US Patent No. 11,027,058

INFUSION PUMP ASSEMBLY


Patent No. 11,027,058
Issue Date June 08, 2021
Title Infusion Pump Assembly
Inventorship Gregory R. Lanier, Jr., Merrimack, NH (US)
Larry B. Gray, Merrimack, NH (US)
Richard J. Lanigan, Concord, NH (US)
Dean Kamen, Bedford, NH (US)
Stephen L. Fichera, Salem, NH (US)
John M. Kerwin, Manchester, NH (US)
Assignee DEKA Products Limited Partnership, Manchester, NH (US)

Claim of US Patent No. 11,027,058

1. A wearable infusion pump assembly comprising:a reservoir;
a controller; and
a fluid delivery system configured to deliver an infusible fluid from the reservoir to a fluid delivery system outlet, the fluid delivery system comprising:
at least one sensor assembly including a light emitter and a sensor; and
a pump assembly for extracting a quantity of the infusible fluid from the reservoir and providing the quantity of the infusible fluid to the fluid delivery system outlet,
wherein the at least one sensor assembly includes a first sensor assembly configured to optically sense movement of a displaceable member which is displaced as the infusible fluid is transferred with actuations of the pump assembly, and
wherein the controller is configured to determine when the reservoir is empty based at least in part upon an output of the at least one sensor assembly.