CPC A61B 17/1626 (2013.01) [A61B 17/1615 (2013.01); A61B 17/1622 (2013.01); A61B 17/1628 (2013.01); A61B 17/1633 (2013.01); A61B 90/03 (2016.02); A61B 90/06 (2016.02); A61B 17/1624 (2013.01); A61B 2090/036 (2016.02); A61B 2090/062 (2016.02)] | 18 Claims |
1. A surgical drill system for actuating a drill bit and determining a breakthrough depth of a bore formed in a bone, the surgical drill system comprising:
a housing;
a motor for being operatively coupled to the drill bit disposed in the housing;
a probe being slidably mounted to the housing so as to extend forward from the housing, the probe having a distal end adapted for placement against tissue;
a transducer assembly mounted to the housing for generating displacement signals representative of a distance the housing moves relative to the distal end of the probe when the drill bit is operatively coupled to the motor and advanced into tissue;
a biasing member coupled to the probe for biasing the distal end of the probe forward away from the housing; and
a processor configured to,
receive the displacement signals from the transducer assembly,
store the displacement signals and time data corresponding to the displacement signals in memory as the drill bit advances into the bone to form the bore,
determine a final penetration depth of the drill bit based on the stored displacement signals,
determine time data at which the final penetration depth of the drill bit occurred after determining the bore of the bone has been fully formed,
determine a breakthrough time frame based on stored displacement signals and corresponding time data and based on the time data at which the final penetration depth of the drill bit occurred, and
determine the breakthrough depth of the bore formed in the bone based on displacement signals in the breakthrough time frame.
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