US5830502A
Expired / Lapsed
US
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Injection-molded dosage form
Assignee: Encinal Pharmaceutical Investments LLC
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Filing: 1996-11-05
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Granted: 1998-11-03
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Expires: 2016-11-05
Abstract
Abstract A dosage form is disclosed comprising an injection-molded housing member free of organic solvents.
Inventors
- 👤 Liang C. Dong
- 👤 Patrick S. L. Wong
- 👤 Crystal Pollock
- 👤 Vincent J. Ferrari
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:31
CPC Classifications
A; A61; A61K; A61K9/00; C; C08; C08L; C08L67/00; C08L67/04; A61K47/00; A61K47/30; A61K47/34; A61K47/36; A61K47/38; A61K9/0002; A61K9/0004; A61K9/20; A61K9/2095; B; B01; B01D; B01D71/00; B01D71/06; B01D71/48; C08L71/00; C08L71/02; C08L1/00; C08L1/08; C08L1/26; C08L1/28; C08L1/284
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
99 words
A dosage form for delivering a therapeutic agent to an environment of use, the dosage form comprising: (a) an internal compartment; (b) a therapeutic composition comprising a therapeutic agent in the compartment; (c) an expandable composition comprising means for pushing the therapeutic composition from the dosage form in the compartment; (d) exit means in the dosage form that connects the therapeutic composition with the environment of use, and wherein the dosage form comprises: (e) an injection-molded membrane comprising a thermoplastic polycaprolactone, which injection-molded membrane is permeable to the passage of fluid and surrounds, defines and forms the internal compartment.
Claim 2
Dependent Claim
99 words
A dosage form for delivering a therapeutic agent to an environment of use, the dosage form comprising: (a) an internal compartment; (b) a therapeutic composition comprising a therapeutic agent in the compartment; (c) an expandable composition comprising means for pushing the therapeutic composition from the dosage form in the compartment; (d) exit means in the dosage form that connects the therapeutic composition with the environment of use, and wherein the dosage form comprises: (e) an injection-molded membrane comprising a thermoplastic polycaprolactone, which injection-molded membrane is permeable to the passage of fluid and surrounds, defines and forms the internal compartment.
Claim 3
Dependent Claim
34 words
The dosage form for delivering the therapeutic agent according to claim 1; wherein the injection-molded membrane comprises a polycaprolactone copolymer with a member selected from the group consisting of dilactide, diglycolide, valerolactone and decalactone.
Claim 4
Dependent Claim
23 words
The dosage form for delivering the therapeutic agent according to claim 1, wherein the injection-molded membrane comprises a polycaprolactone and a polyalkylene oxide.
Claim 5
Dependent Claim
24 words
The dosage form for delivering the therapeutic agent according to claim 1, wherein the injection-molded membrane comprises polycaprolactone, polyalkylene oxide and poly(ethylene glycol-co-propylene glycol).
Claim 6
Dependent Claim
22 words
The dosage form for delivering the therapeutic agent according to claim 1, wherein the injection-molded membrane comprises a polycaprolactone and polyethylene glycol.
Claim 7
Dependent Claim
114 words
A dosage form for delivering a therapeutic agent to an environment of use, wherein the dosage form comprises: (a) a first section; (b) a second section; (c) an internal lumen formed by the first section and the second section; (d) a therapeutic composition in the first section; (e) an osmotic composition in the second section; and wherein the dosage form comprises; (f) an injection-molded membrane, used for forming the first section and the second section, which membrane defines the first and second sections that form the internal lumen, the injection-molded membrane comprising a softening temperature of 40° C. to 180° C. and is permeable to the passage of fluid in the environment of use.
Claim 8
Dependent Claim
114 words
A dosage form for delivering a therapeutic agent to an environment of use, wherein the dosage form comprises: (a) a first section; (b) a second section; (c) an internal lumen formed by the first section and the second section; (d) a therapeutic composition in the first section; (e) an osmotic composition in the second section; and wherein the dosage form comprises; (f) an injection-molded membrane, used for forming the first section and the second section, which membrane defines the first and second sections that form the internal lumen, the injection-molded membrane comprising a softening temperature of 40° C. to 180° C. and is permeable to the passage of fluid in the environment of use.
Claim 9
Dependent Claim
83 words
A dosage form for delivering a therapeutic agent to an environment of use, wherein the dosage form comprises: (a) a first section; (b) a second section; (c) an internal lumen formed by the first section and the second section; (d) a therapeutic composition in the first section; (e) an osmotic composition in the second section comprises; (f) an injection-molded thermoplastic membrane forming the first section and the second section, the injection-molded membrane comprising a polycaprolactone that is permeable to the passage of fluid.
