Ultrasonic therapeutic apparatus and its treatment head

Abstract

The utility model discloses an ultrasonic therapeutic instrument and treatment head thereof, and the treatment head comprises: a support, a rotating part, the rotating part is rotatably connected with the support, and an external driving mechanism can drive the rotating part to rotate along a first direction, a translation part, the translation part is slidably connected with the support, and the translation part is suitable for moving along a second direction, an abutting part, the abutting part is slidably connected with the translation part, the abutting part is suitable for moving along a third direction relative to the translation part, the first end of the abutting part is connected with a transducer, the second end of the abutting part elastically abuts the rotating part, and along with the rotating part rotating, the distance between the second end of the abutting part and the rotating shaft center of the rotating part changes. The treatment head provided by the scheme is composed of the motion adjusting mechanism of the transducer by the support, the rotating part, the translation part and the abutting part, the distance between the transducer and the rotating shaft center of the rotating part can be changed by the cooperation of the rotating part, the translation part and the abutting part, the treatment depth of the transducer can be adjusted, and the motion adjusting mechanism is simple and low in cost.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an ultrasonic therapy device and its treatment head. Background Technology

[0002] In ultrasonic therapy heads, to ensure that the ultrasonic energy output by the transducer acts at different depths in the tissue to be treated, a corresponding transducer motion adjustment mechanism is usually set up to adjust the treatment depth and thus meet different treatment needs. Currently, the motion adjustment mechanisms used for transducers are complex and costly; in addition, the treatment depth adjusted by the existing motion adjustment mechanism has a sinusoidal relationship with the axial movement distance, and precise point selection requires the use of software algorithms when achieving different depths, resulting in poor tolerance. Utility Model Content

[0003] In view of this, the present invention provides a treatment head with a simple and low-cost motion adjustment mechanism.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A treatment head, comprising:

[0006] Support;

[0007] A rotating component, which is rotatably connected to the support, and an external driving mechanism can drive the rotating component to rotate in a first direction;

[0008] A translational component, which is slidably connected to the support, and is adapted to move along a second direction;

[0009] The abutment is slidably connected to the translation member and is adapted to move relative to the translation member in a third direction. A transducer is connected to the first end of the abutment, and the second end of the abutment elastically abuts against the rotating member. As the rotating member rotates, the distance between the second end of the abutment and the rotation axis of the rotating member changes accordingly.

[0010] Preferably, the rotating component passes through the translating component, and the two are connected by a threaded connection. The translating component can move along the second direction as the rotating component rotates, and the second direction is the axial direction of the rotating component. The support is also used to prevent the translating component from rotating with the rotating component.

[0011] The rotating component is also provided with a plurality of first eccentric structures along the circumferential direction. The radii of the plurality of first eccentric structures to the rotation axis of the rotating component are different. As the rotating component rotates, the abutting component not only moves with the translation component, but the second end of the abutting component also elastically abuts against the plurality of first eccentric structures of the rotating component in sequence, so that the abutting component moves relative to the translation component in a third direction, which is perpendicular to the axial direction of the rotating component.

[0012] Preferably, the translation component has a through internal threaded hole;

[0013] A portion of the circumferential region of the rotating component is provided with external threads for engaging with the internal threaded hole, and the remaining region is distributed with multiple first eccentric structures; wherein, the radius of the external thread from the rotation axis of the rotating component is larger than the radius of the multiple first eccentric structures from the rotation axis of the rotating component.

[0014] As the rotating component rotates, the second end of the abutting component also elastically abuts against the first eccentric structure and the external thread of the rotating component in sequence.

[0015] Preferably, the plurality of first eccentric structures each include a first eccentric arc surface, and the radii of different first eccentric arc surfaces to the rotation axis of the rotating component are different; wherein, a single first eccentric arc surface has a preset curvature and the radius to the rotation axis of the rotating component is the same; or, a single first eccentric arc surface has a preset curvature and the radius to the rotation axis of the rotating component gradually becomes different.

[0016] The first eccentric arc surface adjacent to the rotating part has a smooth transition with the external thread.

[0017] Preferably, the rotating component includes a screw;

[0018] The translation component includes a first translation nut.

[0019] Preferably, the support is provided with an anti-rotation assembly, which includes two first anti-rotation elements;

[0020] Two first anti-rotation members are arranged in parallel on the support and pass through both sides of the first translation member. Both first anti-rotation members are parallel to the axis of the rotation member.

[0021] The two sides of the first translation member can slide along the two first anti-rotation members one by one.

[0022] Preferably, the rotating component has a second eccentric structure, which is spirally distributed;

[0023] The abutting member can drive the translation member to move along the second direction, which is the axial direction of the rotating member;

[0024] As the rotating member rotates, the second end of the abutting member elastically abuts against the second eccentric structure of the rotating member, causing the abutting member to move relative to the translation member along a third direction, which is perpendicular to the axial direction of the rotating member.

[0025] Preferably, the second eccentric structure includes: an eccentric groove formed in the rotating component, the bottom of the eccentric groove having a plurality of second eccentric arc surfaces along the circumferential direction, the radii of different second eccentric arc surfaces to the rotation axis of the rotating component being different, wherein, a single second eccentric arc surface has the same radius to the rotation axis of the rotating component; or, the radii of a single second eccentric arc surface to the rotation axis of the rotating component gradually become different;

[0026] The bottom of the eccentric groove has a smooth transition between two adjacent second eccentric arc surfaces;

[0027] As the rotating component rotates, the second end of the abutting component elastically abuts against a plurality of second eccentric arc surfaces of the eccentric groove of the rotating component in sequence.

[0028] Preferably, the rotating component includes a lead screw;

[0029] The spiral groove of the lead screw serves as the eccentric groove.

[0030] Preferably, the abutting member is slidably disposed on the translational member via an abutting member fixing seat;

[0031] The abutment fixing seat is provided with an elastic element, which provides elastic force to the abutment so that the second end of the abutment elastically abuts against the rotating part.

[0032] Preferably, the abutment fixing seat is disposed on the translation member;

[0033] The abutting member slides through the abutting member fixing seat and the translation member in sequence. The first end of the abutting member is located outside the abutting member fixing seat and is connected to the transducer. The second end of the abutting member passes through the translation member and elastically abuts against the rotating member.

[0034] The elastic element is sleeved on the outside of the middle portion of the abutment and provides the elastic force to the second end of the abutment.

