Tissue heating device

Abstract

The present invention relates to a tissue heating device, comprising: a body; a panel, used for contacting a tissue surface, installed at one end of the body and rotatable relative to the body; at least one working electrode, fixed on the panel, used for emitting radio frequency to heat the tissue surface; at least one cooling component, fixed on the panel and located at a different position from the working electrode. In the embodiment of the present invention, the working electrode and cooling component fixed on the panel will rotate around the rotation center of the panel at the same angular velocity as the panel. In this way, the effect of heating and cooling the surface of the tissue covered by the panel can be achieved, and the heat of the tissue surface can be quickly taken away, ensuring the effective heating of the deep fat tissue below the tissue surface and improving the comfort.

Description

Technical Field

[0001] The present invention relates to the field of medical cosmetic equipment, and in particular to a tissue heating device. Background Art

[0002] Radiofrequency (RF), also known as radiofrequency current, acts on tissues, such as human skin tissue. High-frequency electromagnetic waves will act on the fat tissue under the skin tissue. The fat tissue cells will produce resonance, friction, swing and other movements, causing the fat molecules in the fat cells to be broken down into small molecules, which are then excreted from the body through metabolism.

[0003] In the prior art, the mechanism used to fit the outer surface of the tissue in the tissue heating device will use a long-term heating method in order to effectively produce ablation or metabolism on deep-level tissues, such as fat tissue. As the heating time increases, the heat accumulates and affects the fat tissue. Usually, the closer to the surface of the tissue during radio frequency heating, the higher the temperature, and the pain nerve endings are distributed in the epidermis. Therefore, in order to prevent burns caused by long-term heating and to reduce the pain caused by heat, the epidermis can be cooled during heating, such as by contact conduction cooling. Interval heating can also be used, that is, heating for a period of time and then stopping for a period of time to reduce the disadvantages of continuous heating. This method will affect the heating efficiency, and thus affect the treatment efficiency of deep-level tissues. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention discloses a tissue heating device.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A tissue heating device comprises: a body; a panel for contacting a tissue surface, mounted on one end of the body and rotatable relative to the body; at least one working electrode, fixed on the panel and used to emit radio frequency to heat the tissue surface; and at least one cooling component, fixed on the panel and located at a position different from that of the working electrode.

[0007] A further technical solution is that the area of ​​the refrigeration component contacting the tissue is larger than the area of ​​the electrode contacting the tissue.

[0008] A further technical solution is that the tissue heating device also includes a loop electrode; the loop electrode is arranged away from the working electrode to form a monopolar loop radio frequency.

[0009] A further technical solution is that the working electrode is circular.

[0010] A further technical solution is that the refrigeration component is a semiconductor refrigeration component.

[0011] Its further technical solution is that the semiconductor refrigeration component includes a semiconductor refrigeration plate, a cold end substrate and a hot end substrate; the semiconductor refrigeration plate includes a plurality of thermocouple pairs connected in series; the cold end substrate is fixed to the cooling end of the thermocouple pair for contacting the tissue surface; the hot end substrate is fixed to the heat dissipation end of the thermocouple pair for dissipating heat to the outside of the tissue heating device.

[0012] A further technical solution is that the tissue heating device also includes a control system for controlling the operation of the tissue heating device; the working electrode is connected to the control system cable, and the panel rotates relative to the body in a resettable manner; or, the working electrode is connected to the control system slip ring, and the panel rotates relative to the body in a continuous rotation or a resettable rotation.

[0013] A further technical solution is that the refrigeration component cools the electrode by cooling the side away from the tissue surface through a refrigerant.

[0014] A further technical solution is that the tissue heating device also includes a control system for controlling the operation of the tissue heating device; the working electrode is connected to the control system cable, and the panel rotates relative to the body in a resettable rotation.

[0015] A further technical solution is that the tissue heating device also includes a temperature sensor; the temperature sensor is installed on the panel and arranged between the working electrode and the refrigeration component, and is used to measure the temperature of the tissue surface.

[0016] The beneficial effects of the embodiments of the present invention are as follows:

[0017] In the embodiment of the present invention, an installation method is proposed in which both the working electrode and the cooling assembly are fixed on the panel. When the panel rotates relative to the body, the working electrode and the cooling assembly fixed on the panel will rotate around the rotation center of the panel at the same angular velocity as the panel. In this way, the surface of the tissue covered by the panel can be heated and cooled at the same time, and the heat on the surface of the tissue can be quickly taken away, ensuring the effective heating of the deep fat tissue below the surface of the tissue, thereby improving the comfort level. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the structure of a tissue heating device according to an embodiment of the present invention.

