An ultrasonic therapeutic apparatus

Abstract

The embodiment of the application discloses an ultrasonic therapeutic instrument, which comprises a transducer, a control circuit, a power output mechanism and a detection assembly; the power output mechanism is in transmission connection with the transducer and can drive the transducer to reciprocate on a preset path; the detection assembly has a first component and a second component, the first component is in transmission connection with the power output mechanism; the first component can move along with the transducer or can be driven synchronously with the transducer, and the first component performs periodic motion; the second component is arranged on the motion path of the first component; wherein the first component is driven to move to contact the second component or is driven to move to be close to the second component; in this way, the first component is detected by the detection assembly, the detection assembly feeds back the position of the first component to the control circuit, and the control circuit controls the energy output condition of the transducer; the position of the transducer can be accurately detected, so that the energy output condition of the transducer can be accurately controlled.

Description

Technical Field

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

[0002] Some beauty devices have a stationary housing, allowing the transducer to move inside. This allows for a wider range of skin care while maintaining the relative position between the housing and the patient's skin. However, in these types of devices, it is crucial to accurately detect the transducer's position. If the control system cannot accurately detect the transducer's location, it may repeatedly output energy to the same spot on the skin. This excessive energy can damage the skin. For example, if an ultrasonic beauty device applies ultrasonic energy to the same spot for an extended period, it can easily cause severe burns to the skin in that area.

[0003] To avoid the above problems, existing beauty device products generally plan the position of the transducer by the rotation time of the motor, the number of rotations, or the number of pulses of the stepper motor. However, due to errors in the design and assembly of the mechanical structure that drives the transducer, the movement distance of the transducer may deviate. After long-term use of the beauty device, the starting and ending positions of the transducer's movement will inevitably deviate, affecting the uniformity of the energy output of the beauty device and resulting in poor treatment effect. Utility Model Content

[0004] This application provides an ultrasonic therapy device. This application can accurately detect the position of the transducer to accurately control the energy output of the transducer, ensuring that the energy output to the skin of the patient is uniform, so as to guarantee the cosmetic therapy effect and enable the patient to have a good cosmetic therapy experience.

[0005] This application provides an ultrasonic therapy device, including a transducer and a control circuit for controlling the output energy of the transducer;

[0006] Also includes:

[0007] A power output mechanism is connected to the transducer and causes the transducer to reciprocate along a preset path; and

[0008] The detection assembly has a first component and a second component;

[0009] The first component and the power output mechanism are connected by a transmission.

[0010] The first component can move with the transducer, or the first component can be driven synchronously with the transducer, and the first component can perform periodic movements;

[0011] The second component is positioned on the movement path of the first component;

[0012] Wherein, the first component is driven to move to contact the second component, or the first component is driven to move to approach the second component;

[0013] Thus, the position of the first component is detected by the detection component, the detection component feeds back the position of the first component to the control circuit, and the control circuit controls the energy output of the transducer.

[0014] In some embodiments, the power output mechanism includes a drive shaft and a transmission assembly. The drive shaft and the transmission assembly are connected in a transmission manner, and the transmission assembly is connected in a transmission manner to the transducer. The drive shaft can be driven to rotate, thereby driving the transmission assembly to move, and in turn driving the transducer to reciprocate along a preset path. The first component is disposed on the drive shaft and follows the drive shaft to perform circumferential motion.

[0015] In some embodiments, the preset path is perpendicular to or parallel to the axis of the drive shaft.

[0016] In some embodiments, the detection component includes a plurality of the first components, which are evenly spaced and distributed around each other.

[0017] In some embodiments, the period T1 of the reciprocating motion of the transducer is a positive integer multiple of the period T2 of the circular motion of the first component;

[0018] Wherein, when the central angle of the first component's circular motion is 0°, the transducer is at its starting position on its motion path.

[0019] In some embodiments, the detection component includes a tactile switch and a triggering component, wherein a triggering protrusion is formed on the triggering component;

[0020] The tactile switch is configured as the first component, and the triggering component is configured as the second component; or, the tactile switch is configured as the second component, and the triggering component is configured as the first component.

