Therapeutic head and therapeutic apparatus

Abstract

The utility model discloses a treatment head and a therapeutic apparatus, relates to the medical instrument technical field, the treatment head comprises a housing, a connecting piece and a linear transducer, an external driving mechanism is suitable for being detachably connected with the first end of the connecting piece, the second end of the connecting piece at least partially passes through the housing, and the second end of the connecting piece is detachably connected with the linear transducer. The connecting piece is movably connected with the shell; the linear transducer is arranged in the shell, the linear transducer is connected with the second end of the connecting piece, the linear transducer is used for outputting focusing areas which are linearly arranged, and the external driving mechanism is used for driving the linear transducer to do spiral movement in the first direction through the connecting piece. According to the technical scheme provided by the utility model, the treatment head can output a three-dimensional focal region, the treatment range of the treatment head is expanded, and the treatment efficiency is improved.

Description

Technical Field

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

[0002] In ultrasound treatments targeting superficial skin tissues, a high-power focused ultrasound transducer is needed to concentrate sound energy into the subcutaneous tissue, causing collagen fibers in the reticular layer of the dermis to denature and contract, and stimulating the tissue to produce new collagen and elastin, thereby achieving cosmetic results.

[0003] Existing medical aesthetic ultrasound products typically utilize point transducers to output energy to a focal point. To expand the treatment area, the point transducer is usually controlled to continuously apply energy to the focal point, requiring a focusing mechanism to drive its movement. However, this method of expanding the treatment area not only results in a complex driving mechanism for the treatment head with a high probability of failure, but also provides a very limited expanded treatment area, which is detrimental to treatment efficiency. Utility Model Content

[0004] The main purpose of this invention is to provide a treatment head and a treatment device that enables the treatment head to output a three-dimensional focal zone, expand the treatment range of the treatment head, and improve treatment efficiency.

[0005] To achieve the above objectives, this utility model proposes a treatment head, comprising:

[0006] case;

[0007] A connector, an external drive mechanism adapted to be detachably connected to a first end of the connector, a second end of the connector at least partially extending through the housing, and the connector being movably connected to the housing; and

[0008] A linear transducer is disposed inside a housing and connected to the second end of the connector. The linear transducer is used to output a linearly arranged focusing area. The external drive mechanism is used to drive the linear transducer to move spirally in a first direction through the connector.

[0009] In one embodiment, the treatment head further includes a guide member mounted on the housing, and the connector is movably connected to the guide member. The guide member is used to guide the connector member to move spirally along the first direction.

[0010] In one embodiment, the connector has a first mating portion, and the guide has a second mating portion. The first mating portion and the second mating portion are movably connected, and the connector is used to move spirally relative to the guide in the first direction through the first mating portion and the second mating portion.

[0011] In one embodiment, the first mating part is a pin, and the second mating part is a groove, wherein the pin is at least partially located in the groove and is adapted to slide along the opening direction of the groove;

[0012] Alternatively, the first mating part is a pin, the second mating part is an opening, the pin is at least partially located in the opening, and is adapted to slide along the opening direction of the opening.

[0013] In one embodiment, the guide member has a hollow structure and is sleeved on the connector.

[0014] In one embodiment, a limiting groove is formed on the housing, and the guide includes an annular protrusion structure, which is confined within the limiting groove.

[0015] In one embodiment, the treatment head further includes a waterproof bearing mounted on the housing and located between the housing and the connector.

[0016] In one embodiment, the treatment head further includes a first one-way bearing and a second one-way bearing, which are mounted on a first end of the connector and rotate in opposite directions. The external drive mechanism is used to detachably connect to the connector via the first one-way bearing and the second one-way bearing.

[0017] This utility model also proposes a therapeutic device, which includes a handle and a treatment head as described above, a drive mechanism is disposed in the handle, the handle and the treatment head are detachably connected, and the drive shaft of the drive mechanism is detachably connected to the connector.

[0018] In one embodiment, the driving mechanism is a rotary telescopic motor, and the drive shaft of the rotary drive motor is detachably connected to the connecting member.

