Surgery – Respiratory method or device – Respiratory gas supply means enters mouth or tracheotomy...
Patent
1980-07-07
1982-04-20
Recla, Henry J.
Surgery
Respiratory method or device
Respiratory gas supply means enters mouth or tracheotomy...
137517, A61M 2500
Patent
active
043253660
ABSTRACT:
A valve and method for use with a tracheotomy tube is presented wherein a flexible diaphragm is located a predetermined distance from a valve seat, the diaphragm being sized to allow air to flow around its periphery in either direction responsive to normal breathing through a tracheotomy tube, and to evert into sealing engagement with the valve seat to block air flow out of the tracheotomy tube responsive to air flow above that present in normal breathing. The diaphragm is in one end of a first barrel and the valve seat is in a second barrel sized to be inserted into the first barrel around the periphery of the diaphragm. Threads are provided between the barrels for adjusting the distance between the diaphragm and the valve seat by rotation of the second barrel within the first barrel. The valve may be inserted into a flexible base having a flexible flange for attachment to the paratracheal skin around the stoma of the patient. A shower shield and filter are also presented for use with the valve and base.
REFERENCES:
patent: 2804076 (1957-08-01), Giraudon
patent: 2948296 (1960-08-01), Thorburn
patent: 3137299 (1964-06-01), Tabor
patent: 3683931 (1972-08-01), Che Lucci et al.
patent: 4040428 (1977-08-01), Clifford
Pope III John D.
Recla Henry J.
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