Surgery – Means for introducing or removing material from body for... – Infrared – visible light – ultraviolet – x-ray or electrical...
Patent
1989-02-22
1990-06-05
Cohen, Lee S.
Surgery
Means for introducing or removing material from body for...
Infrared, visible light, ultraviolet, x-ray or electrical...
128419R, 128 80B, A61N 130
Patent
active
049310461
ABSTRACT:
A transdermal medication delivery system in which the medication is retained in a non-charged form such that it can be electrically charged. A d-c electrical current is supplied through the retained medication when it is in its electrically charged form and current control is used to control the current level. The electrical current supply circuit, the control circuit, the retained charged medication, and the body location of a patient to which the medication is to be delivered transdermally, form a closed loop during operation so that the current is maintained at a substantially constant level while being delivered to the body location. Such delivery can be terminated if the current exceeds a maximum allowable level.
REFERENCES:
patent: 3163166 (1964-12-01), Brant et al.
patent: 4141359 (1979-02-01), Jacobsen et al.
patent: 4702732 (1987-10-01), Powers et al.
patent: 4708716 (1987-11-01), Sibalis
Spencer, "Programmable . . . Iontophoresis", Med & Biol. Eng., vol. 9, pp. 683-702, 1971.
Cohen Lee S.
O'Connell Robert F.
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