DISAMODHA C AMARASINGHE
Pharmacy in Virginia Beach, VA

4553543, Nov 19, 1985

Mar 5, 1984

6/586473

Disamodha C. Amarasinghe - Virginia Beach VA

A61B 1704

128334R

A slotted, partially-flared, cylindrically shaped core 12 is mounted inside a tubularly-shaped sleeve 20 with a flared end portion 16 extending out the end of the sleeve 20. A flexible needle 24, which is longer than either the core or the sleeve, is held in each of the core slots 18 by the sleeve, but is allowed freedom of longitudinal movement. Threads 32 attached to the needles are inserted through a wall of a tubular body duct by inserting the flared end portion of the core into the body duct and then forcing the needles to move longitudinally in the slots against the flared end portion so that they bend radially outwardly through the walls of the body duct.

4936826, Jun 26, 1990

Oct 24, 1988

7/261736

Disamodha C. Amarasinghe - Virginia Beach VA

A61M 3100

604 52

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.