Ultrasonic therapeutic apparatus

Abstract

The embodiment of the invention provides an ultrasonic therapeutic apparatus which is used for dissipating heat generated by focused ultrasonic signals, so that pain caused by heat in tissues is avoided. The ultrasonic therapeutic apparatus provided by the embodiment of the invention comprises a handle part and a cylindrical therapeutic head which are connected with each other, and an elastic bag which sleeves the outer wall of the cylindrical therapeutic head, the cylindrical treatment head is provided with a closed inner cavity, a focused ultrasonic transducer is arranged in the inner cavity, and ultrasonic transmitting windows are formed in the opposite faces of the inner cavity and the focused ultrasonic transducer so that the focused ultrasonic transducer can transmit focused ultrasonic signals through the corresponding ultrasonic transmitting windows. The focused ultrasonic signal is used for treating tissue at a preset position; and if the ultrasonic therapeutic apparatus is in the working state, injecting a liquid medium into the elastic bag, so that the liquid medium dissipates heat generated by the focused ultrasonic signal at the tissue at the preset position.

Description

Technical Field

[0001] This invention relates to the field of ultrasound technology, and more particularly to an ultrasound therapy device. Background Technology

[0002] For conditions such as vaginal laxity and urinary incontinence, current treatment methods mainly include invasive and non-invasive treatments. Among them, non-invasive treatments, such as exercise therapy and drug therapy, are highly safe, but they are slow to take effect and have little effect on moderate to severe cases. Invasive treatments initially included laser therapy and radiofrequency therapy, and in recent years, ultrasound therapy has been proposed.

[0003] For cavity treatment, ultrasound therapy has a unique advantage because it can directly focus on deep tissues and avoid excessive heat generation in the epidermis that could cause wounds.

[0004] However, similar to other energy source therapies, ultrasound therapy generates a lot of heat, both inside the tissue and in the ultrasound transducer itself, which can cause significant pain for patients during treatment. Summary of the Invention

[0005] This invention provides an ultrasonic therapy device, which uses an elastic bladder fitted on the outer wall of a cylindrical treatment head. When the ultrasonic therapy device is in operation, a liquid medium is injected into the elastic bladder to dissipate the heat generated by the focused ultrasonic signal, thereby avoiding pain caused by heat inside the tissue.

[0006] This application provides an ultrasonic therapy device, including:

[0007] The connected handle and cylindrical treatment head, and the elastic bladder fitted on the outer wall of the cylindrical treatment head;

[0008] The cylindrical treatment head has a closed inner cavity, in which a focused ultrasound transducer is installed. Ultrasonic emission windows are opened on the opposite surfaces of the inner cavity and the focused ultrasound transducer, so that the focused ultrasound transducer can emit focused ultrasound signals through the corresponding ultrasound emission windows. The focused ultrasound signals are used to treat tissues at preset locations.

[0009] If the ultrasound therapy device is in operation, a liquid medium is injected into the elastic capsule so that the liquid medium dissipates the heat generated by the focused ultrasound signal at the tissue at the preset location.

[0010] As an alternative embodiment, the ultrasound therapy device also includes: a pump, a piping structure, and a liquid medium carrier, wherein the liquid medium circulates within the piping structure.

[0011] As an optional embodiment, the inner cavity is provided with a fixing bracket along the axial direction of the cylindrical treatment head, and the fixing bracket is connected to multiple focused ultrasound transducers in the axial direction and / or circumferential direction respectively.

[0012] As an optional embodiment, the fixed support includes a solid fixed support, and the pump is connected to the liquid medium carrying device and the elastic bladder through a pipeline structure to draw liquid medium from the liquid medium carrying device and inject the liquid medium into the elastic bladder, so as to realize the circulation of liquid medium in the liquid medium carrying device and the elastic bladder through the pipeline structure.

