An ultrasonic therapeutic apparatus

Abstract

The embodiment of the application provides an ultrasonic therapeutic instrument, which comprises a driving shaft, a transmission part, a driven part, a supporting seat, a sliding seat and a transducer; the driving shaft is arranged to rotate around its axial direction; the transmission part is rotationally connected with the driving shaft; the driven part is drivingly connected with the transmission part, and the connection position is deviated from the rotation center of the transmission part; the sliding seat and the driven part are drivingly connected at the position deviated from the rotation center of the transmission part; the sliding seat is arranged on the supporting seat, and the supporting seat allows the sliding seat to linearly slide; and the transducer is arranged on the sliding seat; the ultrasonic therapeutic instrument can use a single motor, and the motor can be controlled to continuously rotate in one direction to drive the driving shaft, so that the reciprocating motion of the transducer is realized, the motor does not need to be reversely rotated, the motor does not need to be frequently decelerated and accelerated, unnecessary travel sections of the transducer are saved, and the cycle of ultrasonic physiotherapy is shortened to a certain extent.

Description

Technical Field

[0001] This application relates to the field of beauty instrument technology, and more particularly to an ultrasonic therapy device. Background Technology

[0002] Ultrasonic therapy devices are commonly used instruments for non-invasive cosmetic procedures. They consist of an ultrasonic treatment head and a control handle. During use, the operator holds the handle and manipulates the ultrasonic treatment head to perform ultrasonic treatment on the skin. The ultrasonic treatment head contains an ultrasonic transducer that emits ultrasonic waves. These waves are transmitted to the subcutaneous tissue, reaching multiple layers such as the lower dermis, superficial fat layer, and SMAS fascia layer. A "thermal coagulation point" with a temperature of 50-70℃ is formed on the central axis of the ultrasonic transducer. This can cause aged collagen to contract, stimulate collagen proliferation and reorganization, and restore skin elasticity and firmness.

[0003] Existing therapeutic devices use a motor to drive the transducer to reciprocate linearly relative to the patient's skin by rotating it in both directions. However, this requires controlling the motor's rotation direction by decelerating before the transducer changes direction and accelerating after the change. This adds unnecessary travel phases to the transducer and increases the time required for its reciprocating motion. Frequent deceleration and acceleration of the motor can also easily lead to excessive wear and tear on the motor, causing it to fail. Utility Model Content

[0004] This application provides an ultrasound therapy device. The ultrasound therapy device of this application can use a single motor and can control the motor to rotate continuously in one direction to drive the drive shaft and realize the reciprocating motion of the transducer. In this way, this application does not require the motor to rotate in both directions, and the motor does not need to frequently decelerate and accelerate, eliminating unnecessary travel segments of the transducer, which can shorten the cycle of ultrasound therapy to a certain extent.

[0005] This application provides an ultrasonic therapy device, including an active shaft, a transmission component, a driven component, a support base, a slide base, and a transducer;

[0006] The drive shaft is rotatably arranged about its axial direction;

[0007] The transmission component and the drive shaft are rotatably connected;

[0008] The driven member and the transmission member are connected by a transmission, and the connection position is offset from the rotation center of the transmission member;

[0009] The slide and the driven member are connected in a transmission connection at a position offset from the rotation center of the transmission member;

[0010] The slide is mounted on the support base, and the support base allows the slide to slide in a straight line;

[0011] The transducer is mounted on the slide.

[0012] In some embodiments, at least two parallel paths are formed on the support base, and the slide is allowed to slide along at least two of the paths.

[0013] In some embodiments, the ultrasonic therapy device has a treatment head, the treatment head including a housing and the transmission member, the driven member, the support base, the slide base and the transducer disposed inside the housing;

[0014] One end of the drive shaft is located outside the housing, and the other end of the drive shaft extends into the housing and is rotatably connected to the transmission component;

[0015] Furthermore, a dynamic seal is formed between the outer periphery of the drive shaft and the housing at the connection point.

[0016] In some embodiments, the trajectory formed by the linear sliding of the slide block intersects perpendicularly with the extension line of the drive shaft axis.

