Multifunctional limb positioning fixing frame

The multifunctional limb positioning fixation frame driven by electric push rods and servo motors solves the problem of inconvenient height and position adjustment in the existing technology, achieves flexible limb fixation and improved comfort, and improves the treatment effect.

CN223474054UActive Publication Date: 2025-10-28THE AFFILIATED HOSPITAL OF SHANDONG UNIV OF TCM
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Patent Information

Application Number
CN202422729747.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-11
Publication Date
2025-10-28
Estimated Expiration
2034-11-11

AI Technical Summary

Technical Problem

Existing limb positioning fixation frames are difficult to adjust in height and position according to the actual situation of the patient, resulting in inconvenience in use.

Method used

The multifunctional limb positioning frame is driven by an electric push rod and a servo motor. The height of the operating table is adjusted by the electric push rod, and the servo motor drives the worm to drive the screw to slide. Combined with the air pump expansion pad and strap fixation, flexible adjustment of height and position is achieved, and a massage strip is equipped to improve comfort.

Benefits of technology

The flexible fixation and height adjustment of the patient's limbs are achieved, the practicality and comfort of the fixation frame are improved, and the treatment effect is enhanced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of medical instruments, and discloses a multifunctional limb positioning fixing frame which comprises a fixing seat and a placing table, fixing plates are fixedly connected to the left side and the right side of the top of the fixing seat respectively, and electric push rods are fixedly connected to the sides, away from each other, of the two fixing plates respectively. First connecting pieces are fixedly connected to one ends of the two electric push rods correspondingly, a plurality of rotating plates are rotationally connected to the adjacent sides of the two first connecting pieces correspondingly, the middles of the multiple rotating plates are rotationally connected through a rotating shaft, and second connecting pieces are rotationally connected to the top ends of the multiple rotating plates correspondingly; the tops of the multiple second connecting pieces are slidably connected with an operation table. According to the fixing frame, the electric push rod is started to drive the rotating plate to push the operation table to be lifted upwards, the height of the operation table is adjusted, meanwhile, the servo motor is started to drive the worm to drive the movable base to slide left and right, limbs at different positions are fixed and adjusted, and the functionality of the fixing frame is improved.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a multifunctional limb positioning and fixation frame. Background Technology

[0002] Neurology is a department in the medical field that specializes in the research and treatment of diseases of the nervous system. The nervous system includes the brain, spinal cord, and peripheral nerves. These structures are complex and have diverse functions. Therefore, neurology covers a wide range of diseases, from common headaches, dizziness, and stroke to complex conditions such as epilepsy, Parkinson's disease, and multiple sclerosis.

[0003] In the daily work of neurology, it is often necessary to immobilize the patient's limbs in order to treat the patient. Limb positioning and immobilization frames directly undertake the tasks of admitting, diagnosing and treating patients. Especially in supine surgery, it is necessary to immobilize the patient's upper and lower limbs to ensure the smooth progress of the operation.

[0004] Existing limb positioning and immobilization frames combine supports and fixing straps, resulting in a simple and lightweight overall structure. However, most limb immobilization frames are difficult to adjust in height and position during use, making it inconvenient to adjust them according to the patient's actual situation and greatly reducing the functionality of the limb immobilization frame. Therefore, a multifunctional limb positioning and immobilization frame is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a multifunctional limb positioning and fixation frame, which aims to improve the problem that most existing limb fixation frames are difficult to adjust in height and position according to the patient's actual situation.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a multifunctional limb positioning and fixing frame, including a fixed base and a placement platform. Fixed plates are fixedly connected to the top left and right sides of the fixed base. Electric push rods are fixedly connected to the opposite sides of the two fixed plates. Connector 1 is fixedly connected to one end of each of the two electric push rods. Multiple rotating plates are rotatably connected to adjacent sides of the two connector 1s. The middle parts of the multiple rotating plates are rotatably connected via rotating shafts. Connector 2 is rotatably connected to the top of each of the multiple rotating plates. An operating platform is slidably connected to the top of the multiple connector 2s. A sliding groove is provided on the top of the operating platform. A screw is rotatably connected inside the sliding groove. A movable seat is threaded onto the outer wall of the screw. A worm gear is fixedly connected to the left end of the outer wall of the screw. Mounting plates are fixedly connected to the bottom left side of the operating platform. A servo motor is fixedly connected to the front side of the mounting plate. A worm gear is fixedly connected to the output end of the servo motor. The outer wall of the worm gear meshes with the outer wall of the worm gear. A fixing mechanism is provided on the top of the placement platform for fixing the limb.

