Therapeutic head and therapeutic apparatus

Abstract

The invention discloses a treatment head and a treatment instrument, and relates to the technical field of treatment instruments, the treatment head comprises a shell, a transducer and an adapter, an accommodating cavity is formed in the shell, and one end of the shell is provided with an opening communicated with the accommodating cavity; the energy converter is movably arranged in the accommodating cavity; the adapter is arranged in the containing cavity and comprises a first end and a second end which are arranged oppositely, the first end is exposed out of the opening and used for being detachably connected with the host, and the second end is in transmission connection with the transducer and used for driving the transducer to do telescopic motion. According to the technical scheme, the treatment head with the adjustable focal length is provided, so that the use cost of the treatment instrument is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of therapeutic apparatuses, and in particular to a therapeutic head and a therapeutic apparatus. Background Art

[0002] In the related art, an ultrasonic therapeutic device includes a detachably connected main unit and a treatment head, wherein the treatment head is a consumable and multiple treatment heads need to be replaced during the service life of the main unit. Currently, different focal length treatments of ultrasonic therapeutic devices are often achieved by replacing multiple treatment heads with different focal lengths, which results in cumbersome focusing operations of the ultrasonic therapeutic device and high use costs. Summary of the invention

[0003] The main purpose of the present invention is to provide a treatment head and a treatment device, aiming to provide a treatment head with adjustable focal length to reduce the use cost of the treatment device.

[0004] To achieve the above-mentioned purpose, the treatment head proposed by the present invention comprises:

[0005] case;

[0006] an ultrasonic transducer, the ultrasonic transducer being movably disposed in the housing and being used for emitting ultrasonic energy;

[0007] An adapter assembly, wherein the adapter assembly is rotatably connected to the shell, a first end of the adapter assembly is transmission-connected to the ultrasonic transducer, a second end of the adapter assembly is used for detachably connecting to an external handle, and the external handle is used to drive the adapter assembly to rotate around a first direction to drive the ultrasonic transducer to move along the first direction.

[0008] In one embodiment, the adapter assembly includes:

[0009] A connecting member, wherein one end of the connecting member facing the ultrasonic transducer is drivingly connected to the ultrasonic transducer; and

[0010] Two first one-way bearings, the two first one-way bearings are respectively connected to the connecting member, the first one-way bearings are provided with a first axial hole, the two first axial holes are coaxially arranged, and are used to be plugged and matched with the driving end of the external handle in sequence;

[0011] The two first one-way bearings are used to one-way stop the driving end in opposite directions, so that when the driving end rotates forward or reversely around the first direction, it is locked with the connecting member and rotates in the same direction.

[0012] In one embodiment, the first one-way bearing comprises:

[0013] A first main body, wherein the first main body is an internally hollow ring structure, and the first shaft hole is formed in the first main body for plugging and matching with the driving end;

[0014] a first locking portion, the first locking portion being protruding from an inner wall of the first shaft hole, the first locking portion having a first stopping direction and being used for deforming when the driving end rotates along the first stopping direction to apply a locking force to the driving shaft, so that the driving end is locked to the first main body; and

[0015] The first retaining portion is disposed around the circumference of the first axial hole and connected to the first locking portion, so as to keep the first locking portion in a tendency to return to its initial state.

[0016] In one embodiment, the treatment head further comprises a support structure, which is disposed in the shell and slidably connected to the inner wall of the shell;

[0017] One end of the support structure is fixedly connected to the ultrasonic transducer, and the other end is threadedly connected to the connecting member, so as to drive the ultrasonic transducer to move along the first direction when the connecting member rotates around the first direction.

[0018] In one embodiment, the outer peripheral wall of the support structure is provided with one of a guide block and a guide groove, the inner wall of the shell is provided with the other of the guide block and the guide groove, and the guide block is slidably connected to the guide groove.