[0017] In some embodiments, the transmission member has a first position and a second position, the drive shaft is driven to the first position, and the driven member is driven to the second position;

[0018] The driven member has a third position and a fourth position. The projections of the third position and the second position on a projection plane perpendicular to the axis of the drive shaft coincide. The slide is driven and connected to the fourth position.

[0019] The distance between the first position and the second position is equal to the distance between the third position and the fourth position.

[0020] In some embodiments, the support base is provided with a limiting groove, and the follower is allowed to move within the limiting groove and form active contact with the inner sidewall of the limiting groove to restrict the slide from moving along a preset trajectory.

[0021] In some embodiments, the limiting groove includes a first straight groove and a second straight groove, wherein the middle portion of the first straight groove and the middle portion of the second straight groove intersect to form a clearance space;

[0022] The driven member has an intermediate connecting part and a first limiting part and a second limiting part symmetrically arranged on both sides of the intermediate connecting part. The intermediate connecting part and the transmission member are connected in transmission within the clearance space, so that the first limiting part and the slide are connected in transmission within the first straight groove, and the second limiting part and the inner wall of the second straight groove form a movable contact.

[0023] The driven member is driven to move by the transmission member, so that the second limiting part moves along the inner sidewall of the second straight groove and according to a preset trajectory, and the first limiting part drives the slide block to move within the first straight groove, thereby restricting the slide block to move according to the preset trajectory.

[0024] In some embodiments, the transmission member, the driven member, and the slide are arranged sequentially along the axial direction of the drive shaft;

[0025] The support base is provided with a sliding guide that can provide a sliding path, and the slide base has a sliding engagement part, which is slidably connected to the inside or outside of the sliding guide.

[0026] In some embodiments, a bushing is provided inside the sliding mating part, and the bushing is sleeved on the outer periphery of the sliding guide part.

[0027] In some embodiments, the outer periphery of the bushing and the inner wall of the sliding fit are interference-fitted;

[0028] And / or, both ends of the bushing are formed with protrusions, and the protrusions are interference-fitted with the side edges of both ends of the sliding fit portion.

[0029] In some embodiments, the ultrasound therapy device further includes a detection component having a first component and a second component. The first component is capable of moving with the slide, or the first component is driven to move synchronously with the slide, the second component does not undergo a positional change, and the first component and the second component are capable of detecting each other's positions to provide feedback on changes in the position of the slide.

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

[0031] The ultrasonic therapy device of this application includes an active shaft, a transmission component, a driven component, a support base, a slide, and a transducer. The active shaft is rotatably arranged around its axial direction. The transmission component is rotatably connected to the active shaft, and the driven component is drive-connected to the transmission component. The connection position between the driven component and the transmission component is offset from the rotation center of the transmission component. The slide and the driven component are drive-connected at a position offset from the rotation center of the transmission component. The slide is mounted on the support base, which allows the slide to slide linearly. The transducer is mounted on the slide and can follow the movement of the slide. The active shaft can be driven to rotate, which drives the transmission component to rotate, thereby driving the driven component to rotate, and in turn, driving the slide and the transducer thereon to slide back and forth linearly on the support base. Thus, the ultrasonic therapy device of this application can use a single motor, and the motor can be controlled to rotate continuously in one direction to drive the active shaft and realize the reciprocating motion of the transducer. It does not require the motor to rotate in both directions, and the motor does not need to decelerate and accelerate frequently, which is less likely to cause excessive wear on the motor. It also eliminates unnecessary travel segments of the transducer, thus shortening the cycle of ultrasonic therapy to a certain extent. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings.

[0033] Figure 1 This is a schematic diagram of the treatment head of an ultrasonic therapy device according to an embodiment of this application;

[0034] Figure 2 for Figure 1 A structural schematic diagram of the treatment head from another perspective is shown;

[0035] Figure 3 for Figure 2 The diagram shows the mating relationship between the drive shaft, the detection component, and the support base.

[0036] Figure 4 for Figure 2 The internal cross-sectional view of the treatment head shown is shown.

[0037] Figure 5 for Figure 3 The diagram shows the mating relationship between the drive shaft and the slide.

[0038] Figure 6 for Figure 3 The diagram shows the mating relationship between the support and the slide.

