TWI870715B - Phototherapy device - Google Patents

Abstract

A phototherapy device, includes a light-emitting module and a skin-friendly layer. The light-emitting module is configured to emit a first light beam. The skin-friendly layer is detachably disposed on the light-emitting module and is configured to project a treatment light beam out of the phototherapy device. The skin-friendly layer includes a light a conversion area, the light conversion area is configured to convert the first light beam into a converted light beam. The treatment light beam includes at least one of the first light beam and the converted light beam.

Description

Light therapy device

The present invention relates to a phototherapy device, and in particular to a skin-friendly phototherapy device.

Photodynamic therapy is a treatment method that applies photoelectric technology to biomedicine. Photodynamic therapy has become a widely used medical technology in recent years because of its advantages such as small wounds, little damage, and easy application. It is mainly used in medical cosmetology and cancer treatment, and the treatment course can be customized according to the patient's condition and personal needs.

However, existing photodynamic therapy equipment is bulky and expensive, and the treatment methods and procedures are complicated and time-consuming, making it difficult to promote and popularize photodynamic therapy.

The "prior art" section is only used to help understand the content of the present invention. Therefore, the content disclosed in the "prior art" section may contain some content that does not constitute the common knowledge of the person skilled in the art. The content disclosed in the "prior art" section does not mean that the content or the problem to be solved by one or more embodiments of the present invention has been known or recognized by the person skilled in the art before the application of the present invention.

The present invention provides a phototherapy device, and a user can replace a skin-friendly layer on the phototherapy device according to needs.

Other purposes and advantages of the present invention can be further understood from the technical features disclosed in the present invention.

In order to achieve one or part or all of the above purposes or other purposes, the present invention provides a phototherapy device, including a light-emitting module and a skin-friendly layer. The light-emitting module has a light-emitting surface. The light-emitting module is used to emit a first light beam. The skin-friendly layer can be detachably configured on the light-emitting module and is used to project a therapeutic light beam out of the phototherapy device. The skin-friendly layer has a first surface and a second surface opposite to the first surface, and the first surface is configured on the light-emitting surface of the light-emitting module. The skin-friendly layer includes a light conversion area, and the light conversion area is used to convert the first light beam into a conversion light beam. The therapeutic light beam includes at least one of the first light beam and the conversion light beam.

In one embodiment of the present invention, the light module includes a light-emitting backplane and a light-smoothing element. The light-emitting backplane is used to emit the first light beam. The light-smoothing element is arranged on the transmission path of the first light beam emitted from the light-emitting backplane, and is located between the light-emitting backplane and the skin-friendly layer. The light-smoothing element is used to make the first light beam evenly distributed.

In one embodiment of the present invention, the light-emitting backplane is flexible.

In one embodiment of the present invention, the light-emitting backplane includes a plurality of light-emitting elements, and the plurality of light-emitting elements include one or a combination of OLED, LED, QLED, miniLED, and microLED.

In one embodiment of the present invention, the light-homogenizing element is flexible.

In one embodiment of the present invention, the light-homogenizing element has a microstructure.

In one embodiment of the present invention, the light conversion region includes a wavelength conversion material.

In one embodiment of the present invention, the wavelength conversion material includes one or more combinations of quantum dots or fluorescent powders.

In one embodiment of the present invention, the light conversion region includes a plurality of light conversion patterns having different luminous wavelengths.

In one embodiment of the present invention, the skin-friendly layer is flexible.

In an embodiment of the present invention, the skin-friendly layer further includes a light-transmitting area, and the light-transmitting area is used to allow the first light beam to penetrate the skin-friendly layer.

In an embodiment of the present invention, the skin-friendly layer further includes a light-shielding area, and the light-shielding area includes a light-absorbing material or a light-shielding material for absorbing or shielding the first light beam incident on the skin-friendly layer.

In an embodiment of the present invention, the phototherapy device further comprises an adhesive layer. The adhesive layer is located on the light emitting surface of the light emitting module and is used to be detachably connected to the first surface of the skin-friendly layer.

In an embodiment of the present invention, the phototherapy device further comprises a control module. The control module is electrically connected to the light-emitting module to control the light intensity of the light-emitting module.

In one embodiment of the present invention, the phototherapy device further comprises a communication module. The communication module is electrically connected to the control module.

In one embodiment of the present invention, the phototherapy device further comprises a light sensor which is electrically connected to the control module and is used to sense the treatment light beam reflected back from the user.

