Ultrasonic treatment head
By introducing a thermally conductive cylinder and a heat-dissipating shell into the ultrasound treatment head, the problem of low heat dissipation efficiency of existing ultrasound treatment heads is solved, extending the physical therapy time and improving the treatment effect.
Patent Information
- Application Number
- CN202420766004.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-12
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-04-12
AI Technical Summary
The existing ultrasound treatment head has low heat dissipation efficiency, resulting in short physical therapy time and poor treatment effect. Due to the concentrated structure, poor heat dissipation effect, which is easy to cause burns.
An ultrasonic treatment head was designed, using a thermally conductive cylinder to contact the ultrasonic transducer, and through the heat dissipation shell, the heat is transmitted to the heat dissipation shell, and then heat exchange with the air through the heat dissipation shell, which improves the The heat dissipation efficiency of ultrasound treatment head.
By improving the heat dissipation efficiency of the ultrasound treatment head, it extends the physical therapy time, improves the treatment effect, and reduces the temperature increase speed of the ultrasound transducer, avoiding the risk of burns.
Smart Images
Figure CN222427020U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of ultrasonic therapy, and in particular to an ultrasonic therapy head. Background Art
[0002] Ultrasound is currently widely used in the treatment of soft tissue injuries and chronic pain. Studies have shown that the ultrasonic thermal effect can increase blood circulation, accelerate metabolism, improve local tissue nutrition, and enhance enzyme activity. Ultrasonic mechanical effects can soften tissues, enhance penetration, improve metabolism, promote blood circulation, and stimulate the nervous system and cell function. Using these biological effects to treat human tissues is the so-called ultrasound therapy.
[0003] The ultrasonic output intensity of the current physical therapy ultrasound head is usually 1W / cm 2 ~3W / cm 2 Since the transducer of the ultrasonic therapy head generates heat when working, and the current ultrasonic therapy head has a centralized structure and poor heat dissipation effect, under such sound intensity, the physical treatment time generally needs to be controlled within a short time, and the physical treatment head needs to be moved during physical treatment to avoid burns, which makes the treatment inconvenient, affects the effective treatment time, and thus leads to poor treatment effect. Utility Model Content
[0004] In view of the problems existing in the background technology, the present application provides an ultrasonic therapy head, which can improve the heat dissipation efficiency of the ultrasonic therapy head, increase the treatment time of the ultrasonic therapy head, and improve the treatment effect.
[0005] According to one aspect of the utility model, an ultrasonic treatment head is provided, comprising: an ultrasonic transducer formed with a treatment end; a heat-conducting column disposed on a side of the ultrasonic transducer away from the treatment end and in contact with the ultrasonic transducer; and a heat dissipation shell disposed on a side of the heat-conducting column away from the ultrasonic transducer and in contact with the heat-conducting column.
[0006] By using the ultrasonic therapy head in the technical solution, a heat-conducting column is set to contact the ultrasonic transducer, and the heat-conducting column is made to contact the heat dissipation shell. When using the ultrasonic therapy head, the treatment end is connected to the coupling post in the form of a knob. A portion of the heat generated by the ultrasonic transducer is continuously conducted to the heat dissipation shell through the heat-conducting column, and then the heat is released through heat exchange between the heat dissipation shell and the air, thereby improving the heat dissipation efficiency of the ultrasonic therapy head, effectively reducing the temperature increase rate of the ultrasonic transducer, thereby increasing the physical treatment time of the ultrasonic therapy head and improving the treatment effect.
[0007] In addition, the ultrasonic therapy head according to the present application may also have the following additional technical features:
[0008] In some embodiments of the utility model, the ultrasonic transducer includes: an outer shell, one side of which is open; a lens mounted in the outer shell; and a piezoelectric ceramic sheet mounted on the lens, one side of which faces the opening of the outer shell.
[0009] In some implementations of the present invention, the heat-conducting column is close to the piezoelectric ceramic sheet.
[0010] In some embodiments of the utility model, the ultrasonic therapy head further includes: a driving circuit board, the driving circuit board is assembled in the outer shell, the driving circuit board is located on the side of the opening of the piezoelectric ceramic sheet facing the outer shell, and a through hole is provided on the driving circuit board for the heat conductive column to pass through.
[0011] In some embodiments of the present invention, the driving circuit board includes: a temperature monitoring module, which is used to monitor the temperature of the ultrasonic transducer and adjust the ultrasonic transducer to work within a set temperature range.
