Combined external fixation frame

Abstract

The utility model discloses a combined external fixing support relates to orthopedics technical field, including fixed ring, the upper portion of fixed ring is equipped with track groove, the vertical section of track groove is convex letter shape structure, the inboard wall of both sides of track groove all is equipped with the fixed hole of circular array distribution, the sliding of track groove cavity has a plurality of sliding blocks, the inside of sliding block is equipped with pin groove, the two connecting plates of pin groove sliding connection have, and the spring is arranged between two connecting plates, this combined external fixing support, through setting track groove, and set up the sliding block of sliding on track groove, utilize the cooperation of pin in sliding block and the fixed hole on fixed ring, can therefore quick release the locked state of sliding block, and quick lock sliding block, therefore make integral type outer frame and four prismatic post etc.

Description

Technical Field

[0001] This utility model relates to the field of orthopedic technology, specifically to a combined external fixation bracket. Background Technology

[0002] Orthopedic external fixators are medical devices used for fracture treatment and skeletal reconstruction. They are made of metal and typically consist of an external fixator and bone pins. Bone pins are small metal needles or fixators that further secure the fractured bone ends. They are inserted into the bone body through punctures in the skin and muscles to increase support and stability. The primary function of an external fixator is to stabilize the fractured bone ends in the correct position, promoting fracture healing. It provides immediate support and stability, effectively reducing the risk of fracture fragment displacement and early joint stiffening.

[0003] Currently, when using combined external fixation devices to fix bone pins, it is necessary to use a combination of structures such as an integrated external frame, four-sided columns, and fixation rings. The mutual fixation of each structure with the fixation ring requires the use of bolts and nuts. Therefore, when adjusting the position of the various structures such as the integrated external frame, it is necessary to tighten the bolts or nuts. Tightening the bolts is very time-consuming and laborious, which affects the rapid adjustment and fixation of the various structures of the combined external fixation device, thereby reducing the ease of use of the combined external fixation device. Utility Model Content

[0004] The purpose of this invention is to provide a modular external fixation bracket to solve the problem of the cumbersome use of the current modular external fixation brackets in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a combined external fixing bracket, including a fixing ring, a track groove on the upper part of the fixing ring, the vertical cross-section of the track groove being a convex shape, fixing holes arranged in a circular array on both inner walls of the track groove, multiple sliders sliding within the cavity of the track groove, pin grooves inside the sliders, two connecting plates slidably connected within the pin grooves, a spring between the two connecting plates, and pin rods and pressing rods fixedly connected to opposite sides of the two connecting plates, pin holes slidably disposed with the pin rods and pressing holes slidably disposed with the pressing rods on the inner wall of the pin grooves, the pin head of the pin rod being adapted to the cavity of the fixing hole, and the length of the pressing rod being longer than the length of the pin rod.

[0006] Preferably, mounting grooves are formed on the inner walls of both sides of the pin groove, and a bidirectional screw is rotatably connected between the inner walls of the two mounting grooves. Two fixing blocks are symmetrically arranged on the outer threads of the bidirectional screw, and the two fixing blocks are respectively adapted to the cavities of the two mounting grooves. The bidirectional screw includes two symmetrically arranged external threads, and the two fixing blocks are respectively threaded onto the two external threads of the bidirectional screw.

[0007] Preferably, a turntable is rotatably connected to the upper part of the slider, and a fixing bolt is fixedly connected to the axis of the upper part of the turntable.

[0008] Preferably, each turntable is provided with an integrated outer frame, a four-sided column and multiple short connecting rods above it, and the bottom of the integrated outer frame, the four-sided column and the multiple short connecting rods are provided with threaded grooves that are threaded with the fixing bolts.

[0009] Preferably, the integrated outer frame has a bottom pad, and eccentric shafts and main bolts are respectively provided on both sides of the integrated outer frame. The integrated outer frame has a spherical surface and a fixed end, and a fixing pin clip is provided on the upper part of the integrated outer frame.

[0010] Preferably, a ring needle clamp is provided on one side of the quadrangular prism, and bone needles are provided inside both the ring needle clamp and the fixing needle clamp.

[0011] Preferably, the bone needle on the fixing needle clamp and the short connecting rod are both equipped with clamps, and a long connecting rod is provided between the two clamps.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This application sets up a track groove and a slider that can slide on the track groove. By using the pin in the slider to cooperate with the fixing hole on the fixing ring, the slider can be quickly released from its locked state and quickly locked. Therefore, the integrated external frame and four-sided column and other structures can be quickly installed and their positions can be quickly adjusted, thereby effectively improving the practicality and ease of use of the combined external fixing bracket.

