Pressure sore diagnosis system and method based on depth data using multispectral light source

Abstract

According to the present invention, provided is a pressure sore diagnosis system and method based on depth data using a multispectral light source, the pressure sore diagnosis system based on depth data using a multispectral light source comprising: a light irradiation unit for irradiating light to the skin of a body part to diagnose a pressure sore; a measurement unit that measures light transmittance by using reflected light reflected by the light irradiation unit after the light irradiation unit irradiates light to the skin of the body part to diagnose a pressure sore; and a pressure sore diagnosis unit that diagnoses the state of a pressure sore on the basis of the light transmittance measured by the measurement unit, and that can detect skin abnormalities caused by the occurrence of a pressure sore using the optical principle of the difference in skin transmittance at each wavelength of the multispectral light source.

Description

Technical Field

[0001] The present invention relates to a pressure sore diagnosis system and method based on depth data using a multi-spectral light source, and more specifically, to a pressure sore diagnosis system and method based on depth data using a multi-spectral light source, which can detect skin abnormalities caused by pressure sores using the optical principle of the difference in skin transmittance of each wavelength of the multi-spectral light source. Background Art

[0002] Generally, pressure sores (Pressure Ulcer, Pressure Sore) refer to the following state: when sitting or lying in a certain posture for a long time, a part of the body is continuously under pressure, and blood circulation in that part is impaired (ischemic state), resulting in damage to the subcutaneous tissue of that part (ulcer). This type of pressure sore often occurs in patients who are unconscious, patients who cannot move due to brain or spinal nerve damage, critically ill patients, and patients with general weakness. As mentioned above, pressure sores are pressure necrosis that usually occurs in areas that are in direct contact with the floor when seriously ill patients lie in hospital beds for a long time. When there is no exercise for a long time, the skin on the protruding bones will be compressed and blood circulation will be blocked, causing the skin to die and rot due to lack of oxygen and form pressure sores.

[0003] Furthermore, pressure sores can occur anywhere, but mainly occur in areas that are subject to greater pressure, such as the occipital bone, shoulders, buttocks (sacral area, sciatic area), greater trochanter (when lying on the side), heels, tibia, etc. In the early stages of pressure sores, the skin of the area receiving pressure becomes red, and then a cut-like ulcer appears on the skin at that location, leading to skin necrosis.

[0004] Figure 1 FIG. 1 is a diagram showing the skin condition of pressure sores according to the classification of pressure sores by stage. Figure 1 As shown, pressure sores go through a 4-stage process. In the first stage of pressure sores, although no skin damage is observed, the skin is warm and hard. After the pressure is removed, the skin still appears red even after 5 minutes. It will return to its original state when the pressure is released, and it can be restored by changing the body position. In the second stage of pressure sores, the skin will break, resulting in abrasions and blisters, etc. When the edema is severe and invades the fat layer, pain will occur. In this case, when the pressure is released, it can be restored within 1 to 2 weeks. In the third stage of pressure sores, the subcutaneous tissue is necrotic and there is a foul-smelling exudate. Although there is no pain, severe swelling and necrotic tissue are observed, and it takes several months to remove the necrotic tissue and restore. In the fourth step of pressure sores, tissue necrosis occurs extensively in muscles, bones, supporting tissues (tendons, joints), etc. Necrotic tissue is visible and surgical treatment (skin grafting, flap surgery, etc.) is required.

[0005] Furthermore, pressure sores do not occur when the entire affected area is damaged to a certain extent, but rather occur in different degrees. That is, even in the same affected area, different parts present various forms from the first stage to the fourth stage. Therefore, even in the same affected area, appropriate treatment and treatment methods are required. In particular, pressure sores occur in different sizes and degrees, so accurate diagnosis and appropriate treatment are required.

