Skin condition detector and skin condition testing system

Abstract

The application provides a wearable skin state detector and a skin state testing system, wherein the skin state detector comprises a positioning member, an imaging through hole and a mounting portion are arranged on the positioning member; a wearing member is connected to the positioning member; an imaging device is provided with a camera, the imaging device is mounted on the positioning member through the mounting portion and forms an imaging space with the positioning member, the camera photographs the skin in the imaging space through the imaging through hole, the skin state detector is small and portable, the operation mode is simple, the imaging quality can be guaranteed, the whole skin testing process is simplified, and the testing experience of testers is improved.

Description

Technical Field

[0001] This application relates to the field of medical testing technology, specifically to a skin condition detector and a skin condition testing system. Background Technology

[0002] With the development of modern medical testing technology, some diseases related to brain health can now be detected through skin tests. For example, skin tests using niacin reagents can determine a test subject's brain health level. The niacin skin test is based on the biological property of niacin, which induces a flushing reaction in the skin. When niacin or nicotinamide solution is applied to the skin, such as the inner side of the anterior wall, it causes local vasodilation and increased blood flow, leading to redness. This reaction is known as the niacin skin flushing reaction. Observing and analyzing this reaction can provide clues for the diagnosis and treatment of brain health problems such as schizophrenia.

[0003] In this type of skin testing, timely collection and analysis of skin condition after contact with the test reagent is crucial. Currently, test subjects typically need to go to a professional testing facility and use large and complex testing equipment to collect and analyze the skin condition after contact with the test reagent. This testing equipment usually requires operation by professionals.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] One aspect of the technical problem this application aims to solve is how to more conveniently perform skin condition detection.

[0006] In addition, other aspects of this application are also intended to solve or alleviate other technical problems existing in the prior art.

[0007] This application provides a skin condition detector and a skin condition testing system. Specifically, according to one aspect of this application, the following is provided:

[0008] A wearable skin condition detector, comprising:

[0009] A positioning element, which is provided with an imaging through hole and a mounting part;

[0010] A wearable component, which is connected to the positioning component;

[0011] An imaging device is provided, wherein a camera is provided in the imaging device, the imaging device is mounted on the positioning member by a mounting part and forms an imaging space with the positioning member, and the camera takes pictures of the skin through the imaging through hole in the imaging space.

[0012] Optionally, according to one embodiment of this application, the mounting portion is configured as an annular stepped portion surrounding the imaging through hole, the imaging device is provided with a recessed opening opposite to its mounting direction and an annular sidewall surrounding the recessed opening, the imaging device is mounted on the annular stepped portion through the annular sidewall, the camera is disposed on the end wall of the recessed opening, and magnets are uniformly disposed in one of the annular sidewall and the annular stepped portion, the annular sidewall and the annular stepped portion are connected by magnetic attraction.

[0013] Optionally, according to one embodiment of this application, at least one protrusion protruding toward the imaging device is provided on the annular stepped portion, and a recess matching the protrusion is provided on the annular sidewall.

[0014] Alternatively, a protrusion protruding toward the positioning member is provided on the annular sidewall, and a recess matching the protrusion is provided on the annular stepped portion.

[0015] Optionally, according to one embodiment of this application, at least one protrusion protruding toward the imaging device is provided on the annular stepped portion, and a recess matching the protrusion is provided on the annular sidewall. A retractable switch for turning the camera on or off is provided in one of the recesses, the switch having a closed state extending out of the recess and an open state retracted into the recess.

[0016] Optionally, according to one embodiment of this application, the positioning element includes, along the installation direction:

[0017] A fixing member for mounting the imaging device, wherein the mounting part is disposed on the fixing member;

[0018] A support member for supporting the skin of a test subject, the support member being fixedly connected to the fixing member, the support member including a first annular support wall and a second annular support wall surrounding the first annular support wall, the first annular support wall and the second annular support wall forming an annular space.

