Ultrasonic treatment head and treatment device

Abstract

The present application discloses an ultrasonic treatment head and a treatment device. The ultrasonic treatment head includes a housing having a first sound passage hole covered with a sound transmission membrane, a cap fixed to the housing and forming a sealed accommodation cavity together with the sound transmission membrane, an ultrasonic transducer provided in the accommodation cavity with the sound generating unit facing the first sound passage hole, and a compensation member provided in the accommodation cavity and defining a buffer chamber together with the cavity wall of the accommodation cavity for canceling the pressure change in the accommodation cavity during the operation of the sound generating unit.

Description

Technical Field

[0001] This application claims the priority of Chinese patent applications with application numbers 202221327964.3, 202221318244.0 filed on May 27, 2022, and 202223607441.7 filed on December 30, 2022, the entire contents of which are incorporated herein by reference. This application relates to the technical field of medical devices, and particularly to an ultrasonic treatment head and a treatment device.

Background Art

[0002] In ultrasonic treatment, the ultrasonic treatment head is an important component of a treatment device that mainly converts an electroacoustic signal through an ultrasonic transducer and radiates the converted sound wave to the human body through a probe treatment window to achieve the treatment purpose.

[0003] In order to ensure the normal operation of the ultrasonic transducer, a sound guiding medium is provided in the probe to absorb the heat generated by the ultrasonic transducer during operation, thereby preventing the ultrasonic transducer from burning out. However, since the sound guiding medium absorbs heat and expands, it is easy to break the sound passing membrane due to the expansion, damage the ultrasonic treatment head, and reduce the service life and performance of the ultrasonic treatment head.

Summary of the Invention

Problems to be Solved by the Invention

[0004] The main object of this application is to provide an ultrasonic treatment head that extends the service life of the ultrasonic treatment head and improves the safety of the ultrasonic treatment head.

Means for Solving the Problems

[0005] To achieve the above object, the ultrasonic treatment head according to this application includes an outer housing including an operating space and a first sound passing hole, and an inner cap provided with an assembly hole, A second sound hole and a connection end are provided. The inner cap is fixedly connected to the connection end, defines an accommodation cavity together with the inner housing, and forms a sound conduction channel through the first sound hole and the second sound hole. An inner housing, A sound conduction film covering the second sound hole, A buffer cavity is provided, has a stretchable structure, is provided in the accommodation cavity, and further has an opening. The opening is fixedly connected to the assembly hole, and includes a buffer member that communicates the buffer cavity with the operation space. An ultrasonic transducer is provided in the accommodation cavity, and a sound conduction medium is filled. There is a gap between the ultrasonic transducer and the second sound hole. The sound conduction channel is used to transmit acoustic waves generated by the ultrasonic transducer. The inner cap, the inner housing, the sound conduction film, and the buffer member are located in the operation space.

[0006] In one embodiment, the buffer member is provided with one or more pleat structures.

[0007] In one embodiment, the buffer member is made of a silicone rubber material.

[0008] In one embodiment, a first flange is provided on the buffer member. The first flange is provided surrounding the opening. The first flange is fixedly connected to the periphery of the assembly hole.

[0009] In one embodiment, the first flange is connected to the surface of the inner cap on the side opposite to the accommodation cavity.

[0010] In one embodiment, a limiting groove surrounding the assembly hole is provided on the inner cap. The limiting groove is for placing the first flange.

[0011] In one embodiment, the first flange is provided with an elastic seal annular convex portion on the surface contacting the inner cap.

[0012] In one embodiment, the ultrasonic treatment head is used to press the first flange and includes a sheet material fixedly connected to the inner cap. The sheet material is further provided with exhaust holes, the exhaust holes connect the assembly holes and the opening, and the exhaust holes communicate the buffer cavity and the operation space.

[0013] In one embodiment, the ultrasonic treatment head further includes a seal ring. The inner housing includes a second flange provided surrounding the connection end, the seal ring is placed on the second flange, and the inner cap presses the seal ring and is fixedly connected to the second flange.

[0014] The present application also provides a housing with a first sound hole covered by a sound-permeable membrane, a cap fixed to the housing and forming a sealed accommodation cavity together with the sound-permeable membrane, an ultrasonic transducer provided in the accommodation cavity and facing the first sound hole by the sound-generating unit, a buffer chamber provided in the accommodation cavity and defining, together with the cavity wall of the accommodation cavity, a buffer chamber for canceling the pressure change in the accommodation cavity during the operation of the sound-generating unit Buffer member and proposes an ultrasonic treatment head including the above.

[0015] In one embodiment, the Buffer member is an elastic membrane fixedly connected to the cavity wall of the accommodation cavity and forming the sealed buffer chamber. When the pressure in the accommodation cavity changes, the elastic membrane deforms to compress the air in the buffer chamber.

[0016] In one embodiment, the Buffer memberis an elastic membrane. A channel communicating with the external environment is provided in the cavity wall of the housing cavity. The elastic membrane is fixedly connected to the cavity wall of the housing cavity, forms the buffer chamber communicating with the channel, and when the pressure in the housing cavity changes, the elastic membrane deforms to compress the air in the buffer chamber to the outside.

[0017] In one embodiment, the elastic modulus of the elastic membrane is less than that of the sound-permeable membrane.

[0018] In one embodiment, the Buffer member is provided away from the first sound-permeable hole.

[0019] In one embodiment, the housing includes an inner housing and an outer housing that are fixedly connected. The inner housing is connected to the Buffer member and is hermetically connected to the cap. The outer housing is externally fitted outside the inner housing.

[0020] In one embodiment, a sealing ring is interposed between the inner housing and the cap.