[0013] As an optional embodiment, the fixation bracket includes a hollow fixation bracket, with one end of the hollow fixation bracket away from the handle portion being connected through to the end of the cylindrical treatment head;

[0014] The pump is connected to the liquid medium carrier and the hollow fixed support through a pipeline structure to draw liquid medium from the liquid medium carrier and inject the liquid medium into the central fixed support, so as to realize the circulation of the liquid medium in the liquid medium carrier, the hollow fixed support and the elastic bladder through the pipeline structure.

[0015] As an optional embodiment, the ultrasound therapy device further includes:

[0016] A radiator connected to the liquid medium carrying device and / or to the piping structure, wherein the radiator is used to dissipate heat within the liquid medium.

[0017] As an optional embodiment, the ultrasound therapy device further includes:

[0018] A temperature sensor is disposed on the outer wall of the cylindrical treatment head and is located adjacent to the ultrasonic emission window. The temperature sensor is used to sense the temperature of the liquid medium inside the elastic capsule.

[0019] As an optional embodiment, the ultrasound therapy device further includes: a controller electrically connected to the heat sink and the temperature sensor, respectively;

[0020] The controller is used for:

[0021] The temperature of the liquid medium inside the elastic bladder is obtained by a temperature sensor, and when the temperature is greater than a first threshold, the radiator is controlled to dissipate heat from the liquid medium.

[0022] As an optional embodiment, the ultrasound therapy device further includes:

[0023] A pressure sensor is installed inside the elastic bladder, which is used to obtain the pressure inside the liquid medium.

[0024] As an optional embodiment, the ultrasound therapy device further includes a controller, wherein the controller is electrically connected to the pressure sensor;

[0025] The controller is used for:

[0026] The pressure value of the liquid medium inside the elastic capsule is obtained by a pressure sensor, and the focused ultrasound transducer is controlled to be in working state when the pressure value is greater than a second threshold. The second threshold is used to characterize the contact tightness between the outer wall of the elastic capsule and the inner wall of the tissue.

[0027] As an optional embodiment, the ultrasound therapy device further includes a controller, wherein the controller is electrically connected to the pressure sensor;

[0028] The controller is used for:

[0029] The pressure sensor obtains the current pressure value of the liquid medium inside the elastic capsule, and adjusts the volume of the liquid medium inside the elastic capsule according to the current pressure value, so that the tissue at different focusing depths can be treated when the pressure of the adjusted liquid medium is different.

[0030] As can be seen from the above technical solutions, the embodiments of the present invention have the following advantages:

[0031] The ultrasonic therapy device in this embodiment includes: a handle and a cylindrical treatment head connected together, and an elastic bladder sleeved on the outer wall of the cylindrical treatment head; the cylindrical treatment head has a closed inner cavity, in which multiple focused ultrasound transducers are disposed, and ultrasound emission windows are opened on the opposite surfaces of the inner cavity and the focused ultrasound transducers, so that the focused ultrasound transducers emit focused ultrasound signals through the corresponding ultrasound emission windows, and the focused ultrasound signals are used to treat tissue at a preset location; if the ultrasonic therapy device is in working condition, a liquid medium is injected into the elastic bladder so that the liquid medium dissipates the heat generated by the focused ultrasound signals at the tissue at the preset location.

[0032] Because the embodiments of this application have an elastic bladder on the outer wall of the cylindrical treatment head, and when the focused ultrasound transducer is in working condition, a liquid medium is injected into the elastic bladder so that the liquid medium dissipates the heat generated by the focused ultrasound signal, thereby avoiding the problem of pain caused by the large amount of heat generated by the focused ultrasound signal in the dermis and epidermis of the treated tissue during the conduction process, thus improving user comfort. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of one embodiment of the ultrasonic therapy device in this application;

[0034] Figure 2This is a schematic diagram of the focused ultrasound transducer and ultrasound emission window disposed in the inner cavity of the cylindrical treatment head in the embodiments of this application;

[0035] Figure 3 This is a schematic diagram of another embodiment of the ultrasonic therapy device in this application;

