Detecting blockage of a reservoir cavity during a seating operation of a fluid infusion device

US10275572B2 · kind B2 · utility

Assignee

• MEDTRONIC MINIMED, INC. · US

Inventors

• Juan M. Alderete, Jr. · San Fernando, US
• Alexander S. Campbell · Calabasas, US
• Steve Ting Kei Chow · San Fernando, US
• Hsiao-Yu S. Kow · Ladera Ranch, US
• Salman Monirabbasi · Culver City, US
• Dmytro Y. Sokolovskyy · San Diego, US
• Andrew E. Weaver · San Fernando, US

Key dates

• Filing date: May 1, 2014
• Grant date: Apr 30, 2019
• Expiry date: Feb 10, 2037

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2205/332
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A fluid infusion device and related operating methods are presented here. An exemplary embodiment of the device includes a drive motor assembly, a force sensor associated with the drive motor assembly, and a reservoir cavity that accommodates fluid reservoirs. An exemplary operating method for the device obtains force measurements for a reservoir seating action of the drive motor assembly, where the force measurements indicate measures of force imparted to the force sensor during the reservoir seating action. The method continues by determining that a vent in the reservoir cavity is blocked, based on an analysis of the force measurements, and by initiating corrective action for the fluid infusion device in response to determining that the vent in the reservoir cavity is blocked.