[특허]Contraceptive sheath with integrated bead construction

Contraceptive sheath with integrated bead construction 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61F-006/06 A61F-006/02 A61F-006/04 A61F-005/44 A61B-019/00
출원번호	US-0752350 (2010-04-01)
등록번호	US-8100128 (2012-01-24)
발명자 / 주소	Pope, Michael
출원인 / 주소	The Female Health Company (UK) Plc
대리인 / 주소	McDonnell Boehnen Hulbert & Berghoff LLP
인용정보	피인용 횟수 : 0 인용 특허 : 29

초록 ▼

A female condom and an improved method for manufacturing a female condom is disclosed. The invention provides a device that is effective in both acting as a contraceptive and inhibiting the transmission of disease during coitus. The invention employs synthetic latex in an efficient and cost effect m

대표청구항 ▼

1. A method for manufacturing a female condom comprising: dipping a former into a container of synthetic nitrile latex such that the synthetic nitrile latex forms a coating on the former, said coating defining a tubular wall with an open end and a closed end;drying the coating on the former;partially curing the coating on the former;after the partial curing, rolling the open end of the tubular wall upon itself to form an integral bead wherein the integral bead is of a diameter greater than that of the tubular wall; andcomplete curing the coating after the integral bead is formed. 2. The method of claim 1 further comprising the step of inserting a retaining mechanism into the closed end of the tubular wall. 3. The method of claim 2 wherein the retaining mechanism comprises an elastic ring like member. 4. The method of claim 3 wherein the ring like member is made of polyurethane or similar elastomeric material. 5. The method of claim 3 wherein the ring like member is only a portion of a circle. 6. The method of claim 1 further comprising the steps of coating the former with a coagulant before dipping it into the synthetic nitrile latex and drying the former once coated with the coagulant. 7. The method of claim 6 wherein the coagulant is calcium nitrate. 8. The method of claim 1 wherein the integral bead has a cross section diameter of greater than 3 mm. 9. The method of claim 1 wherein the integral bead consists of at least 130 mm of the tubular wall. 10. The method of claim 1 wherein adhesive material is applied to the outer portion tubular wall such that the bead is rolled over the adhesive and the adhesive material inhibits the bead from unrolling. 11. The method of claim 1 wherein the cure step is done at least 95° C. for at least about 15 minutes. 12. The method of claim 1 further comprising the steps of: leaching the tubular wall after the drying step and before the partial cure and drying the tubular wall after the leaching step. 13. The method of claim 6 wherein the former is preheated to at least about 70° C before coating it with the coagulant. 14. A method for manufacturing a female condom comprising: dipping a former into a container of curable polymer material such that the curable polymer material forms a coating on the former, said coating defining a tubular wall with an open end and a closed end;drying the coating on the former;partially curing the coating on the former;after the partial curing, rolling the open end of the tubular wall upon itself to form an integral bead wherein the integral bead is of a diameter greater than that of the tubular wall; andcomplete curing the coating after the integral bead is formed. 15. The method of claim 14 further comprising the step of inserting a retaining mechanism into the closed end of the tubular wall. 16. The method of claim 15 wherein the retaining mechanism comprises an elastic ring like member. 17. The method of claim 16 wherein the ring like member is made of polyurethane or similar elastomeric material. 18. The method of claim 16 wherein the ring like member is only a portion of a circle. 19. The method of claim 14 further comprising the steps of coating the former with a coagulant before dipping it into the curable polymer material and drying the former once coated with the coagulant. 20. The method of claim 19 wherein the coagulant is calcium nitrate. 21. The method of claim 14 wherein the integral bead has a cross section diameter of greater than 3 mm. 22. The method of claim 14 wherein the integral bead consists of at least 130 mm of the tubular wall. 23. The method of claim 14 wherein adhesive material is applied to the outer portion tubular wall such that the bead is rolled over the adhesive and the adhesive material inhibits the bead from unrolling. 24. The method of claim 14 further comprising the steps of: leaching the tubular wall after the drying step and before the partial cure and drying the tubular wall after the leaching step. 25. The method of claim 19 wherein the former is preheated to at least about 70°C before coating it with the coagulant. 26. A female condom made by a method comprising: dipping a former into a container of synthetic nitrile latex such that the synthetic nitrile latex forms a coating on the former, said coating defining a tubular wall with an open end and a closed end;drying the coating on the former;partially curing the coating on the former;after the partial curing, rolling the open end of the tubular wall upon itself to form an integral bead wherein the integral bead is of a diameter greater than that of the tubular wall; andcomplete curing the coating after the integral bead is formed.

