Inter-trochanteric fracture lateral wall protection fixator

Abstract

The utility model discloses a rotors interosseous fracture lateral wall protection fixator, include: shake hands, one end of the handshake is fixedly connected with the hammer handle, one end of the hammer handle is established with the mounting hole, the inside fixedly connected with the locating spring of mounting hole, the top fixedly connected with the locating block of locating spring, one end swing joint of the hammer handle has the connecting sleeve, one side fixedly connected with the hammer head of connecting sleeve, the inside of hammer head is established with the through -hole, the inside slide connection of through -hole has the sliding block, the top fixedly connected with the lever of sliding block, one side fixedly connected with the mounting sleeve of sliding block, the inside swing joint with the kirsch needle of mounting sleeve, the top fixedly connected with the fixed base of hammer head, the inside swing joint with the screw rod of fixed base, can drive the sliding of lever and sliding block through the rotation screw rod, the length of kirsch needle that stretches out hammer head is convenient to adjust, has improved the applicability of this fixator.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a lateral wall protection fixator for intertrochanteric fractures. Background Technology

[0002] The lateral wall protection fixation device for intertrochanteric fractures is a medical device used to treat intertrochanteric fractures of the femur. Intertrochanteric fractures of the femur are a common type of hip fracture in the elderly. The integrity of the lateral wall is crucial for the stability and prognosis of the fracture. This fixation device is mainly used to fix the fracture site during surgical treatment, while paying special attention to protecting the lateral wall of the intertrochanteric fracture to avoid further damage to the lateral wall, thereby improving the success rate of fracture healing.

[0003] In the treatment of intertrochanteric fractures with lateral fragmentation, lateral wall fracture is a challenging problem, especially during proximal medullary canal reaming, where there is a high risk of lateral wall fragmentation. Current techniques typically use a hammer to hold the lateral wall in place, but this provides limited protection. Therefore, there is a need to design a lateral wall protection fixation device for intertrochanteric fractures. Utility Model Content

[0004] The purpose of this invention is to provide a protective fixation device for the lateral wall of intertrochanteric fractures, which solves the problem that the existing technology usually uses a hammer to hold the lateral wall in place, resulting in limited protection for the lateral wall.

[0005] To achieve the above objectives, a lateral wall protection fixation device for intertrochanteric fractures is provided, comprising: a handle, one end of which is fixedly connected to a hammer handle, one end of which has an installation hole, a positioning spring fixedly connected inside the installation hole, a positioning block fixedly connected to the top of the positioning spring, a connecting sleeve movably connected to one end of the hammer handle, and a hammer head fixedly connected to one side of the connecting sleeve, facilitating the connection between the hammer head and the hammer handle, thereby facilitating the storage of the fixation device;

[0006] A through hole is provided inside one side of the hammer head, and a sliding groove is provided at the top of the hammer head, with the sliding groove communicating with the through hole. A slider is slidably connected inside the through hole, and a lever is fixedly connected to the top of the slider. A mounting sleeve is fixedly connected to one side of the slider, and a Kirschner wire is movably connected inside the mounting sleeve. A fixing seat is fixedly connected to the top of the hammer head, and a screw is movably connected inside the fixing seat. A knob is fixedly connected to one end of the screw, which facilitates adjustment of the length of the Kirschner wire extending out of the hammer head, thus improving the applicability of the fixture.

[0007] According to the intertrochanteric fracture lateral wall protection fixation device, the shape and size of the hammer handle are matched with the shape and size of the connecting sleeve, and the hammer handle and the connecting sleeve are movably connected, which facilitates the connection between the hammer handle and the hammer head.

[0008] According to the intertrochanteric fracture lateral wall protection fixation device, the outer wall of the connecting sleeve is provided with a positioning hole. The shape and size of the positioning hole are matched with the shape and size of the positioning block. When the positioning block corresponds to the positioning hole, the positioning block is connected to the positioning hole under the action of the positioning spring, which improves the stability of the connection between the hammer handle and the hammer head.

[0009] According to the intertrochanteric fracture lateral wall protection fixation device, the shape and size of the slider and the shape and size of the groove are matched to each other, and the slider and the groove are slidably connected to facilitate the movement of the slider.

[0010] According to the intertrochanteric fracture lateral wall protection fixation device, the fixation seat has a threaded hole inside, and the threaded hole is provided with threads. The screw is engaged with the threaded hole through the threads, which facilitates the movement of the screw and thus facilitates the adjustment of the length of the Kirschner wire extending out of the hammer head.

[0011] According to the intertrochanteric fracture lateral wall protection fixation device, a bearing is fixedly connected to one side of the top end of the lever, and one end of the screw is fixedly connected to the inner ring of the bearing to facilitate the rotation of the screw.

[0012] According to the intertrochanteric fracture lateral wall protection fixation device, the outer wall of one end of the Kirschner wire and the inner wall of the mounting sleeve are both provided with threads. The Kirschner wire is movably connected to the mounting sleeve through the threads, which facilitates the installation of the Kirschner wire.

