Voice prosthesis device

Details Voice prosthesis device Voice prosthesis device

A - Human Necessities

61

F

A61F 2/20 (2006.01)

Patent

CA 2549612

A voice prosthesis device provides a passageway between a tracheal end of the device and an esophageal end of the device. A valve in the passageway includes a seat having a first hardness and a movable valve member having a second hardness harder than the first hardness. The movable valve member closes against the seat to close the valve.

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