[0039] The meanings of the reference numerals in the attached figures are as follows:

[0040] 1. Drive shaft; 2. Transmission component; 3. Driven component; 31. Intermediate connecting part; 32. First limiting part; 33. Second limiting part; 34. Limiting member; 4. Support seat; 41. Limiting groove; 411. First straight groove; 412. Second straight groove; 413. Clearance space; 42. Sliding guide part; 5. Slide seat; 51. Sliding mating part; 52. Bushing; 6. Transducer; 7. Housing; 8. Detection assembly; 81. First component; 82. Second component; 83. Support plate; 84. Conductive part; 9. Motion feedback assembly; 91. First feedback component; 92. Second feedback component. Detailed Implementation

[0041] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0042] like Figures 1-6 As shown in the illustration, this application provides an ultrasonic therapy device, including an active shaft 1, a transmission component 2, a driven component 3, a support base 4, a slide 5, and a transducer 6; the active shaft 1 is rotatably arranged around its axial direction, the transmission component 2 is rotatably connected to the active shaft 1, the driven component 3 is drive-connected to the transmission component 2, and the connection position is offset from the rotation center of the transmission component 2; the slide 5 and the driven component 3 are drive-connected at a position offset from the rotation center of the transmission component 2; the slide 5 is disposed on the support base 4, the support base 4 allows the slide 5 to slide linearly, and the transducer 6 is disposed on the slide 5.

[0043] Based on the above technical solution, the drive shaft 1 can be driven to rotate, which in turn drives the transmission component 2 to rotate, thereby driving the driven component 3 to rotate, and in turn driving the slide 5 and the transducer 6 on it to slide back and forth linearly on the support 4. While the transducer 6 is reciprocating, it can emit ultrasonic waves. The ultrasonic waves are transmitted to the subcutaneous tissue of the human body and can reach multiple layers such as the lower dermis, superficial fat layer and SMAS fascia layer, forming a "thermal coagulation point" with a temperature of 50°C to 70°C. This causes the aging collagen to contract, stimulates collagen proliferation and reorganization, and restores the skin's elasticity and makes it firmer.

[0044] The ultrasound therapy device of this application can use a single motor (not shown in the attached figure) and can control the motor to rotate continuously in one direction, such as continuously rotating forward or in reverse, to drive the drive shaft 1 and realize the reciprocating motion of the transducer 6; it does not require the motor to rotate forward or in reverse, and the motor does not need to frequently decelerate and accelerate, which is less likely to cause excessive wear on the motor, and also eliminates the unnecessary travel segment of the transducer 6, which shortens the cycle of ultrasound therapy to a certain extent.

[0045] It should be noted that a motor can be used to drive the rotation of the drive shaft 1. The motor is a known structure in the prior art and is commonly used in ultrasonic therapy devices. Here, this application will not describe the motor, but it can be assumed that the drive shaft 1 is driven directly or indirectly by the motor to rotate.

[0046] Driven by the slide 5, the transducer 6 can slide linearly relative to the support 4. The support 4 is provided with guide rails, guide rods or grooves to form a path for the slide 5 to slide linearly. The slide 5 is allowed to slide along the path, which ensures that the slide 5 will not deviate, so as to precisely control the position of the transducer 6 and enable the ultrasonic energy emitted by the transducer 6 to accurately act on the subcutaneous tissue of the patient, so as to achieve better ultrasonic physiotherapy effect.

[0047] In some embodiments, at least two parallel paths are formed on the support base 4, and the slide 5 is allowed to slide along at least two paths, thereby ensuring that the slide 5 will not deviate when sliding, that is, ensuring that the transducer 6 will not deviate when sliding in a straight line, and ensuring the accuracy of the ultrasonic energy it outputs.

[0048] Optionally, if two paths are formed on the support base 4, the extension line of the axis of the drive shaft 1 can be perpendicular to these two paths, and the distance from the extension line of the axis of the drive shaft 1 to these two paths is equal. This setting facilitates the planning of the sliding stroke of the slide base 5.

[0049] The ultrasonic therapy device of this application has a treatment head, which includes a housing 7 and a transmission component 2, a driven component 3, a support base 4, a slide base 5, and a transducer 6 disposed inside the housing 7. One end of the drive shaft 1 is located outside the housing 7, and the other end of the drive shaft 1 can be connected to the transmission component 2 inside the housing 7. Furthermore, the outer periphery of the drive shaft 1 and the housing 7 form a dynamic seal at the connection position to prevent leakage of the sound conduction medium inside the housing 7 when the drive shaft 1 rotates, which would affect the output of ultrasonic energy and the cooling of the transducer 6.