[0019] Optionally, according to one embodiment of this application, the imaging device includes a substrate and a detachable battery module, the battery module being snap-fitted to the substrate, a snap-fit ​​portion being provided on the battery module, a mating snap-fit ​​portion being provided on the substrate to match the snap-fit ​​portion, and magnets being provided at both the snap-fit ​​portion and the mating snap-fit ​​portion.

[0020] Optionally, according to one embodiment of this application, the imaging device further includes a timing device, the switch of which is disposed on the surface of the imaging device opposite to the positioning member, and the timing device is configured to issue a reminder message after a preset time threshold has elapsed after its switch is turned on.

[0021] Optionally, according to one embodiment of this application, a display screen or indicator light is provided on the imaging device to indicate the risk level of the detection results.

[0022] According to another aspect of this application, this application provides a skin condition testing system, comprising:

[0023] A test strip assembly, comprising a test strip on which a test reagent is loaded;

[0024] According to the skin condition detector described above, the skin condition detector is used to detect the skin's reaction state to the test reagent;

[0025] The processing device is communicatively connected to the skin condition detector, receives the imaging results from the skin condition detector, and determines the brain health level of the test subject based on the imaging results.

[0026] Optionally, according to another embodiment of this application, the processing device includes any one of the following: an embedded system built into the skin condition detector, a computer connected to the skin condition detector via a wireless network, and a cloud server connected to the skin condition detector via a wireless network.

[0027] The advantages of this application include: It provides a small, portable, wearable skin condition detector with reliable imaging capabilities. This detector can be easily worn by the tester on the skin after a skin reaction, greatly improving the convenience and flexibility of skin condition detection and reducing the burden on the tester. The skin condition detector adopts a detachable design, allowing the imaging device for photographing the skin to be detachably installed with the positioning component, forming an imaging space conducive to accurate imaging. This ensures the quality of the photographed skin, improves the accuracy of skin condition imaging, and facilitates subsequent skin condition analysis. Attached Figure Description

[0028] Referring to the accompanying drawings, the above and other features of this application will become apparent. It will be readily understood by those skilled in the art that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this application. Furthermore, similar numbers in the drawings are used to denote similar components, wherein...

[0029] Figure 1 An exploded view of a skin condition detector according to one embodiment of this application is shown;

[0030] Figure 2 A schematic diagram of the positioning component and the wearable component is shown;

[0031] Figure 3 A schematic diagram of the internal structure of the lower part of the imaging device is shown.

[0032] Figure 4 Showing a bottom view of the positioning component;

[0033] Figure 5 An exploded view of the imaging device is shown;

[0034] Figure 6 A schematic diagram of the internal structure of the upper part of the imaging device is shown;

[0035] Figure 7 A schematic diagram of the modules of a skin condition testing system according to one embodiment of this application is shown. Detailed Implementation

[0036] It is readily understood that, based on the technical solution of this application, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this application. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this application and should not be considered as the entirety of this application or as limitations or restrictions on the technical solution of this application.

[0037] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the structures shown in the accompanying drawings. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive. Furthermore, the terms "first," "second," "third," and similar expressions are used for descriptive and distinguishing purposes only and should not be construed as indicating or implying the relative importance of the corresponding components or the order of components or assembly sequence.

[0038] In skin tests used to detect diseases related to brain health, the test subject first applies a test reagent to peripheral skin, such as the skin of the hand. After the skin reacts with the reagent, causing a change in skin condition, a skin condition detection device collects and analyzes the data from the reaction area. These skin condition detection devices are typically complex, large-scale devices that are difficult for the test subject to operate independently.

[0039] This application provides a wearable skin condition detector, which can be worn by the tester on the reaction area of ​​the skin after the skin reacts with the test reagent, and accurately images the skin condition of the reaction area. This skin condition detector is small and portable, easy to operate, and can ensure high image quality, which helps to simplify the entire skin testing process and improve the tester's testing experience.

