Joint limiting device
By setting up a connecting frame, fixing arm and movable block between the limit sleeves of the orthopedic fixing device, and adjusting the angle by rotating the fixing handle, the problem that existing devices are difficult to adapt to joints at different angles is solved, and efficient and convenient limit fixing effect is achieved.
Patent Information
- Application Number
- CN202421688123.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-17
AI Technical Summary
Existing orthopedic fixation devices are difficult to effectively adapt to joint parts at different angles, making it difficult to fix the splints at limits and affecting the use effect.
A joint limiting device is designed, by providing a connecting frame, a fixed arm, a first support column and a movable block between the two limiting sleeves, and using a forward and reverse rotation fixing handle, the second support column drives the limiting sleeve to rotate, thereby adjusting the angle between the limiting sleeves.
It realizes the quick and accurate adjustment of the angle between the limit sleeves, which is suitable for joint angles of different placement angles. It is simple and convenient to operate, greatly improves the effectiveness of the device, and prevents unexpected activities through limit fixation.
Smart Images
Figure CN222917687U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of orthopedics, and particularly relates to a joint limiting device. Background Art
[0002] Orthopedics is one of the most common departments in major hospitals, mainly studying the anatomy, physiology and pathology of the musculoskeletal system, and using drugs, surgery and physical methods to maintain and develop the normal form and function of this system. With the development and progress of science and technology, orthopedics has made great progress in diagnosis and treatment. For example, in the case of human fractures, fixation devices are often used for fixation treatment.
[0003] At present, when fixing a fractured limb, two upper and lower semi-circular splints are mostly used to clamp and limit the limb. However, for the limb at the joint part, since the limb after joint rotation may be at a certain angle, and this angle is uncertain, it causes the splint to be difficult to effectively adapt to different-angle joints for limiting and fixing, greatly affecting the use effect of the device. Content of the Utility Model
[0004] The purpose of the utility model is to provide a joint limiting device. By arranging structures such as a connecting frame, a fixed arm, a first support column and a movable block between two limiting sleeves, and by rotating the fixed handle forward and backward, the second support column can drive one of the limiting sleeves to rotate, so that the angle between the two limiting sleeves can be quickly and accurately adjusted, so as to be applicable to joint-angle limbs at different placement angles. The operation is simple and convenient, greatly improving the use effect of the device, so as to solve the above deficiencies in the technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solution: A joint limiting device, comprising:
[0006] Two limiting sleeves, a first support column is fixed to the bottom side of one of the limiting sleeves, and a second support column is fixed to the bottom side of the other limiting sleeve. One end of the first support column close to the second support column is rotatably connected to a connecting frame through a rotating shaft, and the end of the connecting frame relative to the first support column is fixedly connected to the second support column;
[0007] A sliding cavity is opened at the bottom side of the first support column, and a movable block that can move is arranged inside the sliding cavity. The bottom end of the movable block is rotatably connected to a fixed arm through a rotating shaft, and the end of the fixed arm relative to the movable block is movably connected to the second support column through a rotating shaft. A driving component is arranged on the first support column, and the driving component is used to drive the movable block to move.
[0008] Preferably, the driving component includes a screw rod rotatably connected inside the sliding cavity through a bearing. One end of the screw rod extends outside the first support column and is connected to a fixed handle, and the movable block is threadedly connected to the outer wall of the screw rod.
[0009] Preferably, the limiting sleeve includes an upper guard plate and a lower guard plate. One ends of the upper guard plate and the lower guard plate are rotatably connected through a rotating shaft, and connecting plates are symmetrically fixed to the other ends of the upper guard plate and the lower guard plate. The two connecting plates are fixedly connected through bolts.
[0010] Preferably, sponge pads are arranged on the inner walls of the upper guard plate and the lower guard plate.
[0011] Preferably, the upper guard plate and the lower guard plate are both semi-circular.
[0012] Preferably, a fixed seat is fixed at one end of the bottom of the first support column close to the fixed handle. A spring facing the fixed handle is connected to the side wall of the fixed seat. A movable plate is fixed at one end of the spring relative to the fixed seat. A clamping plate is connected to one side of the movable plate relative to the spring. A plurality of clamping grooves matching the clamping plate are formed in an annular array on the outer wall of the fixed handle.
[0013] Preferably, a limiting column is connected through the spring and the fixed seat, and one end of the limiting column is fixedly connected to the movable plate.