[0035] Preferably, the abutment fixing seat has a first through groove, the translation member has a second through groove, one end of the second through groove is connected to the first through groove, and the other end is connected to the rotating member;

[0036] The middle portion of the abutment is slidably disposed within the first through groove and the second through groove, and the second end of the abutment has an abutment end face, the abutment end face of the second end of the abutment being close to the middle portion of the abutment.

[0037] The elastic element is located in the first through groove and the second through groove, with one end abutting against the first through groove and the other end abutting against the abutting end face of the second end of the abutting element.

[0038] An ultrasonic therapy device includes a treatment head, said treatment head being the treatment head described above.

[0039] As can be seen from the above technical solution, the treatment head provided by this utility model consists of a support, a rotating component, a translating component, and an abutting component, which constitute the motion adjustment mechanism of the transducer. Through the coordinated use of the rotating component, the translating component, and the abutting component, the distance from the transducer to the rotation axis of the rotating component can be changed accordingly, thereby realizing the adjustment of the treatment depth of the transducer. Moreover, the motion adjustment mechanism has a simple structure and low cost. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 A structural cross-sectional view of the first motion adjustment mechanism of the treatment head provided in an embodiment of this utility model;

[0042] Figure 2 A partial structural schematic diagram of the first motion adjustment mechanism of the treatment head provided in an embodiment of this utility model;

[0043] Figure 3 A front view of the screw structure of the treatment head provided in an embodiment of this utility model;

[0044] Figure 4 A cross-sectional view of the screw of the treatment head provided in an embodiment of this utility model;

[0045] Figure 5 A schematic diagram of the structure of the first motion adjustment mechanism of the treatment head provided in this embodiment of the utility model;

[0046] Figure 6 A partial structural schematic diagram of the first motion adjustment mechanism of the treatment head provided in an embodiment of this utility model;

[0047] Figure 7A schematic diagram of the structure of the second motion adjustment mechanism of the treatment head provided in this embodiment of the utility model;

[0048] Figure 8 An exploded view of the structure of the second motion adjustment mechanism of the treatment head provided in an embodiment of this utility model;

[0049] Figure 9 A partial structural schematic diagram of the second motion adjustment mechanism of the treatment head provided in an embodiment of this utility model;

[0050] Figure 10 A schematic diagram of the lead screw of the second motion adjustment mechanism provided in this embodiment of the utility model.

[0051] Wherein, 1 is the support, 2 is the screw, 3 is the first anti-rotation pin, 4 is the first spring, 5 is the first ejector pin fixing shell, 6 is the drive wheel, 7 is the first translation nut, 8 is the first ejector pin, 9 is the transducer bracket, 10 is the transducer, 11 is the eccentric cam, 12 is the first eccentric arc surface, 13 is the lead screw, 14 is the eccentric groove, 15 is the first through groove, 16 is the second through groove, 17 is the external thread, 18 is the second eccentric arc surface, 19 is the internal thread hole, 20 is the second ejector pin, 21 is the second translation nut, 22 is the second spring, 23 is the second anti-rotation pin, 24 is the second ejector pin fixing shell, 25 is the first screw, and 26 is the abutment end face. Detailed Implementation

[0052] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0053] The treatment head provided in this embodiment of the utility model, such as Figure 1 or Figure 7 As shown, it includes:

[0054] Support 1;

[0055] The rotating component is rotatably connected to the support 1, and an external drive mechanism can drive the rotating component to rotate in a first direction;

[0056] The translation component is slidably connected to the support 1, and the translation component is adapted to move along the second direction;

[0057] The abutting member is slidably connected to the translation member. The abutting member is adapted to move relative to the translation member in a third direction. A transducer 10 is connected to the first end of the abutting member. The second end of the abutting member elastically abuts against the rotating member. As the rotating member rotates, the distance between the second end of the abutting member and the rotation axis of the rotating member changes accordingly.

[0058] It should be noted that, as Figure 1 or Figure 7 As shown, the rotating component is rotatably mounted on the support 1 in a first direction and is driven to rotate by an external drive mechanism; wherein, the transmission component of the external drive mechanism can be a drive wheel 6 mounted on the support 1, the drive wheel 6 is connected to one end of the rotating component, and the main body of the external drive mechanism can be mounted on the handle of the treatment head.

[0059] The translation component can be slidably mounted on the support 1 along a second direction; wherein, the second direction can be the axial direction of the rotation component, such as... Figure 1 More specifically, the direction of the horizontal double arrow indicates that the translation component can be fitted onto the rotating component and can slide along the axis of the rotating component as the rotating component rotates.

[0060] The abutment member can be disposed on the translating member and can slide relative to the translating member along a third direction; wherein, the third direction can be the radial direction of the rotating member, or perpendicular to the axial direction of the rotating member, such as... Figure 1 The direction of the vertical double arrow is such that the second direction is coplanar with the third direction; that is, in addition to following the translational movement of the translational part along the second direction, the abutting part can also slide radially relative to the translational part along the rotating part; furthermore, the rotating part may have an eccentric structure, and the distance from the eccentric structure to the rotation axis of the rotating part varies, such as... Figure 1 or Figure 7 As shown, the first end (end) of the abutment is connected to the transducer 10, and an elastic member can be provided at the second end of the abutment so that the second end of the abutment elastically abuts against the eccentric structure of the rotating member. In this way, as the rotating member rotates, the abutment slides radially relative to the translation member along the rotating member, so that the distance from the second end of the abutment to the rotation axis of the rotating member changes accordingly, thereby changing the distance from the transducer 10 to the rotation axis of the rotating member, thereby realizing the movement of adjusting the treatment depth of the transducer 10.

[0061] The distance from the second end of the abutment to the rotation axis of the rotating component can be maintained for a period of time before being changed (with a delay). This allows the transducer 10 to remain at the same height for a period of time, which helps to solve the problem of poor accuracy of the motion adjustment mechanism at different depths. In other words, the movement of the transducer 10 along the radial direction of the rotating component is intermittent, which provides sufficient reaction time for the transducer 10 to make dots at different depths. Of course, the distance from the second end of the abutment to the rotation axis of the rotating component can also be changed directly. At the same time, the above-mentioned components can serve as the motion adjustment mechanism of the transducer 10.