[0019] Figure 2 Schematic diagram of the side of the panel used to fit the tissue in an embodiment of the present invention.

[0020] Figure 3It is a schematic diagram of the structure of a semiconductor refrigeration component in an embodiment of the present invention.

[0021] Figure 4 Schematic diagram of a control system in an embodiment of the present invention. DETAILED DESCRIPTION

[0022] The specific implementation of the present invention will be described below in conjunction with the accompanying drawings.

[0023] Figure 1 Schematic diagram of the structure of a tissue heating device according to an embodiment of the present invention. Figure 2 FIG. 1 is a schematic diagram of a side surface of a panel in an embodiment of the present invention. Figure 1 , Figure 2 As shown, the tissue heating device includes a body 1, a panel 2, a working electrode 3 and a cooling assembly 4. The panel 2 is used to contact the outer surface of the tissue. The tissue is generally skin tissue and fat tissue under the skin. The panel 2 is mounted on one end of the body 1 and can rotate relative to the body 1. The working electrode 3 is fixed on the panel 2 and is used to emit radio frequency to heat the tissue. The cooling assembly 4 is fixed on the panel. When the panel 2 rotates relative to the body 1, the working electrode 3 and the cooling assembly 4 fixed on the panel 2 will rotate around the rotation center of the panel 2 at the same angular velocity as the panel 2. In this way, the effect of heating and cooling the surface of the tissue covered by the panel 2 can be achieved, and the heat on the surface of the tissue can be quickly taken away, ensuring the effective heating of the deep fat tissue below the surface of the tissue, thereby improving the comfort.

[0024] Figure 2 In the embodiment, the working electrode 3 and the cooling assembly 4 are each provided with one. It is easy to know that the working electrode 3 and the cooling assembly 4 can also be provided with multiple ones. Preferably, the working electrode 3 and the cooling assembly 4 are provided at intervals on the panel 2. While improving the heating efficiency, the comfort is further improved.

[0025] This embodiment provides a refrigeration assembly 4 that rotates together with the working electrode 3. Compared with the long-term heating or intermittent heating methods in the prior art, it can more effectively remove the heat from the tissue surface, but does not affect the effectiveness of heating deep below the tissue surface.

[0026] Preferably, the area of ​​the refrigeration component 4 contacting the tissue is larger than the area of ​​the working electrode 3 contacting the tissue. Due to the heat conduction effect when the working electrode 3 is heated, heat will also accumulate around the heated position of the working electrode 3. Therefore, if the area of ​​the refrigeration component 4 is larger, the tissue surface contacted by the panel 2 can be cooled more fully.

[0027] Preferably, the refrigeration component 4 is a semiconductor refrigeration component. Figure 3 Schematic diagram of the structure of the semiconductor refrigeration component in the embodiment of the present invention. Figure 3As shown, the semiconductor refrigeration assembly includes a semiconductor refrigeration sheet 41, a cold end substrate 42 and a hot end substrate 43. The semiconductor refrigeration sheet 41 includes a plurality of thermocouple pairs connected in series. The cold end substrate 42 is fixed to the cooling end of the thermocouple pair. The cold end substrate 42 is used to contact the tissue surface. The hot end substrate 43 is fixed to the heat dissipation end of the thermocouple pair. The hot end substrate 43 dissipates heat outside the tissue heating device. The thermocouple pair includes a P-type semiconductor and an N-type semiconductor. The first end of the P-type semiconductor and the first end of the N-type semiconductor are connected through a connecting plate. The second end of the P-type semiconductor is connected to the second end of the N-type semiconductor of another thermocouple pair through a connecting plate. The semiconductor refrigeration assembly uses the Peltier Effect to achieve a refrigeration function. When a DC voltage is applied to the semiconductor refrigeration sheet, electrons and holes move in opposite directions under the action of the electric field, thereby absorbing heat at the connecting sheet located near the cold end substrate 42 to achieve a refrigeration effect, and releasing heat at the connecting sheet located near the hot end substrate 43 to achieve a heat dissipation effect. The cold end substrate 42 and the hot end substrate 43 can be made of ceramic, glass or metal with good thermal conductivity to reduce thermal resistance and improve heat conduction efficiency. Further, an isolation layer can be added between the cold end substrate 42 and the hot end substrate 43 to prevent moisture from condensing into the thermoelectric cooler cavity and isolate heat transfer from the hot end to the cold end.