[0036] Figure 4 This is a schematic diagram of another embodiment of the ultrasonic therapy device in this application;

[0037] Figure 5 This is a schematic diagram of another embodiment of the ultrasonic therapy device in this application;

[0038] Figure 6 This is a schematic diagram of another embodiment of the ultrasonic therapy device in this application;

[0039] Figure 7 This is a schematic diagram of another embodiment of the ultrasonic therapy device in this application;

[0040] Figure 8 This is a schematic diagram of another embodiment of the ultrasonic therapy device in this application;

[0041] Figure 9 This is a schematic diagram of another embodiment of the ultrasonic therapy device in this application;

[0042] Figure 10 This is a schematic diagram of one embodiment of the controller control flow in this application. Detailed Implementation

[0043] This invention provides an ultrasonic therapy device, which uses an elastic bladder fitted on the outer wall of a cylindrical treatment head. When the ultrasonic therapy device is in operation, a liquid medium is injected into the elastic bladder so that the liquid medium dissipates the heat generated by the focused ultrasonic signal at a preset depth in the tissue, thereby avoiding pain caused by heat inside the tissue.

[0044] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0045] The terms "first," "second," "third," "fourth," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0046] For ease of understanding, the ultrasonic therapy device in the embodiments of this application is described in detail below. Please refer to [link / reference]. Figure 1 The ultrasonic therapy device in this embodiment includes a handle and a cylindrical treatment head 20 connected together, and an elastic bladder 30 sleeved on the outside of the cylindrical treatment head. The material of the elastic bladder can be silicone, PET, PTFE, FEP, ECTE, ETFE, PFA, etc., as long as the elastic bladder has certain elasticity and toughness and is harmless to the human body. There is no specific limitation on the material of the elastic bladder here.

[0047] As a preferred embodiment, the handle portion in this application includes a blocking portion 10 to prevent the handle portion from extending too far into the cavity. The blocking portion 10 and the cylindrical treatment head 20 are vertically connected, thereby better preventing excessive penetration and protecting the cavity tissue. It is understood that the blocking portion is not a necessary component of the handle portion; for example, scale lines can be used to allow the operator to control the depth of the handle portion and the cylindrical treatment head extending into the cavity.

[0048] The ultrasound therapy device of the present invention is suitable for the treatment of cavity tissues, especially for cavity rejuvenation treatment. Its principle is to use focused ultrasound waves to concentrate energy on the deep skin tissue below the surface, thereby heating the deep tissue, promoting collagen regeneration, and thus restoring the elasticity of the cavity.

[0049] Specifically, in Figure 1 In the cylindrical treatment head 20, there is a closed inner cavity in which a focused ultrasound transducer 40 is disposed. The number of focused ultrasound transducers 40 can be one or more. Here, there is no specific limit on the number of focused ultrasound transducers in the inner cavity of the cylindrical treatment head.

[0050] As an optional embodiment, this application embodiment may have multiple focused ultrasound transducers 40 respectively arranged along the axial and circumferential directions of the cylindrical treatment head 20. The focused ultrasound transducers are mainly used to emit focused ultrasound signals. Since the focused ultrasound signals generally have a fixed focal length, when the position of the cylindrical treatment head relative to the tissue is fixed, the focusing position of the focused ultrasound signal inside the tissue is also fixed.

[0051] It is easy to understand that, because the ultrasonic transducer is located inside the cylindrical treatment head 20, and if the ultrasonic transducer is to emit focused ultrasonic signals, an ultrasonic emission window needs to be opened on the inner wall of the cylindrical treatment head 20, on the surface opposite to the piezoelectric material of the ultrasonic transducer. For ease of understanding... Figure 2 A schematic diagram of the focused ultrasound transducer 40 and ultrasound emission window 50 disposed in the inner cavity of the cylindrical treatment head 20 is given. Because multiple focused ultrasound transducers 40 are disposed in the inner cavity of the cylindrical treatment head 20 along the axial and circumferential directions of the cylindrical treatment head, an ultrasound emission window 50 is disposed on the inner wall of the cylindrical treatment head 20 for each ultrasound transducer, so that when the ultrasound transducer 40 is in working state, it can emit focused ultrasound signals through the corresponding ultrasound emission window 50.

