Measuring device

Abstract

The application discloses a measuring device, and relates to the technical field of testing equipment, wherein the measuring device is used for measuring the sound field focal energy of an ultrasonic treatment head, and comprises a shell, a sound-permeable plate and a temperature-sensitive color-changing piece. The shell is provided with a containing cavity which is filled with a sound guide medium. The temperature-sensitive color-changing piece is arranged in the containing cavity. The cavity wall of the containing cavity which is used for adhering to the treatment surface of the ultrasonic treatment head is made of a sound-permeable material, and is used for receiving ultrasonic energy emitted by the ultrasonic treatment head. The ultrasonic energy passes through the sound guide medium to the temperature-sensitive color-changing piece, and the temperature-sensitive color-changing piece is used for displaying the distribution of the ultrasonic energy. The measuring device provided by the application is used for directly and visually measuring and displaying the sound field and output energy distribution of the ultrasonic treatment head, and can be repeatedly used, thereby saving cost.

Description

Technical Field

[0001] This invention relates to the field of testing equipment technology, and in particular to a measuring device. Background Technology

[0002] Focused ultrasound therapy is a device that uses ultrasound to treat skin conditions. The basic principle is to use the mechanical vibration and thermal effect of ultrasound to deeply stimulate and treat the skin.

[0003] Currently, the equipment for professionally measuring the focal range of the sound field in ultrasound therapy devices includes hydrophone systems, but these systems are complex to operate and expensive. A simpler method to represent the focal range of the sound field is to apply ultrasound waves to biological tissues, causing changes in the tissues to show the energy distribution of the ultrasound waves. However, this method cannot be repeated using the same biological tissue, increasing testing costs. Summary of the Invention

[0004] The main objective of this invention is to provide a measuring device that can intuitively measure and display the sound field and output energy distribution of an ultrasound treatment head, and is reusable, thus saving costs.

[0005] To achieve the above objectives, the present invention proposes a measuring device for measuring the focal energy of an ultrasonic treatment head. The measuring device includes a housing, a sound-transparent plate, and a thermochromic element. The housing has a receiving cavity filled with a sound-conducting medium. The thermochromic element is disposed in the receiving cavity. The cavity wall of the receiving cavity, which is used to fit the treatment surface of the ultrasonic treatment head, is made of a sound-transparent material. The cavity wall is used to receive the ultrasonic energy emitted by the ultrasonic treatment head. The ultrasonic energy passes through the sound-conducting medium to the thermochromic element, which is used to display the distribution of the ultrasonic energy.

[0006] In one embodiment, the thickness of the cavity wall is 0.5 mm to 1.5 mm;

[0007] Alternatively, the thickness of the cavity wall is 1.5 mm to 13 mm;

[0008] Alternatively, the thickness of the cavity wall is 13 mm to 25 mm.

[0009] In one embodiment, the thickness of the thermochromic element is more than 1.5 times the maximum distance between the -6dB points on both sides of the maximum value of the square integral of the pulse sound pressure on the acoustic beam axis of the ultrasonic treatment head.

[0010] In one embodiment, the cavity wall opposite to the treatment surface of the ultrasonic treatment head is made of a non-sound-permeable material.

[0011] In one embodiment, the measuring device further includes an acoustic plate, and the housing has a first opening. The measuring device further includes an acoustic plate, which is detachably fitted with the first opening to form the cavity wall for conforming to the treatment surface of the ultrasonic treatment head. The surface of the acoustic plate facing away from the receiving cavity is used to conform to the treatment surface of the ultrasonic treatment head and receive the ultrasonic energy emitted by the ultrasonic treatment head.

[0012] The sound-permeable panel is made of transparent acrylic or glass.

[0013] In one embodiment, the raw materials for preparing the thermochromic element include epoxy resin and thermochromic powder.

[0014] In one embodiment, the bottom wall of the receiving cavity has a second opening, and the thermochromic element covers the second opening.

[0015] In one embodiment, there are multiple acoustic panels and multiple thermochromic elements, with any two acoustic panels having different thicknesses and any two thermochromic elements having different thicknesses. One acoustic panel covers the first opening, and one thermochromic element is disposed in the receiving cavity.