[0019] In one embodiment, a groove is provided at one end of the adapter assembly facing away from the ultrasonic transducer, and one of a positioning groove and a positioning block is provided on the inner wall of the groove, and the other of the positioning groove and the positioning block is provided on the external handle, and the positioning groove is used for limiting cooperation with the positioning block to lock the driving end and the adapter assembly.

[0020] In one embodiment, a second one-way bearing is provided at the second end of the adapter assembly, and the second one-way bearing comprises:

[0021] A second main body, wherein the second main body is an internally hollow ring structure, and a second axial hole is formed in the second main body for plugging and mating with the driving end of the external handle;

[0022] a plurality of second locking parts, wherein the plurality of second locking parts are protrudingly disposed on the inner wall of the second shaft hole, wherein some of the second locking parts have a first stopping direction for deforming when the driving end rotates along the first stopping direction to apply a locking force to the driving shaft, and the remaining second locking parts have a second stopping direction opposite to the first stopping direction for deforming when the driving end rotates along the second stopping direction to apply a locking force to the driving shaft; and

[0023] The second retaining portion is disposed around the circumference of the second axial hole and is sequentially connected to a plurality of the second locking portions, so as to keep the second locking portions in a tendency to return to their initial state.

[0024] In one embodiment, the housing is provided with a connection hole, and the adapter assembly is movably inserted into the connection hole;

[0025] The treatment head further comprises a sealing member, which is arranged around the circumference of the connecting hole and is arranged between the adapter assembly and the connecting hole.

[0026] In one embodiment, the seal comprises:

[0027] A sleeve portion, the sleeve portion is disposed in the connection hole and is arranged around the circumference of the connection hole, the outer wall of the sleeve portion abuts against the inner wall of the connection hole, and the inner wall of the sleeve portion and the adapter assembly are spaced apart; and

[0028] At least one protrusion is protruded from the inner side wall of the sleeve body and is arranged around the circumference of the adapter component to fit circumferentially with the outer side wall of the connecting component.

[0029] The present invention further provides a therapeutic device, comprising an external handle and a therapeutic head as described in any one of the above, wherein the external handle comprises:

[0030] a motor having a motor shaft disposed toward the treatment head; and

[0031] An adapter shaft, one end of which is fixedly connected to the motor, and the other end of which protrudes from the outer wall of the external handle and is detachably connected to the adapter assembly of the treatment head, for driving the adapter assembly to rotate around a first direction.

[0032] The technical solution of the present invention can realize quick disassembly and assembly between the treatment head and the external handle by making the first end of the adapter assembly and the external handle detachable, so as to facilitate maintenance or replacement of the treatment head; and the second end of the adapter assembly is connected to the ultrasonic transducer in a transmission manner, which is used to drive the ultrasonic transducer to telescopic movement, so that the ultrasonic transducer can be connected to the drive member of the external handle such as a motor through the adapter assembly, so that the ultrasonic transducer can achieve position change in the first direction under the drive of the external handle, thereby realizing the function of adjustable focal length of the treatment head. With such a setting, compared with the method of achieving different focal length treatment by replacing multiple treatment heads with different focal lengths in the related art, the technical solution of the present invention can achieve different focal length treatment by simply adjusting the telescopic position of the ultrasonic transducer through the adapter assembly, which is conducive to reducing the use cost of the therapeutic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0034] Figure 1 This is a schematic structural diagram of an embodiment of a therapeutic device provided by the present invention.

[0035] Description of Figure Numbers:

[0036] 100. Therapeutic device; 10. Therapeutic head; 11. Shell; 111. Connecting hole; 12. Ultrasonic transducer; 13. Adapter assembly; 131. Connector; 132. First one-way bearing; 14. Bracket structure; 15. Sealing member; 151. Sleeve body; 152. Raised portion; 20. External handle; 21. Motor; 211. Motor shaft; 22. Adapter shaft.