[0052] Furthermore, to address the issue of significant heat generated by focused ultrasound signals at the focal point, which causes pain and epidermal damage as this heat diffuses from the dermis to the epidermis, this embodiment of the application includes an elastic bladder 30 surrounding the cylindrical treatment head. When the ultrasound transducer 40 is in operation, a liquid medium is injected into the elastic bladder. This liquid medium dissipates heat from the surface skin or tissue corresponding to the focused ultrasound signal at the focal point, thereby preventing pain and epidermal damage caused by heat diffusion from the dermis to the epidermis.

[0053] As an optional embodiment, when injecting liquid medium into the elastic bladder 30, the liquid medium can be injected into the elastic bladder 30 manually using a syringe, or it can be injected into the elastic bladder 30 through a pump and a pipeline structure connected to the elastic bladder. There are no specific restrictions on the method of injecting liquid medium into the elastic bladder.

[0054] Specifically, the liquid medium in the embodiments of this application can be distilled water, purified water, salt water, or solvents with added drugs, as long as it can play a role in heat dissipation and ultrasonic wave conduction. There are no specific restrictions on the type of liquid medium here.

[0055] In this embodiment, to address the problem of a large amount of heat generated by focused ultrasound signals in tissues at the focal length position, causing pain and epidermal damage during the conduction of this heat from the dermis to the epidermis, an elastic bladder is fitted onto the outer wall of the cylindrical treatment head. When the focused ultrasound transducer is in operation, a liquid medium is injected into the elastic bladder. This liquid medium dissipates heat from the surface skin or tissue corresponding to the tissue at the focal length position, thereby avoiding pain caused by the large amount of heat generated by the focused ultrasound signals in the dermis and epidermis of the treated tissue during conduction and improving user comfort.

[0056] based on Figure 1 In the embodiments described above, to improve the convenience of fixing the focused ultrasound transducer within the cavity of the cylindrical treatment head, the embodiments of this application may further provide a fixing device inside the cylindrical treatment head to fix the focused ultrasound transducer to the fixing device, thereby improving the convenience of setting the focused ultrasound transducer inside the treatment head. The following describes an ultrasound therapy device with a fixing device installed inside the cylindrical treatment head; please refer to... Figure 3 :

[0057] Specifically, the fixation device can be a fixation bracket 60 arranged in the inner cavity along the axial direction of the cylindrical treatment head. The fixation bracket 60 is connected to multiple focused ultrasound transducers 40 in both the axial and circumferential directions. When the fixation bracket 60 is connected to the focused ultrasound transducers 40 in the circumferential direction, the intervals can be 90 degrees, 60 degrees, or 30 degrees, etc. The interval mainly depends on the number of focused ultrasound transducers connected in the circumferential direction. For example, if four focused ultrasound transducers are arranged in the circumferential direction of the fixation bracket 60, one focused ultrasound transducer can be arranged at every 90 degrees at the same cross-sectional position of the fixation bracket 60. If six focused ultrasound transducers are arranged in the circumferential direction of the fixation bracket 60, one focused ultrasound transducer can be arranged at every 60 degrees at the same cross-sectional position of the fixation bracket 60. Here, there is no specific limitation on the number of focused ultrasound transducers arranged in the circumferential direction at the same cross-sectional position of the fixation bracket 60.

[0058] As an optional embodiment, the fixing bracket 60 in this application embodiment can be a solid fixing bracket or a hollow fixing bracket. There is no specific limitation on the type of fixing bracket here.

