LED light source for precise phototherapy and LED phototherapy instrument

Abstract

The utility model provides an LED light source for precise phototherapy and an LED phototherapy instrument. The LED light source is an LED light source array composed of a plurality of LEDs. A plurality of adjacent LEDs form an LED combination unit, and then a plurality of LED combination units form the LED light source array. Each LED combination unit is integrally and independently controlled by the first-stage control module to be turned on or turned off. All the LEDs in each LED combination unit are subdivided into a plurality of light-emitting areas, and the light-emitting areas are controlled by the second-stage control module to be turned on or turned off. According to the utility model, a high-density LED array is formed based on micro-sized LEDs, accurate phototherapy with higher requirements is realized, the shape of a lesion area can be matched, and irradiation intensity and dosage requirements of different positions of the lesion area can be well matched.

Description

Technical Field

[0001] The utility model relates to an LED light source for precise light therapy and an LED light therapy apparatus made based on the light source, belonging to the technical field of light therapy equipment. Background Art

[0002] Phototherapy is a medical device that uses light to treat different types of diseases or promote recovery, and is often used for skin treatment. UV phototherapy is a type of phototherapy device that stimulates the metabolism and function of skin cells by emitting ultraviolet rays of a specific wavelength to the affected area, thereby achieving a therapeutic effect. The light source of traditional UV phototherapy devices uses UV fluorescent tubes. With the development of UV LEDs, existing UV fluorescent tubes tend to be gradually replaced by them, because UV LEDs have a much longer service life than UV fluorescent tubes and their light emission is easier to control.

[0003] Patent application number 201510076249.5 discloses an ultraviolet light therapy device for precise irradiation, including a light source for emitting ultraviolet rays to irradiate the lesion area of ​​the skin, an image acquisition and analysis module, and a control module. The light source includes an LED array, each LED in the LED array is used to emit ultraviolet rays, the image acquisition and analysis module is used to acquire an image of the lesion area and determine the position information of the edge of the lesion area and send the edge position information to the control module, and the control module controls the light emission of each LED in the LED array according to the above position information, so that the light spot of the ultraviolet rays emitted by the light source on the skin has the same shape as the lesion area.

[0004] Different lesion areas have different shapes. The technical solution adopted by the above patent can control whether each LED emits light or not, which can better match the shape of the lesion area. However, the conditions of different lesion areas are also different, and the ultraviolet radiation dose required for each area should be different. The above patent cannot solve this problem.

[0005] Limited by the technical level at that time, the size of the LED used in the above patent was 1.016mm×0.508mm. In recent years, with the advancement of technology, the size of LED has become smaller. For example, the size of a single ultraviolet LED is as small as less than 100 microns. Such a tiny size of LED makes it possible to solve the above technical problems, thereby achieving more demanding precision light therapy. Utility Model Content

[0006] The technical problem to be solved by the utility model is that the existing phototherapy apparatus for precise irradiation can only perform irradiation of equal intensity according to the shape of the lesion area.

[0007] In order to solve the above technical problems, the first aspect of the utility model provides an LED light source for precision light therapy, wherein the LED light source is an LED light source array composed of a plurality of LEDs;

[0008] Multiple adjacent LEDs form an LED combination unit, and multiple LED combination units form an LED light source array;

[0009] Each LED combination unit is independently controlled to turn on or off by the first-level control module;

[0010] All LEDs in each LED combination unit are further divided into multiple light-emitting areas, and the second-level control module controls the turning on or off of these light-emitting areas.

[0011] In some embodiments, the size of each LED is less than 100 microns.

[0012] In some embodiments, the LED is a combination of one or more of an ultraviolet LED, an infrared LED, and a blue LED.

[0013] In some embodiments, all LEDs in the LED combination unit are ultraviolet LEDs.

[0014] In some embodiments, an LED combination unit is composed of 4×4, a total of 16 ultraviolet LEDs; the middle 4 ultraviolet LEDs are the first light-emitting area, which are turned on or off at the same time; the edge 12 LEDs are the second light-emitting area, which are turned on or off at the same time; the first light-emitting area and the second light-emitting area are independently controlled by the second-level control module.

[0015] In some embodiments, an LED combination unit is composed of 25 ultraviolet LEDs in a 5×5 arrangement; the one ultraviolet LED in the center is the first light-emitting area; the eight ultraviolet LEDs in a circle around the first light-emitting area are the second light-emitting area, and they are turned on or off at the same time; the 16 ultraviolet LEDs at the edge are the third light-emitting area, and they are turned on or off at the same time; the first light-emitting area, the second light-emitting area, and the third light-emitting area are independently controlled by the second-level control module respectively.