[0016] In one embodiment, the sound-permeable plate and the thermochromic element are both detachably connected to the receiving cavity. The measuring device further includes a pad, which is disposed between the edge of the sound-permeable plate and the edge of the thermochromic element. The sound-permeable plate, the pad, and the thermochromic element together form a sound-guiding cavity, which is filled with the sound-guiding medium.

[0017] In one embodiment, the housing has a through hole, one end of which is connected to the sound-guiding cavity, and the other end of which is connected to the outside. The sound-guiding medium can be filled into the sound-guiding cavity through the through hole.

[0018] In one embodiment, the thermochromic element and / or the pad has a flow channel, which is used to connect the through hole and the sound-guiding cavity.

[0019] In one embodiment, the number of through holes is at least two, and at least two through holes are spaced apart in the housing. At least one through hole is used to inject the sound-conducting medium, and at least another through hole is used to exhaust air.

[0020] In one embodiment, the housing includes a first housing and a second housing, the first housing and the second housing being detachably and sealingly connected to enclose and form the receiving cavity, and the first housing having the first opening.

[0021] In one embodiment, a sealing groove is formed on the edge surface of the second housing facing the first housing and / or the edge surface of the first housing facing the second housing. A sealing element is provided in the sealing groove. The first housing is connected to the second housing so as to press the sealing element against the bottom of the sealing groove.

[0022] The measuring device proposed in this invention includes a housing, an acoustically transparent plate, and a thermochromic element. The housing has a cavity with an acoustically transparent wall that fits the treatment surface of the ultrasonic treatment head. The thermochromic element is disposed within the cavity, which is filled with a sound-conducting medium to reduce sound energy loss. During measurement, an ultrasonic coupling agent is applied to the surface of the acoustically transparent plate beforehand. The treatment surface of the treatment head is then pressed tightly against the acoustically transparent plate, and ultrasonic energy is emitted from the treatment head towards the thermochromic element. The ultrasonic mechanical vibration and thermal effect cause the thermochromic element to change color upon heating. The color intensity varies with the energy level and cumulative time. By using the thermochromic element, the sound field and output energy distribution of the ultrasonic treatment head can be visually displayed. Furthermore, when the temperature drops to room temperature, the color of the thermochromic element returns to its initial color, allowing the measuring device to be reused and saving testing costs. The treatment head can also slide on the cavity wall to simulate the action during treatment, resulting in different patterns on the thermochromic element to display the sound field and output energy distribution under different treatment techniques. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 A schematic diagram of an embodiment of the measuring device provided by the present invention;

[0025] Figure 2 Exploded view of another embodiment of the measuring device provided by the present invention;

[0026] Figure 3 A schematic diagram of another embodiment of the measuring device provided by the present invention;

[0027] Figure 4 for Figure 3 A cross-sectional view at point AA.

[0028] Explanation of icon numbers:

[0029] 100. Measuring device; 1. Housing; 11. First opening; 12. Second opening; 13. Sound guide cavity; 14. Through hole; 15. First housing; 16. Second housing; 161. Sealing groove; 2. Sound-permeable plate; 3. Temperature-sensitive color-changing element; 31. Flow guide channel; 4. Pad; 5. Sealing element.

[0030] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0032] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0033] Furthermore, if the embodiments of this invention 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. Thus, 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 invention.

[0034] Focused ultrasound therapy is a device that uses ultrasound to treat skin conditions. The basic principle is to use the mechanical vibration and thermal effect of ultrasound to deeply stimulate and treat the skin.

