Ultrasonic treatment head and ultrasonic treatment instrument

Abstract

The utility model discloses an ultrasonic treatment head and an ultrasonic treatment instrument, and relates to the technical field of medical instruments, the ultrasonic treatment head comprises a housing and a sound transmission assembly, the housing is provided with a treatment end and an installation end, one side of the treatment end of the housing is provided with a positioning groove, and the bottom wall of the positioning groove is provided with a first sound transmission hole; the sound transmission assembly comprises a sound transmission film and a sheet body which are connected with each other, the sheet body is provided with a second sound transmission hole opposite to the first sound transmission hole, one side of the sound transmission assembly is connected with the bottom wall of the positioning groove, and the sound transmission assembly covers the first sound transmission hole. According to the technical scheme provided by the utility model, the sound transmission membrane is firstly fixed with the sheet body and then integrally adhered into the positioning groove, so that the operation steps are simplified, the fixation difficulty of the sound transmission membrane is reduced, and the assembly efficiency of the ultrasonic treatment head is improved.

Description

Technical Field

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

[0002] An ultrasound therapy device is a medical device that uses the mechanical and thermal effects of ultrasound waves to treat diseases. It emits ultrasound waves of specific frequencies and intensities to act on human tissues to achieve therapeutic goals. An ultrasound therapy device generally consists of an ultrasound generator and an ultrasound treatment head. The ultrasound generator is the main unit responsible for generating and controlling ultrasound signals, adjusting the frequency, intensity, and output power. The ultrasound treatment head is the part that directly contacts the patient, responsible for converting electrical signals into ultrasound energy and transmitting it to the treatment area.

[0003] In related technologies, ultrasonic treatment heads typically include an outer shell, an inner shell, and an acoustic membrane. The acoustic membrane is first attached to the inner shell, and then the outer shell is placed over the inner shell. The inner wall of the outer shell and the inner shell hold the acoustic membrane in place. However, for some ultrasonic treatment heads with narrow windows, the space is too small to disassemble the shell into an inner shell and an outer shell. Furthermore, the acoustic membrane is usually a flexible membrane, which presents difficulties in attaching and positioning it during installation. Utility Model Content

[0004] The main purpose of this invention is to provide an ultrasonic therapy head and an ultrasonic therapy device, which aims to reduce the difficulty of installing the acoustic membrane.

[0005] To achieve the above objectives, the ultrasonic therapy head proposed in this utility model includes:

[0006] A housing having a treatment end and a mounting end, wherein a positioning groove is formed on one side of the treatment end of the housing, and a first sound-transmitting hole is formed on the bottom wall of the positioning groove; and

[0007] A sound-permeable component, comprising a sound-permeable membrane and a sheet connected together, the sheet having a second sound-permeable hole opposite to the first sound-permeable hole, one side of the sound-permeable component being connected to the bottom wall of the positioning groove, and the sound-permeable component covering the first sound-permeable hole.

[0008] In one embodiment, the first sound-permeable hole communicates with the second sound-permeable hole, the side of the sheet facing away from the sound-permeable membrane is connected to the bottom wall of the positioning groove, and the sound-permeable membrane covers the second sound-permeable hole; or

[0009] One side of the sound-permeable membrane is connected to the bottom wall of the positioning groove to cover the first sound-permeable hole, and the sheet is connected to the other side of the sound-permeable membrane. The first sound-permeable hole and the second sound-permeable hole are respectively located on both sides of the sound-permeable membrane.

[0010] In one embodiment, the hardness of the sheet is greater than the hardness of the acoustic membrane.

[0011] In one embodiment, the sheet material is PC material.

[0012] In one embodiment, the acoustic membrane at least covers one side of the sheet body facing away from the bottom wall of the positioning groove.

[0013] In one embodiment, the sound-permeable membrane includes a main body segment, a first edge-sealing segment, and a second edge-sealing segment connected in sequence. The main body segment is connected to the side of the sheet body facing away from the bottom wall of the positioning groove and covers the second sound-permeable hole. The first edge-sealing segment is connected to the outer peripheral surface of the sheet body, and the second edge-sealing segment is connected to the side of the sheet body facing the bottom wall of the positioning groove.

