Sliding positioning guide device

Abstract

The invention discloses a sliding positioning guide device which comprises an arc-shaped fixing arm including an arc-shaped chute, an arc-shaped sliding arm matched with the arc-shaped chute, a positioning puncture needle matched with a positioning needle and a skeleton fixing part installed in a drill bit sleeve. The starting end of the arc-shaped fixing arm is provided with the drill bit sleeve radially extending along the arc-shaped fixing arm, and the drill bit sleeve is provided with a fixing screw for fixing the drill bit sleeve. The tail end of the fixing arm is provided with a fixing screw for fixing the sliding arm in the arc-shaped chute, the tail end of the sliding arm is provided with the positioning needle radially extending along the arc-shaped sliding arm, and the positioning needle is provided with a fixing screw for fixing the positioning needle. The arc-shaped fixing arm and the arc-shaped sliding arm are con-cyclic, the skeleton fixing part and the positioning needle are located on the same horizontal plane, and the skeleton fixing part installing the drill bit sleeve and the positioning needle encounter at the center of the circle. The sliding positioning guide device is simple in structure, convenient to operate and capable of accurately and rapidly enabling a drill bit or a guide needle to penetrate an appropriate position, reduces secondary operation injury on local soft tissues, shortens the operation time, reduces bleeding, reduces complications of postoperative patients and shortens the hospital stays.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a sliding positioning and guiding device for positioning and guiding a drill bit. Background technique [0002] With the development of society and the aging of society, the proportion of elderly fractures in orthopedics is increasing. For elderly patients with fractures, orthopedic surgeons generally hope to use minimally invasive surgery methods to reduce the secondary blow to patients. It is especially important for the recovery of elderly patients, but in minimally invasive surgery, due to the small incision, insufficient exposure of the operative field, and inaccurate positioning of the drill bit / Kirschner wire, thereby prolonging the operation time and increasing the risk during the operation. When performing fracture surgery, orthopedic surgeons use traction, warping and other surgical methods to reset the fractured ends, temporarily fix the fractured ends with...

AI Technical Summary

Problems solved by technology

The position of the Kirschner wire guide of this kind of Kirschner wire guiding device is fixed. When the needle entry point is determined, the position of the needle exit point is also determined at the same time. Sometimes it is necessary to determine the needle entry point and the needle exit point separately in clinical use. In this case The positioning device is not flexible enough in use; at the same time, this device has a better effect on the hands and feet with less muscle tissue and small bone volume, but it is not practical for other muscle-rich parts and large bone volume fractures that require accurate positioning

Images