Safe phototherapy instrument

Abstract

The invention discloses a safe phototherapy instrument which mainly comprises a phototherapy instrument shell, a light source module, a light absorption component and the like. The phototherapy instrument shell is provided with a light source module installation position, and the light source module is installed at the installation position of the phototherapy instrument shell. The light absorption part is in a tubular shape with two open ends, the first open end is connected to the phototherapy instrument shell and is close to the light source module, and a light absorption face is arranged on the inner wall face of the light absorption part. The light absorption component can slide back and forth along the phototherapy instrument, and the phototherapy instrument is configured to have two working states: in the first working state, light emitted by the light source module passes through the light absorption component, and a part of light or all of the light is absorbed by the light absorption component; and in the second working state, the light emitted by the light source module is not absorbed by the light absorption part. The safety phototherapy instrument provided by the invention has the following advantages: (1) the safety protection effect is excellent; (2) the working state is flexibly switched; (3) the structure is simple and the cost is low; and (4) the treatment efficiency is high.

Description

Technical Field

[0001] This invention relates to phototherapy devices, specifically to a safe phototherapy device with light leakage protection function, belonging to the field of medical device technology. Background Technology

[0002] Phototherapy is a physical therapy technique that uses light radiation to treat diseases or for cosmetic purposes, including visible light, ultraviolet light, and infrared light. Due to continuous technological advancements, phototherapy is increasingly being used in home environments. Improving the safety of phototherapy devices, especially ultraviolet light therapy devices, for home use is a key area requiring attention.

[0003] Strong ultraviolet radiation can be harmful to normal skin and eyes. When its intensity reaches a certain limit, it poses a high risk when used for home phototherapy. On the other hand, if the intensity is too low, it will affect the treatment efficiency and effectiveness. Therefore, balancing high intensity with reduced risk, ensuring users receive effective treatment while avoiding accidental injury, is a key factor to consider when designing and manufacturing home-use ultraviolet phototherapy devices.

[0004] To address the aforementioned problems, some solutions have emerged in the prior art, such as using sensors to monitor the distance between the phototherapy device and the skin, thereby turning the light source of the phototherapy device on or off. Utility model patent ZL 202320899425.5 discloses a phototherapy device with a safety device. The phototherapy device includes a main control module, and the safety device includes a sensing module installed around the light outlet of the phototherapy device. The sensing module can send signals to the main control module. When the light outlet of the phototherapy device is in complete contact with the patient's skin, the sensing module sends a first signal to the main control module, and then the phototherapy device emits phototherapy light. When the light outlet of the phototherapy device detaches from the patient's skin, the sensing module sends a second signal to the main control module, and then the phototherapy device immediately stops emitting phototherapy light. This patented solution requires an additional sensing module for the phototherapy device, resulting in a complex structure and high cost.

[0005] Therefore, there is a need to design a safe phototherapy device that is simple in structure, low in cost, and can flexibly switch working states, in order to effectively solve the safety hazards of existing phototherapy devices and improve the safety and convenience of use. Summary of the Invention

[0006] The technical problem that this invention aims to solve is that most existing phototherapy devices have safety protection structures that cannot easily switch between protection and treatment states, resulting in insufficient flexibility in use.

[0007] To address the aforementioned technical problems, this invention provides a safe phototherapy device, comprising: The phototherapy device housing has a mounting position for the light source module; The light source module is installed in the housing of the phototherapy device; The light-absorbing component is a tube with openings at both ends. The first open end is connected to the housing of the phototherapy device and is close to the light source module. The inner wall of the light-absorbing component is provided with a light-absorbing surface.

[0008] In some embodiments, the light-absorbing component is fitted onto the front of the phototherapy device housing and can slide back and forth along the housing.

[0009] In some embodiments, the light-absorbing component is provided with a limiting groove on its side, and the phototherapy device housing is provided with a limiting post on its side. The limiting groove and the limiting post are used in conjunction.

[0010] In some embodiments, the phototherapy device is configured to have two operating states: in the first operating state, some or all of the light emitted by the light source module is absorbed by the light-absorbing component; in the second operating state, the light emitted by the light source module is not absorbed by the light-absorbing component.