[0006] As described above, although there are clear criteria for the diagnosis of pressure sores, most diagnoses are determined by confirmation of a risk assessment system based on a doctor's visual inspection. This is an empirical diagnosis, and different diagnostic contents may be presented depending on the diagnoser. The existing method that relies on the experience of the diagnoser has a probability of misdiagnosis, and a diagnosis system based on standardized data related to pressure sore grading is required. Korean Patent Publication No. 10-2012-0072701 is proposed as a prior art document. Summary of the invention

[0007] Technical issues

[0008] The present invention is proposed to solve the above-mentioned problems of multiple methods proposed in the prior art. The purpose of the present invention is to provide the following pressure sore diagnosis system and method based on depth data using a multi-spectral light source. The above-mentioned pressure sore diagnosis system based on depth data using a multi-spectral light source includes: a light irradiation unit, which irradiates light to the skin of a body part to diagnose pressure sores; a measuring unit, which measures light transmittance using reflected light after the light irradiation unit irradiates light to the skin of a body part to diagnose pressure sores; and a pressure sore diagnosis unit, which diagnoses the pressure sore state based on the light transmittance measured by the measuring unit, and can use the optical principle of the difference in skin transmittance of each wavelength of the multi-spectral light source to detect skin abnormalities caused by the occurrence of pressure sores.

[0009] Furthermore, another object of the present invention is to provide a pressure sore diagnosis system and method based on depth data using a multi-spectral light source, which can detect skin abnormalities caused by pressure sores using the optical principle of skin transmittance differences at each wavelength of the multi-spectral light source. Thus, when light penetrates the skin, based on the optical principle that each wavelength has different characteristics, the light transmittance differences can be obtained by learning big data, and the status of each stage of the pressure sore can be quantitatively analyzed and diagnosed, and the depth of development of the pressure sore can be non-invasively diagnosed.

[0010] Furthermore, another object of the present invention is to provide a pressure sore diagnosis system and method based on depth data using a multi-spectral light source, which uses standardized depth data related to pressure sore grading to diagnose pressure sores. The above-mentioned light transmittance difference is obtained using the optical principle of skin transmittance difference at each wavelength of the multi-spectral light source, and the progress of the pressure sore can be presented in three dimensions. Based on this, the misdiagnosis rate of pressure sore diagnosis is reduced, and the accuracy of pressure sore diagnosis can be further improved.

[0011] Technical Solution

[0012] The pressure sore diagnosis system based on depth data using a multi-spectral light source, which is a feature of the present invention for achieving the above-mentioned purpose, is characterized in that it includes: a light irradiation unit, which irradiates light to the skin of a body part to diagnose pressure sores; a measuring unit, which measures light transmittance using reflected light after the light irradiation unit irradiates light to the skin of a body part to diagnose pressure sores; and a pressure sore diagnosis unit, which diagnoses the pressure sore state based on the light transmittance measured by the measuring unit.

[0013] Preferably, the light irradiation unit may be composed of a multi-wavelength light source device, which irradiates light onto the skin of a body part to diagnose pressure sores, and the wavelength can be selected according to the absorption wavelength characteristics of biological tissues.

[0014] More preferably, the light irradiation unit may be composed of a multi-wavelength light source device capable of selecting a wavelength according to the absorption wavelength characteristics of biological tissue, and irradiates light with a wavelength of 600 to 900 nm.

[0015] Preferably, the above-mentioned light irradiation part may include: a light source part, which irradiates a multi-spectrum light source of different wavelengths for diagnosing pressure sores to the same skin part; a main body part, which is provided with the above-mentioned light source part for irradiating the multi-spectrum light source of different wavelengths; and a control part, which is provided in the above-mentioned main body part and controls the light irradiation of the above-mentioned light source part for irradiating the multi-spectrum light source of different wavelengths.

[0016] More preferably, after the light irradiation unit irradiates light onto the skin of a body part to diagnose pressure sores, the measuring unit can use the reflected light to measure the light transmittance, and the light transmittance is composed of depth data of skin characteristics of each wavelength of the multi-spectral light source.

[0017] More preferably, the measuring unit may be composed of a depth camera that measures depth data of skin characteristics for each wavelength of the multi-spectral light source of the light irradiation unit.

[0018] More preferably, the pressure sore diagnosis unit can diagnose the pressure sore state based on the light transmittance measured by the measurement unit, obtain the light transmittance difference by learning big data, and diagnose the pressure sore from the depth data of the state of each stage of the pressure sore quantitatively analyzed.

[0019] Further preferably, the pressure sore diagnosis unit can obtain light transmittance differences by learning big data, quantitatively analyze the state of each stage of the pressure sore to diagnose the pressure sore, and non-invasively diagnose the development depth of the pressure sore.

