Split portable dermatoscope combined with wood's light device
By employing a split design and a precise angle adjustment and locking mechanism, the problems of cumbersome disassembly and assembly and inaccurate detection position of existing dermatoscopes and Wood's lamp devices have been solved, enabling rapid and accurate skin detection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- AFFILIATED HUSN HOSPITAL OF FUDAN UNIV
- Filing Date
- 2026-03-23
- Publication Date
- 2026-05-29
Smart Images

Figure CN122096718A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of medical device technology, specifically to a modular portable dermatoscope and Wood's lamp combination device. Background Technology
[0002] Dermatoscopes and Wood's lamps are commonly used tools in dermatology clinics for screening and diagnosing pigmented skin diseases, infectious skin diseases, and other conditions. Their applications cover hospital dermatology outpatient clinics, bedside testing for inpatients, mobile clinics in primary healthcare institutions, and outreach medical services. Medical staff often need to carry both devices to different testing locations, so there is a high demand for portability and operational efficiency of the devices.
[0003] Existing dermatoscope and Wood's lamp combination devices mostly adopt an integrated fixed structure, with the detection mechanism and support bracket fixed by bolts or clips. Disassembly and assembly require tools or cumbersome operating procedures, and the adjustment of the detection position mostly relies on the overall moving bracket, which cannot achieve precise horizontal fine adjustment of the detection mechanism. This not only makes the preparation process before detection cumbersome and the switching efficiency of detection mode low, but also easily affects the accuracy of the detection results due to inaccurate positioning, making it difficult to meet the needs of rapid and accurate detection in clinical practice. Summary of the Invention
[0004] The purpose of this invention is to provide a separate portable dermatoscope and Wood's lamp combination device.
[0005] The objective of this invention is achieved through the following technical solution: a split-type portable dermatoscope and Wood's lamp combination device, comprising a receiving plate, a U-shaped plate 1 rotatably connected to the receiving plate, a U-shaped plate 2 rotatably connected to the U-shaped plate 1, a U-shaped plate 3 rotatably connected to the U-shaped plate 2, a long plate rotatably connected to the U-shaped plate 3, a sliding sleeve fixedly connected to the outside of the long plate, a threaded sleeve slidably connected to the inside of the sliding sleeve, a fixed sleeve fixedly connected to the outside of the threaded sleeve, a limiting groove formed inside the fixed sleeve, an abutment rod slidably connected inside the limiting groove, a limiting rotating column rotatably connected inside the limiting groove, two snap-fit plates rotatably connected to the outside of the limiting rotating column, a square block fixedly connected to the outside of the snap-fit plates, springs 2 provided on the two snap-fit plates, and a detection mechanism slidably connected to the outside of the two snap-fit plates.
[0006] As a further description of the above technical solution: The receiving plate, U-shaped plate one, U-shaped plate two, U-shaped plate three and the long plate are respectively provided with two toothed rings inside. The toothed rings are provided with connecting sleeves. The connecting sleeves are engaged with teeth on the outside. The teeth are slidably connected to a limit sleeve. The limit sleeves are fixedly connected with two limit rods inside. The limit rods are sleeved with a spring. The bottom end of the limit sleeves is fixedly connected with a rotating rod. As a further description of the above technical solution: Multiple rotating rods are respectively fixedly connected to the outside of U-shaped plate one, U-shaped plate two, U-shaped plate three and long plate, and the outside of the rotating rods are rotatably connected to the inside of U-shaped plate one, U-shaped plate two, U-shaped plate three and long plate; As a further description of the above technical solution: The two ends of the second spring are respectively set at the adjacent ends of the two snap-fit plates, so that the snap-fit plates are reset after rotation; As a further description of the above technical solution: The threaded sleeve has an internal threaded connection to a threaded rod, the threaded rod has an external fixed connection to a rotating handle, and the internal threaded rod is rotatably connected to the inside of the long plate. As a further description of the above technical solution: The detection mechanism is in contact with the outside of the fixed sleeve, and the outside of the snap-fit plate is in contact with the inside of the limiting groove; As a further description of the above technical solution: The exterior of one square block contacts the bottom end of the abutment rod, and the exterior of the other square block contacts the interior of the limiting groove. A handle is fixedly connected to the exterior of the receiving plate. As a further description of the above technical solution: One end of the spring is fixedly connected to the inside of the limiting sleeve, and the other end of the spring is fixedly connected to the bottom end of the tooth. The inside of the tooth is slidably connected to the outside of the limiting rod.