[0011] In some embodiments, an elastic member is provided between the light-absorbing component and the phototherapy device housing; when the phototherapy device is in the first working state, the elastic force of the elastic member causes the second open end of the light-absorbing component to move away from the light source module; when the phototherapy device is in the second working state, the second open end of the light-absorbing component moves closer to the light source module.

[0012] In some embodiments, the light-absorbing component has longitudinally and laterally intersecting partitions inside, which divide the interior of the light-absorbing component into multiple light channels; the surface of the partition is set as a light-absorbing surface; the light source module has a groove for accommodating the partition.

[0013] In some embodiments, the axial dimension of each optical channel is greater than its radial dimension.

[0014] In some embodiments, the light source module includes multiple identical light source components, each light source component corresponding to a light channel.

[0015] In some embodiments, a plug is provided at the tail of the partition plate for inserting into the housing of the phototherapy device.

[0016] In some embodiments, each light source component emits light with a divergence angle greater than 120 degrees.

[0017] The safe phototherapy device provided by the present invention has the following beneficial effects: (1) excellent safety protection effect; (2) flexible switching of working status; (3) simple structure and low cost; (4) high treatment efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall appearance structure of a safe phototherapy device provided in a preferred embodiment of the present invention.

[0019] Figure 2This is a schematic diagram of the disassembly structure of a safe phototherapy device provided in a preferred embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the light-absorbing component structure of a safe phototherapy device provided in a preferred embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the external structure of the housing of a safe phototherapy device provided in a preferred embodiment of the present invention.

[0022] Figure 5 This is a schematic diagram of the disassembled structure of the light source component of a safe phototherapy device provided in a preferred embodiment of the present invention.

[0023] Figure 6 This is a schematic diagram of the first working state of a safe phototherapy device provided in a preferred embodiment of the present invention.

[0024] Figure 7 This is a schematic diagram of the second working state of a safe phototherapy device provided in a preferred embodiment of the present invention.

[0025] The meanings of the markings in the above attached diagrams are as follows: 100 Phototherapy Device Main Unit 110 Phototherapy device casing 111 Spring mounting hole 112 Light source assembly mounting position 113 Limiting Post 120 Light Source Assembly 121 Heat dissipation module 122 Light Source 123 Protective Glass 131 Spring body 132 Spring Head 200 light-absorbing components 210 Light-absorbing component housing 211 Limiting Slide 212 inner wall 221 Horizontal partition 222 Longitudinal partition 230 insert rod Detailed Implementation The terms "first," "second," and similar words used in this specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar words do not indicate a quantity limitation, but rather indicate the presence of at least one. In the description of this patent, unless otherwise stated, "a plurality of" means two or more.

[0026] In the description of this patent, words such as "comprising" or "having" mean that the elements or objects preceding "comprising" or "having" cover the elements or objects listed after "comprising" or "having" and their equivalents, and do not exclude other elements or objects.

[0027] In the description of this patent, when an element is referred to as being "fixed to / mounted on (or similarly)" another element, it can be directly on the other element or there may be intervening elements. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be intervening elements. Conversely, when an element is referred to as being "directly on" another element, there are no intervening elements.

[0028] In the description of this patent, the terms "front", "rear", "upper", "lower", "left", "right", "horizontal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "clockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent.

[0029] Figure 1 The diagram shown is a schematic representation of the external structure of the safe phototherapy device provided in this embodiment. The entire phototherapy device mainly consists of a phototherapy device body 100 and a light-absorbing component 200. The phototherapy device body 100 is further composed of a phototherapy device housing 110, multiple light source components 120, and elastic components installed inside the phototherapy device housing 110, such as... Figure 2 As shown. The individual structure of the light-absorbing component 200 is as follows. Figure 3 As shown.

