A - Human Necessities – 61 – L
Patent
A - Human Necessities
61
L
A61L 31/04 (2006.01) A61L 15/22 (2006.01) A61L 15/28 (2006.01) A61L 27/14 (2006.01) A61L 27/20 (2006.01) A61L 2/02 (2006.01)
Patent
CA 2390556
(1) A tissue-covering medical material which comprises a soluble cellulose derivative having been made hardly soluble in water, which is used with a purpose of being embedded in the body or applied to the tissue, and (2) a method for producing the tissue-covering medical material as defined in (1), which comprises, as a method to make a soluble cellulose derivative hardly soluble in water, freezing and thawing an acidic solution of the soluble cellulose derivative, are provided.
L'invention concerne (1) un matériau à usage médical applicable sur des tissus et constitué d'un dérivé de celullose soluble rendu difficilement soluble dans l'eau à introduire dans le corps ou à appliquer sur des tissus, et (2) une méthode de préparation d'un matériau à usage médical, tel que décrit ci-dessus, applicable sur des tissus. Cette méthode se caractérise en ce qu'un dérivé de cellulose soluble est rendu difficilement soluble dans l'eau par congélation et décongélation d'une solution acide.
Himeda Yasukazu
Umeda Toshihiko
Denki Kagaku Kogyo Kabushiki Kaisha
Smart & Biggar
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