Ultrasonic treatment device

Abstract

The invention discloses an ultrasonic treatment device, and relates to the technical field of medical instruments.The ultrasonic treatment device comprises a shell, a transducer assembly, a rotor and a first elastic piece, the shell comprises a sound transmission opening, the transducer assembly is installed in the shell, the rotor is rotationally connected with the shell, the rotor is movably connected with the transducer assembly, and the first elastic piece is installed in the shell; the rotor can rotate around a first direction relative to the shell and the transducer assembly, the rotor is used for driving the transducer assembly to move in the direction close to or away from the sound transmission opening, and the first elastic piece is used for enabling the transducer assembly to abut against the rotor; when the rotor rotates, the distance from the abutting joint of the rotor and the transducer assembly to the sound transmission opening can be changed within a preset range. According to the technical scheme, the problems that an existing ultrasonic treatment device capable of focusing the plane distance is complex in structure and high in cost are solved.

Description

Technical Field

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

[0002] Most existing adjustable focal plane distance ultrasound therapy devices use a nut and screw connection method, with the transducer connected to the drive mechanism via a threaded connection. However, this method requires high machining precision for the screw and nut, and necessitates the installation of highly sensitive detection components, such as light sensors, to detect the focal length. This results in a relatively complex structure and high cost for the therapy device. Summary of the Invention

[0003] The main objective of this invention is to provide an ultrasound therapy device that addresses the problems of complex structure and high cost of existing ultrasound therapy devices with adjustable focal plane distance.

[0004] To achieve the above objectives, the present invention proposes an ultrasonic therapy device, comprising: a housing including a sound-transmitting port; a transducer assembly installed within the housing; a rotor rotatably connected to the housing and movably connected to the transducer assembly, the rotor being rotatable relative to the housing and the transducer assembly about a first direction, and the rotor being used to drive the transducer assembly to move towards or away from the sound-transmitting port; and a first elastic member for causing the transducer assembly to abut against the rotor; wherein, when the rotor rotates, the distance from the abutment point of the rotor and the transducer assembly to the sound-transmitting port can vary within a preset range.

[0005] In one embodiment, the transducer assembly further includes a retainer and a transducer unit. The retainer is disposed on the transducer unit, and a groove is formed on the end face of the rotor facing the transducer unit. The retainer extends into the groove and slides in cooperation with the groove.

[0006] In one embodiment, the transducer assembly further includes a second elastic member, one end of which is connected to the transducer unit, and the other end of which is connected to the abutment member.

[0007] In one embodiment, the bottom surface of the groove forms a contact surface, the abutting member contacts the contact surface and forms the abutting connection, and the distances from at least two of the abutting connections on the contact surface to the sound-transmitting opening are not the same.

[0008] In one embodiment, the groove is formed along the circumference of the rotor, and the distance between each abutment joint on the contact surface and the sound-transmitting opening is different.

[0009] In one embodiment, at least two grooves are provided, and the grooves are spaced apart on the end face of the rotor, and the distances from the abutment connection of at least two of the grooves to the sound-transmitting opening are not the same.

[0010] In one embodiment, one end of the first elastic member is connected to the transducer assembly, and the other end of the first elastic member is connected to the rotor.

[0011] In one embodiment, a first fixing hole is provided at one end of the rotor, a limiting bushing is provided in the first fixing hole, a stop step is provided inside the limiting bushing, a support step is provided on the surface of the transducer assembly, the transducer assembly extends into the limiting bushing and is supported by the stop step by the support step for limiting, and the first elastic element is provided in the first fixing hole.

[0012] In one embodiment, one end of the first elastic member is connected to the transducer assembly, and the other end of the first elastic member is connected to the housing.

[0013] In one embodiment, the ultrasound therapy device further includes a bellows, one end of which is connected to the housing and the other end of which is connected to the transducer assembly. The bellows is partially sleeved on the outside of the rotor and the transducer assembly.