[0062] In other words, the treatment head provided by this solution consists of a support 1, a rotating component, a translating component, and an abutting component, which constitute the motion adjustment mechanism of the transducer 10. Through the coordinated use of the rotating component, the translating component, and the abutting component, the distance between the transducer 10 and the rotation axis of the rotating component can be changed accordingly, thereby realizing the adjustment of the treatment depth of the transducer 10. Moreover, this motion adjustment mechanism is simple and low in cost.

[0063] In the first embodiment of this solution, as Figure 2 As shown, the rotating component passes through the translating component, and the two are connected by a thread. The translating component can move along the second direction as the rotating component rotates, and the second direction is the axial direction of the rotating component. The support 1 is also used to prevent the translating component from rotating with the rotating component, that is, to prevent the translating component from rotating with the rotating component, and to ensure that the translating component can move along the second direction as the rotating component rotates.

[0064] The rotating component is also provided with multiple first eccentric structures along the circumferential direction. The radii of the multiple first eccentric structures to the rotation axis of the rotating component are different. As the rotating component rotates, the abutting component not only moves with the translation component, but the second end of the abutting component also elastically abuts against the multiple first eccentric structures of the rotating component in sequence, so that the abutting component moves relative to the translation component along a third direction, which is perpendicular to the axis of the rotating component.

[0065] It should be noted that, as Figure 2 As shown, the rotating component passes through the translating component, and the two are connected by internal and external threads. In this way, as the rotating component rotates, the translating component can slide along the axial direction of the rotating component, that is, the rotational motion of the rotating component is converted into the translational motion of the translating component. In addition, the support 1 may be provided with an anti-rotation component to prevent the translating component from rotating with the rotating component, and the translating component can slide along the anti-rotation component. The anti-rotation component is described below.

[0066] The outer periphery of the rotating component is also provided with multiple first eccentric structures along the circumferential direction. The distances of the multiple first eccentric structures from the rotation axis of the rotating component are different. As the rotating component rotates, the abutting member not only slides along the axial direction of the rotating component with the translation member, but the second end of the abutting member also elastically abuts against the multiple first eccentric structures of the rotating component in sequence, so that the abutting member slides radially relative to the translation member. This causes the transducer 10 to move not only along the axial direction of the rotating component, but also to move back and forth along the radial direction of the rotating component, thereby realizing the function of the transducer 10. 0. The rotating component moves linearly along its axial direction and adjusts the treatment depth radially. In addition, each first eccentric structure can have a certain curvature, that is, the outer surface of each first eccentric knot is an arc surface with a certain curvature (i.e., the first eccentric arc surface mentioned below), and the distance from the arc surface to the axis of the rotating component is the same. In this way, when the second end of the abutment elastically abuts against the first eccentric structure of the rotating component, it can maintain this position for a short period of time, which helps to solve the problem of poor accuracy of the motion adjustment mechanism in adjusting different depths.

[0067] In other words, the rotating component passes through the translating component, and the two are engaged by a threaded pair, which allows the rotation of the rotating component to drive the translating component to slide along the axial direction of the rotating component. Moreover, the outer circumference of the rotating component is provided with multiple first eccentric structures of different radii. During the rotation of the rotating component, the abutting component not only slides along the axial direction of the rotating component with the translating component, but also, based on the second end of the abutting component elastically abutting against the multiple first eccentric structures of the rotating component in sequence, the abutting component also slides back and forth along the radial direction of the rotating component relative to the translating component. This allows the treatment depth of the transducer 10 to be adjusted. This method of adjusting the treatment depth is simple and convenient.

[0068] Furthermore, such as Figure 2 As shown, the translation component has a through internal threaded hole 19;

[0069] A portion of the circumferential region of the rotating part is provided with an external thread 17 for mating with the internal thread hole 19, and the remaining region is provided with multiple first eccentric structures; wherein, the radius of the external thread 17 to the rotation axis of the rotating part is larger than the radius of the multiple first eccentric structures to the rotation axis of the rotating part.

[0070] As the rotating part rotates, the second end of the abutting part also elastically abuts against the first eccentric structure and the external thread 17 of the rotating part in sequence.

[0071] It should be noted that, as Figure 2As shown, the translating component has internally threaded holes 19 extending through both ends; a portion of the circumferential region of the rotating component has external threads 17 for engaging with the internally threaded holes 19 of the translating component, while the remaining region has multiple first eccentric structures; wherein, the external threads 17 can be distributed along the axial direction of the rotating component, and their radii to the rotation axis of the rotating component are all larger than the radii of the multiple first eccentric structures to the rotation axis of the rotating component, ensuring that the external threads 17 of the translating component can contact the internally threaded holes 19 of the translating component and form a threaded engagement; of course, although only a portion of the circumferential region of the rotating component has external threads 17, since the rotating component can rotate around the first direction The rotating component is mounted on the support 1, and the translational component can slide along the two first anti-rotation pins 3 (as will be explained below). That is, the relative distance between the rotating component and the translational component is fixed. Therefore, when the translational component moves as the rotating component rotates, no radial swaying occurs. Furthermore, as the rotating component rotates, the abutment component, in addition to moving axially along the rotating component along with the translational component, also elastically abuts against multiple first eccentric structures and the external thread 17 of the rotating component at its second end. This allows the abutment component to also move radially relative to the translational component along the rotating component, thereby adjusting the treatment depth of the transducer 10. Of course, the external thread 17 can also serve as an eccentric structure of the rotating component, and as... Figure 2 As shown, the number of external threads 17 can be multiple (such as two external threads 17), and they are alternately distributed along the circumference of the rotating part with multiple first eccentric structures (such as two first eccentric structures). The second end of the abutment member also alternately and elastically abuts against multiple first eccentric structures and multiple external threads 17 of the rotating part in order to realize continuous adjustment of the treatment depth of the transducer 10. Of course, both the external threads 17 and the first eccentric structures can have a certain curvature, which helps to ensure that the adjustment of the treatment depth of the transducer 10 has a time delay.

