Split type endoscopic bone chisel

Abstract

The invention provides a split type endoscopic bone chisel. The split type endoscopic bone chisel comprises a handle, a straight bar and a cutting head. The handle is arranged at one end of the straight bar. The cutting head is of a detachable structure and is fixed to the other end of the straight bar. When the split type endoscopic bone chisel is used, the straight bar is arranged behind an endoscope passage, and then the appropriate cutter head is connected to the end, penetrating out of an endoscope, of the straight bar; after connection is completed, the split type endoscopic bone chisel and the endoscope are jointly placed at a lesion position through a working sleeve so that the bone chisel can be operated under the visual condition; the cutting head can be conveniently replaced at any time for conducting different kinds of operation, and the straight bar does not need to be pulled out of the endoscope passage, so the split type endoscopic bone chisel is convenient to use and high in safety; after the handle is arranged on the split type endoscopic bone chisel, force application is easier in the using process, cutting operation in an operation can be completed, the frequency of beating operation is reduced, and the stability and fineness of the operation are improved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a split-type endoscopic osteotome. Background technique [0002] Often need to use osteotome in orthopedic surgery, the osteotome used clinically is mostly one-piece osteotome at present, and cutter head and cutter bar are integrally processed. In clinical use, the cutter head is designed into different shapes according to the operation requirements of different operations. Since the integrated osteotome only has one kind of cutter head, several osteotome will be used when performing more complicated operations. The preparation is inconvenient, and frequent replacement of the osteotome by the physician increases the risk of infection. [0003] In addition, in orthopedic minimally invasive surgery, an endoscope is usually used to perform surgery inside the human body. In consideration of minimizing the wound of the patient, generally the endoscopic channel is thinner, so...

AI Technical Summary

Problems solved by technology

In consideration of minimizing the patient’s wound, the channel of the endoscope is generally thinner, so some integrated osteotome with a larger or shaped cutter head cannot pass through the channel of the endoscope.

When the existing one-piece straight-rod osteotome is used with an endoscope, its working range is limited to the place where the straight rod can be extended, and it cannot complete such tasks as treating the osteophytes and calcified parts of the nerve root head

The shape of the head end of the existing osteotome is not scientific enough, it cannot exert force well when used, and it is easy to slip, and orthopedic surgery often requires relatively large force to achieve the surgical effect

Due to structural reasons, the existing osteotome operation cannot perform vigorous cutting operations, so the operation is mainly based on percussion, ignoring the skill of cutting first and then prying, which increases the risk of surgery

Images