Scanning handpiece with TEC cooling assembly

Abstract

This invention discloses a scanning handpiece with a TEC cooling assembly, comprising a scanning handpiece mounting base, a scanning system handpiece housing mounted on the outside of the mounting base; a scanning lens disposed on one side below the mounting base; and a TEC cooling assembly disposed on the other side below the mounting base, the TEC cooling assembly having a cooling head detachably connected via a detachable structure. The scanning handpiece with the TEC cooling assembly of this invention features miniaturization, real-time cooling of the skin in the treatment area, precise temperature control, and safe and comfortable use; it reduces costs while improving treatment safety and treatment volume.

Description

Technical Field

[0001] This invention relates to the field of laser therapy handpiece technology, and more particularly to a scanning handpiece with a TEC cooling assembly. Background Technology

[0002] Laser therapy is a medical technique that utilizes the unique physical properties of lasers to precisely manipulate and treat biological tissues. In dermatology, it can remove tattoos, scars, hemangiomas, telangiectasia, and acne, and can also be used for wrinkle removal and skin rejuvenation. In some treatments, laser scanning technology is employed to improve safety, precision, and patient comfort, while maximizing treatment effectiveness. Current laser scanning technology typically incorporates a scanning galvanometer and motor into a handheld device to form a scanning system. Although scanning technology reduces the risk of thermal damage by rapidly moving the laser spot and avoiding prolonged dwell time at any one point, existing technologies employ cooling methods to lower the epidermal temperature to further protect the skin surface, reduce pain, and improve treatment comfort. Some of the most common cooling methods are described below:

[0003] 1. Cold air cooling method: Use a separate cooling device (such as a cold air blower) to blow cold air at around -10℃ onto the skin surface to dissipate heat quickly through a large air volume. However, this method has limitations and cannot be used for sensitive areas such as the ears and nose. It also requires a separate device, which increases the investment of manpower and resources.

[0004] 2. Pre-cooling and cold compress: Before treatment, use ice packs or cold compresses to pre-cool the skin, which can simply and effectively lower the skin temperature and reduce the heat effect during treatment. However, the cooling effect of this method is difficult to control precisely and the duration is limited.

[0005] 3. Cooling with a coolant spray: It can quickly cool the skin surface, but it may cause discomfort and may even require medication to relieve the discomfort.

[0006] Therefore, based on the above-mentioned technical problems, those skilled in the art urgently need to develop a scanning handpiece with a TEC cooling component. Summary of the Invention

[0007] The purpose of this invention is to provide a scanning handpiece with a TEC cooling component. By introducing TEC cooling technology, it overcomes the various shortcomings of existing cooling methods. This structure features miniaturization, real-time cooling of the skin in the treatment area during treatment, precise temperature control, and safe and comfortable use.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] The present invention provides a scanning handpiece having a TEC cooling assembly, the scanning handpiece comprising:

[0010] A scanning handpiece mounting base, on the outside of which a scanning system handpiece housing is mounted;

[0011] A scanning lens is disposed on one side below the mounting base of the scanning handpiece; and

[0012] A TEC cooling assembly is located on the other side below the scanning handpiece mounting base, and the TEC cooling assembly has a cooling head that can be detachably connected via a mounting / removing structure.

[0013] Furthermore, a handpiece light inlet tube is provided at the middle position of the scanning handpiece mounting base, and the handpiece light inlet tube passes through the scanning system handpiece housing and extends partially to the outside of the scanning system handpiece housing;

[0014] The handpiece's light inlet tube is fitted with the scanning lens, and a reflector is attached to one end of the light inlet tube.

[0015] The scanning lens is threaded to the bottom of the scanning handpiece mounting base, and the side of the scanning lens has a vent screw.

[0016] Furthermore, a TEC cooling assembly connection base is provided at the lower end of the scanning handpiece mounting base;

[0017] The upper part of the scanning handpiece mounting base is connected to an X-axis scanning galvanometer and a motor by screws, and the side of the scanning handpiece mounting base is connected to a Y-axis scanning galvanometer and a motor by screws.