[0040] refer to Figure 1 This diagram shows an exploded view of a skin condition detector 100 according to one embodiment of this application. The skin condition detector 100 includes a positioning member 110, a wearable member 120, and an imaging device 130. The positioning member 110 is used to locate the skin's reaction area to the test reagent, and has an imaging through-hole 111 and a mounting portion 112. The wearable member 120 is connected to the positioning member 110, allowing the user to wear the skin condition detector 100 on their body. The imaging device 130 has a camera 131, such as a CCD or CMOS camera, used to photograph the skin reaction area after contact with the test reagent to obtain a skin condition image. The imaging device 130 is mounted on the positioning member 110 via the mounting portion 112 and forms an imaging space with the positioning member 110. The camera 131 photographs the skin through the imaging through-hole 111 within the imaging space. The positioning member 110 can precisely position the imaging device 130 relative to the skin reaction area. When the test subject wears the skin condition detector 100, the imaging through-hole 111 in the positioning member 110 is first aligned with the skin reaction area. Then, the imaging device 130 is mounted on the positioning member 110 via the mounting part 112. At this time, the camera 131 can just pass through the imaging through-hole 111 to capture images of the skin, so that the camera 131 can just capture, and preferably captures, only the skin reaction area. The imaging space formed between the imaging device 130 and the positioning member 110 ensures that the camera 131 and the skin reaction area can maintain a certain distance, which is beneficial for the camera 131 to adjust the focus and achieve clear imaging when taking pictures. On the other hand, it forms a sealed space between the imaging device 130, the positioning member 110, and the test subject's skin, avoiding interference from external light sources and other environmental factors on the skin reaction area.

[0041] Wearable component 120 may be configured as a watch strap, wristband, bandage, or clamp, etc., and may include two separate components respectively connected to positioning component 110, or may consist of only one integral component with both ends respectively connected to positioning component 110. It will be readily understood by those skilled in the art that wearable component 120 is not limited to the above forms, and may also include any wearable component that allows the skin condition detector 100 to be fixed to the tester's hand, leg, torso, or other parts to image the skin reaction area.

[0042] refer to Figure 2 The diagram shows a structural schematic of the positioning member 110 and the wearing member 120. In one embodiment of this application, the mounting portion 112 is configured as an annular stepped portion surrounding the imaging through-hole 111. Figure 1 and Figure 2 In this embodiment, the imaging device 130 is provided with a recess 132 that is recessed opposite to its mounting direction on the positioning member 110, and an annular sidewall 133 surrounding the recess 132. The imaging device 130 is mounted on the annular step portion through the annular sidewall 133, and the camera 131 is disposed on the end wall of the recess 132. With this structure, the imaging device 130 can penetrate into the positioning member 110 through the annular sidewall 133 and abut against the annular step portion of the positioning member 110. At the same time, the internal space of the recess 132 and the internal space of the imaging through hole 111 form the aforementioned imaging space. This provides a relatively large imaging space while ensuring stable installation of the imaging device 130 and the positioning member 110, thus maintaining the distance between the camera 131 and the skin and improving imaging accuracy.

[0043] In one embodiment of this application, the surface of the annular step portion is provided, for example, as an uneven surface, and in particular, a plurality of annular, spaced-apart ridges are provided on its surface to increase friction with the annular sidewall 133.

[0044] It should be understood that the term "ring" in this application is not limited to a circular ring, but should be broadly understood as a closed shape that surrounds another object, such as a variety of shapes similar to a ring, such as an ellipse, a quadrilateral with rounded corners, etc.

[0045] It should be understood that the installation section 112 is not limited to Figure 2 The form of the annular step portion can be configured as any structure that allows the imaging device 130 to be mounted on the positioning member 110.