[0014] In one embodiment, the sheet is welded to the acoustic membrane; and / or

[0015] The sheet is bonded to the bottom wall of the positioning groove.

[0016] In one embodiment, the thickness of the sound-permeable membrane is A, the thickness of the sheet is B, and the depth of the first sound-permeable hole is C, wherein 15≤B:A≤30, 3≤C:B≤5.

[0017] In one embodiment, the thickness of the acoustic membrane is A, wherein 0.02 mm ≤ A ≤ 0.05 mm; and / or

[0018] The distance from the inner peripheral wall of the second sound-permeable hole to the outer peripheral wall of the sheet is D, where 1.5mm≤D≤2.5mm.

[0019] This utility model also proposes an ultrasonic therapy device, including the ultrasonic therapy head described in any of the above embodiments, wherein the ultrasonic therapy head is electrically connected to the ultrasonic therapy device.

[0020] In this utility model, the shell is the external structure of the ultrasonic treatment head, used to protect the internal components and provide structural support. A positioning groove is provided on the shell for fixing and positioning the sound-transmitting component. A first sound-transmitting hole is provided on the bottom wall of the positioning groove for sound wave transmission. The positioning groove provides a clear installation position for the sound-transmitting membrane, allowing it to be accurately placed in the predetermined position, ensuring the accuracy of sound wave transmission. The sheet provides a stable platform, preventing displacement of the sound-transmitting membrane during the pasting process and enhancing installation stability. By first fixing the sound-transmitting membrane to the sheet and then pasting it as a whole into the positioning groove, the operation steps are simplified, the difficulty of fixing the sound-transmitting membrane is reduced, and the assembly efficiency of the ultrasonic treatment head is improved. Furthermore, during the pasting process, the sheet protects the sound-transmitting membrane from damage, ensuring the flatness of the sound-transmitting membrane on the ultrasonic treatment head and avoiding damage to the sound-transmitting membrane due to direct contact or improper operation. Attached Figure Description

[0021] 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.

[0022] Figure 1 An exploded structural diagram of an embodiment of the ultrasonic therapy head of this utility model is provided;

[0023] Figure 2 A cross-sectional view of an embodiment of the ultrasonic therapy head provided by this utility model;

[0024] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0025] Figure 4 A cross-sectional view of an embodiment of the sound-permeable membrane and sheet body in conjunction with this utility model;

[0026] Figure 5 A cross-sectional view of another embodiment of the sound-permeable membrane and sheet body provided for this utility model.

[0027] Explanation of icon numbers:

[0028] 100. Ultrasonic treatment head; 1. Shell; 11. Positioning groove; 12. First sound-permeable hole; 2. Sound-permeable component; 21. Sound-permeable membrane; 211. Main body section; 212. First edge-binding section; 213. Second edge-binding section; 22. Sheet; 221. Second sound-permeable hole; 222. Outer peripheral surface.

[0029] 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

[0030] 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.

[0031] 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.

[0032] 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.

[0033] This utility model proposes an ultrasonic therapy head 100.

[0034] Please see Figures 1 to 5 In one embodiment of this utility model, the ultrasonic treatment head 100 includes a housing 1 and a sound-transmitting component 2. The housing 1 has a treatment end and a mounting end. A positioning groove 11 is provided on one side of the treatment end of the housing 1, and a first sound-transmitting hole 12 is provided on the bottom wall of the positioning groove 11. The sound-transmitting component 2 includes a sound-transmitting membrane 21 and a sheet 22 connected to each other. The sheet 22 has a second sound-transmitting hole 221 opposite to the first sound-transmitting hole 12. One side of the sound-transmitting component 2 is connected to the bottom wall of the positioning groove 11, and the sound-transmitting component 2 covers the first sound-transmitting hole 12.