[0037] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0040] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0041] In the related art, an ultrasonic therapeutic device includes a detachably connected main unit and a treatment head, wherein the treatment head is a consumable and multiple treatment heads need to be replaced during the service life of the main unit. Currently, different focal length treatments of ultrasonic therapeutic devices are often achieved by replacing multiple treatment heads with different focal lengths, which results in cumbersome focusing operations of the ultrasonic therapeutic device and high use costs.

[0042] The present invention provides a treatment head 10 .

[0043] See also Figure 1 In one embodiment of the present invention, the treatment head 10 comprises:

[0044] Housing 11;

[0045] An ultrasonic transducer 12, wherein the ultrasonic transducer 12 is movably disposed in the housing 11 and is used for emitting ultrasonic energy;

[0046] The adapter assembly 13 is rotatably connected to the shell 11, the first end of the adapter assembly 13 is transmission-connected to the ultrasonic transducer 12, the second end of the adapter assembly 13 is used for detachable connection with the external handle 20, and the external handle 20 is used to drive the adapter assembly 13 to rotate around a first direction to drive the ultrasonic transducer 12 to move along the first direction.

[0047] Among them, by rotatably connecting the adapter component 13 and the housing 11, the structural stability of the treatment head 10 can be improved. By connecting the first end and the second end of the adapter component 13 to the external handle 20 and the ultrasonic transducer 12 respectively, the rotational motion of the driving end of the external handle 20 around the first direction can be converted into a linear motion along the first direction through the adapter component 13 on the basis of realizing a detachable connection between the treatment head 10 and the external handle 20, so as to realize the motion transmission between the driving end of the external handle 20 and the ultrasonic transducer 12.

[0048] For details, please refer to Figure 1 , the first direction is shown in the figure. The driving end of the external handle 20 can rotate forward or reverse around the first direction. When the driving end rotates forward around the first direction, the ultrasonic transducer 12 can be driven to move forward along the first direction through the adapter assembly 13. When the driving end reverses around the first direction, the ultrasonic transducer 12 can be driven to move reversely along the first direction through the adapter assembly 13. Of course, the technical solution of the present invention is not limited to this. It can also be that when the driving end rotates forward around the first direction, the ultrasonic transducer 12 is driven to move reversely along the first direction, and when the driving end reverses around the first direction, the ultrasonic transducer 12 is driven to move forward along the first direction.

[0049] Furthermore, in some embodiments, the outer wall of the ultrasonic transducer 12 is provided with one of the guide ribs and the guide grooves, the inner wall of the shell 11 is provided with the other of the guide ribs and the guide grooves, the guide grooves are extended along the first direction, and the guide ribs and the guide grooves are slidably connected. With such a configuration, the guiding and limiting effects of the inner wall of the shell 11 on the ultrasonic transducer 12 can improve the movement stability of the ultrasonic transducer 12.

[0050] The technical solution of the present invention enables quick disassembly and assembly between the treatment head 10 and the external handle 20 by making the first end of the adapter assembly 13 and the external handle 20 detachably connected, so as to facilitate maintenance or replacement of the treatment head 10; and, the second end of the adapter assembly 13 is transmission-connected to the ultrasonic transducer 12 for driving the ultrasonic transducer 12 to telescopically move, so that the ultrasonic transducer 12 can be docked with the external handle 20 through the adapter assembly 13, so that the ultrasonic transducer 12 can achieve position change in the first direction under the drive of the external handle 20, thereby realizing the function of adjustable focal length of the treatment head 10.

[0051] Compared with the related art method of achieving different focal length treatments by replacing multiple treatment heads 10 with different focal lengths, the technical solution of the present invention can achieve different focal length treatments by simply adjusting the telescopic position of the ultrasonic transducer 12 through the adapter component 13, which is beneficial to reducing the use cost of the therapeutic device 100.