[0021] The first component is driven to move and contact the second component, so that the position of the first component is detected;

[0022] or,

[0023] The detection component includes a photoelectric sensor and a light-shielding element. The photoelectric sensor has a transmitting end and a receiving end, and a light-conducting region is formed between the transmitting end and the receiving end of the photoelectric sensor.

[0024] The light-shielding element is configured as the first component, and the photoelectric sensor is configured as the second component; or, the light-shielding element is configured as the second component, and the photoelectric sensor is configured as the first component.

[0025] The first component is driven to move closer to the second component so that the light in the light transmission area is blocked, and the detection component can respond to the control circuit with the position of the first component based on the blocking of the light.

[0026] In some embodiments, the ultrasound therapy device includes a housing, a transducer disposed inside the housing, a detection component disposed outside the housing, a portion of a power output mechanism disposed inside the housing and drivenly connected to the transducer, and another portion of the power output mechanism disposed outside the housing and drivenly connected to the first component.

[0027] In some embodiments, the ultrasound therapy device further includes a motion feedback component, which includes a first feedback component and a second feedback component;

[0028] The first feedback component can move with the transducer and change position with the second feedback component. The second feedback component can respond to the control circuit with the position of the first feedback component.

[0029] In some embodiments, the second feedback component is disposed at the beginning, middle or end of the movement path of the first feedback component.

[0030] In some embodiments, the motion feedback component includes a Hall element and a magnetic component;

[0031] Wherein, the Hall element is configured as the first feedback component, and the magnetic component is configured as the second feedback component;

[0032] Alternatively, the Hall element may be configured as the second feedback component, and the magnetic component may be configured as the first feedback component.

[0033] As can be seen from the above technical solutions, the embodiments of this application have the following advantages:

[0034] The power output mechanism is driven by the transducer, enabling the transducer to reciprocate along a preset path. The first component of the detection assembly is also driven by the power output mechanism. The first component can follow the transducer's movement, meaning its movement trajectory is the same as the transducer's, or it can be driven synchronously with the transducer and perform periodic movements. The first component can also provide feedback on the periodic changes of the transducer's movement along its path. The second component of the detection assembly is positioned along the movement path of the first component. When the first component is driven to contact the second component, or when it is driven to approach the second component, the relative position of the first and second components can be detected by the detection assembly. The detection assembly then feeds back the position of the first component and the period of its movement to the control circuit. Based on the period of the first component's movement and its current position, the control circuit determines the transducer's current position and controls the transducer's energy output to ensure uniform energy output to the patient's skin, avoiding repeated energy output at the same location on the patient's skin to prevent burns and providing a better cosmetic treatment experience. Attached Figure Description

[0035] 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.

[0036] Figure 1 This is a schematic diagram of the structure of a treatment head for an ultrasonic therapy device disclosed in an embodiment of this application;

[0037] Figure 2 for Figure 1 A structural schematic diagram of the treatment head from another perspective is shown;

[0038] Figure 3 for Figure 2 The diagram shows the working relationship between the drive shaft, the detection component, and the transmission component.

[0039] Figure 4 for Figure 3 The diagram shows the working relationship between the drive shaft and the detection component;

[0040] Figure 5 for Figure 2 The internal cross-sectional view of the treatment head shown is shown.

[0041] Figure 6 for Figure 3 The diagram shows the cooperation relationship between the drive shaft and the transmission assembly;

[0042] Figure 7 for Figure 3 The diagram shows the mating relationship between the support and the slide.

[0043] The meanings of the reference numerals in the attached figures are as follows:

[0044] 1. Power output mechanism; 11. Drive shaft; 12. Transmission assembly; 121. Transmission component; 122. Driven component; 122a. Intermediate connecting part; 122b. First limiting part; 122c. Second limiting part; 122d. Restricting component; 123. Support seat; 123a. Sliding guide rod; 123b. Limiting groove; 123c. First straight groove; 123d. Second straight groove; 123e. Clearance space; 124. Slide seat; 124a. Sliding mating hole; 124b. Bushing; 2. Detection assembly; 21. First component; 22. Second component; 23. Support plate; 24. Conductive part; 3. Housing; 31. Window; 4. Motion feedback assembly; 41. First feedback component; 42. Second feedback component; 10. Transducer. Detailed Implementation

[0045] 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.

