TWI826303B - Phototherapy device with adjustable light source - Google Patents

Abstract

This invention provides a phototherapy device with adjustable light source, which is adapted to irradiate an affected area of a patient and comprises a carrier unit, a lighting module, and a wavelength conversion components. The carrier unit includes a base and a joint that is disposed to the base and near to the affected area relative to the base. The base has a base wall, and a surrounding wall that extends from a perimeter of the base to the joint and defines housing with the base wall. An end of the surrounding wall distant from the base wall and the joint together define a mezzanine space. The joint has an opening that exposes the mezzanine space. The lighting module includes a circuit board disposed in the housing, and an array of UVLEDs electrically connects with the circuit board. The wavelength conversion components dispose detachably into the mezzanine space and includes a transparent board and a wavelength conversion layer disposed on the transparent board.

Description

Adjustable light source phototherapy device

The present invention relates to a light-emitting device, and in particular, to a phototherapy device with an adjustable light source.

Phototherapy has been proven by the medical-related industries to be effective in treating symptoms such as acne, vitiligo, and pathological jaundice. In the past decade, more medical institutions have focused on the effectiveness of light therapy on symptoms such as seasonal depression, major depressive disorder, bulimia, and generalized anxiety disorder. The light sources currently used in phototherapy devices have fixed wavelengths. Therefore, if different wavelengths need to be changed during phototherapy to cater for different patients, the entire phototherapy device usually has to be replaced to meet the needs of different patients. In addition, the light-emitting diode (LED) light source used for phototherapy has a relatively fixed wavelength of each color of light, which causes the wavelength emitted by the light source to have an error with the wavelength required for actual phototherapy, and cannot accurately match the wavelength required for actual phototherapy.

Referring to Figures 1 and 2, the Republic of China Early Publication Invention Patent No. TW202012014A (hereinafter referred to as the former case) discloses an existing phototherapy device 1, which is used to be combined with a piece of wearable clothing (not shown), which includes a contact carrier. The base 11, a light-emitting module 12, a heat-absorbing module 13 for regulating the high heat generated by the light-emitting module 12 during operation, a control circuit 14, a power supply unit 15, and an outer cover 16. The contact carrier 11 has a light-transmitting area 111 and a plurality of light-emitting holes 110 penetrating the light-transmitting area 111 . The light-emitting module 12 has a circuit board 121 fixed on the light-transmitting area 111 , and a plurality of light-emitting elements 122 electrically connected to the circuit board 121 and corresponding to the light-emitting holes 110 facing the light-transmitting area 111 . The heat-absorbing module 13 is disposed on the light-emitting module 12 and has a frame 131, a phase change material (not shown) accommodated in the frame 131, and a cover covering the phase change material. 132. The control circuit 14 and the power supply unit 15 are disposed on the contact carrier 11 so as to be located on a periphery of the light-transmitting area 111 . The outer cover 16 covers the light-emitting module 12 , the heat-absorbing module 13 , the control circuit 14 and the power supply unit 15 .

Although the existing phototherapy device 1 can use the heat-absorbing module 13 to adjust the high heat generated by the light-emitting module 12 during operation. However, the wavelength ranges applicable to different symptoms vary. The light-emitting module 12 of the existing phototherapy device 1 is fixed on the contact carrier 11. Therefore, when the phototherapy waveband required by different patients is not the waveband radiated by the light-emitting module 12, it cannot meet the needs of different patients. need.

From the above description, it can be seen that improving the structure of the phototherapy device so that it can meet the needs of different patients is a subject that needs to be broken through by relevant technical personnel in the technical field to which this case belongs.

Therefore, an object of the present invention is to provide a light therapy device with an adjustable light source that can meet the needs of different patients.

Therefore, the phototherapy device with adjustable light source of the present invention is suitable for irradiating an affected area of a patient, and includes a carrying unit, a light-emitting module, and a wavelength conversion component. The carrier unit includes a base, and an engaging member disposed on the base and adjacent to the affected area relative to the base. The base has a base wall, and a surrounding wall extending from a periphery of the base wall toward the joint and defining a chamber together with the base wall. An end edge of the surrounding wall away from the base wall and the joint member jointly define a mezzanine space. The joint member has an opening exposing the interlayer space. The light-emitting module is disposed in the chamber and includes a circuit board and an ultraviolet light-emitting diode array electrically connected to the circuit board. The wavelength conversion component is detachably disposed in the interlayer space and includes a light-transmitting carrier plate and a wavelength conversion layer disposed on the light-transmissive carrier plate.