[0020] The pressure sore diagnosis method based on depth data using a multi-spectral light source, which is a feature of the present invention for achieving the above-mentioned purpose, is characterized in that it includes: step (1), in which a light irradiation unit irradiates light onto the skin of a body part to diagnose a pressure sore; step (2), after the light irradiation unit irradiates light onto the skin of a body part to diagnose a pressure sore, a measuring unit measures light transmittance using the reflected light; and step (3), in which the pressure sore diagnosis unit diagnoses the pressure sore state based on the light transmittance measured by the measuring unit.

[0021] Preferably, the light irradiation unit may be composed of a multi-wavelength light source device, which irradiates light onto the skin of a body part to diagnose pressure sores, and the wavelength can be selected according to the absorption wavelength characteristics of biological tissues.

[0022] More preferably, the light irradiation unit may be composed of a multi-wavelength light source device capable of selecting a wavelength according to the absorption wavelength characteristics of biological tissue, and irradiates light with a wavelength of 600 to 900 nm.

[0023] Preferably, the above-mentioned light irradiation part may include: a light source part, which irradiates a multi-spectrum light source of different wavelengths for diagnosing pressure sores to the same skin part; a main body part, which is provided with the above-mentioned light source part for irradiating the multi-spectrum light source of different wavelengths; and a control part, which is provided in the above-mentioned main body part and controls the light irradiation of the above-mentioned light source part for irradiating the multi-spectrum light source of different wavelengths.

[0024] More preferably, after the light irradiation unit irradiates light onto the skin of a body part to diagnose pressure sores, the measuring unit can use the reflected light to measure light transmittance, and the light transmittance is composed of depth data of skin characteristics for each wavelength of the multi-spectral light source.

[0025] More preferably, the measuring unit may be composed of a depth camera that measures depth data of skin characteristics for each wavelength of the multi-spectral light source of the light irradiation unit.

[0026] More preferably, the pressure sore diagnosis unit can diagnose the pressure sore state based on the light transmittance measured by the measurement unit, obtain the light transmittance difference by learning big data, and diagnose the pressure sore from the depth data of the state of each stage of the pressure sore quantitatively analyzed.

[0027] Further preferably, the pressure sore diagnosis unit can obtain light transmittance differences by learning big data, quantitatively analyze the state of each stage of the pressure sore to diagnose the pressure sore, and non-invasively diagnose the development depth of the pressure sore.

[0028] Effects of the Invention

[0029] According to the pressure sore diagnosis system and method based on depth data using a multi-spectral light source proposed in the present invention, the pressure sore diagnosis system based on depth data using a multi-spectral light source includes: a light irradiation unit, which irradiates light to the skin of a body part to diagnose pressure sores; a measuring unit, which measures light transmittance using reflected light after the light irradiation unit irradiates light to the skin of a body part to diagnose pressure sores; and a pressure sore diagnosis unit, which diagnoses the pressure sore state based on the light transmittance measured by the measuring unit, and can use the optical principle of the difference in skin transmittance of each wavelength of the multi-spectral light source to detect skin abnormalities caused by the occurrence of pressure sores.

[0030] Furthermore, according to the pressure sore diagnosis system and method based on depth data utilizing a multi-spectral light source of the present invention, the optical principle of the difference in skin transmittance at each wavelength of the multi-spectral light source can be used to detect skin abnormalities caused by the occurrence of pressure sores. Thus, when light penetrates the skin, based on the optical principle that each wavelength has different characteristics, the difference in light transmittance can be obtained by learning big data, the status of each stage of the pressure sore can be quantitatively analyzed and the pressure sore can be diagnosed, and the depth of development of the pressure sore can be non-invasively diagnosed.

[0031] Moreover, according to the pressure sore diagnosis system and method based on depth data utilizing a multi-spectral light source of the present invention, standardized depth data related to pressure sore grading is utilized to diagnose pressure sores, and the above-mentioned light transmittance difference is acquired utilizing the optical principle of the skin transmittance difference of each wavelength of the multi-spectral light source, and the progress status of the pressure sore can be presented in three dimensions. Based on this, the misdiagnosis rate of pressure sore diagnosis is reduced, and the accuracy of pressure sore diagnosis can be further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A diagram showing the skin conditions of pressure sores according to classification of pressure sores by stage.

