With Lubricating Means To Facilitate Insertion Patents (Class 604/363)
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Patent number: 5817077Abstract: Vaginal epithelium drying is substantially reduced or prevented by reducing the capillary suction pressure of a tampon in early use. This is accomplished by modifying the capillary suction pressure of the surface of the tampon by using hydrophobic components in the tampon, such as hydrophobic fibers and/or hydrophobic cover material. Other means of obtaining a lower capillary suction pressure include increasing the denier of the fibers in the tampon's absorbent core and/or decreasing the density of the tampon.Type: GrantFiled: March 11, 1997Date of Patent: October 6, 1998Assignee: McNeil-PPC, Inc.Inventors: Theodore A. Foley, Linda M. Pierson, Harry L. Pine, Ronald P. Schreck
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Patent number: 5817047Abstract: Absorptive pads including catamenial tampons are provided which are characterized by O.sub.2 levels sufficiently reduced so as to reduce the introduction of air into the vaginal canal with a resulting reduction in the probability of production of toxic shock syndrome exotoxin during internal use of the pads.Type: GrantFiled: March 17, 1997Date of Patent: October 6, 1998Assignee: The Procter & Gamble CompanyInventors: Thomas Ward Osborn, III, Edward John Milbrada
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Patent number: 5762644Abstract: Absorbent devices, and more particularly toilet-disposable absorbent devices that are worn interlabially by female wearers for catamenial purposes, incontinence protection, or both, are disclosed. The absorbent interlabial device of the present invention comprises a central absorbent portion and preferably a pair of flexible extensions joined to the central absorbent portion. The main absorbent portion comprises an upper portion, and a lower portion opposed to the upper portion. In use, the upper portion is positioned furthest inward into the space between the wearer's labia majora. The pair of flexible extensions extends downwardly and laterally outward from the upper portion of the main absorbent portion, and preferably is capable of maintaining contact with the inside surfaces of the wearer's labia majora when the wearer's body goes through a range of motions, including squatting.Type: GrantFiled: June 26, 1997Date of Patent: June 9, 1998Assignee: The Procter & Gamble CompanyInventors: Thomas Ward Osborn, III, Bradley Neil Johnson
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Patent number: 5688257Abstract: A tampon (8) includes an absorbent body (2) which is embraced by a fluid-permeable casing (4) of thermoplastic non-woven material. A withdrawal string (7) attached to the absorbent body (2) exits centrally from one end surface (10) of the tampon. The casing material (4) is heat-sealed at least at the central part of the end surface (10), by pressing a mandrel (9) against the end (10) of the tampon, so as to coalesce the thermoplastic material to an essentially fluid-impervious film (11). This improves the protection of the tampon against leakage and also increases the stability of the tampon.Type: GrantFiled: August 16, 1995Date of Patent: November 18, 1997Assignee: Molnlycke ABInventor: Clas Olsen
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Patent number: 5643588Abstract: A diaper containing a liquid pervious topsheet coated with a lotion composition is disclosed. The lotion composition reduces the adherence of BM to the skin of the wearer, thereby improving the ease of BM clean up. The lotion composition comprises a plastic or fluid emollient such as mineral oil or petrolatum, an immobilizing agent such as a fatty alcohol or paraffin wax to immobilize the emollient on the surface of the diaper topsheet, and optionally a hydrophilic surfactant to improve wettability of the coated topsheet. Because the emollient is substantially immobilized on the surface of the topsheet, less lotion is required to impart the desired therapeutic or protective lotion coating benefits.Type: GrantFiled: November 28, 1994Date of Patent: July 1, 1997Assignee: The Procter & Gamble CompanyInventors: Donald Carroll Roe, Frank Heinrich Bakes, Alrick Vincent Warner
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Patent number: 5635191Abstract: A diaper containing a liquid pervious topsheet coated with a lotion composition is disclosed. The lotion composition reduces the adherence of BM to the skin of the wearer, thereby improving the ease of BM clean up. The lotion composition comprises a plastic or fluid polysiloxane emollient such as phenyl-functional polymethylsiloxanes, an immobilizing agent such as a fatty alcohol or paraffin wax to immobilize the emollient on the surface of the diaper topsheet, and optionally a hydrophilic surfactant to improve wettability of the coated topsheet. Because the polysiloxane emollient is substantially immobilized on the surface of the topsheet, less lotion is required to impart the desired therapeutic or protective lotion coating benefits.Type: GrantFiled: November 28, 1994Date of Patent: June 3, 1997Assignee: The Procter & Gamble CompanyInventors: Donald C. Roe, Larry N. Mackey