[0030] The phototherapy device housing 110 is made of plastic or metal and houses components such as the light source drive control board and power supply battery (not shown in the figure). These components ensure the normal operation of the phototherapy device, but are not the focus of this patent and will not be described in detail here. A spring mounting hole 111 and a light source assembly mounting position 112 are provided on the front end face of the phototherapy device housing 110, and a limiting post 113 is provided on the side. Figure 4 As shown.

[0031] The light source assembly 120 is fixed to the light source assembly mounting position 112 at the front of the phototherapy device housing 110. Figure 2 In the phototherapy device shown, the light source module uses four light source components 120, which are spaced apart to form a cross-shaped groove. The divergence angle of the light emitted by each light source component 120 is greater than 120 degrees.

[0032] A single light source assembly 120 consists of a heat dissipation module 121, a light source 122, and a protective glass 123, such as Figure 5 As shown. The heat dissipation module 121 is made of a metal with high thermal conductivity; in this embodiment, it is made of aluminum. Its function is to provide a mounting base for the light source 122 and to conduct and dissipate heat from the light source 122. Each light source assembly contains four light sources 122, preferably LED light sources, used to emit therapeutic light, such as ultraviolet light. These therapeutic light rays are output onto the surface of the protective glass 123, with uniform irradiance distribution. The protective glass 123 is fixedly mounted on the front end of the heat dissipation module 121, protecting the light source 122 from external dust and moisture corrosion, while not affecting the penetration of the therapeutic light rays.

[0033] The light-absorbing component 200 is the focus of this invention. The front of the phototherapy device body 100 is columnar, and the light-absorbing component 200 is a tubular structure open at both ends, fitted onto the outer front of the phototherapy device, such as... Figure 1 As shown. The light-absorbing component 200 is slidably connected to the phototherapy device body 100. (As shown...) Figure 3 As shown, the outer part of the light-absorbing component 200 is a light-absorbing component housing 210, which is made of rigid plastic or metal. A light-absorbing surface is provided on the inner wall surface 212 of the light-absorbing component housing 210 for absorbing therapeutic light. Preferably, the light-absorbing surface is a matte black finish. A long, narrow limiting groove 211 is provided on the side of the light-absorbing component housing 210, with both ends of the limiting groove 211 being circular. It cooperates with the limiting post 113 on the side of the phototherapy device housing 110.

[0034] Furthermore, a partition plate is provided inside the light-absorbing component 200, including a transverse partition 221 and a longitudinal partition 222, which are perpendicularly intersected to form a cross shape, thereby dividing the internal space of the light-absorbing component 200 into four independent light channels. The axial dimension of each light channel must be greater than its radial dimension to ensure that the light path in the light channel is long enough to absorb as much light as possible. All surfaces of the transverse partition 221 and the longitudinal partition 222 are treated with a black matte coating to form light-absorbing surfaces, effectively absorbing the light emitted by the light source assembly 120 and preventing light reflection and leakage. In addition, each light channel corresponds to a position of a light source assembly 120, such as... Figure 2 As shown, this allows the light emitted by each light source component 120 to enter the corresponding light channel.

[0035] In other embodiments, a grid pattern can be formed by two transverse partitions and two longitudinal partitions, thus dividing the internal space of the light-absorbing component into nine independent light channels. Each light channel corresponds to a light source assembly, and nine light source assemblies are correspondingly arranged in the phototherapy device body, spaced apart to form a grid-shaped groove to accommodate the partitions. The number of light channels and light source assemblies can even be more, such as 16 or 25.

[0036] An elastic component is provided between the phototherapy device body 100 and the light-absorbing component 200. The elastic component consists of a spring body 131 and a spring head 132, wherein the spring body 131 is a helical spring. Figure 2 As shown. The elastic component is installed inside the phototherapy device body 100, specifically within the spring mounting hole 111, allowing it to extend and retract along this hole. A rod 230 is provided at the intersection of the transverse partition 221 and the longitudinal partition 222 of the light-absorbing component 200, as shown. Figure 3 As shown, the insert 230 is inserted into the spring mounting hole 111 and contacts the spring head 132. Figure 2 The spring body 131 and spring head 132 shown are just one form of elastic component. Elastic components can also be in other forms, as long as they can keep the light-absorbing component 200 away from the phototherapy device body 100.