[0019] In this invention, the housing houses a linear transducer, and a sound-conducting liquid can be injected into the housing to conduct the ultrasonic waves emitted by the linear transducer. The first end of a connector is connected to an external drive mechanism outside the housing, and the second end of the connector extends into the housing and is connected to the linear transducer inside the housing. The external drive mechanism drives the connector to move the linear transducer helically along a first direction. The connector is movably connected to the housing, allowing it to move relative to the helical motion. Simultaneously, the ultrasonic waves output by the linear transducer form a linearly arranged focusing area, thus creating a three-dimensional focal zone, greatly increasing the treatment range of the treatment head and improving its treatment efficiency. Attached Figure Description

[0020] 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 the structures shown in these drawings without creative effort.

[0021] Figure 1 A schematic diagram of a state structure of the treatment head in one embodiment of this utility model;

[0022] Figure 2 This is a schematic diagram of another state of the treatment head in one embodiment of the present invention.

[0023] Explanation of icon numbers:

[0024] 100. Treatment head; 1. Housing; 11. Sound-transmitting window; 12. Limiting groove; 13. Mounting groove; 2. Connector; 21. First end; 211. Receiving groove; 22. Second end; 23. First mating part; 3. Guide; 31. Second mating part; 32. Annular protrusion structure; 4. Waterproof bearing; 5. First one-way bearing; 6. Second one-way bearing; 7. Drive mechanism; 71. Drive shaft; 8. Linear transducer.

[0025] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] 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 scope of protection of the present utility model.

[0027] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0028] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0029] Please refer to the reference. Figure 1 and Figure 2 As shown, this utility model proposes a treatment head 100, which includes a housing 1, a connector 2, and a linear transducer 8. An external drive mechanism 7 is adapted to be detachably connected to the first end 21 of the connector 2. The second end 22 of the connector 2 is at least partially inserted into the housing 1 and movably connected to the housing 1. The linear transducer 8 is disposed in the housing 1 and is connected to the second end 22 of the connector 2. The linear transducer 8 is used to output a linearly arranged focusing area. The external drive mechanism 7 is used to drive the linear transducer 8 to move spirally in a first direction through the connector 2.

[0030] In this embodiment, the housing 1 is used to house the linear transducer 8. A sound-conducting liquid can be injected into the housing 1 to conduct the ultrasonic waves emitted by the linear transducer 8. The first end 21 of the connector 2 is connected to an external drive mechanism 7 outside the housing 1, and the second end 22 of the connector 2 extends into the housing 1 and is connected to the linear transducer 8 inside the housing 1. The external drive mechanism 7 drives the connector 2 to move the linear transducer 8 helically along a first direction. The connector 2 is movably connected to the housing 1 so that the connector 2 can move helically relative to the housing 1. Simultaneously, the ultrasonic waves output by the linear transducer 8 form a linearly arranged focusing area. Thus, the focal points output by the linear transducer 8 can form a three-dimensional focal region, greatly increasing the treatment range of the treatment head 100 and improving its treatment efficiency. The focusing area can consist of multiple linearly arranged focal points, or it can be a linear focal area directly emitted by the linear transducer 8.

[0031] In practical implementation, the external drive mechanism 7 in this embodiment can be a rotary telescopic motor, which can directly drive the connector 2 to move the linear transducer 8 in a spiral motion. The connector 2 can be rod-shaped or column-shaped, and the first direction can be the axial direction of the connector 2. The linear transducer 8 can be an ultrasonic transducer with piezoelectric ceramics arranged in a tile-like shape, which can focus ultrasonic waves to form a linear focal spot. In this application, the first direction is as follows: Figure 1 As shown in the X direction.

[0032] Understandably, the housing 1 also has a sound-transmitting opening, and a sound-transmitting membrane is installed at the sound-transmitting opening. During treatment, the end of the housing 1 with the sound-transmitting opening is fitted to the skin. Driven by the external drive mechanism 7, the connector 2 drives the linear transducer 8 to rotate while moving closer to or further away from the sound-transmitting opening along the first direction. In this way, the linear transducer 8 can perform reciprocating spiral motion along the first direction to continuously form a three-dimensional focal zone, resulting in a better treatment effect.