[0018] The TEC cooling assembly connection base has an inlet pipe connector and an outlet pipe connector.

[0019] Furthermore, the scanning system handpiece housing is provided with a water outlet pipe, a water inlet pipe, and a handpiece wiring harness;

[0020] The water outlet pipe passes through the housing of the scanning system handpiece and is connected to the water outlet pipe connector, and the water inlet pipe passes through the housing of the scanning system handpiece and is connected to the water inlet pipe connector.

[0021] Furthermore, the TEC cooling assembly includes:

[0022] A hot-end water cooling head that is connected to the outlet pipe joint and the inlet pipe joint and installed below the TEC cooling assembly connection base;

[0023] The cold-end cooling fins are positioned relative to the hot-end water-cooling head; and

[0024] A TEC cooling chip is located between the hot-end water-cooling head and the cold-end cooling plate. The hot side of the TEC cooling chip is fixed to the hot-end water-cooling head with thermally conductive adhesive, and the cold side of the TEC cooling chip is fixed to the cold-end cooling plate with thermally conductive adhesive.

[0025] The hot-end water cooling head is connected to the water circuit of the whole machine through the water outlet pipe and the water inlet pipe to form a water circulation cooling system.

[0026] Furthermore, a temperature sensor is provided at the end of the cold-end cooling plate.

[0027] Furthermore, the mounting and dismantling structure includes:

[0028] Cooling head mounting components;

[0029] The cooling head is mounted to the end of the cooling head mounting component via a cooling head mounting pin; and

[0030] A spring washer is installed between the fixing screw at one end of the cooling head and the cooling head mounting component.

[0031] Furthermore, one end of the cooling head mounting component that mates with the cooling head mounting pin has a cooling head mounting inlet, and a cooling head fixing groove is connected to the cooling head mounting inlet;

[0032] A cooling head limiting groove is provided in the middle of the cooling head mounting component, and a cooling head anti-horizontal rotation limiting pin is provided in the cooling head limiting groove. The cooling head anti-horizontal rotation limiting pin is connected to the part of the cooling head embedded in the cooling head mounting component.

[0033] Furthermore, the control system for the scanning handpiece of the TEC cooling assembly includes:

[0034] A central processing unit (CPU) controls the light output of the light output system according to the set light output parameters.

[0035] The TEC cooling system performs cooling operations based on the output current of the central processing unit.

[0036] A water circulation system, wherein the water flow rate is adjusted according to the output current of the central processing unit;

[0037] A temperature monitoring system is provided, comprising an infrared temperature probe A, a contact probe B, and a temperature monitoring unit. The infrared temperature probe A is used to test the skin temperature at different times; the contact probe B is used to test the real-time temperature of the alloy probe; and the temperature monitoring unit is used to receive the temperature signals detected by the infrared temperature probe A and the contact probe B, and send the temperature signals to the central processing unit.

[0038] The central processing unit readjusts the operating current of the TEC cooling system based on feedback signals from the temperature monitoring system to regulate the cooling temperature of the alloy cooling head.

[0039] In the above technical solution, the scanning handpiece with a TEC cooling component provided by the present invention has the following beneficial effects:

[0040] The scanning handpiece with TEC cooling components of the present invention features miniaturization, real-time cooling of the skin in the cooling area during treatment, precise temperature control, and safe and comfortable use; it reduces costs while improving treatment safety and treatment volume. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0042] Figure 1 This is a schematic diagram of the structure of a scanning handpiece with a TEC cooling assembly provided in an embodiment of the present invention;

[0043] Figure 2 This is a schematic diagram of the structure of a scanning handpiece with a TEC cooling assembly, with the handpiece shell removed, according to an embodiment of the present invention.