[0007] Compared with the prior art, the advantages of the present invention are as follows: 1. Through the elastic engagement of the snap-fit plate and spring two, the detection mechanism and the fixed sleeve can be quickly disassembled and assembled. At the same time, the transmission between the threaded rod and the threaded sleeve drives the horizontal fine adjustment of the detection mechanism, realizing the rapid switching of detection mode and the precise positioning of the detection position. This simplifies the preparation process before detection and ensures that the detection mechanism is aligned with the area to be detected, thereby improving the efficiency and accuracy of skin detection.
[0008] 2. Through the meshing of the teeth and connecting sleeve, the rotating rod and each U-shaped plate and long plate are adjusted and locked under the elastic support of the spring. This achieves the beneficial effects of compact portability when the device is stored and stable support at multiple angles when unfolded. It is convenient for medical staff to carry to different testing scenarios and can flexibly adjust the testing height and angle according to testing needs, thus improving the device's scenario adaptability and ease of operation. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the main body of an embodiment of the split-type portable dermatoscope and Wood's lamp combination device of the present invention; Figure 2 This is a schematic diagram of the U-shaped plate three of the split-type portable dermatoscope and Wood's lamp combination device proposed in this invention; Figure 3 This is a schematic diagram of the threaded sleeve of a split-type portable dermatoscope and Wood's lamp combination device proposed in this invention; Figure 4 This is a schematic diagram of the toothed ring structure of a split-type portable dermatoscope and Wood's lamp combination device proposed in this invention; Figure 5 This is a schematic diagram of the abutment rod of a split-type portable dermatoscope and Wood's lamp combination device proposed in this invention.
[0010] Labeling Explanation: 1. Receiving Plate; 2. U-shaped Plate One; 3. U-shaped Plate Two; 4. U-shaped Plate Three; 5. Long Plate; 6. Rotating Rod; 7. Limiting Sleeve; 8. Limiting Rod; 9. Spring One; 10. Tooth; 11. Toothed Ring; 12. Connecting Sleeve; 13. Sliding Sleeve; 14. Rotating Handle; 15. Threaded Rod; 16. Threaded Sleeve; 17. Fixing Sleeve; 18. Limiting Groove; 19. Abutment Rod; 20. Limiting Rotating Column; 21. Snap-fit Plate; 22. Square Block; 23. Spring Two; 24. Detection Mechanism; 25. Handle. Detailed Implementation
[0011] The present invention will now be described in detail with reference to the accompanying drawings and embodiments: like Figure 1 and 5 The diagram shows an embodiment of a split-type portable dermatoscope and Wood's lamp combination device provided by the present invention. It includes a support plate 1, which serves as the basic load-bearing structure of the device, providing a stable support platform for the entire folding bracket and ensuring the structural stability of the device in both its stowed and unfolded states. A U-shaped plate 2 is rotatably connected to the support plate 1, serving as the primary hinge structure of the folding bracket and providing a basic hinge node for the angle adjustment of subsequent components, thus expanding the height adjustment range of the device. A U-shaped plate 3 is rotatably connected to the U-shaped plate 2, serving as the secondary hinge structure of the folding bracket, further extending the adjustable length of the bracket and enriching the angle combination methods of the device. A U-shaped plate 4 is rotatably connected to the U-shaped plate 3, serving as the tertiary hinge structure of the folding bracket, connecting the long plate 5 with the preceding hinge components, optimizing the force transmission path of the bracket, and improving the structural rigidity after unfolding. The long plate 5 is rotatably connected to the U-shaped plate 4, serving as the load-bearing and moving platform for the detection mechanism 24, providing an installation base for the horizontal fine-tuning of the detection mechanism 24, and ensuring the stability of the detection position adjustment.
[0012] The long plate 5 is externally fixedly connected to a sliding sleeve 13, which provides guidance and limit for the sliding of the threaded sleeve 16, ensuring that the threaded sleeve 16 moves smoothly along the length of the long plate 5 and ensuring the accuracy of the horizontal fine-tuning of the detection mechanism 24. The sliding sleeve 13 is internally slidably connected to a threaded sleeve 16, which converts the rotational motion of the threaded rod 15 into linear motion, driving the fixed sleeve 17 and the detection mechanism 24 to move horizontally, thereby achieving precise fine-tuning of the detection position. The threaded sleeve 16 is internally threadedly connected to a threaded rod 15, which drives the threaded sleeve 16 to move linearly by rotation, providing a power transmission basis for the horizontal position adjustment of the detection mechanism 24. The threaded rod 15 is externally fixedly connected to a rotating handle 14, which makes it easy for the operator to rotate the threaded rod 15, reducing the difficulty of operation and improving the convenience of the detection position adjustment.