Based on the above, the phototherapy device described in the present invention combines the light-emitting module and the skin-friendly layer, has the characteristics of being light and long-lasting, and can enable patients to continue to receive photodynamic therapy in various occasions. With the detachable skin-friendly layer, the skin-friendly layer can be replaced according to the patient's condition to change the light treatment area and treatment method. Therefore, the phototherapy device has the effect of making photodynamic therapy light, customized, and simple.

In order to make the above features and advantages of the present invention more clearly understood, embodiments are specifically cited below and described in detail with reference to the accompanying drawings.

The above-mentioned other technical contents, features and effects of the present invention will be clearly presented in the detailed description of the preferred embodiment with reference to the following drawings. The directional terms mentioned in the following embodiments, such as up, down, left, right, front or back, etc., are only referenced to the directions of the attached drawings. Therefore, the directional terms used are used to illustrate and are not used to limit the present invention.

FIG1 is a schematic diagram of a phototherapy device according to an embodiment of the present invention. FIG2 is a schematic diagram of a phototherapy device according to an embodiment of the present invention. Please refer to FIG1 and FIG2 simultaneously. The phototherapy device 1 includes a light-emitting module 100 and a skin-friendly layer 200. The light-emitting module 100 has a light-emitting surface 102. The light-emitting module 100 is used to emit a first light beam L1. The skin-friendly layer 200 can be detachably arranged on the light-emitting module 100, and is used to project a therapeutic light beam L3 out of the phototherapy device 1. The skin-friendly layer 200 includes a light conversion region 210. The light conversion region 210 is used to convert at least a portion of the first light beam L1 into a converted light beam L2. The therapeutic light beam L3 is projected out of the phototherapy device 1 through the skin-friendly layer 200. The treatment beam L3 includes at least one of the first beam L1 and the conversion beam L2. In this embodiment, since the skin-friendly layer 200 can be detachably disposed on the light-emitting module 100, the user of the phototherapy device 1 can select a corresponding skin-friendly layer 200 to be disposed on the light-emitting module 100 according to different treatment courses or requirements.

As shown in FIG2 , the light module 100 includes a light back plate 110 and a light homogenizing element 120. In this embodiment, the light back plate 110 is flexible so that the light module 100 can better fit the user when in use. In some embodiments, the light back plate may include a flexible printed circuit board (FPCB), or other elements with similar functions.

As shown in FIG. 2 , the light-emitting backplane 110 further includes a plurality of light-emitting elements 112, and the light-emitting elements 112 are used to emit a first light beam L1. The plurality of light-emitting elements 112 are arranged in an array, for example. In one embodiment, the light-emitting element 112 is a blue light LED, and the wavelength range of the emitted first light beam L1 is 430-460 nm. In another embodiment, the light-emitting element 112 may include one or more combinations of OLED, LED, QLED, miniLED, microLED, or the like. In another embodiment, the first light beam L1 may be a light beam of any color, ultraviolet light, infrared light, or the like.

As shown in FIG2 , the light-homogenizing element 120 is disposed on the transmission path of the first light beam L1 emitted from the light-emitting back plate 110, and is located between the light-emitting back plate 110 and the skin-friendly layer 200. The light-homogenizing element 120 is used to evenly distribute the first light beam L1, so that the first light beam L1 can evenly enter the skin-friendly layer 200, thereby improving the utilization rate of the first light beam L1 and improving the light efficiency of the phototherapy device 1.

In one embodiment, the light homogenizing element 120 has a microstructure (not shown) to diffuse the first light beam L1 in the light homogenizing element 120. In some embodiments, the microstructure of the light homogenizing element 120 may be, for example, a straight line or a conical structure, etc., which may be applied to the microstructure of the light homogenizing element 120. In some embodiments, the transmittance of the light homogenizing element 120 to the first light beam L1 may be greater than or equal to 70%, for example.

In this embodiment, the light-distributing element 120 is flexible so that the light-emitting module 100 can better fit the user when in use. In some embodiments, the material of the light-distributing element 120 can be a polyester compound, or a material with similar properties.

As shown in FIG2 , the skin-friendly layer 200 has a first surface 202 and a second surface 204 opposite to the first surface 202. The first surface 202 is disposed on the light-emitting surface 102 of the light-emitting module 100. The second surface 204 is in contact with the user's skin S (shown in FIG1 ). The first light beam L1 emitted by the light-emitting module 100 enters the first surface 202 of the skin-friendly layer 200 through the light-emitting surface 102.

