Positioning device of handheld skin detection instrument

Abstract

The invention belongs to the technical field of skin detection, and discloses a positioning device of a handheld skin detection instrument. Comprising positioning pieces on the two sides of the head, a jaw fixing seat, a precision sensor structure, a head adjustable fixing device used for fixing the positioning pieces on the two sides of the head and the jaw fixing seat, and an adjustable universal connecting support used for connecting the head adjustable fixing device and the precision sensor structure. The head-adjustable fixing device for fixing the positioning pieces on the two sides of the head and the jaw fixing seat is arranged, and the two sides of the outer wall of the head fixing seat and the two sides of the outer wall of the threaded movable plate are each integrally connected with two sets of convex hole bodies, so that the head fixing seat can be fastened through fixing of a threaded shaft rod; the head of a detected person is placed between the positioning pieces on the two sides of the head, the jaw of the detected person is placed on the jaw fixing base, and therefore the effect of fixing the head of the detected person is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of skin detection, and relates to a skin detection device, and in particular to a positioning device of a handheld skin detection instrument. Background Art

[0002] There are still some problems with the handheld skin detection instruments currently in use. For example, it is difficult to control the subject's head in a fixed position during the test. Due to obvious individual differences and the high precision of handheld skin detection instruments, different head placement positions and angles can directly affect the facial skin condition, resulting in inaccurate results. When using a handheld skin detection instrument for testing, the operator cannot accurately fix the skin to be tested. Handheld skin detection instruments generally detect local skin conditions. If the position to be tested cannot be fixed, the test results will be biased. When the same position needs to be tested multiple times at different times, the possible deviation will be even greater. In addition, the microscopic distance between the instrument and the skin cannot be accurately controlled. The operator cannot control the hand to remain completely still. When contacting the skin, it cannot be accurately controlled to stick to the skin surface without shaking, which will reduce the accuracy of data collection and affect the test results.

[0003] To this end, we provide a positioning device for a handheld skin detection instrument to solve the problem of fixing the subject's head, the inability of the handheld skin detection instrument to accurately locate the skin to be tested, and the inability to accurately control the microscopic distance between the instrument and the skin. Summary of the invention

[0004] The object of the present invention is to provide a positioning device for a handheld skin detection instrument to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A positioning device for a handheld skin detection instrument, comprising positioning pieces on both sides of the head, a chin fixing seat, a precision sensor structure, an adjustable head fixing device for fixing the positioning pieces on both sides of the head and the chin fixing seat, and an adjustable universal connecting bracket for connecting the adjustable head fixing device and the precision sensor structure, wherein the positioning pieces on both sides of the head and the chin fixing seat are made of medical sterilized rubber material;

[0007] The adjustable head fixing device specifically includes the following structures: a base, which is a stable square base with a large area and anti-slip, so that the device is not easy to move when placed on a desktop; a head fixing seat, which is used to fix the positioning plates on both sides of the head and the chin fixing seat;

[0008] The adjustable universal connection bracket specifically includes the following structures: a fixing plate fixedly mounted on the back of the head fixing seat; and a fixing long axis fixedly sleeved in a convex hole integrally formed in the fixing plate.

[0009] Preferably, an adjusting column is fixedly connected at the middle position of the top of the base, a fixed plug is fixedly installed on the top of the adjusting column, a rotating disk is arranged above the fixed plug, the rotating disk is fixedly connected with connecting sub-frames at equal intervals around the circumference, and a threaded shaft is fixedly connected through the connecting sub-frame, the bottom end of the threaded shaft passes through the fixed plug and extends to the interior of the adjusting column, and is rotatably connected to the bottom of the inner wall of the adjusting column through a bearing.

[0010] Preferably, four groups of limiting grooves are equidistantly formed on the circumference of the outer wall of the adjusting cylinder, and two opposite limiting grooves are internally provided with threaded movable plates in contact therewith, and the threaded movable plates are threadedly sleeved on the outer wall of the threaded shaft.

