B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 41/14 (2006.01) A61F 2/12 (2006.01) B29C 41/04 (2006.01) B29C 41/06 (2006.01) B29C 41/08 (2006.01)
Patent
CA 2744062
Systems and methods for molding shells for fluid-filled prosthetic implants, including spinning and rotating dip- or spray-mandrels during a devolatilization step to ensure an even covering. The mandrels may be spun during the dipping or spray-ing step, and/or afterward while a solvent evaporates until a gum state is formed. The techniques are particularly useful for form-ing hollow shells from silicone dispersions for soft implants, such as breast implants.
L'invention porte sur des systèmes et des procédés de moulage de coquilles pour implants prothétiques remplis de fluide, comprenant la centrifugation et la rotation de mandrins d'immersion ou de pulvérisation durant une étape de dévolatilisation destinée à garantir un recouvrement régulier. Les mandrins peuvent être centrifugés durant et/ou après l'étape d'immersion ou de pulvérisation tandis qu'un solvant s'évapore jusqu'à ce qu'un état de gomme soit formé. Les techniques sont particulièrement utiles pour constituer des coquilles creuses à partir de dispersions de silicone pour des implants mous, tels que des implants mammaires.
Dempsey Kevin J.
Judge Feargal D.
Allergan Inc.
Gowling Lafleur Henderson Llp
LandOfFree
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