Implantable infusion apparatus

Details Implantable infusion apparatus Implantable infusion apparatus

1988-06-20

1990-12-18

Rosenbaum, C. Fred

Surgery

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

Treating material introduced into or removed from body...

604132, 604 86, A61M 500

Patent

active

049783386

ABSTRACT:
Implantable infusion apparatus includes a housing with an inlet passage extending into the housing at a pronounced promontory on the housing wall. The passage has an outer end at the top of the promontory and an inner end defined by a needle stop positioned inside the housing. Self-sealing septa mounted in the passage at selected spacings from the needle stop divide the passage into a plurality of aligned inlet ports each of which has its own fluid outlet. One of the outlets leads to a pumpable infusate reservoir having an outlet conduit connected to a catheter that extends outside the housing; another leads directly to the outlet conduit so that while a first fluid is being pumped from the reservoir to the catheter, a second fluid can be introduced into the other inlet port for mixing with the first fluid flowing to the catheter. Several different infusate flow configurations are also disclosed.

REFERENCES:
patent: 3552441 (1971-01-01), Luhleich
patent: 3730170 (1973-05-01), Michael
patent: 3731681 (1973-05-01), Blackshear et al.
patent: 4193397 (1980-03-01), Tucker
patent: 4258711 (1981-03-01), Tucker
patent: 4496343 (1985-01-01), Prosl
patent: 4525165 (1985-06-01), Fischell
patent: 4692146 (1987-09-01), Hilger

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