[0059] Furthermore, to improve the convenience of injecting or extracting liquid media into the elastic bladder, embodiments of this application may also include a pump 70, a tubing structure 80, and a liquid media carrier 90 in the ultrasound therapy device. The pump 70, tubing structure 80, and liquid media carrier 90 may be integrated into the inner cavity of the cylindrical treatment head 20, or into the handle portion. Alternatively, the pump 70 and liquid media carrier 90 may be placed in an external space independent of the cylindrical treatment head 20 and the handle portion (such as in the main unit of the ultrasound therapy device), and the pump 70 and liquid media carrier 90 may be connected to the elastic bladder through the tubing structure 80. The specific placement of the pump 70, tubing structure 80, and liquid media carrier 90 is not limited here.

[0060] The circulation trajectory of the liquid medium within the elastic bladder is described below when the fixed support 60 is both a solid fixed support and a hollow fixed support:

[0061] 1. The fixed bracket is a solid fixed bracket.

[0062] The fixed support is a solid fixed support. The focused ultrasound transducers are respectively arranged on the outer wall surface of the solid fixed support along the axial and circumferential directions. When the pump 70 is in the open state, the liquid medium is connected to the liquid medium carrying device 90 and the elastic bladder 30 through the pipeline structure 80, so that the liquid medium circulates inside the liquid medium carrying device 80 and the elastic bladder 30 to carry away the heat generated by the focused ultrasound signal. For ease of understanding... Figure 4 A schematic diagram of the pipeline connection and a schematic diagram of the circulating flow path of the liquid medium are provided.

[0063] II. The fixed bracket is a hollow fixed bracket.

[0064] The fixation bracket is a hollow fixation bracket. The end of the hollow fixation bracket away from the handle is connected through to the end of the cylindrical treatment head. The end of the hollow fixation bracket after penetration is flush with the end of the cylindrical treatment head. The focused ultrasound transducer is respectively arranged on the outer wall surface of the hollow fixation bracket along the axial and circumferential directions.

[0065] Different from Figure 4In the illustrated embodiment, when the fixation bracket is hollow, the pump 70 is connected to the liquid medium carrying device 90 and the hollow fixation bracket via the piping structure 80. If the pump 70 is in the on state, it draws liquid medium through the piping structure 80, allowing the liquid medium to be injected from the liquid medium carrying device 90 into the hollow fixation bracket and flow into the elastic bladder 30 through a small hole at the end of the hollow fixation bracket. This causes the liquid medium to circulate within the liquid medium carrying device 90, the hollow fixation bracket, and the elastic bladder 30. The flow trajectory of the liquid medium within the hollow fixation bracket is opposite to the flow trajectory within the channel formed between the elastic bladder and the cylindrical treatment head. For ease of understanding, Figure 5 A schematic diagram of the pipeline connection and a schematic diagram of the circulating flow path of the liquid medium are given. Figure 5 The arrows in the diagram can also be in the opposite direction, meaning the liquid medium travels along the direction of the arrow. Figure 5 The cycle repeats in the opposite direction.

[0066] Different from Figure 4 The aforementioned embodiment, by increasing the flow path of the liquid medium within the fixed support, effectively increases the flow path of the liquid medium during the heat dissipation process, thereby providing a more efficient cooling effect compared to traditional methods. Figure 4 In this embodiment, the efficiency of heat dissipation per unit time is increased.

[0067] based on Figure 4 or Figure 5 In the embodiments described above, to further improve the heat dissipation efficiency of the liquid medium within the elastic bladder 30, the embodiments of this application may further provide a radiator 100 around the pipeline structure 80 and / or around the liquid medium carrier 80 to dissipate heat within the liquid medium. This radiator can be a heat sink for passive heat dissipation of the liquid medium, or it can be a radiator with active cooling function for active scattering of heat from the liquid medium. The type of radiator is not specifically limited here; it is provided for ease of understanding. Figure 6 It gives in Figure 4 A schematic diagram showing a heat sink 100 installed in the middle.