[0033] Figure 2 The diagram shows the structure of a pressure sore diagnosis system based on depth data using a multi-spectral light source according to an embodiment of the present invention in the form of functional blocks.

[0034] Figure 3 The diagram shows the structure of a light irradiation unit of a pressure sore diagnosis system based on depth data using a multi-spectral light source according to an embodiment of the present invention in the form of functional blocks.

[0035] Figure 4 The diagram shows the structure of the light source unit of the pressure sore diagnosis system based on depth data using a multi-spectral light source according to one embodiment of the present invention in the form of functional blocks.

[0036] Figure 5 This is a diagram showing a schematic configuration of an example of measurement by a pressure sore diagnostic system based on depth data using a multi-spectral light source according to an embodiment of the present invention.

[0037] Figure 6The figure is a diagram showing the skin transmittance of each wavelength of the multi-spectrum of the pressure sore diagnosis system based on the depth data using the multi-spectrum light source according to one embodiment of the present invention.

[0038] Figure 7 The flowchart is a method for diagnosing pressure sores based on depth data using a multi-spectral light source according to an embodiment of the present invention.

[0039] Description of Reference Numerals

[0040] 100: Pressure ulcer diagnosis system according to an embodiment of the present invention

[0041] 110: Light irradiation part

[0042] 111: Light source

[0043] 112: Ontology Department

[0044] 113: Control Department

[0045] 120: Measurement Department

[0046] 130: Pressure Ulcer Diagnosis Department

[0047] S110: Steps for irradiating light onto the skin of a body part

[0048] S120: Steps for measuring light transmittance using reflected light

[0049] S130: Steps in diagnosing pressure ulcers DETAILED DESCRIPTION

[0050] Hereinafter, preferred embodiments are described in detail with reference to the accompanying drawings so that a person skilled in the art can easily implement the present invention. However, in the process of describing the preferred embodiments of the present invention in detail, if it is determined that the specific description of the relevant known functions or structures makes the subject matter of the present invention unclear, the detailed description thereof will be omitted. Moreover, in the entire drawings, parts having similar functions and effects are given the same reference numerals.

[0051] In addition, throughout the specification, when a part is "connected" to other parts, this includes the case of "direct connection" and the case of "indirect connection" with other devices in between. And, unless there is a special description to the contrary, "comprising" a structural element means that other structural elements may also be included, rather than excluding other structural elements.

[0052] Figure 2 FIG. 1 is a diagram showing the structure of a pressure sore diagnosis system based on depth data using a multi-spectral light source according to an embodiment of the present invention in terms of functional blocks. Figure 3This is a diagram showing the structure of a light irradiation unit of a pressure sore diagnosis system based on depth data using a multi-spectral light source according to an embodiment of the present invention in the form of functional blocks. Figure 4 FIG. 1 is a diagram showing the structure of the light source unit of a pressure sore diagnosis system based on depth data using a multi-spectral light source according to an embodiment of the present invention in terms of functional blocks. Figures 2 to 4 As shown respectively, a pressure sore diagnosis system 100 based on depth data using a multi-spectral light source according to an embodiment of the present invention may include: a light irradiation unit 110, irradiating light to the skin of a body part to diagnose pressure sores; a measuring unit 120, measuring light transmittance by using the light irradiation unit 110 to irradiate light to the skin of a body part to diagnose pressure sores; and a pressure sore diagnosis unit 130, diagnosing the pressure sore state based on the light transmittance measured by the measuring unit 120. Hereinafter, with reference to the accompanying drawings, the specific structure of the pressure sore diagnosis system based on depth data using a multi-spectral light source according to an embodiment of the present invention will be described in detail.

[0053] Figure 5 This is a diagram showing a schematic structure of an example of a pressure sore diagnosis system based on depth data using a multi-spectral light source according to an embodiment of the present invention. Figure 6 The figure is a diagram showing the skin transmittance of each wavelength of the multi-spectrum of the pressure sore diagnosis system based on the depth data using the multi-spectrum light source according to one embodiment of the present invention.