[0044] Figure 3 An exploded view of the structure of a scanning system for a scanning handpiece with a TEC cooling assembly, provided in an embodiment of the present invention;

[0045] Figure 4 This is a schematic diagram of the installation and removal structure of a scanning handpiece with a TEC cooling assembly, provided in an embodiment of the present invention.

[0046] Figure 5 This is a schematic diagram of the structure of a cooling head mounting component for a scanning handpiece with a TEC cooling assembly, provided in an embodiment of the present invention.

[0047] Figure 6 A schematic diagram showing the placement of a contact temperature probe B in a scanning handpiece with a TEC cooling assembly, provided in an embodiment of the present invention.

[0048] Figure 7 A schematic diagram showing the placement of the infrared temperature probe A in a scanning handpiece with a TEC cooling assembly, provided in an embodiment of the present invention;

[0049] Figure 8A system flowchart of a control system for a scanning handpiece with a TEC cooling assembly is provided for an embodiment of the present invention.

[0050] Explanation of reference numerals in the attached figures:

[0051] 1. Scanning handpiece mounting base; 2. TEC cooling assembly; 4. Mounting and disassembly structure;

[0052] 101. Scanning system handpiece housing; 102. Handpiece light inlet tube; 103. Scanning lens; 104. Vent screw; 105. X-axis scanning galvanometer and motor; 106. Y-axis scanning galvanometer and motor; 107. Water inlet pipe connector; 108. Water outlet pipe connector; 109. Reflector;

[0053] 201. TEC cooling component connection base; 202. Cooling head; 203. Cooling system housing; 204. Hot-end water cooling fin; 205. Cold-end heat conduction fin; 206. TEC cooling fin;

[0054] 301. Hand tool wiring harness; 302. Water inlet pipe; 303. Water outlet pipe;

[0055] 401. Cooling head mounting pin; 402. Cooling head anti-horizontal rotation limit pin; 403. Cooling head mounting parts; 404. Fixing screws; 405. Elastic washers; 406. Temperature sensor; 407. Infrared temperature probe A; 408. Contact temperature probe B;

[0056] 40301, Cooling head limiting groove; 40302, Cooling head installation inlet; 40303, Cooling head fixing groove. Detailed Implementation

[0057] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0058] See Figures 1 to 8 As shown;

[0059] This embodiment discloses a scanning handpiece with a TEC cooling assembly, the scanning handpiece comprising:

[0060] A scanning handpiece mounting base 1 is provided, and a scanning system handpiece housing 101 is mounted on the outside of the scanning handpiece mounting base 1.

[0061] The scanning lens 103 is located on one side below the scanning handpiece mounting base 1; and

[0062] The TEC cooling assembly 2 is located on the other side below the scanning handpiece mounting base 1. The TEC cooling assembly 2 has a cooling head 202 that can be detachably connected via the mounting and dismounting structure 4.

[0063] Specifically, this embodiment discloses a novel scanning handpiece that integrates a TEC cooling assembly 2 for cooling. It includes a scanning handpiece mounting base 1, on which a scanning system handpiece housing 101 is mounted. A scanning lens 103 and the TEC cooling assembly 2 are integrated below the scanning handpiece mounting base 1. In this embodiment, the TEC cooling assembly 2 uses a TEC cooling chip 206 as the cooling element, providing precise temperature control and meeting miniaturization design requirements.

[0064] Preferably, in this embodiment, a handpiece light inlet tube 102 is provided at the middle position of the scanning handpiece mounting base 1, and the handpiece light inlet tube 102 passes through the scanning system handpiece housing 101 and extends partially to the outside of the scanning system handpiece housing 101;

[0065] The handpiece light inlet tube 102 is fitted with the scanning lens 103 and a reflector 109 is attached to one end;

[0066] The scanning lens 103 is threaded to the bottom of the scanning handpiece mounting base 1, and the side of the scanning lens 103 has a vent screw 104.

