Pressure infusion apparatus

Details Pressure infusion apparatus Pressure infusion apparatus

1989-08-15

1990-11-06

Smith, Leonard E.

Pumps

Expansible chamber type

Elongated flexible chamber wall progressively deformed

417477, F04B 4312

Patent

active

049682296

ABSTRACT:
To enable geriatric or morbid users to be able to insert a delivery tube (11) into a pressure infusion apparatus (1) between the delivery or pumping mechanism (3, 23) and pressure or application means (2, 22, 32) a cam plate is arranged which bears with a portion of its outer periphery on the pressure means which presses against the action of a spring against the cam plate. Via rotation direction-dependent drivers (8) the cam plate is connected to the delivery mechanism (3, 23) in such a manner that for a given direction of rotation the delivery mechanism (3, 23) and the pressure means can be moved towards or away from each other.

REFERENCES:
patent: 4025241 (1977-05-01), Clemens
patent: 4138205 (1979-02-01), Wallach
patent: 4184815 (1980-01-01), Casson et al.
patent: 4191184 (1980-03-01), Carlisle
patent: 4218197 (1980-08-01), Meyer et al.
patent: 4256442 (1981-03-01), Lamadrid et al.
patent: 4472116 (1984-09-01), Wenstrup
patent: 4472117 (1984-09-01), Wenstrup
patent: 4552516 (1985-11-01), Stanley
patent: 4558996 (1985-12-01), Becker
patent: 4813855 (1989-03-01), Leveen et al.
patent: 4824339 (1989-04-01), Bainbridge et al.
patent: 4861242 (1989-08-01), Finsterwald

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