B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 41/14 (2006.01) A61M 16/06 (2006.01) B29C 33/48 (2006.01) B29C 41/22 (2006.01) B29C 41/40 (2006.01) B29C 41/46 (2006.01)
Patent
CA 2433294
A method of forming a cannula by forming a cannula mandrel assembly (3) having a nare mandrel (5, 7), a main body mandrel (1) and mouthpiece mandrel (9); heating the cannula mandrel assembly (3), applying a polymeric material to the cannula mandrel assembly (3) to provide a desired material thickness on the mandrel assembly (3) to form the cannula, curing the polymeric material of the formed cannula and extracting the mandrel assembly from the cannula (1') by disassembly and removal of the mandrel assembly parts.
La présente invention concerne un procédé permettant de produire une canule en formant un ensemble mandrin de canule (3) comportant des mandrins de narine (5,7), un mandrin de corps principal (1) et un mandrin d'embout buccal (9), procédé selon lequel on chauffe l'ensemble mandrin de canule (3), on applique une matière polymérique sur l'ensemble mandrin de canule (3) afin d'obtenir une épaisseur de matière désirée sur l'ensemble mandrin (3) pour former la canule, on fait durcir la matière polymérique de la canule formée et on extrait l'ensemble mandrin de la canule (1') en démontant et en enlevant les pièces de l'ensemble mandrin.
Salter Labs
Woodruff Nathan V.
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