Patent US4601714A successfully refreshed from Google Patents.
US4601714A
Expired / Lapsed
US
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Vaginal device
Assignee: Individual
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Filing: 1984-03-07
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Granted: 1986-07-22
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Expires: 2004-03-07
Abstract
Abstract A vaginal device adapted for use as a disposable female contraceptive or as a disposable article for controllably dispensing drugs is provided comprising an outermost layer of resilient, compressible open-celled polymeric foam. Affixed to the outermost foam layer is a non-porous film layer made of a liquid proof, soft elastomeric material. Affixed to the non-porous film layer is another layer of open-celled polymeric foam. The intermediate film layer provides a barrier between the two foam layers. The outermost and innermost foam layers are formed from foams differing basically in density and/or number of pores per inch, with the more dense or smaller pored foam constituting the outermost layer, the outermost layer being adapted to lie against the cervix of the uterus and block the upper vaginal vault.
Inventors
- 👤 Michael S. Burnhill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:15
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/0034; A61K9/0036; A61F; A61F6/00; A61F6/06; A61F6/08
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
108 words
A vaginal device comprising an outermost layer of resilient compressible, open-celled, polymeric foam, a non-porous film layer formed of a liquidproof, soft elastomeric material affixed to said outermost foam layer, and a second layer of open-celled polymeric foam affixed to the opposite surface of said non-porous film layer, said outermost and innermost foam layers differing in density and/or numbers of pores per inch with the more dense or smaller pored foam layer constituting the outermost layer, said outermost layer being adapted to lie against the cervix of the uterus, said device having a diameter of about 2-2 3/5 inches and thickness of up to about 3 3/5 inches.
Claim 2
Dependent Claim
108 words
A vaginal device comprising an outermost layer of resilient compressible, open-celled, polymeric foam, a non-porous film layer formed of a liquidproof, soft elastomeric material affixed to said outermost foam layer, and a second layer of open-celled polymeric foam affixed to the opposite surface of said non-porous film layer, said outermost and innermost foam layers differing in density and/or numbers of pores per inch with the more dense or smaller pored foam layer constituting the outermost layer, said outermost layer being adapted to lie against the cervix of the uterus, said device having a diameter of about 2-2 3/5 inches and thickness of up to about 3 3/5 inches.
Claim 3
Dependent Claim
17 words
A vaginal device according to claim 1, wherein said device is a three-dimensional structure cylindrical in shape.
Claim 4
Dependent Claim
18 words
A vaginal device according to claim 1 wherein said device is a three dimensional structure globular in shape.
Claim 5
Dependent Claim
21 words
A vaginal device according to claim 1 wherein said device is a three-dimensional structure having the shape of a truncated cone.
Claim 6
Dependent Claim
28 words
A vaginal device according to claim 1 wherein said outermost and innermost layers have a thickness of from about 1/8 inch up to about 1 3/4 inch each.
Claim 7
Dependent Claim
25 words
A vaginal device according to claim 5 wherein said outermost layer is about 5/8 inch thick and said innermost layer is about 1/8 inch thick.
Claim 8
Dependent Claim
21 words
A vaginal device according to claim 1 wherein said barrier film has a thickness of about 0.5 to about 3 mils.
Claim 9
Dependent Claim
20 words
A vaginal device according to claim 7 wherein said barrier film has a thickness of about 1 to 2 mils.
Claim 10
Dependent Claim
30 words
A vaginal device according to claim 1 wherein said foam layers are fabricated of a member selected from the group consisting of polyurethane, polyester, polyether, polyethylene foams and combinations thereof.
Claim 11
Dependent Claim
14 words
A vaginal device according to claim 9 wherein said foam is a polyurethane foam.
Claim 12
Dependent Claim
19 words
A vaginal device according to claim 10 wherein said foam is an open-cell foam having 80-200 pores per inch.
Claim 13
Dependent Claim
25 words
A vaginal device according to claim 1 wherein said non-porous film layer is a barrier film made of natural rubber, synthetic rubber, or latex material.
Claim 14
Dependent Claim
22 words
A vaginal device according to claim 1 wherein said non-porous film layer is a glue layer made of a pharmaceutically acceptable adhesive.
Claim 15
Dependent Claim
18 words
A vaginal device according to claim 1 wherein said non-porous film layer is made of a barrier laminate.
Claim 16
Dependent Claim
18 words
A vaginal device according to claim 1 provided with means for facilitating removal and/or withdrawal of the device.
Claim 17
Dependent Claim
13 words
A vaginal device according to claim 1 adapted for use as a contraceptive.
Claim 18
Dependent Claim
20 words
A vaginal device according to claim 16 wherein at least one of said foam layers is impregnated with a spermicide.
Claim 19
Dependent Claim
12 words
A vaginal device according to claim 16 wherein said spermicide is nonoxynol-9.
Claim 20
Dependent Claim
20 words
A vaginal device according to claim 17 wherein said spermicide is present in an amount of one to ten percent.
Claim 21
Dependent Claim
35 words
A vaginal device according to claim 16 wherein at least one of said layers is additionally impregnated with at least one member of the group consisting of preservatives, ph reducers, antibiotics, antifungals, antibacterials and antimicrobials.
Claim 22
Dependent Claim
14 words
A vaginal device according to claim 1 adopted for use as a medicament dispenser.
Claim 23
Dependent Claim
42 words
A vaginal device according to claim 21 wherein at least one of said foam layers contains at least one member selected from the group consisting of antibiotics, antifungals, antibacterials, antimicrobials, hormones, enzymes, psychotropic drugs, cardiac and blood pressure regulators, analgesics and antipyretics.
Claim 24
Dependent Claim
23 words
A vaginal device according to claim 22 wherein said group member is modified for controlled or time-release of said group member during use.
Claim 25
Dependent Claim
20 words
A vaginal device according to claim 1 packed and sealed in an envelope of barrier film material under sterile conditions.
Claim 26
Dependent Claim
43 words
A method for providing contraception which comprises inserting a vaginal device according to claim 1 into the vagina of the female subject prior to intercourse so that the outermost layer lies against the cervix of the uterus and blocks the upper vaginal vault.
Claim 27
Dependent Claim
39 words
A method for dispensing drugs or other medicaments which comprises inserting a vaginal device according to claim 22 into the vagina of the female subject requiring treatment with the drug incorporated into at least one of said foam layers.
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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) | 1989-07-21 | 1990-01-20 | 1990-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-21 | 1994-01-20 | 1994-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-21 | 1998-01-20 | 1998-07-22 | $7700.00 | Window Closed / Lapsed |