US5879322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-contained transdermal drug delivery device
Assignee: Alza Corp
•
Filing: 1995-03-24
•
Granted: 1999-03-09
•
Expires: 2015-03-24
Abstract
Abstract A method for manufacturing a transdermal drug delivery device (10) is disclosed wherein a component (32) and/or a subassembly (20) are intentionally adapted to be separable from the rest of the device for disposal which is more medically or environmentally acceptable. In one embodiment, device 10 comprises upper and lower housings (16, 20), with lower housing (20) being separable from upper housing (16) and foldable upon itself to minimize medically unacceptable contact with, e.g., a drug reservoir (26 or 28) contained therein. A device (10) made in accordance with the invention is included.
Inventors
- 👤 Gary A. Lattin
- 👤 Tighe M. Belden
- 👤 Andrew J. Withell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:33
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/0404; A61N1/0408; A61N1/0428; A61N1/0444; A61N1/0432; A61N1/044; A61N1/18; A61N1/20; A61N1/30; A61N1/303; A61N1/32; A61N1/325; A61N1/0448; B; B09; B09B; B09B2101/00; B09B2101/65; B09B2101/68
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
106 words
A method of discarding drug-containing portions of a transdermal electrotransport drug delivery device, the device including an electrical power source, a pair of electrodes electrically connected to the power source and a drug reservoir in electrical contact with one of said electrodes, the drug reservoir being positioned in a housing which is separable from the device, the housing having an adhesive surface, the housing being foldable upon said adhesive surface when the housing is separated from the device, comprising: separating the housing containing the drug reservoir from the device; and folding the separated housing upon itself to adhesively seal the drug reservoir within the folded housing.
Claim 2
Independent Claim
106 words
A method of discarding drug-containing portions of a transdermal electrotransport drug delivery device, the device including an electrical power source, a pair of electrodes electrically connected to the power source and a drug reservoir in electrical contact with one of said electrodes, the drug reservoir being positioned in a housing which is separable from the device, the housing having an adhesive surface, the housing being foldable upon said adhesive surface when the housing is separated from the device, comprising: separating the housing containing the drug reservoir from the device; and folding the separated housing upon itself to adhesively seal the drug reservoir within the folded housing.
Claim 3
Dependent Claim
21 words
The method of claim 1, further including separating the housing from the device by pulling a tab located on the housing.
Claim 4
Dependent Claim
14 words
The method of claim 1, further including a counter electrode reservoir in the housing.
Claim 5
Dependent Claim
38 words
The method of claim 1, further including a donor electrode and the associated drug reservoir in a first part of the housing, and a counter electrode and an associated electrolyte reservoir in a second part of the housing.
Claim 6
Dependent Claim
16 words
The method of claim 4, wherein the housing is folded between the first and second parts.
Claim 7
Dependent Claim
21 words
The method of claim 5, wherein the drug reservoir and the electrolyte reservoir are brought into face-to-face contact after said folding.
Claim 8
Dependent Claim
33 words
The method of claim 1, including operating the device with the housing in place to deliver drug transdermally from the drug reservoir to a patient via electrotransport and thereafter performing said separating step.
Claim 9
Dependent Claim
16 words
The method of claim 7, wherein the adhesive contacts the patient during the electrotransport drug delivery.
Claim 10
Dependent Claim
13 words
The method of claim 1, wherein the housing is comprised of a polymer.
Claim 11
Dependent Claim
17 words
The method of claim 9, wherein the polymer is substantially impermeable to the passage of the drug.
Claim 12
Dependent Claim
9 words
The method of claim 9, wherein polymer comprises polyethylene.
Claim 13
Dependent Claim
19 words
The method of claim 1, wherein the folded housing is discarded separately from the remaining portions of the device.
Claim 14
Dependent Claim
23 words
The method of claim 1, wherein the folded housing allows the drug reservoir to be discarded with minimal contact with the drug reservoir.
Claim 15
Dependent Claim
100 words
The method of claim 1, wherein the device includes an electrical circuit having a pair of circuit outputs, the electrical circuit controlling electrotransport current applied by the device, a pair of electrodes electrically connected to tho circuit outputs and a drug reservoir in electrical contact with one of said electrodes, the electrical circuit being on a substrate positioned in a device housing, the substrate being secured to the housing by means of a manually tearable connection, further comprising: tearing the connections by pulling the substrate from the housing; and separately discarding the substrate from the remaining portions of the device.
Claim 16
Dependent Claim
11 words
The method of claim 14, wherein the substrate comprises a board.
Claim 17
Dependent Claim
32 words
The method of claim 14, wherein the manually tearable connection comprises a polymeric stake passing through the substrate, the end of the stake being melted to secure the substrate on the stake.
Claim 18
Dependent Claim
17 words
The method of claim 16, wherein the manually tearable connection comprises a plurality of said polymeric stakes.
Claim 19
Dependent Claim
12 words
The method of claim 14, wherein the electrical circuit includes a battery.
Claim 20
Dependent Claim
29 words
The method of claim 18, further including separating the battery from the electrical circuit after the tearing and pulling step and disposing the battery separately from the electrical circuit.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-03-08 | 2002-09-07 | 2003-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-03-08 | 2006-09-07 | 2007-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-03-08 | 2010-09-07 | 2011-03-09 | $7700.00 | Window Closed / Lapsed |