Ultrasonic treatment head and ultrasonic treatment instrument

Abstract

The utility model discloses an ultrasonic treatment head and an ultrasonic therapeutic apparatus, and relates to the technical field of ultrasonic treatment, the ultrasonic treatment head comprises a housing and a transduction unit, the housing is provided with a sound transmission port, the sound transmission port is covered with a sound transmission film, and the transduction unit is provided with a sound transmission hole. The transduction unit is arranged in the cavity of the shell so as to emit ultrasonic waves towards the sound transmission opening, and the transduction unit divides the cavity of the shell into a sound guide cavity facing the sound transmission opening and a heat dissipation cavity deviating from the sound transmission opening. When the ultrasonic therapeutic head is used, the sound guide cavity is filled with a gelatinous ultrasonic coupling agent, the heat dissipation cavity is filled with a heat dissipation agent, the gelatinous ultrasonic coupling agent has high viscosity, bubbles cannot be generated no matter during perfusion or when the ultrasonic therapeutic head is inversely buckled, and therefore the problems of energy attenuation and focus plane change caused by the bubbles are avoided. Meanwhile, the heat dissipation agent in the heat dissipation cavity can absorb heat generated when the transduction unit works, and the cooling effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrasonic therapy, in particular to an ultrasonic therapy head and an ultrasonic therapy instrument. Background Art

[0002] In recent years, non-invasive beauty technology using focused ultrasound has been widely used. The principle is that ultrasound is emitted through a transducer installed inside the treatment head. The ultrasound is transmitted through a liquid conduction medium and focused on the subcutaneous tissue or adipose tissue, forming a "high temperature point" on the local subcutaneous tissue or adipose tissue, thereby causing the local subcutaneous tissue to contract under the action of high temperature, thereby achieving the beauty effect of improving skin firmness and burning fat.

[0003] Since water is relatively cheap and easy to obtain, and has a large specific heat capacity (with good heat absorption performance), traditional ultrasonic treatment heads mostly use water or a mixture of water and ethylene glycol as the ultrasonic conduction medium. Although this type of conduction medium can simultaneously conduct ultrasonic energy and absorb ultrasonic heat, it can dissolve a lot of air, and it is very easy to generate bubbles when disturbed during the perfusion process. Due to the presence of bubbles, if the ultrasonic treatment head is used upside down, the bubbles will float up and adhere to the sound-transmitting membrane at the sound-transmitting port, which will cause two major problems: first, the presence of bubbles will cause the ultrasonic energy to attenuate, thereby weakening the treatment effect; second, the presence of bubbles will change the focal plane distance, leading to serious accidents of skin injury. Utility Model Content

[0004] The main purpose of the utility model is to provide an ultrasonic therapeutic head and an ultrasonic therapeutic apparatus, aiming to avoid the generation of bubbles in the ultrasonic conductive medium therein and to dissipate heat from the transducer in time.

[0005] To achieve the above-mentioned purpose, the ultrasonic therapy head proposed in the utility model includes a shell and a transducer unit, the shell is provided with a sound-transmitting port, the sound-transmitting port is covered with a sound-transmitting membrane, the transducer unit is arranged in the cavity of the shell to emit ultrasonic waves toward the sound-transmitting port, and the transducer unit divides the cavity of the shell into a sound-conducting cavity toward the sound-transmitting port and a heat dissipation cavity away from the sound-transmitting port.

[0006] In one embodiment, the transducer unit includes a transducer holder and a transducer, the transducer holder is arranged in the chamber of the shell, the side wall of the transducer holder is arranged to fit the inner wall of the shell to divide the chamber of the shell into the sound guiding chamber and the heat dissipation chamber, the transducer is installed on the transducer holder and is located in the sound guiding chamber, and the transducer is used to emit ultrasonic waves toward the sound-transmitting port.

[0007] In one embodiment, the transducer bracket includes a top plate and a side plate protruding from the edge of the top plate, the side plate is fitted with the inner wall of the shell, the end surface of the side plate facing away from the top plate is fitted with the sound-transmitting membrane, and the top plate and the side plate enclose the sound-conducting cavity.