[0021] In one embodiment, the cap includes a bottom cap and a top cap that are fixedly connected. The bottom cap is hermetically connected to the inner housing, and a circuit board is provided in the mounting cavity formed by connecting the top cap and the bottom cap. The circuit board is electrically connected to the ultrasonic transducer.

[0022] In one embodiment, the ultrasonic treatment head further includes a holder with one end fixedly connected to the cap and the other end fixedly connected to the ultrasonic transducer.

[0023] This application also a housing provided with a first sound-permeable hole covered by a sound-permeable membrane, a cap fixed to the housing and forming a sealed housing cavity together with the sound-permeable membrane, It is provided in the accommodating cavity and includes an ultrasonic transducer provided in the sound emitting unit opposite to the first sound passage hole. An ultrasonic treatment head is proposed, in which one of the housing and the cap is provided with a compensation mechanism for canceling the pressure change in the accommodating cavity during the operation of the sound emitting unit.

[0024] In one embodiment, the compensation mechanism includes a through hole and an elastic membrane. The elastic membrane covers the through hole, and when the pressure in the accommodating cavity changes, the elastic membrane deforms.

[0025] In one embodiment, the through hole is formed in the housing and is provided away from the first sound passage hole.

[0026] In one embodiment, the housing includes an inner housing and an outer housing that are fixedly connected. The inner housing has the through hole formed therein, is sealed and fixed to the cap, and the outer housing is externally fitted outside the inner housing.

[0027] In one embodiment, the through hole is formed in the cap.

[0028] In one embodiment, an injection hole closed by a sealing plug is formed in the cap, and the through hole is formed in the sealing plug.

[0029] In one embodiment, the sealing plug includes a plug body, a support skeleton provided on the outer periphery of the plug body, and a through hole formed in the plug body. The support skeleton is sealed and connected to the injection hole. The surface of the support skeleton is covered with an elastic layer.

[0030] In one embodiment, the compensation mechanism includes an elastic membrane. The elastic membrane is provided in the housing and is fixedly connected to the cap. The elastic membrane, the cap, and the sound passage membrane define the accommodating cavity.

[0031] In one embodiment, a compensation hole is further formed in the cap, the compensation mechanism includes an elastic membrane, the elastic membrane is sealingly connected to the compensation hole, and the elastic membrane, the cap, and the sound transmission membrane define the accommodation cavity.

[0032] The present application also proposes a treatment device including the ultrasonic treatment head described above and a handle removably connected to the ultrasonic treatment head.

Advantages of the Invention

[0033] In the technical solution of the present application, an ultrasonic transducer is provided, and a telescopic buffer member of the buffer cavity is provided in the accommodation cavity filled with the sound guiding medium, thereby indirectly providing a buffer space for the volume expansion of the sound guiding medium. Also, Buffer member by partitioning the accommodation cavity to form a cavity wall of the accommodation cavity and a buffer chamber, and providing a compensation mechanism for canceling the pressure change in the accommodation cavity during the operation of the sound emitting unit on one of the housing and the cap, it is possible to avoid the pressure in the accommodation cavity concentrating on and acting on the sound transmission membrane to break the sound transmission membrane, thereby extending the service life of the ultrasonic treatment head and improving the use safety of the ultrasonic treatment head and the effectiveness of ultrasonic treatment.

Brief Description of the Drawings

[0034] To more clearly explain the technical solutions in the embodiments of the present application or the prior art, the following briefly describes the drawings necessary for the description of the embodiments or the prior art. However, the drawings in the following description are only one embodiment of the present application, and it is obvious to those skilled in the art that other drawings can be obtained based on the configurations shown in these drawings without creative effort.

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Mode for Carrying Out the Invention

[0035] The achievement of the object, functional features and advantages of the present application will be further described with reference to the drawings in conjunction with the embodiments. Hereinafter, with reference to the drawings in the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. However, it is obvious that the described embodiments are only a part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the present application.

[0036] Note that all directional indications (for example, up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement, etc. between each component in a specific posture (as shown in the drawings). When the specific posture changes, the directional indications also change accordingly.

[0037] In this application, unless otherwise explicitly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" may be a fixed connection, a detachable connection, or integral, and may be a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, a contact, a communication inside two elements, or an interaction relationship between two elements, unless otherwise explicitly limited. The meaning of the above terms in this application can be understood by those skilled in the art according to specific situations.

[0038] In addition, in the embodiments of this application, when there are descriptions related to "first", "second", etc., such descriptions of "first", "second", etc. are only for the purpose of explanation, and it cannot be understood that they indicate, imply, or imply the relative importance or the number of the indicated technical features. Therefore, the features limited by "first" and "second" may implicitly include at least one feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel modes. Taking "A and / or B" as an example, it includes the A mode, the B mode, or the mode in which A and B are satisfied simultaneously. In addition, the technical solutions between the embodiments may be combined with each other, but it must be based on what can be realized by those skilled in the art. When the combination of technical solutions is contradictory to each other or cannot be realized, such a combination of technical solutions does not exist and should be considered not included in the protection scope claimed in this application.

[0039] In the technical solution of this application, in the ultrasonic treatment head, an ultrasonic transducer is provided, and a telescopic buffer member of a buffer cavity is provided in a housing cavity filled with a sound guiding medium, so as to indirectly provide a buffer space for the volume expansion of the sound guiding medium, thereby preventing the sound guiding medium from absorbing heat and expanding to break the sound transmission film, improving the use safety of the ultrasonic treatment head, and extending the service life of the ultrasonic treatment head.

