EP 0858353 A4 19991201 - OXYGEN CONSERVING DEVICE
Title (en)
OXYGEN CONSERVING DEVICE
Title (de)
SAUERSTOFF KONSERVIERENDE VORRICHTUNG
Title (fr)
ECONOMISEUR D'OXYGENE
Publication
Application
Priority
- US 9616623 W 19961018
- US 561695 P 19951019
Abstract (en)
[origin: WO9714463A1] An oxygen conserving device (10) includes an inlet (26) that communicates with a source of oxygen. An outlet (28) selectively receives a pulsed oxygen flow or continuous flow, depending on the mode of operation of the device. A lever (30) allows manual switching between the continuous flow mode and the pulse mode. A valve (42) is normally closed to prevent communication between the inlet and outlet. The outlet communicates with the mass flow sensor (46) so that a signal is sent to a printed circuit board upon detection of inhalation, which then controls energization of the valve to allow communication between the inlet and outlet for a predetermined period of time, preferably on the order of one second.
IPC 1-7
A61M 16/00; A62B 7/00; A62B 7/04; A62B 9/02; F16K 31/02; F16K 31/26
IPC 8 full level
A61M 16/00 (2006.01); A62B 9/00 (2006.01); A61M 16/06 (2006.01)
CPC (source: EP)
A61M 16/0051 (2013.01); A61M 16/024 (2017.07); A61M 16/0677 (2014.02); A62B 9/00 (2013.01); A61M 16/107 (2014.02); A61M 2016/0021 (2013.01)
Citation (search report)
- [X] EP 0602734 A1 19940622 - METROPOLITAN CLINICAL LAB 1987 [CA]
- [X] US 4823788 A 19890425 - SMITH RICHARD F M [US], et al
- See references of WO 9714463A1
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9714463 A1 19970424; AU 715963 B2 20000210; AU 7449096 A 19970507; EP 0858353 A1 19980819; EP 0858353 A4 19991201; NZ 321230 A 19990830
DOCDB simple family (application)
US 9616623 W 19961018; AU 7449096 A 19961018; EP 96936610 A 19961018; NZ 32123096 A 19961018