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

[0014] 1. This intertrochanteric fracture lateral wall protection fixation device has a fixing seat on the top of the hammer head and a bearing on the top of the lever, which facilitates the rotation of the screw. By rotating the screw, the lever can slide in the groove and the slider can slide in the through hole, thereby adjusting the position of the mounting sleeve and the length of the Kirschner wire extending out of the hammer head. It can be adapted to different patients' anatomical structures and surgical needs, thus improving the applicability of this intertrochanteric fracture lateral wall protection fixation device.

[0015] 2. This intertrochanteric fracture lateral wall protection fixation device has a connecting sleeve on one side of the hammer head, and a positioning hole is opened in the inner wall of the connecting sleeve. An installation hole is opened at one end of the hammer handle, and a positioning spring is set inside the installation hole. A positioning block is fixed at one end of the positioning spring. Under the action of the positioning spring, the positioning block is connected to the positioning hole, thereby completing the connection between the hammer handle and the hammer head. This facilitates the storage of the fixation device and improves its practicality.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 This is a three-dimensional structural diagram of the intertrochanteric fracture lateral wall protection fixation device of this utility model;

[0019] Figure 2 This is a three-dimensional structural diagram of the hammer handle of the intertrochanteric fracture lateral wall protection fixator of this utility model;

[0020] Figure 3 This is a cross-sectional view of the hammer handle of the intertrochanteric fracture lateral wall protection fixator of this utility model;

[0021] Figure 4 This is a three-dimensional structural diagram of the hammer head of the intertrochanteric fracture lateral wall protection fixator of this utility model;

[0022] Figure 5 This is a cross-sectional view of the hammer head of the intertrochanteric fracture lateral wall protection fixator of this utility model;

[0023] Figure 6 This is a three-dimensional structural diagram of the lever of the intertrochanteric fracture lateral wall protection fixator of this utility model;

[0024] Figure 7 This is a three-dimensional structural diagram of the Kirschner wires in the intertrochanteric fracture lateral wall protection fixation device of this utility model.

[0025] In the diagram: 1. Handle; 2. Hammer handle; 3. Mounting hole; 4. Positioning spring; 5. Positioning block; 6. Connecting sleeve; 7. Positioning hole; 8. Hammer head; 9. Through hole; 10. Slide groove; 11. Toggle lever; 12. Slider; 13. Mounting sleeve; 14. Kirschner wire; 15. Bearing; 16. Fixing base; 17. Screw; 18. Knob. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-7This utility model provides a technical solution: a lateral wall protection fixation device for intertrochanteric fractures, comprising: a handle 1, a hammer handle 2 fixedly connected to one end of the handle 1, an installation hole 3 opened at one end of the hammer handle 2, a positioning spring 4 fixedly connected inside the installation hole 3, a positioning block 5 fixedly connected to the top of the positioning spring 4, a connecting sleeve 6 movably connected to one end of the hammer handle 2, and a hammer head 8 fixedly connected to one side of the connecting sleeve 6, which facilitates the installation of the hammer head 8 and the hammer handle 2, and fixes the position of the hammer handle 2 in the connecting sleeve 6 by the connection of the positioning block 5 and the positioning hole 7, thereby improving the stability of the connection between the hammer handle 2 and the hammer head 8;

[0028] A through hole 9 is provided inside one side of the hammer head 8, and a sliding groove 10 is provided on the top of the hammer head 8, which communicates with the through hole 9. A slider 12 is slidably connected inside the through hole 9, and a lever 11 is fixedly connected to the top of the slider 12. A mounting sleeve 13 is fixedly connected to one side of the slider 12, and a Kirschner wire 14 is movably connected inside the mounting sleeve 13. A fixing seat 16 is fixedly connected to the top of the hammer head 8, and a screw 17 is movably connected inside the fixing seat 16. A knob 18 is fixedly connected to one end of the screw 17. By rotating the screw 17, the lever 11 and the slider 12 can slide in the sliding groove 10 and the through hole 9, thereby facilitating the adjustment of the position of the mounting sleeve 13 and thus adjusting the length of the Kirschner wire 14 extending out of the hammer head 8.

[0029] The shape and size of the hammer handle 2 match the shape and size of the connecting sleeve 6, and the hammer handle 2 and the connecting sleeve 6 are movably connected, facilitating the connection between the hammer handle 2 and the hammer head 8, thus facilitating the storage of the fixture. A positioning hole 7 is provided on the outer wall of the connecting sleeve 6, and the shape and size of the positioning hole 7 match the shape and size of the positioning block 5. When the positioning block 5 corresponds to the positioning hole 7, the positioning block 5 is connected to the positioning hole 7 under the action of the positioning spring 4, facilitating the connection between the positioning block 5 and the positioning hole 7, thereby improving the stability of the connection between the hammer handle 2 and the hammer head 8. The shape and size of the slider 12 match the shape and size of the slide groove 10, and the slider 12 is slidably connected to the slide groove 10, facilitating the connection between the slider 12 and the slide groove 10. The movement of the mounting sleeve 13 facilitates the adjustment of its position within the through hole 9, thereby facilitating the adjustment of the length of the Kirschner wire 14 extending beyond the hammer head 8. The fixing base 16 has a threaded hole inside, with threads inside. The screw 17 engages with the threaded hole via the threads, facilitating the movement of the screw 17. A bearing 15 is fixedly connected to one side of the top of the lever 11, and one end of the screw 17 is fixedly connected to the inner ring of the bearing 15, facilitating the rotation of the screw 17. Threads are provided on the outer wall of one end of the Kirschner wire 14 and the inner wall of the mounting sleeve 13. The Kirschner wire 14 is movably connected to the mounting sleeve 13 via the threads, facilitating the installation and removal of the Kirschner wire 14 and improving the stability of the Kirschner wire 14 installation.