[0011] Preferably, two groups of convex holes are integrally connected on both sides of the outer walls of the head fixing seat and the threaded movable plate, and a threaded shaft is arranged between the convex holes on the head fixing seat and the threaded movable plate, and nuts are threadedly connected at both ends of the threaded shaft for adjusting the distance between the fixed head fixing seat and the threaded movable plate.

[0012] Preferably, an adjustment handle is provided below the head fixing seat, and an adjustment screw is fixedly connected to the top of the adjustment handle. The top thread of the adjustment screw passes through the bottom of the head fixing seat and extends upward to be fixedly connected to the chin fixing seat.

[0013] Preferably, two groups of snap-fit ​​groove plates are fixedly mounted on the top of the head fixing seat, and the snap-fit ​​groove plates are built-in and snap-fitted with the positioning plates on both sides of the head in a snap-fit ​​manner.

[0014] Preferably, the fixed long axis is connected to a flexible and deformable fixed support arm through an adjustable knob structure, the other end of the flexible and deformable fixed support arm is movably connected to a curved arm through a first universal joint, and the other end of the curved arm is movably connected to a connecting arm through a second universal joint.

[0015] Preferably, the adjustable knob structure specifically includes a rotating knob seat and a tightening thread device. The rotating knob seat is rotatably connected to the shaft wall of the fixed long shaft, a raised plate is fixedly installed on the top of the rotating knob seat, and stop blocks are relatively movably provided on both sides of the rotating knob seat, and the stop blocks are fastened to the shaft wall of the fixed long shaft through the tightening thread device.

[0016] Preferably, one end of the connecting arm is integrally connected with two groups of hole-type page bodies, the hole-type page bodies are connected to universal joint 2, and the other end of the connecting arm is integrally connected with an ear seat, and adjustable ultra-thin patch devices are movably provided on both sides of the ear seat.

[0017] Preferably, the adjustable ultra-thin patch device specifically includes an adjustment slot seat 1, an adjustment slot seat 2, and a block. The adjustment slot seat 1 is movably connected to the ear seat. The adjustment slot seat 1 is movably connected to the adjustment slot seat 2 through the block. The end face of the adjustment slot seat 2 is arranged with a precision sensor structure, wherein the precision sensor structure specifically includes an ultra-thin patch for a precision sensor, which is a patch with the same type of sensors on both sides, and a reserved detection instrument placement position is arranged in the middle portion of the ultra-thin patch for the precision sensor.

[0018] The present invention adopts the above technical solution, and has the following technical effects compared with the prior art:

[0019] (1) The present invention provides an adjustable head fixing device for fixing the positioning plates on both sides of the head and the chin fixing seat. Since the outer walls of the head fixing seat and the threaded movable plate are integrally connected with two groups of convex hole bodies on both sides, the head fixing seat can be tightened by fixing the threaded shaft rod. The person being tested places the head between the positioning plates on both sides of the head and the chin on the chin fixing seat, thereby achieving the effect of fixing the head.

[0020] (2) The present invention controls the angle of placement of the precision sensor structure by setting an adjustable ultra-thin patch, wherein the precision sensor structure specifically includes an ultra-thin patch with a precision sensor, and the ultra-thin patch is a patch with the same type of sensors on both sides. A reserved detection instrument placement position is set at the middle part of the ultra-thin patch for the precision sensor for the purpose of installing a skin detection instrument. When the precision sensor structure touches the skin surface, the sensing element can sense the skin and convert the measured physical quantity into a readable electrical signal, which is transmitted to the skin detection instrument. At this time, the reserved detection instrument placement position is used to place a handheld skin detection instrument. Through sensor signal comparison, subtle adjustments can be made, such as position, direction and distance, so that the precision sensor can better connect the skin and the skin detection instrument, thereby improving the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional diagram of the overall structure of a positioning device of a handheld skin detection instrument of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the head adjustable fixing device in the positioning device of a handheld skin detection instrument of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of an adjustable universal connection bracket in a positioning device of a handheld skin detection instrument of the present invention;

[0024] Figure 4For the present invention Figure 3 A schematic diagram of a partially enlarged structure of part A in a positioning device of a handheld skin detection instrument is shown;

