Method and apparatus for indicating pressure in chest drainage devices
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United States of America Patent
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Mar 30, 2010
Grant Date -
Jan 27, 2005
app pub date -
Aug 18, 2004
filing date -
Feb 3, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus is provided for indicating the presence of pressure within a collection chamber of a device such as a chest drainage device. The apparatus includes a bladder configured to be positioned within the collection chamber or within another chamber in fluid flow communication with the collection chamber. The bladder has a concavity formed therein and configured to contract or expand in response to pressure in the collection chamber. The apparatus also includes surfaces associated with the bladder that are configured to move with respect to one another upon contraction or expansion of the concavity of the bladder, thereby indicating pressure within the collection chamber.
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Family
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