이 특허에 인용된 특허 (29)

Richardson Margaret P. (Carmarthen GBX) Richardson Philip (Carmarthen GBX), Barrier device.
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Richardson Margaret P. (The Bungalow ; Pibwrlwyd Lane Carmarthen) Richardson Philip (The Bungalow ; Pibwrlwyd Lane Carmarthen GBX), Barrier device.
상세보기
Freimark Max G. (90870 Ferndale St. Philadelphia PA 19115), Birth control device.
상세보기
Gray Ian M. B. (Cape Town ZAX), Condom.
상세보기
Richardson Margaret P. (The Bungalow ; Pibwrlwyd Lane Carmarthen GBX) Richardson Philip (The Bungalow ; Pibwrlwyd Lane Carmarthen GBX), Contraceptive and anti-infective barrier device.
상세보기
Strickman Melvyn B. (R.D. 1 ; Lawrence Rd. Bridgeton NJ 08302) Fournier Erick-Pierre (30 Park Ave. New York NY 10016), Disposable contraceptive cervical barrier.
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Shecterle Linda M. (Plymouth MN) St. Cyr John A. (Maple Grove MN), Double layer prophylactic incorporating pharmacological fluid and spiral barrier layer.
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Tillotson Neil E. (Dixville Notch NH), Elastomeric condom.
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Artsi Elie (Yasmin Street 14 Carmei Yosef ILX) Daniel Jacques (Rechovot ILX), Female condom.
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Chantal Couvreur BE, Female condom.
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Torger Karin S. (15 Hermann #606 San Francisco CA 94102), Garment for releasably securing condoms.
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Kruczynski Adam (Cambridge GBX) Miller Anne (Cambridge GBX), Method and apparatus for welding bags to rings.
상세보기
Kruczynski Adam (Cambridge GBX) Miller Anne (Cambridge GBX), Method for welding bags to rings.
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Shlenker Robin R. T. (2165 E. Alameda Denver CO 80209) Solomons Clive C. (Denver CO) Plunkett Jerry D. (Denver CO) Smith Clayton S. (Golden CO), Method of forming a membrane, especially a latex membrane, having a biocide barrier.
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Wang, Shiping; Yeh, Yun-Siung Tony; Wenig, Randell; Weicheong, Wong, Polyisoprene articles and process for making the same.
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Fuchs Ingbert E. (Desoto TX), Production of multilayer productive coverings on conventional dip molding lines.
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Reddy A. V. K. (1042 Jade Dr. Hanna WY 82327), Prophylactic device.
상세보기
Reddy Alla V. K. (1042 Jade Dr. Hanna WY 82327), Prophylactic device.
상세보기
Reddy Alla V. K. (1042 Jade Dr. Hanna WY 82327), Prophylactic device.
상세보기
Reddy Krishna (1042 Jade Dr. Hanna WY 82327), Prophylactic device.
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Lipinski Timothy M., Soft nitrile rubber formulation.
상세보기
Hessel Jasse (Oakley Hill DKX), Tubular protective device for protection against transfer of infectious matter during sexual intercourse.
상세보기
Hessel Lasse (Goring-On-Thames GB2), Tubular protective device for protection against transfer of infectious matter during sexual intercourse.
상세보기
Hessel Lasse (Oakley Hill ; Bridle Way Goring-On-Thames ; Reading RGRG DHS ; Hotel Cieri GB2), Tubular protective device for protection against transfer of infectious matter during sexual intercourse.
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Hessel Lasse (Reading GB2), Tubular protective device for protection against transfer of infectious matter during sexual intercourse.
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Hessel Lasse (Reading RGRG OHS GB2), Tubular protective device for protection against transfer of infectious matter during sexual intercourse.
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Anderson Ray C. (7605 S. Quebec Tulsa OK 74136), Unisex condom.
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Brodie Roly R, Unisex short with reversible condom.
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McGlothlin, Mark W.; Schmid, Eric V., Vulcanization of dip-molded rubber articles with molten media baths.
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