[0033] In one embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the treatment head 100 also includes a guide 3, which is mounted on the housing 1. The connector 2 is movably connected to the guide 3, and the guide 3 is used to guide the connector 2 to move spirally in a first direction.

[0034] In this embodiment, the connecting member 2 is movably connected to the guide member 3, so that the connecting member 2 can move helically relative to the guide member 3 under the guidance of the guide member 3. The guide member 3 allows the connecting member 2 to move helically under the drive of a rotary motor or a telescopic motor.

[0035] Understandably, the helical movement of the connector 2 can be a combination of rotational and linear movement. During treatment, the positions of the guide 3 and the housing 1 remain fixed. The external drive mechanism 7 can be a rotary motor. The first end 21 of the connector 2 is connected to the drive shaft 71 of the rotary motor. The rotary motor drives the connector 2 to rotate, causing the connector 2 to rotate relative to the guide 3. Under the guidance of the guide 3, the connector 2 will move helically along the guide trajectory of the guide 3. A guide structure can be provided outside the housing 1, which allows the rotary motor to move linearly in the first direction, but limits the rotary motor in the circumferential direction, preventing it from rotating. The external drive mechanism 7 can also be a telescopic motor, which drives the connector 2 to move linearly, causing the connector 2 to move linearly relative to the guide 3. Under the guidance of the guide 3, the connector 2 will move helically along the guide trajectory of the guide 3. The first end 21 of the connector 2 is rotatably connected to the drive shaft 71 of the telescopic motor. Driven by a rotary motor or telescopic motor, the connector 2 can drive the linear transducer 8 to move in a reciprocating spiral motion along the first direction.

[0036] In actual implementation, the guide member 3 can be located inside or outside the housing 1, and can guide the connector 2 in either case. The pitch of the helical movement of the linear transducer 8 driven by the connector 2 can be set according to the actual treatment needs.

[0037] In one embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the connector 2 is provided with a first mating part 23, and the guide 3 is provided with a second mating part 31. The first mating part 23 and the second mating part 31 are movably connected. The connector 2 is used to move spirally relative to the guide 3 in a first direction through the first mating part 23 and the second mating part 31.

[0038] Figure 2 for Figure 1 A cross-sectional view after rotating the entire structure by 90 degrees. In this embodiment, the second mating part 31 can be a helical guide rail; see the attached diagram for details. Figure 2 It demonstrates the design of a spiral guide rail, which can be arranged along the surface of the guide member 3; the first mating part 23 is movably disposed in the spiral guide rail, for details please refer to Figure 1 This demonstrates the state of the first mating part 23 within the spiral guide rail. When the connecting member 2 rotates, the first mating part 23 can move along the spiral guide rail, thereby achieving the spiral lifting and lowering of the linear transducer 8. Driven by the external drive mechanism 7, the connecting member 2 moves the first mating part 23. Due to the limiting engagement of the first mating part 23 and the second mating part 31, the connecting member 2 moves along the spiral guide rail. ， The helical axis of the helical guide is set along the first direction.

[0039] Alternatively, the first mating part can be a spiral guide rail, and the second mating part 31 can be movably disposed in the spiral guide rail. The second mating part 31 can move relative to the connecting member 2 along the spiral guide rail. During treatment, the second mating part 31 is in a fixed state, while the first mating part will actually move spirally.

[0040] In actual implementation, the first mating part 23 and the second mating part 31 can be threaded together, so that the connecting member 2 can move helically relative to the guide member 3 in the first direction under the action of the thread. Optionally, the first mating part 23 is a threaded protrusion and the second mating part 31 is a threaded groove, or the second mating part 31 is a threaded protrusion and the first mating part 23 is a threaded groove, thus realizing the helically guiding of the connecting member 2 by the guide member 3.