[0014] Compared with the prior art, the ultrasound therapy device provided by the present invention has the following beneficial effects:

[0015] The technical solution of this invention connects the rotor and the transducer assembly movably. The rotor can rotate relative to the housing and the transducer assembly around a first direction and is used to drive the transducer assembly to move closer to or further away from the sound transmission port. The transducer assembly abuts against the rotor through a first elastic element. When the rotor rotates, the distance from the abutment point between the rotor and the transducer assembly to the sound transmission port can vary within a preset range, thereby realizing the adjustment of different focal depths of the transducer assembly. This method uses fewer parts, is simple to assemble, and does not require additional detection parts to detect the focal length, resulting in lower costs. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1This is one of the internal structural schematic diagrams of an embodiment of the ultrasound therapy device provided by the present invention;

[0018] Figure 2 This is a second schematic diagram of the internal structure of an embodiment of the ultrasound therapy device provided by the present invention;

[0019] Figure 3 A schematic diagram of the mating structure of a rotor and transducer assembly according to an embodiment of the present invention;

[0020] Figure 4 for Figure 3 A cross-sectional view along the AA direction;

[0021] Figure 5 A schematic diagram of the mating structure of the rotor and the supporting member according to an embodiment of the present invention;

[0022] Figure 6 A bottom view of an embodiment of the rotor provided by the present invention;

[0023] Figure 7 An exploded view of one embodiment of the ultrasonic therapy device provided by the present invention.

[0024] Explanation of icon numbers:

[0025] 100. Ultrasonic therapy device; 10. Housing; 11. Sound port; 20. Transducer assembly; 21. Supporting step; 22. Mounting base; 23. Supporting element; 24. Transducer unit; 25. Second elastic element; 30. Rotor; 31. Groove; 32. First fixing hole; 33. Second fixing hole; 40. First elastic element; 70. Limiting bushing; 71. Stopping step; 80. Bellows; 90. Drive mechanism; 91. Motor; 92. Bearing; 93. Connecting bushing.

[0026] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0028] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0029] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0030] Please refer to Figures 1 to 7 This invention proposes an ultrasound therapy device 100, comprising: a housing 10, the housing 10 including a sound-transmitting port 11; a transducer assembly 20, the transducer assembly 20 being installed within the housing 10; a rotor 30, the rotor 30 being rotatably connected to the housing 10 and movably connected to the transducer assembly 20, the rotor 30 being rotatable relative to the housing 10 and the transducer assembly 20 about a first direction, and the rotor 30 being used to drive the transducer assembly 20 to move toward or away from the sound-transmitting port 11; and a first elastic member 40, the first elastic member 40 being used to cause the transducer assembly 20 to abut against the rotor 30; wherein, when the rotor 30 rotates, the distance from the abutment connection point (not shown in the figure) between the rotor 30 and the transducer assembly 20 to the sound-transmitting port 11 can vary within a preset range.

[0031] Specifically, the ultrasound therapy device 100 can be a treatment head, handpiece, or therapeutic instrument. The ultrasound therapy device 100 includes a housing 10, a transducer assembly 20, a rotor 30, and a first elastic element 40. The housing 10 protects and supports the components and has a sound-transmitting port 11 for effectively transmitting generated ultrasound waves into human tissue. The transducer assembly 20 converts electrical energy into mechanical energy. The rotor 30, as an intermediate component, is rotatably connected to the housing 10 and movably connected to the transducer assembly 20. Rotation of the rotor 30 drives the transducer assembly 20 to move, causing it to move closer to or further away from the sound-transmitting port 11. The elastic force of the first elastic element 40 causes the transducer assembly 20 to abut against the rotor 30. When the rotor 30 rotates, the distance from the abutment point between the rotor 30 and the transducer assembly 20 to the sound-transmitting port 11 can vary within a preset range to adjust the focal length.

[0032] The transducer assembly 20 is movably installed inside the housing 10. Its movement can be configured to move along a sliding track or be connected to a telescopic arm. The specific installation method can be set according to actual needs.

[0033] The rotor 30 can be rotatably connected to the housing 10 by means of a bearing 92, a gear, or an indirect connection by means of a drive mechanism 90. The specific connection method can be set according to actual needs.