[0052] See also Figure 1 In an embodiment of the present invention, the adapter component 13 includes:

[0053] A connecting member 131, wherein one end of the connecting member 131 facing the ultrasonic transducer 12 is drivingly connected to the ultrasonic transducer 12; and

[0054] Two first one-way bearings 132, the two first one-way bearings 132 are respectively connected to the connecting member 131, the first one-way bearings 132 are provided with a first axial hole, the two first axial holes are coaxially arranged, and are used to be plugged and matched with the driving end of the external handle 20 in sequence;

[0055] The two first one-way bearings 132 are used to one-way stop the driving end in opposite directions, so that when the driving end rotates forward or reversely around the first direction, it is locked with the connecting member 131 and rotates in the same direction.

[0056] Specifically, the driving end of the external handle 20 is a rotatable shaft structure. When the shaft structure rotates forward around the first direction, the two first one-way bearings 132 can stop the driving end in one direction in opposite directions, so that the shaft structure can rotate relative to one of the first one-way bearings 132, and can move synchronously with the other first one-way bearing 132, so as to drive the adapter to rotate synchronously through the first one-way bearing 132. Similarly, when the shaft structure rotates reversely around the first direction, it can also drive the adapter to rotate synchronously by moving synchronously with one of the first one-way bearings 132, which will not be described in detail here.

[0057] With such arrangement, when the driving end of the external handle 20 is a shaft structure, the first one-way bearing 132 of the adapter assembly 13 and the shaft structure can be quickly connected along the axial direction to achieve rapid assembly and disassembly of the treatment head 10 and the external handle 20. In addition, by making the two first one-way bearings 132 unidirectionally stop the driving end of the external handle 20 in opposite directions, the driving end can be locked with the adapter assembly 13 and rotate in the same direction when moving forward or reversely around the first direction.

[0058] Of course, the technical solution of the present invention is not limited thereto. In some embodiments, the driving end of the external handle 20 can also be directly configured to be retractable along the first direction, and realize a transmission connection with the ultrasonic transducer 12 through the adapter assembly 13, so as to drive the ultrasonic transducer 12 to move linearly along the first direction to realize the focal length adjustment of the treatment head 10. The specific implementation method can be set according to actual needs and is not limited here.

[0059] In an embodiment of the present invention, the first one-way bearing 132 includes:

[0060] A first main body, wherein the first main body is an internally hollow ring structure, and the first shaft hole is formed in the first main body for plugging and matching with the driving end;

[0061] a first locking portion, the first locking portion being protruding from an inner wall of the first shaft hole, the first locking portion having a first stopping direction and being used for deforming when the driving end rotates along the first stopping direction to apply a locking force to the driving shaft, so that the driving end is locked to the first main body; and

[0062] The first retaining portion is disposed around the circumference of the first axial hole and connected to the first locking portion, so as to keep the first locking portion in a tendency to return to its initial state.

[0063] Specifically, when the driving end rotates in the first stop direction, the first locking portion can apply a locking force axially toward the driving end. As the locking force increases, the driving end can be locked to the first one-way bearing 132, so that the driving end and the adapter assembly 13 provided with the first one-way bearing 132 can rotate synchronously. When the driving end stops rotating or rotates in the direction opposite to the first stop direction, the locking force applied by the first locking portion to the driving end is reduced or stops being applied to the driving end, so that the first one-way bearing 132 releases the driving end. In this way, the one-way stopping function of the first one-way bearing 132 on the driving end can be realized.

[0064] See also Figure 1 In an embodiment of the present invention, the treatment head 10 further includes a support structure 14, which is disposed in the housing 11 and is slidably connected to the inner wall of the housing 11;

[0065] One end of the support structure 14 is fixedly connected to the ultrasonic transducer 12 , and the other end is threadedly connected to the connecting member 131 , so as to drive the ultrasonic transducer 12 to move along the first direction when the connecting member 131 rotates around the first direction.

