Patent · US Active

Anesthetic gas intermediate storage unit with adsorption characteristics which can be influenced electrically

US8316851B2 · kind B2 · utility

7Cited by

4References

33Claims

0Family size

Assignee

Dräger Medical GmbH · DE

Inventors

Norbert WRUCK · Lübeck, DE
Michael Riecke · Stade, DE
Götz Kullik · Wulfen, DE

Key dates

Filing date	Sep 11, 2008
Grant date	Nov 27, 2012
Priority date	—
Expiry date	Sep 28, 2031

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2230/437
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

An anesthetic gas intermediate storage unit is provided having a first gas duct for passing through inspiration gas, a second gas duct for passing through expiration gas and an adsorption material (2), which can be influenced electrically, for an anesthetic, which is carried by a gas. The adsorption material is arranged in at least one gas duct for passing through breathing gas, and with a device for admitting expiration gas and inspiration gas alternatingly to the adsorption material (2), at least at an identical area for the intermediate storage of the anesthetic from the expiration gas to the inspiration gas. The device has openings, which divert the expiration gas and inspiration gas flowing in and out such that expiration gas and inspiration gas are admitted to the stationary adsorption material (2) alternatingly at an identical area.

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