Claim 10
Dependent Claim
83 words
A dosage form for delivering a therapeutic agent to an environment of use, wherein the dosage form comprises: (a) a first section; (b) a second section; (c) an internal lumen formed by the first section and the second section; (d) a therapeutic composition in the first section; (e) an osmotic composition in the second section comprises; (f) an injection-molded thermoplastic membrane forming the first section and the second section, the injection-molded membrane comprising a polycaprolactone that is permeable to the passage of fluid.
Claim 11
Dependent Claim
36 words
The dosage form for delivering the therapeutic agent according to claim 7, wherein the injection-molded membrane comprises a polycaprolactone copolymer selected from the group consisting of polycaprolactone dilactide copolymer, polycaprolactone diglycolide, polycaprolactone valerolactone, and polycaprolactone decalactone.
Claim 12
Dependent Claim
84 words
A dosage form for delivering a therapeutic agent to an environment of use, wherein the dosage form comprises: (a) a first section; (b) a second section; (c) an internal lumen formed by the first section and the second section; (d) a therapeutic composition in the first section; (e) an osmotic composition in the second section; and wherein the dosage form comprises: (f) an injection-molded thermoplastic membrane forming the first section and the second section, the injection-molded membrane comprising a polycaprolactone and a polyalkylene oxide.
Claim 13
Dependent Claim
84 words
A dosage form for delivering a therapeutic agent to an environment of use, wherein the dosage form comprises: (a) a first section; (b) a second section; (c) an internal lumen formed by the first section and the second section; (d) a therapeutic composition in the first section; (e) an osmotic composition in the second section; and wherein the dosage form comprises: (f) an injection-molded thermoplastic membrane forming the first section and the second section, the injection-molded membrane comprising a polycaprolactone and a polyalkylene oxide.
Claim 14
Dependent Claim
86 words
A dosage form for delivering a therapeutic agent to an environment of use, wherein the dosage form comprises: (a) a first section; (b) a second section; (c) an internal lumen formed by the first section and the second section; (d) a therapeutic composition in the first section; (e) an osmotic composition in the second section and wherein the dosage form comprises: (f) an injection-molded thermoplastic membrane forming the first section and the second section, the injection-molded membrane comprising a polycaprolactone, polyalkylene oxide and poly(ethylene glycol-co-propylene glycol).
Claim 15
Dependent Claim
86 words
A dosage form for delivering a therapeutic agent to an environment of use, wherein the dosage form comprises: (a) a first section; (b) a second section; (c) an internal lumen formed by the first section and the second section; (d) a therapeutic composition in the first section; (e) an osmotic composition in the second section and wherein the dosage form comprises: (f) an injection-molded thermoplastic membrane forming the first section and the second section, the injection-molded membrane comprising a polycaprolactone, polyalkylene oxide and poly(ethylene glycol-co-propylene glycol).
Claim 16
Dependent Claim
79 words
A dosage form for delivering a therapeutic agent to an environment of use, wherein the dosage form comprises: (a) a first section; (b) a second section; (c) an internal lumen formed by the first section and the second section; (d) a therapeutic composition in the first section; (e) a composition comprising an osmopolymer in the second section comprises: (f) an injection-molded thermoplastic membrane forming the first section and the second section that comprises a polycaprolactone and a polyalkylene glycol.
Claim 17
Dependent Claim
79 words
A dosage form for delivering a therapeutic agent to an environment of use, wherein the dosage form comprises: (a) a first section; (b) a second section; (c) an internal lumen formed by the first section and the second section; (d) a therapeutic composition in the first section; (e) a composition comprising an osmopolymer in the second section comprises: (f) an injection-molded thermoplastic membrane forming the first section and the second section that comprises a polycaprolactone and a polyalkylene glycol.
Claim 18
Dependent Claim
109 words
A dosage form for delivering a therapeutic liquid formulation to an environment of use, wherein the dosage form comprises: (a) an internal compartment; (b) an exit in the dosage form that connects the internal compartment with the environment of use; (c) an osmotic composition in the internal compartment distant from the exit; and wherein the dosage form comprises: (d) a therapeutic liquid formulation in the internal compartment and adjacent to the exit; and, (e) an injection-molded thermoplastic membrane comprising a softening temperature of 40° C. and 180° C. that surrounds and forms the internal compartment, the injection-molded membrane permeable to the passage of fluid in the environment of use.