[0072] Furthermore, such as Figure 4 As shown, the plurality of first eccentric structures each include a first eccentric arc surface 12, and the radii of the plurality of first eccentric arc surfaces 12 to the rotation axis of the rotating component are not the same, that is, the radii of different first eccentric arc surfaces 12 to the rotation axis of the rotating component are not the same; wherein, a single first eccentric arc surface 12 has a preset curvature and the radius to the rotation axis of the rotating component is the same; or, a single first eccentric arc surface 12 has a preset curvature and the radius to the rotation axis of the rotating component gradually becomes different;

[0073] The first eccentric arc surface 12 adjacent to the rotating part has a smooth transition with the external thread 17. For example, Figure 2 As shown, the distances from the multiple first eccentric arc surfaces 12 to the rotation axis of the rotating component are not the same, that is, the distances from different first eccentric arc surfaces 12 to the rotation axis of the rotating component are not the same, and the multiple first eccentric arc surfaces 12 are concentric and can all be eccentric convex surfaces (which are also equivalent to eccentric cams 11 (such as...)). Figure 3 As shown), this facilitates the elastic contact between the second end of the abutment and the first eccentric structure; as Figure 4As shown, the rotating component has a smooth transition between the adjacent first eccentric arc surface 12 and the external thread 17, avoiding large jumps in the radial movement of the abutment component along the rotating component, and ensuring that the transducer 10 can smoothly adjust the treatment depth; in addition, as Figure 4 As shown, each first eccentric arc surface 12 has a certain curvature (preset curvature) and the same radius to the rotation axis of the rotating component. This allows the treatment depth to remain constant when the second end of the abutting component elastically abuts against the same first eccentric arc surface 12, thus achieving delayed adjustment of the treatment depth. Alternatively, each first eccentric arc surface 12 may have a certain curvature (preset curvature) and the radius to the rotation axis of the rotating component may gradually change, such as gradually increasing or decreasing. This allows for continuous adjustment of the treatment depth when the second end of the abutting component elastically abuts against the same first eccentric arc surface 12. However, this would prevent the treatment depth from remaining constant for a certain period. Therefore, the adjustment of the transducer's treatment depth can be delayed or continuous. Furthermore, as... Figure 4 As shown, the number of the first eccentric arc surface 12 and the external thread 17 can both be two.

[0074] As a preferred option, such as Figure 2 and Figure 5 As shown, the rotating component includes a screw 2;

[0075] The translation component includes the first translation nut 7.

[0076] Specifically, the support 1 is provided with an anti-rotation component, and both first anti-rotation components may include a first anti-rotation pin 3, i.e. Figure 1 and Figure 2 As shown, the anti-rotation assembly includes two first anti-rotation pins 3;

[0077] Two first anti-rotation pins 3 are arranged in parallel on the support 1 and are inserted through both sides of the first translation nut 7. Both first anti-rotation pins 3 are parallel to the axis of the screw 2.

[0078] The two sides of the first translation nut 7 can slide along the two first anti-rotation pins 3 one by one.

[0079] Among them, such as Figure 1 As shown, the screw 2 is rotatably disposed between the two side supports of the support 1 in a first direction. The drive wheel 6 is disposed on the outer side wall of one side support of the support 1 and is connected to one end of the screw 2 for transmission. Two first anti-rotation pins 3 are disposed in parallel between the two side supports of the support 1 and pass through both sides of the first translation nut 7. The two sides of the first translation nut 7 can slide along the two first anti-rotation pins 3. Of course, the first anti-rotation pins 3 are parallel to the axial direction of the screw 2. Figure 2As shown, the first translation nut 7 can be provided with first lugs on both sides, and the two first anti-rotation pins 3 can pass through the two first lugs of the first translation nut 7 one by one. The two first lugs of the first translation nut 7 can slide along the two first anti-rotation pins 3 one by one. In this way, when the screw 2 rotates, the first translation nut 7 cannot rotate with the screw 2 due to the limitation of the first anti-rotation pins 3 on both sides. That is to say, in the first embodiment of this solution, the linear motion of the transducer 10 can be realized by the internal and external thread engagement between the screw 2 and the first translation nut 7, and the adjustment of the treatment depth of the transducer 10 can be realized by the elastic contact of the second end of the abutment member with the first eccentric structure of the screw 2. Moreover, this method of adjusting the treatment depth is simple in structure and convenient to adjust. Figure 1 As shown, the abutment can be the first ejector pin 8.

[0080] In other words, in the first embodiment of this solution, several coaxial curved surfaces (i.e., the first eccentric arc surface 12) with different radii are provided on the screw 2, the coaxial curved surfaces transition smoothly between each other, and the curved surfaces with different radii have a certain curvature (e.g., Figure 4 As shown, when the screw 2 rotates, the first ejector pin 8 on the first nut slider (i.e., the first translation nut 7) slides up and down depending on the radius of the curved surface. At the same time, the entire nut slider slides left and right with the rotation of the screw 2, causing the transducer 10 to move linearly left and right while also moving up and down. When the first ejector pin 8 contacts the same curved surface, the ejection height of the first ejector pin 8 is the same, and the transducer 10 can maintain the same height for a short period of time, thus helping to solve the problem of different depth accuracy. Of course, this solution achieves the adjustment of treatment depth through the cooperation of the cam screw and the ejector pin, which is simple in structure and low in cost.

[0081] The first motion adjustment mechanism of this scheme comprises a fixed base (i.e., support 1), a screw 2, a first anti-rotation pin 3, a first spring 4, a driving wheel 6, a nut slider, a first ejector pin 8, and a transducer bracket 9. The nut slider has an internal threaded hole 19 that mates with the external thread 17 of the screw 2. The first anti-rotation pin 3 prevents the nut slider from rotating with the screw 2, thus allowing the nut slider to move along the axial direction of the screw 2 when the screw 2 rotates. Both ends of the screw 2 are fixed to the fixed base, and the driving wheel 6 is a torque rotation input part that is connected to one end of the screw 2. The first ejector pin 8 is inserted into the nut slider through the first ejector pin fixing shell 5, with a certain gap between it and the side wall of the nut slider, allowing it to slide up and down. The first spring 4 keeps the arc surface at the top of the first ejector pin 8 in close contact with the first eccentric arc surface of the screw 2 at all times.

