Unit package containing ready-to-use vaginal contraceptive
Patent 4692143 Issued on September 8, 1987. Estimated Expiration Date: 
May 19, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
May 19, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3490545 3639566 Menstrual device for an animal Intravaginal contraception method Vaginal tampon Vaginal device Patent #: 4393871 InventorApplicationNo. 06/864497 filed on 05/19/1986US Classes:604/515, To or from the female reproductory tract424/430, Vaginal, urethral, uterine604/19, MEANS FOR INTRODUCING OR REMOVING MATERIAL FROM BODY FOR THERAPEUTIC PURPOSES (E.G., MEDICATING, IRRIGATING, ASPIRATING, ETC.)604/286Including foraminous material (e.g., sponge, etc.) or fibrous element other than withdrawal cordExaminersPrimary: Rosenbaum, C. FredAssistant: Vinyard, Sherri E. Attorney, Agent or FirmInternational ClassesA61K 9/00 (20060101)A61F 6/08 (20060101) A61F 6/00 (20060101) AbstractA premoistened ready-for-use vaginal contraceptive device and method of use thereof are described wherein a porous polyurethane sponge is provided which is impregnated with a bacteria-free sterile spermicide, pectin and pH control and swelling agent aqueous solution enclosed within and readily removable from a sealed packet and wherein the premoistened polyurethane sponge with its absorbed components when removed from the packet is immediately inserted in position and is ready for contraceptive use. After one or more coital episodes the sponge is removed, its effective life being up to about 24 hours. The spermicide is present in a maximum of 8% and the pectin constitutes about 5%, both percentages being based on the weight of the solution. | |