[0013] The threaded rod 15 is internally rotatably connected to the inside of the long plate 5. The threaded sleeve 16 is externally fixedly connected to the fixed sleeve 17, providing a basic structure for the installation and snap-fit of the detection mechanism 24, ensuring the stable installation of the detection mechanism 24. The fixed sleeve 17 has a limit groove 18 inside, providing space for the installation and movement of the snap-fit plate 21 and the abutment rod 19, optimizing the layout of the snap-fit structure and improving space utilization. The limit groove 18 is internally slidably connected to the abutment rod 19, which is used to trigger the unlocking action of the snap-fit plate 21, simplifying the disassembly operation of the detection mechanism 24 and improving the maintenance convenience of the device. The limit groove 18 is internally rotatably connected to the limit rotating column 20, providing axial support for the rotation of the snap-fit plate 21, ensuring the smooth rotation of the snap-fit plate 21, and ensuring the reliability of the snap-fit and unlocking actions.
[0014] The limiting rotating column 20 has two external rotatable connecting plates 21, which engage with the inner wall of the detection mechanism 24 to achieve quick fixation of the detection mechanism 24 and simplify the installation process. The connecting plates 21 are externally fixedly connected with square blocks 22, increasing the contact area between the connecting plates 21 and the detection mechanism 24 and the abutment rod 19, improving the stability of the engagement and the reliability of the unlocking action. The outer side of one square block 22 contacts the bottom end of the abutment rod 19, and the outer side of the other square block 22 contacts the inside of the limiting groove 18. The receiving plate 1 is externally fixedly connected with a handle 25, facilitating the operator's grip and carrying of the device, improving its portability and making the device more convenient to use. Easily adaptable to different testing scenarios, the two snap-fit plates 21 are equipped with springs 23, which provide elastic restoring force to the snap-fit plates 21, allowing them to automatically reset and snap-fit after the testing mechanism 24 is installed, simplifying the installation operation. The two ends of the springs 23 are respectively set at the adjacent ends of the two snap-fit plates 21, so that the snap-fit plates 21 reset after rotation. The two snap-fit plates 21 are slidably connected to the outside of the testing mechanism 24, which integrates the testing functions of dermatoscope and Wood's lamp, realizing the rapid switching between two testing modes and improving the efficiency and accuracy of skin testing. The testing mechanism 24 is in contact with the outside of the fixing sleeve 17, and the outside of the snap-fit plates 21 is in contact with the inside of the limiting groove 18.
[0015] The receiving plate 1, U-shaped plate 1, U-shaped plate 2, U-shaped plate 3, U-shaped plate 4, and long plate 5 are each provided with two toothed rings 11 to provide an adapter interface for the installation of the connecting sleeve 12, ensuring the synchronous rotation of the connecting sleeve 12 and the hinge component, and improving the synchronicity of angle adjustment. The connecting sleeve 12 is provided on the toothed ring 11 and engages with the teeth 10 to fix the rotation angle of the hinge component, improving the firmness of the bracket angle locking. The connecting sleeve 12 has teeth 10 in external engagement contact, which engages with the connecting sleeve 12 to lock the angle of the hinge component, preventing the bracket from rotating unexpectedly after unfolding and ensuring the stability of the testing process.
[0016] The tooth 10 is externally slidably connected to a limiting sleeve 7, which guides and limits the sliding of the tooth 10, ensuring that the tooth 10 moves in a preset direction and improving the reliability of the engagement and locking. Two limiting rods 8 are fixedly connected inside the limiting sleeve 7, precisely limiting the sliding of the tooth 10 and preventing it from deviating during movement, thus ensuring the accuracy of engagement and unlocking actions. A spring 9 is sleeved on the outside of the limiting rods 8, providing elastic restoring force to the tooth 10, allowing it to automatically reset and re-engage with the connecting sleeve 12 after unlocking, simplifying the angle locking operation. One end of spring 9 is fixedly connected to the inside of the limiting sleeve 7, and the other end of spring 9 is fixedly connected to the bottom end of the tooth 10. The inside of the tooth 10 is slidably connected to the outside of the limiting rod 8. The bottom end of the limiting sleeve 7 is fixedly connected to a rotating rod 6, which provides axial support for the rotation of each hinge component and ensures the smoothness of the angle adjustment process. The outside of multiple rotating rods 6 is fixedly connected to the outside of U-shaped plate 2, U-shaped plate 3, U-shaped plate 4 and long plate 5 respectively. The outside of the rotating rods 6 is rotatably connected to the inside of U-shaped plate 2, U-shaped plate 3, U-shaped plate 4 and long plate 5.