[0041] In one embodiment of this utility model, such as Figure 1 and Figure 2As shown, the first mating part 23 is a pin, the second mating part is a groove, the pin is at least partially located in the groove and is adapted to slide along the opening direction of the groove; or, the first mating part 23 is a pin, the second mating part 31 is an opening, the pin is at least partially located in the opening and is adapted to slide along the opening direction of the opening.

[0042] In this embodiment, the second mating part can be a spirally arranged groove. The guide member 3 guides the connector 2 through the limiting engagement between the groove and the pin. Under the drive of the external drive mechanism 7, the pin moves along the groove opening, so the connector 2 moves spirally in the first direction. The second mating part 31 can also be a spirally arranged opening, which can also achieve the same guiding effect. It can be understood that the groove is recessed on the connector 2 and does not penetrate the side wall of the connector 2, while the opening penetrates the side wall of the connector 2.

[0043] In actual implementation, the pin can be threaded or engaged with the connector 2. The connector 2 has a threaded hole or engaging hole corresponding to the pin. When the second mating part 31 is an open hole, the threaded hole or engaging hole can be aligned with the open hole first, and then the pin can be inserted through the open hole and into the threaded hole or engaging hole to complete the installation of the pin. Multiple pins can also be provided on the connector 2, and all multiple pins are movably connected to the second mating part 31 to improve the uniformity of force on the connector 2, making the connector 2 more stable when driving the linear transducer 8 to move spirally.

[0044] Optionally, the first mating part is a spiral groove or opening, and the second mating part is a pin, so that the connector 2 can also move spirally under the guidance of the guide 3.

[0045] In one embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the guide 3 has a hollow structure and is sleeved on the connector 2.

[0046] In this embodiment, the second mating part 31 is disposed on the inner wall of the guide member 3, and the connector 2 passes through the guide member 3. Through the limiting engagement of the first mating part 23 and the second mating part 31, the connector 2 is movably connected to the guide member 3. This saves the installation space of the guide member 3 and the connector 2, which is beneficial to reducing the size of the treatment head 100. Optionally, the guide member 3 is cylindrical.

[0047] In actual implementation, the inner wall of the guide member 3 is provided with a spiral groove or opening. The connector 2 passes through the guide member 3 and is coaxially arranged with the guide member 3. There is a certain gap between the connector 2 and the inner wall of the guide member 3 to avoid excessive resistance when the connector 2 moves relative to the guide member 3. A pin is provided on the side wall of the connector 2. The pin extends from the groove opening or the opening of the opening and abuts against the groove wall or the opening wall for positioning.

[0048] In one embodiment of this utility model, such as Figure 1 and Figure 2 As shown, a limiting groove 12 is provided on the housing 1, and the guide member 3 includes an annular protrusion structure 32, which is confined in the limiting groove 12.

[0049] In this embodiment, the annular protrusion structure 32 increases the contact area between the guide member 3 and the housing 1, preventing the guide member 3 from wobbling when the connecting member 2 moves relative to it. This improves the stability of the guide member 3 when guiding the connecting member 2, ensuring the reliability of the connecting member 2 driving the linear transducer 8 in helical movement. Simultaneously, the annular protrusion structure 32 also increases the connection area between the guide member 3 and the housing 1, facilitating the connection between them.

[0050] In actual implementation, the annular protrusion structure 32 can be installed in the limiting groove 12 by means of screw connection or snap-fit ​​connection. Optionally, the groove wall of the limiting groove 12 can be provided with a protrusion, and the annular protrusion structure 32 has a recess, with the protrusion limited within the recess, so as to realize the positioning and installation of the guide member 3, and at the same time further prevent the guide member 3 from rotating when guiding the connecting member 2, thus affecting the guiding effect of the guide member 3. Optionally, the guide member 3 can be integrally formed with the housing 1.

[0051] In one embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the treatment head 100 also includes a waterproof bearing 4, which is mounted on the housing 1 and located between the housing 1 and the connector 2.