[0012] In some embodiments of the present utility model, the heat dissipation housing is connected to the opening of the outer shell, and a mounting cavity is formed between the heat dissipation housing and the outer shell.
[0013] In some embodiments of the present invention, the ultrasonic therapy head further comprises: a flexible cable, one end of which is connected to the driving circuit board and fixed by a snap-fit structure formed between the heat dissipation shell and the outer shell.
[0014] In some embodiments of the present invention, a thermally conductive silicone grease sheet is sandwiched between the thermally conductive column and the ultrasonic transducer; and / or a thermally conductive silicone grease sheet is sandwiched between the thermally conductive column and the heat dissipation housing.
[0015] In some embodiments of the present invention, the heat-conducting column is a copper column, and the surface of the copper column is polished smooth.
[0016] In some implementations of the present invention, the heat dissipation housing is made of aluminum alloy. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:
[0018] Figure 1 This is a schematic diagram of the overall structure of the ultrasonic treatment head according to the embodiment of the present application;
[0019] Figure 2 This is a schematic diagram of the internal structure of an ultrasonic treatment head according to an embodiment of the present application;
[0020] Figure 3 It is a schematic diagram of the structure of the ultrasonic transducer according to an embodiment of the present application.
[0021] The reference numerals in the accompanying drawings represent the following: 1. flexible cable; 2. heat dissipation housing; 4. thermal grease sheet; 5. thermal conductive column; 6. drive circuit board; 7. piezoelectric ceramic sheet; 8. lens; 9. outer housing. DETAILED DESCRIPTION
[0022] It should be clear that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.
[0023] When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are only examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.
[0024] In the description of the present application, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances. In addition, in the description of the present application, unless otherwise specified, "multiple" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.
[0025] The ultrasonic therapy head provided in the embodiment of the present application is described below with reference to the accompanying drawings.
[0026] The present application discloses an ultrasonic treatment head. Figure 1-3 As shown, the ultrasonic treatment head includes an ultrasonic transducer, a thermally conductive column 5 and a heat dissipation shell 2; wherein the ultrasonic transducer is formed with a treatment end; the thermally conductive column 5 is arranged on a side of the ultrasonic transducer away from the treatment end, and the thermally conductive column 5 is in contact with the ultrasonic transducer; the heat dissipation shell 2 is arranged on a side of the thermally conductive column 5 away from the ultrasonic transducer, and the heat dissipation shell 2 is in contact with the thermally conductive column 5.
[0027] By using the ultrasonic therapy head in the technical solution, the heat-conducting column 5 is set to contact the ultrasonic transducer, and the heat-conducting column 5 is made to contact the heat dissipation shell 2. Since the contact area between the heat dissipation shell 2 and the air is large, the heat dissipation shell 2 has a high heat dissipation capacity. Therefore, when using the ultrasonic therapy head, the treatment end is connected to the coupling post in the form of a knob, and a part of the heat generated by the ultrasonic transducer is continuously conducted to the heat dissipation shell 2 through the heat-conducting column 5, and then the heat is released through heat exchange between the heat dissipation shell 2 and the air, thereby improving the heat dissipation efficiency of the ultrasonic therapy head, thereby effectively reducing the temperature increase rate of the ultrasonic transducer, thereby increasing the physical treatment time of the ultrasonic therapy head and improving the treatment effect.
[0028] In some embodiments of the present invention, Figure 3 As shown, the ultrasonic transducer includes an outer shell 9, a lens 8 and a piezoelectric ceramic sheet 7; wherein one side of the outer shell 9 is open; the lens 8 is assembled in the outer shell 9; the piezoelectric ceramic sheet 7 is assembled on the lens 8, and one side of the piezoelectric ceramic sheet 7 faces the opening of the outer shell 9.
[0029] It should be noted that the piezoelectric ceramic sheet 7 and the lens 8 can be combined together by glue, and then the lens 8 can be fixed on the outer shell 9 by glue to form an integral ultrasonic transducer structure.
[0030] In this embodiment, when an external voltage is applied to the piezoelectric ceramic sheet 7, the distribution of positive and negative charges therein will change, thereby causing mechanical stress to be generated inside the piezoelectric ceramic sheet 7. This mechanical stress causes the piezoelectric ceramic sheet 7 to undergo slight deformation and vibration, namely, the piezoelectric effect, thereby converting electrical energy into mechanical vibration, which is then focused and controlled through the lens 8 in the direction of ultrasonic propagation, thereby concentrating energy, enhancing penetration depth and improving treatment effects.