[0035] In this utility model, the housing 1 is the external structure of the ultrasonic treatment head 100, used to protect the internal components and provide structural support. The treatment end is the ultrasonic output end, while the mounting end is used to fix the ultrasonic treatment head 100 to the handle of the ultrasonic therapy device. A positioning groove 11 is provided on the housing 1 for fixing and positioning the sound-transmitting component 2. A first sound-transmitting hole 12 is provided on the bottom wall of the positioning groove 11 for sound wave transmission. The positioning groove 11 provides a clear installation position for the sound-transmitting membrane 21, allowing it to be accurately placed in the predetermined position, ensuring the accuracy of sound wave transmission. The sheet 22 provides a stable platform, making it less prone to displacement of the sound-transmitting membrane 21 during the pasting process, thus enhancing the installation stability. The stability of the ultrasonic treatment head 100 is improved by first fixing the acoustic membrane 21 to the sheet 22 and then pasting it into the positioning groove 11. This simplifies the operation steps, reduces the number of times the acoustic membrane 21 is directly manipulated, reduces the difficulty of operation, reduces the difficulty of fixing the acoustic membrane 21, and improves the assembly efficiency of the ultrasonic treatment head 100. During the pasting process, the sheet 22 can protect the acoustic membrane 21 from damage, ensuring the flatness of the acoustic membrane 21 on the ultrasonic treatment head 100 and avoiding damage to the acoustic membrane 21 due to direct contact or improper operation. The acoustic membrane 21 can be set on the side of the sheet 22 close to the bottom wall of the positioning groove 11, or it can be set on the side of the sheet 22 away from the bottom wall of the positioning groove 11. This utility model does not limit this.

[0036] Please see Figure 3 In one embodiment, the first sound-permeable hole 12 is connected to the second sound-permeable hole 221, and the side of the sheet 22 facing away from the sound-permeable membrane 21 is connected to the bottom wall of the positioning groove 11. The sound-permeable membrane 21 covers the second sound-permeable hole 221. The acoustic membrane 21 is fixed to the sheet 22 to form the acoustic component 2. The acoustic component 2 is placed in the positioning groove 11 of the housing 1, so that the side of the sheet 22 facing away from the acoustic membrane 21 is connected to the bottom wall of the positioning groove 11. The acoustic membrane 21 covers the second acoustic hole 221 to ensure that the sound waves can pass smoothly through the acoustic membrane 21. The ultrasound waves are emitted from the transducer of the ultrasound treatment head 100 and enter the acoustic component 2 through the first acoustic hole 12 in the housing 1. The sound waves pass through the second acoustic hole 221 on the sheet 22 and are finally transmitted to the human tissue through the acoustic membrane 21 to achieve the therapeutic effect. By fixing the acoustic membrane 21 to the sheet 22 first and then pasting it into the positioning groove 11 as a whole, the operation steps are simplified, the difficulty of fixing the acoustic membrane 21 is reduced, and the assembly efficiency of the ultrasound treatment head 100 is improved.

[0037] In another embodiment, one side of the acoustic membrane 21 is connected to the bottom wall of the positioning groove 11 to cover the first acoustic hole 12, and the sheet 22 is connected to the other side of the acoustic membrane 21. The first acoustic hole 12 and the second acoustic hole 221 are located on opposite sides of the acoustic membrane 21. The acoustic membrane 21 directly covers the first acoustic hole 12, ensuring that sound waves can pass through the acoustic membrane 21 accurately, thus improving the accuracy of sound wave transmission. The first acoustic hole 12 and the second acoustic hole 221 are located on opposite sides of the acoustic membrane 21, ensuring that sound waves can pass through smoothly and reducing energy loss. The fact that one side of the acoustic membrane 21 is directly connected to the bottom wall of the positioning groove 11 and the sheet 22 is connected to the other side of the acoustic membrane 21 makes it less likely for the acoustic membrane 21 to shift during installation, further enhancing the stability of the acoustic membrane 21 installation.

[0038] To facilitate the installation of the flexible acoustic membrane 21, in one embodiment of this invention, the sheet 22 has a higher hardness than the acoustic membrane 21. The harder sheet 22 prevents the acoustic membrane 21 from deforming during installation, ensuring the membrane maintains its designed shape and function. The higher hardness of the sheet 22 also aids in the precise positioning of the acoustic membrane 21, reducing installation errors and making it easier to fix and position, simplifying the installation process and improving the overall assembly accuracy. Appropriate hardness can also optimize acoustic impedance matching, further enhancing the transmission of sound waves from the acoustic membrane 21 to the treatment area. The sheet 22 can be made of PVC, PC, or PMMA material; this invention does not limit the choice of material.