[0046] In one embodiment of this application, a magnet 134 is uniformly disposed in one of the annular sidewall 133 and the annular step portion, and the annular sidewall 133 and the annular step portion are connected by magnetic attraction. When a magnet 134 is uniformly disposed in one of the annular sidewall 133 and the annular step portion, the other is, for example, made of metal. (Reference) Figure 3 It shows a schematic diagram of the internal structure of the lower part of the imaging device, which is a top view after the upper housing and components of the imaging device have been removed, showing the structure inside the annular sidewall 133. Figure 3 In this embodiment, magnets 134 are disposed in the annular sidewall 133 and are evenly arranged along the circumferential direction of the annular sidewall 133. It should be understood that magnets may also be disposed in both the annular sidewall 133 and the annular step portion. The magnetic connection between the imaging device 130 and the positioning member 110 simplifies the installation steps of both and facilitates the relative positioning of the annular sidewall 133 and the annular step portion.

[0047] In one embodiment of this application, at least one protrusion 113 protruding toward the imaging device 130 is provided on the annular stepped portion, and a recess 135 matching the protrusion 113 is provided on the annular sidewall 133. (See again) Figure 1 ,exist Figure 1 In this embodiment, two protrusions 113 are provided on the annular step portion, particularly two protrusions 113 that are spaced apart in the circumferential direction and arranged opposite to each other. Correspondingly, two recesses 135 are provided on the annular sidewall 133. When the annular sidewall 133 is placed on the annular step portion, the protrusions 113 engage with the recesses 135, so that the imaging device 130 cannot rotate in the positioning member 110, thus ensuring the relative fixation of the imaging device 130 and the positioning member 110. At the same time, it also makes it easier for the tester to install the imaging device 130 in the correct position on the positioning member 110.

[0048] It should be understood that the number of protrusions 113 or recesses 135 is not limited to... Figure 1 Of the two portions, those skilled in the art can provide one or more protrusions 113 or recesses 135 as needed. Furthermore, in embodiments not shown, the protrusions 113 may be provided on the annular sidewall 133, and the recesses 135 may be provided on the annular stepped portion.

[0049] Furthermore, in Figure 1In one embodiment, a retractable switch 136 for turning the camera 131 on or off is provided in a recess 135. The switch 136 has a closed state extending out of the recess 135 and an open state retracted into the recess 135. When the imaging device 130 is mounted on the positioning member 110, the recess 135 cooperates with the protrusion 113, the switch 136 is pushed up by the protrusion 113 and retracted into the recess 135, at which time the switch is in the open state, and the camera 131 is automatically turned on to start taking pictures; when the imaging device 130 is disengaged from the positioning member 110, the recess 135 disengages from the protrusion 113, the switch 136 is no longer obstructed by the protrusion 113 and extends out of the recess 135, at which time the switch 136 is in the closed state, and the camera 131 is automatically turned off. In this way, the camera 131 can be automatically turned on to take pictures when the user installs the imaging device 130 and the positioning component 110 into place, ensuring the shooting position of the camera 131, and eliminating the need for the user to manually turn on the camera 131 to take pictures.

[0050] It should be understood that the switch 136 is preferably mounted in the recess 135 by a spring, and extends and retracts elastically. Those skilled in the art may also configure the switch 136 in other extendable forms as needed, such as extending and retracting by gravity or a corresponding locking structure, which should also be included within the scope of protection of this application.

