Implantable infusion device

Details Implantable infusion device Implantable infusion device

1991-02-15

1993-01-19

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604167, 604175, A61H 1100

Patent

active

051803658

ABSTRACT:
An infusion port designed for the introduction of a catheter for fluid infusion or removal or other flexible filaments within a patient. The infusion port is buried subcutaneously and accessed using a needle which introduces the filament. The infusion port has means to prevent the introducing needle from being inserted past a certain point within the port whereas the introduced flexible element can be inserted beyond that point and is caused to be forced through an articulating valve. The valve of this disclosure features enhancements in its sealing ability and in some embodiments provides a differing level of frictional engagement with the filament upon insertion versus withdrawal. The infusion port of this invention also has design features which provide a relatively small distance between the surface of the skin and the position of the articulating catheter valve through which the introduced filament passes.

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