Patent · US Active

Conduit with heated wick

US9827393B2 · kind B2 · utility

20Cited by

61References

22Claims

0Family size

Assignee

Fisher & Paykel Healthcare Limited · NZ

Inventors

Daniel John Smith · Auckland, NZ
David Peter Baldwin · Auckland, NZ

Key dates

Filing date	Oct 12, 2011
Grant date	Nov 28, 2017
Priority date	—
Expiry date	Apr 30, 2033

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2207/10
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A conduit for a breathing circuit includes a heater associated, at least in part, with a hydrophilic layer. The purpose of the heater is to evaporate any condensed liquid collecting in the conduit, which is first sucked up by the hydrophilic layer. The heated wick reduces the risk of collected water being passed to the patient and causing choking fits or discomfit. It is preferred that the heated wick lies freely in the conduit to settle at low points in the conduit where condensation may collect.

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