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US5830502A Expired / Lapsed US ⏱️ 0.0 years remaining

Injection-molded dosage form

Assignee: Encinal Pharmaceutical Investments LLC
•
Filing: 1996-11-05
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Granted: 1998-11-03
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Expires: 2016-11-05
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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.

References Cited (Backward Citations)

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US3845770A Cited
US3916899A Cited
US4327725A Cited
US4855141A Cited
US5213809A Cited
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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

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