Surgery – Truss – Pad
Patent
1976-07-28
1978-02-28
Pellegrino, Stephen C.
Surgery
Truss
Pad
92 137, 92 13R, A61M 1600
Patent
active
040760219
ABSTRACT:
This invention is a positive pressure respiratory apparatus to cyclically pump proper volumes of air for inspiration by a patient, through a breathing tube extended to the patient. The unit, formed in a compact package, includes a pump, a piston within a cylinder and a breathing tube extending from the cylinder to the patient. The cylinder volume does not greatly exceed the proper volume of air for inspiration by a patient. The piston is cyclically reciprocated within the cylinder at a rate which corresponds to natural or selected inspiration and exhalation breathing cycles of the patient, and this piston moves in the cylinder a distance sufficient to displace the aforesaid volume of air. A valving means permits air to enter the cylinder during the patient's exhalation cycle of breathing when the piston moves away from the cylinder end and to confine the flow of air to the breathing tube during the inspiration cycle, when the piston moves towards the cylinder end wall.
This unit is adapted to operate on a common 110 volt A.C. current supply or upon batteries. The power consumption is minimal, so that the unit may operate for as long as 24 hours on a storage battery and as long as an hour on a few small flashlight batteries conveniently carried in the case of the unit. This permits the apparatus to continue to operate even when the user is taking short trips where he is away from his regular power source.
REFERENCES:
patent: 2841991 (1958-07-01), Saalfrank
patent: 3087707 (1963-04-01), Seeler
patent: 3613677 (1971-10-01), Blasko
patent: 3651804 (1972-03-01), Spiller
patent: 3818806 (1974-06-01), Fumagalli
Pellegrino Stephen C.
Recla Henry J.
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