[0046] like Figures 1-7As shown in the figure, this application provides an ultrasound therapy device, including a transducer 10, a control circuit (not shown in the figure) for controlling the output energy of the transducer 10, a power output mechanism 1, and a detection component 2; the power output mechanism 1 is driven to the transducer 10, and the power output mechanism 1 can drive the transducer 10 to reciprocate along a preset path; the detection component 2 has a first component 21 and a second component 22, the first component 21 is driven to the power output mechanism 1; the first component 21 can follow the movement of the transducer 10, or the first component 21 can be driven synchronously with the transducer 10, and the first component 21 performs periodic movements; the second component... 22 is positioned on the movement path of the first component 21; wherein, the first component 21 is driven to move to contact the second component 22 and its position is detected by the detection component 2, or the first component 21 is driven to move close to the second component 22 and its position is detected by the detection component 2; the detection component 2 feeds back the period of movement of the first component 21 and its current position to the control circuit, so that the control circuit can know the current position of the transducer 10 and control the energy output of the transducer 10 to ensure the uniformity of the energy output to the skin of the patient and avoid repeatedly outputting energy to the same position on the skin of the patient to avoid scalding the patient.

[0047] The detection component 2 can correct errors in the design and assembly of the mechanical structure that drives the transducer 10 to move, and avoid deviations in the starting and ending positions of the transducer 10, thereby ensuring the uniformity of energy output of the ultrasonic therapy device of this application, so as to ensure the cosmetic care effect.

[0048] The power output mechanism 1 includes a drive shaft 11 and a transmission assembly 12. The drive shaft 11 and the transmission assembly 12 are connected by transmission. The transmission assembly 12 is connected by transmission to the transducer 10. The drive shaft 11 can be driven to rotate, which drives the transmission assembly 12 to move, and then drives the transducer 10 to reciprocate on a preset path. The first component 21 is set on the drive shaft 11 and follows the drive shaft 11 to perform circular motion.

[0049] The transducer 10 is driven to perform periodic motion, and similarly, the first component 21 is driven to perform periodic motion. The first component 21 and the transducer 10 are driven to move synchronously, that is, the first component 21 and the transducer 10 are driven to move simultaneously at their respective starting positions. As the drive shaft 11 rotates continuously, the transmission component 12 continuously drives the transducer 10 to move. When the first component 21 moves to a certain position on its own trajectory, the position of the transducer 10 can be determined by combining the movement speed and movement period of the transducer 10 and the movement period of the first component 21. That is, the first component 21 can reflect the position of the transducer 10. Based on the position of the first component 21, the real-time position of the transducer 10 can be determined, and the control circuit can accurately control the energy output by the transducer 10 to achieve a better ultrasound therapy effect.

[0050] Furthermore, by setting the first component 21 on the drive shaft 11 and having it move in a circular motion following the drive shaft 11, it is easier to obtain the position of the first component 21. Secondly, it simplifies the structure by which the drive shaft 11 synchronously drives the transducer 10 and the first component 21. The structure for driving the first component 21 becomes simpler, resulting in smaller assembly errors and higher precision. Moreover, by setting the first component 21 on the drive shaft 11 and having the transducer 10 driven by the drive shaft 11 via the transmission assembly 12, the first component 21 and the transducer 10 are set separately, avoiding mutual interference between them. This ensures accurate position detection of the first component 21 and prevents the first component 21 from affecting the energy output of the transducer 10.

[0051] In some embodiments, the preset path is perpendicular to or parallel to the axis of the drive shaft 11.

[0052] In a preferred embodiment, the transmission assembly 12 includes a transmission member 121, a driven member 122, a support base 123, and a slide 124. The transmission member 121 is rotatably connected to the drive shaft 11, the driven member 122 is drivenly connected to the transmission member 121, and the connection position is offset from the rotation center of the transmission member 121. The slide 124 is drivenly connected to the driven member 122 at a position offset from the rotation center of the transmission member 121. The slide 124 is disposed on the support base 123, and the support base 123 allows the slide 124 to slide linearly. The transducer 10 is disposed on the slide 124.

[0053] The drive shaft 11 can be driven to rotate, which in turn drives the transmission component 121 to rotate, thereby driving the driven component 122 to rotate, and in turn driving the slide 124 to reciprocate linearly on the support base 123.