[0014] 2. This application solves the problems of low flexibility in joint positioning of integrated external frames and low stability of the main frame of combined external frames by setting up integrated external frames, fixing rings and four-sided columns and other related structures. At the same time, it avoids the problems of complex structure and operation of the main frame positioning of combined external frames. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the overall combined external fixing bracket of this utility model;

[0016] Figure 2 This is a three-dimensional schematic diagram of the fixing ring of the combined external fixing bracket of this utility model;

[0017] Figure 3 This is a three-dimensional front view sectional view of the slider of the combined external fixing bracket of this utility model;

[0018] Figure 4 This is a three-dimensional side view of the slider of the combined external fixing bracket of this utility model.

[0019] The following are the labels in the diagram: 1. Integrated outer frame; 2. Bone pin; 3. Fixing ring; 4. Fixing pin clamp; 5. Spherical surface; 6. Fixing end; 7. Eccentric shaft; 8. Fixing hole; 9. Fixing bolt; 10. Pad; 11. Ring pin clamp; 12. Four-sided column; 13. Long connecting rod; 14. Short connecting rod; 15. Main bolt; 16. Clamp; 17. Track groove; 18. Turntable; 19. Slider; 20. Pin groove; 21. Connecting plate; 22. Pin rod; 23. Pressing rod; 24. Fixing block; 25. Two-way screw. Detailed Implementation

[0020] 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.

[0021] Example: Figures 1-4 As shown, this utility model provides a technical solution for a combined external fixing bracket, including a fixing ring 3. The upper part of the fixing ring 3 has a track groove 17. The vertical cross section of the track groove 17 is a convex structure. Fixing holes 8 are arranged in a circular array on both sides of the inner wall of the track groove 17. Multiple sliders 19 slide in the cavity of the track groove 17. The sliders 19 have pin grooves 20 inside. Two connecting plates 21 are slidably connected in the pin grooves 20. A spring is provided between the two connecting plates 21. A pin rod 22 and a pressing rod 23 are fixedly connected to the opposite side of the two connecting plates 21. A pin hole is provided on the inner wall of the pin groove 20 for sliding with the pin rod 22, and a pressing hole is provided for sliding with the pressing rod 23. The pin head of the pin rod 22 is adapted to the cavity of the fixing hole 8. The length of the pressing rod 23 is longer than the length of the pin rod 22.

[0022] like Figure 1 , Figure 3 and Figure 4 As shown, mounting grooves are formed on both inner walls of the pin groove 20. A bidirectional screw 25 is rotatably connected between the inner walls of the two mounting grooves. Two fixing blocks 24 are symmetrically arranged on the outer threads of the bidirectional screw 25. The two fixing blocks 24 are respectively adapted to the cavities of the two mounting grooves. The bidirectional screw 25 includes two symmetrically arranged external threads. The two fixing blocks 24 are respectively threaded onto the two external threads in the bidirectional screw 25.

[0023] The integrated outer frame 1, the four-sided column 12 and the multiple short connecting rods 14 are all threaded to each fixing bolt 9 through the opened threaded groove, so that the bottom of the integrated outer frame 1, the four-sided column 12 and the multiple short connecting rods 14 are all equipped with sliders 19.

[0024] When the position of slider 19 needs to be adjusted, simply press the two pressing rods 23 on slider 19. The pressing rods 23 will then use the connecting plate 21 to drive the pin 22 into the cavity of the pin groove 20, thus disengaging the pin 22 from the cavity of the corresponding fixing hole 8. At this time, the locked state of slider 19 is released, and the integrated outer frame 1, the four-sided column 12 or multiple short connecting rods 14 can be slid in the cavity of the track groove 17 according to the actual needs of the site. After the position is moved, the pressing rods 23 are released, and the pin 22 slides out of the pin hole using the spring part and is inserted into the corresponding fixing hole 8, thereby completing the quick fixing of slider 19.

[0025] By rotating the bidirectional screw 25, the two fixing blocks 24 are brought closer or further apart, and the fixing blocks 24 slide from the mounting groove cavity into the pin groove 20 cavity. The fixing blocks 24 are used to hold the two connecting plates 21 together, thereby further improving the stability of the slider 19 fixed to the fixing ring 3.

[0026] like Figure 3 and Figure 4 As shown, a turntable 18 is rotatably connected to the upper part of the slider 19, and a fixing bolt 9 is fixedly connected to the axis of the upper part of the turntable 18.

[0027] like Figure 1 , Figure 3 and Figure 4 As shown, each turntable 18 is provided with an integrated outer frame 1, a four-sided column 12 and multiple short connecting rods 14 on its upper part. The bottom of the integrated outer frame 1, the four-sided column 12 and the multiple short connecting rods 14 are all provided with threaded grooves that are threaded with the fixing bolts 9.