[0052] Understandably, the housing 1 is provided with a through hole for the connector 2 to pass through. The second end 22 of the connector 2 passes through the through hole and extends into the housing 1 to connect with the linear transducer 8. In order to improve the smoothness of the movement of the connector 2 relative to the housing 1 and to avoid leakage at the through hole, a waterproof bearing 4 is installed on the housing 1 at the position corresponding to the through hole. The connector 2 passes through both the through hole and the waterproof bearing 4, thus achieving the effect of preventing leakage.

[0053] In practical implementation, the waterproof bearing 4 can be installed inside the housing 1. The waterproof bearing 4 has excellent waterproof properties, preventing the sound-conducting medium inside the housing 1 from entering the interior of the waterproof bearing 4, thus ensuring the normal operation of the waterproof bearing 4 within the sound-conducting medium. The housing 1 is provided with a mounting groove 13 corresponding to the waterproof bearing 4 to facilitate the positioning and installation of the waterproof bearing 4.

[0054] In actual implementation, the housing 1 consists of a top cover and an outer shell. A through-hole, waterproof bearing 4, guide 3, and connector 2 are located on the top cover. The second end 22 of the connector 2 is connected to the linear transducer 8. After installation, the top cover and outer shell are combined, thus completing the assembly of the treatment head 100. Optionally, the linear transducer 8 is mounted on the second end 22 of the connector 2 via a transducer bracket, and the second end 22 of the connector 2 is connected to the transducer bracket.

[0055] In one embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the treatment head 100 also includes a first one-way bearing 5 and a second one-way bearing 6. The first one-way bearing 5 and the second one-way bearing 6 are installed on the first end 21 of the connector 2, and the rotation directions of the first one-way bearing 5 and the second one-way bearing 6 are opposite. The external drive mechanism 7 is used to detachably connect to the connector 2 through the first one-way bearing 5 and the second one-way bearing 6.

[0056] In this embodiment, the external drive mechanism 7 is a rotary motor. The output shaft of the rotary motor is detachably mounted in the first one-way bearing 5 and the second one-way bearing 6. It is understood that a one-way bearing can only rotate freely in one direction, but can transmit force and torque in the opposite direction. Therefore, the rotary motor is connected to the first end 21 of the connector 2 through the first one-way bearing 5 and the second one-way bearing 6, which can drive the connector 2 to rotate forward and backward, and also prevent the connector 2 from reversing when the rotary motor decelerates or stops. Under the action of the first one-way bearing 5 and the second one-way bearing 6, the connector 2 can be suspended at any position on the helical movement trajectory, so that the linear transducer 8 can treat a specific depth under the patient's skin.

[0057] In this embodiment, the first end 21 of the connector 2 is provided with a receiving groove 211, and the first one-way bearing 5 and the second one-way bearing 6 are coaxially installed in the receiving groove 211 and connected to the connector 2.

[0058] In actual implementation, the external drive structure is a rotary motor or telescopic motor with an encoder. The encoder can monitor and adjust the rotation angle, rotation speed and rotation direction of the rotary motor in real time. At the same time, the encoder can also set the reciprocating rotation of the rotary motor. When the pin of the connector 2 reaches the edge of the spiral guide rail of the guide 3, the rotary motor can switch the rotation direction. In this way, the connector 2 can drive the linear transducer 8 to move reciprocally in a spiral along the first direction.

[0059] This utility model also proposes a therapeutic device, which includes a handle and a treatment head 100. The specific structure of the treatment head 100 is as described in the above embodiments. Since this therapeutic device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here. The therapeutic device includes a handle and a treatment head 100 as described above. The drive mechanism 7 is disposed in the handle, and the handle and the treatment head 100 are detachably connected. The drive shaft 71 of the drive mechanism 7 is detachably connected to the connector 2.

[0060] In practice, the treatment head 100 is a consumable and needs to be replaced after a period of use. Therefore, the drive mechanism 7 is located inside the handle to reduce the replacement cost of the treatment head 100. When assembling the treatment device, the drive shaft 71 of the drive mechanism 7 needs to be connected to the connector 2, and then the treatment head 100 and the handle are connected.