[0034] The first elastic element 40 causes the transducer assembly 20 to abut against the rotor 30. Specifically, the first elastic element 40 can be disposed between the transducer assemblies 20 to hold the transducer assembly 20 against the rotor 30; or the first elastic element 40 can be disposed between the transducer assembly 20 and the rotor 30 to connect the transducer assembly 20 to the rotor 30. The specific abutment method can be selected according to actual needs. The specific structure of the first elastic element 40 can be an elastic airbag or a spring, etc.

[0035] The transducer assembly 20 abuts against the rotor 30. When the rotor 30 rotates around the first direction, the rotor 30 rotates relative to the transducer assembly 20. The distance from the abutment connection between the rotor 30 and the transducer assembly 20 to the sound transmission port 11 can vary within a preset range, so that the transducer assembly 20 moves towards or away from the sound transmission port 11 to adjust the focal length. The assembly is simple, the cost is low, and there are few parts. It can quickly adjust the focal plane distance of the transducer assembly 20.

[0036] The distance from the contact point to the sound-transmitting port 11 varies within a preset range, which is the preset focal length adjustment range. The specific way to achieve the distance variation is to set an undulating bottom surface on the rotor 30 or the transducer assembly 20, or to set an undulating groove 31, or to set the rotor 30 as a cam, etc. The specific method can be set according to actual needs.

[0037] The technical solution of this invention connects the rotor 30 and the transducer assembly 20 in a movable manner. The rotor 30 can rotate relative to the housing 10 and the transducer assembly 20 in a first direction and is used to drive the transducer assembly 20 to move towards or away from the sound transmission port 11. The first elastic member 40 makes the transducer assembly 20 abut against the rotor 30. When the rotor 30 rotates, the distance from the abutment connection between the rotor 30 and the transducer assembly 20 to the sound transmission port 11 can vary within a preset range, thereby realizing the adjustment of different focal depths of the transducer assembly 20. This method uses fewer parts, is simple to assemble, and does not require additional detection parts to detect the focal length, resulting in lower costs.

[0038] In an embodiment of the present invention, the transducer assembly 20 further includes a retainer 23 and a transducer unit 24. The retainer 23 is disposed on the transducer unit 24. The rotor 30 has a groove 31 on its end face facing the transducer unit 24. The retainer 23 extends into the groove 31 and slides in cooperation with the groove 31.

[0039] In detail, the cooperation between the rotor 30 and the transducer assembly 20 is configured such that the abutment 23 and the groove 31 cooperate. The abutment 23 can slide along the groove 31, and the abutment 23 and the groove 31 abut against each other to form an abutment connection. The groove 31 provides a clear movement path for the abutment 23, ensuring that it moves in the expected direction and trajectory. Placing the abutment 23 in the groove 31 makes it slide more stably along the groove 31, reducing offset and improving the accuracy of the focal length adjustment of the transducer assembly 20. The shape and number of grooves 31 can be selected according to actual needs.

[0040] In addition, the end of the support member 23 near the rotor 30 is provided with an arc surface. The arc surface can form a larger contact area with the groove 31, which helps to disperse pressure and thus improve stability. For the support member 23 that needs to be moved frequently, the arc-shaped corner design makes the support member 23 easier to slide without damaging the surface of the groove 31, and improves the accuracy of focus adjustment.

[0041] In an embodiment of the present invention, the transducer assembly 20 further includes a second elastic member 25, one end of which is connected to the transducer unit 24, and the other end of which is connected to the abutment member 23.

[0042] It is worth noting that the second elastic member 25 is disposed between the transducer unit 24 and the second elastic member 25, which can further hold the abutment member 23 against the rotor 30, so that the abutment member 23 fits more tightly against the surface of the groove 31, reducing loosening and improving the stability of movement within a wide range of strokes.

[0043] In addition, such as Figure 4 and Figure 7 The transducer assembly 20 is provided with a mounting base 22, and a retaining member 23 is installed in the mounting base 22. The retaining member 23 is provided with a guide hole, and a second elastic member 25 is disposed in the guide hole for movement. The second elastic member 25 is also disposed in the mounting base 22. This arrangement allows the retaining member 23 to move in a specific direction, reducing unnecessary lateral displacement or deflection. By compressing the second elastic member 25, the pressure between the retaining member 23 and the contact surface can be flexibly controlled to meet the needs of adjusting different focal lengths.