[0067] Preferably, in this embodiment, a TEC cooling component connecting base 201 is provided at the lower end of the scanning handpiece mounting base 1;

[0068] The upper part of the scanning handpiece mounting base 1 is connected to the X-axis scanning galvanometer and motor 105 by screws, and the side of the scanning handpiece mounting base 1 is connected to the Y-axis scanning galvanometer and motor 106 by screws.

[0069] The TEC cooling assembly connection base 201 has an inlet pipe connector 107 and an outlet pipe connector 108.

[0070] In addition, the scanning system handpiece housing 101 of this embodiment is provided with a water outlet pipe 303, a water inlet pipe 302 and a handpiece wiring harness 301;

[0071] The water outlet pipe 303 passes through the scanning system handpiece housing 101 and is connected to the water outlet pipe connector 108, and the water inlet pipe 302 passes through the scanning system handpiece housing 101 and is connected to the water inlet pipe connector 107.

[0072] In this embodiment, the handpiece wiring harness 301 passes through the handpiece housing 101 of the scanning system and is connected to the X-axis scanning galvanometer and motor 105, the Y-axis scanning galvanometer and motor 106, and the TEC cooling assembly 2, respectively.

[0073] Preferably, the TEC cooling assembly 2 in this embodiment includes:

[0074] A hot-end water cooling head 204 is connected to the outlet pipe connector 108 and the inlet pipe connector 107 and is installed below the TEC cooling component connection base 201;

[0075] The cold-end cooling plate 205 is positioned relative to the hot-end water block 204; and

[0076] A TEC cooling plate 206 is located between the hot-end water-cooling head 204 and the cold-end cooling fin 205. The hot side of the TEC cooling plate 206 is fixed to the hot-end water-cooling head 204 with thermally conductive adhesive, and the cold side of the TEC cooling plate 206 is fixed to the cold-end cooling fin 205 with thermally conductive adhesive. The hot-end water-cooling head 204 is connected to the overall water circuit through an outlet pipe 303 and an inlet pipe 302 to form a water circulation cooling system. A temperature sensor 406 is installed at the end of the cold-end cooling fin 205.

[0077] To facilitate the installation and removal of the cooling head 202, the installation and removal structure 4 in this embodiment includes:

[0078] Cooling head mounting part 403;

[0079] The cooling head 202 is mounted to the end of the cooling head mounting component 403 via the cooling head mounting pin 401; and

[0080] A flexible washer 405 is installed between the fixing screw 404 and the cooling head mounting part 403 relative to one end of the cooling head 202.

[0081] In this embodiment, the cooling head mounting component 403 cooperates with the cooling head mounting fixing pin 401 and has a cooling head mounting inlet 40302 at one end, and a cooling head fixing groove 40303 communicates with the cooling head mounting inlet 40302.

[0082] A cooling head limiting groove 40301 is provided in the middle of the cooling head mounting part 403. A cooling head anti-horizontal rotation limiting pin 402 is provided in the cooling head limiting groove 40301. The cooling head anti-horizontal rotation limiting pin 402 is connected to the part of the cooling head 202 embedded in the cooling head mounting part 403.

[0083] The installation process of the scanning handpiece in this embodiment is as follows: First, the reflector 109 is glued and fixed to the light inlet tube 102 of the handpiece. Then, the light inlet tube 102, the X-axis scanning galvanometer and motor 105, and the Y-axis scanning galvanometer and motor 106 are respectively connected to the scanning handpiece mounting base 1 with screws. Then, the cooling head anti-horizontal rotation limit pin 402 is inserted into the cooling head limit groove 40301 of the cooling head mounting part 403 to prevent the installed cooling head 202 from rotating horizontally. The cooling head mounting part 403 is fixed below the cold end cooling plate 205 using the fixing screw 404 and the elastic washer 405. At the same time, an appropriate preload is ensured so that the cooling head mounting part 403 can have a certain displacement under the action of external force. This displacement is reflected in the vertical direction of the cooling head limit groove 40301. The temperature sensor 406 is fixed below the cold end cooling plate 205.