[0028] The refrigeration component 4 in this embodiment is preferably a semiconductor refrigeration component, which uses the thermoelectric effect to generate a temperature difference when powered on, can quickly cool down, and is safer to use in a rotating structure, avoiding the risk of pipeline rupture and thus also avoiding troubles such as leakage.

[0029] Optionally, the cooling method of the cooling component 4 can also be a method of cooling the side of the electrode away from the tissue surface by using a refrigerant, which can be air cooling, refrigerant cooling or water cooling. Both air cooling and water cooling take away the heat of the working electrode 3 by heat conduction. Refrigerant cooling is to reduce the temperature of the working electrode 3 by the instantaneous vaporization of the refrigerant.

[0030] Furthermore, in this embodiment, the tissue heating device also includes a separate loop electrode, which is arranged away from the working electrode 3 to form a monopolar loop radio frequency. Compared with other electrode settings, the heating depth is deeper and can fully heat the fat tissue under the skin.

[0031] Furthermore, in the present embodiment, the working electrode 3 is preferably circular, as the circular working electrode 3 has a more uniform thermal distribution and better thermal stability. However, those skilled in the art will appreciate that the working electrode 3 may also be in other suitable shapes such as a square with rounded corners, a polygon, or the like.

[0032] Furthermore, the panel 2 is also provided with a temperature sensor 5, which is preferably placed between the working electrode 3 and the cooling assembly 4, and is spaced apart from the working electrode 3 and the cooling assembly 4, to detect the temperature of the tissue surface to which the panel 2 is attached, so as to dynamically adjust the temperature of the side of the cooling assembly 4 contacting the tissue surface according to the temperature signal. Figure 2 As shown, when there is one working electrode 3 and one cooling assembly 4, two temperature sensors 5 can be provided, which are respectively located at the intervals on both sides of the working electrode 3 and the cooling assembly 4. Correspondingly, when there are multiple groups of working electrodes 3 and cooling assembly 4, multiple temperature sensors 5 can also be selected. As the heating time increases, more heat is accumulated inside the tissue, and the tissue surface is more likely to heat up. At this time, when the temperature sensor 5 detects a temperature increase signal, it is transmitted to the control system to increase the power of the cooling assembly 4 and reduce the temperature.

[0033] In order to control the operation of the tissue heating device, a control system is also included. Optionally, the working electrode 3 and the control system can be connected by a cable or a slip ring. The connection mode of the working electrode 3 and the control system is related to the rotation mode of the panel 2. If the panel 2 can rotate continuously relative to the fuselage 1, the connection mode of the working electrode 3 and the control system is a slip ring connection. Continuous rotation means that the panel 2 rotates continuously for multiple cycles in the same direction relative to the fuselage 1. If the panel 2 is a resettable rotation relative to the fuselage 1, the connection mode of the working electrode 3 and the control system is a cable connection or a slip ring connection. Resettable rotation means that the panel 2 rotates a predetermined angle relative to the fuselage 1 in a first direction, and then the panel 2 rotates a predetermined angle relative to the fuselage 1 in a second direction opposite to the first direction. The first direction can be clockwise, and the corresponding second direction is counterclockwise. Of course, the first direction can also be counterclockwise, and the second direction is clockwise. The predetermined angle is ≤360°. Preferably, the predetermined angle can be 180°, or 360°, or other angles less than 360°.

[0034] Furthermore, when the refrigeration component 4 is a semiconductor refrigeration component, since the semiconductor refrigeration component does not require an external refrigerant, such as an external refrigerant gas or liquid, the working electrode 3 and the control system can be connected by a cable to ensure the stability of the system, or a slip ring connection can be selected to make the panel rotate more smoothly. When the refrigeration component 4 is a method of cooling the side of the working electrode away from the tissue surface by using a refrigerant, such as air cooling, refrigerant cooling or water cooling, since the refrigerant needs to be transmitted, only a cable connection can be selected. Correspondingly, when the refrigeration component 4 is a semiconductor refrigeration component, the panel 2 can choose to rotate continuously or resettably relative to the body 1. When the refrigeration component 4 is a method of cooling the side of the working electrode 3 away from the tissue surface by using a refrigerant, due to the limitations of the cable connection, the panel 2 is set to a resettable rotation relative to the body 1.

