Patent · US Active

Device and method for determining leaks of a respirator

US7882835B2 · kind B2 · utility

24Cited by

7References

8Claims

0Family size

Assignee

Dräger Medical GmbH · DE

Inventors

Marcus Eger · Stade, DE
Dieter Weismann · Gronau, DE

Key dates

Filing date	Oct 31, 2006
Grant date	Feb 8, 2011
Priority date	—
Expiry date	Jun 22, 2029

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2205/15
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A method, system and device are provided for the determination of leaks in a respirator. An inspiraton pressure pinsp is recorded during an inspiration time Tinsp with a measuring device. The inspiration pressure pinsp is varied during consecutive breaths I. Leaks are determined as to leak volumes VLi from the product of pinspi and Tinspi in accordance with the equationVLi=A×pinspiB×Tinspi while the parameters A and B are determined in an analyzing unit by a regression model with pinsp as the regressor.

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