An upper limb support device
By designing a multi-degree-of-freedom upper limb support device, the problem of low efficiency in wound examination and treatment in existing technologies has been solved. It achieves flexible support and stable fixation, meets the upper limb support needs of different patients, and improves the convenience and safety of use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI TENTH PEOPLES HOSPITAL
- Filing Date
- 2025-08-26
- Publication Date
- 2026-07-21
AI Technical Summary
Existing upper limb support devices require the removal of the fixation structure during wound examination and treatment, which affects efficiency.
Design an upper limb support device comprising a fixed base, a rotating arm, an adjusting arm, and a load-bearing support plate. Through multi-degree-of-freedom adjustment and fastening bolts, it achieves flexible support and stable fixation of the patient's upper limb.
It enables multi-degree-of-freedom support and adjustment for the patient's upper limbs, improving the convenience and safety of wound examination and care, and adapting to the needs of different patients.
Smart Images

Figure CN224523491U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, specifically to an upper limb support device. Background Technology
[0002] An upper limb support device is a device that can suspend and support the upper limb. Its function is to prevent wounds on the surface of the upper limb from festering due to continuous contact with the bed, and to promote wound healing.
[0003] In existing technologies, common upper limb support devices fix the upper limb to a support plate using restraint straps or other fixed structures, which can suspend and support the upper limb. However, when examining and treating wounds, if the wound is outside the medical staff's line of sight, the restraint on the upper limb must be released first, and then the wound must be moved into the medical staff's line of sight before it can be examined and treated, thus reducing the efficiency of wound examination and treatment. Utility Model Content
[0004] To address the shortcomings of existing technologies, this invention provides an upper limb support device that overcomes these limitations, enabling multi-degree-of-freedom support and adjustment for the patient's upper limb, thus meeting the upper limb support needs of different patients during rest or treatment. It also facilitates wound examination and nursing procedures on the patient's upper limb.
[0005] To achieve the above objectives, this utility model provides the following technical solution: An upper limb support device includes a fixed base, a rotating arm, an adjusting arm, and a support plate. A first support column is fixedly connected to the top of the fixed base, and a first shaft hole is formed in the middle of the upper surface of the first support column. A first rotating support column is fixedly connected to the lower surface of one end of the rotating arm. The first rotating support column is inserted into the first shaft hole and rotatably connected to the first support column. A second support column is fixedly installed on the upper surface of the other end of the rotating arm. A second shaft hole is formed in the middle of the upper surface of the second support column. The adjusting arm includes a lower support base, an upper support base, and a connecting arm. The two ends of the connecting arm are connected to the lower support base and the upper support base, respectively. A second rotating support column is fixedly connected to the bottom end of the lower support base. The second rotating support column is inserted into a second shaft hole and rotatably connected to the second support column. A bushing seat is fixedly connected above the upper support base. The bushing seat has mounting through holes on both its left and right sides. A rotating shaft block is rotatably connected in the mounting through holes. A first threaded hole is opened in the middle of the rotating shaft block. A second threaded hole corresponding to the first threaded hole is opened in the middle of the bushing seat. The bottom of the bearing plate is equipped with a hinge seat, which is sleeved on the outside of the bushing seat. Both sides of the hinge seat have through holes, and fastening bolts are installed in the through holes. The fastening bolts pass through the through holes and are threadedly connected to the first threaded hole of the rotating shaft block and the second threaded hole of the bushing seat.
[0006] Preferably, the fixing base includes an upper support plate, a vertical plate, and a lower mounting plate. The vertical plate is fixedly connected to one side of the lower surface of the upper support plate, and the lower mounting plate is vertically fixedly installed on the side of the vertical plate. A threaded hole is opened in the middle of the lower mounting plate, and the lower mounting plate is threadedly connected to an adjusting bolt through the threaded hole. A knob is fixedly installed at the lower end of the adjusting bolt. The upper end of the adjusting bolt passes through the threaded hole and is rotatably connected to a clamping clamp. A clamping space is formed between the upper surface of the clamping clamp and the lower surface of the upper support plate.