The effect of the present invention is that through the interlayer space formed by the structure of the carrier unit, wavelength conversion components that meet the wavelength bands required by different patients can be easily replaced according to the wavelength bands required by different patients.

Referring to Figures 3 and 4, a first embodiment of the phototherapy device with adjustable light source of the present invention is suitable for a medical staff to irradiate it to an affected area of a patient (not shown). The adjustable light source phototherapy device according to the first embodiment of the present invention includes a carrier unit 2 , a light emitting module 3 , a wavelength conversion component 4 , a heat dissipation unit 5 , and a transformer 6 .

The carrier unit 2 includes a base 21 and an engaging member 22 disposed on the base 21 and adjacent to the affected area relative to the base 21 . The base 21 has a base wall 211 , and a surrounding wall 212 extending from an edge of the base wall 211 toward the joint 22 and defining a chamber 20 together with the base wall 211 . An end edge 2121 of the surrounding wall 212 away from the base wall 211 and the joint member 22 jointly define an interlayer space 2201. The surrounding wall 212 of the base 21 has an annular groove 2122 that is recessed from an inner annular surface toward an outer annular surface. The joint member 22 has an opening 2202 exposing the interlayer space 2201 . In the first embodiment of the present invention, the base 21 and the joint member 22 of the carrier unit 2 are integrally formed. The joint member 22 has a peripheral wall 221 connected to the end edge 2121 of the surrounding wall 212 of the base 21, and a baffle extending from an end edge of the peripheral wall 221 away from the base 21 to define its opening 2202. 222. As shown in FIG. 4 , a extraction port 2210 is provided on one side of the peripheral wall 221 to expose the mezzanine space 2201 . In the first embodiment of the present invention, the mezzanine space 2201 is jointly defined by the end edge 2121 of the surrounding wall 212 of the base 21 , the peripheral wall 221 of the joint member 22 and the baffle 222 .

The light-emitting module 3 is disposed in the chamber 20 and includes a circuit board 31 and an array of ultraviolet light-emitting diodes 32 electrically connected to the circuit board 31 . An edge of the circuit board 31 of the light-emitting module 3 is disposed in the annular groove 2122 of the surrounding wall 212 of the base 21 .

The wavelength conversion component 4 is detachably disposed in the interlayer space 2201, and includes a light-transmitting carrier plate 41, a wavelength conversion layer 42 disposed on a first surface of the light-transmissive carrier plate 41, and a wire grid. Polarizer 43. The wire grid polarizer 43 faces the ultraviolet light emitting diode array 32 and is disposed on a second surface of the light-transmitting carrier plate 41 opposite to the first surface. It should be noted here that the purpose of the wire grid polarizer 43 is to prevent the light source emitted from the ultraviolet light emitting diode array 32 from being reflected back to its original location. The wavelength conversion layer 42 suitable for the first embodiment of the present invention may be selected from a phosphor coating layer or a QDs coating layer.

The heat dissipation unit 5 is disposed in the chamber 20 and used to remove the heat generated by the light emitting module 3 during operation. In the first embodiment of the present invention, the heat dissipation unit 5 is a plurality of axial flow heat dissipation fans. Each axial flow cooling fan has a fan 51 and a signal connection line 52 connecting the fan 51 and the circuit board 31 of the light-emitting module 3 .

The transformer 6 is disposed in the chamber 20 and is powered by a power supply (not shown) outside the carrier unit 2, and is signal-connected to the circuit board 31 of the light-emitting module 3 for converting a voltage of 110V. Step down to the 24V required by the circuit board 31.

Specifically, in the first embodiment of the present invention, the wavelength conversion component 4 is disassembled or installed through the extraction port 2210 provided at the peripheral wall 221 of the joint member 22 of the carrier unit 2 . When the affected areas of patients with different symptoms need to change light sources of different bands, the medical staff only need to remove the wavelength conversion component 4 from the mezzanine space 2201 from the extraction port 2210, and then replace it with the wavelength conversion component that meets the needs of different patients. The wavelength conversion component 4 can be supplied to different patients.