[0044] In an embodiment of the present invention, the bottom surface of the groove 31 forms a contact surface (not shown in the figure), the abutting member 23 contacts the contact surface and forms the abutting connection, and the distance between at least two of the abutting connections on the contact surface and the sound-transmitting opening 11 is different.

[0045] Specifically, multiple grooves 31 can be provided, or contact surfaces of different heights can be provided on the same groove 31. In one embodiment, the bottom surface of the groove 31 forms a contact surface, and the abutment member 23 contacts the contact surface to form an abutment connection. The distances from at least two abutment connections on the contact surface to the sound-transmitting opening 11 are different. By changing the height of the contact surface, the height position of the abutment member 23 can be adjusted, thereby adjusting the height of the transducer assembly 20 to achieve focal length adjustment.

[0046] This design can quickly change the focal length by rotating the rotor 30 without a complicated reassembly process or the need to install highly sensitive detection parts to detect the focal length, making it highly practical.

[0047] In an embodiment of the present invention, the groove 31 is opened along the circumference of the rotor 30, and the distance between each abutment connection on the contact surface and the sound-transmitting opening 11 is different.

[0048] Specifically, the groove 31 can be a short segment or it can be arranged along the circumference. In one embodiment, a groove 31 is provided circumferentially on the end face of the rotor 30, and the distance between each contact point on the contact surface and the sound-transmitting opening 11 is different. The contact surface can be formed by connecting multiple arc surfaces, connecting multiple inclined surfaces, or connecting multiple arc surfaces and multiple inclined surfaces.

[0049] When the rotor 30 rotates, the supporting member 23 can move relative to it in the circumferential direction, so that continuous height position adjustment and focal length adjustment can be performed without segmented adjustment, which can meet the needs of more focal length adjustment.

[0050] In an embodiment of the present invention, at least two grooves 31 are provided, and the grooves 31 are spaced apart on the end face of the rotor 30. The distances from the abutment connection points of at least two grooves 31 to the sound-transmitting opening 11 are not the same.

[0051] Specifically, in another embodiment, at least two grooves 31 are provided, and the distances from the abutment connection of at least two grooves 31 to the sound-transmitting opening 11 are different. This allows for precise position adjustment at different locations, enabling the transducer assembly 20 to perform multi-level focal length adjustment according to specific application requirements. A single groove 31 provides a clear positioning point, ensuring that the retaining member 23 can be stably held on the groove 31 when the rotor 30 rotates to a specific position, reducing unnecessary movement or shaking. Furthermore, since the grooves 31 are spaced apart, quick positioning can be achieved by simply rotating the rotor 30 to select the appropriate groove 31 position.

[0052] In addition, such as Figure 4 The surface of the groove 31 is also designed as an arc surface, which can better cooperate with the support member 23 without damaging the mating surface and improving the accuracy of focus adjustment.

[0053] In an embodiment of the present invention, one end of the first elastic member 40 is connected to the transducer assembly 20, and the other end of the first elastic member 40 is connected to the rotor 30.

[0054] In detail, such as Figure 1 The first elastic element 40 is positioned between the transducer assembly 20 and the rotor 30. The first elastic element 40 can maintain the transducer assembly 20 in a preset position and can provide shock absorption and cushioning. At the same time, the first elastic element 40 can provide a certain amount of expansion and contraction space to avoid damage caused by material deformation.

[0055] The continuous pressure provided by the first elastic element 40 helps maintain good contact between the retainer 23 on the transducer assembly 20 and the rotor 30, ensuring stable contact even in motion, thereby improving the stability and accuracy of focus adjustment.

[0056] In an embodiment of the present invention, a first fixing hole 32 is provided at one end of the rotor 30, a limiting bushing 70 is provided in the first fixing hole 32, a stop step 71 is provided inside the limiting bushing 70, a support step 21 is provided on the surface of the transducer assembly 20, the transducer assembly 20 extends into the limiting bushing 70 and is supported by the stop step 71 by the support step 21 for limiting, and the first elastic member 40 is provided in the first fixing hole 32.