[0017] Working principle: The operator first holds the handle 25 on the outside of the receiving plate 1 and takes the entire device out of its stored state. At this time, the receiving plate 1, U-shaped plate 1, U-shaped plate 2, U-shaped plate 3, U-shaped plate 4 and long plate 5 are in a folded and retracted state, and the rotating rods 6 of each component are in the initial engagement and locking position. The operator unlocks each hinge component in turn. For each rotating rod 6, the operator presses the teeth 10 into the limiting sleeve 7. The teeth 10 slide down along the limiting rod 8 and compress the spring 9 until the teeth 10 disengage from the connecting sleeve 12. At this time, the connecting sleeve 12 loses the limiting position of the teeth 10 and can rotate with the rotating rod 6.
[0018] The operator rotates U-shaped plate 2 to a preset angle around the rotating rod 6 on the receiving plate 1, then releases the tooth 10. Spring 9 pushes the tooth 10 upward to reset, and the tooth 10 re-engages with the connecting sleeve 12, completing the angle locking of U-shaped plate 2. Using the same unlocking, rotating, and locking operation, the angles of U-shaped plate 3 relative to U-shaped plate 2, U-shaped plate 4 relative to U-shaped plate 2, and long plate 5 relative to U-shaped plate 4 are adjusted sequentially until the folding bracket of the entire device is fully unfolded and long plate 5 is at a horizontal position or the required detection working angle.
[0019] The operator rotates the handle 14 on the outside of the long plate 5. Rotating the handle 14 causes the threaded rod 15 to rotate. Since the threaded rod 15 and the threaded sleeve 16 are threadedly connected, and the sliding sleeve 13 limits the sliding of the threaded sleeve 16, the threaded sleeve 16 slides in a straight line along the length of the long plate 5. The threaded sleeve 16 drives the outer fixed sleeve 17 to move synchronously until the fixed sleeve 17 moves to the position directly above the skin area to be tested.
[0020] The operator presses the detection mechanism 24 downwards onto the outside of the fixed sleeve 17. The inner wall of the detection mechanism 24 contacts the end of the snap-fit plate 21, pushing the two snap-fit plates 21 to rotate inwards around the limiting rotating column 20. The snap-fit plates 21 compress the second spring 23 and drive the square block 22 to rotate synchronously until the detection mechanism 24 is completely fitted onto the outside of the fixed sleeve 17. At this time, the second spring 23 pushes the two snap-fit plates 21 to reset outwards. The outside of the snap-fit plate 21 contacts the inside of the limiting groove 18. One square block 22 contacts the inner wall of the limiting groove 18, and the other square block 22 contacts the bottom end of the abutment rod 19, thus completing the snap-fit fixing of the detection mechanism 24.
[0021] To switch between dermatoscope and Wood's lamp detection modes, the operator can directly operate the corresponding function button on the detection mechanism 24 to activate the corresponding detection light source or imaging module for observation and recording of the skin area to be detected. If fine-tuning of the position of the detection mechanism 24 is required during the detection process, the handle 14 can be turned again. Through the transmission of the threaded rod 15 and the threaded sleeve 16, the fixed sleeve 17 and the detection mechanism 24 will be moved horizontally within a small range to align with different detection areas.
[0022] After the test is completed, the operator presses down the abutment rod 19. The bottom end of the abutment rod 19 pushes the corresponding square block 22, causing the locking plate 21 to rotate inward around the limiting rotating column 20. The second spring 23 is compressed until the locking plate 21 is disengaged from the inner wall of the testing mechanism 24. At this time, the operator can pull the testing mechanism 24 upward to complete the disassembly of the testing mechanism 24.
[0023] The operator unlocks each hinged component again, pressing the teeth 10 to disengage them from the connecting sleeve 12. Then, the operator rotates the long plate 5, U-shaped plate three 4, U-shaped plate two 3, and U-shaped plate one 2 in reverse order, folding each component up to the top of the receiving plate 1 until all components are in a compact, stowed state. The operator then holds the handle 25 and stores the entire device in a carrying bag or storage location, completing the entire workflow.