[0082] To better understand the process of adjusting the treatment depth in this scheme, an example can be given. For instance, at the start of operation, the nut slider moves linearly in the left-right direction as the screw 2 rotates; in the up-down direction: when the first ejector pin 8 contacts the curved surface of the screw 2 with a radius of 0.9 mm, where the distance between this curved surface and the axis of the screw 2 is 0.9 mm, the distance from the transducer 10 to the housing surface is 1 mm. As the screw 2 rotates, the first ejector pin 8 is lifted by another curved surface, compressing the first spring 4, and then contacts the curved surface of the screw 2 with a radius of 1.5 mm, where the distance between this curved surface and the axis of the screw 2 is 1.5 mm, and the distance from the transducer 10 to the housing surface is... 0.4mm. As the screw 2 continues to rotate, the first ejector pin 8, under the tension of the first spring 4, contacts the curved surface of the screw 2 with a radius of 1.2mm. The distance between this curved surface and the axis of the screw 2 is 1.2mm. At this time, the distance between the transducer 10 and the surface of the housing is 0.7mm. The screw 2 continues to rotate, pushing the first ejector pin 8 to compress the first spring 4. The arc surface of the first ejector pin 8 contacts the curved surface of the screw 2 with a radius of 1.5mm. The screw 2 rotates one revolution in this way, completing one cycle of up and down movement. The input torque can rotate forward and reverse. When the nut slider moves to one end of the support 1, it can switch the direction of rotation, causing the nut slider to slide to the other end of the support 1.

[0083] The first eccentric arc surface 12 on screw 2 with different radii all have a certain curvature (e.g. Figure 4 As shown), the distance from the entire outer surface of a single first eccentric arc surface 12 to the axis of rotation is the same. When the first ejector pin 8 abuts in the same curved surface (i.e. the same first eccentric arc surface 12), the distance from the transducer 10 to the surface of the housing remains unchanged, thus providing sufficient time to control the transducer to complete the dotting in this interval.

[0084] The first eccentric arc surface 12 with different radii on the screw 2 determines the movement amplitude of the transducer. The first eccentric arc surface 12 can have different radii, numbers, and curvatures.

[0085] The torque input of screw 2 can be in different directions. It can be a torque parallel to the screw axis in this scheme, or a torque perpendicular to the screw axis converted by other means.

[0086] The structure of the first ejector pin 8 and the first spring 4 in this scheme can be replaced by other elastic telescopic structures.

[0087] In other words, in the first embodiment of this solution, a cam arc surface structure can be added to the standard screw, and then combined with the first ejector pin and the nut slider to realize that the transducer can move left and right while also moving up and down. At the same time, the up and down movement of the transducer is intermittent, providing sufficient reaction time for the transducer to make dots at different depths.

[0088] Among them, the eccentric arc surface and screw can be an integrated structure;

[0089] While ensuring a rotating fit with the nut, the screw can have different numbers of eccentric arc surfaces, different eccentric arc surface radii, or other shapes;

[0090] This solution can be supplemented with some positioning detection devices to help achieve accurate marking.

[0091] It should also be noted that the existing motion adjustment mechanism can adjust the treatment depth and axial movement distance in a sinusoidal curve, controlling the transducer to output energy when it moves to the peak or trough. However, this requires precise timing of the energy output control. If the timing is not accurate, the focal point will be inaccurate in the depth direction. The motion adjustment mechanism of this solution allows the transducer to stay at the peak or trough for a certain distance, providing the control module with sufficient reaction time to control the transducer to output energy at the corresponding position. This allows for better software adaptation and ensures that a row of points are at the same depth as much as possible.

[0092] In the second embodiment of this solution, as Figure 9 As shown, the rotating component has a second eccentric structure, which is spirally distributed.

[0093] The abutting component can drive the translation component to move along the second direction, which is the axial direction of the rotating component;

[0094] As the rotating component rotates, the second end of the abutting component elastically abuts against the second eccentric structure of the rotating component, causing the abutting component to move relative to the translating component along a third direction, which is perpendicular to the axis of the rotating component.

[0095] It should be noted that the outer peripheral wall of the rotating component may be provided with a second eccentric structure, which is spirally distributed. Of course, the distance from the second eccentric structure to the rotation axis of the rotating component is different. As mentioned above, the translational component can be slidably disposed on the support 1 along the second direction, and the abutting component can drive the translational component to move along the second direction. Additionally, as... Figure 9As shown, the rotating component can be inserted into the translating component, and the two are connected by internal and external threads, so that when the rotating component rotates, it can drive the translating component to slide along the axial direction of the rotating component. Moreover, the abutting component can be set on the translating component, and the abutting component can slide radially relative to the translating component, that is, the abutting component can slide in a third direction relative to the translating component. In this case, as the rotating component rotates, in addition to following the translating component to move along the axial direction of the rotating component, the second end of the abutting component can also elastically abut against the second eccentric structure of the rotating component, so that the abutting component moves in a third direction relative to the translating component, that is, the abutting component moves radially relative to the translating component, thereby changing the distance between the transducer 10 and the rotation axis of the rotating component, realizing the adjustment of the treatment depth of the transducer. In other words, this solution uses the elastic abutting cooperation between the second end of the abutting component and the spiral-shaped second eccentric structure of the rotating component to make the abutting component move radially relative to the translating component, thus enabling the transducer 10 to adjust the treatment depth in another way.

[0096] Specifically, such as Figure 10 As shown, the second eccentric structure includes: an eccentric groove formed in the rotating component, the bottom of the eccentric groove having multiple second eccentric arc surfaces 18 along the circumferential direction, the radii of the multiple second eccentric arc surfaces 18 to the rotation axis of the rotating component are not the same, that is, the radii of different second eccentric arc surfaces 18 to the rotation axis of the rotating component are not the same, wherein, the radius of a single second eccentric arc surface 18 to the rotation axis of the rotating component is the same; or, the radius of a single second eccentric arc surface 18 to the rotation axis of the rotating component gradually becomes different;

[0097] The bottom of the eccentric groove has a smooth transition between the two adjacent second eccentric arc surfaces 18;

[0098] As the rotating component rotates, the second end of the abutment component elastically abuts against multiple second eccentric arc surfaces 18 of the eccentric groove of the rotating component in sequence.

