A bone nail extractor for limbs

Abstract

The invention relates to the technical field of medical equipment, in particular to a bone nail extractor for limbs, comprising a screwdriver and a bracket, the outer periphery of the main body of the screwdriver is provided with external threads, the bottom of which is provided with a screwdriver head, and the bracket includes front and rear hollows The fixed frame, turntable, linear slide rail, slider, support rod and support plate, the top of the fixed frame is provided with a turntable, the radial direction of the turntable is provided with two parallel linear slide rails, the linear slide The ends on both sides of the rail are slidably connected with the inner peripheral surface of the turntable, and two sliders are slidably arranged between the two linear slide rails, and a support rod is hinged on the top of each slider, and the two support rods The other end of the screwdriver is fixedly connected to the bottom of the support plate, and the screwdriver thread is connected to the support plate. The present invention enables anyone to operate the nail remover with the support of the bracket, and the screwdriver can keep a straight line with the bone nail at any angle during the nail removal process, which greatly improves the success rate of the nail removal.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a bone nail extractor for limbs. Background technique [0002] For the treatment of fractures, bone nails are often placed in the fracture site clinically to promote the fracture to return to normal conditions. Generally, bone nails are made of metal products, because long-term existence in the body will hinder the growth of soft tissue and blood vessels at the fixed site, resulting in local osteoporosis. Therefore, the fracture patient needs to remove the bone nail in time after healing. However, it is often difficult to remove the bone nail, which is likely to cause the bone nail to slip or break. In order to prevent slippage and breakage during the removal of the bone screw, it is necessary to maintain stability when operating the screw removal device so that it is in a straight line with the bone screw to avoid swinging the removal device and avoiding the tail of th...

AI Technical Summary

Problems solved by technology

[0002] For the treatment of fractures, bone nails are often placed in the fracture site clinically to promote the fracture to return to normal conditions. Generally, bone nails are made of metal products, because long-term existence in the body will hinder the growth of soft tissue and blood vessels at the fixed site, resulting in local osteoporosis. Therefore, the fracture patient needs to remove the bone nail in time after healing. However, it is often difficult to remove the bone nail, which is likely to cause the bone nail to slip or break. In order to prevent slippage and breakage during the removal of the bone screw, it is necessary to maintain stability when operating the screw removal device so that it is in a straight line with the bone screw to avoid swinging the removal device and avoiding the tail of the bone screw. The groove is unevenly stressed, and it requires not only stable operation but also a lot of strength when removing the nails. This puts forward high requirements on the operating skills of medical staff, and not all doctors can operate it. The current nail removers have With the help of the bracket structure, the workload of the medical staff is effectively reduced and the stability is improved. However, because the position and angle of the bone screw in the bone are also varied, these bracket solutions cannot effectively deal with the removal of the multi-angle bone screw. , it still needs to be done manually, and the effect is not ideal. Nowadays, there is an urgent need for a technical solution that can be operated by any medical staff and can be stably and smoothly removed at any angle.

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