Tracheostoma valve

Details Tracheostoma valve Tracheostoma valve

2006-06-13

2006-06-13

Patel, Mital (Department: 3743)

Surgery

Respiratory method or device

Respiratory gas supply means enters mouth or tracheotomy...

C128S207140, C128S200260

Reexamination Certificate

active

07059327

ABSTRACT:
A tracheostoma valve is described for use within a tracheostoma to facilitate speech by use of a vocal prosthesis, which consists of a valve housing defining a valve cavity having an airflow passage therethrough between at least one rearward and at least one forward aperture, and a valve member. The valve member includes a fixed rear portion connected to a forward portion by a collapsible sleeve such that the forward portion is deployable from a collapsed configuration under vegetative breathing pressure wherein the air flow passage is open to an expanded configuration under speech pressure whereat the forward portion acts to restrict flow through the air flow passage.

REFERENCES:
patent: 4040428 (1977-08-01), Clifford
patent: 4582058 (1986-04-01), Depel et al.
patent: 4627433 (1986-12-01), Lieberman
patent: 4809693 (1989-03-01), Rangoni et al.
patent: 5059208 (1991-10-01), Coe et al.
patent: 5727594 (1998-03-01), Choksi
patent: 5738095 (1998-04-01), Persson
patent: 6193751 (2001-02-01), Singer
patent: 6921417 (2005-07-01), Persson
patent: WO 95/17138 (1995-06-01), None

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