[0057] It is worth noting that the cooperation between the supporting step 21 and the stop step 71 can precisely limit the transducer assembly 20, thereby maintaining the range of movement of the transducer assembly 20 in the height direction and providing a stable support structure for the transducer assembly 20. The first elastic member 40 is also provided in the first fixing hole 32, which facilitates installation and provides a certain guiding effect for the first elastic member 40.

[0058] This design simplifies the installation process of the transducer assembly 20. Simply insert the transducer assembly 20 into the limiting sleeve 70 and position it by engaging the abutting step 21 with the stop step 71.

[0059] In an embodiment of the present invention, one end of the first elastic member 40 is connected to the transducer assembly 20, and the other end of the first elastic member 40 is connected to the housing 10.

[0060] Specifically, in another embodiment, the first elastic element 40 is directly connected to the housing 10, which can effectively isolate the transducer assembly 20 from the structure of the housing 10. The first elastic element 40 can absorb and buffer external impact forces. Even if the housing 10 vibrates, the vibration will not be directly transmitted to the transducer assembly 20, thereby improving the stability of the installation, protecting the transducer assembly 20 from damage, and extending the service life of the equipment.

[0061] In an embodiment of the present invention, the ultrasonic therapy device 100 further includes a bellows 80, one end of which is connected to the housing 10 and the other end of which is connected to the transducer assembly 20. The bellows 80 is partially sleeved on the outside of the rotor 30 and the transducer assembly 20.

[0062] In detail, such as Figure 1 A bellows 80 is provided between the transducer assembly 20 and the housing 10 for support. The bellows 80 has good flexibility and extensibility. The rotor 30 rotates to drive the transducer assembly 20 to move along the height direction. The bellows 80 provides flexible support for the transducer assembly 20, which can adapt to the movement of the transducer assembly 20 along the height direction.

[0063] Meanwhile, the elastic properties of the bellows 80 can absorb and buffer vibrations or impacts from the outside, thereby reducing the impact of these factors on the transducer assembly 20. This helps improve the stability and accuracy of the structure when the transducer assembly 20 moves. The bellows 80 can also prevent dust or other contaminants from entering the interior of the transducer assembly 20.

[0064] In addition, the ultrasound therapy device 100 also includes a drive mechanism 90, which is connected to the housing 10. The drive end of the drive mechanism 90 is connected to the rotor 30 to drive the rotor 30 to rotate. In one embodiment, the drive mechanism 90 specifically includes a drive motor 91, a bearing 92, and two connecting bushings 93. A second fixing hole 33 is opened at the end of the rotor 30 away from the first fixing hole 32. The two bushings are fixedly installed in the second fixing hole 33. The drive shaft of the drive motor 91 extends into the two connecting bushings 93. The bearing 92 is fastened in the housing 10, and the end of the rotor 30 away from the transducer assembly 20 is fixedly engaged with the bearing 92. Power is provided by the drive motor 91, which enables precise control of the rotation of the rotor 30. The bearing 92 provides low-friction rotational support, ensuring that the rotor 30 rotates smoothly and efficiently. The connecting bushings 93 are fastened in the second fixing hole 33 of the rotor 30, ensuring a firm connection between the drive shaft of the drive motor 91 and the rotor 30, reducing the possibility of loosening and ensuring the accuracy of transmission.