[0068] It should be noted here that, Figure 6 The heat sink in the embodiment is combined with Figure 4 , Figure 5 The pipeline structure 80 and the liquid medium carrying device 80 are set up simultaneously. However, in actual application scenarios, the scatterer 100 can also be set up only around the pipeline structure 80 or only around the liquid medium carrying device 80. There is no specific restriction on the setting position of the scatterer here.

[0069] based on Figure 6In the embodiments described above, to further improve the convenience of obtaining the temperature of the liquid medium inside the elastic bladder 30, a temperature sensor 110 can be set on the flow path of the liquid medium to obtain the temperature of the liquid medium. In order to further improve the accuracy of temperature acquisition, multiple temperature sensors 110 can be set on the flow path of the liquid medium, and the temperature of the liquid medium inside the elastic bladder 30 can be obtained by multiple temperature sensors, so as to improve the accuracy of obtaining the temperature of the liquid medium inside the elastic bladder 30.

[0070] As an optional embodiment, to improve the accuracy of the liquid medium temperature obtained by a single temperature sensor 110, this embodiment can also place the temperature sensor 110 on the outer wall of the cylindrical treatment head, adjacent to each ultrasonic emission window. Since the focused ultrasonic transducer 40 emits focused ultrasonic signals through the ultrasonic emission windows, the location closest to the focused ultrasonic transducer on the ultrasonic signal transmission path is the ultrasonic emission window. Therefore, to improve the accuracy of the measured temperature, this embodiment places the temperature sensor 110 on the outer wall of the cylindrical treatment head, adjacent to each ultrasonic emission window, to improve the accuracy of obtaining the temperature of the liquid medium within the elastic capsule. For ease of understanding... Figure 7 A schematic diagram of an ultrasound therapy device including a temperature sensor 110 is shown.

[0071] It should be noted that the position adjacent to the ultrasonic transmission window can be anywhere around the ultrasonic transmission window, such as to the left, right, top, or bottom of the ultrasonic transmission window. There are no restrictions on the specific position adjacent to the ultrasonic transmission window.

[0072] As another alternative embodiment, Figure 8 A schematic diagram of an ultrasound therapy device including a pressure sensor 120 is shown, wherein, Figure 8 Is Figure 7 Based on the embodiment, a pressure sensor 120 is installed inside the elastic bladder 30 to obtain the pressure of the liquid medium inside the elastic bladder 30 in real time. This is because the pressure of the liquid medium inside the elastic bladder 30 also determines the distance between the focused ultrasound transducer 40 and the tissue. For example, increasing the pressure of the liquid medium inside the elastic bladder 30 is equivalent to increasing the distance between the focused ultrasound transducer 40 and the tissue, while decreasing the pressure of the liquid medium inside the elastic bladder 30 is equivalent to shortening the distance between the focused ultrasound transducer 40 and the tissue. Therefore, in order to control the focusing distance of the focused ultrasound transducer 40 inside the tissue, the embodiment of this application also needs to monitor the pressure of the liquid medium inside the elastic bladder 30 in real time.

[0073] In this embodiment, a pressure sensor and a heat sink are respectively installed on the flow path of the liquid medium in the ultrasonic therapy device, and a temperature sensor is installed on the outer wall of the cylindrical treatment head 20 adjacent to the ultrasonic emission window, thereby improving the convenience of obtaining the temperature and pressure of the liquid medium in the elastic bladder, and also improving the efficiency of heat dissipation of the liquid medium in the elastic bladder.