[0051] In one embodiment of this application, the positioning member 110 includes a fixing member 101 and a support member 102 along the installation direction. Figure 1 As can be seen, the fixing member 101 is mounted on the support member 102 for mounting the imaging device 130, and the mounting portion 112 is provided on the fixing member 101. The fixing member 101 is specifically configured as an annular structure surrounding the imaging through-hole 111, and the mounting portion 112, constructed as an annular stepped portion, is provided on the inner side of this annular structure. (See reference...) Figure 4 The image shows a bottom view of the positioning element 110. Figure 4The image shows a support member 102 for support onto the skin of a test subject. The support member 102 includes a first annular support wall 114 and a second annular support wall 115 surrounding the first annular support wall 114, forming an annular space 116 between the first and second annular support walls 114 and 115. Both the first and second annular support walls 114 and 115 are supported on the skin of the test subject, particularly surrounding the skin's reaction area. The first and second annular support walls 114 and 115 are made of a particularly elastic material, and when the support member 102 is supported on the skin, the annular space 116 between the first and second annular support walls 114 and 115 is insulated from the external atmosphere and has a certain degree of negative pressure. Especially when the tester actively presses the support 102, the gas in the annular space 116 flows out from between the annular support walls 114, 115 and the skin, and a negative pressure is formed in the annular space 116, which allows the support 102 to adhere to the user's skin like an annular suction cup, which is beneficial for fixing the positioning component 110 to the user's skin.

[0052] The first annular support wall 114 and the second annular support wall 115 are made of, for example, an elastic material, such as rubber or silicone. Further, the first annular support wall 114 and the second annular support wall 115 are made of, for example, a skin-friendly material—such as TPU, TPE, TPSiV, and Si-TPV. It should be understood that the materials of the first annular support wall 114 and the second annular support wall 115 are not limited to those listed above, and they can also be made of any other material that can provide support.

[0053] In one embodiment of this application, the imaging device 130 includes a substrate 103 and a removable battery module 104. (See reference...) Figure 5 This shows an exploded schematic diagram of the imaging device 130. Figure 5 In this embodiment, the battery module 104 is snapped into the base 103, and a snap-fit ​​part 137 is provided on the battery module 104, and a matching snap-fit ​​part 138 matching the snap-fit ​​part 137 is provided on the base 103. Figure 5 The snap-fit ​​portion 137 is, for example, annular, and is an annular protrusion on the battery module 104. The mating snap-fit ​​portion 138 is an annular recess on the base 103 that mates with the annular protrusion. The battery module 104 snaps into the base 103 by inserting the annular protrusion into the annular recess. It should be understood that the protrusion and recess can also be of other shapes, and the protrusion can also be on the base 103, while the recess is on the battery module 104. Of course, the connection method between the battery module 104 and the base 103 is not limited to snap-fit; other detachable connection methods can also be used. Figure 5In one embodiment, the battery module 104 is also plugged into the insertion portion of the base 103 via an electrical interface for electrical connection with the base 103. The electrical interface is located outside the snap-fit ​​portion 137. In an embodiment not shown, the electrical interface may be directly located on the snap-fit ​​portion 137.

[0054] refer to Figure 6 The diagram shows a schematic representation of the internal structure of the upper part of the imaging device 130, which is a top view of the imaging device 130 after the battery module 104 and the upper housing have been removed. In this embodiment, magnets are respectively provided at the snap-fit ​​portion 137 and the mating snap-fit ​​portion 138, and the magnet 105 of the mating snap-fit ​​portion 138 is as follows: Figure 6 As shown in the diagram, the battery module 104 is connected to the base 103 not only by snap-fit ​​but also by magnetic attraction. This magnetic attraction facilitates the pre-positioning between the snap-fit ​​portion 137 and the mating snap-fit ​​portion 138, and also allows the battery module 104 to be more securely attached to the base 103.

[0055] In one embodiment of this application, the imaging device 130 further includes a timing device (not shown in the figures). The switch 139 of the timing device is located on the surface of the imaging device 130 opposite to the positioning member 110, particularly next to the main power switch 106 of the imaging device 130. The timing device is configured to issue a reminder message after a preset time threshold has elapsed since the switch 139 is turned on. This timing device provides a timing function and is manually activated by the user. The user can use the timing device to determine the time since the skin came into contact with the test reagent, the time when the imaging device 130 started taking pictures, etc. The preset time threshold is, for example, 2 minutes, preferably 1 minute, and more preferably 30 seconds. The reminder message can be any form that can be perceived by the user through the imaging device 130, such as sound, light, image, or vibration.