[0084] Then, the cooling head mounting pin 401 is inserted into the cooling head 202, aligned with the cooling head mounting inlet 40302, and then rotated into the cooling head fixing groove 40303. The principle of this installation and fixing process is that the external force applied during the rotation will first compress the elastic pad 405. When rotated into the cooling head fixing groove 40303, the elastic pad 405 will bounce up and tighten the cooling head 202.

[0085] The cold side of the TEC cooling chip 206 is fixed to the cold end cooling plate 205, and the hot side is fixed to the hot end water cooling head 204 with thermally conductive adhesive. After fixing it to the cooling system housing 203 with screws to form a whole, the TEC cooling assembly 2 is assembled onto the TEC cooling assembly connecting base 201.

[0086] In this embodiment, the cooling head 202 can be removed simply by rotating it a certain angle along the corresponding horizontal direction and then pointing it downwards. The principle of this process is the same as that of the installation process, and will not be described again.

[0087] In this embodiment, the temperature sensor 406 is generally used to monitor the temperature of the detachable cooling head 202. Based on the feedback temperature, the cooling efficiency of the TEC cooling chip 206 is controlled in real time, which can realize real-time temperature control of the cooling head 202. During the treatment, the temperature is precisely controlled and the cooling is carried out in real time as the treatment area moves. After the treatment, the cooling head 202 can be easily disassembled for cleaning and disinfection.

[0088] See Figure 8 As shown, as an extended implementation, the control system of the scanning handpiece of the TEC cooling component in this embodiment includes: a central processing unit, a light emission system, a temperature monitoring system, a TEC cooling system, and a water circulation system; wherein, the central processing unit controls the light emission of the light emission system according to the set light emission parameters; the TEC cooling system performs cooling operation based on the output current of the central processing unit; the water circulation system adjusts the water flow rate based on the output current of the central processing unit; and the temperature monitoring system includes an infrared temperature probe A407, a contact probe B408, and a temperature monitoring unit.

[0089] The specific working process is as follows: The central processing unit controls the light-emitting system to emit light according to the set light-emitting parameters. At the same time, the central processing unit controls the basic current signal of the TEC cooling system to achieve cooling. The infrared temperature probe A407 is used to test the skin temperature at different times, and the contact probe B408 is used to test the real-time temperature of the alloy probe. The infrared temperature probe A407 and the contact probe B408 send the obtained temperature signals to the temperature monitoring unit. The temperature monitoring unit sends the actual temperature signal to the central processing unit. The central processing unit adjusts the working current of the TEC cooling system again according to the feedback signal of the temperature monitoring system to regulate the cooling temperature of the alloy cooling head.

[0090] In the above technical solution, the scanning handpiece with a TEC cooling component provided by the present invention has the following beneficial effects:

[0091] The scanning handpiece with TEC cooling components of the present invention features miniaturization, real-time cooling of the skin in the cooling area during treatment, precise temperature control, and safe and comfortable use; it reduces costs while improving treatment safety and treatment volume.