[0039] Specifically, in one embodiment of this utility model, the sheet 22 is made of PC material. PC material has good heat resistance, can withstand high temperatures, and is suitable for environments requiring operation at high temperatures; PC material is generally considered biocompatible and suitable for contact with the human body; PC material can be processed into complex shapes through injection molding, extrusion, etc., facilitating mass production; compared to materials such as metal, PC material is lighter, helping to reduce the overall weight of the device; the acoustic impedance of PC material is similar to that of human tissue, which helps in the effective transmission of sound waves; compared to other high-performance engineering plastics, PC material is generally less expensive, offering better cost-effectiveness.

[0040] To improve the transmission efficiency of sound waves, please refer to [link / reference]. Figure 4 and Figure 5In one embodiment of the present invention, the sound-permeable membrane 21 covers at least one side of the sheet 22 facing away from the bottom wall of the positioning groove 11. The acoustic membrane 21 can be the side of the sheet 22 facing away from the bottom wall of the positioning groove 11, or it can be the outer peripheral surface 222 of the sheet 22, or it can be both the outer peripheral surface 222 of the sheet 22 and the side of the sheet 22 facing the bottom wall of the positioning groove 11. This utility model does not limit this. The acoustic membrane 21 covering at least the side of the sheet 22 facing away from the bottom wall of the positioning groove 11 can reduce the loss of sound waves during transmission, improve the transmission efficiency of sound waves, enhance the structural stability of the entire acoustic component 2, and reduce displacement or deformation caused by vibration or external force. The side wall of the sheet 22 helps to protect the edge of the acoustic membrane 21 and avoid damage during assembly or use. The acoustic membrane 21 covering the side wall of the sheet 22 can reduce the reflection of sound waves inside the treatment head and ensure that more sound energy is transmitted to the treatment area. The full coverage of the acoustic membrane 21 helps to form a more uniform sound field and provide a more consistent treatment effect.

[0041] Further, please refer to Figure 5 In one embodiment of the present invention, the sound-permeable membrane 21 includes a main body segment 211, a first edge-covering segment 212, and a second edge-covering segment 213 connected in sequence. The main body segment 211 is connected to the side of the sheet 22 facing away from the bottom wall of the positioning groove 11 and covers the second sound-permeable hole 221. The first edge-covering segment 212 is connected to the outer peripheral surface 222 of the sheet 22, and the second edge-covering segment 213 is connected to the side of the sheet 22 facing the bottom wall of the positioning groove 11. The main body section 211 is connected to the side of the sheet 22 facing away from the bottom wall of the positioning groove 11, ensuring the sound wave transmission of the sound-permeable membrane 21. The first edge-sealing section 212 is connected to the outer peripheral surface 222 of the sheet 22, ensuring a good seal and connection between the sound-permeable membrane 21 and the sheet 22, thereby improving the sound wave transmission efficiency. The second edge-sealing section 213 is connected to the side of the sheet 22 facing the bottom wall of the positioning groove 11. This connection further enhances the stability of the sound-permeable membrane 21, ensuring that it will not shift or deform during use. The design of the first edge-sealing section 212 and the second edge-sealing section 213 helps to form a sealed structure, reducing sound wave leakage during transmission. This design ensures that more sound energy is effectively transmitted to the treatment area. By connecting the edge section of the acoustic membrane 21 to key parts of the sheet 22, sound wave reflection and scattering can be reduced, improving sound wave transmission efficiency. The edge design of the acoustic membrane 21 enhances the stability of the overall structure, reduces deformation caused by external vibration or pressure changes, and ensures consistent treatment effects. The design of the first edge section 212 and the second edge section 213 makes the installation process of the acoustic membrane 21 simpler, allowing operators to more easily fix the membrane in place and reducing installation errors. The edge design of the acoustic membrane 21 can also adapt to sheets 22 of different shapes and sizes, increasing the product's applicability.