[0065] A specific embodiment is provided: A drive mechanism 90 drives the rotor 30 to rotate relative to the transducer assembly 20 in a first direction. The abutment 23 and the limiting sleeve 70 are assembled together with the first elastic member 40 and fitted into the first fixing hole 32 of the rotor 30. The first fixing hole 32 of the rotor 30 is securely fitted to the limiting sleeve 70. The abutment 23, the second elastic member 25, and the mounting base 22 form an assembly, which is assembled onto the transducer assembly 20. The abutment 23 is assembled with the transducer assembly 20. Finally, one end of the bellows 80 is glued to the transducer assembly 20 with waterproof adhesive, and the other end of the bellows 80 is glued to the corresponding position inside the housing 10 with waterproof adhesive. Figures 1 to 7 When the motor 91 shaft rotates, it drives the rotor 30 to rotate. The end face of the rotor 30 is provided with three grooves 31, which are spaced apart on the end face of the rotor 30. The distances from the abutment connection of the three grooves 31 to the sound transmission port 11 are all different. These three grooves 31 correspond to three focal plane distances. When the rotor 30 rotates, due to the height difference, the abutment member 23 only moves up and down on the end face of the rotor 30. Since the abutment member 23 is fixed on the transducer assembly 20, it can simultaneously drive the transducer assembly 20 to move up and down together. When the first groove 31 of the rotor 30 abuts the abutment member 23... When the second groove 31 of the rotor 30 corresponds to the retaining member 23, the focal plane distance of the first transducer assembly 20 is reached; when the second groove 31 of the rotor 30 corresponds to the retaining member 23, the focal plane distance of the second transducer assembly 20 is reached; when the third groove 31 of the rotor 30 corresponds to the retaining member 23, the focal plane distance of the third transducer assembly 20 is reached, thereby realizing the function of the ultrasonic therapy device 100 adjusting the focal plane distance of the transducer assembly 20 with the rotor 30. It has the advantages of simplicity, speed, assembly and low cost, and does not require the use of photoelectric sensors (and similar sensor parts) in combination with the above mechanism.

[0066] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. An ultrasonic therapy device, characterized in that, include: A housing, the housing including a sound-permeable opening; A transducer assembly, wherein the transducer assembly is installed within the housing; A rotor, rotatably connected to the housing and movably connected to the transducer assembly, the rotor being rotatable relative to the housing and the transducer assembly about a first direction, and the rotor being used to drive the transducer assembly to move towards or away from the sound-transmitting opening; and A first elastic element is used to cause the transducer assembly to abut against the rotor; When the rotor rotates, the distance from the contact point between the rotor and the transducer assembly to the sound-transmitting opening can vary within a preset range.

2. The ultrasonic therapy device as described in claim 1, characterized in that, The transducer assembly includes a support member and a transducer unit. The support member is disposed on the transducer unit. The end face of the rotor facing the transducer unit has a groove. The support member extends into the groove and slides in cooperation with the groove.

3. The ultrasonic therapy device as described in claim 2, characterized in that, The transducer assembly further includes a second elastic element, one end of which is connected to the transducer unit, and the other end of which is connected to the abutment.

4. The ultrasonic therapy device as described in claim 2, characterized in that, The bottom surface of the groove forms a contact surface, the abutting member contacts the contact surface and forms the abutting connection, and the distance between at least two of the abutting connections on the contact surface and the sound-transmitting opening is different.

5. The ultrasound therapy device as described in claim 4, characterized in that, The groove is formed along the circumference of the rotor, and the distance between each abutment joint on the contact surface and the sound-transmitting opening is different.

6. The ultrasound therapy device as described in claim 4, characterized in that, At least two grooves are provided, and the grooves are spaced apart on the end face of the rotor. The distances from the abutment connection of at least two grooves to the sound-transmitting opening are not the same.

7. The ultrasound therapy device according to any one of claims 1 to 6, characterized in that, One end of the first elastic element is connected to the transducer assembly, and the other end of the first elastic element is connected to the rotor.

8. The ultrasound therapy device as described in claim 7, characterized in that, One end of the rotor is provided with a first fixing hole, and a limiting bushing is provided in the first fixing hole. A stop step is protruding inside the limiting bushing, and a support step is protruding on the surface of the transducer assembly. The transducer assembly extends partially into the limiting bushing and is supported by the stop step for limiting. The first elastic element is provided in the first fixing hole.

9. The ultrasound therapy device according to any one of claims 1 to 6, characterized in that, One end of the first elastic element is connected to the transducer assembly, and the other end of the first elastic element is connected to the housing.

10. The ultrasound therapy device according to any one of claims 1 to 6, characterized in that, The ultrasonic therapy device also includes a bellows, one end of which is connected to the housing and the other end of which is connected to the transducer assembly. The bellows is partially sleeved on the outside of the rotor and the transducer assembly.

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