[0040] Referring to FIGS. 1 to 4, in one embodiment of this application, the ultrasonic treatment head 100 is An outer housing 110 including an operation space 114 and a first sound hole 115, An inner cap 130 provided with an assembly hole 131, A second sound hole 121 and a connection end 122 are provided. The inner cap 130 is fixedly connected to the connection end 122, and together with the inner housing 120, defines an accommodation cavity. A sound channel is formed by the first sound hole 115 and the second sound hole 121. An inner housing 120, A sound transmission membrane 160 covering the second sound hole 121, A buffer member 140 provided with a buffer cavity 141, having a stretchable structure, provided in the accommodation cavity, further provided with an opening 142, the opening 142 being fixedly connected to the assembly hole 131, and communicating the buffer cavity 141 with the operation space 114.

[0041] An ultrasonic transducer 150 is provided in the accommodation cavity and filled with a sound guiding medium. There is a gap between the ultrasonic transducer 150 and the second sound hole 121. The sound channel is used to transmit acoustic waves generated by the ultrasonic transducer 150. The inner cap 130, the inner housing 120, the sound transmission membrane 160, and the buffer member 140 are located in the operation space 114.

[0042] In one embodiment, when the ultrasonic transducer 150 operates, the sound guiding medium absorbs heat generated by the ultrasonic transducer 150 and expands, thereby compressing the buffer member 140, reducing the volume of the buffer cavity 141, and discharging the gas in the cavity through the opening 142 and the assembly hole 131 into the aforementioned operation space 114. The reduction in the volume of the buffer member 140 provides a buffer space in the accommodation cavity for accommodating the expanded volume of the sound guiding medium, thereby avoiding the sound guiding medium from expanding and breaking the sound transmission membrane 160, and extending the service life of the ultrasonic treatment head 100.

[0043] A predetermined interval is required between the ultrasonic transducer 150 and the second sound passage hole 121 for the acoustic waves to gather and transmit. In this way, the acoustic waves radiated from the ultrasonic transducer 150, after being radiated from the probe, accurately act on the desired treatment site of the patient. At the same time, the acoustic wave energy is not too large to avoid causing burns to the patient during treatment. A part of the energy of the acoustic waves is consumed by the interval provided between the ultrasonic transducer 150 and the second sound passage hole 121, improving the safety of using the probe.

[0044] Furthermore, in one embodiment, one or more locking bases 123 are provided in the inner housing 120. The locking base 123 is spaced from the second sound passage hole 121. The locking base 123 is fixedly connected to the ultrasonic transducer 150 and plays a role in restricting the ultrasonic transducer 150. In particular, in the inner housing 120, one or more relief grooves 124 for placing the ultrasonic transducer 150 are further provided. As shown in FIG. 2, the relief groove 124 is located above the locking base 123 and is provided on the inner peripheral edge of the inner housing 120. Thereby, while avoiding the ultrasonic transducer 150 being restricted in the space of the inner housing 120 due to excessive volume, it also plays a role of a predetermined restriction on the ultrasonic transducer 150.

[0045] Referring to FIG. 1, the above-mentioned outer housing 110 is divided into two parts, an upper outer housing 111 and a lower outer housing 112, and these two are fixedly connected by an engagement groove structure 113. Such a connection method makes it easier to mount the members in the operating space 114. The above-mentioned cap is further provided with a wire through hole 132 and an injection hole 133. The wire through hole 132 is for passing the wire for connecting the ultrasonic transducer 150 to the outside. After passing the wire, it is sealed by injecting adhesive or filling. The injection hole 133 is used for injecting or discharging the sound guiding medium. The inner cap 130 is provided with a sealing plug 134 for sealing the injection hole 133, so that during the operation of the ultrasonic transducer 150, the sound guiding medium absorbs heat and expands, avoiding overflowing from the wire through hole 132 or the sealing hole and corroding the remaining devices in the operating space 114 or damaging the probe.

[0046] In one embodiment, the buffer member 140 is provided with one or more pleat structures. In the operating state of the ultrasonic transducer 150, the sound guiding medium absorbs the heat generated by the ultrasonic transducer 150 and expands, compressing the buffer member 140. In the non-operating state of the ultrasonic transducer 150, the temperature of the sound guiding medium returns, and the buffer member 140 is no longer compressed and returns to its original form. By providing one or more pleat structures on the buffer member 140, it is easy to obtain the effect of the buffer member 140 that "it contracts when compressed and recovers when the compression disappears". The buffer member 140 made of a non-elastic material can also obtain the above effect due to the pleat structure. In this case, the requirements for the material of the buffer member 140 are reduced, and the material cost is lowered.

[0047] Specifically, in another embodiment, the buffer member 140 is made of an elastic material such as rubber. The buffer member 140 made of this material can obtain the effect of "contracting when compressed and recovering when the compression disappears". In the ultrasonic treatment head 100, its function can be stably exerted, and the service life of the ultrasonic treatment head 100 can be extended.

[0048] Specifically, in one embodiment, the buffer member 140 is made of a silicone rubber material. The silicone rubber material has a mature processing process, which is advantageous for reducing material costs and processing costs. The buffer member 140 made of silicone rubber provided with a pleat structure has an elastic deformation ability, so that it can recover to its original form after the sound guiding medium expands and compresses. On the other hand, since the silicone rubber material has heat resistance, when the sound guiding medium receives heat and its temperature rises, the buffer member 140 made of the silicone rubber material will not be deformed or melted by heat, and will have anti-aging ability, and can continuously and stably exert its function within the ultrasonic treatment head 100, and can extend the service life of the ultrasonic treatment head 100.

[0049] In one embodiment, referring to FIG. 4, the buffer member 140 is provided with a first flange 143, the first flange 143 is provided surrounding the opening 142, and the first flange 143 is fixedly connected to the periphery of the assembly hole 131. The first flange 143 increases the contact area for connecting to the periphery of the assembly hole 131, thereby ensuring the stability of the connection between the buffer member 140 and the inner cap 130, while ensuring the sealing performance between the buffer member 140 and the inner cap 130, and preventing the sound guiding medium from expanding and overflowing from the accommodating cavity and flowing into the operating space 114, corroding the internal device or damaging the ultrasonic treatment head 100.

