External fixation frame for bone fractures

Abstract

The utility model discloses a kind of external fixation support for fracture, it is related to fixing support technical field, including fixed ring and fixed needle, active adjusting rod and driven adjusting rod are provided between adjacent fixed ring, the side end surface of fixed ring is provided with sliding assembly, fixed needle is fixedly installed on fixed ring, active adjusting rod includes first sleeve, adjusting screw rod and adjusting turntable, adjusting turntable is installed at the top of first sleeve and is rotationally connected with it, the center of adjusting turntable is provided with the screw hole matched with adjusting screw rod, adjusting screw rod is inserted into screw hole and is threadedly connected with it, driven adjusting rod includes sliding pole and sliding sleeve, sliding pole is inserted into sliding sleeve and is slidably connected with it.The utility model has the advantages of fast and accurate adjustment, simplifying installation steps, improving stability and security, solves the problem of inconvenient adjustment, easy to loosen and lack of flexibility of traditional external fixation support.

Description

Technical Field

[0001] This utility model relates to the field of fixation bracket technology, specifically to an external fixation bracket for fractures. Background Technology

[0002] External fixation is a commonly used treatment method for fractures, especially for open fractures, complex fractures, or infected fractures. Traditional external fixation mainly maintains bone alignment and stability by using fixation pins that pass through the bone and connect to external metal rods. However, with the development of medical technology and the increasing demands of patients for quality of life, some limitations of traditional external fixation have gradually become apparent.

[0003] First, traditional external fixation brackets usually require tools to adjust their length, which increases the difficulty and time cost of operation. During the adjustment process, in order to ensure the fixation effect, a large number of bolts are often needed for fixing, which makes the installation process cumbersome and prone to loosening, affecting the stability and safety of the fixation.

[0004] Secondly, for patients who are bedridden for extended periods, traditional external fixators lack flexibility and struggle to meet their needs for changing positions in daily life. For example, when patients want to sit up or get out of bed, the presence of the fixation brace forces them to raise their legs, causing significant inconvenience and increasing the risk of secondary injury. Therefore, a fracture external fixator is needed to address these issues. Utility Model Content

[0005] The purpose of this invention is to provide an external fixation bracket for fractures, which has the advantages of quick and precise adjustment, simplified installation steps, and improved stability and safety, and solves the problems of inconvenient adjustment, easy loosening and lack of flexibility of traditional external fixation brackets.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an external fixation bracket for fractures, comprising a fixation ring and a fixation pin, wherein an active adjustment rod and a driven adjustment rod are provided between adjacent fixation rings, and a sliding component is provided on the side end face of the fixation ring;

[0007] The fixing pin is fixedly installed on the fixing ring. The active adjusting rod includes a first sleeve, an adjusting screw, and an adjusting turntable. The adjusting turntable is installed on the top of the first sleeve and rotatably connected to it. The center of the adjusting turntable is provided with a screw hole that cooperates with the adjusting screw. The adjusting screw is inserted into the screw hole and threadedly connected to it. The adjusting screw and the first sleeve are fixedly installed on the fixing ring by bolts. The driven adjusting rod includes a sliding rod and a sliding sleeve. The sliding rod is inserted into the sliding sleeve and slidably connected to it.

[0008] As a preferred embodiment of the external fixation bracket for fractures according to this utility model, the upper end surface of the adjusting turntable is provided with a vertical plate, and the number of the vertical plates is two, with the two sets of vertical plates mirror-mounted on the upper end surface of the adjusting turntable.

[0009] As a preferred embodiment of the external fixation bracket for fractures according to this utility model, the side end face of the sliding sleeve is provided with a threaded sleeve that communicates with it, and the threaded sleeve is provided with a threaded adjustment knob.

[0010] As a preferred embodiment of the external fixation bracket for fractures according to this utility model, limit plates are provided at both the upper and lower ends of the side end faces of the active adjustment rod and the driven adjustment rod.

[0011] As a preferred embodiment of the external fixation bracket for fractures according to this utility model, the sliding assembly includes a fixation frame, a fixing bolt, and a universal ball bearing. The fixation frame is fixedly mounted on a fixing ring by the fixing bolt, and the universal ball bearing is mounted on the fixation frame.

[0012] As a preferred embodiment of the external fixation bracket for fractures according to this utility model, the fixation bracket has an arc-shaped structure, and the number of universal ball bearings is two, with the two sets of universal ball bearings respectively installed on the left and right sides of the fixation bracket.