[0054] It should be noted that a motor can be used to drive the drive shaft 11 to rotate. The motor is a known structure in the prior art and is often used in ultrasonic therapy devices. Here, this application will not describe the motor, but it can be assumed that the drive shaft 11 is driven directly or indirectly by the motor to rotate.

[0055] The transducer 10 can slide linearly relative to the support 123 under the drive of the slide 124. A path is provided on the support 123, and the slide 124 is allowed to slide along the path. This path is parallel to the preset path of the transducer 10. Furthermore, at least two parallel paths are formed on the support 123 to ensure that the slide 124 will not deviate when sliding, and to ensure that the transducer 10 will not deviate when sliding linearly, thereby ensuring the accuracy of the ultrasonic energy it outputs.

[0056] The transducer 10 is indirectly driven by the drive shaft 11 to reciprocate linearly, so that the trajectory formed by the linear sliding of the slide block 124 intersects perpendicularly with the extension line of the axis of the drive shaft 11. The transducer 10 moves symmetrically on opposite sides of the radial direction of the drive shaft 11. This makes it convenient to set the housing 3 of the treatment head into a symmetrical shape, which will look beautiful. At the same time, the size of the housing 3 can be reduced to a minimum, which can reduce cost.

[0057] In some embodiments, a limiting groove 123b is provided on the support base 123, and the follower 122 is allowed to move within the limiting groove 123b and form active contact with the inner sidewall of the limiting groove 123b, so as to restrict the slide 124 to move according to a preset trajectory, avoid deviation of the movement of the follower 122, and cause inaccurate position of the transducer 10. This further ensures the accurate position of the transducer 10 and ensures the accurate landing point of the ultrasonic energy it outputs.

[0058] Specifically, the limiting groove 123b has a first straight groove 123c and a second straight groove 123d. The middle part of the first straight groove 123c and the middle part of the second straight groove 123d intersect to form a clearance space 123e. The driven member 122 has an intermediate connecting part 122a and a first limiting part 122b and a second limiting part 122c symmetrically arranged on both sides of the intermediate connecting part 122a. The intermediate connecting part 122a and the transmission member 121 are connected in a transmission manner within the clearance space 123e. The first limiting part 122b and the slide 124 are connected in a transmission manner within the first straight groove 123c, and the second limiting part 122c and the inner wall of the second straight groove 123d form a movable contact, thereby restricting the second limiting part 122c to move along the inner wall of the second straight groove 123d and according to a preset trajectory; and a limiting member 122d is movably provided on the second limiting part 122c, and the limiting member 122d and the inner wall of the second straight groove 123d form a rolling or sliding contact.

[0059] In some embodiments, a sliding guide rod 123a is provided on the support base 123, and a sliding mating hole 124a is provided on the slide base 124. A bushing 124b is provided inside the sliding mating hole 124a. The bushing 124b is fitted around the outer periphery of the sliding guide rod 123a to ensure that the transducer 10 moves in a straight line without fluctuation, thus ensuring the accuracy of ultrasound treatment.

[0060] To ensure a precise fit between the bushing 124b and the sliding fit hole 124a, the outer periphery of the bushing 124b and the inner sidewall of the sliding fit hole 124a form an interference fit in the radial direction of the sliding guide hole, and / or, both ends of the bushing 124b form protrusions (not shown in the attached figure), and the protrusions and the side edges at both ends of the sliding fit hole 124a form an interference fit in the axial direction of the sliding fit hole 124a.

[0061] Preferably, the movement cycle of the first component 21 can be the same as the movement cycle of the transducer 10. The position where the first component 21 and a second component 22 come into contact can be used as the starting position for driving the first component 21 to move. At this time, the position of the transducer 10 on the preset path is the starting position of its movement, that is to say, the transducer 10 can be detected at the starting position of its movement. Furthermore, a second component 22 is also set at the halfway point of the movement path of the first component 21. After the first component 21 rotates with the active shaft 11 for half a cycle, it can come into contact with another second component 22. At this time, the transducer 10 reaches the end position on its preset path. After passing the end position, the transducer 10 moves back. Generally, when the transducer 10 is at the starting position and the end position, the transducer 10 deviates from the ultrasonic energy output window 31 on the treatment head shell 3. The control circuit can control the transducer 10 not to output energy to avoid energy waste.

