Tubular holder for holding tail end of mechanical arm of holding bone drill

Abstract

The invention relates to a tubular holder for holding a tail end of a mechanical arm of a bone drill. The tubular holder comprises a main holding pipe, an opening snap ring, a locking sleeve and a plurality of cone-shaped holding blocks, wherein the holding pipe is arranged at the tail end of the mechanical arm; the opening snap ring is positioned in the middle outside the main holding pipe; the locking sleeve is sleeved at a tail end of the outer part of the main holding pipe, the plurality of cone-shaped holding blocks are respectively positioned in holding block holes arranged at the tail end of the outer part of the main holing pipe and are arranged in the locking sleeve. The tubular holder can not only have the positioning function along the axial line of the tubular holder, but alsoensure that the axial line of the bone drill is consistent with the axial line of the holder all the time, thereby realizing the accurate repeated positioning of the bone drill after disassembly and assembly at one time; in addition, the tubular holder also has the characteristics that the operation is simple, the structure is compact, the holding force is small, the holding is reliable, etc.

Description

technical field [0001] The invention relates to a clamping mechanism for an orthopedic minimally invasive surgery auxiliary mechanical arm, in particular to a tubular clamper at the end of a mechanical arm for clamping a bone drill. Background technique [0002] In orthopedic surgery, it is often necessary to drill holes in bone for screw placement. Minimally invasive surgery is an important development direction in the field of surgery at present, with the advantages of less surgical trauma and fewer postoperative complications. In recent years, with the development of various minimally invasive surgical instruments and techniques, surgical indications have been continuously expanded. In the process of minimally invasive orthopedic surgery, especially in the process of minimally invasive orthopedic surgery for the spine, it is often necessary to obtain real-time images of the drilling site through intraoperative CT (or X-ray), and use image-guided computer-aided technology...

AI Technical Summary

Problems solved by technology

[0004] At present, there is no holder specially used for this type of medical bone drill. The holders of similar existing tubular devices do not have high positioning accuracy, convenient assembly and disassembly, clamping reliability and simple and compact appearance. and size

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