Surgery – Respiratory method or device
Patent
1992-04-14
1993-09-14
Burr, Edgar S.
Surgery
Respiratory method or device
12820512, 12820528, A61M 1500
Patent
active
052439690
ABSTRACT:
An air-cleaning cartridge for treating respiration air with a chemical as a packing, whose housing wall consists at least partially of an expandable, elastic material, is to be improved such that the size can be increased in a controlled manner prior to filling with the chemical, in order to achieve a reproducible contracting force of the expanded housing and in order to prolong the ready-to-use storage time of the cartridge. To achieve this, a pressure connection 7, through which a compressed gas can be introduced into the housing designed as a film bag 1, 1' in order to expand it to a predetermined volume, can be connected to one of the connections 2. The chemical 5 is filled from the filling chamber 3 into the pressurized, expanded film bag 1. After releasing the internal pressure into the atmosphere, the film bag tightly surrounds the packing introduced on all sides (Figure).
REFERENCES:
patent: 3340671 (1967-09-01), Loo
patent: 3646726 (1972-03-01), Hutcheson
patent: 3978901 (1976-09-01), Jones
patent: 3982573 (1976-09-01), Jones
patent: 4632244 (1986-12-01), Landan
patent: 4924919 (1990-05-01), Oyler
patent: 4974393 (1990-12-01), Rich et al.
Jumpertz Werner
Sartor Werner
Burr Edgar S.
Dragerwerk Aktiengesellschaft
Lewis Aaron J.
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