摘要:
Condoms, condom formers, and methods for forming condoms are disclosed. A condom includes an open end, a closed end, a tubular sheath extending from the open end to the closed end, a tip portion adapted to cover a glans of a penis, disposed adjacent to the closed end, and a plurality of raised features disposed on the tubular sheath, having a top surface area and a base surface area, wherein the total raised top surface area is greater than the total base surface area of the condom.
摘要:
The present invention is a female condom with an extended shield that can cover and seal the external genitalia to prevent sperm and disease transmissions during coitus. The construction of the present invention involves sealing of the double layered membranous films in an omega or similar shape to create a tubular and a shield portions, followed by applications of adhesive and releasing sheets onto the exterior of both shields before it is cut into the final product. The tubular portion will form the protective barrier for vagina (condom) while the shield portion, which adheres to the external genitalia, will prevent the seepage of body fluid. The tubular portion may be inverted to serve as a male condom. Double tubular portions are constructed for unconventional sexual activities. Transverse and longitudinal folds are created to enlarge the tubular portion. The female condom may be shaped, textured, coloured and flavoured according to the users' demand.
摘要:
A prophylactic device includes a base for receiving a portion of a body, a tip for containing body fluids, and a tubular body in between. The tubular body includes at least one area with a textured pattern, including lines running along the tubular body (e.g., lines running in at least three directions) that form shapes on the tubular body with portions of the lines forming edges of the shapes (e.g., circles, ellipses, polygons, etc.). The textured pattern forms a reinforcing mesh that wraps around the tubular body. A mold can be used for making the prophylactic device, where the mold includes different portions for receiving material(s), and is shaped to form the material(s) into the base, tip, and tubular body of the prophylactic device.
摘要:
A condom that includes a tubular shaft comprising a polymeric composition and having an open end and a closed end, a hollow interior chamber disposed between the open end and the closed end, and an open-cell foam tip portion disposed on at least one of an internal portion of the closed end and/or an exterior surface of the closed end, wherein the tubular shaft and the open end are adapted for receiving a penis of a wearer.
摘要:
Thin walled elastomeric articles are made by electrostatically depositing a coating of an elastomeric composition on a rigid shape former (24), consolidating the coating and then stripping the article (30) from the former. Gloves and condoms are among the articles which can be made in this way.
摘要:
A method of welding at least two layers of a thin thermoplastic polyurethane elastomer (10A,B) to form a weld seam (12) to produce polyurethane barrier products such as, but not limited to, gloves (20), condoms (30), inflatable catheter balloon cuffs (48A,B), ostomy pouches (50), organ bags (60), and instrument covers (70) through a process of pre-heating a sealing die platen, the at least two layers of the polyurethane (10A,B) softened while under pressure from the preheated die platen, followed by welding the at least two layers of polyurethane (10A,B) film by transmission of a radio-frequency energy to the film (10A,B) to produce a weld seam (12) and then allowing the weld seam (12) to cool, the resultant product having seam integrity.
摘要:
An apparatus for welding a reinforcing member to a bag-like device or contraceptive device is disclosed. The apparatus includes at least one hollow mandrel. The hollow mandrel has an outer surface with an annular groove for holding the reinforcing member. The apparatus has a means for applying a closed end of the bag-like device into the hollow mandrel and an open end of the bag-like device over the hollow mandrel at the outer surface with the annular groove for holding the reinforcing member. The apparatus also includes a welding device for welding the reinforcing member to the bag-like device. A method for welding the reinforcing member to a bag-like device is also disclosed.
摘要:
A process for drawing, with plug assist, thin walled, closed-ended, tubular articles of thermoplastic elastomer is disclosed as well as a thermoplastic elastomer and apparatus therefor. According to the process, a plug, extensible into the mold cavity, is employed concurrently with a varying air pressure differential across the faces of the preform to bias the flow of the drawn article axially along the length of the tubular mold and away from the mold walls. At a point where the article is drawn substantially the length of the tubular mold, the mold is evacuated and the article finally formed against the mold walls. Such articles are usefully employed as condoms or finger cots.
摘要:
A method and apparatus for producing an article, by covering at least a portion of a microwave heatable former with a liquid-containing material, applying microwave radiation to heat the former so as to leave a dry solid coating on the former, and effecting relative separation between the former and the dry solid coating so as to produce the article.
摘要:
A process of making a polyurethane condom which comprises providing an organic solvent solution of a polyurethane, a single dipping of a condom form or mold into the polyurethane solution, raising the form from solution and allowing the resultant deposited film to cure at elevated temperatures, thereby forming the condom.