[0050] Referring to this embodiment, the periphery of the first flange 143 and the assembly hole 131 are fixedly connected by screws 190, but it can be understood that the periphery of the first flange 143 and the assembly hole 131 may also be fixedly connected by adhesion, engagement, etc.

[0051] Furthermore, in one embodiment, the first flange 143 is connected to the surface of the inner cap 130 on the side opposite to the receiving cavity. The inner cap 130 is fixedly connected to the inner housing 120 to define a receiving cavity. The buffer member 140 is inserted into the receiving cavity through an assembly hole 131 provided in the inner cap 130. The first flange 143 is connected to the surface on the side opposite to the receiving cavity, whereby the buffer member 140 and the inner cap 130 are fixedly connected. When the buffer member 140 is disposed in the receiving cavity through insertion, the operation is easy. The receiving cavity defined by fixedly connecting the inner housing 120 and the inner cap 130 serves to protect the ultrasonic transducer 150, avoiding the failure of the ultrasonic transducer 150 due to impacts during the assembly process or the like, and ensuring the function of the ultrasonic treatment head 100.

[0052] Based on the above embodiments, a limiting groove 135 surrounding the assembly hole 131 is provided in the inner cap 130, and the limiting groove 135 is for placing the first flange 143. When the ultrasonic treatment head 100 is used, the sound guiding medium expands irregularly due to non-uniform heat, and the buffer member 140 may be distorted or even shaken when a non-uniform force is applied. The limiting groove 135 provided at the periphery of the assembly hole 131 can prevent excessive shaking of the buffer member 140 when a non-uniform force is applied. Also, by providing the limiting groove 135, the overflowing sound guiding medium can be retained in the groove, enhancing the sealing effect between the inner cap 130 and the buffer member 140.

[0053] Furthermore, the limiting groove 135 shown in FIG. 3 may be provided in accordance with the first flange 143, or the limiting groove 135 may be connected to the first flange 143 by interference fit. When the sound guiding medium expands to compress the buffer member 140, the buffer member 140 is stably connected to the inner cap 130 through the interaction between the periphery of the first flange 143 and the periphery of the limiting groove 135. In one embodiment, as shown in FIG. 9, the buffer member 140 includes a waterproof breathable film 145, and the waterproof breathable film 145 is used to seal the assembly hole 131 to prevent moisture from entering the assembly hole 131, and at the same time, ensure the air circulation between the assembly hole 131 and the outside. When the sound guiding medium expands and compresses the air in the transducer internal space, the generated high-pressure air is discharged to the outside through the waterproof breathable film 145. Further, the waterproof breathable film 145 is fixedly connected in the limiting groove 135 provided at the periphery of the assembly hole 131 by means such as adhesion. In one embodiment, as shown in FIG. 10, the buffer member 140 includes a micro relief valve 146, and the micro relief valve 146 is disposed in the assembly hole 131. The micro relief valve 146 is used to seal the assembly hole 131 and at the same time automatically adjust the pressure in the transducer. Further, the micro relief valve 146 is provided with an external thread, and the limiting groove 135 provided at the periphery of the assembly hole 131 is provided with an internal thread, and the micro relief valve 146 and the limiting groove 135 are detachably connected by the engagement of the external thread and the internal thread. In one embodiment, other connecting means such as engagement and welding may also be used between the micro relief valve 146 and the assembly hole 131 / limiting groove 135. In one embodiment, as shown in FIG. 11, the buffer member 140 includes a column piston 147 provided in the assembly hole 131. The column piston 147 is used to adjust the pressure in the transducer. When the pressure in the transducer is high, the column piston 147 moves upward, and when the pressure in the transducer is low, the column piston 147 moves downward to prevent the pressure in the transducer from being too strong and causing damage. Specifically, the column piston 147 is movably fitted into the assembly hole 131 and abuts against the inner wall of the assembly hole 131.

[0054] Furthermore, based on the above embodiments, an elastic seal annular convex portion 144 is provided on the surface of the first flange 143 that contacts the inner cap 130. The buffer member 140 is fixedly connected to the inner cap 130, and the first flange 143 presses the elastic seal annular convex portion 144, thereby improving the sealing performance between the buffer member 140 and the inner cap 130, increasing the frictional force between the two, and making the connection between the two more stable.

[0055] Furthermore, in one embodiment, in order to improve the sealing performance and connection stability between the buffer member 140 and the inner cap 130, the ultrasonic treatment head 100 includes a sheet material 170 that is used to press the first flange 143 and is fixedly connected to the inner cap 130. The sheet material 170 is further provided with exhaust holes 171. The exhaust holes 171 connect the assembly holes 131 and the openings 142, and the exhaust holes 171 communicate the buffer cavity 141 and the operating space 114.

[0056] Furthermore, in one embodiment, in order to improve the sealing performance of the accommodation cavity, the ultrasonic treatment head 100 further includes a seal ring 180. The inner housing 120 includes a second flange 125 provided surrounding the connection end 122. The seal ring 180 is placed on the second flange 125, and the inner cap 130 presses the seal ring 180 and is fixedly connected to the second flange 125.

