Venous catheter having collapsible multi-lumens

Details Venous catheter having collapsible multi-lumens Venous catheter having collapsible multi-lumens

1981-06-01

1983-09-27

Truluck, Dalton L.

Surgery

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

Treating material introduced into or removed from body...

604 43, 604282, 604 96, 604158, A61M 2500

Patent

active

044066562

ABSTRACT:
A venous catheter having a central flexible lumen with a formed fluid passageway therein and a plurality of collapsible lumens mounted around the periphery of the central flexible lumen also having formed fluid passageways therein. The central flexible lumen being formed of material which is capable of retaining its shape with or without fluid flowing therethrough. Each collapsible lumen being formed from material which is normally collapsed in a small cross-sectional area and which is further capable of expanding when fluid is flowing therein to a cross-sectional area much greater than that when collapsed. The catheter being capable of being inserted through the center of an insertion needle in the collapsed state into the vein of a patient.

REFERENCES:
patent: 1089805 (1914-03-01), Wolf
patent: 1596754 (1926-08-01), Moschelle
patent: 1696018 (1928-12-01), Schellberg
patent: 3433215 (1969-03-01), Silverman
patent: 3605749 (1971-09-01), Heimlich
patent: 3703174 (1972-11-01), Smith
patent: 4072146 (1978-02-01), Howes
patent: 4154227 (1979-05-01), Krause et al.
patent: 4292974 (1981-10-01), Fogarty et al.

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