Referring to FIG. 5 , a second embodiment of the adjustable light source phototherapy device of the present invention is substantially the same as the first embodiment. The difference lies in the detailed structure of the joint member 22 of the carrier unit 2 . Specifically, the base 21 and the joint member 22 of the carrier unit 2 of the second embodiment of the present invention are integrally formed and made of a plastic material. The joint member 22 has an annular wall 223 connected to the end edge 2121 of the surrounding wall 212 of the base 21, and an end edge extending from the annular wall 223 away from the base 21 to define its opening 2202. Snap plate 224. As shown in FIG. 5 , an outer surface 2241 of the buckle plate 224 away from the mezzanine space 2201 is an inclined plane inclined from the outside to the inside. In the second embodiment of the present invention, the mezzanine space 2201 is jointly defined by the end edge 2121 of the surrounding wall 212 of the base 21 , the annular wall 223 of the joint member 22 and the snap plate 224 .

Specifically, the base 21 and the joint member 22 of the carrier unit 2 are made of the plastic material through integral molding. Therefore, the mechanical properties of the snap plate 224 of the joint member 22 are between elasticity and plasticity. When the wavelength conversion component 4 needs to be replaced, the medical staff only needs to provide a slight reverse pressure to the buckle plate 224 to easily open the buckle plate 224, and with the assistance of another medical staff, the buckle plate 224 can be easily removed. After the wavelength conversion component 4 is removed from the mezzanine space 2201 upward, the wavelength conversion component 4 that meets the wavelength bands required by different patients is pressed downward along the outer surface (slope) 2241 of the buckle plate 224 to lock the card. The buckle plate 224 provides the reverse pressure, so that the buckle plate 224 can easily withstand the reverse pressure and embed the wavelength conversion component 4 in the required wavelength band into the interlayer space 2201 .

Referring to FIG. 6 , a third embodiment of the light therapy device with adjustable light source of the present invention is substantially the same as the first embodiment, and the difference lies in the detailed structure of the carrier unit 2 . Specifically, the carrier unit 2 of the third embodiment of the present invention further includes a set of fixing components 23, and the base 21 of the carrier unit 2 also has an end edge 2121 protruding outward from the surrounding wall 212. The convex eaves 213. The joint member 22 has a convex eaves 225 contacting the convex eaves 213 of the base 21 , a surrounding wall 226 extending from the convex eaves 225 toward the affected area, and an end from the surrounding wall 226 away from the base 21 The edges extend toward each other to define a shutter 227 having an opening 2202 thereof. In the third embodiment of the present invention, the mezzanine space 2201 is jointly defined by the end edge 2121 of the surrounding wall 212 of the base 21 , the surrounding wall 226 of the joint member 22 and the shield 227 . The set of fixing components 23 is used to fix the convex eaves 225 of the joint member 22 to the convex eaves 213 of the base 21 . In the third embodiment of the present invention, each fixing component 23 is a bolt and nut set.

Specifically, because the convex eaves 225 of the joint member 22 of the carrier unit 2 is fixed to the convex eaves 213 of the base 21 through the set of fixing components 23 . Therefore, when the wavelength conversion component 4 needs to be replaced, the medical staff only needs to disassemble each fixing component (bolt and nut set) 23 to easily dismantle the joint 22 to remove the connecting member 22 upward from the mezzanine space 2201. After the wavelength conversion component 4 is installed, the wavelength conversion component 4 that meets the wavelength bands required by different patients is placed into the mezzanine space 2201 and the joint 22 is reassembled to the base 21 through the fixing components 23 to supply it to different patients. use.

To sum up, the adjustable light source phototherapy device of the present invention can easily replace the wavelength conversion component 4 according to the wavelength bands required by different patients through the mezzanine space 2201 of the carrier unit 2, so it is indeed The purpose of the present invention can be achieved.

However, the above are only examples of the present invention and should not be used to limit the scope of the present invention. All simple equivalent changes and modifications made based on the patent scope of the present invention and the content of the patent specification are still within the scope of the present invention. within the scope covered by the patent of this invention.

2: Carrying unit 20:Room 21:Pedestal 211:Base wall 212: wall 2121: Duan Yuan 2122: Ring groove 213:Protruding eaves 22:joint parts 2201:Mezzanine space 2202:Open your mouth 221: Surrounding wall 2210:Exchange port 222:Baffle 223: Ring wall 224: snap plate 2241:Outer surface (slope) 225:Protruding eaves 226: around the wall 227: Shutter 23: Fixed components 3:Light-emitting module 31:Circuit board 32:UV light emitting diode 4: Wavelength conversion component 41: Translucent carrier plate 42:Wavelength conversion layer 43: Wire grid polarizer 5: Cooling unit 51:Fan 52:Signal connection cable 6: Transformer