[0057] Referring to FIGS. 5-6, in this embodiment, the ultrasonic treatment head includes a housing 200, a cap 210, an ultrasonic transducer 150, and Buffer memberand, and the housing 200 is provided with a first sound passage hole 115 covered by a sound transmission membrane 160. The cap 210 is fixed to the housing 200 and, together with the sound transmission membrane 160, forms a sealed accommodation cavity 202. The ultrasonic transducer 150 is provided in the accommodation cavity 202, and the sound generating unit 201 faces the first sound passage hole 115. Buffer member is provided in the accommodation cavity 202 and, together with the cavity wall of the accommodation cavity 202, defines a buffer chamber for canceling the pressure change in the accommodation cavity 202 during the operation of the sound generating unit 201. Thereby, the pressure in the accommodation cavity 202 acts concentratedly on the sound transmission membrane 160, avoiding damaging the sound transmission membrane 160, extending the service life of the ultrasonic treatment head, and improving the use safety of the ultrasonic treatment head and the effectiveness of ultrasonic treatment.

[0058] The ultrasonic transducer 150 includes a sound generating unit 201 and a radiation surface. The radiation surface faces the first sound passage hole 115. Thereby, the first sound passage hole 115 is on the conduction path of ultrasonic waves. The ultrasonic waves generated by the sound generating unit 201 are conducted to the sound transmission membrane 160 through a sound guiding medium, and are easily conducted to the tissue to be treated. Since this path is short, the loss of ultrasonic wave energy is reduced, and the effectiveness of ultrasonic treatment is easily improved.

[0059] The accommodation cavity 202 defined by the housing 200, the cap 210, and the sound transmission membrane 160 is filled with a sound guiding medium. When the sound generating unit 201 of the ultrasonic transducer 150 operates, the temperature in the accommodation cavity 202 rises due to the generated heat. At this time, the sound guiding medium receives the heat and expands. As a result, the pressure in the accommodation cavity 202 changes, that is, the internal pressure also rises. Buffer member divides the accommodation cavity 202 to form a buffer chamber. When the sound guiding medium receives heat and expands, the pressure is mainly Buffer memberActs on it, thereby reducing the influence of the pressure difference. Finally, the change in the internal pressure is absorbed and canceled out, and the pressure acts concentratedly on the sound transmission membrane 160, preventing the sound membrane 160 from being torn and avoiding the conduction medium in the accommodation cavity 202 from flowing out or air from entering the accommodation cavity 202. Here, the conduction medium may be a liquid capable of conducting ultrasonic waves, such as water or oil.

[0060] Since the accommodation cavity 202 is defined by the three components of the housing 200, the cap 210, and the sound transmission membrane 160, in one embodiment, the buffer member is fixed to the housing 200 or the cap 210. Of course, Buffer member A plurality of them may be provided. In this case, they may be provided on both the housing 200 and the cap 210, thereby protecting the sound transmission membrane 160 as well, ensuring the reliable use of the ultrasonic treatment head, ensuring the therapeutic effect of ultrasonic waves, and improving the use safety of the ultrasonic treatment head and the effectiveness of ultrasonic treatment.

[0061] Furthermore, Buffer member is provided in the accommodation cavity 202 and may be fixed to the inner wall surface of the housing 200 or the surface of the cap 210 facing the housing 200 by a connection method such as adhesion or engagement. Therefore, the structure is simple and the processing is convenient.

[0062] The housing 200 and the cap 210 are made of a hard material such as stainless steel or plastic. Since the sound transmission membrane 160 is used for isolating the conduction medium, conducting ultrasonic waves, and contacting the tissue to be treated, it is manufactured from an elastic material such as silicone rubber, TPU (thermoplastic polyurethane elastomer rubber), or TPEE (polytetrafluoroethylene).

[0063] The housing 200 and the sound transmission membrane 160 may have an integrally formed structure, or the sound transmission membrane 160 may be coated by adhesion on the end of the housing 200 that emits ultrasonic waves. The sound transmission membrane 160 may be fixed to a connecting member and provided in the first sound transmission hole 115, but is not limited here.

[0064] In the technical solution of the present application, Buffer member divides the accommodation cavity 202 to form a cavity wall of the accommodation cavity 202 and a buffer chamber, and this buffer chamber is used to cancel out the pressure change in the accommodation cavity 202 during the operation of the sound-emitting unit 201. In this way, the pressure in the accommodation cavity 202 is concentrated and acts on the sound-transmitting membrane 160, avoiding the destruction of the sound-transmitting membrane 160, extending the service life of the ultrasonic treatment head, and improving the use safety of the ultrasonic treatment head and the effectiveness of ultrasonic treatment.

[0065] As shown in FIGS. 5 to 6, in one embodiment, Buffer member is an elastic membrane. A channel communicating with the external environment is provided on the cavity wall of the accommodation cavity 202. The elastic membrane is fixedly connected to the cavity wall of the accommodation cavity 202 to form a buffer chamber communicating with the channel. When the pressure in the accommodation cavity 202 changes, the elastic membrane deforms to compress the air in the buffer chamber to the outside. In this way, because the elastic membrane has elasticity, when the sound-conducting medium receives heat and expands, the elastic membrane is easily compressed and deformed. Also, because the buffer chamber communicates with the external atmosphere, the elastic membrane deforms to compress the buffer chamber and compress the air inside it to the external environment by the expanded volume of the sound-conducting medium, thereby keeping the internal pressure between the accommodation cavity 202 and the buffer chamber substantially equal, avoiding the pressure in the accommodation cavity 202 from concentrating and acting on the sound-transmitting membrane 160, causing excessive deformation and even tearing, protecting the sound-transmitting membrane 160, and improving the reliability and use safety of the ultrasonic treatment head.

[0066] Here, the elastic membrane is made of an elastic material and serves to block water and air, avoiding the sound-conducting medium in the accommodation cavity 202 from flowing into the buffer chamber and then into the external environment, avoiding the sealing performance of the accommodation cavity 202, and improving the use safety of the ultrasonic treatment head and the effectiveness of ultrasonic treatment.