[0007] As a further description of the above technical solution:

[0008] The fixing mechanism includes a strap, one end of which is fixedly connected to the top right side of the placement platform. A fixing member is fixedly connected to the left side of the placement platform, and a fixing bolt is threaded to the left side of the fixing member. An air pump is fixedly connected to the right side of the movable seat. One end of the air pump is connected to a connecting pipe, and the other end of the connecting pipe passes through the outer wall of the strap and connects to an expansion pad. The outer wall of the connecting pipe is connected to a connecting pipe, and the other end of the connecting pipe passes through the right side of the placement platform and connects to the expansion pad. Multiple massage strips are fixedly connected to adjacent sides of the expansion pads.

[0009] As a further description of the above technical solution:

[0010] Hollow columns are fixedly connected to the four corners of the top of the fixed base. Limiting rods are slidably connected inside the hollow columns. The tops of the limiting rods are fixedly connected to the bottom of the operating table.

[0011] As a further description of the above technical solution:

[0012] A controller is fixedly connected to the front side of the operating panel. The controller is electrically connected to the electric push rod, the servo motor and the air pump respectively.

[0013] As a further description of the above technical solution:

[0014] Multiple rotating blocks are fixedly connected to both the left and right sides of the placement platform, and handles are rotatably connected between adjacent rotating blocks.

[0015] As a further description of the above technical solution:

[0016] The front and rear sides of the movable seat are fixedly connected to support frames, and the top of the two support frames are fixedly connected to auxiliary trays.

[0017] As a further description of the above technical solution:

[0018] The front and rear sides of the movable seat are fixedly connected with reinforcing plates, and the bottom of the two reinforcing plates are fixedly connected to the top of the support frame.

[0019] As a further description of the above technical solution:

[0020] The bottom of each of the fixed bases is fixedly connected to multiple support plates, and the bottom front and rear sides of each of the multiple support plates are fixedly connected to support columns.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by activating the electric push rod, the connecting piece one is driven to be squeezed inward. When the rotating plate is squeezed, the angle between them is adjusted and the connecting piece two is driven to slide synchronously, which pushes the operating table to be lifted upward, thereby realizing the height adjustment of the operating table; at the same time, by activating the servo motor, the worm gear is driven to rotate synchronously, which causes the worm gear to drive the moving seat on the screw to slide left and right, thereby realizing the fixation and adjustment of the limbs in different positions, improving the practicality and functionality of the fixing frame.

[0023] 2. In this utility model, the limb is placed on the placement platform, and one end of the strap is inserted into the fixing member. At the same time, the fixing bolt is rotated to fix the strap. To ensure the fixation is firm, the air pump is started to inject gas into the expansion pad one and expansion pad two, causing the expansion pad one and expansion pad two to expand and apply adaptive compression to the patient's limb, ensuring the limb is firm. The massage strip can massage the patient's limb during the repeated expansion process, improving blood circulation, increasing user comfort and treatment effect. Attached Figure Description

[0024] Figure 1 This is a perspective view of a multifunctional limb positioning and fixing frame proposed in this utility model;

[0025] Figure 2 This is a front view of a multifunctional limb positioning and fixing frame proposed in this utility model;

[0026] Figure 3 This is a partial structural cross-sectional view of a multifunctional limb positioning and fixing frame proposed in this utility model;

[0027] Figure 4 This is a structural schematic diagram of a multifunctional limb positioning and fixing frame proposed in this utility model;

[0028] Figure 5 This is a schematic diagram of the fixing mechanism of a multifunctional limb positioning and fixing frame proposed in this utility model.

