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 and an intermediate shaft, the shell comprises a sound transmission opening, the transducer assembly is installed in the shell, the intermediate shaft is rotationally connected with the shell, and the intermediate shaft is movably connected with the transducer assembly; the intermediate shaft can rotate around a first direction relative to the shell and the transducer assembly, and the intermediate shaft is used for driving the transducer assembly to move in the direction close to or away from the sound transmission opening; wherein one of the intermediate shaft and the transducer assembly is provided with a guide structure, the other one of the intermediate shaft and the transducer assembly is provided with a convex structure, and the intermediate shaft and the transducer assembly are used for limiting and matching through the guide structure and the convex structure. 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 optical sensors, to detect the focal length. This results in a relatively complex structure and high cost for the ultrasound 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 adjustable focal plane distance ultrasound therapy devices.

[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; and an intermediate shaft rotatably connected to the housing and movably connected to the transducer assembly. The intermediate shaft is rotatable relative to the housing and the transducer assembly about a first direction, and is used to drive the transducer assembly to move towards or away from the sound-transmitting port. A guide structure is provided on one of the intermediate shaft and the transducer assembly, and a protrusion structure is provided on the other of the intermediate shaft and the transducer assembly. The intermediate shaft and the transducer assembly are used for limiting and engaging through the guide structure and the protrusion structure.

[0005] In one embodiment, the transducer assembly includes a transducer unit and a connecting shaft, the connecting shaft being connected to the transducer unit and movably connected to the intermediate shaft, the guide structure being located on the intermediate shaft, and the protruding structure being located on the connecting shaft.

[0006] In one embodiment, the guide structure extends axially along the intermediate shaft, the guide structure includes a first end and a second end, and the second end of the guide structure is located between the first end and the sound-transmitting opening.

[0007] In one embodiment, the protrusion structure includes a pin, and the guide structure includes a first through hole through which the pin passes and is detachably connected to the connecting shaft.

[0008] In one embodiment, the guide structure includes a first segment extending toward the sound-transmitting opening and a second segment extending away from the sound-transmitting opening, wherein a first end of the first segment is connected to a second end of the second segment, and a second end of the first segment is connected to a first end of the second segment.

[0009] In one embodiment, the guide structure includes a second through hole, and the protrusion structure includes a pin that passes through the second through hole and is detachably connected to the connecting shaft.

[0010] In one embodiment, the intermediate shaft includes a first half-shaft and a second half-shaft, the guide structure includes a groove formed on the inner wall of the intermediate shaft, the first section is located on the first half-shaft, the second section is located on the second half-shaft, and the protrusion structure extends partially into the groove.

[0011] In one embodiment, the protrusion structure includes two protrusion structures symmetrically arranged on the connecting shaft. The first half-shaft is provided with the first segment and the second segment, and the second half-shaft is provided with the first segment and the second segment.

[0012] In one embodiment, the transducer assembly has guide portions protruding on both sides, and the inner wall of the housing has two guide blocks facing each other. The guide blocks have guide grooves opened vertically, and the two guide portions extend into the two guide grooves respectively.

[0013] In one embodiment, the ultrasound therapy device further includes a drive component, which is mounted on the housing, with its drive end extending into the housing and its output end connected to the intermediate shaft, thereby driving the intermediate shaft to rotate.

[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 intermediate shaft to the transducer assembly in a movable manner. The intermediate shaft can rotate relative to the housing and the transducer assembly in a first direction. At the same time, a guide structure and a protruding structure are set between the intermediate shaft and the transducer assembly to limit the movement. This ensures that the transducer assembly moves accurately along a predetermined path towards or away from the sound transmission port, thereby achieving rapid adjustment of the focal plane distance of the transducer assembly. The structure of this adjustment method is simpler and more compact. By controlling the rotation of the intermediate shaft, the rise or fall of the transducer assembly can be adjusted to achieve focal length adjustment. Moreover, there is no need to add a detection part to detect the focal length, resulting in lower design costs and ease of manufacturing and maintenance. 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 1 This is a schematic diagram of the internal structure of an embodiment of the ultrasound therapy device provided by the present invention;

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

[0019] Figure 3 A schematic diagram of the internal structure of an embodiment of the outer casing provided by the present invention;

[0020] Figure 4 A schematic diagram of the mating structure of an embodiment of the intermediate shaft and connecting shaft provided by the present invention;

[0021] Figure 5 A cross-sectional view of an embodiment of the intermediate shaft and connecting shaft mating structure provided by the present invention;

