Chuck for surgical drill has jaw which can slide longitudinally in chuck, is locked in position by sleeve to hold drill bit and is biased towards locking position by leaf spring

摘要

The chuck for a surgical drill has a jaw (104) which can slide longitudinally in the chuck and is locked in position by a sleeve (78) to hold the drill bit (12). It is biased towards the locking position by a leaf spring (118). There are preferably three jaws arranged radially around the bit.