[0054] The light irradiation unit 110 is a structure for irradiating light to the skin of a body part to diagnose a pressure sore. Such a light irradiation unit 110 can be composed of a multi-wavelength light source device, irradiating light to the skin of a body part to diagnose a pressure sore, and the wavelength can be selected according to the absorption wavelength characteristics of biological tissue. Among them, the light irradiation unit 110 is composed of a multi-wavelength light source device that selects wavelengths according to the absorption wavelength characteristics of biological tissue, and can irradiate light with a wavelength of 600 to 900nm. That is, the light irradiation unit 110 is a technology that uses optical principles related to the difference in transmittance of each wavelength to determine the stage of progress of a pressure sore, and it can irradiate a multi-spectrum light source to the same skin part to obtain skin characteristics.

[0055] And, if Figure 3 As shown, the light irradiation unit 110 may include: a light source unit 111, which irradiates a multi-spectrum light source of different wavelengths for diagnosing pressure sores to the same skin part; a main body 112, which is provided with the light source unit 111 irradiating the multi-spectrum light source of different wavelengths; and a control unit 113, which is provided in the main body 112 and controls the light irradiation of the light source unit 111 irradiating the multi-spectrum light source of different wavelengths. Such a light source unit 111 may be composed of a plurality of multi-spectrum light sources capable of irradiating a wider range of wavelengths of 600 to 900 nm.

[0056] The main body 112 is configured to have a plurality of multi-spectrum light sources of the light source unit 111 , and a hole is formed in the center of the plurality of multi-spectrum light sources so that the measuring unit 120 is provided to measure reflected light.

[0057] Furthermore, the control unit 113 is configured to control the light irradiation of the light source unit 111 that irradiates the multi-spectrum light source with different wavelengths, and can select and irradiate the multi-spectrum light source with a wavelength of 600 to 900 nm.

[0058] The measuring unit 120 is a structure that uses the light irradiation unit 110 to irradiate light to the skin of a body part to diagnose a pressure sore and measures the light transmittance by the reflected light reflected therefrom. This measuring unit 120 uses the light irradiation unit 110 to irradiate light to the skin of a body part to diagnose a pressure sore and measures the light transmittance by the reflected light reflected therefrom. The light transmittance can be composed of depth data of skin characteristics for each wavelength of the multi-spectral light source. That is, the measuring unit 120 measures the skin characteristics by the reflected light of the multi-spectral light source selected and irradiated in a wider wavelength range of 600 to 900 nm according to the absorption wavelength characteristics of biological substances, and can measure skin abnormalities caused by the occurrence of pressure sores through depth data.

[0059] Furthermore, the measuring unit 120 may be constituted by a depth camera that measures depth data of skin characteristics for each wavelength of the light irradiation unit 110 .

[0060] The pressure sore diagnosis unit 130 is a structure that diagnoses the state of the pressure sore based on the light transmittance measured by the measurement unit 120. This pressure sore diagnosis unit 130 diagnoses the state of the pressure sore based on the light transmittance measured by the measurement unit 120. By learning big data to obtain the light transmittance difference, the pressure sore can be diagnosed from the depth data of the state of each step of the pressure sore quantitatively analyzed. That is, the transmittance of photons changes with the distribution of moisture or fat in the skin. In the case of a pressure sore, it will cause skin necrosis. The moisture and fat density in the skin is different from that of general cells, thereby presenting a light transmittance different from that of normal cells. The state of each stage of the pressure sore can be quantitatively presented by learning big data of such light transmittance characteristics.

[0061] Furthermore, the pressure sore diagnosis unit 130 obtains light transmittance differences by learning big data, quantitatively analyzes the state of each stage of the pressure sore to diagnose the pressure sore, and can non-invasively diagnose the depth of the pressure sore. Based on this, compared with the existing pressure sore diagnosis method, the progress of the pressure sore can be accurately presented in three-dimensional visualization.