[0035] Currently, acrylic materials are generally used for measuring the focal range of the sound field in ultrasonic therapy devices. A drawback is that the raw material ratios and manufacturing processes used in acrylic materials from different manufacturers vary, resulting in different properties for different brands and models of acrylic materials. The propagation speed of ultrasound waves varies significantly among different brands and models of acrylic materials. Using pressure plates of different brands and models as the detection material for ultrasonic energy output leads to substantial differences in the presented ultrasonic energy distribution results. Acrylic materials are disposable and cannot be reused. When using acrylic materials as the detection material to present ultrasonic energy distribution results, the ultrasonic energy will leave irreversible damage to the acrylic material, therefore, acrylic materials cannot be reused. A simpler method to demonstrate the focal range energy is to apply ultrasound waves to biological tissue, causing changes in the tissue to show the energy distribution of the ultrasound. The disadvantage is that the same biological tissue cannot be used for repeated measurements, increasing testing costs.

[0036] This invention proposes a measuring device designed to intuitively measure and display the sound field and output energy distribution of an ultrasound treatment head, and it is reusable, saving costs.

[0037] Please see Figures 1 to 4 In one embodiment of the present invention, the measuring device 100 is used to measure the focal energy of the sound field of an ultrasonic treatment head. The measuring device 100 includes a housing 1, a sound-transparent plate 2, and a thermochromic element 3. The housing 1 has a receiving cavity filled with a sound-conducting medium. The thermochromic element 3 is disposed in the receiving cavity. The cavity wall of the receiving cavity, which is used to fit the treatment surface of the ultrasonic treatment head, is made of a sound-transparent material. The cavity wall is used to receive the ultrasonic energy emitted by the ultrasonic treatment head. The ultrasonic energy passes through the sound-conducting medium to the thermochromic element 3, which is used to display the distribution of the ultrasonic energy.

[0038] In this embodiment, the housing 1 can be made of rigid plastic, which is sturdy, durable, low-cost, and lightweight. Alternatively, it can be made of lightweight metal, such as aluminum alloy or titanium alloy, which is also sturdy, durable, and lightweight. Metal housing 1 also has good thermal conductivity, aiding in heat dissipation. The shape of the housing 1 can be cuboid or cylindrical; no further limitation is made here. One surface of the housing 1 is made of a sound-transparent material, such as acrylic or glass, to fit the treatment surface of the treatment head. The thermochromic element 3 can be made of a reversible thermochromic material, capable of displaying different colors according to temperature and returning to its initial color after the temperature recovers, allowing for repeated testing. The thermochromic element 3 can be injection molded from a mixture of epoxy resin and thermochromic powder to form the desired shape. The size of the thermochromic element 3 must be at least larger than the first opening 11, ensuring that all the ultrasonic energy from the treatment head irradiates the thermochromic element 3, thus visually displaying the sound field and energy distribution of the treatment head. The thermochromic element 3 is detachably connected to the receiving cavity of the housing 1. This connection can be achieved using screws or by creating a slot in the cavity wall, allowing the thermochromic element 3 to engage with the slot. The thermochromic element 3 can also comprise an organic reversible thermochromic material, such as triarylmethylphthalides, indolinephthalides, or fluoranes. These materials offer advantages such as a wide thermochromic range, obvious color change, vibrant color, and high sensitivity. Alternatively, the thermochromic coating can be applied to the plate, facing the sound-transmitting element. The focal point of the treatment head can then be focused on the thermochromic coating, causing it to change color as the temperature rises. The color corresponds to the temperature, and the temperature corresponds to the energy distribution of the sound field. Therefore, the sound field energy distribution information of the treatment head can be obtained based on the color change of the thermochromic coating.

[0039] The measuring device 100 proposed in the technical solution of the present invention includes a housing 1, a sound-transmitting plate 2, and a thermochromic element 3. The housing 1 has a first opening 11, the sound-transmitting plate 2 is disposed at the first opening 11, the thermochromic element 3 is disposed at the bottom inside the housing 1, and the housing 1 is filled with a sound-conducting medium to reduce the loss of sound energy. During measurement, an ultrasonic coupling agent needs to be applied to the surface of the acoustic plate 2 beforehand. The treatment surface of the treatment head is then placed tightly against the acoustic plate 2, and ultrasonic energy is emitted from the treatment head towards the thermochromic element 3. The ultrasonic mechanical vibration and thermal effect cause the thermochromic element 3 to change color with increasing temperature. The depth of color varies with the amount of energy and the cumulative time. By using the thermochromic element 3, the sound field and output energy distribution of the ultrasonic treatment head can be displayed intuitively. Furthermore, when the temperature drops to room temperature, the color of the thermochromic element 3 will return to its initial color, making the measuring device 100 reusable and saving testing costs. The treatment head can also slide on the acoustic plate 2 to simulate the action during treatment, and different patterns will be formed on the thermochromic element 3 accordingly to display the sound field and output energy distribution under different treatment techniques.

