Reservoir plunger position monitoring and medical device incorporating same
US10232112B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2016 |
| Grant date | Mar 19, 2019 |
| Priority date | — |
| Expiry date | Apr 13, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/6081
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Apparatus are provided for infusion devices and related control systems and methods. In one embodiment, an infusion device includes a voided portion adapted to receive a shaft portion that includes a shaft coupled to a plunger of a reservoir. The shaft portion includes a detectable feature, and the infusion device includes a sensing arrangement proximate the voided portion to sense the detectable feature. In some embodiments, a control module is coupled to the sensing arrangement to determine a remaining amount of fluid in the reservoir based at least in part on the sensed position of the detectable feature. In other embodiments, the control module identifies an anomalous condition based at least in part on the sensed position of the detectable feature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.