[0056] In one embodiment of this application, an imaging device 130 is provided with a display screen or indicator light (not shown in the figure) to indicate the risk level of the detection result. In this embodiment, after the imaging device 130 takes a picture of the skin condition, it processes the image and obtains the detection result. The judgment of the risk level of the detection result is given to the user through the display screen or indicator light on the imaging device 130. For example, the user is prompted by information such as text, color, and pattern on the display screen, or by changes in the color, brightness, number of times it opens and closes, and opening and closing rhythm of the indicator light, so that the user can quickly and intuitively understand the detection result and improve the detection efficiency.

[0057] Another aspect of this application proposes a skin condition testing system 1. (Reference) Figure 7The diagram illustrates a block diagram of a skin condition testing system 1 according to an embodiment of this application. The skin condition testing system 1 includes:

[0058] The aforementioned skin condition detector 100 is used to detect the skin's reaction to test reagents;

[0059] Test strip assembly 200 includes a test strip on which a test reagent is loaded;

[0060] The processing device 300 is communicatively connected to the skin condition detector 100, receives the imaging results from the skin condition detector 100, and judges the brain health level of the test subject based on the imaging results.

[0061] In one embodiment of this application, the processing device 300 includes any one of the following: an embedded system built into the skin condition detector 100, a computer connected to the skin condition detector 100 via a wireless network, or a cloud server connected to the skin condition detector 100 via a wireless network. The processing device 300 can be integrated into the skin condition detector 100, or it can be a device connected to the skin condition detector 100 externally, or it can be a cloud server connected to its network. When the processing device 300 is integrated into the skin condition detector 100, the tester can obtain the test results themselves through the skin condition detector 100. When the processing device 300 is a device connected to the skin condition detector 100 externally, the test results can be remotely obtained and analyzed by an operator. When the processing device 300 is a cloud server connected to the skin condition detector 100 via a network, the analysis of the test results is performed in the cloud, and the tester and other personnel can obtain the test results from the cloud server through multiple devices.

[0062] In one embodiment of this application, the test strip assembly may be replaceable or disposable, thereby ensuring the accuracy and hygiene of each skin test.

[0063] In the context of this application, "testing reagent" is intended to mean a reagent that can come into contact with the skin to perform a skin test. For example, a testing reagent can be a reagent that can determine the brain health level of a test subject. In the context of this application, "brain health level" is intended to mean a health level that can be affected by the state of brain cells, such as a health level related to mental illnesses or neurological diseases. Mental illnesses may include mental illnesses affected by the state of brain cells, such as schizophrenia spectrum disorders and other psychotic disorders, bipolar disorder, depressive disorders, anxiety disorders, trauma and stress-related disorders, and neurodevelopmental disorders (including intellectual disability, autism spectrum disorder, attention deficit hyperactivity disorder, childhood communication disorders, specific learning disabilities, tic disorders, motor disorders, and other types of neurodevelopmental disorders). Neurological diseases may include neurological diseases affected by the state of brain cells, such as stroke, posterior circulation ischemia, Parkinson's disease, Parkinson's syndrome, dementia (including Alzheimer's disease, Lewy body dementia, Parkinson's dementia, frontotemporal degeneration, vascular dementia, and other types of dementia), and mild cognitive impairment. As an example, the test reagent may be an HCAR2 receptor activator or an HCAR3 receptor activator or an ester thereof, which enables skin testing by activating the HCAR2 or HCAR3 receptor. Further, the HCAR2 receptor activator or HCAR3 receptor activator or an ester thereof may be nicotinic acid or a derivative thereof, such as nicotinic acid reagent, methyl nicotinate reagent, ethyl nicotinate reagent, or combinations thereof.

