Locking assembly for a surgical drill bit guide

A locking member adapted to set a maximum drilling depth for a drill bit, wherein the drill bit is adapted to extend through a drill bit guide, wherein the locking member comprises:

• a housing having an inner surface and an outer surface, wherein the inner surface includes a recessed cavity, wherein the recessed cavity comprises a first circumferential length;
• an first inner sleeve disposed inside the housing and coaxially disposed with the housing;
• a first biasing member having a first end adapted to connect to a portion of the housing, a second end adapted to connect to a portion of the sleeve, and at least one distal segment adapted to loop around a portion of the first inner sleeve;
• and
• wherein the housing is resiliently rotatable in a circumferential direction such that the housing is adapted to rotate a circumferential distance to a temporary biased position, wherein the circumferential distance is less than or equal to the first circumferential length of the recessed cavity.

A locking member and drill bit guide combination comprising:

• a drill bit guide comprising:
• a first stop collar, a second stop collar, a plurality of locking surfaces disposed between the first and second stop collars;
• a locking member comprising:
• a housing and a first inner sleeve, wherein the first inner sleeve is coaxially disposed with respect to the housing, and wherein the first inner sleeve has a resting unbiased position with respect to the drill bit guide;
• a first biasing member having a first end adapted to connect to a portion of the housing, and a second end adapted to connect to a portion of the first inner sleeve;
• wherein the first inner sleeve is resiliently rotatable to a temporary biased position upon rotation of the housing such that the first inner sleeve is adapted to rotate a circumferential distance with respect to the drill bit guide;
• wherein the unbiased position comprises a locked position for the locking member with respect to the drill bit guide such that the housing is not adapted to move longitudinally with respect to the drill bit guide;
• and
• wherein the temporary biased position comprises an unlocked position for the locking member with respect to the drill bit guide such that the housing is adapted to move longitudinally with respect to the drill bit guide.