[0014] In the above technical solution, the technical effects and advantages provided by the present utility model are as follows:
[0015] By arranging structures such as a connecting frame, a fixed arm, a first support column and a movable block between the two limiting sleeves, and by rotating the fixed handle forward and backward, the second support column can drive one of the limiting sleeves to rotate, so that the angle between the two limiting sleeves can be quickly and accurately adjusted to adapt to joint angle limbs with different placement angles. The operation is simple and convenient, greatly improving the use effect of the device;
[0016] By arranging a fixed seat, a movable plate, a spring and a clamping plate at the fixed handle, when in use, pull the movable plate to make the clamping plate withdraw from the clamping groove, and then the fixed handle can be rotated to adjust the angle between the two limiting sleeves. After adjustment, release the movable plate, and the clamping plate can be inserted into the clamping groove on the side of the fixed handle, so as to limit and fix the fixed handle, preventing the fixed handle from accidentally moving and causing relative rotation between the two limiting sleeves, thereby greatly ensuring the limiting and fixing effect of the joint. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.
[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0019] Figure 2 This is a schematic structural diagram after the angle adjustment of the two limit sleeves of the present utility model;
[0020] Figure 3 This is a three-dimensional structural diagram of the two limit sleeves of the present utility model when viewed from below;
[0021] Figure 4 This is a schematic structural diagram of the connection between the fixed seat and the movable plate of the present utility model.
[0022] Explanation of the reference numerals in the drawings:
[0023] 1. Limit sleeve; 101. Upper guard plate; 102. Lower guard plate; 2. Sponge pad; 3. Connecting plate; 4. First support column; 5. Second support column; 6. Connecting frame; 7. Fixed arm; 8. Sliding cavity; 9. Screw; 10. Movable block; 11. Fixed handle; 12. Fixed seat; 13. Spring; 14. Movable plate; 15. Clamping plate; 16. Limit column; 17. Card slot. Detailed implementation manners
[0024] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the present utility model will be further introduced in detail below in conjunction with the accompanying drawings.
[0025] The present utility model provides a kind of joint limiting device as Figures 1-4 shown, including:
[0026] Two limit sleeves 1, one of the bottom sides of the limit sleeve 1 is fixed with a first support column 4, and the bottom side of the other limit sleeve 1 is fixed with a second support column 5. One end of the first support column 4 close to the second support column 5 is rotatably connected to a connecting frame 6 through a rotating shaft, and the end of the connecting frame 6 relative to the first support column 4 is fixedly connected to the second support column 5;
[0027] The limit sleeve 1 includes an upper guard plate 101 and a lower guard plate 102. One ends of the upper guard plate 101 and the lower guard plate 102 are rotatably connected through a rotating shaft, and the other ends of the upper guard plate 101 and the lower guard plate 102 are symmetrically fixed with connecting plates 3, and the two connecting plates 3 are fixedly connected by bolts.
[0028] By the mutual rotation and cooperation of the upper guard plate 101 and the lower guard plate 102, the patient's limb can be clamped between the upper guard plate 101 and the lower guard plate 102, and then the two fitting connecting plates 3 are fixedly connected by bolts, so that the limb can be fixed in the limit sleeve 1. By respectively fixing the two limit sleeves 1 at both ends of the joint, the limb at the joint part can be fixed.
[0029] Sponge pads 2 are arranged on the inner walls of the upper guard plate 101 and the lower guard plate 102. The sponge pads 2 can protect the limb when the upper guard plate 101 and the lower guard plate 102 clamp the limb.
[0030] Both the upper guard plate 101 and the lower guard plate 102 are semi-circular.
[0031] A sliding cavity 8 is provided at the bottom side of the first support column 4. Inside the sliding cavity 8, a movable block 10 is provided. The bottom end of the movable block 10 is rotationally connected to a fixed arm 7 through a rotating shaft. One end of the fixed arm 7 relative to the movable block 10 is movably connected to the second support column 5 through a rotating shaft. A driving assembly is provided on the first support column 4, and the driving assembly is used to drive the movable block 10 to move.
[0032] The driving assembly includes a screw rod 9 rotatably connected inside the sliding cavity 8 through a bearing. One end of the screw rod 9 extends outside the first support column 4 and is connected to a fixed handle 11. The movable block 10 is threadedly engaged with the outer wall of the screw rod 9.
[0033] During use, the fixed handle 11 can be rotated to drive the screw rod 9 to rotate. Then, the screw rod 9 drives the movable block 10 to move inside the sliding cavity 8, causing the movable block 10 to drive the fixed arm 7 to rotate. After that, the fixed arm 7 drives the second support column 5 to move, enabling the second support column 5 to drive the connecting frame 6 to rotate on the first support column 4. Thus, the second support column 5 can drive one of the limit sleeves 1 to rotate. By rotating the fixed handle 11 forward and backward, the angle between the two limit sleeves 1 can be quickly and accurately adjusted to adapt to joint angle limbs at different placement angles. The operation is simple and convenient, greatly improving the use effect of the device.
