A voice prosthesis (10) that is formed of a soft, elastomeric body (14) containing a spring loaded ball valve, preferably a non-impervious, smooth ball (20) such as a ruby ball biased by a flat helical spring (18) against a seat (32) mounted in a rigid cartridge (12).
申请公布号
WO03058077(A3)
申请公布日期
2003.10.02
申请号
WO2002US41275
申请日期
2002.12.20
申请人
HELIX MEDICAL, INC.;SEDER, EDMUND, V.;SOLIS, MITCHELL, A.