[0042] Please see Figure 3 In one embodiment of this utility model, the second sound-permeable hole 221 and the first sound-permeable hole 12 are coaxially arranged. The coaxial arrangement of the second sound-permeable hole 221 and the first sound-permeable hole 12 ensures that sound waves maintain good alignment and transmission path when transmitted from the sound-permeable membrane 21 through the first sound-permeable hole 12 to the second sound-permeable hole 221. The coaxial arrangement reduces reflection and scattering of sound waves during transmission, ensuring that sound waves can be effectively transmitted from the first sound-permeable hole 12 to the second sound-permeable hole 221, thereby improving the transmission efficiency of sound waves. Due to the alignment of the two sound-permeable holes, the propagation path of sound waves is more direct, reducing signal loss and ensuring the stability of the treatment effect. The coaxial design makes the structure of the ultrasonic treatment head 100 simpler, reducing complex guiding and support structures and improving the overall aesthetic design. Because the two holes are coaxial, processing and alignment are easier during manufacturing, simplifying the assembly process and reducing production costs. The coaxial arrangement helps to form a better seal at the connection, reducing potential leakage risks and ensuring the effective transmission of ultrasonic waves.

[0043] Furthermore, in one embodiment of this utility model, the sheet 22 is welded to the acoustic membrane 21; the sheet 22 is also bonded to the bottom wall of the positioning groove 11. Welding is a method of connecting two or more components together by melting them at high temperature. Welding the sheet 22 to the acoustic membrane 21 provides very strong connection strength, suitable for withstanding high pressure and mechanical stress. Welding can form a good seal, preventing gas and liquid leakage and ensuring the stability of the acoustic membrane 21 during use. Bonding is a connection method that uses an adhesive to fix two materials together. Bonding can be used to connect different materials, including plastics, metals, and composite materials. The bonding process is relatively simple, easy to automate, and suitable for large-scale production. Bonding the sheet 22 to the bottom wall of the positioning groove 11 can better disperse stress, reduce stress concentration, and reduce the risk of material damage.

[0044] In one embodiment of this utility model, the thickness of the sound-permeable membrane 21 is A, the thickness of the sheet 22 is B, and the depth of the first sound-permeable hole 12 is C, wherein 15≤B:A≤30, 3≤C:B≤5. The thickness ratio of the sheet 22 to the acoustic membrane 21 is set to ensure the rigidity and strength of the materials. If the B:A ratio is too small, the thickness of the sheet 22 will not provide sufficient rigidity and strength, which may cause the acoustic membrane 21 to be unstable during use, affecting the transmission effect of sound waves. If the B:A ratio is too large, the thickness of the sheet 22 may occupy too much space, resulting in an increased size of the device and affecting the overall compactness of the design. If the C:B ratio is too small, the depth of the first acoustic hole 12 may be insufficient, which may reduce the transmission efficiency of sound waves and affect the treatment effect. If the C:B ratio is too large, the depth of the acoustic hole may be too large, which may lead to structural instability and increase the amount of material used and the cost. By setting the ratio relationship between the thickness A of the acoustic membrane 21, the thickness B of the sheet 22, and the depth C of the first acoustic hole 12, the design can be optimized and the overall effect of the device can be improved while ensuring the performance, strength, and spatial adaptability of the ultrasonic treatment head 100.

[0045] In one embodiment of this utility model, the thickness of the sound-permeable membrane 21 is A, wherein 0.02mm≤A≤0.05mm; the distance from the inner peripheral wall of the second sound-permeable hole 221 to the outer peripheral wall of the sheet 22 is D, wherein 1.5mm≤D≤2.5mm. The thickness of the sound-permeable membrane 21 directly affects the transmission efficiency of sound waves. A thinner sound-permeable membrane 21 can reduce the attenuation of sound waves during transmission and improve the transmittance of sound waves. However, the sound-permeable membrane 21 needs to have sufficient mechanical strength to withstand pressure changes and possible physical impacts during use. Therefore, the thickness of the sound-permeable membrane 21 is also related to its durability and service life. A moderate thickness helps to extend the service life of the sound-permeable membrane 21. An appropriate distance helps the sound waves to focus between the sound-permeable membrane 21 and the sheet 22, improving the energy concentration of the sound waves. The distance D between the inner peripheral wall of the second acoustic aperture 221 and the outer peripheral wall of the sheet 22 is also related to the structural stability of the ultrasonic treatment head 100. An appropriate distance can ensure that the acoustic membrane 21 does not undergo excessive deformation under the action of sound waves, thus maintaining structural stability. The distance D is also important for acoustic impedance matching. An appropriate distance helps sound waves to be smoothly transmitted from the acoustic membrane 21 to the sheet 22, reducing sound wave reflection and scattering. The thickness of the acoustic membrane 21 and the distance between the second acoustic aperture 221 and the sheet 22 are key parameters in the design of the ultrasonic treatment head 100. They have a direct impact on the sound wave transmission efficiency, the structural stability of the treatment head, and the treatment effect.