[0013] As a preferred embodiment of the external fixation bracket for fractures according to this utility model, the fixation ring is composed of two sets of arc-shaped plates, and the arc-shaped plates are evenly provided with mounting holes. The two sets of arc-shaped plates are fixed by bolts.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model, through the design of the adjustment turntable and upright plate of the active adjustment rod, allows users to manually rotate the turntable to drive the adjustment screw, achieving rapid and precise adjustment of the bracket length without relying on tools; the sliding rod and sliding sleeve of the driven adjustment rod cooperate with the adjustment knob locking structure to quickly fix the sliding parts after adjustment. Combined with the constraint effect of the limiting plate on the fixing ring, it reduces the number of bolts required by traditional brackets, solving the problems of cumbersome adjustment steps and easy loosening of traditional external fixed brackets, which not only improves the operating efficiency, but also ensures the structural stability after fixing.

[0016] 2. The sliding component of this utility model adopts a combination design of arc-shaped fixed frame and double-sided universal ball bearings, which allows the patient's legs to move smoothly along the sliding trajectory of the ball bearings when moving on the bed surface. The patient can adjust their position without having to lift their legs. This solves the problem of difficulty in movement caused by the rigidity of the fixed frame when the patient gets out of bed or changes position, and reduces the risk of secondary injury. At the same time, the symmetrical support of the double-sided ball bearings prevents the legs from swinging, thus balancing the flexibility and stability of movement. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the active adjustment rod structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the driven adjusting rod structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the sliding component structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the fixing ring structure of this utility model.

[0022] In the diagram: 1. Fixing ring; 101. Arc plate; 1011. Mounting hole; 2. Fixing pin; 3. Active adjusting rod; 301. First sleeve; 3011. Limiting plate; 302. Adjusting screw; 303. Adjusting turntable; 3031. Screw hole; 3032. Vertical plate; 4. Driven adjusting rod; 401. Sliding sleeve; 4011. Sliding hole; 4012. Threaded sleeve; 402. Sliding rod; 403. Adjusting knob; 5. Sliding assembly; 501. Fixing bracket; 502. Fixing bolt; 503. Universal ball bearing. Detailed Implementation

[0023] Please see Figures 1-4 An external fixation bracket for fractures includes a fixation ring 1 and a fixation pin 2. An active adjustment rod 3 and a driven adjustment rod 4 are provided between adjacent fixation rings 1. A sliding component 5 is provided on the side end face of the fixation ring 1.

[0024] The fixing pin 2 is fixedly installed on the fixing ring 1. The active adjusting rod 3 includes a first sleeve 301, an adjusting screw 302, and an adjusting turntable 303. The adjusting turntable 303 is installed on the top of the first sleeve 301 and rotatably connected to it. The center of the adjusting turntable 303 is provided with a screw hole 3031 that cooperates with the adjusting screw 302. The adjusting screw 302 is inserted into the screw hole 3031 and threadedly connected to it. The adjusting screw 302 and the first sleeve 301 are fixedly installed on the fixing ring 1 by bolts. The driven adjusting rod 4 includes a sliding rod 402 and a sliding sleeve 401. The sliding rod 402 is inserted into the sliding hole 4011 at the top of the sliding sleeve 401 and slidably connected to it.

[0025] Furthermore, the upper surface of the adjusting turntable 303 is provided with two vertical plates 3032, and the two sets of vertical plates 3032 are mirror images mounted on the upper surface of the adjusting turntable 303.

[0026] The adjustment dial 303 can be turned by hand using the upright plate 3032 without the need for external tools, which facilitates quick adjustment of the length of the active adjustment lever 3, improving the convenience of operation and adjustment efficiency.

[0027] Furthermore, a threaded sleeve 4012 is provided on the side end face of the sliding sleeve 401, and an adjusting knob 403 with threaded connection is provided inside the threaded sleeve 4012.

[0028] By rotating the adjustment knob 403, it moves into the threaded sleeve 4012, thereby pressing the slide rod 402 inside the sliding sleeve 401, quickly locking the slide rod 402 and the sliding sleeve 401, preventing the driven adjustment rod 4 from sliding during the wearing process and affecting the fixing effect.

[0029] Furthermore, limit plates 3011 are provided at both the upper and lower ends of the side end faces of the active adjusting rod 3 and the driven adjusting rod 4.

[0030] The movement of the fixed ring 1 is restricted by the limiting plate 3011, thereby reducing the number of bolts required for fixing and improving the ease of installation of the active adjusting rod 3 and the driven adjusting rod 4.

[0031] Furthermore, the sliding assembly 5 includes a fixed frame 501, a fixing bolt 502, and a universal ball bearing 503. The fixed frame 501 is fixedly mounted on the fixed ring 1 by the fixing bolt 502, and the universal ball bearing 503 is mounted on the fixed frame 501.

[0032] By mounting the fixing frame 501 with universal ball bearings 503 on the fixing ring 1, when the patient wants to get out of bed, the sliding mechanism can slide the legs along the bed surface to the edge of the bed without having to lift the legs up, leave the bed surface, and move them to the edge of the bed.

[0033] Furthermore, the fixing frame 501 has an arc-shaped structure, and there are two universal ball bearings 503. The two sets of universal ball bearings 503 are installed on the left and right sides of the fixing frame 501 respectively.

