Implantable injection body

Details Implantable injection body Implantable injection body

1990-08-06

1991-11-19

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604246, 604263, 6048901, 604265, A61M 514

Patent

active

050662783

ABSTRACT:
An implantable injection body for the time-dependent dosable, long-term injection of a medication into a living being, the medication being stored in an implanted medication dosing device and being supplied by the latter to the injection body via a programmable pump arrangement. The injection body has a plurality of medication discharge openings, at least some of which are initially sealed, by a selectively openable seal, preferably by a dissolvable tissue-compatible, plastic material that dissolves at different times, so that, after closure of the initially unsealed discharge opening caused by overgrowth of connective tissue, agglomeration of matter, and/or the like, the initially sealed discharge openings can be selectively unsealed, preferably in serial fashion, to permit continued medication flow-through. Alternatively, the openable seals can comprise rupturable membranes of varying strengths.

REFERENCES:
patent: 3736939 (1973-06-01), Taylor
patent: 4055178 (1977-10-01), Harrigan
patent: 4306563 (1981-12-01), Iwatschenko
patent: 4578063 (1986-03-01), Inman et al.
patent: 4642230 (1987-02-01), Whitehead et al.
patent: 4643712 (1987-02-01), Kulik et al.
patent: 4692152 (1987-09-01), Emde
patent: 4936835 (1990-06-01), Haaga
patent: 4976703 (1990-12-01), Franetzki et al.

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