The light conversion region 210 of the skin-friendly layer 200 is used to convert the first light beam L1 incident from the first surface 202 into a conversion light beam L2. The light conversion region 210 includes a wavelength conversion material, wherein the wavelength of the conversion light beam L2 is different from the wavelength of the first light beam L1. The wavelength conversion material may include a combination of one or more of quantum dots or fluorescent powders. In one embodiment, the wavelength conversion material may convert the blue first light beam L1 into a conversion light beam L2 of green light, red light, or infrared light, or other color light, wherein the wavelength range of green light may be 500-540nm, the wavelength range of red light may be 610-650nm, and the wavelength range of infrared light may be 900-1250nm.

In more detail, the light-emitting surface of the light conversion region 210 is at least a portion of the second surface 204, so that the converted light beam L2 can directly emit the skin-friendly layer 200 to increase the use efficiency of the converted light beam L2.

The skin-friendly layer 200 further includes a light shielding area 230, and the light shielding area 230 includes a light-absorbing material or a light-shielding material for absorbing or shielding the first light beam L1 incident on the skin-friendly layer 200. According to some embodiments, the light-absorbing material may include black photoresist or other materials with similar properties. According to some embodiments, the light-shielding material may be, for example, a light-shielding cloth. By means of the light shielding area 230, the phototherapy device 1 can limit the irradiation range of the treatment light beam L3 to avoid irradiating normal parts that do not need to be treated.

The skin-friendly layer 200 further includes a light-transmitting area 220. The material of the light-transmitting area 220 may be a light-transmitting material, or the light-transmitting area 220 may be a through hole. In one embodiment, the light-transmitting area 220 may be an area in the skin-friendly layer 200 that does not include the light conversion area 210 and the light-shielding area 230. The light-transmitting area 220 is used to allow the first light beam L1 to penetrate the skin-friendly layer 200, so that the first light beam L1 is incident on the skin S.

Through the light conversion area 210 , the light-transmitting area 220 and the light-shielding area 230 , at least one of the first light beam L1 and the converted light beam L2 forms a treatment light beam L3 , and the treatment light beam L3 is projected out of the phototherapy device 1 through the second surface 204 .

The skin-friendly layer 200 is flexible so that the skin-friendly layer 200 can better fit the user when in use. In some embodiments, the material of the skin-friendly layer 200 can be a non-woven material of plant fiber, an artificial leather material, etc.

3A to 3C are schematic diagrams of a skin-friendly layer according to an embodiment of the present invention. In the skin-friendly layer 200, the shapes and positions of the light conversion region 210, the light-transmitting region 220 and the light-shielding region 230 can be changed according to actual needs to form a variety of light conversion patterns with different luminous wavelengths and different luminous positions.

In FIG3A , in the light conversion pattern 214A of the skin-friendly layer 200 , the light conversion region 210 is circular, and the light-transmitting region 220 is annular, wherein the light conversion region 210 is located in the light-transmitting region 220 . In FIG3B , in the light conversion pattern 214B of the skin-friendly layer 200 , both the light conversion region 210 and the light-transmitting region 220 are irregular shapes to correspond to the part to be irradiated. In FIG3C , in the light conversion pattern 214C of the skin-friendly layer 200 , the light-transmitting region 220 has two light conversion regions 210A and 210B. The light conversion region 210A and the light conversion region 210B may have the same or different wavelength conversion materials to generate the conversion light beam L2 of the same wavelength or different wavelengths. Light beams of different wavelengths have different therapeutic effects. Therefore, the light conversion pattern may have only one, two, or more than three light emitting wavelengths of light materials. In the light conversion patterns 214A, 214B, and 214C of FIGS. 3A to 3C , the number and shape of the light conversion regions 210, 210A, and 210B, the number and shape of the light-transmitting regions 220, and the number and shape of the light-shielding regions 230 may be adjusted according to actual needs to form a variety of different light conversion patterns.

Therefore, by replacing multiple skin-friendly layers 200 with different light conversion patterns, the user can select a skin-friendly layer 200 for phototherapy according to different treatment courses or needs. This can change the ratio and irradiation position between the first light beam L1 and the conversion light beam L2 of the treatment light beam L3, or change the wavelength of the conversion light beam L2, so as to improve the treatment efficiency.