[0092] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A scanning handpiece with a TEC cooling assembly, characterized in that, The scanning device includes: A scanning handpiece mounting base (1) is provided, and a scanning system handpiece housing (101) is mounted on the outside of the scanning handpiece mounting base (1). A scanning lens (103) is disposed on one side below the scanning handpiece mounting base (1); and A TEC cooling assembly (2) is disposed on the other side below the scanning handpiece mounting base (1), the TEC cooling assembly (2) having a cooling head (202) that can be detachably connected via a mounting structure (4). The lower end of the scanning handpiece mounting base (1) is provided with a TEC cooling component connecting base (201). The upper part of the scanning handpiece mounting base (1) is connected to an X-axis scanning galvanometer and a motor (105) by screws, and the side of the scanning handpiece mounting base (1) is connected to a Y-axis scanning galvanometer and a motor (106) by screws. The TEC cooling assembly connection base (201) has an inlet pipe connector (107) and an outlet pipe connector (108). The TEC cooling assembly (2) includes: A hot-end water cooling head (204) that communicates with the outlet pipe joint (108) and the inlet pipe joint (107) and is installed below the TEC cooling assembly connection base (201). The cold-end cooling plate (205) is disposed relative to the hot-end water-cooling head (204); and A TEC cooling chip (206) is located between the hot end water cooling head (204) and the cold end cooling plate (205). The hot side of the TEC cooling chip (206) is fixed to the hot end water cooling head (204) with thermally conductive adhesive, and the cold side of the TEC cooling chip (206) is fixed to the cold end cooling plate (205) with thermally conductive adhesive. The hot-end water cooling head (204) is connected to the whole machine water circuit through the water outlet pipe (303) and the water inlet pipe (302) to form a water circulation cooling system; The control system for the scanning handpiece of the TEC cooling assembly includes: A central processing unit (CPU) controls the light output of the light output system according to the set light output parameters. The TEC cooling system performs cooling operations based on the output current of the central processing unit. A water circulation system, wherein the water flow rate is adjusted according to the output current of the central processing unit; A temperature monitoring system is provided, comprising an infrared temperature probe A (407), a contact probe B (408), and a temperature monitoring unit. The infrared temperature probe A (407) is used to test the skin temperature at different times; the contact probe B (408) is used to test the real-time temperature of the alloy probe; and the temperature monitoring unit is used to receive the temperature signals detected by the infrared temperature probe A (407) and the contact probe B (408) and send the temperature signals to the central processing unit. The central processing unit readjusts the operating current of the TEC cooling system based on the feedback signal from the temperature monitoring system to regulate the cooling temperature of the alloy cooling head. A temperature sensor (406) is provided at the end of the cold end cooling plate (205).

2. The scanning handpiece with a TEC cooling assembly according to claim 1, characterized in that, A handpiece light inlet tube (102) is provided at the middle position of the scanning handpiece mounting base (1), and the handpiece light inlet tube (102) passes through the scanning system handpiece housing (101) and extends partially to the outside of the scanning system handpiece housing (101); The handpiece light inlet tube (102) and the scanning lens (103) are connected to a reflector (109) at one end. The scanning lens (103) is threaded to the bottom of the scanning handpiece mounting base (1), and the side of the scanning lens (103) has a vent screw (104).

3. The scanning handpiece with a TEC cooling assembly according to claim 1, characterized in that, The installation and removal structure (4) includes: Cooling head mounting component (403); The cooling head (202) is mounted to the end of the cooling head mounting member (403) by a cooling head mounting pin (401); and An elastic washer (405) is installed between the fixing screw (404) at one end of the cooling head (202) and the cooling head mounting part (403).

4. The scanning handpiece with a TEC cooling assembly according to claim 3, characterized in that, The cooling head mounting component (403) cooperates with the cooling head mounting fixing pin (401) and has a cooling head mounting inlet (40302) at one end, and a cooling head fixing groove (40303) communicates with the cooling head mounting inlet (40302). A cooling head limiting groove (40301) is provided in the middle of the cooling head mounting component (40301), and a cooling head anti-horizontal rotation limiting pin (402) is provided in the cooling head limiting groove (40301). The cooling head anti-horizontal rotation limiting pin (402) is connected to the part of the cooling head (202) embedded in the cooling head mounting component (403).

5. The scanning handpiece with a TEC cooling assembly according to claim 1, characterized in that, The scanning system handpiece housing (101) is provided with a water outlet pipe (303), a water inlet pipe (302), and a handpiece wiring harness (301). The water outlet pipe (303) passes through the scanning system handpiece housing (101) and is connected to the water outlet pipe connector (108). The water inlet pipe (302) passes through the scanning system handpiece housing (101) and is connected to the water inlet pipe connector (107).

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