US 12,419,581 B2
Wireless measurement of suture tension
Keat Ghee Ong, Eugene, OR (US); Salil Sidharthan Karipott, Eugene, OR (US); Robert Erling Guldberg, Eugene, OR (US); and Kaylee M. Meyers, Eugene, OR (US)
Assigned to UNIVERSITY OF OREGON, Eugene, OR (US)
Filed by University of Oregon, Eugene, OR (US)
Filed on Jan. 23, 2025, as Appl. No. 19/035,284.
Application 19/035,284 is a continuation of application No. 18/682,599, previously published as PCT/US2022/039799, filed on Aug. 9, 2022.
Claims priority of provisional application 63/347,122, filed on May 31, 2022.
Claims priority of provisional application 63/231,102, filed on Aug. 9, 2021.
Prior Publication US 2025/0195004 A1, Jun. 19, 2025
Int. Cl. A61B 5/00 (2006.01); A61B 5/07 (2006.01); A61B 17/06 (2006.01); A61B 17/00 (2006.01); A61B 90/00 (2016.01)
CPC A61B 5/6883 (2013.01) [A61B 5/076 (2013.01); A61B 5/4523 (2013.01); A61B 5/486 (2013.01); A61B 17/06166 (2013.01); A61B 2017/00004 (2013.01); A61B 2090/064 (2016.02); A61B 2562/164 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A sensor assembly, comprising:
a suture button defining two openings for receiving a suture; and
a suture button adapter comprising:
one or more openings for receiving the suture; and
an enclosure configured to deform in response to a tensile force applied by the suture via the suture button and enclosing:
a deformable member comprising a top surface and a bottom surface; and
a resonant circuit comprising at least one inductor and a resistive transducer, wherein:
the resistive transducer is coupled to the bottom surface of the deformable member;
the at least one inductor is electronically connected to the resistive transducer and extends around a perimeter of the deformable member;
the resonant circuit is configured to electrically resonate at a resonant frequency when exposed to a first electromagnetic field and to emit a second remotely detectable electromagnetic field, the resonant circuit having a resistance that varies in response to a deformation, such that the resonant circuit has a resonant quality factor determined at least by an inductance of the at least one inductor, a capacitance, and the resistance of the resistive transducer;
deformation of the enclosure deforms the deformable member and the resistive transducer, thereby changing the resistance of the resistive transducer and the resonant quality factor of the resonant circuit; and
the resonant frequency of the resonant circuit is determined at least in part by the inductance of the at least one inductor and an inherent parasitic capacitance of the at least one inductor.