[0050] In addition, when the drive shaft 1 stops rotating, a static seal can be formed at the connection between the drive shaft 1 and the housing 7, which also prevents the sound transmission medium from leaking from the connection.

[0051] Alternatively, a method commonly used in the prior art can be used to form a dynamic seal and a static seal at the connection between the drive shaft 1 and the housing 7. The technical details will not be described in detail here.

[0052] The internal space of the treatment head housing 7 is limited. At the same time, inside the treatment head housing 7, the transducer 6 is indirectly driven by the drive shaft 1 to perform reciprocating linear sliding. The trajectory formed by the linear sliding of the slide block 5 intersects perpendicularly with the extension line of the axis of the drive shaft 1. The transducer 6 moves symmetrically on opposite sides of the radial direction of the drive shaft 1. This makes it convenient to set the treatment head housing 7 into a symmetrical shape, so as to make full use of the limited internal space of the housing 7, reduce the size of the housing 7 to a minimum, reduce cost expenditure, and the symmetrical housing 7 will also look more aesthetically pleasing.

[0053] Correspondingly, the middle part of the transmission member 2 is connected to the output end of the drive shaft 1, and the middle part of the driven member 3 is connected to the transmission member 2. The transmission member 2 has a first position and a second position. The drive shaft 1 is connected to the first position, and the driven member 3 is connected to the second position. The driven member 3 has a third position and a fourth position. The projections of the third position and the second position on the projection plane perpendicular to the axis of the drive shaft 1 coincide. The slide 5 is connected to the fourth position. The distance between the first position and the second position and the distance between the third position and the fourth position are equal.

[0054] At least two parallel paths are formed on the support base 4. The slide 5 is restricted to slide back and forth in a straight line along these paths. The stroke of the slide 5 is determined. However, when sliding along these paths, the slide 5 will inevitably fluctuate, causing the transducer 6 that follows its movement to shift in position. This may affect the landing point of the ultrasonic energy output by the transducer 6.

[0055] To ensure smoother movement of the slide block 5 and accurate positioning of the transducer 6, a limiting groove 41 is provided on the support base 4. The follower 3 is allowed to move within the limiting groove 41 and make active contact with the inner wall of the limiting groove 41 to restrict the slide block 5 from moving along a preset trajectory. This prevents deviations in the movement of the follower 3, which could cause fluctuations in the slide block 5 during sliding and result in inaccurate positioning of the transducer 6. This ensures that the ultrasonic energy output by the transducer 6 lands precisely.

[0056] Optionally, the limiting groove 41 includes a first straight groove 411 and a second straight groove 412. The middle part of the first straight groove 411 and the middle part of the second straight groove 412 intersect to form a clearance space 413. The driven member 3 has an intermediate connecting part 31 and a first limiting part 32 and a second limiting part 33 symmetrically arranged on both sides of the intermediate connecting part 31. The intermediate connecting part 31 and the transmission member 2 are connected in transmission within the clearance space 413, so that the first limiting part 32 and the slide 5 are connected in transmission within the first straight groove 411. The second limiting part 33 and the inner sidewall of the second straight groove 412 form a movable contact. The driven member 3 is driven by the transmission member 2 to generate movement. The second limiting part 33 moves along the inner sidewall of the second straight groove 412 and according to a preset trajectory, so that the first limiting part 32 drives the slide 5 to move within the first straight groove 411, thereby restricting the slide 5 to move according to a preset trajectory.

[0057] Furthermore, a limiting member 34 is movably provided on the second limiting part 33, and the limiting member 34 and the inner sidewall of the second straight groove 412 form rolling or sliding contact.

[0058] In some embodiments, the transmission member 2, the driven member 3, and the slide 5 are arranged sequentially along the axial direction of the drive shaft 1. The power of the drive shaft 1 is first transmitted to the transmission member 2, then to the driven member 3, and then to the slide 5. This arrangement avoids interference between the transmission member 2, the driven member 3, and the slide 5 during their movement.