[0025] In the figure: 111 positioning pieces on both sides of the head, 112 a chin fixing seat, 113 an ultra-thin patch for a precision sensor, 114 a reserved position for placing a detection instrument, 115 a buckle slot plate, 2 an adjustable head fixing device, 3 an adjustable universal connection bracket, 211 a base, 212 an adjustment cylinder, 213 a fixing plug, 214 a rotating disk, 215 a connecting sub-frame, 216 a threaded shaft, 217 a limiting groove, 218 a threaded movable plate, 219 a convex hole body, 221 a head fixing seat, 222 a threaded shaft rod, 223 a nut, 224 4 Adjustment handle, 225 adjustment screw, 311 fixed plate, 312 fixed long axis, 313 adjustable knob structure, 3131 rotating knob seat, 3132 raised plate, 3133 stop block, 3134 fastening thread device, 314 flexible and deformable fixed support arm, 315 universal joint 1, 316 curved arm, 317 universal joint 2, 318 connecting arm, 3181 hole type page body, 3182 ear seat, 319 adjustable ultra-thin patch device, 3191 adjustment slot seat 1, 3192 adjustment slot seat 2, 3193 block. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0028] Example 1

[0029] A preferred embodiment of a positioning device of a handheld skin detection instrument provided by the present invention is as follows: Figure 1-4 As shown: a positioning device of a handheld skin detection instrument, comprising positioning pieces 111 on both sides of the head, a chin fixing seat 112, a precision sensor structure, an adjustable head fixing device 2 for fixing the positioning pieces 111 on both sides of the head and the chin fixing seat 112, and an adjustable universal connecting bracket 3 for connecting the adjustable head fixing device 2 and the precision sensor structure, wherein the positioning pieces 111 on both sides of the head and the chin fixing seat 112 are made of medical sterilized rubber material;

[0030] The adjustable head fixing device 2 specifically includes the following structures: a base 211, which is a stable square base with a large area and is non-slip, so that the device is not easy to move when placed on a desktop; a head fixing seat 221, which is used to fix the positioning pieces 111 on both sides of the head and the chin fixing seat 112;

[0031] An adjusting cylinder 212 is fixedly connected at the middle position of the top of the base 211, a fixed plug 213 is fixedly installed on the top of the adjusting cylinder 212, a rotating disk 214 is arranged above the fixed plug 213, a connecting sub-frame 215 is fixedly connected to the rotating disk 214 at equal intervals on the circumference, and a threaded shaft 216 is fixedly connected through the connecting sub-frame 215, the bottom end of the threaded shaft 216 passes through the fixed plug 213 and extends to the inside of the adjusting cylinder 212, and is rotatably connected to the bottom of the inner wall of the adjusting cylinder 212 through a bearing;

[0032] Four groups of limit grooves 217 are equidistantly formed on the outer wall of the adjusting cylinder 212, and two opposite limit grooves 217 are provided with threaded movable plates 218, which are threadedly sleeved on the outer wall of the threaded shaft 216.

[0033] Two groups of convex holes 219 are integrally connected to both sides of the outer wall of the head fixing seat 221 and the threaded movable plate 218, and a threaded shaft 222 is arranged between the convex holes 219 on the head fixing seat 221 and the threaded movable plate 218. Both ends of the threaded shaft 222 are threadedly connected with nuts 223 for adjusting the distance between the head fixing seat 221 and the threaded movable plate 218;

[0034] An adjustment handle 224 is provided below the head fixing seat 221, and an adjustment screw 225 is fixedly connected to the top of the adjustment handle 224. The top thread of the adjustment screw 225 passes through the bottom of the head fixing seat 221 and extends to the top to be fixedly connected to the chin fixing seat 112.

[0035] Two sets of snap-fit ​​slot plates 115 are fixedly installed on the top of the head fixing seat 221, and the snap-fit ​​slot plates 115 are snap-fitted with the positioning plates 111 on both sides of the head in a snap-fit ​​manner;

[0036] In this specific embodiment, a head adjustable fixing device 2 is designed to adjust the positioning pieces 111 on both sides of the head and the chin fixing seat 112. The core part of the device is a precision mechanism that can be controlled by rotation operation. By operating the rotating disk 214, the threaded shaft 216 in the device can be driven. When the rotating disk 214 is rotated, the threaded shaft 216 rotates accordingly, and then through the interaction between the threads on it and the threaded movable plate 218, the threaded movable plate 218 can be lifted and lowered within the upper and lower limit ranges set by the limit slots 217.

