magnet sheet in the second direction; and obtain real-time distance data between the magnetoresistive sensor and the permanent magnet sheet based on the first real-time distance data and the second real-time distance data. The first module is used to calculate the distance difference between the real-time distance data and the initial distance data; determine the offset direction of the ultrasound probe relative to the maxillofacial tumor based on the sign of the distance difference; obtain the spacing value of adjacent ultrasound units; determine the target number of ultrasound units that the ultrasound probe is offset from the maxillofacial tumor based on the ratio of the absolute value of the distance difference to the spacing value, and obtain the real-time offset data between the ultrasound probe and the maxillofacial tumor. The second control module is used to adjust the position of the target area according to the real-time offset data until the adjusted target area position matches the patient's maxillofacial tumor, and to control the adjusted target area to operate with the target ultrasound parameters.

2. The control device for the ultrasonic probe according to claim 1, characterized in that, The head-mounted maxillofacial tumor hyperthermia system further includes a pressure regulation component, which includes a pressure sensor and a pressure control motor. The control device also includes: The second acquisition module is used to acquire the real-time pressure value between the ultrasound probe and the skin from the pressure sensor; The judgment module is used to determine whether the real-time pressure value is within a preset pressure range; The drive module is used to drive the pressure control motor to rotate, thereby moving the front end of the ultrasound probe in a direction perpendicular to the skin until the pressure value between the ultrasound probe and the skin is within the preset pressure range.

3. The control device for the ultrasonic probe according to claim 2, characterized in that, The driver module includes: The first driving unit is used to drive the pressure control motor to rotate in the opposite direction if the real-time pressure value is greater than the maximum pressure value within the preset pressure range, thereby moving the front end face of the ultrasound probe away from the skin surface so that the pressure value between the ultrasound probe and the skin surface is not greater than the maximum pressure value. The second driving unit is used to drive the pressure control motor to rotate in the forward direction if the real-time pressure value is less than the minimum pressure value within the preset pressure range, thereby moving the front end of the ultrasound probe along the direction close to the skin until the pressure value between the ultrasound probe and the skin is not less than the minimum pressure value.

4. The control device for the ultrasonic probe according to claim 1, characterized in that, The second control module includes: The third determining unit is used to take all ultrasound units in the target area as initial ultrasound units, and determine the ultrasound units in the front end face that are spaced apart from each of the initial ultrasound units by the target number of spacing values ​​in the offset direction as target ultrasound units according to the offset direction and the target number. The fourth determining unit is used to determine the area where all the target ultrasound units are located as the adjusted target area.

5. The control device for the ultrasonic probe according to claim 1, characterized in that, The control device further includes: The second acquisition module is used to acquire CT / MRT data of the patient's maxillofacial tumors; The determination module is used to determine the partition parameters of the front end face based on the CT / MRT data.

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