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Figure 1 is a perspective view from above, illustrating an existing phototherapy device disclosed in the Early Publication Patent No. TW202012014A of the Republic of China; Figure 2 is an exploded perspective view of Figure 1 , illustrating the detailed structure of the conventional phototherapy device; Figure 3 is a partial cross-sectional view illustrating a first embodiment of the phototherapy device with adjustable light source according to the present invention; Figure 4 is a perspective view illustrating the detailed structure of the carrier unit according to the first embodiment of the present invention; Figure 5 is a partial cross-sectional view illustrating a second embodiment of the phototherapy device with adjustable light source according to the present invention; and Figure 6 is a partial cross-sectional view illustrating a third embodiment of the phototherapy device with adjustable light source according to the present invention.

2: Carrying unit

20:Room

21:Pedestal

211:Base wall

212: wall

2121: Duan Yuan

2122: Ring groove

22:joint parts

2201:Mezzanine space

2202:Open your mouth

221: Surrounding wall

222:Baffle

3:Light-emitting module

31:Circuit board

32:UV light emitting diode

4: Wavelength conversion component

41: Translucent carrier plate

42:Wavelength conversion layer

43: Wire grid polarizer

5: Cooling unit

51:Fan

52:Signal connection cable

6: Transformer

Claims (9)

A phototherapy device with an adjustable light source, suitable for irradiating an affected area of a patient, which includes: a carrier unit, including a base and an engaging member disposed on the base and adjacent to the affected area relative to the base, the base The seat has a base wall and a surrounding wall that extends from an edge of the base wall toward the joint and defines a chamber together with the base wall. The surrounding wall is common with the joint at an end edge away from the base wall. A mezzanine space is defined, the joint has an opening exposing the mezzanine space; a light-emitting module is arranged in the chamber and includes a circuit board, and an ultraviolet light-emitting diode electrically connected to the circuit board Array; and a wavelength conversion component, which is detachably disposed in the mezzanine space and includes a light-transmissive carrier plate and a wavelength conversion layer disposed on the light-transmissive carrier plate. The phototherapy device with an adjustable light source as claimed in claim 1, wherein the surrounding wall of the base has an annular groove that is recessed from an inner annular surface toward an outer annular surface, and a circumference of the circuit board of the light-emitting module The edge is arranged in the annular groove. The phototherapy device with adjustable light source as claimed in claim 1, wherein the base of the base unit and the joint member are integrally formed, and the joint member has a peripheral wall connected to the end edge of the surrounding wall of the base, and a baffle extending from one end edge of the peripheral wall to define its opening. One side of the peripheral wall is provided with a withdrawal opening exposing the mezzanine space. Through the end edge of the peripheral wall of the base, the joint The surrounding walls and baffles jointly define the mezzanine space. The light therapy device with adjustable light source as described in claim 1, wherein the carrier The base and the joint member of the unit are integrally formed and made of a plastic material. The joint member has an annular wall connected to the end edge of the surrounding wall of the base, and an end edge extending oppositely from the annular wall. A buckle plate is used to define its opening. An outer surface of the buckle plate away from the mezzanine space is a slope inclined from the outside to the inside. Through the end edge of the surrounding wall of the base and the ring wall of the joint Together with the buckle board, the mezzanine space is defined. The light therapy device with adjustable light source according to claim 1, wherein the base unit further includes a set of fixing components, and the base of the base unit also has a protrusion protruding outward from the end edge of the surrounding wall. Eaves, the joint member has a convex eaves contacting the convex eaves of the base, a surrounding wall extending from the convex eaves of the joint member toward the affected area, and an end edge extending oppositely from the surrounding wall to define its opening The cover plate defines the mezzanine space through the end edge of the surrounding wall of the base, the surrounding wall of the joint and the cover. The set of fixing components is used to fix the convex eaves of the joint to the convex part of the base. Eaves. The adjustable light source phototherapy device of claim 1, wherein the wavelength conversion component further includes a wire grid polarizer facing the ultraviolet light emitting diode array and disposed on the light-transmitting carrier plate . The phototherapy device with adjustable light source as claimed in claim 1, wherein the wavelength conversion layer is selected from a phosphor coating or a quantum dot coating. The adjustable light source phototherapy device of claim 1 further includes a heat dissipation unit, which is disposed in the chamber and used to remove the heat generated by the light-emitting module during operation. The light therapy device with adjustable light source as described in claim 1 also includes a transformer, which is disposed in the chamber and connected with the signal to the luminous Module circuit board.

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