[0037] Through this design, the positions of the positioning piece 111 and the chin fixing seat 112 can be accurately adjusted to meet the needs of different users, ensuring that the fixed position of the head in the device is both accurate and comfortable. In addition, this adjustable design greatly simplifies the installation process, allowing users to easily adjust the device without complicated settings. Such a structure not only improves the convenience of product use, but also enhances the user experience, making the product more competitive and attractive in the market. In general, the design of this adjustable head fixing device 2 not only meets functional requirements, but also takes into account the convenience of installation and use, reflecting the people-oriented design concept.

[0038] In this embodiment, a head adjustable fixing device 2 is designed to stabilize the positioning pieces 111 on both sides of the head and the chin fixing seat 112. The ingenious design of the device is that the outer walls of the head fixing seat 221 and the threaded movable plate 218 are connected with two groups of convex hole bodies 219 through an integrated design. This unique structure enables the head fixing seat 221 to be effectively tightened through the fixing effect of the threaded shaft 222 to ensure its stability and reliability. In actual use, the person being tested only needs to place the head between the positioning pieces 111 on both sides of the head and place the chin on the chin fixing seat 112, so that the stabilization effect of the person being tested can be easily achieved. Through this design, not only the accuracy of the detection can be improved, but also the comfort of the person being tested can be improved, making the entire detection process smoother and more efficient. In general, the design of this head adjustable fixing device 2 is both practical and user-friendly, and provides a new solution for head fixation.

[0039] In this specific embodiment, medical sterilized rubber material is specially selected to manufacture the positioning pieces 111 on both sides of the head and the chin fixing seat 112. The selection of this material is based on many considerations, the main reason being that it has good elasticity and clamping performance, which enables it to provide more stable and reliable support when fixing the head. The design of the positioning piece 111 and the chin fixing seat 112 not only needs to ensure the accurate position of the patient's head for treatment or examination, but also must take into account the comfort and safety during use. Due to the use of medical sterilized rubber material with moderate clamping elasticity, these components can adapt to the size and shape of different patients' heads while maintaining tight fixation, thereby greatly improving the adaptability and convenience during use. In addition, this material is also easy to clean and disinfect, which is conducive to maintaining the hygiene of the equipment, reducing the risk of infection, and ensuring the safety and effectiveness of the medical process.

[0040] Example 2

[0041] See also Figure 1-Figure 4, and on the basis of Example 1, it is further obtained that the adjustable universal connection bracket 3 specifically includes the following structures: a fixing plate 311, fixedly mounted on the back of the head fixing seat 221; a fixing long axis 312, fixedly sleeved in a convex hole integrally formed in the fixing plate 311;

[0042] The fixed long axis 312 is connected to a flexible and deformable fixed bracket 314 through an adjustable knob structure 313, the other end of the flexible and deformable fixed bracket 314 is movably connected to a curved arm 316 through a universal joint 1 315, and the other end of the curved arm 316 is movably connected to a connecting arm 318 through a universal joint 2 317;

[0043] The adjustable knob structure 313 specifically includes a rotating knob seat 3131 and a screw tightening device 3134. The rotating knob seat 3131 is rotatably connected to the shaft wall of the fixed long shaft 312. A protruding plate 3132 is fixedly installed on the top of the rotating knob seat 3131. Stop blocks 3133 are relatively movable on both sides of the rotating knob seat 3131. The stop blocks 3133 are fastened to the shaft wall of the fixed long shaft 312 through the screw tightening device 3134.

