A DRILL ATTACHMENT FOR CANNULATED SURGICAL DRILLS

摘要

A hammer drill attachment is provided for attachment to a bi-directional surgical drill. The attachment comprises a lengthwise adapter to engage a chuck of the surgical drill, a transmission mechanism, and a quick-release mechanism. The transmission mechanism comprises a pair of toothed plates, the teeth of a proximal plate configured to permit engagement with the teeth of a distal plate. When the proximal plate rotates in a first direction, the proximal plate transmits a rotational motion to the distal plate. When the proximal plate rotates in a second direction, the proximal plate transmits an axial percussive force to the distal plate. The quick-release mechanism comprises a socket to receive a collet, a socket seater, and a latching arm to move the socket seater with respect to the socket, thereby seating or unseating the collet in the socket.

主权项

1. A quick-release mechanism for a collet, the mechanism comprising:
a socket configured to receive the collet in a collet lumen, the socket comprising:
a proximal socket flange, anda distal socket flange distal to the proximal socket flange; a socket seater comprising:
a socket lumen configured to receive the socket,a socket seater flange disposed between the proximal socket flange and the distal socket flange, anda socket seater stub; a return spring disposed on an exterior surface of the socket seater; and a latching arm in contact with the socket seater stub, the latching arm having a first state, a second state, and a third state.