Controlled dosage drug delivery
First Claim
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1. A method of providing reliable dosage ratings for the administration of therapeutic agents in transdermal iontophoresis devices that include a reservoir for holding a therapeudic agent comprising steps of:
- (a) providing a commonly manufactured lot of galvanic battery power sources each power source including(i) an oxidizable species and a reducible species wherein said self-contained galvanic power source provides the sole source of both the power and control for dosage delivery and contains a lesser amount of a selected one of said oxidizable species and reducible species;
(ii) a common conductor for carrying said oxidizable species and said reducible species;
(b) determining by sample testing in accordance with lot size characteristics of said lot including an average charge capacity for said galvanic battery power sources of said lot to produce a tested lot;
(c) incorporating a galvanic power source from said tested lot into each said device;
(d) labeling a delivery dosage rating for said devices as verified by said average charge capacity of said tested lot.
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Abstract
A planar disposable transdermal iontophoretic delivery system is disclosed which includes amounts of an oxidizable species and a reducible species connected by a common conductor forming a galvanic battery for serving as the sole source of power and control for the system, an amount of a therapeutic agent is provided to be driven through the skin of a patient solely through the use of the galvanic battery. The galvanic battery is provided with a lot-tested coulombic capacity rating to predict dosage.
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Citations
36 Claims
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1. A method of providing reliable dosage ratings for the administration of therapeutic agents in transdermal iontophoresis devices that include a reservoir for holding a therapeudic agent comprising steps of:
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(a) providing a commonly manufactured lot of galvanic battery power sources each power source including (i) an oxidizable species and a reducible species wherein said self-contained galvanic power source provides the sole source of both the power and control for dosage delivery and contains a lesser amount of a selected one of said oxidizable species and reducible species; (ii) a common conductor for carrying said oxidizable species and said reducible species; (b) determining by sample testing in accordance with lot size characteristics of said lot including an average charge capacity for said galvanic battery power sources of said lot to produce a tested lot; (c) incorporating a galvanic power source from said tested lot into each said device; (d) labeling a delivery dosage rating for said devices as verified by said average charge capacity of said tested lot. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of providing reliable dosage ratings for the administration of therapeutic agents in transdermal wearable skin patch iontophoresis devices that include a reservoir for holding a therapeudic agent comprising steps of:
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(a) providing a commonly manufactured, relatively large lot of galvanic battery power sources each power source including (i) an oxidizable species and a reducible species wherein said galvanic power source provides the sole source of both the power and control for dosage delivery and contains a lesser amount of said oxidizable species than said reducible species; (ii) a common conductor for carrying said oxidizable species and said reducible species which are disposed in relation to said conductor so as to be fully consumed, said common conductor corresponding to the reduction product of said reducible species; (b) determining by sample testing in accordance with lot size characteristics of said lot including an average charge capacity for said galvanic battery power sources of said lot to produce a tested lot; (c) incorporating a galvanic power source from said tested lot into each said device; (d) labeling said transdermal iontophoresis device with a delivery dosage rating for said devices as verified by said average charge capacity of said tested lot. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A method of providing a dosage rating for a transdermal iontophoresis therapeutic agent delivery device having a self-contained combined power source a reservoir for holding a therapeudic agent and dosage control system including a galvanic couple source, having electroactive materials disposed so as to be fully consumed, selected from a commonly manufactured relatively large lot of such sources, including the step of sampling and testing average charge capacity of a lot from which said galvanic power source is taken in accordance with lot size and using test results to produce said rating and providing said transdermal iontophoresis with said rating.
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15. A transdermal iontophoretic therapeutic agent delivery device comprising:
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(a) a power source and control system further comprising a galvanic couple power source, wherein said galvanic couple power source alone provides the power for the device and the control for both dosage rate and dosage amount of therapeutic agent delivered; (b) wherein said galvanic couple power source is selected from a manufactured lot of galvanic couples of tested average charge capacity; and (c) a label associated with said delivery device identifying the charge capacity of said delivery system based on average tested charge capacities of a corresponding commonly manufactured lot of galvanic couple power sources from which it was obtained a reservoir for holding a therapeutic agent. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification