Pedicle screw tail breaking device

Abstract

The invention discloses a pedicle screw tail breaking device which comprises a first forceps handle, a second forceps handle and a third forceps handle. The first clamp head is fixed on the first connecting structure; the second forceps handle is hinged with the first connecting structure; the second tong head is connected to the first connecting structure in a sliding mode and connected with the second tong handle through a second connecting structure, and when the second tong handle rotates relative to the first tong handle, the second tong handle drives the second tong head to be close to or away from the first tong head in parallel through the second connecting structure. According to the pedicle screw tail breaking device, the front end distance and the rear end distance of the first forceps head and the second forceps head are kept the same, the forceps head parts of the pedicle screw tail breaking device can extend to the breaking position of a screw tail, the situation that the rotation range is large when the screw tail is broken is avoided, wounds can be reduced to a large extent, and minimally invasive surgery is achieved; when the two breakers are used at the same time, mutual interference between the front end of the first forceps head and the front end of the second forceps head can be avoided.

Description

technical field [0001] The invention relates to the technical field of medical devices, and more particularly to a pedicle screw tail breaker. Background technique [0002] In lumbar spine surgery, the use of a combination of pedicle screws and titanium rods for fixation is a common treatment technique, and it is a necessary surgical procedure to fracture the excess screw tail at the end of the operation, especially in minimally invasive surgery. The nail-tail breaking pliers are commonly used in the steps of nailing the tail. The current breaking pliers are generally in the form of ordinary vise. Due to the limitation of the structure of the instrument itself, the relative movement of the two pliers heads is in a "V" shape. During the opening process, the distance between the front ends of the two forceps heads becomes larger and larger, resulting in the following problems during the operation: [0003] 1. The distance between the jaws of the breaking forceps is too large ...

AI Technical Summary

Problems solved by technology

[0005] The invention provides a pedicle screw tail breaker to solve the problem in the process of breaking the nail tail caused by the large opening of the jaws of the breaking forceps

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