[0016] In some embodiments, an LED combination unit is composed of 4×4, a total of 16 LEDs; the 4 ultraviolet LEDs in the middle are the first light-emitting area, and they are turned on or off at the same time; the 12 infrared LEDs at the edge are the second light-emitting area, and they are turned on or off at the same time; the first light-emitting area and the second light-emitting area are independently controlled by the second-level control module.

[0017] A second aspect of the utility model provides an LED light therapy device for precision light therapy, comprising an LED light source and a control module;

[0018] The LED light source adopts the LED light source for precision light therapy provided in the first aspect above;

[0019] The control module includes a first-level control module and a second-level control module.

[0020] In some embodiments, an image acquisition and analysis module is also included, which is used to acquire the shape of the lesion area and determine the disease level of each position in the lesion area.

[0021] The beneficial effects of the utility model are as follows: based on tiny-sized LEDs, a high-density LED array is formed, which realizes precise phototherapy with higher requirements, and can not only match the shape of the lesion area, but also better match the irradiation intensity and dosage requirements of different positions in the lesion area. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall appearance of the LED light source array provided in Example 1 of the utility model.

[0023] Figure 2 It is a partially enlarged schematic diagram of the LED light source array provided in Example 1 of the utility model.

[0024] Figure 3 It is a schematic diagram of the overall appearance of the LED light source array provided in Example 2 of the present utility model.

[0025] Figure 4 It is a partially enlarged schematic diagram of the LED light source array provided in Example 2 of the utility model.

[0026] Figure 5 It is a partially enlarged schematic diagram of the LED light source array provided in Example 3 of the utility model.

[0027] The meanings of the reference numerals in the above figures are as follows:

[0028] 110 substrate

[0029] 120 LED combination unit

[0030] 121 First Lighting Area

[0031] 122 Second light-emitting area

[0032] 210 substrate

[0033] 220 LED combination unit

[0034] 221 First Lighting Area

[0035] 222 Second luminous area

[0036] 223 The third luminous area

[0037] 310 base plate

[0038] 320 LED combination unit

[0039] 321 First Luminous Area

[0040] 322 Second Lighting Area DETAILED DESCRIPTION

[0041] The words "first", "second" and similar terms used in this specification and claims do not indicate any order, quantity or importance, but are only used to distinguish different components. The words "one" or "an" and similar terms do not indicate a quantity limitation, but indicate the existence of at least one. In the description of this patent, unless otherwise specified, "multiple" means two or more.

[0042] In the description of this patent, words such as "including" or "having" and the like mean that the elements or objects appearing before "including" or "having" include the elements or objects listed after "including" or "having" and their equivalent elements, and do not exclude other elements or objects.

[0043] The ultraviolet light therapy device provided by this patent includes an LED light source array, an image acquisition and analysis module, and a control module. Among them, the light source array is used to emit light therapy light. The image acquisition and analysis module is used to obtain the shape of the lesion area of ​​the skin, and determine the degree of disease in the lesion area, and then send this information to the control module. The control module controls the light emission of each LED according to the above information, so that the light spot of the ultraviolet light emitted by the light source on the skin is the same as the shape of the lesion area, and the irradiation matches the condition of each position of the lesion. In this way, the light therapy device provides the corresponding irradiation intensity and dosage, which can achieve precise light therapy for the lesion area.

[0044] Example 1

[0045] The LED light source provided in this embodiment is as follows Figure 1 As shown, it is composed of a large number of ultraviolet LEDs of the same type, each LED having a size less than 100 microns, and these LEDs are mounted on a substrate 110 to form a dense LED light source array.

[0046] Multiple adjacent LEDs form an LED combination unit 120, and multiple LED combination units 120 are neatly arranged to form the above-mentioned light source array. Each LED combination unit 120 is independently controlled to be turned on or off by its corresponding first-level control module. The LEDs in each LED combination unit 120 are further subdivided into multiple light-emitting areas, and the light emission of these light-emitting areas is controlled by the second-level control module. In order to facilitate the heat dissipation of the ultraviolet LED, each LED can be separated from the adjacent LEDs by an appropriate distance.

[0047] A partial enlarged view of the LED combination unit 120 is shown in FIG. Figure 2 As shown, each LED combination unit 120 is composed of 16 LEDs arranged in a 4×4 small array. The 4 LEDs in the middle are the first light-emitting area 121, which are turned on or off at the same time. The 12 LEDs at the edge are the second light-emitting area 122, which are turned on or off at the same time. The first light-emitting area and the second light-emitting area are independently controlled by the second-level control module. The second-level control module will work only after the first-level control module sends an instruction to turn on a certain LED combination unit 120.

