Orthopedic multi-structure external fixation support

Abstract

This utility model discloses an orthopedic multi-structure external fixator, relating to the field of medical device technology. It includes a clamping tube mechanism and a ball-and-socket clamping wing mechanism. The ball-and-socket clamping wing mechanism is fixed to the clamping tube mechanism by wing bolts. The clamping tube mechanism includes a knurled nut. An upper clamping tube piece is sleeved on the outer surface of the lower screw of the knurled nut, and a lower clamping tube piece is sleeved on the outer surface of the lower screw of the knurled nut. The lower screw of the knurled nut passes through the upper and lower clamping tube pieces. A rotating shaft is threadedly connected to the lower screw of the knurled nut, and a steering block is fixedly connected to one side of the rotating shaft. The two ball-and-socket clamping wing mechanisms are fixed to the clamping tube mechanism by two wing bolts, and their directions are adjustable, realizing the multi-structure function of the same external fixator. Thus, a multi-structure external fixator can be formed, allowing adjustment of the bone pin position to meet different needs and adapt to the relative angle and position of fracture deformities. The structure is simple and easy to operate.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an orthopedic multi-structure external fixation bracket. Background Technology

[0002] When a person suffers a high-energy fracture of the upper or lower limb, such as in a war or car accident, especially a severe comminuted fracture, doctors need to quickly and accurately fix the fracture temporarily to prevent open injury. Orthopedic external fixation devices are one of the medical devices commonly used in orthopedic clinical practice.

[0003] Currently, most commonly used orthopedic external fixators on the market are linear configurations composed of multiple pin clips and rods, which generally have the following drawbacks: 1. The distribution of bone pins is generally straight, resulting in an unstable configuration; 2. Bone pins need to penetrate the bone to maintain mechanical stability, which may contaminate the medullary cavity. To address these issues, we provide an orthopedic multi-structure external fixator. Utility Model Content

[0004] The purpose of this invention is to provide a multi-structure external fixation brace for orthopedics to solve the problems mentioned in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an orthopedic multi-structure external fixation bracket, including a tube clamping mechanism and a ball clamping wing mechanism. The ball clamping wing mechanism is fixed to the tube clamping mechanism by wing bolts. The tube clamping mechanism includes a knurled nut. An upper tube clamping plate is sleeved on the outer surface of the lower surface screw of the knurled nut. A lower tube clamping plate is sleeved on the outer surface of the lower surface screw of the knurled nut. The lower surface screw of the knurled nut passes through the upper and lower tube clamping plates. A rotating shaft is threadedly connected to the lower surface screw of the knurled nut. A steering block is fixedly connected to one side of the rotating shaft.

[0006] Preferably, the knurled nut has a round hole stud inside, which penetrates the knurled nut and can be fixed by the round hole stud inside the knurled nut.

[0007] Preferably, an eccentric rotor is provided on one side of the knurled nut, and an arc pad is fixedly connected to the lower surface of the knurled nut. The eccentric rotor is installed inside the knurled nut, and the knurled nut can be restricted by the eccentric rotor.

[0008] Preferably, a spring is fixedly connected to the lower surface of the upper clamping tube piece, and the end of the spring away from the upper clamping tube piece is fixedly connected to the upper surface of the lower clamping tube piece. The inside of the spring is threaded into the lower surface of the knurled nut. The spring is installed between the lower clamping tube piece and the clamping tube support. After the lower clamping tube piece and the upper clamping tube piece are fixed, the lower clamping tube piece can be prevented from becoming loose.

[0009] Preferably, a clamping tube support is sleeved on the lower surface of the knurled nut and the outer surface of the screw. A rotating shaft is rotatably connected inside the clamping tube support. The outer surface of the steering block is threadedly connected to the wing bolt. The rotating shaft is installed on the clamping tube support. The wing bolt can install the ball clamping wing mechanism on the steering block to play a fixing role.

[0010] Preferably, the ball clamping wing mechanism includes a ball clamping wing, and a ball clamp is provided on one side of the ball clamping wing. The ball clamping wing provided on the ball clamping wing can be adjusted according to the location of the patient's injury.

[0011] Preferably, a ball clamp cover is snapped onto the lower surface of the ball clamp wing, and a cover bolt is threaded onto the lower surface of the ball clamp wing. The cover bolt passes through the ball clamp cover and is rotatably connected to the ball clamp cover. The ball clamp cover can be installed on the ball clamp wing through the cover bolt, and the ball clamp cover plays a protective role.