Please go back to Figures 1 and 2. The phototherapy device 1 further includes an adhesive layer 130. The adhesive layer 130 is located on the light emitting surface 102 of the light emitting module 100, and is used to be detachably connected to the first surface 202 of the skin-friendly layer 200. According to some embodiments, the material of the adhesive layer 130 can be a breathable tape, or something similar. In one embodiment, the phototherapy device 1 is used by first attaching the skin-friendly layer 200 to the user's skin S, and then attaching the light emitting module 100 to the skin-friendly layer 200. With the adhesive layer 130, the user can easily replace the skin-friendly layer 200 according to the treatment requirements to improve the treatment effect.

In one embodiment, the light-emitting module 100 further includes a power supply module (not shown). The power supply module includes, for example, a battery. The battery is electrically connected to the light-emitting element 112 to provide the light-emitting element 112 with the power required. The battery can be located at the back of the light-emitting module 100 away from the light-emitting surface 102 or at other appropriate locations. The battery can be charged by an external power source, or can be a solar cell charged by irradiating sunlight.

Please refer to Figures 4-5. Figure 4 is a schematic diagram of a phototherapy device according to another embodiment of the present invention. Figure 5 is a schematic diagram of a phototherapy device according to another embodiment of the present invention. The phototherapy device 1 further includes a control module 300, a communication module 400, and a photosensor 500A and/or a photosensor 500B. In one embodiment, according to actual use requirements, the phototherapy device 1 may have at least one of the photosensor 500A and the photosensor 500B. The photosensors 500A and 500B are electrically connected to the control module 300 to sense the treatment light beam L3 reflected back by the user's skin S. As shown in Figure 4, the photosensor 500A can be configured between the light-emitting elements 112. The photo sensor 500B can be arranged beside the light emitting module 100. More specifically, the photo sensor 500B can be arranged on a side of the light emitting module 100 relative to the light emitting surface 102. The photo sensor 500A and/or the photo sensor 500B detects the treatment light beam L3 reflected by the user's skin S to obtain an optical signal, and analyzes the condition of the user's skin S, such as the wound condition, by the optical signal as a reference for subsequent treatment. For example, whether the size and position of the light conversion area 210 need to be changed, whether the wavelength conversion material of the light conversion area 210 needs to be changed to generate a conversion light beam L2 of a different wavelength, so as to determine whether to replace the skin-friendly layer 200 with other light conversion patterns.

The control module 300 is electrically connected to the light-emitting module 100 to control the light-emitting intensity of the light-emitting module 100. More specifically, the control module 300 is electrically connected to the light-emitting element 112 of the light-emitting backplane 110 of the light-emitting module 100. The control module 300 may be, for example, a processor. The control module 300 is used to control the light-emitting state of the light-emitting element 112 to be emitting or not emitting light, the brightness of the light-emitting element 112 when emitting light, etc. By controlling the light-emitting intensity of the light-emitting module 100, the light-emitting of the light conversion pattern can be controlled, and the intensity of the treatment light beam L3 in the skin-friendly layer 200 can be changed accordingly to achieve different treatment effects.

As shown in FIG5 , the communication module 400 is electrically connected to the control module 300. The communication module 400 can be used for information transmission between the phototherapy device 1 and an external device (such as a host of a medical unit, a personal computer or a mobile phone, etc.). The transmitted information includes, for example, receiving a control signal from an external device, transmitting the optical signal received by the photosensors 500A and 500B to the external device, transmitting the usage time, remaining power or other usage information of the phototherapy device 1 to the external device, so that the user can understand the operating status of the phototherapy device 1. In addition, the user can also transmit a control signal to the control module 300 through the communication module 400, and the control module 300 adjusts the light intensity of the light module 100 according to the control signal. The above-mentioned control signal may, for example, include adjusting the light intensity or light duration of the light module 100.

According to some embodiments, the communication module 400 may be a wired communication module or a wireless communication module, wherein the wireless communication module transmits data via Wi-Fi, Bluetooth or other methods, but the present disclosure is not limited thereto.

In summary, the phototherapy device of the present invention, which combines the light-emitting module with the skin-friendly layer, is lightweight and can be worn for a long time, allowing patients to continue to receive photodynamic therapy in various occasions. The skin-friendly layer can be replaced according to the patient's condition to change the light treatment area and treatment method. Therefore, the phototherapy device has the effect of making photodynamic therapy lightweight, customized, and simple.