[0031] Furthermore, the lens 8 and the outer shell 9 can be made of plastic materials respectively. Specifically, the outer shell 9 can be made of ABS material.
[0032] Furthermore, a fixing structure is designed in the middle of the outer shell 9, which is fixed to the treatment site after being connected with a matching connecting piece.
[0033] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, the heat conductive column 5 is close to the piezoelectric ceramic sheet 7 .
[0034] When the piezoelectric ceramic sheet 7 works dynamically, heat is generated. Arranging the heat-conducting column 5 close to the piezoelectric ceramic sheet 7 can better absorb the heat at the heat source, thereby effectively reducing the temperature of the ultrasonic transducer.
[0035] In some embodiments of the present invention, Figure 2As shown, the ultrasonic therapy head also includes a driving circuit board 6, which is assembled in the outer shell 9. The driving circuit board 6 is located on the side of the opening of the piezoelectric ceramic sheet 7 facing the outer shell 9. A through hole is opened on the driving circuit board 6 for the heat-conducting column 5 to pass through.
[0036] In this embodiment, the driving circuit board 6 is powered by an adapted host to drive the ultrasonic transducer to generate ultrasonic waves for treatment. The driving circuit board 6 is mounted on the side of the opening of the piezoelectric ceramic sheet 7 facing the outer shell 9, and a through hole is opened on the driving circuit board 6 for the heat-conducting column 5 to pass through. Not only is the structure compact, but the through hole of the driving circuit board 6 also has a certain stabilizing effect on the heat-conducting column 5, while also reducing the impact on the heat dissipation of the ultrasonic transducer.
[0037] Furthermore, the ultrasonic transducer has an operating frequency of 0.5 to 3 MHz and an output effective sound intensity of 0 to 0.5 W / cm 2 .
[0038] In some embodiments of the present invention, the driving circuit board 6 includes a temperature monitoring module.
[0039] Furthermore, the driving circuit board 6 also includes a voltage conversion module, a frequency generation module and a power amplification module.
[0040] In this embodiment, the voltage conversion module is used to convert the voltage of the supporting host into the voltage required by the frequency generation module, the power amplification module, and the temperature monitoring module; the frequency generation module is used to generate the frequency required by the corresponding ultrasonic transducer; the power amplification module is used to amplify the signal generated by the frequency generation module so as to drive the ultrasonic transducer; the temperature monitoring module is used to monitor the temperature inside the ultrasonic transducer, and adjust the transducer to work within the set temperature range and adjust the indicator light to display the corresponding working status.
[0041] It should be noted that the 5V voltage output by the driving circuit board 6 is input to the frequency generating module, and the frequency generating module generates a high-frequency square wave signal. This embodiment mainly uses three frequencies of 1MHz, 1.5MHz, and 3MHz. The driving voltage conversion module converts the 5V voltage output by the driving circuit board 6 into the required voltage. The temperature monitoring module is used to monitor the temperature inside the ultrasonic transducer. It adopts a hysteresis temperature range, which includes upper and lower temperature thresholds. During operation, when the temperature rises above the upper temperature threshold, such as 45°C, the output can be stopped. During the cooling process, when the temperature drops to the lower temperature threshold, such as 35°C, the output can be started again. Thereby, the treatment head operates within a safe temperature range.
[0042] In some embodiments of the present invention, Figure 1 and Figure 3As shown, the heat dissipation housing 2 is connected to the opening of the outer housing 9, and a mounting cavity is formed between the heat dissipation housing 2 and the outer housing 9.
[0043] In this embodiment, the lens 8, the piezoelectric ceramic sheet 7, the driving circuit board 6 and the heat-conducting column 5 are assembled in the mounting cavity formed between the heat dissipation housing 2 and the outer housing 9, forming a stable overall structure, which is convenient for use.
[0044] In some embodiments of the present invention, Figure 1 and Figure 3 As shown, the ultrasonic therapy head also includes a flexible cable 1, one end of which is connected to the driving circuit board 6, and this end of the flexible cable 1 is fixed by a snap-fit structure formed between the heat dissipation shell 2 and the outer shell 9, and the other end of the flexible cable 1 is connected to the adapted host output port.
[0045] In this embodiment, the driving circuit board 6 is powered by the flexible cable 1. The use of the flexible cable 1 can conveniently move the ultrasonic treatment head, thereby facilitating the implementation of treatment within a certain range and making the operation more portable.