[0062] In some embodiments, the detection component 2 may include a plurality of first components 21, which are evenly spaced and distributed around the transducer 10. By setting a plurality of first components 21, the position of the transducer 10 can be acquired multiple times when the transducer 10 moves. The control circuit can more accurately control the output of ultrasonic energy from the transducer 10, making ultrasonic therapy more precise.

[0063] As a preferred embodiment, the first component 21 can be uniformly arranged around the outer periphery of the drive shaft 11.

[0064] The period T1 of the reciprocating motion of the transducer 10 is a positive integer multiple of the period T2 of the circular motion of the first component 21. The period T1 of the reciprocating motion of the transducer 10 is equal to the period T2 of the circular motion of the first component 21, or the period T1 of the reciprocating motion of the transducer 10 is twice or more than the period T2 of the circular motion of the first component 21. A reduction ratio exists between the drive shaft 11 and the slide 124. 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 11 and the slide 124. In the case of a gear reduction transmission structure, a gear can be installed between the drive end of the drive shaft 11 and the transmission component 121 for transmission. The motion cycle of the drive shaft 11 is the motion cycle of the first component 21, and the motion cycle of the transmission component 121 is the motion cycle of the transducer 10. The reduction ratio of the gears transmitting between the drive shaft 11 and the transmission component 121 is the ratio of the motion cycle T1 of the transducer 10 to the motion cycle T2 of the first component 21. A synchronous belt reduction transmission structure can be installed between the drive shaft 11 and the slide 124. Common installation methods in the prior art can be referenced, and their technical details will not be described in detail here.

[0065] When the central angle of the first component 21 in circular motion is 0°, the transducer 10 is at its starting position on its motion path.

[0066] If the cycle of transducer 10 is twice the cycle of the first component 21, then for every cycle the transducer 10 completes, the first component 21 completes two cycles. The transducer 10 can be detected twice within one cycle. Furthermore, when the first component 21 and the second component 22 come into contact, the position of the first component 21 is taken as the 0° central angle of its circular motion. Therefore, when the cycle of transducer 10 is twice the cycle of the first component 21, the transducer 10 is detected at the starting and ending positions of its single-stroke motion. At these starting and ending positions, the transducer 10 deviates from the ultrasonic energy output window 31 of the treatment head. At this point, the control circuit can control... Transducer 10 does not output energy to avoid energy waste; for example, the cycle of transducer 10 is four times the cycle of the first component 21. Thus, for every cycle of transducer 10, the first component 21 moves for four cycles. Transducer 10 can be detected four times within one cycle of its movement. These four positions can be the starting position, the ending position, and the intermediate position between the starting and ending positions of transducer 10. This is equivalent to dividing the one-way journey of the preset path of transducer 10 into multiple segments. The position of transducer 10 is detected at the connection of each segment. The control circuit can know which segment of the journey transducer 10 has moved to within one cycle, and control the energy output of transducer 10 accordingly.

[0067] In some embodiments, the detection component 2 includes a tactile switch and a triggering component, the triggering component having a triggering protrusion formed thereon; the tactile switch is configured as a first component 21 and the triggering component is configured as a second component 22, or the tactile switch is configured as a second component 22 and the triggering component is configured as a first component 21; the first component 21 is driven to move and can contact the second component 22 to generate a trigger; the tactile switch is electrically connected to the control circuit, and the control circuit can directly know that the tactile switch is triggered, thereby knowing the position of the transducer 10.

[0068] Specifically, the detection component 2 also includes a support plate 23, which is disposed on the outer periphery of the active shaft 11 and does not rotate with the active shaft 11. The support plate 23 is an FPC circuit board that integrates two or more tactile switches. The tactile switches are symmetrical about the active shaft 11. The ribbon cable on the support plate 23 forms a conductive part 24, which is electrically connected to the tactile switch. The other end of the conductive part 24 is electrically connected to the circuit on the treatment head housing 3. Thus, the tactile switch and the control circuit are electrically connected. The triggering component is disposed on the active shaft 11 and moves with the active shaft 11, 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 10.