[0008] In one embodiment, a flange is protruding from the inner wall of the shell, the flange is arranged in the middle of the shell, and the top plate of the transducer bracket contacts and abuts against the flange.

[0009] In one embodiment, the transducer bracket is bonded and fixed to the housing and / or the sound-transmitting membrane.

[0010] In one embodiment, an adhesive layer is provided between the side plate of the transducer bracket and the inner wall of the shell, and the transducer bracket is bonded and fixed to the shell through the adhesive layer.

[0011] In one embodiment, the sound-transmitting membrane includes a central area opposite to the sound-transmitting port and an outer ring area surrounding the central area, the outer ring area is arranged to fit the end surface of the shell, and the material of the sound-transmitting membrane at least in the central area is a high elastic modulus material.

[0012] In one embodiment, the sound-conducting cavity is filled with a gel-like ultrasonic coupling agent, and the heat-dissipating cavity is filled with a heat-dissipating agent.

[0013] In one embodiment, the cooling agent is water or a mixture of water and antifreeze.

[0014] The utility model also provides an ultrasonic therapeutic apparatus, which comprises the ultrasonic therapeutic head provided above.

[0015] The ultrasonic treatment head of the utility model isolates the chamber inside the shell into a mutually independent sound-conducting cavity and a heat-dissipating cavity through a transducer unit. When in use, the sound-conducting cavity is filled with a gel-like ultrasonic coupling agent, and the heat-dissipating cavity is filled with a heat-dissipating agent. Among them, the gel-like ultrasonic coupling agent has a high viscosity, and no bubbles will be generated whether during infusion or when the ultrasonic treatment head is inverted, thereby avoiding the problems of energy attenuation and focal plane change caused by bubbles. At the same time, the heat-dissipating agent in the heat-dissipating cavity will absorb the heat generated by the transducer unit when it is working, thereby achieving the effect of cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 This is a structural schematic diagram of an embodiment of an ultrasonic therapy head provided by the utility model.

[0018] Description of Figure Numbers:

[0019] 100. Ultrasonic therapy head; 1. Shell; 11. Flange; 2. Transducer bracket; 3. Transducer; 4. Sound-transmitting membrane; 5. Sound-conducting cavity; 6. Heat-dissipating cavity; 7. Adhesive layer.

[0020] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0023] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0024] The utility model provides an ultrasonic treatment head 100.

[0025] See also Figure 1 The ultrasonic treatment head 100 of the utility model includes a shell 1 and a transducer unit. A sound-transmitting port is opened on the shell 1, and the sound-transmitting port is covered with a sound-transmitting membrane 4. The transducer unit is arranged in the cavity of the shell 1 to emit ultrasonic waves toward the sound-transmitting port. The transducer unit divides the cavity of the shell 1 into a sound-conducting cavity 5 facing the sound-transmitting port and a heat-dissipating cavity 6 away from the sound-transmitting port.

[0026] We know that the transducer unit needs to be immersed in an ultrasonic conductive medium to transfer ultrasonic energy to the skin tissue. Since water is relatively cheap and easy to obtain, and has a large specific heat capacity (with good heat absorption performance), traditional ultrasonic treatment heads mostly use water or a mixture of water and ethylene glycol as the ultrasonic conductive medium. In actual products, this type of ultrasonic conductive medium often fills the entire cavity of the shell, thereby playing a role in transmitting ultrasonic energy and dissipating heat in a timely manner. However, water or a mixture of water and ethylene glycol can dissolve a lot of air, and it is very easy to generate bubbles when disturbed during the perfusion process. Due to the presence of bubbles, if the ultrasonic treatment head is used upside down, the bubbles will float up and adhere to the sound-transmitting membrane at the sound-transmitting port, which will cause two major problems: first, the presence of bubbles will cause the ultrasonic energy to attenuate, thereby weakening the treatment effect; second, the presence of bubbles will change the focal plane distance, leading to serious accidents of skin injuries.

