Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Larynx – trachea – tracheobronchial prosthesis or combination...
Reexamination Certificate
2006-04-11
2006-04-11
McDermott, Corrine (Department: 3738)
Prosthesis (i.e., artificial body members), parts thereof, or ai
Larynx, trachea, tracheobronchial prosthesis or combination...
C623S014110, C623S023680
Reexamination Certificate
active
07025784
ABSTRACT:
An externally worn tracheal valve has a valve assembly supporting a flexible, resilient lightweight diaphragm centrally thereof. The diaphragm is folded towards the trachea so that air expelled from the trachea will tend to unfold the diaphragm to an extended position to close the valve. During normal breathing the diaphragm remains at least partially folded and the valve remains open. During voice exhalation, the diaphragm extends to close the valve. During high pressure coughing exhalation, the diaphragm may evert, opening the valve to release excessive pressure.
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Blom Eric D.
Singer Mark I.
Barnes & Thornburg LLP
Hansa Medical Products, Inc.
McDermott Corrine
Sweet Thomas J.
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