[0069] When the transducer 10 moves along a preset path, its starting and ending positions are generally offset from the ultrasonic energy output window 31 of the treatment head housing 3. If the transducer 10 emits energy at this time, it will be blocked by the wall at the edge of the window 31, resulting in waste. To address this, this application can set two tactile switches on the support plate 23. The two tactile switches are symmetrical about the axis of the active shaft 11, and the movement cycle of the triggering component is the same as the movement cycle of the transducer 10. The contact angle between one of the tactile switches and the triggering component is the 0° angle of the rotation of the triggering component, that is, the 0° angle of the rotation of the active shaft 11. At this time, the position of the transducer 10 is the starting position of the transducer 10's movement. In this way, the tactile switches can be triggered at the starting and ending positions of the transducer 10's movement, respectively, so that the control circuit can control the transducer 10 to stop working.

[0070] In other embodiments, the detection component 2 includes a photoelectric sensor (not shown in the figures) and a light-shielding member (not shown in the figures). The photoelectric sensor has a transmitting end and a receiving end, and a light-conducting region is formed between the transmitting end and the receiving end. The light-shielding member is configured as a first component 21, and the photoelectric sensor is configured as a second component 22, or the light-shielding member is configured as a second component 22, and the photoelectric sensor is configured as a first component 21. The first component 21 is driven to move close to the second component, and the light in the light-conducting region is blocked. The detection component 2 can feed back the position of the first component 21 to the control circuit based on the blocking of light.

[0071] As a preferred approach, photoelectric sensors include optical couplers and laser beam sensors.

[0072] In this preferred embodiment, the first component 21 can be a sheet-like structure that blocks the light emitted by the photoelectric sensor, preventing the receiving end of the photoelectric sensor from receiving the light. That is, the position of the first component 21 is detected, and correspondingly, the position of the transducer 10 is obtained. The optocoupler sensor can be a laser diode or a common diode as the light source.

[0073] The ultrasonic therapy device of this application includes a housing 3, a transducer 10 movably disposed inside the housing 3, a detection component 2 disposed outside the housing 3, a part of a power output mechanism 1 disposed inside the housing 3 and drivenly connected to the transducer 10, and another part of the power output mechanism 1 disposed outside the housing 3 and drivenly connected to the first component 21.

[0074] Specifically, the power output mechanism 1 includes a drive shaft 11 and a transmission assembly 12. The transmission assembly 12 is disposed inside the housing 3 and is connected to the transducer 10. One end of the drive shaft 11 extends into the housing 3 and is connected to the transmission assembly 12. The detection assembly 2 is disposed on the other end of the drive shaft 11 located outside the housing 3. The housing 3 is filled with a sound-conducting medium for conducting ultrasonic waves generated by the vibration of the transducer 10 and for cooling the transducer 10. The housing 3 and the drive shaft 11 form a movable seal at the connection position. The detection assembly 2 is disposed outside the housing 3 to avoid interference from the sound-conducting medium. If the detection assembly 2 is disposed inside the housing 3, such as in a photoelectric sensor, the sound-conducting medium and the air bubbles inside it will cause the light emitted by the photoelectric sensor to be refracted and cannot be received by its receiving end, such as in a tactile switch, where the sound-conducting medium can easily corrode its circuit.

[0075] In some embodiments, the ultrasound therapy device of this application further includes a motion feedback component 4 for providing feedback on the constant motion of the transducer 10. The motion feedback component 4 includes a first feedback component 41 and a second feedback component 42. The first feedback component 41 can move with the transducer 10 and the second feedback component 42 can change position. The second feedback component 42 can provide feedback on the position of the first feedback component 41 to the control circuit, that is, provide feedback to the control circuit that the transducer 10 is currently in motion, so as to control the transducer 10 to output energy.

[0076] The detection component 2 can detect the position of the transducer 10 on its preset path. Between these positions, the transducer 10 can also be detected by the motion feedback component 4 to be in motion, indicating that the transducer 10 is in working state. At this time, the control circuit can control the transducer 10 to output energy accordingly. The detection component 2 and the motion feedback component 4 double confirm that the transducer 10 is in motion, ensuring that the transducer 10 will not repeatedly output energy at the same position, and will not cause burns to the person being treated.