[0044] One end of the connecting arm 318 is integrally connected with two sets of hole-type leaf bodies 3181, and the hole-type leaf bodies 3181 are connected to the universal joint 2 317. The other end of the connecting arm 318 is integrally connected with an ear seat 3182, and both sides of the ear seat 3182 are movably provided with adjustable ultra-thin patch devices 319;

[0045] The adjustable ultra-thin patch device 319 specifically includes an adjusting slot seat 1 3191, an adjusting slot seat 2 3192, and a block 3193. The adjusting slot seat 1 3191 is movably connected to the ear seat 3182. The adjusting slot seat 1 3191 is movably connected to the adjusting slot seat 2 3192 through the block 3193. The end face of the adjusting slot seat 2 3192 is arranged with a precision sensor structure, wherein the precision sensor structure specifically includes an ultra-thin patch 113 for a precision sensor, which is a patch with the same type of sensors on both sides, and a reserved detection instrument placement position 114 is arranged in the middle portion of the ultra-thin patch 113 for the precision sensor.

[0046] In this embodiment, an adjustable universal connection bracket 3 is cleverly provided, and the bracket has a unique and clever design, especially the adjustable knob structure 313, which is equipped with a tightening screw 3134. The user can adjust the tightness between the stop block 3133 and the fixed long axis 312 by rotating the knob. This design allows the position of the flexible and deformable fixed bracket 314 to be flexibly adjusted to adapt to different usage scenarios and needs.

[0047] Furthermore, by carefully designing the flexible and easily deformable fixed bracket 314, the bracket adopts a special material that can restore to its original shape after deformation and can be fixed in the changed shape, so that the fixed bracket 314 can be twisted in any direction and angle to meet various complex use environments. This design not only improves the flexibility and adaptability of the product, but also increases the practicality and wide application range of the product.

[0048] In this embodiment, an adjustable ultra-thin patch device 319 is provided to control the angle at which the precision sensor structure is placed, wherein the precision sensor structure specifically includes an ultra-thin patch 113 with a precision sensor, the ultra-thin patch is a patch with the same type of sensor on both sides, and a reserved detection instrument placement position 114 is provided at the middle portion of the ultra-thin patch 113 with the precision sensor for the purpose of installing a skin detection instrument. Due to the different principles of skin detection instruments, when using the fixing device, it can be realized by replacing different sensors, including ultrasonic sensors, precision pressure sensors, temperature sensors, and photoelectric proximity sensors. Secondly, since there are extremely rich types of sensors on the market, and the precision of some of them is not high enough, a secondary judgment method can be used to ensure that the precision is high enough, that is, a second different skin contact recognition sensor is added, such as a built-in accelerometer or pressure gauge, and corresponding changes can be made to the ultra-thin patch 113 with a precision sensor.

[0049] During use, when the precision sensor structure touches the skin surface, the sensing element can sense the skin and convert the measured physical quantity into a readable electrical signal, which is then transmitted to the skin detection instrument. At this time, a detection instrument placement position 114 is reserved for placing a handheld skin detection instrument. Through sensor signal comparison, subtle adjustments can be made, such as position, direction, and distance, so that the precision sensor can better connect the skin and the skin detection instrument. The precision sensor structure can select different sensors according to the different test functions of the handheld detection instrument, including ultrasonic sensors, infrared sensors, or precision pressure sensors, to improve the accuracy of detection.

[0050] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0051] Secondly, in the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0052] Finally, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A positioning device for a handheld skin detection instrument, characterized in that: The device comprises positioning pieces (111) on both sides of the head, a chin fixing seat (112), a precision sensor structure, an adjustable head fixing device (2) and an adjustable universal connection bracket (3), wherein the positioning pieces (111) on both sides of the head and the chin fixing seat (112) are all made of medical sterilized rubber material; wherein: The adjustable head fixing device (2) comprises a base (211) and a head fixing seat (221); the base (211) is a stable square base; the head fixing seat (221) is used to fix the positioning plates (111) on both sides of the head and the chin fixing seat (112); The adjustable universal connection bracket (3) comprises a fixing plate (311) and a fixing long axis (312); the fixing plate (311) is fixedly mounted on the back of the head fixing seat (221); and the fixing long axis (312) is fixedly sleeved in a convex hole integrally formed on the fixing plate (311).