[0067] More specifically, in one embodiment, the elastic modulus of the elastic membrane is less than that of the sound transmission membrane 160. In other words, the manufacturing materials used for the elastic membrane and the sound transmission membrane 160 may be the same or different. The elastic membrane is more easily compressed and deformed than the sound transmission membrane 160. Therefore, when the pressure in the accommodation cavity 202 increases, the elastic membrane deforms first to respond to the internal pressure change, thereby preventing a large pressure from concentrating on and acting on the sound transmission membrane 160, avoiding excessive deformation and even tearing of the sound transmission membrane 160, protecting the sound transmission membrane 160 in this way, and improving the reliability and safety of use of the ultrasonic treatment head.

[0068] In one embodiment, Buffer member is provided away from the first sound transmission hole 115. In such a configuration, Buffer member is in the sound conduction region between the ultrasonic transducer 150 and the sound transmission membrane 160, avoiding affecting the conduction of ultrasonic waves, that is, Buffer member may be fixed in the region where there is a cavity wall close to the cap 210 in the housing 200. For example, as shown in FIG. 6, taking the end face away from the cap 210 of the ultrasonic transducer 150 as the boundary surface, Buffer member can be fixed at any position on the wall surface between this boundary surface and the cap 210.

[0069] Furthermore, referring to FIGS. 5 and 6, in one embodiment, the housing 200 includes an inner housing 120 and an outer housing 110 that are fixedly connected. The inner housing 120 is Buffer member connected to and sealed and connected to the cap 210. The outer housing 110 is externally fitted outside the inner housing 120. It can be understood that when the inner housing 120 is sealed and fixed to the cap 210 to form the accommodation cavity 202, this fixing may be performed by means such as bolt connection or engagement connection. At this time, Buffer memberis opened in the inner housing 120, and the outer housing 110 is externally fitted outside the inner housing 120. They may be integrally fixed by means such as buckle connection or screw connection. Further, the outer housing 110 serves to support and protect the inner housing 120, avoid the deformation of the inner housing 120 under pressure, extend the service life of the inner housing 120, and improve the reliability of the use of the ultrasonic treatment head.

[0070] Buffer member When the buffer chamber defined by the inner housing 120 communicates with the external environment, a through hole penetrating the inner housing 120 and the outer housing 110 may be provided. At this time, the buffer chamber is connected to the external atmosphere through the through hole, and the internal pressure of the buffer chamber is substantially the same as the atmospheric pressure.

[0071] Furthermore, referring to FIGS. 5 and 6, in one embodiment, a sealing ring 180 is interposed between the inner housing 120 and the cap 210. In this way, the sealing performance of the accommodation cavity 202 is ensured, and the overflow of the sound guiding medium into the accommodation cavity 202 through the connection gap between the inner housing 120 and the cap 210 and the flow of external air into the accommodation cavity 202 through the connection gap between the inner housing 120 and the cap 210 are reduced.

[0072] Specifically, in one embodiment, the cap 210 includes a bottom cap 211 and a top cap 212 that are fixedly connected. The bottom cap 211 is sealed and connected to the inner housing 120. A circuit board 230 is provided in an attachment cavity formed by connecting the top cap 212 and the bottom cap 211. The circuit board 230 is electrically connected to the ultrasonic transducer 150. It is understandable that a sealing ring 180 is interposed between the bottom cap 211 and the inner housing 120 to ensure that the bottom cap 211 and the inner housing 120 are connected to form a sealed accommodation cavity 202. The ultrasonic transducer 150 is fixed to the bottom cap 211 and electrically connected to the circuit board 230 in the attachment cavity, so that the ultrasonic transducer 150 is driven to generate ultrasonic waves, thereby achieving the purpose of treatment. Since the circuit board 230 is provided in the attachment cavity, the risks such as corrosion and damage are reduced, thereby ensuring the reliability of the use of the ultrasonic treatment head.

[0073] Referring to FIGS. 5 and 6, in one embodiment, the ultrasonic treatment head further includes a holder 203 having one end fixedly connected to the cap 210 and the other end fixedly connected to the ultrasonic transducer 150. It is understandable that the holder 203 has a fixing portion 221 and a clamping portion 222. The fixing portion 221 and the cap 210 may be fixedly connected and integrally fixed by a connection method such as engagement, insertion, or welding. The clamping portion 222 has a clamping hole, and the ultrasonic transducer 150 is fitted into the clamping hole and securely fixed.

[0074] In one embodiment, the through hole is opened in the cap 210. In such a configuration, the compensation mechanism is located in the sound conduction region between the ultrasonic transducer 150 and the sound transmission membrane 160, avoiding affecting the conduction of ultrasonic waves, while facilitating the processing of the through hole and simplifying the processing process.

[0075] Furthermore, referring to FIG. 7, in one embodiment, an injection hole 133 closed by a sealing plug 134 is formed in the cap 210, and a through hole is formed in the sealing plug 134. In such a configuration, the existing injection hole 133 can be utilized, simplifying the processing process, reducing the number of holes formed in the cap 210, improving the structural strength of the cap 210, and contributing to ensuring the sealing property of the accommodation cavity 202. At the same time, the through hole is provided in the sealing plug 134. At this time, the elastic film 240 covers the sealing plug 134 and seals the through hole, which contributes to the replacement of the sound transmission film 160, ensuring the compensation function of the compensation mechanism, and reducing the risk of damage to the elastic film 240 during long-term use, thereby improving the reliability and use safety of the ultrasonic treatment head.

[0076] Specifically, in one embodiment, the cap 210 may be assembled from a bottom cap 211 and a top cap 212. In this case, the bottom cap 211 is fixedly connected to the housing to form the accommodation cavity 202, and the injection hole 133 is formed in the bottom cap 211. The bottom cap 211 and the top cap 212 are connected to form a mounting cavity for accommodating electronic components such as a circuit board, thereby avoiding the corrosion of the electronic components and preventing them from interfering with the normal operation of the ultrasonic transducer 150.

