Attachment Device for a Tracheostoma Valve
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United States of America Patent
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Issued Date -
May 14, 2015
app pub date -
Jan 23, 2015
filing date -
Apr 1, 2009
priority date (Note) -
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Abstract
An attachment device for a tracheostoma valve has a flexible layer structure having a stoma opening therein, and a circumferential flange attached to the flexible layer structure. The flexible layer structure has at least a layer portion that substantially has a funnel shape discharging into the stoma opening. A circumferential attachment area, where the flexible layer structure is attached to the circumferential flange, is situated at a distance from a circumferential edge of the stoma opening. Part of the funnel shape extends between the circumferential attachment area and the circumferential edge of the stoma opening.
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