[0074] based on Figure 8 In the embodiments described above, to enhance the intelligence and automation of the ultrasound therapy device, a controller 130 can be incorporated into the ultrasound therapy device. The controller 130 can be integrated into the handle or cylindrical treatment head 20 of the ultrasound therapy device, or it can be located in an external space independent of the handle and cylindrical treatment head 20 (such as the main unit of the ultrasound therapy device). This allows the controller 130 to communicate with external clients (such as tablets, mobile phones, or computers) to improve the convenience of controlling the ultrasound therapy device. For ease of understanding... Figure 9 A schematic diagram of an ultrasound therapy device including controller 130 is provided. The control flow of the internal controller 130 of the ultrasound therapy device is described below. Please refer to [link / reference needed]. Figure 10 :

[0075] 1001. The temperature of the liquid medium inside the elastic bladder is obtained by a temperature sensor, and when the temperature is greater than a first threshold, the radiator is controlled to dissipate heat from the liquid medium.

[0076] In specific application scenarios, if the ultrasound therapy device is equipped with a heat sink, when the temperature sensor detects that the temperature of the liquid medium inside the elastic bladder is greater than a first threshold (wherein, the first threshold can be set differently depending on the tissue being treated in the actual application scenario, and there is no specific limitation on the size of the first threshold here), the heat sink can be controlled to dissipate heat from the liquid medium. The heat dissipation principle of the heat sink is as follows: When the liquid medium flows in the pipeline, on the one hand, the flow of the liquid medium carries heat from inside the elastic bladder to the external pipeline structure and the liquid medium carrying device. Then, the heat sinks set around the liquid medium carrying device and / or around the pipeline structure cool the pipeline structure and / or the liquid medium carrying device to achieve the effect of dissipating heat from the liquid medium.

[0077] 1002. The pressure value of the liquid medium inside the elastic capsule is obtained by a pressure sensor, and the focused ultrasound transducer is controlled to be in working state when the pressure value is greater than a second threshold. The second threshold is used to characterize the contact tightness between the outer wall of the elastic capsule and the inner wall of the tissue.

[0078] In order to improve the automation level of the controller, this embodiment of the application can also obtain the pressure value of the liquid medium inside the elastic bladder through a pressure sensor, and control the focused ultrasound transducer to be in working state when the pressure value is greater than a second threshold.

[0079] Here, the second threshold is used to characterize the tightness of contact between the outer wall of the elastic capsule and the tissue interior. It is easy to understand that the larger the second threshold, the tighter the outer wall of the elastic capsule is attached to the tissue interior, and vice versa. In addition, the second threshold is also used to characterize the distance between the focused ultrasound transducer and the tissue. The larger the second threshold, the greater the distance between the focused ultrasound transducer and the tissue, and the smaller the second threshold, the smaller the distance between the focused ultrasound transducer and the tissue.

[0080] Therefore, in practical applications, the degree of fit between the outer wall of the elastic capsule and the tissue interior, as well as the distance between the focused ultrasound transducer and the tissue, can be set by customizing the second threshold.

[0081] 1003. The current pressure value of the liquid medium inside the elastic capsule is obtained through the pressure sensor, and the volume of the liquid medium inside the elastic capsule is adjusted according to the current pressure value so that the tissue at different focusing depths can be treated when the pressure of the adjusted liquid medium is different.

[0082] In addition to controlling the pressure of the fluid medium inside the elastic capsule to regulate the contact tightness between the outer wall of the elastic capsule and the inner wall of the tissue, the controller can also adjust the volume of the fluid medium inside the elastic capsule based on the current pressure value fed back by the pressure sensor. This allows for treatment of tissues at different focal depths when the adjusted fluid medium pressure reaches different values. For example, when the current pressure value is the first pressure value, the tissue at the first treatment depth is treated, and when the current pressure value is the second pressure value, the tissue at the second treatment depth is treated. The principle is described in detail below:

[0083] Because the focusing distance of a focused ultrasound transducer is fixed, which generally refers to the distance from the transmission window of the ultrasound transmitter to the focusing tissue, and the focusing depth of the ultrasound signal inside the tissue can be affected by the radial dimension of the elastic bladder when it is filled with liquid medium, the radial dimension of the elastic bladder also affects the focusing depth of the ultrasound signal inside the tissue. Furthermore, the radial dimension of the elastic bladder is related to the volume of the liquid medium inside the elastic bladder. Therefore, the embodiments of this application can change the pressure inside the elastic bladder by changing the volume of the liquid medium inside the elastic bladder, so that when the pressure is at a first pressure value, the tissue at a first depth position is treated, and when the pressure is at a second pressure value, the tissue at a second depth position is treated.