[0077] Specifically, in one embodiment, the sealing plug 134 includes a plug body, a support framework provided on the outer periphery of the plug body, and a through hole opened in the plug body. The support framework is sealed and connected to the injection hole 133. In this way, by providing the support framework, the pressure compression deformation resistance of the entire sealing plug 134 is enhanced. While closing the injection hole 133, it is advantageous to avoid the situation where the pressure in the accommodation cavity 202 is too high, causing the sealing plug 134 to deform and the sealing performance of the accommodation cavity 202 to deteriorate. On the other hand, opening a through hole in the plug body facilitates covering it with the elastic membrane 240. Also, when the sealing plug 134 is attached, further closing the injection hole 133 ensures the sealing performance of the accommodation cavity 202 and is advantageous for replacing the sealing plug 134 and the elastic membrane 240, enabling the elasticity of the elastic membrane 240 to respond to repeated changes in pressure.

[0078] Furthermore, the surface of the support framework is covered with an elastic layer. The elastic layer is made of an elastic material, such as silicone rubber. By the elastic layer abutting against the injection hole 133, it contributes to improving the sealing performance of the accommodation cavity 202 and enhancing the connection strength of the sealing plug 134.

[0079] As shown in FIG. 7, in one embodiment, the compensation mechanism includes the elastic membrane 240. The elastic membrane 240 is provided within the housing 200 and fixedly connected to the cap 210. The elastic membrane 240, the cap 210, and the sound - conducting membrane 160 define the accommodation cavity 202. Here, the housing 200 may be sealed and fixed to the cap 210 by a connection method such as bolt connection or engagement. The elastic membrane 240 may be connected to the housing 200 by adhesion or engagement. The elastic membrane 240, the cap 210, and the sound - conducting membrane 160 can define the accommodation cavity 202. The accommodation cavity 202 is filled with a sound - conducting medium. In such a configuration, when the pressure in the accommodation cavity 202 changes, that is, when the sound - conducting medium receives heat and expands, the elastic membrane 240 is compressed according to the expansion amount. The elastic membrane 240 deforms to absorb the pressure change in the accommodation cavity 202 in a well - balanced manner, thereby protecting the sound - conducting membrane 160.

[0080] Furthermore, referring to FIG. 8, in one embodiment, the cap 210 may be assembled from a bottom cap 211 and a top cap 212. In this case, the bottom cap 211 is fixedly connected to the housing. A compensation hole extending in the arc direction may be formed in the range from the center to the edge of the top cap 212. The compensation holes may be provided symmetrically with respect to the center of the cap. A groove is provided at the joint between the bottom cap 211 and the top cap 212. In one embodiment, the elastic membrane 240 may be a pleated and stretchable elastic membrane. The edge of the elastic membrane 240 fits into the groove of the bottom cap 211. In this case, the elastic membrane 240 seals the compensation holes. It can be understood that in the elastic membrane 240 configured in this way, the accommodation cavity 202 defined together with the cap 210 and the sound transmission membrane 160 has a wider range of pressure changes that can be accommodated than in the above embodiments.

[0081] The present application also proposes a treatment device, which includes an ultrasonic treatment head 100 and a handle removably connected to the ultrasonic treatment head 100. For the specific structure of the ultrasonic treatment head 100, refer to the above embodiments. Since this treatment device adopts all the technical solutions of all the above embodiments, it has all the beneficial effects of the technical solutions of the above embodiments, but will not be described in detail here. Here, by connecting the handle to other removable probes to perform corresponding treatment operations, "multi-functionality" is realized, reducing time costs, space costs, and the purchase cost of the machine, and also enhancing the convenience of treatment.

[0082] The above are only preferred embodiments of the present application and do not limit the patent scope of the present application. Without departing from the inventive concept of the present application, any equivalent structural transformation using the content of the specification and drawings of the present application or any direct / indirect application in other related technical fields shall be included in the patent protection scope of the present application.

Description of Reference Numerals

[0083] 100 Ultrasonic treatment head 110 Outer housing 111 Upper outer housing 112 Lower outer housing 113 Engagement groove structure 114 Operating space 115 First sound passage hole 120 Inner housing 121 Second sound passage hole 122 Connection terminal 123 Locking base 124 Relief groove 125 Second flange 130 Inner cap 131 Assembly hole 200 Housing 202 Accommodation cavity 210 Cap 211 Bottom cap 212 Top cap 240 Elastic membrane 132 Wire passage hole 133 Injection hole 134 Sealing plug 135 Limiting groove 140 Buffer member 141 Buffer cavity 142 Opening 143 First flange 144 Elastic seal annular protrusion 150 Ultrasonic transducer 160 Sound passage membrane 170 Sheet material 171 Exhaust hole 180 Seal ring 190 Screw 201 Sound generating unit 203 Holder 221 Fixed part 222 Clamping part 230 Circuit board

Claims

1. An ultrasonic treatment head, comprising: a housing having a first sound passage hole covered with a sound transmission membrane; a cap fixed to the housing and forming a sealed accommodation cavity together with the sound transmission membrane; an ultrasonic transducer provided in the accommodation cavity, with the sound generating unit facing the first sound passage hole; a compensation member provided in the accommodation cavity and defining a buffer chamber together with the cavity wall of the accommodation cavity for canceling the pressure change in the accommodation cavity during the operation of the sound generating unit.

2. The compensation member is an elastic membrane fixedly connected to the cavity wall of the accommodation cavity and forming the sealed buffer chamber. When the pressure in the accommodation cavity changes, the elastic membrane deforms to compress the air in the buffer chamber. The ultrasonic treatment head according to Claim 1.

