Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure
Patent
1992-09-15
1994-05-24
Wiecking, David A.
Surgery
Respiratory method or device
Means for supplying respiratory gas under positive pressure
12820513, 12820524, A62B 700, A62B 902
Patent
active
053139380
ABSTRACT:
A cardiopulmonary resuscitating pump, comprising, a housing having a top wall (20), a bottom wall (21) and a side wall (22) in the form of a bellows which is capable of contracting and expanding under the application and release of an externally applied pressure to contract and expand the volume of a gas chamber (23) within the housing and having a gas inlet (48) through the bottom wall for drawing gas into the gas chamber and a gas outlet (43) through the bottom wall for discharging gas from the gas chamber to an associated oropharyngeal airway, whereby, in use a patient can be subjected to ventilation and external cardiac massage by appropriate operation of the pump whilst situated on the patient's chest. A waste chamber (29) is also provided attached to the bottom wall and communicating, via a waste inlet (52) through the bottom wall, with the associated oropharyngeal airway whereby to suck secretions from the patient whilst cardiac massage and ventilation is occurring and to expel secretions through a waste outlet (47) through the bottom wall. Biasing springs ( 24 and 33) are provided in both the gas and waste chamber to assist in expanding the volume of the chambers upon release of the externally applied pressure, and all inlets and outlets contain check valves (42, 46, 49 and 53) to prevent reverse flow therethrough.
REFERENCES:
patent: 2547 (1842-04-01), Welchman
patent: 2737177 (1956-03-01), Anklin
patent: 3215413 (1965-11-01), Mota
patent: 3323521 (1967-06-01), Isk
patent: 3336920 (1967-08-01), Thomas
patent: 3530857 (1970-09-01), Miczka
patent: 3782371 (1974-01-01), Derouineau
patent: 3882860 (1975-05-01), Frimberger
patent: 3965893 (1976-06-01), Ragailler
patent: 4297999 (1981-11-01), Kitrell
patent: 4349015 (1982-09-01), Alferness
patent: 4570615 (1986-02-01), Barkalow
patent: 4934360 (1990-06-01), Heilbron et al.
Cook David J.
de Vriend Max S.
Garfield Allan S.
White Noam
Asher Kimberly L.
Garfield Allen Samuel
Wiecking David A.
LandOfFree
Valved resuscitation pump having secretion removal means does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Valved resuscitation pump having secretion removal means, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Valved resuscitation pump having secretion removal means will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1966319