[0040] In embodiments of the present invention, the thickness of the cavity wall is 0.5 mm to 1.5 mm;

[0041] Alternatively, the thickness of the cavity wall can be 1.5 mm to 13 mm;

[0042] Alternatively, the thickness of the cavity wall can be 13mm to 25mm.

[0043] In this embodiment, different ultrasonic treatment heads output ultrasonic energy with different focusing depths, i.e., different treatment depths. The cavity wall thickness of the measuring device 100 is less than or equal to 0.25 times the treatment depth of the ultrasonic treatment head, so that the focal point of the ultrasonic energy output is located near the upper surface of the thermochromic element 3. This allows for the detection of ultrasonic energy while preventing damage to the cavity wall from the ultrasonic energy near the focal point, thus avoiding interference with observation. At this time, the thermochromic element 3 can better display the distribution of ultrasonic energy, making it easier for the user to observe the distribution of ultrasonic energy.

[0044] The specific thickness of the cavity wall is selected based on the focusing depth of the ultrasonic treatment head to be measured. The measuring device 100 can have various specifications. The specifications of the measuring device 100 are determined according to the thickness of the cavity wall and the distance from the upper surface of the thermochromic element 3 to the surface of the cavity wall used to conform to the ultrasonic treatment head. Different specifications of the measuring device 100 can be used to measure the energy output of ultrasonic treatment heads at different treatment depths.

[0045] When the depth of focus of the ultrasonic treatment head is shallow, the thickness of the cavity wall can be 0.5mm to 1.5mm, such as 0.5mm, 1.0mm, 1.5mm or any value within the above range; when the depth of focus of the ultrasonic treatment head is moderate, the thickness of the cavity wall can be 1.5mm to 13mm, such as 1.5mm, 5.0mm, 10.0mm, 13.0mm or any value within the above range; when the depth of focus of the ultrasonic treatment head is deep, the thickness of the cavity wall can be 13mm to 25mm, such as 13mm, 18mm, 23mm, 25mm or any value within the above range.

[0046] In an embodiment of the present invention, the thickness of the thermochromic element 3 is more than 1.5 times the maximum distance between the two -6dB points on both sides of the maximum value of the square integral of the pulse sound pressure on the acoustic beam axis of the ultrasonic treatment head.

[0047] In this embodiment, the thickness of the thermochromic element 3 should not be too thin. When the upper surface of the thermochromic element 3 is located within the treatment focal zone of the ultrasonic treatment head, that is, when the distance between the upper surface of the thermochromic element 3 and the end face of the treatment head is equal to the treatment depth, the ultrasonic energy output by the ultrasonic treatment head is focused on the upper surface of the thermochromic element 3. At this time, the ultrasonic energy will penetrate and extend downward along the axial direction of the ultrasonic treatment head's sound beam. When the thermochromic element 3 is too thin, the ultrasonic energy will penetrate the thermochromic element 3, and the ultrasonic energy may act on the operator's hands or other parts, causing injury. The thickness of the thermochromic element 3 is preferably more than 1.5 times the maximum distance between the -6dB points on both sides of the maximum value of the square integral of the pulse sound pressure on the sound beam axis of the ultrasonic treatment head, such as 1.5 times or 2.0 times, to improve the safety of the measuring device 100.

[0048] In an embodiment of the present invention, the cavity wall opposite to the treatment surface of the ultrasonic treatment head is made of a non-sound-permeable material.

[0049] In this embodiment, the receiving cavity is used to fit the cavity wall opposite to the cavity wall of the ultrasonic treatment head. That is, the bottom of the receiving cavity is made of a non-sound-permeable material, such as plastic or soundproof board, to prevent sound waves from passing through the bottom of the receiving cavity and causing damage to the table, test bench or human hand below the measuring device 100.