[0048] After the first-level control module sends a start instruction to one of the LED combination units 120, the second-level control module controls the first light-emitting area 121 and the second light-emitting area 122 to emit light individually or simultaneously, bringing different irradiation intensities. The combination of turning on or off the first light-emitting area 121 and the second light-emitting area 122 can theoretically form three different irradiation intensities: (1) Only the first light-emitting area 121 emits light, and a total of 4 LEDs emit light; (2) Only the second light-emitting area 122 emits light, and a total of 12 LEDs emit light; (3) Both the first light-emitting area 121 and the second light-emitting area emit light, and a total of 16 LEDs emit light. When this LED combination unit 120 does not receive the instruction from the first-level control module, all of its 16 LEDs are not illuminated.

[0049] Thus, the light source in this embodiment has a rectangular irradiation dot matrix surface. When the first-level control module controls each LED combination unit 120 to be turned on or off, a required LED lighting area can be formed in the irradiation surface. This area is substantially the same as the shape of the lesion area of ​​the patient to be irradiated. According to the severity of the disease at different locations in the lesion area, one of the three different irradiation intensities that can be combined is selected. In this area that needs to be lit, the second-level control module controls the first light-emitting area 121 and / or the second light-emitting area 122 to emit light.

[0050] It can be known that when the size of the LED is smaller, the number of LEDs in a unit area is greater, and the accuracy of the irradiation is higher. In this patent, the size of each LED is less than 100 microns, and the size of each LED combination unit 120 is less than 0.5 mm. There are hundreds of such LED combination units on an area of ​​one square centimeter, and they have a total of thousands of LEDs, with very high accuracy. Preferably, the light emitted by each LED is parallel light, that is, the ultraviolet light emitted by the LED light source is parallel light, so that the ultraviolet light will not affect the healthy skin due to the light emission angle. This can be achieved by using ultraviolet light LEDs that can emit parallel light beams, or by setting a lens or a lens group at the light-emitting surface of each ultraviolet light LED so that the light beam emitted by the ultraviolet light LED becomes a parallel light beam after passing through the lens.

[0051] Example 2

[0052] The light source array provided in this embodiment is as follows Figure 3 and Figure 4 As shown. Many LEDs are mounted on the substrate 210 to form a dense LED light source array. Each LED combination unit 220 is composed of 25 LEDs, arranged in a 5×5 small array, as shown in FIG. Figure 4 As shown. The central LED is the first light-emitting area 221. The middle 8 LEDs are the second light-emitting area 222, which surround the central first light-emitting area 221 and are turned on or off at the same time. The edge 16 LEDs are the third light-emitting area 223. The first light-emitting area 221, the second light-emitting area 222, and the third light-emitting area 223 are independently controlled by the second-level control module.

[0053] The second level control module will start working only after the first level control module sends a start instruction to one of the LED combination units 220. The second level control module controls the first light-emitting area 221, the second light-emitting area 222, and the third light-emitting area 223 to emit light individually or simultaneously, bringing different irradiation intensities. Theoretically, there are 7 different irradiation intensities when the first light-emitting area 221, the second light-emitting area 222, and the third light-emitting area 223 are turned on and off: (1) only the first light-emitting area 221 is lit, and a total of 1 LED is lit; (2) only the second light-emitting area 222 is lit, and a total of 8 LEDs are lit; (3) both the first light-emitting area 221 and the second light-emitting area 222 are lit, and a total of 9 LEDs are lit; (4) only the third light-emitting area 223 is lit, and a total of 16 LEDs are lit; (5) both the third light-emitting area 223 and the first light-emitting area 221 are lit, and a total of 17 LEDs are lit; (6) both the third light-emitting area 223 and the second light-emitting area 222 are lit, and a total of 24 LEDs are lit; (7) the first light-emitting area 221, the second light-emitting area 222, and the third light-emitting area 223 are all lit, and a total of 25 LEDs of an LED combination unit 220 are all lit. When this LED combination unit 120 does not receive instructions from the first-level control module, all of its 25 LEDs are not lit.

[0054] Example 3

[0055] In addition to ultraviolet LEDs, other LED light sources may also be partially used, such as infrared LEDs, blue LEDs, etc., which form a mixed light source with ultraviolet LEDs. In this embodiment, ultraviolet LEDs and infrared LEDs are installed together on the substrate 310 to form a dense mixed LED light source array. This mixed light source is used in phototherapy occasions that require both ultraviolet light and infrared light.

