Wearable, variable rate suction/collection device

Details Wearable, variable rate suction/collection device Wearable, variable rate suction/collection device

1985-09-16

1987-12-01

Picard, Leo P.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604 31, 604 50, A61M 514

Patent

active

047101652

ABSTRACT:
A compact, lightweight, variable rate suction and collection device is provided for the withdrawal and collection of fluid from a patient. The device includes a collection receptacle which is connected to the patient and to a pump through suction inlet, so that suction is created within the collection receptacle whereby fluids from the patient are drawn into the receptacle. A piezoelectric transducer or diaphragm pressure switch senses the suction created while a suction level selector permits an operator to select a given suction pressure within a predetermined range. A control circuit, responsive to the piezoelectric transducer or switch and to the suction level selector, controls the suction created within the receptacle. Among other features, the control circuit provides a selected suction pressure as well as controls delivery of fractional power to the pump motor to reduce noise. The entire unit including the pump and collection receptacle may be located within a carrying case so that the unit can be worn by a patient or hung at a patient's bedside.

REFERENCES:
patent: 3142298 (1964-07-01), Koshi et al.
patent: 3812855 (1974-05-01), Banko
patent: 3882861 (1975-05-01), Kettering et al.
patent: 3918453 (1975-11-01), Leonard
patent: 4180074 (1979-12-01), Murry et al.
patent: 4261360 (1981-04-01), Perez
patent: 4443218 (1984-04-01), Decant, Jr. et al.
patent: 4444545 (1984-04-01), Sanders et al.
patent: 4468219 (1984-08-01), Georg et al.

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