Transdermal drug delivery device with waveshape generator

Details Transdermal drug delivery device with waveshape generator Transdermal drug delivery device with waveshape generator

1994-01-13

1996-03-19

Rosenbaum, C. Fred

Surgery

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

Infrared, visible light, ultraviolet, x-ray or electrical...

607 72, A61N 130

Patent

active

054999677

ABSTRACT:
The device comprises a switched-mode power supply (1) equipped with an electronic switching member (T.sub.1), the closing of which controls the power supply to an inductor (L.sub.1) which discharges, when the member reopens, into a capacitor (C.sub.1) at the terminals of which the output voltage of the device appears, characterized in that it comprises (a) storage means for recording a sequence of image numbers of successive segments of the predetermined waveform, (b) a clocked digital counter (2) and (c) means (3) for successively loading this counter (2) with each of the numbers of this sequence considered as a bound of the count performed by the counter (2), the latter cyclically controlling the closing of the switching member (T.sub.1) for a predetermined time interval, each time the count performed reaches the limit thus fixed.

REFERENCES:
patent: 3970919 (1976-07-01), Butcher
patent: 4019510 (1977-04-01), Ellis
patent: 4141359 (1979-02-01), Jacobsen et al.
patent: 4301794 (1981-11-01), Tapper
patent: 4340047 (1982-07-01), Tapper et al.
patent: 4406658 (1983-09-01), Lattin et al.
patent: 4764164 (1988-08-01), Sasaki
patent: 4895153 (1990-01-01), Takeuchi et al.
patent: 5002527 (1991-03-01), Reller et al.
patent: 5213568 (1993-05-01), Lattin et al.
patent: 5246418 (1993-09-01), Haynes et al.
`Study Of The Mechanisms Of Flux Enhancement Through Hairless Mouse Skin By Pulsed DC Iontophoresis`, Pikal and Shah, Pharmaceutical Research, vol. 8, No. 3, 1991, pp. 365-369.
`Facilitated Transdermal Delivery Of Therapeutic Peptides And Proteins By Iontophoretic Delivery Devices`, Chien et al, Journal of Controlled Release, 13 (1990), pp. 263-278.

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