Vena cava window

Details Vena cava window Vena cava window

1988-10-24

1990-06-26

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604 53, 604175, A61M 3100

Patent

active

049368265

ABSTRACT:
The invention is a combination device for long-term intravenous therapy comprising an outer sheath 11 and an inner catheter 15. The outer sheath 11 is permanently implanted in the patient allowing repeated or continuous access to the venous system. Inner catheter 15 is inserted into the outer sheath and comprises several conventional configurations such as single lumen, dual lumen, depending on the particular therapy. When therapy is complete, or when needed to avoid blockage by clotting or infection resulting from contamination, the inner catheter may be removed. When the inner catheter 15 is not in place, the sheath 11 is sealed at the proximal or skin-surface end by cap 16. The cap provides a flat, inconspicuous surface which may be covered with a small bandage. In this configuration, the patient is also protected from injury in that the likelihood of physical damage to protruding hardware is minimized. The present invention permits home therapy, including insertion and removal of catheters (using sterile techniques) by non-medical assistants.

REFERENCES:
patent: 4392855 (1983-07-01), Oreopoulos et al.
patent: 4406656 (1983-09-01), Hattler et al.
patent: 4431426 (1984-02-01), Groshong et al.
patent: 4437857 (1984-03-01), Goldstein et al.
patent: 4583968 (1986-04-01), Mahurkar
patent: 4626240 (1986-12-01), Edelman et al.
patent: 4665925 (1987-05-01), Millar

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