[0099] Among them, such as Figure 10As shown, the second eccentric structure is an eccentric groove formed on the rotating component and distributed in a spiral shape. The bottom of the eccentric groove has multiple second eccentric arc surfaces 18 along the circumferential direction. The distances from these multiple second eccentric arc surfaces 18 to the rotation axis of the rotating component are not the same, meaning the depths of these second eccentric arc surfaces 18 are different. Furthermore, the distances from these multiple second eccentric arc surfaces 18 to the rotation axis of the rotating component can gradually increase, gradually decrease, gradually increase and then gradually decrease, or gradually decrease and then gradually increase. Of course, these second eccentric arc surfaces 18 are concentric. The bottom of the eccentric groove is a smooth transition between the arc surfaces of two adjacent second eccentric arc surfaces 18, preventing large jumps in the radial movement of the abutment member along the rotating component and ensuring that the treatment depth of the transducer 10 can be smoothly adjusted. In addition, as the rotating component rotates, the abutment member not only follows... The translating member slides along the axial direction of the rotating member, and the second end of the abutting member also elastically abuts against multiple second eccentric arc surfaces 18 of the eccentric groove of the rotating member in sequence, so that the abutting member moves radially relative to the translating member along the rotating member, thereby realizing the adjustment of the treatment depth of the transducer 10; that is, in the second embodiment of this solution, the eccentric structure of the rotating member is an eccentric groove formed on the rotating member in a spiral shape, and the eccentric groove has different groove depths along the circumference. Of course, the groove depth of the eccentric groove can be gradient-varying. Then, the second end of the abutting member elastically abuts against different groove depths of the eccentric groove of the rotating member in sequence, so that the abutting member also moves radially relative to the translating member along the rotating member, thereby realizing the adjustment of the treatment depth of the transducer 10; the second eccentric structure of the rotating member is simple and facilitates the miniaturization of the motion adjustment mechanism.

[0100] In addition, each second eccentric arc surface 18 may have a certain curvature (preset curvature) and the same radius to the rotation axis of the rotating component. That is, the distance from the entire outer surface of each second eccentric arc surface 18 to the axis of the rotating component is the same. In this way, when the second end of the abutment elastically abuts against the same second eccentric arc surface 18, the treatment depth can remain unchanged, and the treatment depth can be adjusted with a delay, so that the adjustment of the treatment depth of the transducer 10 has a delay. Alternatively, each second eccentric arc surface 18 may have a certain curvature (preset curvature) and the radius to the rotation axis of the rotating component gradually becomes different. That is, the distance from the entire outer surface of each second eccentric arc surface 18 to the axis of the rotating component gradually becomes different, for example, gradually increasing or decreasing. In this way, when the second end of the abutment elastically abuts against the same second eccentric arc surface 18, the treatment depth can be continuously adjusted.

[0101] Furthermore, such as Figure 10 As shown, the rotating component includes a lead screw 13;

[0102] The spiral groove (track groove) of lead screw 13 serves as an eccentric groove.

[0103] Among them, such as Figure 9As shown, the translation component can be a second translation nut 21, which has internally threaded holes penetrating both ends; as Figure 7 As shown, the lead screw 13 is rotatably mounted between the two side supports of the support 1 in a first direction. The drive wheel 6 is mounted on the outer side wall of one side support of the support 1 and is connected to one end of the lead screw 13 for transmission. The internal threaded hole of the second translation nut 21 is passed through the middle part of the lead screw 13 and engages with the helical groove or eccentric groove of the lead screw 13. In addition, in this embodiment, similarly, the support 1 may be provided with another anti-rotation component to prevent the second translation nut 21 from rotating with the lead screw 13, and the second translation nut 21 can slide along the anti-rotation component. Figure 8 and Figure 9 As shown, the anti-rotation assembly includes two second anti-rotation pins 23, and second lugs are respectively provided on both sides of the second translation nut 21; two parallel second anti-rotation pins 23 are provided between the two side pillars of the support 1, and the second anti-rotation pins 23 pass through the second lugs on both sides of the second translation nut 21. The two second lugs of the second translation nut 21 can slide along the two second anti-rotation pins 23 one by one. The second anti-rotation pins 23 are parallel to the axis of the lead screw 13. As the lead screw 13 rotates, the two second lugs of the second translation nut 21 can slide along the two second anti-rotation pins 23 one by one, that is, they can make linear reciprocating motion parallel to the axis of the lead screw 13 as the lead screw 13 rotates. Moreover, the second translation nut 21 cannot rotate with the lead screw 13 due to the limitation of the second anti-rotation pins 23 on both sides; in addition, as Figure 8 As shown, the abutment can be a second ejector pin 20; in addition, the eccentric groove of the lead screw 13 can have two groove depths, that is, the bottom surface of the eccentric groove of the lead screw 13 can have two distances from the axis of the lead screw 13. In other words, the bottom of the eccentric groove of the lead screw 13 can have two second eccentric arc surfaces 18, and the distance (radius) from each second eccentric arc surface 18 to the axis of the lead screw 13 is different. When the second eccentric arc surface 18 of the lead screw 13 with different groove depths moves to be elastically abutted by the second end of the second ejector pin 20, the second ejector pin 20 will be lifted or lowered in a direction perpendicular to the axis of the lead screw 13. In this way, the second ejector pin 20 drives the transducer 10 to achieve linear reciprocating motion and adjustment of treatment depth under the rotation of the lead screw 13.

[0104] In other words, the depth of the eccentric groove of the lead screw 13 can be gradient-varying, meaning the distance from the bottom surface of the eccentric groove of the lead screw 13 to the axis of the lead screw 13 can be gradient-varying. This also means the radii of the multiple second eccentric arc surfaces 18 at the bottom of the eccentric groove of the lead screw 13 to the axis of the lead screw 13 can be gradient-varying. As the lead screw 13 rotates, the second ejector pin 20 not only follows the second translation nut 21 in a linear motion parallel to the axis of the lead screw 13, but also, under the elastic tension of the second spring 22, the second ejector pin 20 can adhere to the second eccentric arc surface 18 of the lead screw 13. When the depth of the second eccentric arc surface 18... When the distance between the surface of the bottom of the eccentric groove of the lead screw 13 and the axis of the lead screw 13 changes, the position of the second ejector pin 20 relative to the second translation nut 21 perpendicular to the axis of the lead screw 13 also changes, thereby realizing the adjustment of the treatment depth of the transducer. In this way, the transducer 10 can achieve linear reciprocating motion and treatment depth adjustment motion only under the rotation of the lead screw 13. Of course, the second motion adjustment mechanism in this embodiment is simple and also helps to achieve miniaturization. It can be seen that the motion adjustment mechanism in this embodiment realizes the zoom of the transducer 10 by changing the depth of the eccentric groove of the lead screw 13.

[0105] Furthermore, the abutment member is slidably mounted on the translation member via an abutment member fixing seat;

[0106] The abutment fixing seat is provided with an elastic element, which provides elastic force to the abutment so that the second end of the abutment elastically abuts against the rotating part.

