Pericardium retraction device for positioning a beating heart
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United States of America Patent
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Feb 11, 2003
Grant Date -
N/A
app pub date -
Apr 9, 2001
filing date -
Aug 17, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A surgical apparatus for suction attachment to a body tissue. The apparatus includes a tissue-engaging component defining a concave vacuum compartment. The vacuum compartment is connectable to a vacuum source. A valve selectively allows and prevents the generation of a vacuum in the vacuum compartment. The peripheral edge of the vacuum compartment is attachable by suction to the body tissue when the vacuum is generated. A valve closing arrangement automatically closes the valve upon the peripheral edge being separated from the body tissue so as to maintain vacuum generating efficiency for the other tissue-engaging components coupled to the same vacuum source.
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Family
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