[0012] Preferably, the ball clamping wing mechanism is fixed to the tube clamping mechanism by wing bolts. The direction in which the ball clamping wing is fixed to the tube clamping mechanism is adjustable. The ball clamping wing can be installed on the steering block by the wing bolts, and the direction of the ball clamping wing can be adjusted.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The orthopedic multi-structure external fixator of this application can quickly and accurately temporarily fix fractures, prevent open injuries, and has a simple structure, quick installation, versatile configuration, stable structure, and convenient adjustment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an orthopedic multi-structure external fixation bracket according to the present invention;

[0016] Figure 2 This is a front view of an orthopedic multi-structure external fixation bracket according to this utility model;

[0017] Figure 3 This is a schematic diagram of the clamping mechanism of a multi-structure external fixation bracket for orthopedics according to this utility model;

[0018] Figure 4 This is a schematic diagram of the ball clamp wing mechanism of a multi-structure external fixation bracket for orthopedics according to this utility model;

[0019] Figure 5 This is a folded schematic diagram of a multi-structure external fixation bracket for orthopedics according to this utility model;

[0020] Figure 6 This is a schematic diagram of the eccentric rotor marking and fixing of an orthopedic multi-structure external fixation bracket according to this utility model;

[0021] Figure 7This is a schematic diagram of the lower clamping tube and clamping support type meshing structure of an orthopedic multi-structure external fixator according to this utility model;

[0022] Figure 8 This is a schematic diagram of the internal thread structure of the rotating shaft of an orthopedic multi-structure external fixator according to this utility model;

[0023] Figure 9 This is a schematic diagram of the ±15° angle adjustment range of the ball clamp of a multi-structure external fixation bracket for orthopedics according to this utility model.

[0024] The following are the labels in the diagram: 1. Tube clamping mechanism; 11. Round hole stud; 12. Knurled nut; 13. Eccentric rotor; 14. Arc washer; 15. Upper tube clamping plate; 16. Lower tube clamping plate; 17. Spring; 18. Tube clamping support; 19. Rotating shaft; 110. Wing bolt; 111. Steering block;

[0025] 2. Ball clamping wing mechanism; 21. Ball clamping wing; 22. Ball clamp; 23. Ball clamping cover; 24. Cover bolt. Detailed Implementation

[0026] 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.

[0027] like Figure 1 As shown, this utility model provides a technical solution for an orthopedic multi-structure external fixation bracket, including a clamping tube mechanism 1 and a ball clamping wing mechanism 2. The ball clamping wing mechanism 2 is fixed to the clamping tube mechanism 1 by wing bolts 110. The direction of the ball clamping wing 21 fixed to the clamping tube mechanism 1 is adjustable. The ball clamping wing mechanisms 2 on both sides can be installed on the steering block 111 by the wing bolts 110, which can fix the patient's hand.

[0028] like Figure 4 and Figure 9 As shown, the ball clamping wing mechanism 2 includes a ball clamping wing 21. A ball clamping cover 23 is snapped onto the lower surface of the ball clamping wing 21. A cover bolt 24 is threaded onto the lower surface of the ball clamping wing 21. The cover bolt 24 passes through the ball clamping cover 23 and is rotatably connected to the ball clamping cover 23. The cover 23 is mounted on the cover 21. The cover 23 can be fixed by the cover 24 to prevent the cover 23 from falling off during use. A ball clamp 22 is provided on one side of the ball clamping wing 21. After the ball clamp 22 clamps the bone needle, it has an angle adjustment range of ±15°.

[0029] like Figure 6 , Figure 7 and Figure 8As shown, the ball clamping wing mechanism 2 is fixed to the tube clamping mechanism 1 by the wing bolt 110. The tube clamping mechanism 1 includes a knurled nut 12. The lower surface of the knurled nut 12 is fitted with a tube clamping support 18. The tube clamping support 18 is rotatably connected to a rotating shaft 19. The outer surface of the steering block 111 is threadedly connected to the wing bolt 110. The lower tube clamping plate 16 and the tube clamping support 18 have a meshing structure to prevent slippage and loosening after final fixing.

[0030] like Figure 2 and Figure 5 As shown, an eccentric rotor 13 is provided on one side of the knurled nut 12. An arc-shaped pad 14 is fixedly connected to the lower surface of the knurled nut 12. The eccentric rotor 13 is installed inside the knurled nut 12 to provide a fixing function. The arc-shaped pad 14 is installed on the knurled nut 12 to provide a buffer function and prevent wear under repeated pressure. A round hole stud 11 is provided inside the knurled nut 12, and the round hole stud 11 penetrates the knurled nut 12. The knurled nut 12 has an anti-rotation groove on its outer surface for manual pre-locking of the multi-structure external fixing bracket. To finally fix the multi-structure external fixing bracket, use a 5mm Allen wrench and turn clockwise according to the locking mark of the eccentric rotor 13 to complete the final fixation. The locking is firm, convenient and quick.