[0046] In some embodiments of the present invention, Figure 2 As shown, a thermally conductive silicone grease sheet 4 is sandwiched between the thermally conductive column 5 and the ultrasonic transducer; and / or a thermally conductive silicone grease sheet 4 is sandwiched between the thermally conductive column 5 and the heat dissipation housing 2 .
[0047] In this embodiment, a thermally conductive silicone grease sheet 4 is sandwiched between the thermally conductive column 5 and the piezoelectric ceramic sheet 7 and between the thermally conductive column 5 and the heat dissipation housing 2 .
[0048] The thermal grease sheet 4 can reduce the contact thermal resistance between the piezoelectric ceramic sheet 7 and the thermally conductive column 5 and between the thermally conductive column 5 and the heat dissipation housing 2, thereby improving the efficiency of heat transfer from the piezoelectric ceramic sheet 7 to the heat dissipation housing 2, thereby further improving the heat dissipation efficiency of the ultrasonic transducer.
[0049] Furthermore, the diameter of the thermal grease sheet 4 is 12-18 mm.
[0050] It should be understood that the diameter of the thermal grease sheet 4 can be selected according to the specifications of the piezoelectric ceramic sheet 7 and the thermally conductive column 5 .
[0051] In some embodiments of the present invention, Figure 2 As shown, the heat-conducting column 5 is made of a copper column, and the surface of the copper column is polished smooth.
[0052] The copper column has a high thermal conductivity, ensuring that the piezoelectric ceramic sheet 7 transfers heat to the heat dissipation housing 2 at a high rate. The copper column surface is polished smoothly, which can reduce the convective heat transfer coefficient and reduce convective heat loss, thereby reducing the heat diffusion of the copper column into the installation cavity.
[0053] In some embodiments of the present invention, the heat dissipation housing 2 is made of aluminum alloy.
[0054] The heat dissipation housing 2 is made of aluminum alloy with a relatively low density. The heat dissipation housing 2 made of aluminum alloy has excellent heat dissipation performance and can quickly dissipate heat.
[0055] Furthermore, the heat dissipation housing 2 includes a window for displaying the working status of the treatment head.
[0056] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. An ultrasonic treatment head, characterized in that: include: an ultrasonic transducer formed with a treatment end; A heat-conducting column, disposed on a side of the ultrasonic transducer away from the treatment end and in contact with the ultrasonic transducer; The heat dissipation housing is arranged on a side of the heat-conducting column away from the ultrasonic transducer and is in contact with the heat-conducting column.
2. The ultrasonic treatment head according to claim 1, characterized in that: The ultrasonic transducer comprises: An outer shell, one side of which is open; A lens is mounted in the outer shell; A piezoelectric ceramic sheet is mounted on the lens, with one side of the piezoelectric ceramic sheet facing the opening of the outer shell.
3. The ultrasonic treatment head according to claim 2, characterized in that: The heat-conducting column is close to the piezoelectric ceramic sheet.
4. The ultrasonic treatment head according to claim 3, characterized in that: Also includes: A driving circuit board is installed in the outer shell, the driving circuit board is located on a side of the opening of the piezoelectric ceramic sheet facing the outer shell, and a through hole is provided on the driving circuit board for the heat-conducting column to pass through.
5. The ultrasonic treatment head according to claim 4, characterized in that: The driving circuit board comprises: The temperature monitoring module is used to monitor the temperature of the ultrasonic transducer and adjust the ultrasonic transducer to operate within a set temperature range.
6. The ultrasonic treatment head according to claim 4, characterized in that: The heat dissipation shell is connected to the opening of the outer shell, and a mounting cavity is formed between the heat dissipation shell and the outer shell.
7. The ultrasonic treatment head according to claim 6, characterized in that: Also includes: One end of the flexible cable is connected to the driving circuit board and is fixed by a snap-fit structure formed between the heat dissipation housing and the outer housing.
8. The ultrasonic treatment head according to any one of claims 1 to 7, characterized in that: A thermally conductive silicone grease sheet is sandwiched between the thermally conductive column and the ultrasonic transducer; and / or A thermally conductive silicone grease sheet is sandwiched between the thermally conductive column and the heat dissipation housing.
9. The ultrasonic treatment head according to any one of claims 1 to 7, characterized in that: The heat-conducting column is a copper column, and the surface of the copper column is polished and smooth.
10. The ultrasonic treatment head according to any one of claims 1 to 7, characterized in that: The heat dissipation housing is made of aluminum alloy.