[0050] In an embodiment of the present invention, a first opening 11 is provided on the housing 1, and the measuring device 100 further includes a sound-transmitting plate 2. The sound-transmitting plate 2 cooperates with the first opening 11 to form a cavity wall for fitting the treatment surface of the ultrasonic treatment head. The surface of the sound-transmitting plate 2 facing away from the receiving cavity is used to fit the treatment surface of the ultrasonic treatment head and receive the ultrasonic energy emitted by the ultrasonic treatment head.

[0051] The acoustic plate 2 is made of transparent acrylic or glass. In this embodiment, the acoustic plate 2 is made of acrylic mainly to transmit sound and support the temperature-sensitive color-changing component 3. It does not play a role in detecting ultrasonic energy output. Therefore, the situation where ultrasonic energy causes irreversible damage to the acrylic plate as described in the background art will not occur.

[0052] In this embodiment, the acoustic plate 2 can be disposed within the receiving cavity and connected to the edge of the opening 11 facing the receiving cavity via adhesive, screws, or snap-fit ​​connections. Alternatively, the acoustic plate 2 can be snapped onto the inner wall of the first opening 11. For example, if a mounting groove is provided on the inner wall of the first opening 11, the edge of the acoustic plate 2 can be connected to the mounting groove via snap-fit ​​or adhesive connections, thus connecting the acoustic plate 2 to the first opening 11. The acoustic plate 2 can also be disposed outside the receiving cavity and connected to the edge of the first opening 11 away from the receiving cavity via adhesive or screws. The shape of the acoustic plate 2 is the same as that of the first opening 11, covering the first opening 11 to create a closed space within the receiving cavity for filling with a sound-conducting medium. The sound-conducting medium can be pure water or petroleum jelly, which can prevent sound wave attenuation, making the test results more accurate and more consistent with the actual output energy of the treatment head.

[0053] A first opening 11 is formed on one side of the shell. The shape of the first opening 11 can be rectangular or circular, etc., without further limitation. The sound-transparent plate 2 can be made of transparent glass or transparent acrylic. The treatment surface of the treatment head is attached to the surface of the sound-transparent plate 2 away from the receiving cavity. The material of the sound-transparent plate 2 allows ultrasound waves to pass through without affecting the transmission of ultrasound waves. Furthermore, the transparent glass or transparent acrylic material allows the tester to directly see the color change of the thermochromic element 3 inside the shell 1, and thus observe the sound field and output energy distribution of the ultrasonic treatment head.

[0054] In one example, the sound-transparent panel 2 is made of transparent acrylic material. Acrylic material has high transparency, allowing the operator to directly observe the color change of the thermochromic element 3 through the sound-transparent panel 2. Acrylic material has good sound transmission, which can reduce sound field loss and make the sound field displayed by the thermochromic element 3 more consistent with the actual sound field.

[0055] In an embodiment of the present invention, the raw materials for preparing the thermochromic element 3 include epoxy resin and thermochromic powder.

[0056] In this embodiment, the raw materials for preparing the thermochromic part 3 include epoxy resin and thermochromic powder. The thermochromic powder is mixed into component A or component B of the epoxy resin, then component A and component B of the epoxy resin are mixed, and the mixture is injected into a mold for injection molding to form the thermochromic part 3. Epoxy resin has strong heat resistance and can adapt to high-temperature working environments. The injection molding method allows the thermochromic part 3 to be manufactured into different shapes and thicknesses according to the application scenario and thickness requirements, making the manufacturing method more flexible.

[0057] In an embodiment of the present invention, a second opening 12 is provided on the bottom wall of the cavity, and the thermochromic element 3 covers the second opening 12.