[0030] Working principle: In use, take out the hammer handle 2 and hammer head 8 from the storage box. Press the positioning block 5 at one end of the hammer handle 2 to retract the positioning block 5 into the mounting hole 3 and compress the positioning spring 4. At the same time, insert the hammer handle 2 into the connecting sleeve 6 and rotate the hammer handle 2 until the positioning block 5 corresponds to the positioning hole 7 on the connecting sleeve 6. Under the elastic force of the positioning spring 4, the positioning block 5 and the positioning hole 7 are connected, thus completing the connection between the hammer handle 2 and the hammer head 8. Adjust the length of the Kirschner wire 14 by rotating the knob 18, which drives the screw 17 to rotate. The rotation of the screw 17 drives the lower lever 11 and the slider 12 to move, thereby adjusting the length of the Kirschner wire 14. Adjust the extended length. Once adjusted, the surgery can begin. Align the Kirschner wires 14 on the hammer head 8 with the outer cortex of the rotor and gently tap the hammer handle to allow the Kirschner wires 14 to gradually penetrate the outer cortex. The simultaneous action of multiple Kirschner wires 14 disperses the stress acting on the outer wall, preventing excessive local stress from causing bone fragmentation. After the surgery, remove the fixator and press the positioning block 5 on the outside of the connecting sleeve 6 to retract it into the mounting hole 3 and compress the positioning spring 4, thereby disconnecting the connection between the positioning block 5 and the positioning hole 7. Pulling it outward will disconnect the connection between the hammer handle 2 and the hammer head 8, facilitating the storage of the fixator.

[0031] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. Lateral wall protection fixation device for intertrochanteric fractures, including: A handshake (1), characterized in that a hammer handle (2) is fixedly connected to one end of the handshake (1), a mounting hole (3) is provided at one end of the hammer handle (2), a positioning spring (4) is fixedly connected inside the mounting hole (3), a positioning block (5) is fixedly connected to the top of the positioning spring (4), a connecting sleeve (6) is movably connected to one end of the hammer handle (2), and a hammer head (8) is fixedly connected to one side of the connecting sleeve (6); A through hole (9) is provided inside one side of the hammer head (8), and a sliding groove (10) is provided on the top of the hammer head (8), and the sliding groove (10) communicates with the through hole (9). A slider (12) is slidably connected inside the through hole (9), and a lever (11) is fixedly connected to the top of the slider (12). An installation sleeve (13) is fixedly connected to one side of the slider (12), and a Kirschner wire (14) is movably connected inside the installation sleeve (13). A fixing seat (16) is fixedly connected to the top of the hammer head (8), and a screw (17) is movably connected inside the fixing seat (16). A knob (18) is fixedly connected to one end of the screw (17).

2. The intertrochanteric fracture lateral wall protection fixation device as described in claim 1, characterized in that: The shape and size of the hammer handle (2) are matched with the shape and size of the connecting sleeve (6), and the hammer handle (2) and the connecting sleeve (6) are movably connected.

3. The intertrochanteric fracture lateral wall protection fixation device as described in claim 1, characterized in that: The outer wall of the connecting sleeve (6) is provided with a positioning hole (7). The shape and size of the positioning hole (7) are matched with the shape and size of the positioning block (5). When the positioning block (5) corresponds to the positioning hole (7), the positioning block (5) is connected to the positioning hole (7) under the action of the positioning spring (4).

4. The intertrochanteric fracture lateral wall protection fixation device as described in claim 1, characterized in that: The shape and size of the slider (12) are matched with the shape and size of the groove (10), and the slider (12) and the groove (10) are slidably connected.

5. The lateral wall protection fixation device for intertrochanteric fractures as described in claim 1, characterized in that: The fixed base (16) has a threaded hole inside, and the threaded hole has a thread inside. The screw (17) is engaged with the threaded hole through the thread.

6. The lateral wall protection fixation device for intertrochanteric fractures as described in claim 1, characterized in that: A bearing (15) is fixedly connected to one side of the top end of the lever (11), and one end of the screw (17) is fixedly connected to the inner ring of the bearing (15).

7. The intertrochanteric fracture lateral wall protection fixation device as described in claim 1, characterized in that: The Kirschner wire (14) has threads on its outer wall at one end and on the inner wall of the mounting sleeve (13). The Kirschner wire (14) is movably connected to the mounting sleeve (13) through the threads.

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