[0062] Figure 7 FIG. 1 is a flow chart showing a method for diagnosing pressure sores based on depth data using a multi-spectral light source according to an embodiment of the present invention. Figure 7As shown, a pressure sore diagnosis method based on depth data using a multi-spectral light source according to an embodiment of the present invention may include: step S110, the light irradiation unit 110 irradiates light to the skin of a body part to diagnose pressure sores; step S120, the measuring unit 120 utilizes the light irradiation unit 110 to irradiate light to the skin of a body part to diagnose pressure sores and measures light transmittance using reflected light reflected from the light irradiation unit 110; and step S130, the pressure sore diagnosis unit 130 diagnoses the pressure sore state based on the light transmittance measured by the measuring unit 120.

[0063] In step S110, the light irradiation unit 110 irradiates light onto the skin of a body part to diagnose a pressure sore. The light irradiation unit 110 in such step S110 is composed of a multi-wavelength light source device, and irradiates light onto the skin of a body part to diagnose a pressure sore, and the wavelength can be selected according to the absorption wavelength characteristics of biological tissue. Among them, the light irradiation unit 110 is composed of a multi-wavelength light source device that can select a wavelength according to the absorption wavelength characteristics of biological tissue, and irradiates light with a wavelength of 600 to 900nm. That is, the light irradiation unit 110 is a technology that uses an optical principle related to the difference in transmittance of each wavelength to determine the stage of progression of a pressure sore, and it can irradiate a multi-spectrum light source onto the same skin part to obtain skin characteristics.

[0064] And, if Figure 3 As shown, the light irradiation unit 110 includes: a light source unit 111, which irradiates a multi-spectrum light source of different wavelengths for diagnosing pressure sores to the same skin part; a main body 112, which is provided with the above-mentioned light source unit 111 that irradiates the multi-spectrum light source of different wavelengths; and a control unit 113, which is provided in the main body 112 and controls the light irradiation of the light source unit 111 that irradiates the multi-spectrum light source of different wavelengths. Such a light source unit 111 can be composed of a plurality of multi-spectrum light sources that can irradiate a wider range of wavelengths of 600 to 900 nm. In addition, the main body 112 is a structure in which a plurality of multi-spectrum light sources of the light source unit 111 are provided, and a hole is formed in a manner in which a measuring unit 120 is provided at the central part where the plurality of multi-spectrum light sources are provided, and the reflected light can be measured by the measuring unit 120. In addition, the control unit 113 is a structure for controlling the light irradiation of the light source unit 111 that irradiates the multi-spectrum light source of different wavelengths, and a multi-spectrum light source with a wavelength of 600 to 900 nm can be selected and irradiated.

[0065] In step S120, the measuring unit 120 uses the light irradiation unit 110 to irradiate light to the skin of the body part to diagnose the pressure sore and measures the light transmittance by the reflected light reflected therefrom. In such step S120, the measuring unit 120 uses the light irradiation unit 110 to irradiate light to the skin of the body part to diagnose the pressure sore and measures the light transmittance by the reflected light reflected therefrom. The light transmittance may be composed of depth data of skin characteristics for each wavelength of the multi-spectral light source. Among them, the measuring unit 120 measures the skin characteristics by reflecting light of the multi-spectral light source selected and irradiated according to the absorption wavelength characteristics of the biological tissue within a wider range of wavelengths of 600 to 900 nm, and can measure skin abnormalities caused by the occurrence of pressure sores through the depth data. In this case, the measuring unit 120 may be composed of a depth camera that measures the depth data of skin characteristics for each wavelength of the light irradiation unit 110.

[0066] In step S130, the pressure sore diagnosis unit 130 diagnoses the pressure sore state based on the light transmittance measured by the measuring unit 120. The pressure sore diagnosis unit 130 in this step S130 diagnoses the pressure sore state based on the light transmittance measured by the measuring unit 120, obtains the light transmittance difference by learning big data, and diagnoses the pressure sore from the depth data of the state of each stage of the pressure sore quantitatively analyzed. That is, the transmittance of photons changes with the distribution of moisture or fat in the skin, and in the case of pressure sores, it will cause skin necrosis. The moisture and fat density in the skin is different from that of general cells, thereby presenting a light transmittance different from that of normal cells. By learning and utilizing big data of such light transmittance characteristics, the state of each stage of the pressure sore can be quantitatively presented. Among them, the pressure sore diagnosis unit 130 obtains the light transmittance difference by learning big data, quantitatively analyzes the state of each step of the pressure sore to diagnose the pressure sore, and non-invasively diagnoses the development depth of the pressure sore. Therefore, compared with the existing pressure sore diagnosis method, the progress of the pressure sore can be accurately presented in three dimensions.

