US 7,549,994 B2
Targeting device for a locking nail
Nils Zander, Eckernförde (Germany); and Axel Cremer, Fahrenkrog (Germany)
Assigned to Stryker Trauma GmbH, Schönkirchen (Germany)
Filed on Oct. 27, 2003, as Appl. No. 10/694,479.
Claims priority of application No. 202 16 857 (DE), filed on Nov. 02, 2002.
Prior Publication US 2004/0138671 A1, Jul. 15, 2004
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 17/58 (2006.01); A61B 17/60 (2006.01); A61F 2/00 (2006.01)
U.S. Cl. 606—99 21 Claims
OG exemplary drawing
 
1. A targeting apparatus for a locking nail having cross-bores, the axes of which are disposed in an offset relationship from each other by predetermined distances and/or predetermined angles, comprising:
a targeting arm having at least one target bore therein and a holding device to retain a first end of the nail;
a retaining portion having a reception bore in which a retaining bar forming part of the holding device is guided which bar extends parallel to the targeting arm, the retaining bar has a fastener to fix the nail to a leading end of the bar, the retaining bar has several recesses in the area of the reception bore, the reception bore has associated therewith a handle having a movable locking element mounted thereon which can be caused to engage one of the recesses to locate the axial and rotational positions of the retaining bar in the reception bore, wherein the arrangement of the recesses is such that the target bore is aligned with a cross-bore of the nail when the locking element engages a recess and the handle has associated therewith means for indicating whether the locking element is in engagement with the recess or is not in engagement therewith.