Patent ID: 9572589
Date: 2017-02-21
CPC Classifications: A61B

Claim:
1. A system for piercing bone comprising: a guide having a housing with a proximal section and a distal section, the housing defining a bore extending through the housing from the proximal section towards the distal section, the bore having a longitudinal axis; a locking member coupled with the housing; a bone-piercing implement having a locking portion and a bone-piercing section with a cutting region adapted for cutting into bone, the locking portion being engageable and disengageable with the locking member, wherein the bone-piercing implement is locked in opposing directions relative to the housing along the longitudinal axis when the locking portion is engaged with the locking member and, when the locking portion is disengaged from the locking member, the bone-piercing implement is movable relative to the housing within the bore along the longitudinal axis, the distal section of the housing including an opening having a first diameter and the locking portion having a second diameter greater than the first diameter, such that the cutting region of the bone-piercing implement is adapted to pass through the opening but the locking portion is not; and a movable guide disposed within the bore of the housing, wherein the locking portion of the bone-piercing implement is movable within the bore relative to and distal of the locking member while the locking member is coupled with the housing, wherein a surface on the bone-piercing implement is engageable with a surface on the movable guide to move the movable guide axially relative to the housing within the bore in the housing, and wherein a projection separate and distinct from the locking portion and the locking member and extending from the moveable guide engages with a slot formed in the housing to prevent rotation of the movable guide relative to the housing.