Patent · US Active

Flow detector

US11446436B2 · kind B2 · utility

1Cited by

2References

16Claims

0Family size

Assignee

Roche Diabetes Care, Inc. · US

Inventors

Hans List · Prien am Chiemsee, DE
Frederic Wehowski · Hockenheim, DE

Key dates

Filing date	Jul 6, 2017
Grant date	Sep 20, 2022
Priority date	—
Expiry date	Feb 1, 2039

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2205/3368
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

Disclosed is a flow detector (1) for releasable coupling with a flow channel (20) in a channel coupling area and detecting a flow of liquid drug in the flow channel (20), the flow detector including: an upstream thermoelectric element (10a) and a downstream thermoelectric element (10b), wherein the upstream thermoelectric element (10a) and the downstream thermoelectric element (10b) are arranged spaced apart from each other and movable independent from each other; an upstream biasing element (15a) and a downstream biasing element (15b), wherein the upstream biasing element (15a) acts on the upstream thermoelectric element (10a), thereby biasing the upstream thermoelectric element (10a) towards the channel coupling area, and the downstream biasing element (15b) acts on the downstream thermoelectric element (10b), thereby biasing the downstream thermoelectric element (10b) towards the channel coupling area independently from the upstream biasing element (15a).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.