[0061] Understandably, the handle and treatment head 100 are provided with corresponding positioning structures so that the drive shaft 71 of the drive mechanism 7 can be accurately connected to the connector 2.

[0062] In one embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the drive mechanism 7 is a rotary telescopic motor, and the drive shaft 71 of the rotary drive motor is detachably connected to the connector 2.

[0063] In this embodiment, the rotary telescopic motor integrates rotation and telescopic functions, driving the connecting member 2 to rotate and move along a first direction, which can be combined into helical movement along the first direction. The drive shaft 71 of the rotary telescopic motor can be driven by the rotary motor, while telescopic movement is achieved through a guide and transmission structure. The rotary telescopic motor can also be a combination of a rotary motor and a telescopic motor.

[0064] In actual implementation, the rotary telescopic motor can be a conventional rotary telescopic motor, and no specific limitation is made here.

[0065] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A treatment head, characterized in that, The treatment head comprises: a housing; a connecting member, a first end of the connecting member is adapted to be detachably connected with an external driving mechanism, a second end of the connecting member is at least partially arranged in the housing, and the connecting member is movably connected with the housing; a linear transducer, the linear transducer is arranged in the housing, and the linear transducer is connected with the second end of the connecting member, the linear transducer is used to output a linearly arranged focusing area, and the external driving mechanism is used to drive the linear transducer to move spirally along a first direction through the connecting member.

2. The treatment head of claim 1, wherein the plurality of treatment elements are arranged in a pattern that is substantially symmetrical about a centerline of the treatment head. The treatment head further comprises a guide member, the guide member is mounted on the housing, the connecting member is movably connected with the guide member, and the guide member is used to guide the connecting member to move spirally along the first direction.

3. The treatment head of claim 2, wherein the plurality of treatment elements are arranged in a pattern that is substantially symmetrical about a centerline of the treatment head. The connecting member is provided with a first matching part, the guide member is provided with a second matching part, the first matching part is movably connected with the second matching part, and the connecting member is used to move spirally along the first direction relative to the guide member through the first matching part and the second matching part.

4. The treatment head of claim 3, wherein the first and second treatment heads are configured to be moved in unison. The first matching part is a pin, the second matching part is a groove, the pin is at least partially located in the groove and is adapted to slide along the direction in which the groove is formed; or, the first matching part is a pin, the second matching part is an opening, the pin is at least partially located in the opening and is adapted to slide along the direction in which the opening is formed.

5. The treatment head of claim 3, wherein the first and second treatment heads are configured to be moved in a direction parallel to the longitudinal axis of the treatment head. The guide member has a hollow structure, and the guide member is sleeved on the connecting member.

6. The treatment head of claim 2, wherein the first and second treatment heads are configured to be moved in a direction parallel to the longitudinal axis of the treatment head. The housing is provided with a limiting groove, and the guide member comprises an annular protruding structure, the annular protruding structure is limited in the limiting groove.

7. The treatment head of claim 1, wherein the treatment head is configured to be coupled to a treatment device. The treatment head further comprises a waterproof bearing, the waterproof bearing is mounted on the housing, and the waterproof bearing is located between the housing and the connecting member.

8. The treatment head of claim 1, wherein, The treatment head further comprises a first one-way bearing and a second one-way bearing, the first one-way bearing and the second one-way bearing are mounted on the first end of the connecting member, the rotation directions of the first one-way bearing and the second one-way bearing are opposite, and the external driving mechanism is used to detachably connect with the connecting member through the first one-way bearing and the second one-way bearing.

9. A therapeutic apparatus, characterized by, The therapeutic instrument comprises a handle and the treatment head as claimed in any one of claims 1 to 8, a driving mechanism is arranged in the handle, the handle and the treatment head are detachably connected, and a driving shaft of the driving mechanism is detachably connected with the connecting member.

10. The therapy apparatus of claim 9, wherein, The driving mechanism is a rotary telescopic motor, and a driving shaft of the rotary telescopic motor is detachably connected with the connecting member.

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