[0007] Preferably, the two ends of the connecting arm are respectively hinged to the lower support and the upper support via rotating shafts. A pneumatic rod is provided below the connecting arm. One end of the pneumatic rod is hinged to the end of the lower surface of the connecting arm near the upper support via a rotating shaft, and the other end of the pneumatic rod is hinged to the side surface of the lower support via a rotating shaft.
[0008] Preferably, a ball head is provided below the bearing plate, and a ball head seat is fixedly connected above the hinge seat. The ball head is inserted into the ball head seat and is movably connected to the ball head seat.
[0009] Preferably, a breathable pad is detachably installed on the upper surface of the support plate.
[0010] Preferably, a first bushing is installed in the first shaft hole, and the first rotating support is rotatably connected to the first shaft hole through the first bushing; a second bushing is installed in the second shaft hole, and the second rotating support is rotatably connected to the second shaft hole through the second bushing.
[0011] This invention provides an upper limb support device. It offers the following advantages: Through the coordinated operation of components such as the fixed base, rotating arm, adjusting arm, and support plate, medical personnel can flexibly adjust the height, angle, and support position of the support plate according to the patient's body shape and treatment needs. This achieves multi-degree-of-freedom support adjustment for the patient's upper limb, meeting the upper limb support needs of different patients during rest or treatment. Furthermore, the fastening bolts allow for the fixing of the support plate's angle and position according to actual usage requirements, preventing displacement due to accidental contact or patient movement, thus ensuring the stability and safety of the device during use. Simultaneously, the fastening bolts are simple to operate, facilitating quick adjustments by medical personnel based on the patient's specific condition. It also facilitates wound examination and care of the patient's upper limb, enhancing its convenience and applicability. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in this utility model or the prior art, the accompanying drawings used in the description of the prior art will be briefly introduced below.
[0013] Figure 1 A schematic diagram of the structure of this utility model; Figure 2 A schematic diagram of the structure of the load-bearing tray in this utility model; Figure 3 A schematic diagram of the structure of the fixed base in this utility model; Figure 4 A schematic diagram of the rotating arm in this utility model; Figure 5 A schematic diagram of the cross-sectional structure of the adjusting arm in this utility model; Explanation of the labels in the diagram: 1. Fixed base; 2. Rotating arm; 3. Adjusting arm; 4. Bearing plate; 5. First support column; 6. First rotating support column; 7. Second support column; 8. Second rotating support column; 9. Bushing seat; 10. Rotating shaft block; 11. Hinge seat; 12. Fastening bolt; 13. Ball head; 14. Ball head seat; 15. Breathable soft pad; 16. First bushing; 17. Second bushing; 31. Lower support base; 32. Upper support base; 33. Connecting arm; 34. Pneumatic rod; 101. Upper support plate; 102. Vertical plate; 103. Lower mounting plate; 104. Adjusting bolt; 105. Knob; 106. Clamping plate. Detailed Implementation
[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings.
