A bone nail remover for limbs

Abstract

A medical device in particular to a bone nail remover for limbs, including screwdrivers and brackets, the outer periphery of the main body of the screwdriver is provided with external threads, a screwdriver head is arranged at the bottom thereof, the bracket comprises a front and a rear hollowed-out fixing frame. Turntable, straight slide, slider, support bar and support plate, a turntable is arranged on the top of the fixing frame, two parallel linear slide rails are arranged in the radial direction of the turntable. The two ends of the linear slide rail are slidably connected with the innercircumferential surface of the turntable, two sliding blocks are slidably arranged between the two linear slide rails, a support rod is hinged on the top of each sliding block, the other ends of the two support rods are fixedly connected with the bottom of the support plate, and a screwdriver is threaded through the support plate. The invention enables anyone to operate the nail extractor by meansof the support of the bracket, and the screwdriver can keep a straight line with the bone nail of any angle in the nail extracting process, thereby greatly improving the success rate of nail extracting.

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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