[0058] In this embodiment, a second opening 12 is provided on the bottom wall of the receiving cavity. The thermochromic element 3 covers the second opening 12. The thermochromic element 3 can be disposed inside the receiving cavity and connected to the edge of the opening of the second opening 12 facing the inside of the receiving cavity by means of adhesion, screws, or snap-fit. Of course, it can be understood that the thermochromic element 3 can also be snapped onto the inner wall of the second opening 12. For example, an installation groove is provided on the inner wall of the second opening 12, and the edge of the thermochromic element 3 is connected to the installation groove by means of snap-fit ​​or adhesion, thereby realizing the connection between the thermochromic element 3 and the second opening 12. The thermochromic element 3 can also be disposed outside the receiving cavity and connected to the edge of the opening of the second opening 12 away from the receiving cavity by adhesion or screws. The shape of the thermochromic element 3 is the same as the shape of the second opening 12 to cover the second opening 12, so that the receiving cavity inside the housing 1 is a closed space for filling the receiving cavity with a sound-conducting medium. By opening a second opening 12 and placing the thermochromic element 3 at the second opening 12, it is possible to help the thermochromic element 3 dissipate heat, enabling the thermochromic element 3 to recover to its initial color more quickly and reducing the time interval between repeated use.

[0059] In the embodiments of the present invention, there are multiple sound-permeable plates 2 and multiple thermochromic elements 3. The thickness of any two sound-permeable plates 2 is different, and the thickness of any two thermochromic elements 3 is different. One sound-permeable plate 2 covers the first opening, and one thermochromic element 3 is disposed in the receiving cavity.

[0060] In this embodiment, the measuring device 100 includes multiple acoustic plates 2 and thermochromic elements 3. The thickness of any two acoustic plates 2 is different, that is, the thickness of each acoustic plate 2 is different. The thickness of any two thermochromic elements 3 is also different, that is, the thickness of each thermochromic element 3 is also different. Both the acoustic plates 2 and the thermochromic elements 3 are detachably connected to the housing 1. The specific connection method can be screw connection, plug connection, or snap connection. In use, one of the acoustic plates 2 is connected to the first opening, and one of the thermochromic elements 3 is placed in the receiving cavity. By replacing the acoustic plates 2 and / or the thermochromic elements 3 with different thicknesses, the distance between the acoustic plates 2 and the thermochromic elements 3 can be changed, thereby changing the depth of the sound guiding medium, so as to be able to adapt to more ultrasound treatment heads with different focal points and improve the versatility of the measuring device 100.

[0061] It is understood that, in other embodiments, the distance between the acoustic plate 2 and / or the thermochromic element 3 can be adjusted by changing their positions, thereby changing the depth of the sound-conducting medium to accommodate more ultrasound treatment heads with different focal points; the distance between the acoustic plate 2 and / or the thermochromic element 3 can also be adjusted by stacking multiple layers of acoustic plates 2 and / or thermochromic elements 3 of the same thickness, thereby changing the depth of the sound-conducting medium to accommodate more ultrasound treatment heads with different focal points, thus improving the applicability of this measuring device 100.

[0062] In an embodiment of the present invention, the sound-permeable plate 2 and the thermochromic element 3 are both detachably connected to the receiving cavity. The measuring device 100 also includes a pad 4, which is disposed between the edge of the sound-permeable plate 2 and the edge of the thermochromic element 3. The sound-permeable plate 2, the pad 4 and the thermochromic element 3 enclose a sound-guiding cavity 13, which is filled with a sound-guiding medium.

[0063] In this embodiment, a pad 4 is sandwiched between the sound-transmitting plate 2 and the thermochromic element 3. The pad 4, together with the sound-transmitting plate 2 and the thermochromic element 3, forms a sound-guiding cavity 13. The sound-guiding cavity 13 is filled with a sound-guiding medium to reduce sound wave dissipation and improve measurement accuracy. The housing 1 can directly hold the sound-transmitting plate 2, the thermochromic element 3, and the pad 4 inside the receiving cavity. This ensures that there are no other connections between the sound-transmitting plate 2 and the thermochromic element 3 and the housing 1, facilitating quick disassembly and replacement of the sound-transmitting plate 2 and the thermochromic element 3, reducing disassembly waiting time, and improving the measurement efficiency of the measuring device 100.