[0059] The support base 4 is provided with a sliding guide part 42 that can provide a sliding path, and the slide base 5 has a sliding mating part 51. The sliding mating part 51 is slidably connected to the inside or outside of the sliding guide part 42. By restricting the slide base 5, the transducer 6 is ensured to move in a straight line without fluctuation, thus ensuring the accuracy of ultrasound treatment.

[0060] Optionally, the sliding guide 42 includes a guide rod, a guide groove, or a guide rail.

[0061] For example, a guide rod can be detachably installed on the support base 4, a groove can be cut into the support base 4 to form a guide groove, a guide rail can be detachably installed on the support base 4, or the guide rail can be directly machined on the support base 4 during manufacturing, and the guide rail and the support base 4 are an integral structure.

[0062] A guide rod is provided on the support base 4 as a sliding guide part 42. A hole can be opened on the slide 5 to form a sliding fit part 51. The guide rod is connected in the sliding fit part 51, which can restrict the slide 5 from sliding back and forth along its axis.

[0063] Furthermore, a bushing 52 is provided inside the sliding mating part 51. The bushing 52 is sleeved on the outer periphery of the sliding guide part 42. The bushing 52 can form a buffer to prevent excessive wear between the sliding mating part 51 and the sliding guide part 42, which would cause the slide 5 to gradually shift during sliding, resulting in inaccurate output of the ultrasonic energy of the transducer 6 on the skin.

[0064] Furthermore, the outer periphery of the bushing 52 and the inner wall of the sliding fit portion 51 are interference-fitted, and / or, both ends of the bushing 52 are formed with protrusions, and the protrusions are interference-fitted with the side edges of both ends of the sliding fit portion 51 to ensure the accuracy of the fit between the bushing 52 and the sliding fit portion 51.

[0065] In some embodiments, the ultrasound therapy device of this application further includes a detection component 8, which has a first component 81 and a second component 82. The first component 81 can move with the slide 5, or the first component 81 is driven to move synchronously with the slide 5, the second component 82 does not produce a position change, and the first component 81 and the second component 82 can detect each other's positions to provide feedback on the position change of the slide 5.

[0066] The detection component 8 can correct errors in the design and assembly of the mechanical structure that drives the transducer 6 to move, and avoid deviations in the starting and ending positions of the transducer 6, thereby ensuring the uniformity of energy output of the ultrasonic therapy device of this application, so as to ensure the effect of beauty care.

[0067] In some embodiments, the first component 81 is disposed on the drive shaft 1 and follows the drive shaft 1 to perform a circular motion.

[0068] Transducer 6 is driven to perform periodic motion, and similarly, the first component 81 is driven to perform periodic motion. The first component 81 and transducer 6 are driven to move synchronously, that is, the first component 81 and transducer 6 are driven to move simultaneously at their respective starting positions. When the first component 81 moves to a certain position on its own trajectory, by combining the movement speed and period of transducer 6 with the movement period of the first component 81, the current position of transducer 6 can be determined. In other words, the first component 81 can reflect the position of transducer 6. Based on the position of the first component 81, the real-time position of transducer 6 can be determined, and the control circuit can accurately control the energy output of transducer 6 to achieve a better ultrasound therapy effect.

[0069] Here, the first component 81 is set on the drive shaft 1 and moves in a circular motion following the drive shaft 1. This facilitates the acquisition of the position of the first component 81 and simplifies the structure in which the drive shaft 1 synchronously drives the transducer 6 and the first component 81. The structure that drives the first component 81 becomes simpler, resulting in smaller errors and higher precision during assembly. Moreover, by setting the first component 81 on the drive shaft 1 and driving the transducer 6 to move, the first component 81 and the transducer 6 are set separately, avoiding mutual interference between the two. This ensures accurate position detection of the first component 81 and prevents the first component 81 from affecting the energy output of the transducer 6.