[0022] Figure 6 A schematic diagram of the mating structure of another embodiment of the intermediate shaft and connecting shaft provided by the present invention;

[0023] Figure 7 A schematic diagram of a first half-shaft embodiment provided by the present invention;

[0024] Explanation of icon numbers:

[0025] 100. Ultrasonic therapy device; 10. Housing; 11. Sound-transmitting port; 12. Guide block; 121. Guide groove; 20. Transducer assembly; 21. Transducer unit; 22. Connecting shaft; 23. Guide part; 30. Intermediate shaft; 31. First half-shaft; 32. Fixing hole; 40. Guide structure; 41. First end; 42. Second end; 43. First through hole; 44. First section; 45. Second section; 46. Groove; 50. Protruding structure; 51. Pin; 52. Pin shaft; 60. Driving component; 61. Drive motor; 62. Bearing.

[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 including a sound-transmitting port 11; a transducer assembly 20 installed within the housing 10; and an intermediate shaft 30 rotatably connected to the housing 10 and movably connected to the transducer assembly 20. The intermediate shaft 30 is rotatable relative to the housing 10 and the transducer assembly 20 about a first direction, and is used to drive the transducer assembly 20 to move toward or away from the sound-transmitting port 11. A guide structure 40 is provided on one of the intermediate shaft 30 and the transducer assembly 20, and a protrusion structure 50 is provided on the other of the intermediate shaft 30 and the transducer assembly 20. The intermediate shaft 30 and the transducer assembly 20 are used for limiting engagement through the guide structure 40 and the protrusion structure 50.

[0031] Specifically, the ultrasound therapy device 100 includes a housing 10, a transducer assembly 20, and an intermediate shaft 30. 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 intermediate shaft 30 rotates relative to the transducer assembly 20 to drive the transducer assembly 20 to move towards or away from the sound-transmitting port 11. By providing a guide structure 40 and a protruding structure 50 between the intermediate shaft 30 and the transducer assembly 20, and by the limiting cooperation between the guide structure 40 and the protruding structure 50, it can be ensured that the transducer assembly 20 moves accurately along a predetermined path towards or away from the sound-transmitting port 11, which helps to precisely control the movement and enhance stability. The guide structure 40 provides support and prevents the transducer assembly 20 from tilting or lateral displacement, thus increasing the stability of the structure.

[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 intermediate shaft 30 can be rotatably connected to the housing 10 by means of bearings, gears, or indirectly by means of a drive mechanism. The specific connection method can be set according to actual needs.

[0034] The specific mating structure between the guide structure 40 and the protrusion structure 50 can be selected according to actual needs. It can be a mating of groove and pin 51, with pin 51 sliding along the groove; or a mating of guide rail and slider, with slider moving along the guide rail; or a mating of spiral groove and roller.

[0035] A guide structure 40 is installed on one component of the intermediate shaft 30 and the transducer assembly 20, while a corresponding protruding structure 50 is provided on the other component. When the two components rotate relative to each other, the protruding structure 50 moves along the guide structure 40, thus ensuring consistency of the direction of movement. The maximum stroke range can be limited by the shape of the guide structure 40, which also provides good support and stability. Through the cooperation of the guide structure 40 and the protruding structure 50, the intermediate shaft 30 drives the transducer assembly 20 to move closer to or further away from the sound-transmitting port 11, realizing the adjustment of different focal depths of the transducer assembly 20. This method is simple to assemble, low in cost, requires few parts, and enables rapid adjustment.

[0036] The technical solution of this invention connects the intermediate shaft 30 to the transducer assembly 20 in a movable manner. The intermediate shaft 30 can rotate relative to the housing 10 and the transducer assembly 20 in a first direction. At the same time, a guide structure 40 and a protrusion structure 50 are provided between the intermediate shaft 30 and the transducer assembly 20 for limiting cooperation. This ensures that the transducer assembly 20 moves accurately along a predetermined path toward or away from the sound transmission port 11, thereby achieving rapid adjustment of the focal plane distance of the transducer assembly 20. The structure of this adjustment method is simpler and more compact. By controlling the rotation of the intermediate shaft 30, the transducer assembly 20 can be adjusted to rise or fall, thereby achieving focal length adjustment. There is no need to add detection parts to detect the focal length, resulting in lower design costs and ease of manufacturing and maintenance.