[0064] In an embodiment of the present invention, the housing 1 has a through hole 14. One end of the through hole 14 is connected to the sound guiding cavity 13, and the other end of the through hole 14 is connected to the outside. The sound guiding medium can be filled into the sound guiding cavity 13 through the through hole 14.

[0065] In this embodiment, a through hole 14 communicating with the sound guiding cavity 13 is provided on the housing 1. The other end of the through hole 14 is connected to the outside. The sound guiding medium can be added into the sound guiding cavity 13 through the through hole 14. It is not necessary to completely disassemble the measuring device 100 and fill it with the sound guiding medium, thereby reducing the waiting time for disassembling the measuring device 100 and improving the measurement efficiency of the measuring device 100.

[0066] In an embodiment of the present invention, the thermochromic element 3 and / or the pad 4 are provided with a flow channel 31, which is used to connect the through hole 14 and the sound guide cavity 13.

[0067] In this embodiment, the thermochromic element 3 and / or the pad 4 are provided with a flow channel 31, through which the sound-conducting medium can flow from the through hole 14 into the sound-conducting cavity 13. The function of the flow channel 31 is to guide the sound-conducting medium and prevent it from flowing to other parts of the housing 1, thus preventing leakage.

[0068] In an embodiment of the present invention, the number of through holes 14 is at least two, at least two through holes 14 are spaced apart on the housing 1, at least one through hole 14 is used for injecting sound-conducting medium, and at least another through hole 14 is used for venting.

[0069] In this embodiment, the housing 1 has at least two spaced through holes 14, both of which connect the sound-conducting cavity 13 to the outside space. A sound-conducting medium is injected into at least one of the through holes 14, allowing the medium to enter the sound-conducting cavity 13 and displacing the air in the cavity 13 from at least the other through hole 14. This makes the injection of the sound-conducting medium smoother, reduces the injection waiting time, and improves the measurement efficiency of the measuring device 100.

[0070] In an embodiment of the present invention, the housing 1 includes a first housing 15 and a second housing 16, the first housing 15 and the second housing 16 are detachably and sealingly connected to form a receiving cavity, and the first housing 15 has a first opening 11.

[0071] In this embodiment, the housing 1 includes a detachably connected first housing 15 and second housing 16. The first housing 15 and the second housing 16 enclose a receiving cavity, and can directly clamp the sound-transmitting plate 2, the pad 4, and the thermochromic element 3 between the first housing 15 and the second housing 16. This eliminates the need for additional connecting parts or connection methods between the sound-transmitting plate 2 and the housing 1, thereby improving the disassembly efficiency of the sound-transmitting plate 2 and the thermochromic element 3, and thus improving the measurement efficiency of the measuring device 100. The sealing connection between the first housing 15 and the second housing 16 can be achieved by using a sealing ring or by using an extended sealing line such as a plug-in connection.

[0072] In an embodiment of the present invention, a sealing groove 161 is provided on the edge surface of the second housing 16 facing the first housing 15 and / or the edge surface of the first housing 15 facing the second housing 16. A sealing member 5 is provided in the sealing groove 161. The first housing 15 is connected to the second housing 16 so that the sealing member 5 is pressed against the bottom of the sealing groove 161.

[0073] In this embodiment, the second housing 16 has a sealing groove 161, which is formed on the edge surface of the second housing 16. A sealing element 5 is provided within the sealing groove 161. The sealing element 5 can be a sealing ring or a sealing strip, etc. When the first housing 15 and the second housing 16 are connected as a single unit, the first housing 15 can press the sealing element 5 against the bottom of the sealing groove 161 to improve the sealing effect. It is understood that in another embodiment, the sealing groove 161 is formed on the edge surface of the first housing 15, and a sealing element 5 is provided within the sealing groove 161. The sealing element 5 can be a sealing ring or a sealing strip, etc. When the first housing 15 and the second housing 16 are connected as a single unit, the second housing 16 can press the sealing element 5 against the bottom of the sealing groove 161 to improve the sealing effect. It is understood that in other embodiments, the sealing groove 161 may be formed at the opening edge of the first housing 15, or it may be partially formed at the opening edge of the first housing 15 and partially formed at the opening edge of the second housing 16, so that the sealing groove 161 is formed by the connection of the first housing 15 and the second housing 16.