[0107] It should be noted that, regardless of whether it is in the first embodiment or the second embodiment described above, the abutment member can be slidably disposed on the translation member in a third direction (radial direction of the rotating member) via the abutment member fixing seat, ensuring the reliability of the sliding of the abutment member relative to the translation member in the radial direction of the rotating member; wherein, such sliding arrangement can be external or internal, and the internal sliding arrangement is described below; the abutment member fixing seat is provided with an elastic member and is used to provide elastic force for the abutment member, so that the second end of the abutment member elastically abuts against the first eccentric structure or the second eccentric structure of the rotating member, that is, ensuring that the second end of the abutment member always abuts against the first eccentric structure or the second eccentric structure of the rotating member.

[0108] In this design, the abutment fixing seat is located on the translation component;

[0109] The abutment member slides through the abutment member fixing seat and the translation member in sequence. The first end of the abutment member is located outside the abutment member fixing seat and is connected to the transducer 10. The second end of the abutment member passes through the translation member and elastically abuts against the rotating member.

[0110] The elastic element is sleeved on the outside of the middle part of the abutment and provides elastic force to the second end of the abutment. As described above, the rotating component can be inserted into the translating component, and the abutment fixing seat can be located at the end of the translating component away from the rotating component. The abutment component slides sequentially through the abutment fixing seat and the translating component along a third direction. Of course, the abutment component can slide relative to the abutment fixing seat and the translating component along a third direction. The first end of the abutment component is located outside the abutment fixing seat and connected to the transducer 10. The second end can be inserted into the translating component and elastically abut against the first or second eccentric structure of the rotating component through the action of the elastic element. The elastic element is sleeved on the outside of the middle part of the abutment component and is used to provide elastic tension towards the rotating component for the second end of the abutment component, so that the second end of the abutment component elastically abuts against the first or second eccentric structure of the rotating component. In other words, this solution is designed in such a way that the abutment component and the elastic element can be built-in, making the structure of the motion adjustment mechanism more compact and helping to achieve miniaturization. Of course, both the abutment fixing seat and the translating component have through slots for the abutment component to pass through.

[0111] More specifically, in the first embodiment of this solution, as Figure 1 As shown, the elastic element is the first spring 4, and the abutment fixing seat is the first ejector pin fixing shell 5. The first ejector pin fixing shell 5 is located at the end of the first translation nut 7 away from the screw 2. The first ejector pin fixing shell 5 is fixed to the end of the first translation nut 7 away from the screw 2 by the first screw 25. The first ejector pin 8 slides sequentially through the first ejector pin fixing shell 5 and the first translation nut 7 in a third direction. The first end of the first ejector pin 8 is located on the outside of the first ejector pin fixing shell 5 and is connected to the transducer 10. Figure 2 As shown, the second end of the first ejector pin 8 passes through the internal threaded hole 19 of the first translation nut 7 and elastically abuts against the first eccentric arc surface 12 or external thread 17 of the screw 2; as Figure 6 As shown, the first spring 4 is sleeved on the outer side of the middle part of the first ejector pin 8; of course, the second end of the abutment member mentioned above protrudes through the translation member, which means that the second end of the first ejector pin 8 passes through the first translation nut 7 and is located in the internal thread hole 19.

[0112] In the second embodiment of this solution, as Figure 7 and Figure 8As shown, the elastic element is the second spring 22, and the abutment fixing seat is the second ejector pin fixing shell 24. The second ejector pin fixing shell 24 is disposed at the end of the second translation nut 21 away from the lead screw 13. The second ejector pin fixing shell 24 is fixed to the end of the second translation nut 21 away from the lead screw 13 by the second screw. The second ejector pin 20 slides sequentially through the second ejector pin fixing shell 24 and the second translation nut 21 in a third direction. The first end of the second ejector pin 20 is located outside the second ejector pin fixing shell 24 and is connected to the transducer 10. The second end passes through the internal thread hole of the second translation nut 21 and elastically abuts against the second eccentric arc surface 18 of the lead screw 13. Figure 8 As shown, the second spring 22 is sleeved on the outer side of the middle part of the second ejector pin 20; of course, the second end of the abutment member mentioned above protrudes through the translation member, which means that the second end of the second ejector pin 20 passes through the second translation nut 21 and is located in the internal thread hole of the second translation nut 21.

[0113] Furthermore, such as Figure 1 As shown, the abutment fixing seat has a first through groove 15, and the translation component has a second through groove 16. One end of the second through groove 16 is connected to the first through groove 15, and the other end is connected to the rotating component.

[0114] The middle part of the abutment is slidably disposed in the first through groove 15 and the second through groove 16, and the second end of the abutment has an abutment end face 26, which is close to the middle part of the abutment.

[0115] The elastic element is located in the first through groove 15 and the second through groove 16, with one end abutting against the first through groove 15 and the other end abutting against the abutting end face 26 of the second end of the abutting element.

[0116] It should be noted that, in the first embodiment of this solution, as Figure 1 As shown, the first ejector pin fixing shell 5 has a first through groove 15 along the third direction, and the first translation nut 7 has a second through groove 16 along the third direction. One end of the second through groove 16 of the first translation nut 7 is connected to the first through groove 15 of the first ejector pin fixing shell 5, and the other end is actually connected to the internal thread hole 19 of the first translation nut 7. In this way, the second end of the first ejector pin 8 can pass through the internal thread hole 19 of the first translation nut 7 and elastically abut against the external thread 17 of the screw 2 or the first eccentric arc surface 12.

[0117] The middle part of the first ejector pin 8 is slidably disposed within the first through groove 15 of the first ejector pin fixing shell 5 and the second through groove 16 of the first translation nut 7, such as Figure 6As shown, the radial dimension of the second end of the first ejector pin 8 can be larger than the diameter of the middle portion and the first end of the first ejector pin 8. The second end of the first ejector pin 8 can be a block structure, and its end can have an arc surface for abutting against the first or second eccentric structure of the rotating component, such as... Figure 6 As shown, the second end of the first ejector pin 8 also has an abutting end face 26. Of course, the abutting end face 26 of the second end of the first ejector pin 8 is close to the middle part of the first ejector pin 8.

[0118] like Figure 1 As shown, the first spring 4 is sleeved on the outer side of the middle part of the first ejector pin 8, and is also located in the first through groove 15 of the first ejector pin fixing shell 5 and the second through groove 16 of the first translation nut 7. One end of the first spring 4 abuts against the inner end face of the first through groove 15, and the other end abuts against the abutting end face 26 of the second end of the first ejector pin 8. The first spring 4 is used to provide elastic tension to the second end of the first ejector pin 8 toward the external thread 17 of the screw 2 or the first eccentric arc surface 12, so that the second end of the first ejector pin 8 elastically abuts against the external thread 17 of the screw 2 or the first eccentric arc surface 12.