[0015] Example 1, as Figures 1 to 5 As shown, an upper limb support device includes a fixed base 1, a rotating arm 2, an adjusting arm 3, and a support plate 4. A first support column 5 is fixedly connected to the top of the fixed base 1, and a first shaft hole is opened in the middle of the upper surface of the first support column 5. A first rotating support column 6 is fixedly connected to the lower surface of one end of the rotating arm 2. The first rotating support column 6 is inserted into the first shaft hole and rotatably connected to the first support column 5. A second support column 7 is fixedly installed on the upper surface of the other end of the rotating arm 2. A second shaft hole is opened in the middle of the upper surface of the second support column 7. The adjusting arm 3 includes a lower support 31, an upper support 32, and a connecting arm 33. The two ends of the connecting arm 33 are connected to the lower support 31 and the upper support 32 respectively. A second rotating support column 8 is fixedly connected to the bottom end of the lower support 31. The second rotating support column 8 is inserted into the second shaft hole and rotatably connected to the second support column 7. A bushing seat 9 is fixedly connected above the upper support 32. The bushing seat 9 has mounting through holes on both its left and right sides. A rotating shaft block 10 is rotatably connected in the mounting through holes. A first threaded hole is opened in the middle of the rotating shaft block 10. A second threaded hole corresponding to the first threaded hole is opened in the middle of the bushing seat 9. The bottom of the bearing plate 4 is equipped with a hinge seat 11, which is sleeved on the outside of the bushing seat 9. Both sides of the hinge seat 11 have through holes, and fastening bolts 12 are installed in the through holes. The fastening bolts 12 pass through the through holes and are threadedly connected to the first threaded hole of the rotating shaft block 10 and the second threaded hole of the bushing seat 9.
[0016] Working principle: When using it, first fix the base 1 in a suitable position such as the side of the hospital bed or the bedside table; then, according to the position requirements of the patient's upper limb, adjust the rotating arm 2 to rotate around the first support column 5, and adjust the adjusting arm 3 to rotate around the second support column 7 to adjust the spatial position and horizontal angle of the support plate 4; so that the support plate 4 can accurately adapt to the placement angle and position of the patient's upper limb.
[0017] Subsequently, based on the angle requirements of the patient's upper limb placement, the support plate 4 can be vertically adjusted by the hinge joint 11 at the bottom of the support plate 4 and the bushing seat 9, allowing the support plate 4 to be adjusted according to the natural bending state of the patient's upper limb. Once the appropriate angle is achieved, the fastening bolt 12 can be tightened, allowing the screw of the fastening bolt 12 to engage with the first threaded hole of the rotating shaft block 10 and the second threaded hole of the bushing seat 9 for quick locking. This locks and fixes the angle of the support plate 4, ensuring its stability during use and preventing displacement due to external forces, thus effectively supporting the patient's upper limb. Furthermore, the support plate 4's open structure design with an arc-shaped curved upper surface ensures it can adapt to the upper limb placement needs of patients of different body types, while also facilitating wound examination and nursing procedures, improving its convenience and applicability.
[0018] This invention, through the coordinated operation of components such as a fixed base, rotating arm, adjusting arm, and support plate, allows medical personnel to flexibly adjust the height, angle, and support position of the support plate 4 according to the patient's body shape and treatment needs. This achieves multi-degree-of-freedom support adjustment for the patient's upper limbs, meeting the upper limb support needs of different patients during rest or treatment. Furthermore, the fastening bolts 12 allow for the fixing of the support angle and position of the support plate 4 according to actual usage requirements, preventing displacement due to accidental contact or patient movement, thus ensuring the stability and safety of the device during use. Simultaneously, the fastening bolts 12 are easy to operate, facilitating quick adjustments by medical personnel based on the patient's specific condition, enhancing the overall practicality and user-friendly design of the device. In practical implementation, medical personnel can adjust the support plate 4 according to the patient's body shape and treatment needs.
[0019] In embodiment two, as a further preferred embodiment one, the fixing base 1 includes an upper support plate 101, a vertical plate 102, and a lower mounting plate 103. The vertical plate 102 is fixedly connected to one side of the lower surface of the upper support plate 101, and the lower mounting plate 103 is vertically fixedly installed on the side of the vertical plate 102. A threaded hole is opened in the middle of the lower mounting plate 103, and the lower mounting plate 103 is threadedly connected to the adjusting bolt 104 through the threaded hole. A knob 105 is fixedly installed at the lower end of the adjusting bolt 104. The upper end of the adjusting bolt 104 passes through the threaded hole and is rotatably connected to a clamping plate 106. A clamping space is formed between the upper surface of the clamping plate 106 and the lower surface of the upper support plate 101.
