SNAP-OFF SCREW WITH RECESSED BREAKOFF AREA

摘要

A snap-off screw (10) for insertion into one or more two bone regions (12A) (12B) includes a screw body (14) having a screw region (16) and a driver region (18). Upon insertion of the screw region (16), the driver region (18) is designed to be decoupled from the screw region (16). The screw region (16) includes a screw distal end (224), an opposed screw proximal end (226), a threaded area (228), and a head area (232) positioned at the screw proximal end (226). The driver region (18) includes a driver attachment end (238) and an opposed driver distal end (240). The driver attachment end (238) is coupled to the screw region (16) between the screw distal end (224) and the screw proximal end (226). With this design, when the driver region (18) is decoupled from the screw region (16), a screw break surface (460) is positioned below a portion of the head area (232) of the screw region (16). As a result thereof, the screw break surface (460) does not provide an area of irritation for soft tissue around the inserted snap-off screw (10).