JP2010119465A5

JP2010119465A5 -

Info

Publication number: JP2010119465A5
Application number: JP2008293942A
Authority: JP
Filing date: 2008-11-17
Publication date: 2011-11-24
Anticipated expiration: 2028-11-17

Description

本発明に係る医療用切削具の案内具は、先端部側に切削部を設けるとともに中心軸を中心に回転させて切削動作を行なう医療用切削具の案内具であって、前記医療用切削具の外周面の外径よりもわずかに大きい内径を有するガイド面が形成されるとともに前記医療用切削具の外周面に回動自在に装着されるガイド部材と、施術部位に位置決めされて取り付けられるとともに前記ガイド部材を切削方向に移動しないように保持する保持部材とを備えていることを特徴とする。さらに、前記保持部材は、前記ガイド部材の外周面の外径よりも狭い幅の開口部が切削方向に沿って形成されており、前記医療用切削具に装着された前記ガイド部材を切削方向と直交する方向から前記開口部に嵌入させ前記保持部材及び／又は前記ガイド部材が一時的に変形して前記ガイド部材が前記保持部材内に装着されることで前記医療用切削具が切削方向に沿うように保持されることを特徴とする。さらに、前記ガイド部材は、円筒状部材であることを特徴とする。さらに、前記保持部材は、薄板状の一対の把持部を備えていることを特徴とする。さらに、前記ガイド部材には、前記保持部材に当接して切削方向の移動を規制する規制部が形成されていることを特徴とする。 A guide for a medical cutting tool according to the present invention is a guide for a medical cutting tool that is provided with a cutting portion on a distal end side and that rotates around a central axis to perform a cutting operation. A guide surface having an inner diameter slightly larger than the outer diameter of the outer peripheral surface of the medical cutting tool, a guide member rotatably mounted on the outer peripheral surface of the medical cutting tool, and positioned and attached to the treatment site characterized in that a holding member for holding so as not to move the guide member in the cutting direction. Furthermore, the holding member is formed with an opening having a width smaller than the outer diameter of the outer peripheral surface of the guide member along the cutting direction, and the guide member mounted on the medical cutting tool is defined as the cutting direction. The medical cutting tool follows the cutting direction by being fitted into the opening from a direction orthogonal to the holding member and / or the guide member being temporarily deformed and the guide member being mounted in the holding member. It is characterized by being hold | maintained. Further, the guide member is a cylindrical member. Further, the holding member includes a pair of thin plate-like gripping portions. Further, the guide member is formed with a restricting portion that abuts the holding member and restricts movement in a cutting direction.

Claims

A guide for a medical cutting tool that is provided with a cutting portion on the tip side and performs a cutting operation by rotating around a central axis, and has an inner diameter slightly larger than the outer diameter of the outer peripheral surface of the medical cutting tool. And a guide member that is rotatably mounted on the outer peripheral surface of the medical cutting tool, and is positioned and attached to the treatment site and holds the guide member so as not to move in the cutting direction. guide member of the medical cutting tool, characterized in that a holding member.

The holding member is formed with an opening having a width narrower than the outer diameter of the outer peripheral surface of the guide member along the cutting direction, and the guide member mounted on the medical cutting tool is orthogonal to the cutting direction. The holding member and / or the guide member is temporarily deformed by being inserted into the opening from the direction, and the guide member is mounted in the holding member, so that the medical cutting tool is along the cutting direction. The guide according to claim 1, wherein the guide is held.

The guide tool according to claim 1, wherein the guide member is a cylindrical member.

The guide according to any one of claims 1 to 3, wherein the holding member includes a pair of thin plate-shaped gripping portions.

The guide member according to any one of claims 1 to 4, wherein the guide member is formed with a restricting portion that contacts the holding member and restricts movement in a cutting direction.