Surgical tubular device having a slippery surface

Details Surgical tubular device having a slippery surface Surgical tubular device having a slippery surface

A - Human Necessities

61

M

167/335, 18/49

A61M 25/00 (2006.01) A61L 29/04 (2006.01)

Patent

CA 1040500

ABSTRACT OF THE DISCLOSURE Surgical tubular device intended for being temporarily introduced into the cavities of a living body, such as a cathe- ter, an intubation or sounding tube, a cystoscope or similar. That device consist entirely or partially intended for being temporarily introduced into the cavities of a living body, consisting entirely or partially in a hydrophilic copolymer of acrylonitrile with hydrophilic comonomers selected from the group consisting of acrylamide, acrylic acid, methacrylamide, methacrylic acid, ethylene sulphonic cid and their salts, said copolymer being swelled with an aqueous liquid, the surface of the part which is introduced into the body containing neutra- lized anionic groups making it highly slippery in contact with water, and the part expected to be exposed to the atmosphere during the application to the body being protected against drying by a layer of an elastic polymer or copolymer impermea- ble for water and water vapors.

222559

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