[0070] The movement cycle of the first component 81 can be the same as the movement cycle of the transducer 6. The position where the first component 81 and a second component 82 come into contact can be used as the starting point for driving the first component 81 to move. At this time, the position of the transducer 6 on the preset path is the starting point of its movement, that is to say, the transducer 6 can be detected at the starting point of its movement. A second component 82 is also set at the halfway point of the movement path of the first component 81. After the first component 81 rotates with the drive shaft 1 for half a cycle, it can come into contact with the other second component 82. At this time, the transducer 6 reaches the end point on its preset path. After passing the end point, the transducer 6 moves back. Generally, when the transducer 6 is at the starting point and the end point, the transducer 6 deviates from the ultrasonic energy output window on the treatment head shell 7. The control circuit can control the transducer 6 not to output energy to avoid energy waste.

[0071] In some embodiments, the detection component 8 may include a plurality of first components 81, which are evenly spaced and distributed around the transducer 6. By setting a plurality of first components 81, the position of the transducer 6 can be acquired multiple times when the transducer 6 moves, and the control circuit can more accurately control the output of ultrasonic energy of the transducer 6, making ultrasonic therapy more precise.

[0072] As a preferred embodiment, the first component 81 can be uniformly arranged around the outer periphery of the drive shaft 1.

[0073] The period T of the reciprocating motion of transducer 6 is a positive integer multiple of the period T of the circular motion of the first component 81. The period T1 of the reciprocating motion of transducer 6 is equal to the period T2 of the circular motion of the first component 81, or the period T1 of the reciprocating motion of transducer 6 is twice or more than the period T2 of the circular motion of the first component 81. There is a reduction ratio between the drive shaft 1 and the slide 5. Optionally, a reduction transmission structure, such as a gear reduction transmission structure or a synchronous belt reduction transmission structure, is provided between the drive shaft 1 and the slide 5. In the case of a gear reduction transmission structure, a gear can be installed between the drive end of the drive shaft 1 and the transmission component 2 for transmission. The motion cycle of the drive shaft 1 is the motion cycle of the first component 81, and the motion cycle of the transmission component 2 is the motion cycle of the transducer 6. The reduction ratio of the gear between the drive shaft 1 and the transmission component 2 is the ratio of the motion cycle T1 of the transducer 6 to the motion cycle T2 of the first component 81. A synchronous belt reduction transmission structure can be installed between the drive shaft 1 and the slide 5. Common installation methods in the prior art can be referenced, and their technical details will not be described in detail here.

[0074] When the central angle of the first component 81 in circular motion is 0°, the transducer 6 is at its starting position on its motion path.

[0075] If the cycle of transducer 6's movement is twice the cycle of the first component 81's movement, then for every cycle transducer 6 moves, the first component 81 moves for two cycles. Transducer 6 can be detected twice within one cycle. Furthermore, when the first component 81 and the second component 82 come into contact, the position of the first component 81 is taken as the 0° central angle of its circular motion. Therefore, when the cycle of transducer 6's movement is twice the cycle of the first component 81's movement, transducer 6 is detected at the starting and ending positions of its single-stroke motion. At these starting and ending positions, transducer 6 deviates from the ultrasonic energy output window of the treatment head. At this point, the control circuit can control the transducer... Transducer 6 does not output energy to avoid energy waste. For example, the cycle of transducer 6 is four times the cycle of the first component 81. Thus, for every cycle of transducer 6, the first component 81 moves for four cycles. Transducer 6 can be detected four times within one cycle. These four positions can be the starting position, the ending position, and the intermediate position between the starting and ending positions of transducer 6. This is equivalent to dividing the one-way journey of the preset path of transducer 6 into multiple segments. By detecting the starting or ending point of each segment, the position of transducer 6 can be detected. The control circuit can know which segment of the journey transducer 6 has moved to within one cycle and control the energy output of transducer 6 accordingly.

[0076] In some embodiments, the detection component 8 includes a tactile switch and a triggering component. A triggering protrusion is formed on the triggering component. The tactile switch is configured as a first component 81 and the triggering component is configured as a second component 82. Alternatively, the tactile switch is configured as the second component 82 and the triggering component is configured as the first component 81. The first component 81 is driven to move and can contact the second component 82 to generate a trigger. The tactile switch is electrically connected to a control circuit, and the control circuit can directly detect that the tactile switch has been triggered, thereby determining the position of the transducer 6.