[0034] A fixed seat 12 is fixed at one end of the bottom of the first support column 4 close to the fixed handle 11. The side wall of the fixed seat 12 is connected to a spring 13 facing the fixed handle 11. One end of the spring 13 relative to the fixed seat 12 is fixed to a movable plate 14. One side of the movable plate 14 relative to the spring 13 is connected to a clamping plate 15. A plurality of card slots 17 matching the clamping plate 15 are formed in an annular array on the outer wall of the fixed handle 11.
[0035] A limit post 16 is connected through the spring 13 and the fixed seat 12, and one end of the limit post 16 is fixedly connected to the movable plate 14. The movable plate 14 can be limited and guided through the limit post 16 to greatly enhance the stability of the movable plate 14 during movement.
[0036] Before rotating the fixed handle 11, the movable plate 14 can be pulled first to make the movable plate 14 act on the fixed seat 12 and compress the spring 13. Then, the movable plate 14 drives the clamping plate 15 to move, so that the clamping plate 15 withdraws from the clamping groove 17. Thus, the fixed handle 11 can be rotated to adjust the angle between the two limit sleeves 1. After the adjustment, when the movable plate 14 is released, under the rebound of the spring 13, the movable plate 14 can drive the clamping plate 15 to reset, so that the clamping plate 15 is inserted into the clamping groove 17 on the side of the fixed handle 11, thereby limiting and fixing the fixed handle 11 to prevent the relative rotation between the two limit sleeves 1 caused by the accidental movement of the fixed handle 11, which greatly ensures the limit and fixing effect of the joint.
[0037] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A joint limiting device, characterized in that: include: Two limiting sleeves (1), wherein a first support column (4) is fixed to the bottom side of one of the limiting sleeves (1), and a second support column (5) is fixed to the bottom side of the other limiting sleeve (1), and one end of the first support column (4) close to the second support column (5) is rotatably connected to a connecting frame (6) via a rotating shaft, and the connecting frame (6) is fixedly connected to the second support column (5) at one end relative to the first support column (4); A sliding cavity (8), wherein the sliding cavity (8) is opened on the bottom side of the first supporting column (4), and a movable movable block (10) is arranged inside the sliding cavity (8), and the bottom end of the movable block (10) is rotatably connected to a fixed arm (7) via a rotating shaft, and one end of the fixed arm (7) relative to the movable block (10) is movably connected to the second supporting column (5) via a rotating shaft, and a driving component is arranged on the first supporting column (4), and the driving component is used to drive the movable block (10) to move.
2. A joint limiting device according to claim 1, characterized in that: The driving assembly comprises a screw rod (9) rotatably connected to the inside of the sliding cavity (8) via a bearing, one end of the screw rod (9) extends to the outside of the first support column (4) and is connected to a fixed handle (11), and the movable block (10) is screwed to the outer wall of the screw rod (9) via a thread.
3. A joint limiting device according to claim 1, characterized in that: The limiting sleeve (1) comprises an upper guard plate (101) and a lower guard plate (102), one end of the upper guard plate (101) and the lower guard plate (102) are rotatably connected via a rotating shaft, and the other ends of the upper guard plate (101) and the lower guard plate (102) are symmetrically fixed with connecting plates (3), and the two connecting plates (3) are fixedly connected via bolts.
4. A joint limiting device according to claim 3, characterized in that: The inner walls of the upper guard plate (101) and the lower guard plate (102) are both provided with sponge pads (2).
5. A joint limiting device according to claim 3, characterized in that: The upper guard plate (101) and the lower guard plate (102) are both semicircular.
6. A joint limiting device according to claim 2, characterized in that: A fixing seat (12) is fixed to one end of the bottom of the first support column (4) close to the fixing handle (11); a spring (13) facing the fixing handle (11) is connected to the side wall of the fixing seat (12); a movable plate (14) is fixed to one end of the spring (13) relative to the fixing seat (12); a clamping plate (15) is connected to one side of the movable plate (14) relative to the spring (13); and a plurality of clamping grooves (17) matching the clamping plate (15) are provided on the outer wall of the fixing handle (11) in an annular array.
7. A joint limiting device according to claim 6, characterized in that: A limiting column (16) is connected through the spring (13) and the fixing seat (12), and one end of the limiting column (16) is fixedly connected to the movable plate (14).