[0029] Legend:

[0030] 1. Fixed base; 2. Fixed mechanism; 201. Strap; 202. Fixing component; 203. Fixing bolt; 204. Air pump; 205. Connecting pipe one; 206. Connecting pipe two; 207. Expansion pad one; 208. Expansion pad two; 209. Massage bar; 3. Fixed plate; 4. Electric push rod; 5. Connecting component one; 6. Rotating plate; 7. Rotating shaft; 8. Connecting component two; 9. Operating table; 10. Slide groove; 11. Moving base; 12. Screw; 13. Worm gear; 14. Mounting plate; 15. Servo motor; 16. Worm gear; 17. Support plate; 18. Support column; 19. Hollow column; 20. Limiting rod; 21. Controller; 22. Rotating block; 23. Handle; 24. Support frame; 25. Reinforcing plate; 26. Auxiliary support plate; 27. Placement table. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 , Figure 3 and Figure 4This utility model provides an embodiment of a multifunctional limb positioning and fixing frame, including a fixing base 1 and a placement platform 27. Fixing plates 3 are fixedly connected to the top left and right sides of the fixing base 1. Electric push rods 4 are fixedly connected to the opposite sides of the two fixing plates 3. Connecting member 1 5 is fixedly connected to one end of each of the two electric push rods 4. Multiple rotating plates 6 are rotatably connected to adjacent sides of the two connecting members 1 5. The middle parts of the multiple rotating plates 6 are rotatably connected via rotating shafts 7. Connecting member 2 8 is rotatably connected to the top of each of the multiple rotating plates 6. Operating... The top of the operating table 9 has a slide groove 10, and a screw 12 is rotatably connected inside the slide groove 10. A movable seat 11 is threadedly connected to the outer wall of the screw 12. A worm gear 13 is fixedly connected to the left end of the outer wall of the screw 12. Mounting plates 14 are fixedly connected to the bottom left side of the operating table 9. A servo motor 15 is fixedly connected to the front side of the front mounting plate 14. A worm gear 16 is fixedly connected to the output end of the servo motor 15. The outer wall of the worm gear 16 is meshed with the outer wall of the worm gear 13. A fixing mechanism 2 is provided on the top of the placement table 27. The fixing mechanism 2 is used to fix the limb.

[0033] Specifically, fixing plates 3 are fixedly installed on both sides of the top of the fixed base 1. Electric actuators 4 (Hydraulic Actuators) are fixedly installed on the relatively distant side of the fixing plates 3. One end of the electric actuator 4 passes through the fixing plate 3 and is connected to connector 5. Meanwhile, multiple connectors 8 are slidably installed on the bottom of the operating platform 9. Connectors 5 and connectors 8 are rotatably installed via multiple cross rotating plates 6. The center of the cross rotating plates 6 is connected via a rotating shaft 7. Activating the electric actuator 4 causes connector 5 to be pressed inward. When pressed, the rotating plates 6 adjust their angles and simultaneously slide the connectors 8, causing them to push the operating platform 9 upward. The height of the operating table 9 can be adjusted by raising it. A slide groove 10 is provided on the top of the operating table 9, and a screw 12 is rotatably mounted inside the slide groove 10. A movable seat 11 is threadedly connected to the outer wall of the screw 12. The movable seat 11 is fixedly installed on the placement platform 27, which can be used to fix the patient's limbs. A worm gear 13 is fixed to the left end of the outer wall of the screw 12. Mounting plates 14 are fixed to the bottom left side of the operating table 9. A servo motor 15 (Parker SMH model) is fixedly installed through the front mounting plate 14. A worm gear 16 is fixed to the output end of the servo motor 15, and the outer wall of the worm gear 16 meshes with the outer wall of the worm gear 13. By starting the servo motor 15, the worm gear 16 drives the worm gear 13 to rotate synchronously, causing the worm gear 13 to drive the movable seat 11 on the screw 12 to slide left and right, thus achieving fixation and adjustment of the limbs in different positions, improving the practicality and functionality of the fixation frame.

[0034] Reference Figure 1 , Figure 2 and Figure 5 The fixing mechanism 2 includes a strap 201, one end of which is fixedly connected to the top right side of the placement platform 27. A fixing member 202 is fixedly connected to the left side of the placement platform 27, and a fixing bolt 203 is threadedly connected to the left side of the fixing member 202. An air pump 204 is fixedly connected to the right side of the movable seat 11. One end of the air pump 204 is connected to a connecting pipe 205, and the other end of the connecting pipe 205 passes through the outer wall of the strap 201 and is connected to an expansion pad 208. The outer wall of the connecting pipe 205 is connected to a connecting... Connector 206, the other end of connector 206 passes through the right side of the placement platform 27 and is connected to expansion pad 1 207. Multiple massage strips 209 are fixedly connected to the adjacent side of expansion pad 1 207 and expansion pad 208. Support frame 24 is fixedly connected to the front and rear sides of the movable seat 11. Auxiliary support plate 26 is fixedly connected to the top of the two support frames 24. Reinforcing plate 25 is fixedly connected to the front and rear sides of the movable seat 11. The bottom of the two reinforcing plates 25 is fixedly connected to the top of the support frame 24.

