公开(公告)号：US5190549A

公开(公告)日：1993-03-02

申请号：US561801

申请日：1990-08-02

Applicant: Gary J. Miller ,  Matthew Lyons

Inventor： Gary J. Miller ,  Matthew Lyons

IPC: A61B17/00 ,  A61B17/16

CPC classification number: A61B17/1659 ,  A61B2017/0046

Abstract: A locking surgical tool handle system. The invention includes a surgical tool handle that has an elongated body portion with a pistol-type grip. The front end of the handle body has a tool retaining structure comprising a contoured engagement face and a movable tension bar with an engagement end. Projections on the engagement end of the tension bar fit within a receiving channel of a surgical tool, such as a broach or rasp. A locking mechanism is provided within the handle body, and is implemented with pivotable links attached to the tension bar. The locking mechanism has an unlocked position in which the engagement end of the tension bar is spaced away from the engagement face of the handle body, and an over-center locked position in which the engagement end of the tension bar is retracted toward the handle body. When the tool handle is placed in its locked position, the engagement end of the tension bar pulls an attached tool into tight contact with the engagement face of the handle body.

Abstract translation: 锁定手术工具手柄系统。 本发明包括外科手术工具手柄，其具有带有手枪型手柄的细长主体部分。 手柄本体的前端具有工具保持结构，该结构包括具有轮廓的接合面和具有接合端的可动张力杆。 张力杆的接合端上的突出部配合在诸如拉刀或锉刀的手术工具的接收通道内。 锁定机构设置在把手主体内，并且具有连接到张力杆上的可转动的连杆。 锁定机构具有解锁位置，其中张力杆的接合端与手柄主体的接合面间隔开，并且过中心锁定位置，拉杆的接合端朝向把手本体 。 当工具手柄处于其锁定位置时，张力杆的接合端将附接的工具拉动与把手主体的接合面紧密接触。

公开(公告)号：US5152799A

公开(公告)日：1992-10-06

申请号：US771773

申请日：1991-10-04

Applicant: Matthew Lyons

Inventor： Matthew Lyons

IPC: A61F2/00 ,  A61F2/30 ,  A61F2/36

CPC classification number: A61F2/3676 ,  A61F2/3609 ,  A61F2002/30018 ,  A61F2002/30112 ,  A61F2002/30154 ,  A61F2002/30158 ,  A61F2002/30179 ,  A61F2002/30827 ,  A61F2002/3631 ,  A61F2230/0004 ,  A61F2230/0021 ,  A61F2230/0026 ,  A61F2230/0058 ,  A61F2250/0029

Abstract: A femoral stem prosthesis including a stem tapering from a proximal end to a distal end, and having a primary zone of taper and a secondary zone of taper. The secondary zone of taper, located at the distal end of the stem, has a larger angle of taper than that of the primary zone of taper, but substantially less than the taper in prior art stems. In the secondary zone of taper, the stem gradually tapers away from the femoral bone to avoid a sudden change in stress level in the bone at the distal stem tip, thus avoiding the incidence of thigh pain. The stem of the inventive prosthesis preferably includes longitudinal channels to increase its flexibility and preferably has a trapezoidal cross-sectional geometry to resist rotational forces and to provide multi-plane stability within the femur, thereby providing effective stress transfer to the femur.

Abstract translation: 股骨柄假体包括从近端到远端逐渐变细的柄，并且具有锥形的主区和锥形的次级区。 锥形的次级区域位于杆的远端，具有比锥形的初级区域更大的锥度角，但是基本上小于现有技术杆的锥度。 在锥形的次级区域，茎逐渐从股骨上逐渐变细，以避免远端茎尖处的骨中的应力水平突然变化，从而避免大腿疼痛的发生。 本发明假体的茎优选地包括纵向通道以增加其柔性，并且优选地具有梯形横截面几何形状以抵抗旋转力并且在股骨内提供多平面稳定性，从而向股骨提供有效的应力传递。