2. The positioning device of the handheld skin detection instrument according to claim 1, characterized in that: An adjusting cylinder (212) is fixedly connected at the middle position of the top of the base (211), a fixed plug (213) is fixedly installed on the top of the adjusting cylinder (212), a rotating disk (214) is arranged above the fixed plug (213), the rotating disk (214) is fixedly connected to a connecting sub-frame (215) at equal intervals on the circumference, and a threaded shaft (216) is fixedly connected through the connecting sub-frame (215), the bottom end of the threaded shaft (216) passes through the fixed plug (213) and extends to the inside of the adjusting cylinder (212), and is rotatably connected to the bottom of the inner wall of the adjusting cylinder (212) through a bearing.

3. The positioning device of the handheld skin detection instrument according to claim 2, characterized in that: Four groups of limiting grooves (217) are equidistantly provided on the circumference of the outer wall of the adjusting cylinder (212), and two opposite limiting grooves (217) are internally provided with a threaded movable plate (218) in contact therewith, and the threaded movable plate (218) is threadedly sleeved on the outer wall of the threaded shaft (216).

4. The positioning device of the handheld skin detection instrument according to claim 1, characterized in that: Two groups of convex hole bodies (219) are integrally connected to both sides of the outer walls of the head fixing seat (221) and the threaded movable plate (218), and a threaded shaft rod (222) is arranged between the convex hole bodies (219) on the head fixing seat (221) and the threaded movable plate (218), and nuts (223) are threadedly connected at both ends of the threaded shaft rod (222) for adjusting the distance between the head fixing seat (221) and the threaded movable plate (218).

5. The positioning device of the handheld skin detection instrument according to claim 1, characterized in that: An adjustment handle (224) is arranged below the head fixing seat (221), and an adjustment screw (225) is fixedly connected to the top of the adjustment handle (224). The top thread of the adjustment screw (225) passes through the bottom of the head fixing seat (221) and extends to the top to be fixedly connected to the chin fixing seat (112).

6. The positioning device of the handheld skin detection instrument according to claim 1, characterized in that: Two groups of snap-fit ​​groove plates (115) are fixedly mounted on the top of the head fixing seat (221), and the snap-fit ​​groove plates (115) are built-in and snap-fit ​​with the positioning plates (111) on both sides of the head.

7. The positioning device of the handheld skin detection instrument according to claim 1, characterized in that: The fixed long axis (312) is connected to a flexible and easily deformable fixed support arm (314) via an adjustable knob structure (313); the other end of the flexible and easily deformable fixed support arm (314) is movably connected to a curved arm (316) via a universal joint 1 (315); the other end of the curved arm (316) is movably connected to a connecting arm (318) via a universal joint 2 (317).

8. The positioning device of the handheld skin detection instrument according to claim 1, characterized in that: The adjustable knob structure (313) comprises a rotating knob seat (3131) and a tightening thread device (3134); the rotating knob seat (3131) is rotatably connected to the shaft wall of the fixed long shaft (312); a raised plate (3132) is fixedly installed on the top of the rotating knob seat (3131); stop blocks (3133) are relatively movably arranged on both sides of the rotating knob seat (3131), and the stop blocks (3133) are tightened to the shaft wall of the fixed long shaft (312) by means of the tightening thread device (3134).

9. The positioning device of the handheld skin detection instrument according to claim 7, characterized in that: One end of the connecting arm (318) is integrally connected with two groups of hole-type leaf bodies (3181), and the hole-type leaf bodies (3181) are connected to universal joint 2 (317). The other end of the connecting arm (318) is integrally connected with an ear seat (3182), and both sides of the ear seat (3182) are movably provided with adjustable ultra-thin patch devices (319).

10. The positioning device of the handheld skin detection instrument according to claim 9, characterized in that: The adjustable ultra-thin patch device (319) comprises an adjusting slot seat 1 (3191), an adjusting slot seat 2 (3192), and a block (3193); the adjusting slot seat 1 (3191) is movably connected to the ear seat (3182); the adjusting slot seat 1 (3191) is movably connected to the adjusting slot seat 2 (3192) via the block (3193); and the end surface of the adjusting slot seat 2 (3192) is arranged with a precision sensor structure.

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