[0035] Figure 4 Schematic diagram of a control system in an embodiment of the present invention. Figure 4 As shown, the tissue heating device also includes a control system, which includes a main control board and a power board. The control system is used to control the operation of the tissue heating device.

[0036] The main control board includes a processor, a motor control circuit, a temperature detection circuit and a refrigeration control circuit. The processor sends a control signal, receives a temperature feedback signal, and adjusts the control signal according to the temperature feedback signal. The motor control circuit is used to receive the control signal of the processor and control the rotation of the panel. Generally, the motor control circuit converts the control signal into a signal for controlling the rotation direction and the number of rotations of the motor. The motor works according to this signal and drives the panel to rotate. The temperature detection circuit is used to receive the control signal of the processor and control the temperature sensor to detect the temperature of the tissue surface. The refrigeration control circuit is used to receive the control signal of the processor and control the refrigeration of the refrigeration component. The processor control signal received by the refrigeration control circuit is generated based on the temperature signal of the tissue surface fed back by the temperature sensor. The refrigeration control circuit can control the working power of the refrigeration component according to the temperature of the tissue surface.

[0037] The power source control circuit in the power board receives the control signal from the processor and controls the operation of the power source generation circuit, thereby controlling the working state of the power source power supply to control the generation of radio frequency, including the switch state, the state of the emitted radio frequency power, etc.

[0038] The control method of the control system for the tissue heating device or its specific circuit structure is not the content to be protected by the present invention. Those skilled in the art can implement it using existing technologies and will not be described in detail.

[0039] The above description is an explanation of the present invention, not a limitation of the present invention. The scope of the present invention is defined in the claims. The present invention may be modified in any form without violating the basic structure of the present invention.

Claims

1. A tissue heating device, characterized in that: include: body; A panel, used for contacting a tissue surface, mounted on one end of the body and rotatable relative to the body; At least one working electrode is fixed on the panel and is used to emit radio frequency to heat the tissue surface; at least one cooling component is fixed on the panel and is located at a position different from the working electrode.

2. The tissue heating device according to claim 1, characterized in that: The area of ​​the cooling component contacting the tissue is larger than the area of ​​the electrode contacting the tissue.

3. The tissue heating device according to claim 1, characterized in that: The tissue heating device also includes a loop electrode; the loop electrode is arranged away from the working electrode to form a monopolar loop radio frequency.

4. The tissue heating device according to claim 1, characterized in that: The working electrode is circular.

5. The tissue heating device according to claim 1, characterized in that: The refrigeration component is a semiconductor refrigeration component.

6. The tissue heating device according to claim 5, characterized in that: The semiconductor refrigeration component includes a semiconductor refrigeration plate, a cold end substrate and a hot end substrate; the semiconductor refrigeration plate includes a plurality of thermocouple pairs connected in series; the cold end substrate is fixed to the cooling end of the thermocouple pair for contacting the tissue surface; the hot end substrate is fixed to the heat dissipation end of the thermocouple pair for dissipating heat to the outside of the tissue heating device.

7. The tissue heating device according to claim 5, characterized in that: The tissue heating device also includes a control system for controlling the operation of the tissue heating device; the working electrode is connected to the control system cable, and the panel rotates relative to the body in a resettable manner; or, the working electrode is connected to the control system slip ring, and the panel rotates relative to the body in a continuous rotation or a resettable rotation.

8. The tissue heating device according to claim 1, characterized in that: The refrigeration component cools the electrode by cooling the side away from the tissue surface through a refrigerant.

9. The tissue heating device according to claim 8, characterized in that: The tissue heating device also includes a control system for controlling the operation of the tissue heating device; the working electrode is connected to the control system cable, and the panel rotates relative to the body in a resettable manner.

10. The tissue heating device according to claim 1, characterized in that: The tissue heating device also includes a temperature sensor; the temperature sensor is mounted on the panel and arranged between the working electrode and the cooling assembly, and is used to measure the temperature of the tissue surface.

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