A voice prosthesis that is formed of a soft, elastomeric body containing a spring loaded ball valve, preferably a non−impervious, smooth ball such as a ruby ball biased by a flat helical spring against a seat mounted in a rigid cartridge. An insertion device includes a handle with expandable tip which enters and locks within the cartridge.
申请公布号
WO03058077(A2)
申请公布日期
2003.07.17
申请号
WO2002US41275
申请日期
2002.12.20
申请人
HELIX MEDICAL, INC.;SEDER, EDMUND, V.;SOLIS, MITCHELL, A.