[0046] This utility model also proposes an ultrasonic therapy device, which includes an ultrasonic therapy head 100. The specific structure of the ultrasonic therapy head 100 is as described in the above embodiments. Since this ultrasonic therapy 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, which will not be described in detail here. The ultrasonic therapy head 100 is electrically connected to the ultrasonic therapy device. The part of the ultrasonic therapy head 100 that directly contacts the patient is responsible for converting electrical signals into ultrasonic energy and transmitting it to the treatment area. The ultrasonic therapy head 100 is connected to other components of the ultrasonic therapy device through electrical connections, ensuring that electrical signals can be transmitted stably and efficiently to the ultrasonic therapy head 100, enabling it to work normally. The ultrasonic therapy head 100 can be a periocular treatment head, an oral treatment head, etc., and this utility model does not limit it in this way.

[0047] 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. An ultrasonic therapy head, characterized in that, include: The housing has a treatment end and an installation end. A positioning groove is provided on one side of the treatment end of the housing, and a first sound-transmitting hole is provided on the bottom wall of the positioning groove. and A sound-permeable component, comprising a sound-permeable membrane and a sheet connected together, the sheet having a second sound-permeable hole opposite to the first sound-permeable hole, one side of the sound-permeable component being connected to the bottom wall of the positioning groove, and the sound-permeable component covering the first sound-permeable hole.

2. The ultrasonic treatment head as described in claim 1, characterized in that, The first sound-permeable hole is connected to the second sound-permeable hole, the side of the sheet facing away from the sound-permeable membrane is connected to the bottom wall of the positioning groove, and the sound-permeable membrane covers the second sound-permeable hole; or One side of the sound-permeable membrane is connected to the bottom wall of the positioning groove to cover the first sound-permeable hole, and the sheet is connected to the other side of the sound-permeable membrane. The first sound-permeable hole and the second sound-permeable hole are respectively located on both sides of the sound-permeable membrane.

3. The ultrasonic therapy head as described in claim 1, characterized in that, The hardness of the sheet is greater than that of the sound-permeable membrane.

4. The ultrasonic therapy head as described in claim 3, characterized in that, The sheet material is PC.

5. The ultrasonic therapy head as described in claim 1, characterized in that, The acoustic membrane at least covers one side of the sheet body facing away from the bottom wall of the positioning groove.

6. The ultrasonic treatment head as described in claim 5, characterized in that, The sound-permeable membrane includes a main body segment, a first edge-sealing segment, and a second edge-sealing segment connected in sequence. The main body segment is connected to the side of the sheet body facing away from the bottom wall of the positioning groove and covers the second sound-permeable hole. The first edge-sealing segment is connected to the outer peripheral surface of the sheet body, and the second edge-sealing segment is connected to the side of the sheet body facing the bottom wall of the positioning groove.

7. The ultrasonic therapy head as described in claim 1, characterized in that, The sheet is welded to the acoustic membrane; and / or The sheet is bonded to the bottom wall of the positioning groove.

8. The ultrasonic therapy head as described in claim 1, characterized in that, The thickness of the sound-permeable membrane is A, the thickness of the sheet is B, and the depth of the first sound-permeable hole is C, wherein 15≤B:A≤30, 3≤C:B≤5.

9. The ultrasonic therapy head as described in claim 1, characterized in that, The thickness of the acoustic membrane is A, wherein 0.02 mm ≤ A ≤ 0.05 mm; and / or The distance from the inner peripheral wall of the second sound-permeable hole to the outer peripheral wall of the sheet is D, where 1.5mm≤D≤2.5mm.

10. An ultrasonic therapy device, characterized in that, Includes an ultrasonic treatment head as described in any one of claims 1 to 9, wherein the ultrasonic treatment head is electrically connected to the ultrasonic therapy device.

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