[0020] Therefore, when it is necessary to install the fixing base 1 in a suitable position such as the side of the hospital bed or the bedside table, the adjusting bolt 104 can be rotated by rotating the knob 105 first, so that the clamping plate 106 at the upper end of the adjusting bolt 104 moves downward, ensuring that there is enough space between the upper surface of the clamping plate 106 and the lower surface of the upper support plate 101 for clamping the edge of the hospital bed or the bedside table. Then, the fixing base 1 is placed in the target installation position, and the knob 105 is rotated in the opposite direction, so that the adjusting bolt 104 moves the clamping plate 106 upward, thereby clamping and fixing the edge of the hospital bed or the bedside table, achieving a stable installation of the fixing base 1. This installation method is convenient to operate, provides a firm clamping, and is suitable for bed or cabinet structures of different thicknesses, further improving the adaptability and practicality of the device.
[0021] In Example 3, as a further preferred embodiment of Example 1, the two ends of the connecting arm 33 are hinged to the lower support base 31 and the upper support base 32 respectively via pivots. A pneumatic rod 34 is provided below the connecting arm 33. One end of the pneumatic rod 34 is hinged to the end of the lower surface of the connecting arm 33 near the upper support base 32 via a pivot, and the other end of the pneumatic rod 34 is hinged to the side surface of the lower support base 31 via a pivot. By setting the pneumatic rod 34, one end of the pneumatic rod 34 is hinged to the connecting arm 33, and the other end is hinged to the lower support base 31. The extension and retraction of the pneumatic rod 34 can drive the connecting arm 33 to swing around its hinge point with the lower support base 31, thereby adjusting the overall angle of the adjusting arm 3. This allows medical personnel to easily and precisely adjust the height and tilt angle of the support plate 4 to meet the upper limb support needs of different patients. Furthermore, the extension and retraction of the pneumatic rod 34 can be controlled by a control valve provided on it. The control valve can be easily integrated into the device for easy operation by medical personnel.
[0022] In Example 4, as a further preferred embodiment of Example 1, a ball head 13 is provided below the support plate 4, and a ball head seat 14 is fixedly connected above the hinge seat 11. The ball head 13 is inserted into the ball head seat 14 and is movably connected to the ball head seat 14 by a clearance fit. This arrangement of the ball head 13 and ball head seat 14 allows the support plate 4 to be adjusted vertically around the shaft sleeve 9, and also enables fine-tuning of the support plate 4 at any angle around the connection point between the ball head 13 and the ball head seat 14. This further improves the adaptability and support comfort of the support plate 4 for the patient's upper limb. Consequently, patients experience greater comfort and freedom when receiving upper limb support, which is beneficial for their rehabilitation and treatment process.
[0023] In Example 5, as a further preferred embodiment of Example 1, a breathable pad 15 is detachably installed on the upper surface of the support plate 4. The breathable pad 15 increases the comfort of contact between the support plate 4 and the patient's upper limb. Simultaneously, the breathable design of the pad 15 effectively prevents the patient's upper limb from experiencing stuffiness and discomfort due to prolonged contact with the support plate 4. The detachable installation design of the breathable pad 15 (in this embodiment, a detachable connection can be achieved using Velcro or snaps) facilitates cleaning and replacement by medical personnel, ensuring the hygiene of the support plate 4 and further improving the ease of use and practicality of the device.
[0024] In Example 6, as a further preferred embodiment of Example 1, a first bushing 16 is installed in the first shaft hole, and the first rotating support 6 is rotatably connected to the first shaft hole via the first bushing 16; a second bushing 17 is installed in the second shaft hole, and the second rotating support 8 is rotatably connected to the second shaft hole via the second bushing 17. By setting the first bushing 16 and the second bushing 17, the rotational connection between the first rotating support 6 and the first shaft hole, and between the second rotating support 8 and the second shaft hole, is made smoother, reducing frictional resistance and improving the rotational flexibility and service life of the device. At the same time, the use of bushings can also provide a certain degree of protection for the rotating support, avoiding wear caused by direct contact between the rotating support and the shaft hole wall, further enhancing the durability of the device.