[0064] In summary, the skin condition detector proposed according to one embodiment of this application provides a portable, wearable, convenient, and reliable skin condition detection solution. Test subjects can wear the skin condition detector after skin contact with the test reagent to image the skin condition in the skin reaction area, thereby monitoring their own brain health level without having to visit a specialized testing institution or use traditional testing equipment each time. This improves the efficiency of skin condition detection, enabling test subjects to promptly understand their condition and intervene in a timely manner. The skin condition detector proposed according to one embodiment of this application can also process skin condition images in different ways, facilitating access to the test results for other personnel, such as professional operators and caregivers.

[0065] It should be understood that all the above preferred embodiments are exemplary and not restrictive, and various modifications or variations made by those skilled in the art to the specific embodiments described above under the concept of this application should be within the scope of legal protection of this application.

Claims

1. A wearable skin condition detector, characterized in that, include: A positioning element, which is provided with an imaging through hole and a mounting part; A wearable component, which is connected to the positioning component; An imaging device is provided, wherein a camera is provided in the imaging device, the imaging device is mounted on the positioning member by a mounting part and forms an imaging space with the positioning member, and the camera takes pictures of the skin through the imaging through hole in the imaging space.

2. The skin condition detector according to claim 1, characterized in that, The mounting portion is configured as an annular stepped portion surrounding the imaging through hole. The imaging device is provided with a recessed opening opposite to its mounting direction and an annular sidewall surrounding the recessed opening. The imaging device is mounted on the annular stepped portion through the annular sidewall. The camera is disposed on the end wall of the recessed opening. Magnets are uniformly disposed in one of the annular sidewall and the annular stepped portion. The annular sidewall and the annular stepped portion are connected by magnetic attraction.

3. The skin condition detector according to claim 2, characterized in that, At least one protrusion protruding toward the imaging device is provided on the annular stepped portion, and a recess matching the protrusion is provided on the annular sidewall. Alternatively, a protrusion protruding toward the positioning member is provided on the annular sidewall, and a recess matching the protrusion is provided on the annular stepped portion.

4. The skin condition detector according to claim 2, characterized in that, At least one protrusion is provided on the annular stepped portion, protruding toward the imaging device. A recessed portion matching the protrusion is provided on the annular sidewall. A retractable switch for turning the camera on or off is provided in one of the recessed portions. The switch has a closed state extending out of the recessed portion and an open state retracted into the recessed portion.

5. The skin condition detector according to claim 2, characterized in that, The positioning element includes, along the installation direction: A fixing member for mounting the imaging device, wherein the mounting part is disposed on the fixing member; A support member for supporting the skin of a test subject, the support member being fixedly connected to the fixing member, the support member including a first annular support wall and a second annular support wall surrounding the first annular support wall, the first annular support wall and the second annular support wall forming an annular space.

6. The skin condition detector according to claim 1, characterized in that, The imaging device includes a base and a detachable battery module. The battery module is snapped into the base. A snap-fit ​​part is provided on the battery module. A matching snap-fit ​​part is provided on the base. Magnets are provided at both the snap-fit ​​part and the matching snap-fit ​​part.

7. The skin condition detector according to claim 1, characterized in that, The imaging device also includes a timing device. The switch of the timing device is disposed on the surface of the imaging device away from the positioning member. The timing device is configured to issue a reminder message after a preset time threshold has elapsed after its switch is turned on.

8. The skin condition detector according to claim 1, characterized in that, The imaging device is equipped with a display screen or indicator light to indicate the risk level of the detection results.

9. A skin condition testing system, characterized in that, include: A test strip assembly, comprising a test strip on which a test reagent is loaded; The skin condition detector according to any one of claims 1 to 8 is used to detect the skin's reaction state to the test reagent; The processing device is communicatively connected to the skin condition detector, receives the imaging results from the skin condition detector, and determines the brain health level of the test subject based on the imaging results.

10. The skin condition testing system according to claim 9, characterized in that, The processing device includes any one of the following: an embedded system built into the skin condition detector, a computer connected to the skin condition detector via a wireless network, or a cloud server connected to the skin condition detector via a wireless network.

Images