US 11,997,806 B2
Energy management based on an open switch configuration
Jesse M. Hefner, Minneapolis, MN (US); Ellis Garai, Woodland Hills, CA (US); Al L. Mclevish, Roseville, MN (US); Brian J. Ferry, Saint Louis Park, MN (US); Philip R. Glassel, Stacy, MN (US); Paul W. Chevalier, Minnetonka, MN (US); and David Y. Choy, San Gabriel, CA (US)
Assigned to Medtronic MiniMed, Inc., Northridge, CA (US)
Filed by Medtronic MiniMed, Inc., Northridge, CA (US)
Filed on Apr. 26, 2022, as Appl. No. 17/729,600.
Prior Publication US 2023/0345650 A1, Oct. 26, 2023
Int. Cl. A61B 5/00 (2006.01); H01H 13/14 (2006.01); H05K 5/02 (2006.01)
CPC H05K 5/0217 (2013.01) [A61B 5/6848 (2013.01); H01H 13/14 (2013.01); A61B 2560/0214 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A sensor assembly for sensing a physiological characteristic, comprising:
a housing configured to be removably coupled to an introducer device for transitioning the sensor assembly from a pre-deployment state wherein the housing is coupled to the introducer device, to a deployed state wherein the housing is decoupled from the introducer device and deployed to a user;
a power source enclosed within the housing;
an electrical subsystem enclosed within the housing and coupled to the power source, the power source configured to deliver power to one or more components of the electrical subsystem when the sensor assembly is in the deployed state for causing the sensor assembly to sense a physiological characteristic of the user;
a power control circuit enclosed within the housing and coupled to the power source, the power control circuit including:
a power control switch coupled to the power source;
a power latch configured to latch an output of the power control switch to generate a latched output; and
a power converter coupled to the power control switch and configured to step down a voltage of the latched output of the power control switch for delivery of the latched output to one or more components of the electrical subsystem; and
a switch electrically coupled to the power source and configured to transition from a disabled state to an enabled state upon transition of the sensor assembly from the pre-deployment state to deployed state, wherein the power control switch is configured to inhibit delivery of power from the power source to the electrical subsystem when the switch is in the disabled state and output the latched output to the power converter in response to the transition of the switch from the disabled state to the enabled state for delivery of the latched output to the one or more components of the electrical subsystem.