Catheter to be inserted into a blood vessel, and a method for detection of substances and metabolic changes in a heart
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United States of America Patent
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Jul 24, 2001
Grant Date -
N/A
app pub date -
May 13, 1998
filing date -
Mar 11, 1998
priority date (Note) -
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status (Latency Note)
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Abstract
A catheter to be inserted into a blood vessel and guided by said blood vessel which comprises a substantially cylindrical wall structure which defines an elongated catheter body having a proximal end and a distal end, an opening formed in said cylindrical wall structure which extends into said catheter body forming a microdialysis chamber therein having a proximal and distal end, a microdialysis membrane covering said opening such that said microdialysis chamber has at least a portion of said microdialysis membrane as part of its wall, first and second channels extending through at least a portion of said catheter body and having proximal and distal ends, a cross channel connecting one of said first or second channels to the more distal side of said microdialysis chamber and the other of said first or second channels connected to the more proximal side of said microdialysis chamber, said proximal ends of said first and second channels being connected to an external means for circulating, monitoring and analyzing a microdialysis solution passing therethrough.
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