[0074] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A measuring device for measuring the focal energy of an ultrasonic treatment head, characterized in that, The measuring device includes: A housing having a receiving cavity filled with a sound-conducting medium; and A thermochromic element, wherein the thermochromic element is disposed in the receiving cavity; The cavity wall of the receiving cavity, which is used to fit the treatment surface of the ultrasonic treatment head, is made of a sound-permeable material. The cavity wall is used to receive the ultrasonic energy emitted by the ultrasonic treatment head. The ultrasonic energy passes through the sound-conducting medium to the thermochromic element, which is used to display the distribution of the ultrasonic energy.

2. The measuring device as described in claim 1, characterized in that, The thickness of the cavity wall is 0.5 mm to 1.5 mm; Alternatively, the thickness of the cavity wall is 1.5 mm to 13 mm; Alternatively, the thickness of the cavity wall is 13 mm to 25 mm.

3. The measuring device as described in claim 1, characterized in that, The thickness of the thermochromic element is more than 1.5 times the maximum distance between the -6dB points on both sides of the maximum value of the square integral of the pulse sound pressure on the acoustic beam axis of the ultrasonic treatment head.

4. The measuring device as described in claim 1, characterized in that, The cavity wall, which is used to fit the treatment surface of the ultrasonic treatment head, is made of a non-sound-permeable material.

5. The measuring device as described in claim 1, characterized in that, The housing has a first opening, and the measuring device also includes a sound-transmitting plate. The sound-transmitting plate is detachably fitted with the first opening to form the cavity wall for fitting the treatment surface of the ultrasonic treatment head. The surface of the sound-transmitting plate facing away from the receiving cavity is used to fit the treatment surface of the ultrasonic treatment head and receive the ultrasonic energy emitted by the ultrasonic treatment head. The sound-permeable panel is made of transparent acrylic or glass.

6. The measuring device as described in claim 5, characterized in that, The raw materials for preparing the thermochromic component include epoxy resin and thermochromic powder.

7. The measuring device as described in claim 5, characterized in that, The bottom wall of the receiving cavity has a second opening, and the thermochromic element covers the second opening.

8. The measuring device as described in any one of claims 5 to 7, characterized in that, There are multiple acoustic panels and multiple thermochromic elements. Any two acoustic panels have different thicknesses, and any two thermochromic elements have different thicknesses. One acoustic panel covers the first opening, and one thermochromic element is located in the receiving cavity.

9. The measuring device as described in any one of claims 5 to 7, characterized in that, The sound-permeable plate and the thermochromic element are both detachably connected to the receiving cavity. The measuring device also includes a pad, which is located between the edge of the sound-permeable plate and the edge of the thermochromic element. The sound-permeable plate, the pad, and the thermochromic element together form a sound-guiding cavity, which is filled with the sound-guiding medium.

10. The measuring device as claimed in claim 9, characterized in that, The housing has a through hole, one end of which is connected to the sound-guiding cavity and the other end of which is connected to the outside. The sound-guiding medium can be filled into the sound-guiding cavity through the through hole. The thermochromic element and / or the pad are provided with a flow channel, which is used to connect the through hole and the sound-guiding cavity.

11. The measuring device as claimed in claim 10, characterized in that, The number of through holes is at least two, and at least two through holes are spaced apart in the housing. At least one through hole is used to inject the sound-conducting medium, and at least another through hole is used to exhaust air.

12. The measuring device according to any one of claims 5 to 7, characterized in that, The housing includes a first housing and a second housing, the first housing and the second housing being detachably and sealingly connected to form the receiving cavity, and the first housing having the first opening.

13. The measuring device as claimed in claim 12, characterized in that, The second housing has a sealing groove on its edge surface facing the first housing and / or the first housing has a sealing groove on its edge surface facing the second housing. A sealing element is provided in the sealing groove. The first housing is connected to the second housing so that the sealing element is pressed against the bottom of the sealing groove.

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