[0037] In an embodiment of the present invention, the transducer assembly 20 includes a transducer unit 21 and a connecting shaft 22. The connecting shaft 22 is connected to the transducer unit 21 and is movably connected to the intermediate shaft 30. The guide structure 40 is located on the intermediate shaft 30, and the protrusion structure 50 is located on the connecting shaft 22.

[0038] In detail, by providing a connecting shaft 22 on the transducer unit 21, the connecting shaft 22 and the intermediate shaft 30 are movably connected, facilitating their fit. Placing the guide structure 40 on the intermediate shaft 30 reduces the design complexity of the transducer assembly 20, making its structure more compact. Placing the guide structure 40 on the intermediate shaft 30 also provides stronger support; furthermore, if the guide structure 40 requires maintenance, only the intermediate shaft 30 needs to be replaced or repaired, without disassembling the entire transducer assembly 20, simplifying maintenance and replacement.

[0039] Since the guide structure 40 is located on the intermediate shaft 30 and the protrusion structure 50 is located on the connecting shaft 22, the movement path of the connecting shaft 22 and the transducer unit 21 can be controlled more directly. Direct control helps to ensure the consistency and accuracy of movement and improves the accuracy of the focal length adjustment of the transducer unit 21.

[0040] In an embodiment of the present invention, the guide structure 40 extends axially along the intermediate shaft 30, the guide structure 40 includes a first end 41 and a second end 42, and the second end 42 of the guide structure 40 is located between the first end 41 and the sound-transmitting port 11.

[0041] It is worth noting that the specific form of the guide structure 40 can be adjusted according to actual needs, and can be set as a straight line or a spiral, etc. For example... Figure 5In one embodiment, the guide is configured to extend axially along the intermediate shaft 30, and the second end 42 of the guide structure 40 is located between the first end 41 and the sound-permeable opening 11. That is, the distances between the two ends of the guide structure 40 and the sound-permeable opening 11 are not the same. By setting the first end 41 and the second end 42, the movement range of the transducer assembly 20 can be precisely controlled, so that the transducer assembly 20 moves within a preset range. This can prevent the transducer assembly 20 from accidentally colliding with other components or the housing 10 and causing damage. By rotating the intermediate shaft 30 in the forward or reverse direction, the transducer assembly 20 can be controlled to move towards or away from the sound-permeable opening 11.

[0042] Meanwhile, since the range of motion is defined by the first end 41 and the second end 42, there is no need for complex sensors to detect the position. It is only necessary to ensure that the protruding structure 50 moves correctly within the guide structure 40. The structure is simple and achieves accurate and stable focus adjustment, thus improving the user experience.

[0043] In an embodiment of the present invention, the protruding structure 50 includes a pin 51, the guide structure 40 includes a first through hole 43, the pin 51 passes through the first through hole 43 and is detachably connected to the connecting shaft 22.

[0044] In detail, the pin 51 is detachably connected to the connecting shaft 22. This design simplifies the assembly process, making it easy to assemble and disassemble, reducing maintenance costs, and also lowering manufacturing costs. The engagement of the pin 51 with the first through hole 43 provides a precise guide path, ensuring that the transducer assembly 20 can move in a predetermined direction, which helps improve the accuracy and consistency of focus adjustment and achieves precise guidance.

[0045] By combining the pin 51 with the first through hole 43, the space of the intermediate shaft 30 can be effectively utilized, making the overall structural design more compact and optimizing space utilization.

[0046] In an embodiment of the present invention, the guide structure 40 includes a first segment 44 extending toward the sound-transmitting opening 11 and a second segment 45 extending away from the sound-transmitting opening 11. A first end 41 of the first segment 44 communicates with a second end 42 of the second segment 45, and vice versa. The first segment 44 and the second segment 45 can be defined by the direction of movement of the protruding structure 50 relative to the guide structure 40, such that when the protruding structure 50 moves along the first segment 44, it drives the transducer assembly 20 to move toward the sound-transmitting opening, and when it moves along the second segment 45, it drives the transducer assembly 20 to move away from the sound-transmitting opening 11.

[0047] Specifically, such as Figure 7In another embodiment, the guide structure 40 is configured as an undulating extension section, which allows the transducer assembly 20 to move bidirectionally along the axial direction. It can move along the first section 44 towards the sound transmission port 11, and it can also move along the second section 45 away from the sound transmission port 11, and can be precisely adjusted according to actual needs.