[0077] Specifically, the detection component 8 also includes a support plate 83, which is disposed on the outer periphery of the active shaft 1 and does not rotate with the active shaft 1. The support plate 83 is an FPC circuit board that integrates two or more tactile switches. The tactile switches are symmetrical with respect to the axis of the active shaft 1. The ribbon cable on the support plate 83 forms a conductive part 84, which is electrically connected to the tactile switch. The other end of the conductive part 84 is electrically connected to the circuit on the treatment head housing 7. Thus, the tactile switch and the control circuit are electrically connected. The triggering component is disposed on the active shaft 1, moves with the active shaft 1, and can contact the tactile switch. When the tactile switch is triggered, the control circuit obtains information, that is, obtains the position of the transducer 6.

[0078] When the transducer 6 moves along a preset path, its starting and ending positions are generally offset from the ultrasonic energy output window of the treatment head housing 7. If the transducer 6 emits energy at this time, it will be blocked by the wall at the edge of the window, resulting in waste. To address this, this application can set two tactile switches on the support plate 83. The two tactile switches are symmetrical about the axis of the active shaft 1, and the movement cycle of the triggering component is the same as the movement cycle of the transducer 6. When one of the tactile switches contacts the triggering component, the angle of rotation of the triggering component is counted as 0°. At this time, the angle of rotation of the active shaft 1 is also 0°. The position of the transducer 6 at this time is the starting position of the transducer 6's movement. In this way, the tactile switches can be triggered at the starting and ending positions of the transducer 6's movement, respectively. Thus, the control circuit can control the transducer 6 to stop outputting energy.

[0079] In some other embodiments, the second component 82 includes a photoelectric sensor having a transmitting end and a receiving end, and the photoelectric sensor forms a light-conducting region between its transmitting end and the receiving end. The first component 81 moves such that a portion of it can extend into the light-conducting region to block the light emitted from the transmitting end. The detection component 8 can respond to the control circuit with the position of the first component 81 based on the blocking of the light.

[0080] As a preferred approach, photoelectric sensors include optical couplers and laser beam sensors.

[0081] In this preferred embodiment, the first component 81 can be a sheet-like component that blocks the light emitted by the photoelectric sensor, so that the receiving end of the photoelectric sensor cannot receive the light, that is, the position of the first component 81 is detected, and correspondingly, the position of the transducer 6 is obtained; the optocoupler sensor can be a laser diode or an ordinary diode as the light source.

[0082] The transducer 6 is movably disposed inside the housing 7, and the detection component 8 is disposed outside the housing 7. One end of the drive shaft 1 can extend into the housing 7, and the detection component 8 is disposed on the other end of the drive shaft 1 located outside the housing 7. The housing 7 is filled with a sound-conducting medium for conducting ultrasonic waves generated by the vibration of the transducer 6 and for cooling the transducer 6. The housing 7 and the drive shaft 1 form a movable seal at the connection position. The detection component 8 is disposed outside the housing 7 to avoid interference from the sound-conducting medium.

[0083] In some embodiments, the ultrasound therapy device of this application further includes a motion feedback component 9 for providing feedback on the constant motion of the transducer 6. The motion feedback component 9 includes a first feedback component 91 and a second feedback component 92. The first feedback component 91 can move with the transducer 6 and the second feedback component 92 can change position. The second feedback component 92 can provide feedback on the position of the first feedback component 91 to the control circuit, that is, provide feedback to the control circuit that the transducer 6 is currently in motion, so as to control the output energy of the transducer 6.

[0084] The detection component 8 can detect the position of the transducer 6 along its preset path. Between these positions, the transducer 6 can also be detected by the motion feedback component 9 to be in motion, indicating that the transducer 6 is in working state. At this time, the control circuit can control the transducer 6 to output energy accordingly. The detection component 8 and the motion feedback component 9 confirm that the transducer 6 is in motion, ensuring that the transducer 6 will not repeatedly output energy at the same position, and will not cause burns to the person being treated.

[0085] Specifically, the second feedback component 92 is located at the beginning, middle or end of the movement path of the first feedback component 91.

[0086] In a preferred embodiment, the motion feedback component 9 includes a Hall element and a magnetic component, wherein the Hall element is configured as a first feedback component 91 and the magnetic component is configured as a second feedback component 92, or the Hall element is configured as a second feedback component 92 and the magnetic component is configured as a first feedback component 91.