[0037] When the light-absorbing component 200 is installed in place on the phototherapy device body 100, the spring head 132 abuts against the end of the insertion rod 230, and the spring force pushes the insertion rod 230, causing the light-absorbing component 200 to tend to move away from the phototherapy device body 100. However, at the same time, the limiting groove 211 of the light-absorbing component 200 is restricted by the limiting post 113, thus limiting the sliding range of the light-absorbing component 200 along the axis of the phototherapy device body 100, preventing the light-absorbing component 200 from detaching from the phototherapy device housing 110. The length of the limiting groove 211 is 10-20 mm, meaning the light-absorbing component 200 can slide back and forth about 10-20 mm along the axis of the phototherapy device body 100.

[0038] When the limiting post 113 is at the rear end of the limiting slide 211, the light-absorbing component 200 is at its forwardmost position. At this time, the phototherapy device is in a non-treatment state, and the light-absorbing component 200 protrudes from the protective glass 123, providing protection for the light source assembly 120. When the limiting post 113 is at the front end of the limiting slide 211, the phototherapy device is usually in a treatment state. At this time, the leading edge of the light-absorbing component 200 is aligned with the light-emitting surface of the light source assembly 120, the protective glass 123 is against the skin, and the light-absorbing component 200 presses against the skin, preventing side leakage of the treatment light.

[0039] The phototherapy device achieves the switching between two working states through the sliding of the light-absorbing component 200 at the front of the device and the elastic action of the elastic component. The specific working process is as follows.

[0040] First working state (non-treatment state): When the light-absorbing component 200 at the front end of the phototherapy device is not compressed, the elastic force of the spring body 131 pushes the spring head 132 to abut against the insertion rod 230 of the light-absorbing component 200, causing the light-absorbing component 200 to slide forward along the phototherapy device housing 110 until the rear end of the limiting groove 211 abuts against the limiting post 113. At this time, the second open end of the light-absorbing component 200 is away from the light source assembly 120, and the protective glass 123 is flush with the rear end surfaces of the transverse partition 221 and the longitudinal partition 222, as shown. Figure 6 As shown. It should be noted that, in order to demonstrate the positional relationship between the protective glass 123 and the partition, a corner has been cut off in the figure; the actual phototherapy device does not have this cut-off corner. If the phototherapy device is accidentally operated, the light emitted by the light source 122 will encounter the light-absorbing surfaces of each light channel when it enters the light-absorbing component 200.

[0041] Because the divergence angle of the light emitted by each light source component 120 is greater than 120 degrees, most of the light will directly illuminate or be reflected to the inner wall surface 212 of the light-absorbing component 200 and the light-absorbing surface of the partition plate, where it will be absorbed. The larger the ratio of the axial dimension to the radial dimension of the light channel, the more light the light channel absorbs, with only a small amount of direct light leaking out from the exit of the light channel (i.e., the second opening end of the light-absorbing component). This effectively reduces the safety risk of ultraviolet leakage caused by accidental triggering of the phototherapy device.

[0042] Second working state (treatment state): When using the phototherapy device for treatment, first place the second open end of the light-absorbing component 200 against the treatment area (such as the skin surface), then press the phototherapy device body 100 against the light-absorbing component 200 until the protective glass 123 of the light source assembly 120 is flush with the second open end of the light-absorbing component 200. At this time, the protective glass 123 is also in contact with the skin surface, the limiting post 113 is in contact with the foremost end of the limiting groove 211, and the transverse partition 221 and the longitudinal partition 222 are precisely embedded in the cross-shaped groove of the light source assembly 120, such as... Figure 7 As shown, the light emitted by the light source 122 reaches the skin directly after passing through the protective glass 123. Because it does not pass through the light channel, it will not be absorbed by the light-absorbing surface of the light-absorbing component 200, thus ensuring the light intensity and treatment effect.

[0043] After treatment, the phototherapy device is released from the skin. The elasticity of the spring body 131 pushes the light-absorbing component 200 away from the phototherapy device body 100, and the phototherapy device automatically returns to its original position. Figure 1 or Figure 6 The first working state is shown.

