Constant flow rate liquid medicament administering device

Details Constant flow rate liquid medicament administering device Constant flow rate liquid medicament administering device

1975-05-14

1977-08-23

Pinkham, Richard C.

Surgery

Respiratory method or device

Ozone or ion generation

73271, 128DIG13, 128DIG12, 137225, A61M 500

Patent

active

040433323

ABSTRACT:
A constant flow rate liquid medicament administering device which includes a container having a liquid medicament therein. The liquid medicament is fed under pressure to a constant output flow rate regulator that is operated by a drop in pressure between its inlet and outlet. The liquid leaving the regulator under reduced pressure and at a constant flow rate independent of entering pressure is led to a drip chamber in which any gas entrapped in the liquid is released so as to prevent introduction of gas into a patient. The drip rate in the chamber furnishes a rough visual indication of flow rate, the regulator being adjustable to secure any desired rate. Either before or after passage of the liquid through the drip chamber, the liquid is passed through a flow rate indicator which more accurately provides an instantaneous reading of flow rate. Finally, the liquid is led to an administering implement for introducing the liquid into a patient at a constant flow rate.

REFERENCES:
patent: 2068578 (1937-01-01), Stronach
patent: 2766907 (1956-10-01), Wallace
patent: 3034504 (1962-05-01), Winsor et al.
patent: 3039399 (1962-06-01), Everett
patent: 3123094 (1964-03-01), Toschkoff
patent: 3468308 (1969-09-01), Bierman
patent: 3563090 (1971-02-01), Deltour
patent: 3890968 (1975-06-01), Pierce et al.

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