3. The compensation member is an elastic membrane. A channel communicating with the external environment is provided on the cavity wall of the accommodation cavity. The elastic membrane is fixedly connected to the cavity wall of the accommodation cavity and forms the buffer chamber communicating with the channel. When the pressure in the accommodation cavity changes, the elastic membrane deforms to compress the air in the buffer chamber to the outside. The ultrasonic treatment head according to Claim 2.

4. The elastic modulus of the elastic membrane is less than that of the sound transmission membrane. The ultrasonic treatment head according to Claim 2.

5. The compensation member is provided away from the first sound passage hole. The ultrasonic treatment head according to Claim 1.

6. The housing includes an inner housing and an outer housing fixedly connected. The inner housing is connected to the compensation member and is sealingly connected to the cap. The outer housing is externally fitted outside the inner housing. The ultrasonic treatment head according to Claim 1.

7. A sealing ring is interposed between the inner housing and the cap. The ultrasonic treatment head according to Claim 6.

8. The cap includes a bottom cap and a top cap fixedly connected. The bottom cap is sealingly connected to the inner housing. A circuit board is provided in an attachment cavity formed by connecting the top cap and the bottom cap. The circuit board is electrically connected to the ultrasonic transducer. The ultrasonic treatment head according to Claim 6.

9. The ultrasonic treatment head according to claim 8, further comprising a holder having one end fixedly connected to the cap and the other end fixedly connected to the ultrasonic transducer.

10. An ultrasonic treatment head, comprising: a housing provided with a first sound passage hole covered with a sound transmission membrane; a cap fixed to the housing and forming a sealed accommodation cavity together with the sound transmission membrane; an ultrasonic transducer provided in the accommodation cavity and having a sound generating unit facing the first sound passage hole; An ultrasonic treatment head, wherein a compensation mechanism for canceling a pressure change in the accommodation cavity during operation of the sound generating unit is provided in one of the housing and the cap.

11. The ultrasonic treatment head according to claim 10, wherein the compensation mechanism includes a through hole and an elastic membrane, the elastic membrane covers the through hole, and when the pressure in the accommodation cavity changes, the elastic membrane deforms.

12. The ultrasonic treatment head according to claim 11, wherein the through hole is formed in the cap, an injection hole closed by a sealing plug is formed in the cap, and the through hole is formed in the sealing plug.

13. The sealing plug includes a plug body, a support skeleton provided on the outer periphery of the plug body, and a through hole formed in the plug body. The support skeleton is hermetically connected to the injection hole, The ultrasonic treatment head according to claim 12, wherein an elastic layer covers the surface of the support skeleton.

14. The ultrasonic treatment head according to claim 11, wherein the compensation mechanism includes an elastic membrane, the elastic membrane is provided in the housing, fixedly connected to the cap, and the elastic membrane, the cap, and the sound transmission membrane define the accommodation cavity.

15. The ultrasonic treatment head according to claim 10, wherein a compensation hole is further formed in the cap, the compensation mechanism includes an elastic membrane, the elastic membrane is hermetically connected to the compensation hole, and the elastic membrane, the cap, and the sound transmission membrane define the accommodation cavity.

16. An ultrasonic treatment head, comprising: an outer housing including an operation space and a first sound passage hole; an inner cap provided with an assembly hole; An inner housing provided with a second sound passage hole and a connection end, the inner cap being fixedly connected to the connection end and defining an accommodation cavity together with the inner housing, and a sound passage channel being formed by the first sound passage hole and the second sound passage hole. A sound passage film covering the second sound passage hole. A buffer member provided with a buffer cavity, having a stretchable structure, provided in the accommodation cavity, further provided with an opening, the opening being fixedly connected to the assembly hole, and communicating the buffer cavity with the operation space. An ultrasonic transducer is provided in the accommodation cavity, and a sound guiding medium is filled. There is a gap between the ultrasonic transducer and the second sound passage hole, and the sound passage channel is used to transmit acoustic waves generated by the ultrasonic transducer. An ultrasonic treatment head, wherein the inner cap, the inner housing, the sound passage film, and the buffer member are located in the operation space.

17. The ultrasonic treatment head according to claim 16, wherein the buffer member is provided with one or more pleat structures.

18. The ultrasonic treatment head according to claim 17, wherein the buffer member is made of a silicon rubber material.

19. The buffer member is provided with a first flange, and the first flange is provided surrounding the opening. The ultrasonic treatment head according to claim 16, wherein the first flange is fixedly connected to the periphery of the assembly hole.

20. The ultrasonic treatment head according to claim 19, wherein the first flange is connected to the surface of the inner cap opposite to the accommodation cavity.

21. The inner cap is provided with a limiting groove surrounding the assembly hole, and the limiting groove is for placing the first flange. The ultrasonic treatment head according to claim 20.

22. The ultrasonic treatment head according to claim 21, wherein the first flange is provided with an elastic sealing annular convex portion on the surface contacting the inner cap.

23. Including a sheet material used for pressing the first flange and fixedly connected to the inner cap. The sheet material is further provided with exhaust holes, the exhaust holes connect the assembly holes and the opening, and the exhaust holes communicate the buffer cavity and the operation space. The ultrasonic treatment head according to any one of claims 19 to 22.

24. Further including a seal ring, The inner housing includes a second flange provided surrounding the connection end, the seal ring is placed on the second flange, and the inner cap presses the seal ring and is fixedly connected to the second flange. The ultrasonic treatment head according to claim 16.

25. A treatment device, An ultrasonic treatment head according to any one of claims 1 to 24, and a handle removably connected to the ultrasonic treatment head. A treatment device comprising.

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