[0048] For example, when the protrusion structure along Figure 7 When the protruding structure moves from right to left in the second section 45 and the first section 44, it can first rise along the second section 45 to make the transducer assembly 20 rise and move away from the sound transmission port 11; after the protruding structure passes through the second section 45, it can descend along the first section 44 to make the transducer assembly 20 descend and move closer to the sound transmission port 11.

[0049] Similarly, the protruding structure can also be along... Figure 7 The protruding structure, moving from left to right in the first section 44 and the second section 45, can first rise along the first section 44 to allow the transducer assembly 20 to rise and move away from the sound transmission port 11; after the protruding structure passes through the first section 44, the protruding structure can descend along the second section 45 to allow the transducer assembly 20 to descend and move closer to the sound transmission port 11.

[0050] Furthermore, the drive motor 61 can drive the intermediate shaft 30 to rotate in the same direction, allowing the transducer assembly 20 to perform periodic depth changes. Additionally, at least two sets of internally connected first segments 44 and second segments 45 can be provided. For example, taking two sets, the first connection point of the first segment 44 and second segment 45 in the first set, and the second connection point of the first segment 44 and second segment 45 in the second set. The distance from the first connection point to the sound-transmitting opening 11 and the distance from the second connection point to the sound-transmitting opening 11 can be different, thus allowing the adjustment process to have at least two defined depths. When the pin 52 moves to the first connection point or the second connection point, it can correspond to different treatment depths, such as 2.0mm, 3.0mm, and 4.5mm, corresponding to the dermis, fat layer, and SMAS fascia layer of the human body, respectively.

[0051] Since the guide structure 40 is connected, there is no need to frequently change the rotation direction. The bidirectional movement of the transducer assembly 20 can be achieved simply by controlling the rotation of the intermediate shaft 30, which greatly simplifies the operation process. The transducer assembly 20 can move quickly in both directions, allowing for faster focus adjustment.

[0052] The connected guide structure 40 can form a more continuous and smooth movement path, reducing the impact and vibration that may occur due to direction switching, thereby enhancing stability.

[0053] In addition, the extension depth and number of the first segment 44 and the second segment 45 can be adjusted according to actual needs to achieve accurate and rapid adjustment of the focal length as required.

[0054] In an embodiment of the present invention, the guide structure 40 includes a second through hole (not shown in the figure), and the protrusion structure 50 includes a pin 52, which passes through the second through hole and is detachably connected to the connecting shaft 22.

[0055] In another embodiment, the guide structure 40 and the protrusion structure 50 are configured as a mating structure between the second through hole and the pin 52. The pin 52 and the connecting shaft 22 are detachably connected. This design simplifies the assembly process, facilitates assembly and disassembly, reduces maintenance costs, and lowers manufacturing costs. The mating of the pin 52 and the second through hole provides a precise guide path, ensuring that the transducer assembly 20 can move along a predetermined direction, which helps improve the accuracy and consistency of focus adjustment and achieves precise guidance.

[0056] By combining the pin 52 with the second through hole, the space of the intermediate shaft 30 can be effectively utilized, making the overall structural design more compact and optimizing space utilization. The fit between the pin 52 and the second through hole is simple and reliable, which can improve the reliability and stability of the equipment.

[0057] In an embodiment of the present invention, the intermediate shaft 30 includes a first half-shaft 31 and a second half-shaft (not shown in the figure), the guide structure 40 includes a groove 46, the groove 46 is formed on the inner wall of the intermediate shaft 30, the first segment 44 is located on the first half-shaft 31, the second segment 45 is located on the second half-shaft, and the protrusion structure 50 extends partially into the groove 46.

[0058] It is worth noting that the intermediate shaft 30 includes a first half-shaft 31 and a second half-shaft. Figure 7 The intermediate shaft 30 is the part of the structure that mates with the connecting shaft 22. The guide structure 40 is a groove 46, which includes a first section 44 and a second section 45. By setting the first section 44 on the first half-shaft 31 and the second section 45 on the second half-shaft, the load can be better distributed, local stress concentration can be reduced, and the stability and rigidity of the equipment can be improved. If the guide section on one half-shaft fails or wears out, the other half-shaft can still continue to work. When a part needs maintenance or replacement, it can be handled separately without affecting other parts, simplifying the maintenance process and reducing maintenance costs.

[0059] Distributing the guide structure 40 on the first half-shaft 31 and the second half-shaft, and extending the protrusion structure 50 into the groove 46, can also simplify the design and manufacturing process of individual components.

