Patent ID: 7520897
Filing Date: 2009-04-21
Classification: A61F,A61L

Abstract:
1. A voice prosthesis device comprising: a first body having a first central tubular channel comprising a medical grade elastomer, wherein at least a portion of an external surface of said first body is in direct contact with tissue when disposed in vivo; and a second body disposed within said first central tubular channel of said first body, wherein said second body defines a second tubular channel and comprises a rear flange that forms a rigid valve seat, a valve flap, and a flexible hinge, wherein said valve flap is connected to said flexible hinge and is operable to seal and open said second tubular channel; wherein said valve flap and said hinge do not contact tissue when disposed in vivo and are formed of a medical grade silicone elastomer material having an antimicrobial agent dispersed therein, and wherein said antimicrobial agent is present at a concentration effective to deter microbial growth so that the flap reliably seals against said rigid valve seat.