Implantable infusion device

Details Implantable infusion device Implantable infusion device

1983-11-23

1986-04-08

Pellegrino, Stephen C.

Surgery

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

Treating material introduced into or removed from body...

604155, 604891, A61M 500

Patent

active

045810184

ABSTRACT:
An improved implantable infusion device for delivering precisely regulated doses of fluid into the body of a patient is disclosed. The device utilizes a resilient non-compliant pump bellows that is directly coupled by a gear train to a motor. The bellows is biased toward the expanded position and this factor, combined with the mechanical inertia of the gear train, substantially eliminates the danger of an overdose of infusate being released into the patient.

REFERENCES:
patent: 3731681 (1973-05-01), Blacksher et al.
patent: 3884228 (1975-05-01), Hahn
patent: 3951147 (1977-03-01), Tucker et al.
patent: 4157716 (1979-06-01), Ruegg
patent: 4221219 (1980-09-01), Tucker
patent: 4274558 (1981-06-01), Clausen
patent: 4360019 (1982-11-01), Portner et al.

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