[0044] Compared with the prior art, the present invention has the following beneficial effects: (1) Excellent safety protection effect: The present invention provides a tubular light-absorbing component at the front end of the phototherapy device housing. The inner wall surface of the light-absorbing component and the surface of the internal partition plate are both provided with a matte black light-absorbing surface, which can effectively absorb the diffused and leaked light emitted by the light source, avoid light leakage from causing harm to the human body, and significantly improve the safety of the phototherapy device. At the same time, the longitudinal and transverse partition plates inside the light-absorbing component form an independent light-emitting channel, which can individually constrain the light emitted by each light source component, further reducing light leakage.

[0045] (2) Flexible switching of working states: The light-absorbing component can slide back and forth along the phototherapy device, and the two working states can be automatically switched through the elastic component, without the need for additional complex control modules. When not in use, the elasticity of the elastic component keeps the light-absorbing component in the first working state, and any accidentally emitted light is absorbed by the light-absorbing component to prevent light leakage. When phototherapy is used, the second outlet end of the light-absorbing component is placed against the treatment area, and the phototherapy device is pressed to slide it to the position of the second working state. The light directly irradiates the treatment area without being absorbed by the light channel. The switching between the two working states is very convenient and flexible.

[0046] (3) Simple structure and low cost: The present invention achieves safety protection function through the optimized design of mechanical structure. It does not require complex electronic components such as sensor array and sensor control system. The structure is simple and compact, easy to process and manufacture, and can effectively reduce production costs and enhance the market competitiveness of the product.

[0047] (4) High treatment efficiency: The divergence angle of the treatment light emitted by the light source component is greater than 120 degrees, which can expand the treatment coverage area. The light utilization rate is high, ensuring the treatment effect.

[0048] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A safe phototherapy apparatus, characterized by, The application relates to a light therapy device, which comprises the following parts: a light therapy device shell with a light source module installation position; a light source module installed in the light therapy device shell; a light absorption component in the shape of a two-end-open tube, wherein a first open end of the light absorption component is connected to the light therapy device shell and is close to the light source module, and the inner wall surface of the light absorption component is provided with a light absorption surface.

2. The safe phototherapy apparatus according to claim 1, wherein The light absorption component is sleeved on the front part of the light therapy device shell and can slide along the front and back of the light therapy device shell.

3. The safe light therapy apparatus according to claim 2, wherein The side surface of the light absorption component is provided with a limiting sliding groove, and the side surface of the light therapy device shell is provided with a limiting column, and the limiting sliding groove and the limiting column are used in cooperation.

4. The safe light therapy apparatus according to claim 2, wherein The light therapy device is configured to have two working states: in the first working state, part or all of the light emitted by the light source module is absorbed by the light absorption component; and in the second working state, the light emitted by the light source module is not absorbed by the light absorption component.

5. The safe light therapy apparatus according to claim 4, wherein An elastic component is arranged between the light absorption component and the light therapy device shell; when the light therapy device is in the first working state, the elastic force of the elastic component makes the second open end of the light absorption component away from the light source module; and when the light therapy device is in the second working state, the second open end of the light absorption component is close to the light source module.

6. The safe light therapy apparatus according to claim 1, wherein The inside of the light absorption component is provided with longitudinal and transverse staggered partition plates, the partition plates divide the inside of the light absorption component into multiple light channels; the surface of the partition plates is provided with a light absorption surface; and the light source module is provided with a groove for accommodating the partition plates.

7. The safe light therapy device according to claim 6, characterized in that The axial dimension of each light channel is greater than the radial dimension thereof.

8. The safe light therapy apparatus according to claim 6, wherein The light source module comprises multiple same light source assemblies, and each light source assembly corresponds to one light channel.

9. The safe light therapy apparatus according to claim 6, wherein A plug rod is arranged at the tail of the partition plate and is used for plugging into the light therapy device shell.

10. The safe light therapy apparatus according to claim 8, wherein The divergence angle of the light emitted by each light source assembly is greater than 120 degrees.

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