Fluid-expansible contraceptive tampon and applicator
Patent 4553965 Issued on November 19, 1985. Estimated Expiration Date: 
July 6, 2004. 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.
July 6, 2004. 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 ReferencesInventorsApplicationNo. 06/626607 filed on 07/06/1984US Classes:604/286, Including foraminous material (e.g., sponge, etc.) or fibrous element other than withdrawal cord604/515, To or from the female reproductory tract604/904TAMPONSExaminersPrimary: Rosenbaum, C. FredAssistant: Vinyard, S. Attorney, Agent or FirmInternational ClassesA61F 13/20 (20060101)A61F 6/00 (20060101) A61F 6/12 (20060101) AbstractA method and apparatus for contraception wherein an applicator houses a fluid-expansible, hydrophilic, tampon material in its unactivated, compressed state separate from a reservoir of spermicide or medicament. The applicator preferably includes a manually frangible portion of the spermicide reservoir or a fluid communication passage to bring the spermicide into contact with the fluid-expansible tampon material upon command prior to use. After activating by moistening, the spermicide-impregnated, expanded tampon can be readily inserted into a vagina by use of the applicator. Preferably, the tampon is made from a body of purposefully-compressed, memory-retentive, hydrophilic material having a resilience and a high coefficient of expansion when moistened to act as a barrier to the os uteri, to fill the vaginal fornices and absorb ejaculate. Various shapes of the tampon are disclosed, as are methods of making and using the invention.Other References
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