[0034] The stability of the support is enhanced by two sets of ball bearings, which can provide stable support for the legs, prevent the legs from swinging from side to side, and improve the safety and stability of the fixation frame 501.

[0035] Furthermore, the fixing ring 1 is composed of two sets of arc-shaped plates 101, with mounting holes 1011 evenly provided on the arc-shaped plates 101, and the two sets of arc-shaped plates 101 are fixed by bolts.

[0036] Two sets of arc-shaped plates 101 are joined together to form a circular fixing ring 1, which is fixed with bolts and then fitted onto the outside of the fracture area. The fixing ring 1 is evenly provided with mounting holes 1011, which can freely adjust the installation position of the fixing pin 2, the active adjusting rod 3, the driven adjusting rod 4 and the sliding component 5.

[0037] When using this support, firstly, two sets of arc-shaped plates 101 are bolted together around the outside of the fracture area to form a fixation ring 1. The position of the fixation ring 1 is adjusted according to the fracture location and fixation requirements. The fixation pin 2 is percutaneously inserted into the bone and secured to the fixation ring 1 with a nut. Next, an active adjustment rod 3 and a driven adjustment rod 4 are installed at corresponding positions on adjacent fixation rings 1. The active adjustment rod 3 is fixed to the fixation ring 1 with bolts. Rotating the adjustment turntable 303 with the upright plate 3032 causes the adjustment screw 302 to rise and fall within the screw hole 3031 to adjust the length. The driven adjustment rod 4 inserts the sliding rod 402 into the sliding sleeve 401, and then... The active adjustment rod 3 extends and retracts synchronously, and is locked by pressing the slide rod 402 with the adjustment knob 403 on the rotating threaded sleeve 4012. The arc-shaped fixing frame 501 of the sliding component 5 is installed at the bottom of the fixing ring 1 by the fixing bolt 502. Two sets of universal ball bearings 503 contact the bed surface to form support. When the patient moves, the fixing ring 1 can be pushed to slide along the bed surface to the side of the bed through the ball bearings. During use, the length of the active adjustment rod 3 can be adjusted by manually turning the adjustment dial 303 at any time according to the rehabilitation needs, or the driven adjustment rod 4 can be slid by loosening the adjustment knob 403 to make fine adjustments, so as to ensure stable reduction of the fracture ends and adapt to changes in limb swelling.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements 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. An external fixator for fractures, comprising a fixation ring (1) and a fixation pin (2), characterized in that: An active adjusting rod (3) and a driven adjusting rod (4) are provided between adjacent fixed rings (1), and a sliding component (5) is provided on the side end face of the fixed ring (1); The fixing pin (2) is fixedly installed on the fixing ring (1). The active adjusting rod (3) includes a first sleeve (301), an adjusting screw (302), and an adjusting turntable (303). The adjusting turntable (303) is installed on the top of the first sleeve (301) and rotatably connected to it. The center of the adjusting turntable (303) is provided with a screw hole (3031) that cooperates with the adjusting screw (302). The adjusting screw (302) is inserted into the screw hole (3031) and threadedly connected to it. The driven adjusting rod (4) includes a sliding rod (402) and a sliding sleeve (401). The sliding rod (402) is inserted into the sliding sleeve (401) and slidably connected to it.

2. The external fixator for fractures as described in claim 1, characterized in that: The upper surface of the adjustment turntable (303) is provided with a vertical plate (3032), and there are two vertical plates (3032). The two sets of vertical plates (3032) are mirror images mounted on the upper surface of the adjustment turntable (303).

3. The external fixator for fractures as described in claim 1, characterized in that: The sliding sleeve (401) has a threaded sleeve (4012) that communicates with it on its side end face, and an adjusting knob (403) with a threaded connection is provided inside the threaded sleeve (4012).

4. The external fixator for fractures as described in claim 1, characterized in that: Limiting plates (3011) are provided at both the upper and lower ends of the side end faces of the active adjusting rod (3) and the driven adjusting rod (4).

5. The external fixator for fractures as described in claim 1, characterized in that: The sliding assembly (5) includes a fixed frame (501), a fixing bolt (502), and a universal ball bearing (503). The fixed frame (501) is fixedly mounted on the fixed ring (1) by the fixing bolt (502), and the universal ball bearing (503) is mounted on the fixed frame (501).

6. The external fixator for fractures as described in claim 5, characterized in that: The fixing frame (501) has an arc-shaped structure, and there are two universal ball bearings (503). The two sets of universal ball bearings (503) are respectively installed on the left and right sides of the fixing frame (501).

7. The external fixator for fractures as described in claim 1, characterized in that: The fixing ring (1) is composed of two sets of arc plates (101), and the arc plates (101) are evenly provided with mounting holes (1011). The two sets of arc plates (101) are fixed by bolts.

Images