[0024] Throughout the entire process, from the removal and unfolding angle adjustment of the device, to the installation, position fine-tuning and testing of the detection mechanism 24, and then to the disassembly and storage after testing, each step revolves around the angle locking and unlocking of the folding bracket, the snap-fit fixing and disassembly of the detection mechanism 24, and the precise adjustment of the detection position. The multi-angle fixing of the folding bracket is achieved by the meshing and locking of the teeth 10 and the connecting sleeve 12. The quick assembly and disassembly of the detection mechanism 24 is achieved by the cooperation of the spring 23 and the snap-fit plate 21. The horizontal fine-tuning of the detection position is achieved by the transmission of the threaded rod 15 and the threaded sleeve 16, ensuring a balance between portability and functionality of the device and meeting the skin testing needs in different scenarios.
Claims
1. A split-type portable dermatoscope and Wood's lamp combination device, comprising a receiving plate (1), characterized in that: A U-shaped plate (2) is rotatably connected to the receiving plate (1), a U-shaped plate (3) is rotatably connected to the U-shaped plate (2), a U-shaped plate (4) is rotatably connected to the U-shaped plate (3), a long plate (5) is rotatably connected to the U-shaped plate (4), a sliding sleeve (13) is fixedly connected to the outside of the long plate (5), a threaded sleeve (16) is slidably connected to the inside of the sliding sleeve (13), and a fixed sleeve (17) is fixedly connected to the outside of the threaded sleeve (16). 17) has a limiting groove (18) inside, and a contact rod (19) is slidably connected inside the limiting groove (18). A limiting rotating column (20) is rotatably connected inside the limiting groove (18). Two snap-fit plates (21) are rotatably connected outside the limiting rotating column (20). A square block (22) is fixedly connected outside the snap-fit plate (21). Springs (23) are provided on the two snap-fit plates (21). A detection mechanism (24) is slidably connected outside the two snap-fit plates (21).
2. The modular portable dermatoscope and Wood's lamp combination device according to claim 1, characterized in that: The receiving plate (1), U-shaped plate one (2), U-shaped plate two (3), U-shaped plate three (4) and long plate (5) are respectively provided with two toothed rings (11). A connecting sleeve (12) is provided on the toothed ring (11). The connecting sleeve (12) has teeth (10) meshing with its outside. A limiting sleeve (7) is slidably connected to the outside of the teeth (10). Two limiting rods (8) are fixedly connected inside the limiting sleeve (7). A spring one (9) is sleeved on the outside of the limiting rod (8). A rotating rod (6) is fixedly connected to the bottom end of the limiting sleeve (7).
3. The modular portable dermatoscope and Wood's lamp combination device according to claim 2, characterized in that: Multiple rotating rods (6) are fixedly connected to the outside of U-shaped plate 1 (2), U-shaped plate 2 (3), U-shaped plate 3 (4) and long plate (5), respectively. The outside of the rotating rods (6) is rotatably connected to the inside of U-shaped plate 1 (2), U-shaped plate 2 (3), U-shaped plate 3 (4) and long plate (5).
4. The split-type portable dermatoscope and Wood's lamp combination device according to claim 1, characterized in that: The two ends of the second spring (23) are respectively set at the near ends of the two snap-fit plates (21), so that the snap-fit plates (21) are reset after rotation.
5. The split-type portable dermatoscope and Wood's lamp combination device according to claim 1, characterized in that: The threaded sleeve (16) is internally threaded with a threaded rod (15), and the threaded rod (15) is externally fixedly connected with a rotating handle (14). The threaded rod (15) is internally rotatably connected to the inside of the long plate (5).
6. The modular portable dermatoscope and Wood's lamp combination device according to claim 1, characterized in that: The detection mechanism (24) is in contact with the outside of the fixing sleeve (17), and the outside of the snap plate (21) is in contact with the inside of the limiting groove (18).
7. The split-type portable dermatoscope and Wood's lamp combination device according to claim 1, characterized in that: One of the square blocks (22) has its exterior in contact with the bottom end of the abutment rod (19), and the exterior of the other square block (22) is in contact with the interior of the limiting groove (18). The receiving plate (1) is fixedly connected to the exterior with a handle (25).
8. The split-type portable dermatoscope and Wood's lamp combination device according to claim 2, characterized in that: One end of the spring (9) is fixedly connected to the inside of the limiting sleeve (7), and the other end of the spring (9) is fixedly connected to the bottom end of the tooth (10). The inside of the tooth (10) is slidably connected to the outside of the limiting rod (8).