[0027] Unlike the traditional ultrasonic therapy head, the ultrasonic therapy head 100 of the utility model isolates the chamber inside the shell 1 into independent sound-conducting chamber 5 and heat-dissipating chamber 6 through the transducer unit. When in use, the sound-conducting chamber 5 is filled with a gel-like ultrasonic coupling agent, and the heat-dissipating chamber 6 is filled with a heat-dissipating agent. Among them, the main components of the ultrasonic coupling agent are water, glycerin and grease, and the gel-like ultrasonic coupling agent has a high viscosity. No bubbles will be generated during the injection or when the ultrasonic therapy head 100 is turned upside down, thereby avoiding the problems of energy attenuation and focal plane change caused by bubbles. At the same time, the heat-dissipating agent in the heat-dissipating chamber 6 can be water or a mixture of water and antifreeze, so as to absorb the heat generated when the transducer unit is working and achieve the effect of cooling. Among them, the antifreeze can be ethylene glycol. Adding antifreeze to the heat-dissipating agent is mainly suitable for northern regions to prevent the heat-dissipating agent from freezing and condensing in a low-temperature environment.

[0028] Specifically, the transducer unit includes a transducer bracket 2 and a transducer 3. The transducer bracket 2 is arranged in the chamber of the shell 1 and is located in the middle position of the shell 1. The side wall of the transducer bracket 2 is fitted with the inner wall of the shell 1 to divide the chamber of the shell 1 into a sound guiding chamber 5 and a heat dissipation chamber 6. The transducer 3 is installed on the transducer bracket 2 and is located in the sound guiding chamber 5 for emitting ultrasonic waves toward the sound-transmitting port.

[0029] The transducer support 2 includes a top plate and a side plate protruding from the edge of the top plate, the side plate is fitted with the inner wall of the housing 1, the end surface of the side plate facing away from the top plate is fitted with the sound-transmitting membrane 4, and the top plate and the side plate are enclosed to form a sound-conducting cavity 5. The bottom surface of the side plate is in contact with the sound-transmitting membrane 4, that is, the ultrasonic coupling agent is filled in the space enclosed by the top plate and the side plate of the transducer support 2 and the sound-transmitting membrane 4, the transducer 3 is immersed in the ultrasonic coupling agent, and the ultrasonic wave emitted by the transducer 3 is transmitted to the sound-transmitting membrane 4 through the ultrasonic coupling agent, and then acts on the skin tissue to be treated.

[0030] At the same time, the heat generated by the transducer 3 during operation is transferred to the transducer bracket 2, and the heat of the transducer bracket 2 is absorbed by the heat dissipating agent in the heat dissipation cavity 6, thereby achieving heat dissipation of the transducer 3. In the present invention, the material of the transducer bracket 2 can be a heat-conductive material, such as metal or metal alloy, so as to improve the heat dissipation efficiency of the transducer bracket 2.

[0031] In one embodiment, a flange 11 is protruding from the inner wall of the housing 1, and the flange 11 is arranged in the middle of the housing 1. The top plate of the transducer holder 2 contacts and abuts against the flange 11, thereby confirming the installation depth of the transducer holder 2. After the transducer 3 is installed in the transducer holder 2, it is installed in the housing 1, thereby ensuring that the installation depth of the transducer 3 meets the design requirements.

[0032] Furthermore, a sealing ring (not shown) is provided between the flange 11 and the top plate of the transducer bracket 2 , and the sealing ring plays a sealing role, thereby preventing the heat dissipating agent in the heat dissipating cavity 6 from flowing into the side gap of the transducer bracket 2 .

[0033] Among them, the transducer bracket 2 is bonded and fixed to the shell 1 and / or the sound-transmitting membrane 4. Specifically, an adhesive layer 7 is provided between the side panel of the transducer bracket 2 and the inner wall of the shell 1, and the transducer bracket 2 is bonded and fixed to the shell 1 and / or the sound-transmitting membrane 4 through the adhesive layer 7.