[0119] In the second embodiment of this solution, similarly, the second ejector pin fixing shell 24, the second translation nut 21, the second ejector pin 20 and the second spring 22 also adopt the design described above in the first embodiment, which will not be repeated here.

[0120] This utility model embodiment also provides an ultrasonic therapy device, including a treatment head, which is the treatment head described above. Since this solution uses the aforementioned treatment head, it has corresponding beneficial effects, as detailed in the preceding description, which will not be repeated here.

[0121] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0122] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A treatment head, characterized in that, include: Support (1); A rotating component is rotatably connected to the support (1), and an external driving mechanism can drive the rotating component to rotate in a first direction; A translation component, which is slidably connected to the support (1), and the translation component is adapted to move along a second direction; The abutting member is slidably connected to the translation member. The abutting member is adapted to move relative to the translation member in a third direction. A transducer (10) is connected to the first end of the abutting member. The second end of the abutting member elastically abuts against the rotating member. As the rotating member rotates, the distance between the second end of the abutting member and the rotation axis of the rotating member changes accordingly.

2. The treatment head according to claim 1, characterized in that, The rotating component passes through the translating component, and the two are connected by a thread. The translating component can move along the second direction as the rotating component rotates, and the second direction is the axial direction of the rotating component. The support (1) is also used to prevent the translating component from rotating with the rotating component. The rotating component is also provided with a plurality of first eccentric structures along the circumferential direction. The radii of the plurality of first eccentric structures to the rotation axis of the rotating component are different. As the rotating component rotates, the abutting component not only moves with the translation component, but the second end of the abutting component also elastically abuts against the plurality of first eccentric structures of the rotating component in sequence, so that the abutting component moves relative to the translation component in a third direction, which is perpendicular to the axial direction of the rotating component.

3. The treatment head according to claim 2, characterized in that, The translation component has a through internal threaded hole; A portion of the circumferential region of the rotating component is provided with an external thread (17) for engaging with the internal threaded hole, and the remaining region is provided with a plurality of the first eccentric structures; wherein, the radius of the external thread (17) to the rotation axis of the rotating component is larger than the radius of the plurality of the first eccentric structures to the rotation axis of the rotating component. As the rotating component rotates, the second end of the abutting component also elastically abuts against the first eccentric structure and the external thread (17) of the rotating component in sequence.

4. The treatment head according to claim 3, characterized in that, Each of the first eccentric structures includes a first eccentric arc surface (12), and the radii of different first eccentric arc surfaces (12) to the rotation axis of the rotating component are different; wherein, a single first eccentric arc surface (12) has a preset curvature and the radius to the rotation axis of the rotating component is the same; or, a single first eccentric arc surface (12) has a preset curvature and the radius to the rotation axis of the rotating component gradually becomes different; The first eccentric arc surface (12) adjacent to the rotating part has a smooth transition with the external thread (17).

5. The treatment head according to claim 3, characterized in that, The rotating component includes a screw (2); The translation component includes a first translation nut (7).

6. The treatment head according to claim 2, characterized in that, The support (1) is provided with an anti-rotation component, which includes two first anti-rotation elements; Two first anti-rotation members are arranged in parallel on the support (1) and pass through both sides of the translation member. Both first anti-rotation members are parallel to the axis of the rotation member. The two sides of the translation member can slide along the two first anti-rotation members one by one.

7. The treatment head according to claim 1, characterized in that, The rotating component is provided with a second eccentric structure, which is spirally distributed; The abutting member can drive the translation member to move along the second direction, which is the axial direction of the rotating member; As the rotating member rotates, the second end of the abutting member elastically abuts against the second eccentric structure of the rotating member, causing the abutting member to move relative to the translation member along a third direction, which is perpendicular to the axial direction of the rotating member.

8. The treatment head according to claim 7, characterized in that, The second eccentric structure includes: an eccentric groove formed in the rotating component, the bottom of the eccentric groove having a plurality of second eccentric arc surfaces (18) along the circumferential direction, the radii of different second eccentric arc surfaces (18) to the rotation axis of the rotating component being different, wherein, the radii of a single second eccentric arc surface (18) to the rotation axis of the rotating component are the same; or, the radii of a single second eccentric arc surface (18) to the rotation axis of the rotating component are gradually different; The bottom of the eccentric groove has a smooth transition between the two adjacent second eccentric arc surfaces (18); As the rotating component rotates, the second end of the abutting component elastically abuts against a plurality of second eccentric arc surfaces (18) of the eccentric groove of the rotating component in sequence.

9. The treatment head according to claim 8, characterized in that, The rotating component includes a lead screw (13); The spiral groove of the lead screw (13) serves as the eccentric groove.

10. The treatment head according to claim 1, characterized in that, The abutting member is slidably mounted on the translational member via an abutting member fixing seat; The abutment fixing seat is provided with an elastic element, which provides elastic force to the abutment so that the second end of the abutment elastically abuts against the rotating part.

11. The treatment head according to claim 10, characterized in that, The abutment fixing seat is disposed on the translation member; The abutting member slides through the abutting member fixing seat and the translation member in sequence. The first end of the abutting member is located outside the abutting member fixing seat and is connected to the transducer (10). The second end of the abutting member passes through the translation member and elastically abuts against the rotating member. The elastic element is sleeved on the outside of the middle portion of the abutment and provides the elastic force to the second end of the abutment.

12. The treatment head according to claim 11, characterized in that, The abutment fixing seat is provided with a first through groove (15), and the translation component is provided with a second through groove (16). One end of the second through groove (16) is connected to the first through groove (15), and the other end is connected to the rotating component. The middle part of the abutment is slidably disposed in the first through groove (15) and the second through groove (16), and the second end of the abutment has an abutment end face (26), which is close to the middle part of the abutment. The elastic element is located in the first through groove (15) and the second through groove (16), with one end abutting against the first through groove (15) and the other end abutting against the abutting end face (26) of the second end of the abutting element.

13. An ultrasonic therapy device, comprising a treatment head, characterized in that, The treatment head is the treatment head as described in any one of claims 1-12.

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