[0060] In an embodiment of the present invention, the protrusion structure 50 includes two protrusion structures 50 symmetrically arranged on the connecting shaft 22. The first half shaft 31 is provided with the first segment 44 and the second segment 45, and the second half shaft is provided with the first segment 44 and the second segment 45.

[0061] Specifically, by integrating multiple first segments 44 and second segments 45 on the first half-axis 31 and the second half-axis to provide a wider range of motion, the transducer assembly 20 can move bidirectionally at multiple positions, thereby achieving more complex focus adjustment. The multi-segment guide structure 40 provides greater flexibility and can be customized to meet different application requirements. Furthermore, the multi-segment guide structure 40 can provide more positioning points, enabling the transducer assembly 20 to be adjusted at multiple precise positions. Through the multi-segment guide structure 40, the transducer assembly 20 can also be adjusted quickly and accurately at multiple positions, improving the focus adjustment speed.

[0062] Meanwhile, the two opposing protrusions 50 provide more even support for the transducer assembly 20, making it more symmetrical and balanced during movement. This reduces deviations caused by uneven force on one side, improves the accuracy of focus adjustment, and allows the transducer assembly 20 to be quickly and accurately adjusted to the required position in a shorter time. By using two protrusions 50 to bear the load, the pressure on each protrusion 50 is reduced, thereby slowing down wear and extending service life.

[0063] In an embodiment of the present invention, the transducer assembly 20 is provided with guide portions 23 on both sides, and the inner wall of the outer shell 10 is provided with two guide blocks 12 facing each other. The guide blocks 12 are provided with guide grooves 121 in a vertical direction, and the two guide portions 23 extend into the two guide grooves 121 respectively.

[0064] In detail, by setting the guide part 23 and the guide groove 121 to cooperate, the transducer assembly 20 can be moved along a predetermined path, which helps to improve the accuracy of focus adjustment and movement control. The design of the guide part 23 and the guide groove 121 can effectively limit the rotation of the transducer assembly 20 during the movement.

[0065] The guide portions 23 and guide grooves 121 on both sides provide symmetrical support, which improves the stability and consistency of the transducer assembly 20 during movement, and makes assembly more intuitive and simple. Simply align the guide portion 23 with the guide groove 121 and insert it. During maintenance, it is also easier to inspect and replace related parts.

[0066] In an embodiment of the present invention, the ultrasound therapy device 100 further includes a drive member 60, which is installed on the housing 10. The drive end of the drive member 60 extends into the housing 10, and the output end of the drive member 60 is connected to the intermediate shaft 30 and drives the intermediate shaft 30 to rotate.

[0067] It is worth noting that by connecting the drive component 60 to the intermediate shaft 30 and driving the intermediate shaft 30 to rotate, precise control of the position of the transducer assembly 20 can be achieved. By adjusting the rotation speed and direction of the drive component 60, the position of the transducer assembly 20 can be accurately adjusted, thereby achieving high-precision focal length adjustment.

[0068] In one embodiment, the drive unit 60 includes a drive motor 61 and a bearing 62. The drive motor 61 has an encoder inside and is connected to the housing 10. The output shaft of the drive motor 61 is located inside the housing 10. A fixing hole 32 is provided at the end of the intermediate shaft 30 away from the transducer assembly 20. The bearing 62 is fixedly disposed within the fixing hole 32, and the output shaft of the drive motor 61 extends into the hole of the bearing 62 and is fixedly connected to it. The encoder inside the drive motor 61 provides precise position feedback, and the bearing 62 provides stable support, effectively reducing friction between the output shaft of the drive motor 61 and the intermediate shaft 30, reducing vibration, and improving overall stability. Through the connection of the bearing 62, the output shaft of the drive motor 61 can directly and efficiently transmit power to the intermediate shaft 30, improving transmission efficiency.

