Patent · US Active

Conduit with heated wick

US8037882B2 · kind B2 · utility

50Cited by

54References

8Claims

0Family size

Assignee

Fisher & Paykel Healthcare Limited · NZ

Inventors

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

Key dates

Filing date	Oct 14, 2003
Grant date	Oct 18, 2011
Priority date	—
Expiry date	May 31, 2030

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.