[0034] In the embodiment of the utility model, the sound-transmitting membrane 4 includes a central area arranged opposite to the sound-transmitting port and an outer ring area arranged around the central area, and the outer ring area is arranged in contact with the end surface of the shell 1, so as to realize the connection between the sound-transmitting membrane 4 and the shell 1. Among them, the central area of ​​the sound-transmitting membrane 4 is an ultrasonic wave penetration area. In order to prevent the sound-transmitting membrane 4 from being punctured due to excessive ultrasonic energy, the material of the sound-transmitting membrane 4 at least in the central area is a high elastic modulus material, that is, the sound-transmitting membrane 4 can be made of a high elastic modulus material in its entirety, or it can be made of a high elastic modulus material only in the central area, and a low elastic modulus material (such as PET film) can be used in the outer ring area. Among them, high elastic modulus materials such as PI film, PEEK (polyetheretherketone) and PTFE (polytetrafluoroethylene) have the characteristics of high temperature deformation resistance and can return to their original state after deformation.

[0035] The utility model also proposes an ultrasonic therapeutic apparatus, which includes an ultrasonic therapeutic head 100. The specific structure of the ultrasonic therapeutic head 100 refers to the above embodiment. Since the ultrasonic therapeutic apparatus adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0036] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An ultrasonic treatment head, characterized in that: include: A shell body, wherein a sound-permeable opening is formed on the shell body, and the sound-permeable opening is covered with a sound-permeable membrane; A transducer unit is disposed in the cavity of the shell to emit ultrasonic waves toward the sound-transmitting port, and the transducer unit divides the cavity of the shell into a sound-conducting cavity toward the sound-transmitting port and a heat-dissipating cavity away from the sound-transmitting port.

2. The ultrasonic treatment head according to claim 1, characterized in that: The transducer unit comprises: A transducer bracket, wherein the transducer bracket is arranged in the chamber of the shell, and a side wall of the transducer bracket is arranged in contact with an inner wall of the shell to separate the chamber of the shell into the sound-conducting chamber and the heat-dissipating chamber; A transducer is mounted on the transducer bracket and located in the sound-conducting cavity, and is used for emitting ultrasonic waves toward the sound-transmitting opening.

3. The ultrasonic treatment head according to claim 2, characterized in that: The transducer bracket includes a top plate and a side plate protruding from the edge of the top plate, the side plate is fitted with the inner wall of the shell, the end surface of the side plate facing away from the top plate is fitted with the sound-transmitting membrane, and the top plate and the side plate enclose the sound-conducting cavity.

4. The ultrasonic treatment head according to claim 3, characterized in that: The inner wall of the shell is convexly provided with a flange, the flange is arranged in the middle position of the shell, and the top plate of the transducer bracket contacts and abuts against the flange.

5. The ultrasonic treatment head according to claim 3, characterized in that: The transducer bracket is bonded and fixed to the shell and / or the sound-transmitting membrane.

6. The ultrasonic treatment head according to claim 5, characterized in that: An adhesive layer is provided between the side plate of the transducer bracket and the inner wall of the shell, and the transducer bracket is bonded and fixed to the shell through the adhesive layer.

7. The ultrasonic treatment head according to claim 1, characterized in that: The sound-transmitting membrane includes a central area arranged opposite to the sound-transmitting port and an outer ring area arranged around the central area. The outer ring area is arranged to fit the end surface of the shell. The material of the sound-transmitting membrane at least in the central area is a high elastic modulus material.

8. The ultrasonic treatment head according to any one of claims 1 to 7, characterized in that: The sound-conducting cavity is filled with a gel-like ultrasonic coupling agent, and the heat-dissipating cavity is filled with a heat-dissipating agent.

9. The ultrasonic treatment head according to claim 8, characterized in that: The heat dissipating agent is water or a mixture of water and antifreeze.

10. An ultrasonic therapeutic apparatus, characterized in that: The ultrasonic therapy head comprises the ultrasonic therapy head as claimed in any one of claims 1 to 9.

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