[0077] Specifically, the second feedback component 42 is disposed at the beginning, middle or end of the movement path of the first feedback component 41.

[0078] In a preferred embodiment, the motion feedback component 4 includes a Hall element and a magnetic component, wherein the Hall element is configured as a first feedback component 41 and the magnetic component is configured as a second feedback component 42, or the Hall element is configured as a second feedback component 42 and the magnetic component is configured as a first feedback component 41.

[0079] When the transducer 10 moves along a 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 10 is in motion.

Claims

1. An ultrasound therapy device, comprising a transducer and a control circuit for controlling the output energy of the transducer; Its features are, Also includes: A power output mechanism is connected to the transducer and causes the transducer to reciprocate along a preset path; as well as The detection assembly has a first component and a second component; The first component and the power output mechanism are connected by a transmission. The first component can move with the transducer, or the first component can be driven synchronously with the transducer, and the first component can perform periodic movements; The second component is positioned on the movement path of the first component; Wherein, the first component is driven to move to contact the second component, or the first component is driven to move to approach the second component; Thus, the position of the first component is detected by the detection component, the detection component feeds back the position of the first component to the control circuit, and the control circuit controls the energy output of the transducer.

2. The ultrasonic therapy device according to claim 1, characterized in that, The power output mechanism includes a drive shaft and a transmission assembly. The drive shaft and the transmission assembly are connected in a transmission manner, and the transmission assembly is connected in a transmission manner to the transducer. The drive shaft can be driven to rotate, which in turn drives the transmission assembly to move, thereby driving the transducer to reciprocate along a preset path. The first component is disposed on the drive shaft and follows the drive shaft to perform a circular motion.

3. The ultrasonic therapy device according to claim 2, characterized in that, The preset path is perpendicular or parallel to the axis of the drive shaft.

4. The ultrasonic therapy device according to claim 2, characterized in that, The detection component includes a plurality of the first components, which are evenly spaced and distributed around each other.

5. The ultrasonic therapy device according to claim 1, characterized in that, The period T1 of the reciprocating motion of the transducer is a positive integer multiple of the period T2 of the circular motion of the first component; Wherein, when the central angle of the first component's circular motion is 0°, the transducer is at its starting position on its motion path.

6. The ultrasonic therapy device according to claim 1, characterized in that, The detection component includes a tactile switch and a triggering component, wherein a triggering protrusion is formed on the triggering component; The tactile switch is configured as the first component, and the triggering component is configured as the second component; or, the tactile switch is configured as the second component, and the triggering component is configured as the first component. The first component is driven to move and contact the second component, so that the position of the first component is detected; or, The detection component includes a photoelectric sensor and a light-shielding element. The photoelectric sensor has a transmitting end and a receiving end, and a light-conducting region is formed between the transmitting end and the receiving end of the photoelectric sensor. The light-shielding element is configured as the first component, and the photoelectric sensor is configured as the second component; or, the light-shielding element is configured as the second component, and the photoelectric sensor is configured as the first component. The first component is driven to move closer to the second component so that the light in the light transmission area is blocked, and the detection component can respond to the control circuit with the position of the first component based on the blocking of the light.

7. The ultrasonic therapy device according to claim 1, characterized in that, The ultrasound therapy device includes a housing, a transducer disposed inside the housing, a detection component disposed outside the housing, a portion of a power output mechanism disposed inside the housing and drivenly connected to the transducer, and another portion of the power output mechanism disposed outside the housing and drivenly connected to the first component.

8. The ultrasonic therapy device according to claim 1, characterized in that, The ultrasound therapy device also includes a motion feedback component, which includes a first feedback component and a second feedback component. The first feedback component can move with the transducer and change position with the second feedback component. The second feedback component can provide feedback on the position of the first feedback component to the control circuit.

9. The ultrasonic therapy device according to claim 8, characterized in that, The second feedback component is located at the beginning, middle or end of the movement path of the first feedback component.

10. The ultrasonic therapy device according to claim 8, characterized in that, The motion feedback component includes a Hall element and a magnetic component; Wherein, the Hall element is configured as the first feedback component, and the magnetic component is configured as the second feedback component; Alternatively, the Hall element may be configured as the second feedback component, and the magnetic component may be configured as the first feedback component.

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