Sleeve valve for parenteral solution device

Details Sleeve valve for parenteral solution device Sleeve valve for parenteral solution device

1980-09-09

1982-08-31

Truluck, Dalton L.

Surgery

Respiratory method or device

Ozone or ion generation

13751615, 137860, A61M 514

Patent

active

043467040

ABSTRACT:
A sleeve valve is carried in a parenteral solution administration device. The valve comprises an outer housing (30) defining an outlet tube (28); an inner tubular support (38) defining an inlet tube (45) and a closed forward end positioned within the outlet tube. Lateral aperture means (46) are provided in the tubular support, and an elastic tube (40) surrounds the inner tubular support to cover the lateral apertures. The inner tubular support is free of elastic, tube-retaining structures at its closed end, and is adapted to permit the elastic tube to be laterally slidable on the inner, tubular support through a limited distance. The outer housing defines vanes (44) to limit the lateral advancement of the elastic tube on the support, while shoulder means (42) are positioned about the support to limit the lateral retraction of the elastic tube away from the closed end. Accordingly, pressurized fluid flow though the inlet tube causes expansion of the elastic tube by pressure to permit fluid flow between the tube and tubular support out of both ends of the elastic tube. The valve can have higher flow rates at lower pressures, while at the same time having a lower residual volume.

REFERENCES:
patent: 2538662 (1951-01-01), Abbott
patent: 2551315 (1951-05-01), Christopher et al.
patent: 2743724 (1956-05-01), Gispen
patent: 3459217 (1969-08-01), Callahan
patent: 3601151 (1971-08-01), Winnard
patent: 3794043 (1974-02-01), McGinnis
patent: 4063555 (1977-12-01), Ulinder
patent: 4290454 (1981-09-01), Shetler

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