[0066] Specifically, one of the threaded hole and the threaded rod may be provided at the end of the adapter, and the other of the threaded hole and the threaded rod may be provided at one end of the support structure 14 facing the adapter, and the threaded matching of the adapter and the support structure 14 is realized through the threaded hole and the threaded rod. When the adapter is used to rotate forward or reverse relative to the support structure 14, the threaded rod can be screwed into or out of the threaded hole accordingly. With such a configuration, the rotation of the adapter around the first direction can be converted into the linear motion of the support structure 14 along the first direction, so that the support structure 14 can be raised and lowered, and the position of the ultrasonic transducer 12 in the first direction can be adjusted through the support structure 14, so as to realize the focal length adjustment function of the treatment head 10.

[0067] In an embodiment of the present invention, the outer peripheral wall of the support structure 14 is provided with one of a guide block and a guide groove, the inner wall of the shell 11 is provided with the other of the guide block and the guide groove, and the guide block is slidably connected to the guide groove.

[0068] The guide groove is extended along the first direction, and can guide the guide block therein, thereby improving the movement stability of the support structure 14 .

[0069] See also Figure 1 In an embodiment of the present invention, a groove is provided at one end of the adapter assembly 13 away from the ultrasonic transducer 12, and the inner wall of the groove is provided with one of a positioning groove and a positioning block, and the external handle 20 is provided with the other of the positioning groove and the positioning block, and the positioning groove is used for limiting the positioning block to lock the driving end and the adapter assembly 13.

[0070] Among them, by opening a groove at the end of the adapter away from the ultrasonic transducer 12 and providing a positioning groove in the groove, a keyway structure can be formed on the groove wall of the groove. At the same time, by providing a positioning block at the driving end of the external handle 20, a key structure matching the keyway structure can be formed. In this way, the driving end of the external handle 20 can be inserted into the groove in a specific direction, so that the key structure and the keyway structure are relatively positioned and limitedly matched to achieve a locking installation between the adapter assembly 13 and the external handle 20.

[0071] In an embodiment of the present invention, a second one-way bearing is provided at the second end of the adapter assembly 13, and the second one-way bearing comprises:

[0072] A second main body, wherein the second main body is an internally hollow ring structure, and a second axial hole is formed in the second main body for plugging and mating with the driving end of the external handle 20;

[0073] a plurality of second locking parts, wherein the plurality of second locking parts are protrudingly disposed on the inner wall of the second shaft hole, wherein some of the second locking parts have a first stopping direction for deforming when the driving end rotates along the first stopping direction to apply a locking force to the driving shaft, and the remaining second locking parts have a second stopping direction opposite to the first stopping direction for deforming when the driving end rotates along the second stopping direction to apply a locking force to the driving shaft; and

[0074] The second retaining portion is disposed around the circumference of the second axial hole and is sequentially connected to a plurality of the second locking portions, so as to keep the second locking portions in a tendency to return to their initial state.

[0075] Among them, by making some of the second locking parts lock the driving shaft in the first stop direction and the rest of the parts lock the driving shaft in the second stop direction, the driving end can be locked to the second one-way bearing in both forward and reverse rotation, so that the driving end can rotate synchronously with the adapter assembly 13 provided with the second one-way bearing in both forward and reverse rotation. Compared with the technical solution of providing two first one-way bearings 132 that one-way stop the driving end in opposite directions in the aforementioned embodiment, this solution can achieve the same technical effect through a single second one-way bearing, which is conducive to reducing the number of components of the adapter assembly 13, and is conducive to reducing the assembly difficulty and occupied space of the adapter assembly 13.

[0076] See also Figure 1 In the embodiment of the present invention, the housing 11 is provided with a connecting hole 111, and the adapter assembly 13 is movably disposed in the connecting hole 111;

[0077] The treatment head 10 further includes a sealing member 15 , which is disposed around the circumference of the connecting hole 111 and is disposed between the adapter assembly 13 and the connecting hole 111 .

[0078] The seal 15 may be elastic and can be elastically deformed when arranged between the adapter assembly 13 and the connection hole 111 to seal and fill the installation gap between the connection hole 111 of the housing 11 and the adapter assembly 13. In this way, the seal 15 can be used to achieve the sealing function between the housing 11 and the adapter assembly 13 under the premise that the adapter assembly 13 can be rotatably arranged, thereby facilitating the improvement of the protection performance of the treatment head 10.