[0067] As described above, in the pressure sore diagnosis system and method based on depth data utilizing a multi-spectral light source, when light penetrates the skin, an optical principle in which each wavelength has different characteristics is used to detect skin abnormalities caused by pressure sores, and a multi-spectral light source is irradiated onto the same skin site to obtain skin characteristics. Skin abnormalities caused by pressure sores can be detected, and a wavelength can be selected within a wide wavelength range of 600 to 900 nm based on the absorption wavelength characteristics of biological tissues, thereby enabling a wider range of biological analysis and obtaining more accurate data.

[0068] As described above, in a pressure sore diagnosis system and method based on depth data using a multi-spectral light source according to an embodiment of the present invention, the pressure sore diagnosis system based on depth data using a multi-spectral light source includes: a light irradiation unit, which irradiates light to the skin of a body part to diagnose pressure sores; a measuring unit, which uses the light irradiation unit to irradiate light to the skin of a body part to diagnose pressure sores and measures light transmittance from the reflected light; and a pressure sore diagnosis unit, which diagnoses the pressure sore state based on the light transmittance measured by the measuring unit. The optical principle of the difference in skin transmittance of each wavelength of the multi-spectral light source can be used to detect skin abnormalities caused by the occurrence of pressure sores. In particular, each wavelength of the multi-spectral light source can be used. Skin abnormalities caused by pressure sores are detected by the optical principle of skin transmittance differences. Therefore, when light penetrates the skin, based on the optical principle that each wavelength has different characteristics, the light transmittance differences are obtained by learning big data, and the status of each stage of pressure sores is quantitatively analyzed and pressure sores are diagnosed. The development depth of pressure sores can be non-invasively diagnosed, and standardized depth data related to pressure sore grading can be used to diagnose pressure sores. The above-mentioned light transmittance differences are obtained by the optical principle of skin transmittance differences at each wavelength of a multi-spectral light source, and the progress of pressure sores can be presented in three dimensions. Based on this, the misdiagnosis rate of pressure sore diagnosis is reduced, and the accuracy of pressure sore diagnosis can be further improved.

[0069] The present invention described above can be modified and applied in various ways by ordinary technicians in the technical field to which the present invention belongs. The scope of the technical concept of the present invention can be determined by the following invention protection scope.

Claims

1. A pressure sore diagnosis system (100) based on depth data using a multi-spectral light source, characterized in that: include: A light irradiation unit (110) irradiates light to the skin of a body part to diagnose a pressure sore; A measuring unit (120), wherein the light irradiation unit (110) irradiates light onto the skin of a body part to diagnose a pressure sore, and then measures light transmittance using the reflected light; and The pressure sore diagnosis unit (130) diagnoses the pressure sore state based on the light transmittance measured by the measurement unit (120).

2. The pressure sore diagnosis system based on depth data using a multi-spectral light source according to claim 1, characterized in that: The light irradiation unit (110) is composed of a multi-wavelength light source device, which irradiates light to the skin of a body part to diagnose pressure sores, and can select wavelengths according to the absorption wavelength characteristics of biological tissues.

3. The pressure sore diagnosis system based on depth data using a multi-spectral light source according to claim 2, characterized in that: The light irradiation unit (110) is composed of a multi-wavelength light source device capable of selecting a wavelength according to the absorption wavelength characteristics of biological tissue, and irradiates light with a wavelength of 600nm to 900nm.

4. The pressure sore diagnosis system based on depth data using a multi-spectral light source according to any one of claims 1 to 3, characterized in that: The light irradiation unit (110) comprises: A light source unit (111) irradiates a multi-spectrum light source with different wavelengths for diagnosing pressure sores to the same skin part; The main body (112) is provided with the light source part (111) for irradiating a multi-spectrum light source with different wavelengths; and The control unit (113) is arranged on the main body (112) and controls the light irradiation of the light source unit (111) that irradiates the multi-spectrum light source with different wavelengths.