[0087] When the transducer 6 moves along the preset path, the relative position between the Hall element and the magnetic component is constantly changing. The magnetic field generated by the magnetic component is changing relative to the Hall element. The Hall element can sense the changing magnetic field and thus infer that the transducer 6 is in motion.

[0088] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0089] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0090] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0091] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. An ultrasonic therapeutic apparatus characterized by comprising: It includes a drive shaft, transmission components, driven components, support base, slide block, and transducer; The drive shaft is rotatably arranged about its axial direction; The transmission component and the drive shaft are rotatably connected; The driven member and the transmission member are connected by a transmission, and the connection position is offset from the rotation center of the transmission member; The slide and the driven member are connected in a transmission manner at a position offset from the rotation center of the transmission member; The slide is mounted on the support base, and the support base allows the slide to slide in a straight line. The transducer is mounted on the slide.

2. The ultrasonic therapy apparatus of claim 1, wherein, The support base has at least two parallel paths, and the slide is allowed to slide along at least two of the paths.

3. The ultrasonic therapy apparatus of claim 1, wherein, The ultrasonic therapy device has a treatment head, which includes a housing and a transmission component, a driven component, a support base, a slide base, and a transducer disposed inside the housing. One end of the drive shaft is located outside the housing, and the other end of the drive shaft extends into the housing and is rotatably connected to the transmission component; Furthermore, a dynamic seal is formed between the outer periphery of the drive shaft and the housing at the connection point.

4. The ultrasonic therapy device according to claim 1, characterized in that, The trajectory formed by the linear sliding of the slide block intersects perpendicularly with the extension line of the axis of the drive shaft.

5. The ultrasonic therapy device according to claim 1, characterized in that, The transmission component has a first position and a second position, the drive shaft is driven to the first position, and the driven component is driven to the second position; The driven member has a third position and a fourth position. The projections of the third position and the second position on a projection plane perpendicular to the axis of the drive shaft coincide. The slide is driven and connected to the fourth position. The distance between the first position and the second position is equal to the distance between the third position and the fourth position.

6. The ultrasonic therapy device according to claim 1, characterized in that, The support base is provided with a limiting groove, and the follower is allowed to move within the limiting groove and form a movable contact with the inner sidewall of the limiting groove to restrict the slide to move along a preset trajectory.

7. The ultrasonic therapy device according to claim 6, characterized in that, The limiting groove includes a first straight groove and a second straight groove, and the middle part of the first straight groove and the middle part of the second straight groove intersect to form a clearance space. The driven member has an intermediate connecting part and a first limiting part and a second limiting part symmetrically arranged on both sides of the intermediate connecting part. The intermediate connecting part and the transmission member are connected in transmission within the clearance space, so that the first limiting part and the slide are connected in transmission within the first straight groove, and the second limiting part and the inner wall of the second straight groove form a movable contact. The driven member is driven to move by the transmission member, so that the second limiting part moves along the inner sidewall of the second straight groove and according to a preset trajectory, and the first limiting part drives the slide block to move within the first straight groove, thereby restricting the slide block to move according to the preset trajectory.

8. The ultrasonic therapy device according to claim 1, characterized in that, Along the axial direction of the drive shaft, the transmission component, the driven component, and the slide are arranged sequentially. The support base is provided with a sliding guide that can provide a sliding path, and the slide base has a sliding engagement part, which is slidably connected to the inside or outside of the sliding guide.

9. The ultrasonic therapy device according to claim 8, characterized in that, A bushing is provided inside the sliding mating part, and the bushing is sleeved on the outer periphery of the sliding guide part.

10. The ultrasonic therapy device according to claim 9, characterized in that, The outer periphery of the bushing and the inner sidewall of the sliding fit are interference-fitted; And / or, both ends of the bushing are formed with protrusions, and the protrusions are interference-fitted with the side edges of both ends of the sliding fit portion.

11. The ultrasonic therapy device according to claim 1, characterized in that, The ultrasound therapy device also includes a detection component, which has a first component and a second component. The first component can move with the slide, or the first component is driven to move synchronously with the slide. The second component does not change position, and the first component and the second component can detect each other's positions to provide feedback on changes in the position of the slide.

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