초록 ▼

A driver for use in orthopedic surgery having a generally elongate housing adapted for single-handed gripping operation. The driver includes an engagement mechanism associated with the housing for releasably engaging the proximal end of a longitudinally extending driven member and includes a driven

A driver for use in orthopedic surgery having a generally elongate housing adapted for single-handed gripping operation. The driver includes an engagement mechanism associated with the housing for releasably engaging the proximal end of a longitudinally extending driven member and includes a driven member, such as a flexible drive spindle, for rotatably driving the engagement mechanism. The driver further includes shield that is supportingly connected with an end of the housing so as to extend co-axially with and fully circumscribe the driven member. The distal end of the shield terminates in an end portion adapted to be placed against a surface of a body part into which the member is driven. The driver also includes a mechanism to permit relative movement in an axial direction between the engagement mechanism and the end portion for advancement into and retraction from the surface so that, in use, single-handedly, the driven member is always fully shielded and supported. In the preferred form of the invention the relative movement between the engagement mechanism and end portion is achieved by a longitudinally retracting shield. In other embodiments the shield is fixed and the engagement mechanism is advanced internally within the housing.

대표청구항 ▼

[ What is claimed is:] [1.] A compact single unit driver with integral shield device for use on a body part in surgery, the driver including:a housing adapted for single handed gripping operation;engagement means associated with said housing for releasably engaging an end of a longitudinally extendi

[ What is claimed is:] [1.] A compact single unit driver with integral shield device for use on a body part in surgery, the driver including:a housing adapted for single handed gripping operation;engagement means associated with said housing for releasably engaging an end of a longitudinally extending driven member;drive motor for rotatably driving the engagement means;longitudinally extending non-rotating shield connected with an end of the housing, the shield extending co-axially with and circumscribing the driven member, the distal end of the shield terminating in an end portion adapted to be placed against a surface of the body part toward which the driven member is to be driven; andmeans to permit relative movement in an axial direction between the engagement means and the end portion of the shield for advancement of the driven member toward the body part and retraction therefrom, wherein in use the engagement means and a portion of the driven member above the surface of the body part are always fully shrouded by the housing and the shield and wherein the driven member in an inoperative mode protrudes from the shield to facilitate accurate positioning prior to use and the driven member is retractable, relative to the end portion, prior to use to allow the end portion to be placed against a surface of the body part prior to use.