US 9,808,244 B2
Sensor arrangements for absolute positioning system for surgical instruments
Richard L. Leimbach, Cincinnati, OH (US); Mark D. Overmyer, Cincinnati, OH (US); Brett E. Swensgard, West Chester, OH (US); and Shane R. Adams, Lebanon, OH (US)
Assigned to Ethicon LLC, Guaynabo, PR (US)
Filed by Ethicon Endo-Surgery, Inc., Cincinnati, OH (US)
Filed on Mar. 14, 2013, as Appl. No. 13/803,210.
Prior Publication US 2014/0263538 A1, Sep. 18, 2014
Int. Cl. A61B 17/068 (2006.01); A61B 17/072 (2006.01); A61B 17/00 (2006.01); A61B 17/29 (2006.01); G01D 5/14 (2006.01); A61B 90/00 (2016.01); A61B 34/20 (2016.01)
CPC A61B 17/068 (2013.01) [A61B 17/07207 (2013.01); A61B 2017/0046 (2013.01); A61B 2017/00398 (2013.01); A61B 2017/00473 (2013.01); A61B 2017/00477 (2013.01); A61B 2017/00734 (2013.01); A61B 2017/07271 (2013.01); A61B 2017/2903 (2013.01); A61B 2017/2927 (2013.01); A61B 2017/2943 (2013.01); A61B 2034/2059 (2016.02); A61B 2090/0811 (2016.02); G01D 5/145 (2013.01)] 21 Claims
OG exemplary drawing
 
1. An absolute position sensor system for a surgical instrument, the absolute position sensor system comprising:
a sensor element operatively coupled to a movable drive member of the surgical instrument;
a position sensor operably coupled to the sensor element, the position sensor configured to sense the absolute position of the sensor element by generating a unique position signal for each position of the movable drive member; and
a gear assembly to couple the sensor element to the movable drive member, wherein the gear assembly is located between the sensor element and the movable drive member.