An emergency external fixation bracket for wrist fracture

Abstract

The invention relates to the technical field of medical devices, and discloses a first-aid external fixation bracket for wrist fracture, which includes a connecting bracket and a bone nail. A bellows is fixedly connected between the connectors, a symmetrical adjustment cavity is opened inside the connecting bracket, the outer ring of the bone nail located inside the adjustment cavity is movably sleeved with an adjustment gear, and the back of the adjustment cavity is fixedly installed with A rack, the middle thread on the front of the connecting bracket is provided with fastening bolts, the front of the connecting bracket is movably installed with a pull bar extending into the inside of the adjustment cavity, and one end of the pull bar inside the adjustment cavity is fixedly connected with a tooth key Rubber strips, coil springs are movably installed inside the rewinding cavity, and are fixedly installed in the middle of the connecting bracket and adjusted symmetrically, and at the same time, the sleeve structure is installed inside the bellows, which improves the stability and adjustment effect.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an emergency external fixation bracket for wrist fractures. Background technique [0002] Wrist fracture is a very common complete or partial fracture of the continuity of the bone structure. The fracture situation will be related to the magnitude of the immediate injury, and the treatment methods for people of different ages and different fracture situations are also different. Among them When the bone damage is a little serious, surgery is required, but the surgery is not only cumbersome, but also expensive. After the bone grows well, it needs to be operated again to remove the internal steel plate, which is very troublesome. Therefore, the current method of external fixation It came out as the times require. It uses bone nails to embed the two ends of the broken bone, and the top can be connected together with a connecting rod structure. It does not require complicated...

AI Technical Summary

Problems solved by technology

[0002] Wrist fracture is a very common complete or partial fracture of the continuity of the bone structure. The fracture situation will be related to the magnitude of the immediate injury, and the treatment methods for people of different ages and different fracture situations are also different. Among them When the bone damage is a little serious, surgery is required, but the surgery is not only cumbersome, but also expensive. After the bone grows well, it needs to be operated again to remove the internal steel plate, which is very troublesome. Therefore, the current method of external fixation It came out as the times require. It uses bone nails to embed the two ends of the broken bone, and the top can be connected together with a connecting rod structure. It does not require complicated operations, and its healing effect is better, so it is very popular now. But there are still some problems when using it:

[0003] When installing the fixing bracket, it is based on the bone nail embedded in the wrist first, so that the bone nail can be guaranteed to be parallel during installation. However, when installing the connecting rod later, the clamping method is mostly used, and the clamping position is at Under normal circumstances, the force on both sides of the top of the bone screw will be uneven, which will cause the bone screw to tilt. At the same time, the bone screw acts on the bone, which will cause the bone to break The bone at the place is affected by the tilted gravity, which leads to the long crooked situation, and the method of only sliding to adjust the fixed distance during adjustment will also cause the two ends of the connecting rod to be asymmetrical, and it will also cause two ends after installation. The position between the connecting rods is concave due to excessive gravity, which makes the fixing effect worse. At the same time, the connection between the two connecting rods will cause shaking by using a ball socket. It is convenient to clamp and easy to slide. For patients, the wrist cannot be moved frequently, which is not conducive to the growth and recovery of bones.

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