[0028] like Figure 1 As shown, the integrated outer frame 1 has a bottom pad 10, and the two sides of the integrated outer frame 1 are respectively provided with an eccentric shaft 7 and a main bolt 15. The integrated outer frame 1 is provided with a spherical surface 5 and a fixed end 6, and the upper part of the integrated outer frame 1 is provided with a fixing pin clip 4.

[0029] like Figure 1 As shown, a ring needle clamp 11 is provided on one side of the quadrangular column 12, and bone needles 2 are provided in both the ring needle clamp 11 and the fixed needle clamp 4.

[0030] like Figure 1 As shown, clamps 16 are provided on both the bone needle 2 on the fixed needle clamp 4 and the short connecting rod 14, and a long connecting rod 13 is provided between the two clamps 16.

[0031] The bone shaft is fixed in position using a universal one-piece frame 1 and bone pins 2. The joint bones are fixed in position using a universal fixation ring 3 and bone pins 2.

[0032] The integrated outer frame 1 has fixed pin clips 4 and fixed ends 6 on both sides, which can freely rotate around the spherical surface 5 of the integrated outer frame 1 to adjust the angle, and the degree of freedom is locked by rotating the eccentric shaft 7 of the main body.

[0033] The fixing pin clip 4 of the integrated outer frame 1 is used to fix the bone pin 2 in the position of the bone shaft.

[0034] The fixing ring 3 can be fixed with bone pins 2 by means of the ring pin clamp 11. The fixing ring 3 can also be fixed with bone pins 2 outside the plane of the fixing ring 3 by means of the ring pin clamp 11 and the four-sided post 12.

[0035] The fixing ring 3 is fixed to the integrated frame 1 by a long connecting rod 13. A short connecting rod 14 is axially fixed to the fixing hole 8 of the fixing ring 3. One end of the long connecting rod 13 is fixed to the short connecting rod 14, and the other end is fixed to the outer end of the bone pin 2 installed and fixed on the integrated frame 1. This is accomplished by two sets of clamps 16. The clamps 16 can be rotated and locked in three directions.

[0036] The fixing ring 3 is fixed to the integrated outer frame 1 by a set including a short connecting rod 14, a long connecting rod 13 and two sets of clamps 16, or by multiple sets including a short connecting rod 14, a long connecting rod 13 and two sets of clamps 16.

[0037] The integrated outer frame 1 is adjustable along the main body axis and locked by the main body bolts 15.

[0038] 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. A combined external fixation bracket, including a fixing ring (3), characterized in that: The upper part of the fixed ring (3) is provided with a track groove (17). The inner walls on both sides of the track groove (17) are provided with fixed holes (8) arranged in a circular array. Multiple sliders (19) slide in the cavity of the track groove (17). The sliders (19) are provided with pin grooves (20). Two connecting plates (21) are slidably connected in the pin grooves (20). A spring is provided between the two connecting plates (21). A pin rod (22) and a pressing rod (23) are fixedly connected on opposite sides of the two connecting plates (21). The inner wall of the pin grooves (20) is provided with pin holes that slide with the pin rods (22) and pressing holes that slide with the pressing rods (23).

2. The combined external fixation bracket according to claim 1, characterized in that: The inner walls on both sides of the pin groove (20) are formed with mounting grooves. A bidirectional screw (25) is rotatably connected between the inner walls of the two mounting grooves. Two fixing blocks (24) are symmetrically arranged on the outer side of the bidirectional screw (25). The two fixing blocks (24) are respectively adapted to the cavities of the two mounting grooves.

3. The combined external fixation bracket according to claim 2, characterized in that: The upper part of the slider (19) is rotatably connected to a turntable (18), and a fixing bolt (9) is fixedly connected to the axis of the upper part of the turntable (18).

4. The combined external fixation bracket according to claim 3, characterized in that: Each of the turntables (18) is provided with an integrated outer frame (1), a four-sided column (12) and a number of short connecting rods (14) on its upper side. The bottom of the integrated outer frame (1), the four-sided column (12) and the number of short connecting rods (14) are provided with threaded grooves that are threaded to the fixing bolts (9).

5. The combined external fixation bracket according to claim 4, characterized in that: The integrated outer frame (1) has a bottom pad (10), and the two sides of the integrated outer frame (1) are respectively provided with an eccentric shaft (7) and a main bolt (15). The integrated outer frame (1) is provided with a spherical surface (5) and a fixed end (6), and the upper part of the integrated outer frame (1) is provided with a fixing pin clip (4).

6. The combined external fixation bracket according to claim 5, characterized in that: A ring needle clamp (11) is provided on one side of the quadrangular prism (12), and bone needles (2) are provided in both the ring needle clamp (11) and the fixed needle clamp (4).

7. The combined external fixation bracket according to claim 6, characterized in that: The bone needle (2) on the fixed needle clamp (4) and the short connecting rod (14) are both equipped with clamps (16), and a long connecting rod (13) is provided between the two clamps (16).

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