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Patent number: 5542914Abstract: An encapsulated catamenial tampon is disclosed which can easily and comfortably be inserted into a woman's vagina. The tampon includes an absorbent having a withdrawal string attached thereto. The absorbent is retained in a dissolvable capsule having a cylindrically-shaped base member and a semi-spherically shaped cap member. The base member houses at least a portion of the absorbent and contains a first end and a second end. The first end is completely open while the second end has an opening formed there in through which the withdrawal string passes. The cap member slightly overlaps the first end of the base member to enclose the absorbent. Both the base and cap members have a plurality of openings formed therethrough which decrease the surface area of the capsule to allow the capsule to dissolve quickly.Type: GrantFiled: December 27, 1994Date of Patent: August 6, 1996Assignee: Kimberly-Clark CorporationInventor: Thomas P. Van Iten
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Patent number: 5533990Abstract: A tampon is disclosed which exhibits low frictional drag during insertion into and withdrawal from a woman's vagina. The tampon includes an absorbent compressed into a generally cylindrical shape and a liquid-permeable cover which surrounds at least a portion of the absorbent. The cover is treated with an aqueous solution having a viscosity of at least 50 cps at a temperature of about 25.degree. C. The solution includes a lubricant and at least about 3 percent by weight of a polymer. The polymer serving to prevent the lubricant from migrating away from the cover such that the tampon retains a sufficient amount of lubricant to facilitate comfortable withdrawal from the vaginal cavity.Type: GrantFiled: September 23, 1994Date of Patent: July 9, 1996Assignee: Kimberly-Clark CorporationInventor: Richard S. Yeo
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Patent number: 5417224Abstract: An improved tampon is provided having one or more loops placed entirely through the tampon for ease in insertion and removal of an attached spherical member into and from a body cavity. Moreover, the improved tampon can be impregnated at select depths with specific spermicides, anti-infectives, lubricants, hormones, antioxidants, amino acids, etc., to allow release of inner-impregnated fluids from the member into the body cavity. Closely controlled impregnation and/or coating of the tampon is achieved by a method of manufacture employing one or more sonic baths containing necessary impregnating and/or coating fluids.Type: GrantFiled: May 19, 1993Date of Patent: May 23, 1995Assignee: Advanced Medical Instruments, Inc.Inventors: Edward J. Petrus, Maurice S. Conte
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Patent number: 5383891Abstract: A hemostatic tampon kit including an oval-shaped tampon adopted for easy insertion into the nasal cavity by a layman, composed of a compressed synthetic sponge adapted to expand upon contact with an aqueous fluid, the tampon includes a string attached thereto for anchoring to a nasal bandage placed over the nostrils of the user which includes an absorbent drip pad and an attachment element on the bandage for engaging and holding the tampon string. A sealable container of liquid vasoconstrictive medication for wetting and expanding the tampon and a container of anti-bacterial ointment for lubricating the tampon during insertion.Type: GrantFiled: August 31, 1993Date of Patent: January 24, 1995Inventor: Marshall D. Walker
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Patent number: 5374258Abstract: A tampon for hygienic use which comprises an absorbent core of general cylindrical shape having a liquid pervious cover layer is disclosed. The cover layer is a plastics material which comprises parallel ribs in one direction interconnected by a plurality of fibrillated strands in the transverse direction. The ribs of the cover layer lie in a direction which is in a direction parallel to the main axis of the tampon.Type: GrantFiled: June 15, 1990Date of Patent: December 20, 1994Assignee: Smith & Nephew plcInventors: Ronald Lloyd, Karen A. Stringer
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Patent number: 5201326Abstract: A rod-shaped medical tampon for releasing an active substance, including (a) a tampon core of compressed fibers selected from the group consisting of cellulose fibers, cotton fibers, and acetate fibers; (b) a tampon cover surrounding said tampon core and being firmly bonded to one another by a glue, the tampon cover comprising a hardened collagen foam or a hardened gelatin foam impregnated with a retardant including a dissolved active substance to be released; and (c) a retrieval string connected to at least one of said tampon core and said tampon cover.Type: GrantFiled: August 28, 1990Date of Patent: April 13, 1993Assignee: VP-SchickedanzInventors: Jorn Kubicki, Norbert Rink
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Patent number: 5073365Abstract: Articles for use in contact with animal tissue, such as surgical and first aid supplies, health care products and personal hygiene products, are dusted with microspheres for lubricating purposes or for the application of diffusible adjuvants. In the latter case, the microspheres are porous, with a continuous network of pores open to the exterior of the particles, permitting outward diffusion of the adjuvants at a controlled rate depending on pore size. The adjuvants include such substances as biologically active substances, deodorants, flavors, fragrances, and liquid lubricants.Type: GrantFiled: June 1, 1989Date of Patent: December 17, 1991Assignee: Advanced Polymer SystemsInventors: Martin Katz, Helen C. Leong, Chung-Heng Cheng