[0084] In this embodiment, the control process of the controller is described in detail. Furthermore, this embodiment can obtain the pressure and temperature of the liquid medium inside the elastic bladder in real time through the controller, thereby improving the convenience of controlling the temperature and pressure of the liquid medium inside the elastic bladder.

[0085] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An ultrasonic therapeutic apparatus characterized by comprising: The ultrasonic therapeutic instrument comprises a handle part and a cylindrical treatment head connected with each other, and an elastic bag sleeved on an outer wall of the cylindrical treatment head. The cylindrical treatment head has a closed inner cavity, and a focused ultrasonic transducer is arranged in the inner cavity. If the ultrasonic therapeutic instrument is in a working state, a liquid medium is injected into the elastic bag, so that the liquid medium dissipates heat generated by the focused ultrasonic signal at the tissue at the preset position. The ultrasonic therapeutic instrument further comprises a pump, a pipeline structure and a liquid medium carrying device, wherein the liquid medium circulates in the pipeline structure.

2. The ultrasonic therapy apparatus of claim 1, wherein, The inner cavity is provided with a fixed support in an axial direction of the cylindrical treatment head.

3. The ultrasonic therapy apparatus of claim 2, wherein, The fixed support comprises a solid fixed support.

4. The ultrasonic therapy apparatus of claim 3, wherein, The pump is connected with the liquid medium carrying device and the hollow fixed support through the pipeline structure, so as to extract the liquid medium in the liquid medium carrying device and inject the liquid medium into the hollow fixed support, thereby realizing the circulation of the liquid medium in the liquid medium carrying device, the hollow fixed support and the elastic bag.

5. The ultrasonic therapy apparatus of claim 3, wherein, The ultrasonic therapeutic instrument further comprises: A heat sink connected with the liquid medium carrying device and / or the pipeline structure, wherein the heat sink is used for dissipating heat in the liquid medium.

6. The ultrasonic treatment device according to any one of claims 2-5, wherein, The ultrasonic therapeutic instrument further comprises: A temperature sensor arranged on an outer wall of the cylindrical treatment head, wherein the temperature sensor is arranged adjacent to a position of the ultrasonic wave emitting window, and the temperature sensor is used for measuring the temperature of the liquid medium in the elastic bag.

7. The ultrasonic therapy apparatus of claim 6, wherein, The ultrasonic therapeutic instrument further comprises: A pressure sensor arranged in the elastic bag, wherein the pressure sensor is used for acquiring the pressure inside the liquid medium.

8. The ultrasonic treatment device of any one of claims 1-5, wherein, The ultrasonic therapeutic instrument further comprises a controller electrically connected with the pressure sensor. The controller is used for:

9. The ultrasonic therapy apparatus of claim 8, wherein, Acquiring the pressure value of the liquid medium in the elastic bag through the pressure sensor, and controlling the focused ultrasonic transducer to be in a working state when the pressure value is greater than a second threshold value, wherein the second threshold value is used for representing the contact tightness between the outer wall of the elastic bag and the inner wall of the tissue. The ultrasonic therapeutic instrument further comprises: ​ 10. The ultrasonic therapy apparatus of claim 8, wherein, ​ A controller, wherein the controller is electrically connected with the pressure sensor; The controller is used for: acquiring, by the pressure sensor, a current pressure value of the liquid medium inside the elastic bag, and adjusting the volume of the liquid medium in the elastic bag according to the current pressure value, so that the tissue at different focal depths is treated when the pressure of the adjusted liquid medium is different pressure values.

Images