[0031] like Figure 3 As shown, an upper clamping tube 15 is sleeved on the outer surface of the screw on the lower surface of the knurled nut 12. A spring 17 is fixedly connected to the lower surface of the upper clamping tube 15. The end of the spring 17 away from the upper clamping tube 15 is fixedly connected to the upper surface of the lower clamping tube 16. The inside of the spring 17 is sleeved with the screw on the lower surface of the knurled nut 12. The spring 17 is installed between the upper clamping tube 15 and the lower clamping tube 16 to support them and prevent the upper clamping tube 15 and the lower clamping tube 16 from loosening during use.

[0032] The lower surface of the knurled nut 12 is fitted with a lower clamping tube 16. The lower surface of the knurled nut 12 is threaded through the upper clamping tube 15 and the lower clamping tube 16. The lower surface of the knurled nut 12 is threadedly connected to a rotating shaft 19. A steering block 111 is fixedly connected to one side of the rotating shaft 19. The rotating shaft 19 has an internal thread that is threadedly engaged with the round hole stud 11. The included angle of the ball clamping wing mechanisms 2 on both sides is 80-120°. Thus, it can quickly and accurately fix fractures temporarily, prevent open injuries, and has a simple structure, quick installation, versatile configuration, stable structure, and convenient adjustment.

[0033] Working principle: When it is necessary to fix the patient's hand, the staff can first assemble the device. First, install the upper clamping tube 15 and 16 and the lower clamping tube 16 on the screw set on the eccentric rotor 13. Then, put the lower clamping tube 16 on the screw set on the eccentric rotor 13 and then put on the spring 17. Then connect the screw to the rotating shaft 19. By turning the eccentric rotor 13, the lower clamping tube 16 can be brought into contact with the clamping tube support 18. The anti-slip grooves set on the lower clamping tube 16 and the clamping tube support 18 can prevent loosening during use and play a locking role. The ball clamping wing mechanism 2 can be fixed on the steering block 111 by the wing bolt 110. It can be adjusted according to the injured part of the patient. The clamping position of the upper clamping tube 15 and the lower clamping tube 16 can be adjusted according to the patient's arm. It can quickly and accurately fix fractures temporarily, prevent open injuries, and has a simple structure, quick installation, versatile configuration, stable structure, and convenient adjustment.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An orthopedic multi-structure external fixator, characterized in that, The device includes a tube clamping mechanism (1) and a ball clamping wing mechanism (2). The ball clamping wing mechanism (2) is fixed to the tube clamping mechanism (1) by a wing bolt (110). The tube clamping mechanism (1) includes a knurled nut (12). An upper tube clamping plate (15) is sleeved on the outer surface of the lower surface screw of the knurled nut (12). A lower tube clamping plate (16) is sleeved on the outer surface of the lower surface screw of the knurled nut (12). The lower surface screw of the knurled nut (12) passes through the upper tube clamping plate (15) and the lower tube clamping plate (16). A rotating shaft (19) is threadedly connected to the lower surface screw of the knurled nut (12). A steering block (111) is fixedly connected to one side of the rotating shaft (19).

2. The orthopedic multi-structure external fixator according to claim 1, characterized in that: The inside of the knurled nut (12) is provided with a round hole stud (11), which penetrates the knurled nut (12).

3. The orthopedic multi-structure external fixator according to claim 2, characterized in that: An eccentric rotor (13) is provided on one side of the knurled nut (12), and an arc pad (14) is fixedly connected to the lower surface of the knurled nut (12).

4. The orthopedic multi-structure external fixator according to claim 1, characterized in that: A spring (17) is fixedly connected to the lower surface of the upper clamping tube (15). The end of the spring (17) away from the upper clamping tube (15) is fixedly connected to the upper surface of the lower clamping tube (16). The interior of the spring (17) is threaded into the lower surface of the knurled nut (12).

5. The orthopedic multi-structure external fixator according to claim 4, characterized in that: The lower surface of the knurled nut (12) is fitted with a tube clamp (18) on the outer surface of the screw. The tube clamp (18) is rotatably connected to a rotating shaft (19). The outer surface of the steering block (111) is threadedly connected to the wing bolt (110).

6. The orthopedic multi-structure external fixator according to claim 1, characterized in that: The ball clamping wing mechanism (2) includes a ball clamping wing (21), and a ball clamp (22) is provided on one side of the ball clamping wing (21).

7. The orthopedic multi-structure external fixator according to claim 6, characterized in that: The lower surface of the ball clamp wing (21) is fitted with a ball clamp cover (23), and the lower surface of the ball clamp wing (21) is threaded with a cover bolt (24). The cover bolt (24) passes through the ball clamp cover (23) and is rotatably connected to the ball clamp cover (23).

8. The orthopedic multi-structure external fixator according to claim 1, characterized in that: The ball clamping wing mechanism (2) is fixed to the tube clamping mechanism (1) by wing bolts (110), and the direction of the ball clamping wing (21) fixed to the tube clamping mechanism (1) is adjustable.

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