US 12,226,798 B2
Power console for a surgical tool that includes a transformer with an integrated current source for producing a matched current to offset the parasitic current
Adam Darwin Downey, Kalamazoo, MI (US)
Assigned to Stryker Corporation, Portage, MI (US)
Filed by Stryker Corporation, Kalamazoo, MI (US)
Filed on Jun. 12, 2023, as Appl. No. 18/208,523.
Application 18/208,523 is a continuation of application No. 16/303,026, granted, now 11,673,163, previously published as PCT/US2017/034437, filed on May 25, 2017.
Claims priority of provisional application 62/343,433, filed on May 31, 2016.
Prior Publication US 2023/0321689 A1, Oct. 12, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. B06B 1/02 (2006.01); A61B 17/32 (2006.01); B06B 1/06 (2006.01); H01F 27/30 (2006.01); H03H 5/02 (2006.01); A61B 17/00 (2006.01); A61B 18/00 (2006.01)
CPC B06B 1/0276 (2013.01) [A61B 17/320068 (2013.01); B06B 1/0614 (2013.01); H01F 27/306 (2013.01); H03H 5/02 (2013.01); A61B 2017/00199 (2013.01); A61B 2017/00411 (2013.01); A61B 2018/00869 (2013.01); B06B 2201/76 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A control console for supplying a drive signal to the power generating unit of a surgical tool, said console including:
a transformer with a primary winding across which an AC voltage is applied; and a secondary winding across which a drive signal is induced so the drive signal can be applied to the power generating unit of the surgical tool; and
a matched current source comprising a leakage control winding across which the AC voltage that is present across the primary winding induces a voltage and a capacitor connected between the leakage control winding and the transformer secondary winding, the matched current source designed to produce a current that at least partially cancels a leakage current present in the drive signal as a result of parasitic capacitance,
wherein both the leakage control winding and the capacitor of the matched current source are internal to the transformer.