5. The pressure sore diagnosis system based on depth data using a multi-spectral light source according to claim 4, characterized in that: After the light irradiation unit (110) irradiates light onto the skin of a body part to diagnose pressure sores, the measuring unit (120) uses the reflected light to measure the light transmittance, which is composed of depth data of skin characteristics for each wavelength of the multi-spectral light source.

6. The pressure sore diagnosis system based on depth data using a multi-spectral light source according to claim 5, characterized in that: The measuring unit (120) is composed of a depth camera that measures depth data of skin characteristics for each wavelength of the multi-spectral light source of the light irradiation unit (110).

7. The pressure sore diagnosis system based on depth data using a multi-spectral light source according to claim 5, characterized in that: The pressure sore diagnosis unit (130) diagnoses the pressure sore state based on the light transmittance measured by the measurement unit (120), obtains the light transmittance difference by learning big data, and diagnoses the pressure sore from the depth data of the state of each stage of the pressure sore by quantitatively analyzing it.

8. The pressure sore diagnosis system based on depth data using a multi-spectral light source according to claim 7, characterized in that: The pressure sore diagnosis unit (130) obtains light transmittance differences by learning big data, quantitatively analyzes the state of each stage of the pressure sore to diagnose the pressure sore, and non-invasively diagnoses the development depth of the pressure sore.

9. A method for diagnosing pressure sores based on depth data using a multi-spectral light source, characterized in that: include: Step (1), a light irradiation unit (110) irradiates light onto the skin of a body part to diagnose a pressure sore; Step (2), after the light irradiation unit (110) irradiates light onto the skin of a body part to diagnose a pressure sore, the measurement unit (120) uses the reflected light to measure the light transmittance; and In step (3), the pressure sore diagnosis unit (130) diagnoses the pressure sore state based on the light transmittance measured by the measurement unit (120).

10. The method for diagnosing pressure sores based on depth data using a multi-spectral light source according to claim 9, characterized in that: The light irradiation unit (110) is composed of a multi-wavelength light source device, which irradiates light to the skin of a body part to diagnose pressure sores, and can select wavelengths according to the absorption wavelength characteristics of biological tissues.

11. The method for diagnosing pressure sores based on depth data using a multi-spectral light source according to claim 10, characterized in that: The light irradiation unit (110) is composed of a multi-wavelength light source device capable of selecting a wavelength according to the absorption wavelength characteristics of biological tissue, and irradiates light with a wavelength of 600nm to 900nm.

12. The method for diagnosing pressure sores based on depth data using a multi-spectral light source according to any one of claims 9 to 11, characterized in that: The light irradiation unit (110) comprises: A light source unit (111) irradiates a multi-spectrum light source with different wavelengths for diagnosing pressure sores to the same skin part; The main body (112) is provided with the light source part (111) for irradiating a multi-spectrum light source with different wavelengths; and The control unit (113) is arranged on the main body (112) and controls the light irradiation of the light source unit (111) that irradiates the multi-spectrum light source with different wavelengths.

13. The method for diagnosing pressure sores based on depth data using a multi-spectral light source according to claim 12, characterized in that: After the light irradiation unit (110) irradiates light onto the skin of a body part to diagnose pressure sores, the measuring unit (120) uses the reflected light to measure the light transmittance, which is composed of depth data of skin characteristics for each wavelength of the multi-spectral light source.

14. The method for diagnosing pressure sores based on depth data using a multi-spectral light source according to claim 13, characterized in that: The measuring unit (120) is composed of a depth camera that measures depth data of skin characteristics for each wavelength of the multi-spectral light source of the light irradiation unit (110).

15. The method for diagnosing pressure sores based on depth data using a multi-spectral light source according to claim 13, characterized in that: The pressure sore diagnosis unit (130) diagnoses the pressure sore state based on the light transmittance measured by the measurement unit (120), obtains the light transmittance difference by learning big data, and diagnoses the pressure sore from the depth data of the state of each stage of the pressure sore by quantitatively analyzing it.

16. The method for diagnosing pressure sores based on depth data using a multi-spectral light source according to claim 15, characterized in that: The pressure sore diagnosis unit (130) obtains light transmittance differences by learning big data, quantitatively analyzes the state of each stage of the pressure sore to diagnose the pressure sore, and non-invasively diagnoses the development depth of the pressure sore.

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