US 12,343,011 B2
Devices, systems, and methods for detecting tissue and foreign objects during a surgical operation
Zhijun Liu, Mason, OH (US); Christopher J. Waid, Cincinnati, OH (US); Patrick L. Creamer, New Orleans, LA (US); Morgan R. Hunter, Cincinnati, OH (US); Nathan P. K. Nguyen, Austin, TX (US); Kevin D. Felder, Cincinnati, OH (US); James M. McKale, Cincinnati, OH (US); Jeffrey S. Swayze, West Chester, OH (US); Simon L. Calcutt, London (GB); Elisa J. Barber, Bury St. Edmunds (GB); Matthew K. Sadler, Mildenhall (GB); Richard D. Lintern, Cambridge (GB); James Richardson, Cambridge (GB); Rita Stella, Cambridge (GB); and Mikhail E. Bashtanov, Cambridge (GB)
Assigned to CILAG GMBH INTERNATIONAL, Zug (CH)
Filed by Cilag GmbH International, Zug (CH)
Filed on Feb. 26, 2024, as Appl. No. 18/586,743.
Application 18/586,743 is a continuation of application No. 17/965,336, filed on Oct. 13, 2022, granted, now 11,957,342.
Claims priority of provisional application 63/330,502, filed on Apr. 13, 2022.
Claims priority of provisional application 63/274,207, filed on Nov. 1, 2021.
Prior Publication US 2024/0277336 A1, Aug. 22, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 17/072 (2006.01); A61B 34/30 (2016.01); A61B 17/00 (2006.01); A61B 17/068 (2006.01); A61B 17/115 (2006.01)
CPC A61B 17/072 (2013.01) [A61B 17/07207 (2013.01); A61B 34/30 (2016.02); A61B 2017/00026 (2013.01); A61B 2017/00119 (2013.01); A61B 17/068 (2013.01); A61B 2017/07214 (2013.01); A61B 2017/07271 (2013.01); A61B 17/115 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A surgical instrument, comprising:
an end effector comprising jaws configured to transition between an opened condition and a closed condition;
a plurality of electrodes positioned within the jaws of the end effector, wherein each electrode of the plurality of electrodes is positioned about a longitudinal axis defined by the end effector;
a control circuit and a memory configured to store an algorithm configured to cause the control circuit to:
receive signals from the plurality of electrodes;
determine a first impedance signal based on the signals received from the plurality of electrodes;
detect a foreign object associated with tissue positioned between the jaws of the end effector based on the first impedance signal; and
generate an alert associated with the foreign object.