However, what is described above is only the preferred embodiment of the present invention, and it cannot be used to limit the scope of the implementation of the present invention. That is, all simple equivalent changes and modifications made according to the scope of the patent application and the content of the invention description are still within the scope of the present invention. In addition, any embodiment or patent application of the present invention does not need to achieve all the purposes, advantages or features disclosed by the present invention. In addition, the abstract and title are only used to assist in searching for patent documents, and are not used to limit the scope of rights of the present invention. In addition, the terms "first", "second", etc. mentioned in this specification or patent application are only used to name the name of the element or distinguish different embodiments or scopes, and are not used to limit the upper or lower limit of the number of elements.

1: Phototherapy device 100: Light-emitting module 102: Light-emitting surface 110: Light-emitting backplane 112: Light-emitting element 120: Light-distributing element 130: Adhesive layer 200, 200A, 200B, 200C: Skin-friendly layer 202: First surface 204: Second surface 210, 210A, 210B: Light conversion area 214 A, 214 B, 214C: Light conversion pattern 220: Light-transmitting area 230: Light-shielding area 300: Control module 400: Communication module 500A, 500B: Light sensor L1: First light beam L2: Conversion light beam L3: Treatment light beam S: Skin.

FIG. 1 is a schematic diagram of a phototherapy device according to an embodiment of the present invention. FIG. 2 is a schematic diagram of a phototherapy device according to an embodiment of the present invention. FIG. 3A to FIG. 3C are schematic diagrams of a skin-friendly layer according to an embodiment of the present invention. FIG. 4 is a schematic diagram of a phototherapy device according to another embodiment of the present invention. FIG. 5 is a schematic diagram of a phototherapy device according to another embodiment of the present invention.

1: Phototherapy device

100: Light-emitting module

102: Bright surface

110: Luminous back panel

112: Light-emitting element

120: Light homogenization element

130: Adhesive layer

200: Skin-friendly layer

202: First surface

204: Second surface

210: Light conversion area

220: light-transmitting area

230: Shade area

L1: First beam

L2: Transformation beam

L3: Therapeutic beam

Claims (13)

A phototherapy device comprises: a light emitting module having a light emitting surface, the light emitting module is used to emit a first light beam; and a skin-friendly layer, which can be detachably arranged on the light emitting module and is used to project a treatment light beam out of the phototherapy device, wherein the skin-friendly layer has a first surface and a second surface opposite to the first surface, the first surface is arranged on the light emitting surface of the light emitting module, the skin-friendly layer comprises a light conversion region, the light conversion region is used to convert the first light beam into a conversion light beam, the treatment light beam comprises at least one of the first light beam and the conversion light beam, wherein the skin-friendly layer further comprises a light-transmitting The light-transmitting area is used to allow the first light beam to penetrate the skin-friendly layer, and the light-shielding area includes a light-absorbing material or a light-shielding material to absorb or shield the first light beam incident on the skin-friendly layer, wherein the light conversion area, the light-transmitting area and the light-shielding area are coplanar and arranged in the same layer on the second surface, wherein the light-emitting module includes: a light-emitting backplane, used to emit the first light beam; and a light-uniform element, which is arranged on the transmission path of the first light beam emitted from the light-emitting backplane, and is located between the light-emitting backplane and the skin-friendly layer, wherein the light-uniform element is used to evenly distribute the first light beam, and wherein the light-uniform element has a microstructure. In the phototherapy device as described in claim 1, the light-emitting backplane is flexible. As described in claim 1, the light-emitting backplane includes a plurality of light-emitting elements, and the plurality of light-emitting elements include one or a combination of OLED, LED, QLED, miniLED, and microLED. In the phototherapy device as described in claim 1, the light homogenizing element is flexible. In the phototherapy device as described in claim 1, the light-homogenizing element has a microstructure. In the phototherapy device as described in claim 1, the light conversion region includes a wavelength conversion material. In the phototherapy device as described in claim 6, the wavelength conversion material includes a combination of one or more of quantum dots or fluorescent powders. In the phototherapy device as described in claim 1, the light conversion area includes a plurality of light conversion patterns with different light emission wavelengths. In the phototherapy device as described in claim 1, the skin-friendly layer is flexible. The phototherapy device as described in claim 1 further comprises: an adhesive layer located on the light-emitting surface of the light-emitting module, for detachably connecting to the first surface of the skin-friendly layer. The phototherapy device as described in claim 1 further includes: a control module electrically connected to the light-emitting module, the control module is used to control the light intensity of the light-emitting module. The phototherapy device as described in claim 11 further includes: A communication module electrically connected to the control module. The phototherapy device as described in claim 11 further includes: a light sensor electrically connected to the control module for sensing the therapeutic light beam reflected back from the user.

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