Patent · US Active

Device and process for breath-supporting respiration

US7798145B2 · kind B2 · utility

38Cited by

5References

9Claims

0Family size

Assignee

Dräger Medical AG & Co. KG · DE

Inventors

Dieter Weismann · Gronau, DE
Hermann HOPERMANN · Badendorf, DE

Key dates

Filing date	Jul 31, 2006
Grant date	Sep 21, 2010
Priority date	—
Expiry date	Jun 28, 2029

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2016/0042
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A respirator for breath-supporting respiration has improved sensitivity of triggering breathing support. A pre-inspiratory inspiratory gas flow is set, which flows off via the expiration valve (9). The closing pressure pv of the expiration valve is measured with a pressure sensor (11) in the process. The gas flow is increased in case of an inspiratory effort of the patient to the extent that the closing pressure pv of the expiration valve (9) is restored. Breath support is generated when the difference between the preset gas flow and the gas flow that is needed to maintain the closing pressure pv at a constant level exceeds a predetermined threshold value.

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