US 7,559,150 B2
Depth gauge
Alberto Fernandez, Montevideo (Uruguay)
Assigned to Synthes USA, LLC, West Chester, Pa. (US)
Filed on Oct. 13, 2005, as Appl. No. 11/248,525.
Prior Publication US 2007/0088366 A1, Apr. 19, 2007
Int. Cl. A61B 5/107 (2006.01)
U.S. Cl. 33—512  [33/783; 600/587] 18 Claims
OG exemplary drawing
 
1. An instrument for measuring blind holes in bones or implants inserted within bones, comprising:
a. an elongated probe having a proximal end, a distal end, a longitudinal axis, and a scale on the proximal end of the probe;
b. a housing slidably mounted relative to the scale;
c. an abutment formed at the distal end of the probe, the abutment configured and dimensioned to fit through a hole to be measured;
d. an elongated insert having a longitudinal groove with a transverse section corresponding to a transverse section of the probe, the groove configured and dimensioned to permit sliding of the insert with respect to the probe along the longitudinal axis;
wherein sliding of the insert toward the proximal end of the probe causes movement of the abutment toward a distal wall adjacent the hole.