[0056] An LED combination unit 320 is composed of 16 LEDs in a 4×4 arrangement. The 4 ultraviolet LEDs in the middle are the first light-emitting area 321, which are turned on or off at the same time. The 12 infrared LEDs at the edge are the second light-emitting area, which are turned on or off at the same time. The first light-emitting area and the second light-emitting area are independently controlled by the second-level control module.

[0057] Ultraviolet light has a short wavelength and high energy. Infrared light has a longer wavelength and relatively lower energy. Therefore, the four LEDs in the first light-emitting area 321 are ultraviolet LEDs, and the four LEDs in the second light-emitting area 322 are infrared LEDs. This configuration of a small number of ultraviolet LEDs and a large number of infrared LEDs makes the irradiation time of ultraviolet light and infrared light similar, which can meet special treatment needs. Compared with the separate irradiation of the two lights, the simultaneous irradiation of ultraviolet light and infrared light can shorten the overall treatment time. Ultraviolet light and infrared light are emitted from almost the same position, which meets the needs of precise treatment.

[0058] Example 4

[0059] In the above three embodiments, all LEDs are not adjustable in power and can only be turned on or off, which makes it easy to control them. In order to achieve more accurate irradiation, the power of each LED can be adjusted, but this will increase the complexity of the control module.

[0060] If the size of a single LED is larger than 100 microns, for example, between 200 microns and 500 microns, the number of LEDs per unit area is greatly reduced, but the shape of the lesion area can basically be matched. In this way, the luminous intensity and duration of each LED can be adjusted individually, which can well match the irradiation intensity and dose requirements of different positions in the lesion area.

[0061] The above describes in detail the preferred specific embodiments of the utility model. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the utility model without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. An LED light source for precision light therapy, characterized in that: The LED light source is an LED light source array composed of a plurality of LEDs; A plurality of adjacent LEDs form an LED combination unit, and a plurality of LED combination units form the LED light source array; Each LED combination unit is independently controlled to be turned on or off by the first-level control module; All LEDs in each LED combination unit are further divided into a plurality of light-emitting areas, and the second-level control module controls the turning on or off of these light-emitting areas.

2. The LED light source for precision phototherapy according to claim 1, characterized in that: The size of each LED is less than 100 microns.

3. The LED light source for precision light therapy according to claim 1, characterized in that: The LED is a combination of one or more of an ultraviolet LED, an infrared LED, and a blue LED.

4. The LED light source for precision phototherapy according to claim 3, characterized in that: All LEDs in the LED combination unit are ultraviolet LEDs.

5. The LED light source for precision phototherapy according to claim 4, characterized in that: One LED combination unit is composed of 4×4, a total of 16 ultraviolet LEDs; the 4 ultraviolet LEDs in the middle are the first light-emitting area, which are turned on or off at the same time; the 12 LEDs on the edge are the second light-emitting area, which are turned on or off at the same time; the first light-emitting area and the second light-emitting area are independently controlled by the second-level control module.

6. The LED light source for precision light therapy according to claim 4, characterized in that: One LED combination unit is composed of 25 ultraviolet LEDs in a 5×5 arrangement; the ultraviolet LED in the center is the first light-emitting area; the eight ultraviolet LEDs in a circle around the first light-emitting area are the second light-emitting area, which are turned on or off at the same time; the 16 ultraviolet LEDs at the edge are the third light-emitting area, which are turned on or off at the same time; the first light-emitting area, the second light-emitting area, and the third light-emitting area are independently controlled by the second-level control module respectively.

7. The LED light source for precision light therapy according to claim 3, characterized in that: One LED combination unit is composed of 4×4 LEDs, a total of 16 LEDs; the 4 ultraviolet LEDs in the middle are the first light-emitting area, which are turned on or off at the same time; the 12 infrared LEDs on the edge are the second light-emitting area, which are turned on or off at the same time; the first light-emitting area and the second light-emitting area are independently controlled by the second-level control module.

8. An LED light therapy device for precision light therapy, characterized in that: Including LED light source and control module; The LED light source adopts the LED light source for precision light therapy as claimed in claim 1; The control module includes a first-level control module and a second-level control module.

9. The LED light therapy device for precision light therapy according to claim 8, characterized in that: It also includes an image acquisition and analysis module, which is used to acquire the shape of the lesion area and determine the disease level of each position of the lesion area.

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