[0025] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. An upper limb support device, characterized in that: The device includes a fixed base (1), a rotating arm (2), an adjusting arm (3), and a support plate (4). A first support column (5) is fixedly connected above the fixed base (1), and a first shaft hole is opened in the middle of the upper surface of the first support column (5). A first rotating support column (6) is fixedly connected to the lower surface of one end of the rotating arm (2), and the first rotating support column (6) is inserted into the first shaft hole and rotatably connected to the first support column (5). A second support column (7) is fixedly installed on the upper surface of the other end of the rotating arm (2). A second shaft hole is opened in the middle of the upper surface of the second support column (7). The adjusting arm (3) includes a lower support (31), an upper support (32) and a connecting arm (33). The two ends of the connecting arm (33) are connected to the lower support (31) and the upper support (32) respectively. The bottom end of the lower support (31) is fixedly connected to a second rotating support (8). The second rotating support (8) is inserted into the second shaft hole and rotatably connected to the second support column (7). The upper support (32) is fixedly connected to a bushing seat (9). The bushing seat (9) has mounting through holes on both the left and right sides. A rotating shaft block (10) is rotatably connected in the mounting through holes. The rotating shaft block (10) has a first threaded hole in the middle. The bushing seat (9) has a second threaded hole in the middle corresponding to the first threaded hole. The bottom of the bearing plate (4) is equipped with a hinge seat (11), which is sleeved on the outside of the bushing seat (9). The left and right sides of the hinge seat (11) are provided with through holes, and fastening bolts (12) are provided in the through holes. The fastening bolts (12) pass through the through holes and are threadedly connected to the first threaded hole of the rotating shaft block (10) and the second threaded hole of the bushing seat (9).
2. The upper limb support device according to claim 1, characterized in that: The fixed base (1) includes an upper support plate (101), a vertical plate (102), and a lower mounting plate (103). The vertical plate (102) is fixedly connected to one side of the lower surface of the upper support plate (101). The lower mounting plate (103) is vertically fixedly installed on the side of the vertical plate (102). A threaded hole is provided in the middle of the lower mounting plate (103). The lower mounting plate (103) is threadedly connected to the adjusting bolt (104) through the threaded hole. A knob (105) is fixedly installed at the lower end of the adjusting bolt (104). The upper end of the adjusting bolt (104) passes through the threaded hole and is rotatably connected to a clamping plate (106). A clamping space is formed between the upper surface of the clamping plate (106) and the lower surface of the upper support plate (101).
3. The upper limb support device according to claim 1, characterized in that: The two ends of the connecting arm (33) are respectively hinged to the lower support seat (31) and the upper support seat (32) via rotating shafts. A pneumatic rod (34) is provided below the connecting arm (33). One end of the pneumatic rod (34) is hinged to the end of the lower surface of the connecting arm (33) near the upper support seat (32) via rotating shafts. The other end of the pneumatic rod (34) is hinged to the side surface of the lower support seat (31) via rotating shafts.
4. The upper limb support device according to claim 1, characterized in that: A ball head (13) is provided below the bearing plate (4), and a ball head seat (14) is fixedly connected above the hinge seat (11). The ball head (13) is inserted into the ball head seat (14) and is movably connected to the ball head seat (14).
5. The upper limb support device according to claim 1, characterized in that: The upper surface of the support plate (4) is detachably fitted with a breathable pad (15).
6. The upper limb support device according to claim 1, characterized in that: A first bushing (16) is installed in the first shaft hole, and the first rotating support (6) is rotatably connected to the first shaft hole through the first bushing (16); a second bushing (17) is installed in the second shaft hole, and the second rotating support (8) is rotatably connected to the second shaft hole through the second bushing (17).