Surgery – Respiratory method or device – Inhaled gas heated or humidified by exhaled gas
Reexamination Certificate
2007-05-01
2007-05-01
Yu, Justine R. (Department: 3771)
Surgery
Respiratory method or device
Inhaled gas heated or humidified by exhaled gas
C128S201250, C128S207160
Reexamination Certificate
active
10672835
ABSTRACT:
The present invention relates to a breathing-speaking valve intended to be used as a speaking valve of patients requiring filtration of inspiration air inhaled via tracheostomas and are mounted on a tracheal tube, which breathing-speaking valve includes a valve housing (1) inended to be attached to the tracheal tube and which comprises a check valve in the form of a membrane (10), which check valve opens when the patient inhales and closes at expiration and filter (7) for filtration of the inspiration air, which filter is located within this membrane, and optional, a nipple (6) for connection to a oxygen apparatus for oxygen delivery to the inspiration air whereby the filter (7) is laying against a number of ribs (5) located in the bottom (2) of the valve housing (1) and a nipple (6) for connection to a oxygen apparatus is mounted substantially perpendicular to the longitudinal direction of the valve housing (1) by the bottom of the valve housing (1), and said nipple (6) opens into the space (14) defined by the ribs (5) and the bottom (2) of the valve housing (1) and also opens into the filter (7) substantially parallel to the extension of the filter, whereby the distribution of the inspiration air and the optional oxygen delivery into the tracheal tube takes place in said space (14) and in the filter (7).
REFERENCES:
patent: 4538607 (1985-09-01), Saul
patent: 4763645 (1988-08-01), Kapp
patent: 4971054 (1990-11-01), Andersson et al.
patent: 5765557 (1998-06-01), Warters
patent: PCT/SE02/00523 (2003-02-01), None
Ali Shumaya
Baker & McKenzie LLP
Roche David I.
Tallitsch Daniel A.
Yu Justine R.
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