[0035] Specifically, one end of the strap 201 is fixedly connected to the top right side of the placement platform 27. A fixing member 202 is fixed to the left side of the placement platform 27, through which one end of the strap 201 is inserted. A fixing bolt 203 is threaded to the left side of the fixing member 202, and the strap 201 is fixed by rotating the fixing bolt 203. An air pump 204 is fixedly installed on the right side of the movable base 11. One end of the air pump 204 is connected to a connecting pipe 205, which transmits the airflow generated by the air pump 204 to the expansion pad 208, causing the expansion pad 208 to expand. Simultaneously, another connecting pipe 206 is connected to the outer wall of the connecting pipe 205. The other end of the connecting pipe 206 passes through the right side of the placement platform 27 and connects to the expansion pad 207, causing expansion... Similar to expansion pad 208, pad 1 (207) is also an inflatable device. When the air pump 204 is activated to inject gas into expansion pad 1 (207) and expansion pad 208, they expand and provide adaptive compression to the patient's limbs, ensuring their stability. Multiple massage strips 209 are installed on the inner walls of expansion pad 1 (207) and expansion pad 208. These massage strips massage the patient's limbs during repeated expansion, improving blood circulation and enhancing user comfort and treatment effectiveness. Support frames 24 are fixed to the front and rear sides of the movable seat 11. These support frames 24 support the auxiliary support plate 26, which in turn supports the remaining parts of the patient's limbs, improving comfort during treatment and examination.

[0036] Reference Figure 1 , Figure 2 and Figure 4 Hollow columns 19 are fixedly connected to the four corners of the top of the fixed base 1. Limit rods 20 are slidably connected inside the hollow columns 19. The tops of the limit rods 20 are fixedly connected to the bottom of the operating table 9. A controller 21 is fixedly connected to the front of the operating table 9. The controller 21 is electrically connected to the electric push rod 4, the servo motor 15 and the air pump 204 respectively. Multiple rotating blocks 22 are fixedly connected to the left and right sides of the placement platform 27. A handle 23 is rotatably connected between adjacent rotating blocks 22. Multiple support plates 17 are fixedly connected to the bottom of the fixed base 1. Support columns 18 are fixedly connected to the front and rear sides of the bottom of the multiple support plates 17.

[0037] Specifically, hollow columns 19 are installed at the four corners of the top of the fixed base 1. The hollow columns 19 are connected to the limit rods 20 to ensure the stability of the operating platform 9 during lifting. The controller 21 facilitates simple operation and control of the operating equipment on the entire device. At the same time, multiple rotating blocks 22 are installed on the left and right sides of the placement platform 27. The handles 23 are installed through the rotating blocks 22, and the operator can pick up the placement platform 27 by rotating the handles 22. Multiple support plates 17 are fixed at the bottom of the fixed base 1. The support plates 17, together with the support columns 18, further enhance the stability of the equipment and ensure stable operation in various working environments.

[0038] Working principle: First, the electric push rod 4 drives the connecting piece 5 to be pressed inward. When the rotating plate 6 is pressed, the angle between them is adjusted and the connecting piece 8 slides synchronously, which pushes the operating table 9 to be raised, thereby adjusting the height of the operating table 9. At the same time, the servo motor 15 drives the worm gear 16 to rotate synchronously, which in turn drives the moving seat 11 on the screw 12 to slide left and right, thereby fixing and adjusting the limbs in different positions and improving the practicality and functionality of the fixing frame.