[0079] See also Figure 1 In an embodiment of the present invention, the sealing member 15 comprises:

[0080] A sleeve portion 151, wherein the sleeve portion 151 is disposed in the connection hole 111 and is disposed around the connection hole 111 along a circumferential direction, wherein an outer wall of the sleeve portion 151 abuts against an inner wall of the connection hole 111, and an inner wall of the sleeve portion 151 and the adapter assembly 13 are spaced apart; and

[0081] At least one protrusion 152 is protruded from the inner wall of the sleeve portion 151 and is disposed around the circumference of the adapter assembly 13 to fit circumferentially with the outer wall of the connecting assembly.

[0082] By making the outer wall of the sleeve 151 abut against the inner wall of the connection hole 111, the seal 15 and the connection hole 111 can be closely matched to achieve circumferential sealing of the inner edge of the connection hole 111. By providing a protrusion 152 on the inner side wall of the sleeve 151, the protrusion 152 can be used to achieve circumferential sealing of the outer edge of the connection assembly. The protrusion 152 can be, but is not limited to, inclined to the radial direction of the connection hole 111.

[0083] In some embodiments, the sleeve portion 151 extends along the first direction and is located between the connecting hole 111 and the adapter assembly 13; a plurality of protrusions 152 may be provided, and the plurality of protrusions 152 may be spaced apart on the sleeve portion 151 along the first direction. In this way, a plurality of protrusions 152 may be used to achieve multi-layer sealing of the outer edge of the connecting assembly, which is beneficial to ensuring the sealing performance of the seal 15.

[0084] The present invention also proposes a therapeutic device 100, which includes an external handle 20 and a therapeutic head 10. The specific structure of the therapeutic head 10 refers to the above-mentioned embodiment. Since the therapeutic device 100 adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0085] See also Figure 1 In an embodiment of the present invention, the external handle 20 comprises:

[0086] A motor 21, wherein the motor 21 has a motor shaft 211 disposed toward the treatment head 10; and

[0087] The adapter shaft 22 has one end fixedly connected to the motor 21, and the other end protrudes from the outer wall of the external handle 20 and is detachably connected to the adapter assembly 13 of the treatment head 10, so as to drive the adapter assembly 13 to rotate around a first direction.

[0088] The motor shaft 211 is extended along the first direction and is used for forward or reverse rotation around the first direction; the adapter shaft 22 is coaxially arranged with the motor shaft 211, and can be fixedly connected to the motor shaft 211 of the motor 21 by, but not limited to, plug-fitting. The end of the adapter assembly 13 of the treatment head 10 can be exposed to the outside through the connection hole 111 of the housing 11 of the treatment head 10, and the end of the adapter shaft 22 away from the motor shaft 211 can be detachably connected to the adapter assembly 13, so that the motion transmission between the motor shaft 211 and the adapter assembly 13 can be realized through the adapter shaft 22.

[0089] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A treatment head, characterized in that: include: case; an ultrasonic transducer, the ultrasonic transducer being movably disposed in the housing and being used for emitting ultrasonic energy; An adapter assembly, wherein the adapter assembly is rotatably connected to the shell, a first end of the adapter assembly is transmission-connected to the ultrasonic transducer, a second end of the adapter assembly is used for detachably connecting to an external handle, and the external handle is used to drive the adapter assembly to rotate around a first direction to drive the ultrasonic transducer to move along the first direction.

2. The treatment head according to claim 1, characterized in that: The switching assembly comprises: A connecting member, wherein one end of the connecting member facing the ultrasonic transducer is drivingly connected to the ultrasonic transducer; and Two first one-way bearings, the two first one-way bearings are respectively connected to the connecting member, the first one-way bearings are provided with a first axial hole, the two first axial holes are coaxially arranged, and are used to be plugged and matched with the driving end of the external handle in sequence; The two first one-way bearings are used to one-way stop the driving end in opposite directions, so that when the driving end rotates forward or reversely around the first direction, it is locked with the connecting member and rotates in the same direction.

