Novel drug delivery device

Details Novel drug delivery device Novel drug delivery device

1974-08-28

1976-04-06

Trapp, Lawrence W.

Surgery

Truss

Pad

128130, 128260, 128271, 3 1, 424 22, A61F 546, A61M 3100

Patent

active

039482545

ABSTRACT:
A drug delivery device for administering a drug at a controlled rate for a prolonged period of time to produce a local or systemic physiological or pharmacological effect is comprised of a wall surrounding a reservoir containing a drug. The reservoir is formed of a solid drug carrier permeable to the passage of the drug. The wall is formed in at least a part of a microporous material the pores of which contain a drug release rate controlling medium also permeable to the passage of the drug, but the rate of passage of the drug through the medium is lower than the rate passage of the drug through the solid drug carrier so that drug release by the medium in the microporous wall is the drug release rate controlling step for releasing drug from the drug delivery device.

REFERENCES:
patent: 2962023 (1960-11-01), Chappaz et al.
patent: 3757798 (1973-09-01), Lambert
patent: 3760805 (1973-09-01), Higuchi
patent: 3845770 (1974-11-01), Theeuwes et al.
patent: 3880991 (1975-04-01), Yolles
patent: 3888975 (1975-06-01), Ramwell

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