[0039] The limb is placed on the placement platform 27, and one end of the strap 201 is inserted into the fixation member 202. At the same time, the fixation bolt 203 is rotated to fix the strap 201. To ensure the fixation is secure, the air pump 204 is started to inject gas into the expansion pad 1 207 and expansion pad 208, causing the expansion pad 1 207 and expansion pad 208 to expand and provide adaptive compression to the patient's limb, ensuring the limb is secure. At the same time, multiple massage strips 209 are installed on the inner wall of the expansion pad 1 207 and expansion pad 208. Through the massage strips 209, the patient's limb can be massaged during repeated expansion, improving blood circulation, increasing user comfort and treatment effect.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multifunctional limb positioning and fixing frame, comprising a fixing base (1) and a placement platform (27), characterized in that: Fixed plates (3) are fixedly connected to the top left and right sides of the fixed base (1). Electric push rods (4) are fixedly connected to the opposite sides of the two fixed plates (3). Connector 1 (5) is fixedly connected to one end of each of the two electric push rods (4). Multiple rotating plates (6) are rotatably connected to the adjacent sides of the two connectors 1 (5). The middle parts of the multiple rotating plates (6) are rotatably connected through a rotating shaft (7). Connector 2 (8) is rotatably connected to the top of each of the multiple rotating plates (6). An operating table (9) is slidably connected to the top of each of the multiple connectors 2 (8). A sliding groove (10) is provided on the top of the operating table (9). (10) has a screw (12) internally rotatably connected. The outer wall of the screw (12) is threadedly connected to a movable seat (11). The left end of the outer wall of the screw (12) is fixedly connected to a worm gear (13). The bottom left side of the operating table (9) is fixedly connected to a mounting plate (14). The front side of the mounting plate (14) is fixedly connected to a servo motor (15). The output end of the servo motor (15) is fixedly connected to a worm gear (16). The outer wall of the worm gear (16) is meshed with the outer wall of the worm gear (13). The top of the placement platform (27) is provided with a fixing mechanism (2). The fixing mechanism (2) is used to fix the limb.

2. The multifunctional limb positioning and fixing frame according to claim 1, characterized in that: The fixing mechanism (2) includes a strap (201), one end of which is fixedly connected to the top right side of the placement platform (27). A fixing member (202) is fixedly connected to the left side of the placement platform (27). A fixing bolt (203) is threadedly connected to the left side of the fixing member (202). An air pump (204) is fixedly connected to the right side of the movable seat (11). One end of the air pump (204) is connected to a connecting pipe (205). The other end of the connecting pipe (205) passes through the outer wall of the strap (201) and is connected to an expansion pad (208). The outer wall of the connecting pipe (205) is connected to a connecting pipe (206). The other end of the connecting pipe (206) passes through the right side of the placement platform (27) and is connected to an expansion pad (207). Multiple massage strips (209) are fixedly connected to adjacent sides of the expansion pad (207) and the expansion pad (208).

3. The multifunctional limb positioning and fixing frame according to claim 1, characterized in that: Hollow columns (19) are fixedly connected to the four corners of the top of the fixed base (1). Limiting rods (20) are slidably connected inside the hollow columns (19). The tops of the limiting rods (20) are fixedly connected to the bottom of the operating table (9).

4. The multifunctional limb positioning and fixing frame according to claim 1, characterized in that: A controller (21) is fixedly connected to the front side of the operating table (9). The controller (21) is electrically connected to the electric push rod (4), the servo motor (15) and the air pump (204).

5. The multifunctional limb positioning and fixing frame according to claim 1, characterized in that: Multiple rotating blocks (22) are fixedly connected to the left and right sides of the placement platform (27), and handles (23) are rotatably connected between adjacent rotating blocks (22).

6. The multifunctional limb positioning and fixing frame according to claim 1, characterized in that: The front and rear sides of the movable seat (11) are fixedly connected to support frames (24), and the tops of the two support frames (24) are fixedly connected to auxiliary trays (26).

7. The multifunctional limb positioning and fixing frame according to claim 1, characterized in that: The front and rear sides of the movable seat (11) are fixedly connected with reinforcing plates (25), and the bottom of the two reinforcing plates (25) are fixedly connected to the top of the support frame (24).

8. A multifunctional limb positioning and fixing frame according to claim 1, characterized in that: The bottom of each fixed base (1) is fixedly connected to multiple support plates (17), and the bottom front and rear sides of each of the multiple support plates (17) are fixedly connected to support columns (18).