Claim 19
Dependent Claim
109 words
A dosage form for delivering a therapeutic liquid formulation to an environment of use, wherein the dosage form comprises: (a) an internal compartment; (b) an exit in the dosage form that connects the internal compartment with the environment of use; (c) an osmotic composition in the internal compartment distant from the exit; and wherein the dosage form comprises: (d) a therapeutic liquid formulation in the internal compartment and adjacent to the exit; and, (e) an injection-molded thermoplastic membrane comprising a softening temperature of 40° C. and 180° C. that surrounds and forms the internal compartment, the injection-molded membrane permeable to the passage of fluid in the environment of use.
Claim 20
Dependent Claim
28 words
A composition comprising 10% to 90% caprolactone-lactide copolymer and 10% to 80% of polyalkylene oxide with the composition equal to 100% and used for injection-molding a polymer membrane.
Claim 21
Dependent Claim
28 words
A composition comprising 10% to 90% caprolactone-lactide copolymer and 10% to 80% of polyalkylene oxide with the composition equal to 100% and used for injection-molding a polymer membrane.
Claim 22
Dependent Claim
27 words
A composition comprising 10% to 90% caprolactone-glycolide copolymer and 10% to 90% polyethylene oxide with the composition equal to 100% and used for injection-molding a polymer membrane.
Claim 23
Dependent Claim
27 words
A composition comprising 10% to 90% caprolactone-glycolide copolymer and 10% to 90% polyethylene oxide with the composition equal to 100% and used for injection-molding a polymer membrane.
Claim 24
Dependent Claim
39 words
A composition comprising 10% to 90% caprolactone-lactide copolymer, 10% to 50% polyethylene oxide and 10% to 50% poly(ethylene glycol-co-propylene glycol) with the composition equal to 100% and used for injection-molding a polymer membrane for manufacturing on oral dosage form.
Claim 25
Dependent Claim
39 words
A composition comprising 10% to 90% caprolactone-lactide copolymer, 10% to 50% polyethylene oxide and 10% to 50% poly(ethylene glycol-co-propylene glycol) with the composition equal to 100% and used for injection-molding a polymer membrane for manufacturing on oral dosage form.
Claim 26
Dependent Claim
34 words
A composition comprising 20% to 90% polycaprolactone and 10% to 80% ethylene-vinylacetate copolymer with the composition equal to 100% and the composition used for injection-molding a polymer membrane for manufacturing a therapeutic dosage form.
Claim 27
Dependent Claim
34 words
A composition comprising 20% to 90% polycaprolactone and 10% to 80% ethylene-vinylacetate copolymer with the composition equal to 100% and the composition used for injection-molding a polymer membrane for manufacturing a therapeutic dosage form.
Claim 28
Dependent Claim
83 words
A process for manufacturing a dosage form, wherein the process comprises: (a) injection molding a membrane into a shape that surrounds an internal space, which space comprises an opened end and a closed end; (b) placing in the space at the closed end a composition comprising fluid imbibing properties; (c) placing in the space at the opened end a composition comprising a drug; and (d) closing the opened end while maintaining an exit in the end for releasing drug from the dosage form.
Claim 29
Dependent Claim
83 words
A process for manufacturing a dosage form, wherein the process comprises: (a) injection molding a membrane into a shape that surrounds an internal space, which space comprises an opened end and a closed end; (b) placing in the space at the closed end a composition comprising fluid imbibing properties; (c) placing in the space at the opened end a composition comprising a drug; and (d) closing the opened end while maintaining an exit in the end for releasing drug from the dosage form.
Claim 30
Dependent Claim
99 words
A process for providing a dosage form, wherein the process comprises: (a) injection molding a composition comprising a polymer to provide a membrane which membrane surrounds an internal space with an opened end and a closed end; (b) depositing in the space at the closed end a composition that expands in the presence of aqueous fluids; (c) placing a composition comprising a drug in the space at the opened end; (d) crimping the membrane at the opened end to close the dosage form; and (e) maintaining an exit in the crimped end for delivering drug from the dosage form.
Claim 31
Dependent Claim
99 words
A process for providing a dosage form, wherein the process comprises: (a) injection molding a composition comprising a polymer to provide a membrane which membrane surrounds an internal space with an opened end and a closed end; (b) depositing in the space at the closed end a composition that expands in the presence of aqueous fluids; (c) placing a composition comprising a drug in the space at the opened end; (d) crimping the membrane at the opened end to close the dosage form; and (e) maintaining an exit in the crimped end for delivering drug from the dosage form.
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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) | 2001-11-02 | 2002-05-04 | 2002-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-11-02 | 2006-05-04 | 2006-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-11-02 | 2010-05-04 | 2010-11-03 | $7700.00 | Window Closed / Lapsed |