15-06-2017 дата публикации
Номер: US20170164953A1
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. 1. A quick-release mechanism for a collet , the mechanism comprising: a proximal socket flange, and', 'a distal socket flange distal to the proximal socket flange;, 'a socket configured to receive the collet in a collet lumen, the socket comprising a socket lumen configured to receive the socket, wherein the socket lumen is co-axial to the collet lumen,', 'a socket seater flange disposed between the proximal socket flange and the distal socket flange, and', 'a socket seater stub;, 'a socket seater comprisinga return spring disposed on an exterior surface of the socket seater; anda latching arm in contact with the socket seater stub, the latching arm having a first state, a second state, and a third state, wherein the latching arm moves in a direction under a force with the return spring.2. The mechanism of claim 1 , wherein the socket seater flange claim 1 , when the latching arm is placed in the first state claim 1 , is configured to move the proximal socket flange in a proximal direction claim 1 , thereby securing an exterior surface of the collet against an inner surface of the collet lumen.3. The mechanism of claim 2 , ...
Подробнее