Manually actuated, implantable device to sequentially feed doses

Details Manually actuated, implantable device to sequentially feed doses Manually actuated, implantable device to sequentially feed doses

1986-05-21

1988-01-12

Truluck, Dalton L.

Surgery

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

Treating material introduced into or removed from body...

604185, 6048911, A61M 500

Patent

active

047188944

ABSTRACT:
The invention concerns a sequential and manually actuated feed device for implantation in an accessible subcutaneous region of a patient for the purpose of sequentially dosing a liquid, in particular a therapeutant. This device comprises a reservoir consisting of a flexible pouch, a filling site (2) located at the rim of said pouch in order to inject the liquid into it, and a manual pump (3) located in the opposite zone of the pouch in order to supply the liquid dose by dose to a catheter (20). The pump has a rigid case with a recess and bearing an expulsion membrane so as to bound a volume chamber; safety means prevent any accidental injection in the event of a spurious pressure exerted on the flexible pouch.

REFERENCES:
patent: 4548607 (1985-10-01), Harris
patent: 4588394 (1986-05-01), Schulte et al.

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