[0069] A specific implementation example is provided: Figures 1 to 7 The output shaft of the drive motor 61 with encoder extends into the fixing hole 32 of the intermediate shaft 30. A specific guide structure 40 is provided on the lower cylindrical side of the intermediate shaft 30. The length of the guide structure 40 corresponds exactly to three focal plane distances, i.e., it is divided into three equal segments: the starting point corresponds to one focal plane distance, the midpoint corresponds to one focal plane distance, and the ending point corresponds to one focal plane distance (e.g., ...). Figure 5The upper end of the intermediate shaft 30 is tightly fitted with the bearing 62, which is fastened to the corresponding position inside the housing 10. Two sealing rings (not shown in the figure) are fitted onto the lower end of the intermediate shaft 30, and then secured to the housing 10 by four screws using a pressure plate (not shown in the figure). This pressure plate deforms the sealing rings under pressure, allowing the intermediate shaft 30 to rotate while also providing waterproofing. The connecting shaft 22 and the transducer unit 21 are assembled and fixed together. This assembly is inserted into the intermediate shaft 30, and a pin 51 is inserted into the guide structure 40. The pin 51 can move along the track groove within the guide structure 40. When the drive motor 61 rotates, it drives the intermediate shaft 30 to rotate. Since the connecting shaft 22 is assembled inside the intermediate shaft 30 by the pin 51, and the pin 51 is in the guide structure 40 corresponding to the intermediate shaft 30, the guide structure 40 is designed with upper and lower limits so that when the intermediate shaft 30 rotates, the pin 51, the connecting shaft 22 and the transducer unit 21 move up and down along the guide structure 40 (according to the rotation direction of the motor). Since the transducer assembly 20 is provided with guide parts 23 on both sides and the housing 10 is provided with corresponding guide grooves 121 on both sides, the transducer assembly 20 moves along the guide grooves 121, thereby realizing the function of quickly adjusting the focal plane distance of the transducer assembly 20. It has the advantages of being simple, fast, easy to assemble and low cost, and does not require the use of photoelectric sensors (and similar sensor parts) in combination with the above mechanism.

[0070] 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: An outer casing, the outer casing including a sound-permeable opening; A transducer assembly, the transducer assembly being installed within the housing; as well as An intermediate shaft is rotatably connected to the housing and movably connected to the transducer assembly. The intermediate shaft can rotate relative to the housing and the transducer assembly about a first direction, and the intermediate shaft is used to drive the transducer assembly to move toward or away from the sound-permeable opening. The intermediate shaft and the transducer assembly are provided with a guide structure, and the other intermediate shaft and the transducer assembly are provided with a protrusion structure. The intermediate shaft and the transducer assembly are used for limiting and cooperating through the guide structure and the protrusion structure.

2. The ultrasonic therapy device as described in claim 1, characterized in that, The transducer assembly includes a transducer unit and a connecting shaft. The connecting shaft is connected to the transducer unit and is movably connected to the intermediate shaft. The guide structure is located on the intermediate shaft, and the protruding structure is located on the connecting shaft.

3. The ultrasonic therapy device as described in claim 2, characterized in that, The guide structure extends axially along the intermediate shaft, and the guide structure includes a first end and a second end, with the second end of the guide structure located between the first end and the sound-transmitting opening.

4. The ultrasonic therapy device as described in claim 3, characterized in that, The protruding structure includes a pin, and the guide structure includes a first through hole through which the pin passes and is detachably connected to the connecting shaft.

5. The ultrasonic therapy device as described in claim 2, characterized in that, The guiding structure includes a first segment extending toward the sound-transmitting opening and a second segment extending away from the sound-transmitting opening, wherein a first end of the first segment is connected to a second end of the second segment, and a second end of the first segment is connected to a first end of the second segment.

6. The ultrasound therapy device as described in claim 5, characterized in that, The guide structure includes a second through hole, and the protrusion structure includes a pin that passes through the second through hole and is detachably connected to the connecting shaft.

7. The ultrasound therapy device as described in claim 5, characterized in that, The intermediate shaft includes a first half-shaft and a second half-shaft. The guide structure includes a groove formed on the inner wall of the intermediate shaft. The first section is located on the first half-shaft, and the second section is located on the second half-shaft. The protruding structure extends partially into the groove.

8. The ultrasound therapy device as described in claim 7, characterized in that, The protruding structure includes two, and the two protruding structures are symmetrically arranged on the connecting shaft. The first half shaft is provided with the first segment and the second segment, and the second half shaft is provided with the first segment and the second segment.

9. The ultrasound therapy device according to any one of claims 1 to 7, characterized in that, The transducer assembly has guide portions protruding on both sides, and two guide blocks are provided opposite to each other on the inner wall of the housing. The guide blocks have guide grooves opened vertically, and the two guide portions extend into the two guide grooves respectively.

10. The ultrasound therapy device according to any one of claims 1 to 7, characterized in that, The ultrasound therapy device also includes a drive component, which is installed in the housing. The drive end of the drive component extends into the housing, and the output end of the drive component is connected to the intermediate shaft and drives the intermediate shaft to rotate.

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