3. The treatment head according to claim 2, characterized in that: The first one-way bearing comprises: A first main body, wherein the first main body is an internally hollow ring structure, and the first shaft hole is formed in the first main body for plugging and matching with the driving end; a first locking portion, the first locking portion being protruding from an inner wall of the first shaft hole, the first locking portion having a first stopping direction and being used for deforming when the driving end rotates along the first stopping direction to apply a locking force to the driving shaft, so that the driving end is locked to the first main body; and The first retaining portion is disposed around the circumference of the first axial hole and connected to the first locking portion, so as to keep the first locking portion in a tendency to return to its initial state.

4. The treatment head according to claim 2, characterized in that: The treatment head further comprises a support structure, which is disposed in the shell and slidably connected to the inner wall of the shell; One end of the support structure is fixedly connected to the ultrasonic transducer, and the other end is threadedly connected to the connecting member, so as to drive the ultrasonic transducer to move along the first direction when the connecting member rotates around the first direction.

5. The treatment head according to claim 4, characterized in that: The outer peripheral wall of the support structure is provided with one of a guide block and a guide groove, the inner wall of the shell is provided with the other of the guide block and the guide groove, and the guide block is slidably connected to the guide groove.

6. The treatment head according to claim 2, characterized in that: A groove is provided at one end of the adapter assembly facing away from the ultrasonic transducer, and one of a positioning groove and a positioning block is provided on the inner wall of the groove. The external handle is provided with the other of the positioning groove and the positioning block, and the positioning groove is used for limiting the positioning block to lock the driving end and the adapter assembly.

7. The treatment head according to claim 1, characterized in that: The second end of the adapter assembly is provided with a second one-way bearing, and the second one-way bearing comprises: A second main body, wherein the second main body is an internally hollow ring structure, and a second axial hole is formed in the second main body for plugging and mating with the driving end of the external handle; a plurality of second locking parts, wherein the plurality of second locking parts are protrudingly disposed on the inner wall of the second shaft hole, wherein some of the second locking parts have a first stopping direction for deforming when the driving end rotates along the first stopping direction to apply a locking force to the driving shaft, and the remaining second locking parts have a second stopping direction opposite to the first stopping direction for deforming when the driving end rotates along the second stopping direction to apply a locking force to the driving shaft; and The second retaining portion is disposed around the circumference of the second axial hole and is sequentially connected to a plurality of the second locking portions, so as to keep the second locking portions in a tendency to return to their initial state.

8. The treatment head according to any one of claims 1 to 7, characterized in that: The housing is provided with a connection hole, and the adapter assembly is movably inserted into the connection hole; The treatment head further comprises a sealing member, which is arranged around the circumference of the connecting hole and is arranged between the adapter assembly and the connecting hole.

9. The treatment head according to claim 8, characterized in that: The sealing element comprises: A sleeve portion, the sleeve portion is disposed in the connection hole and is arranged around the circumference of the connection hole, the outer wall of the sleeve portion abuts against the inner wall of the connection hole, and the inner wall of the sleeve portion and the adapter assembly are spaced apart; and At least one protrusion is protruded from the inner side wall of the sleeve body and is arranged around the circumference of the adapter component to fit circumferentially with the outer side wall of the connecting component.

10. A therapeutic apparatus, characterized in that: The invention comprises an external handle and a treatment head as claimed in any one of claims 1 to 9, wherein the external handle comprises: a motor having a motor shaft disposed toward the treatment head; and An adapter shaft, one end of which is fixedly connected to the motor, and the other end of which protrudes from the outer wall of the external handle and is detachably connected to the adapter assembly of the treatment head, for driving the adapter assembly to rotate around a first direction.

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