Catheter for intravascular pressure measurement
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United States of America Patent
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-
Jun 26, 1990
Grant Date -
N/A
app pub date -
Apr 20, 1989
filing date -
Apr 22, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to a catheter for intravascular pressure measurement. The catheter includes a leader (3) with a transducer (4). The leader is surrounded by an inner sheath (2) with a reduced partial section portion (6) and by an outer sheath (1) arranged around the inner sheath. An end closure (5) joins the outer and inner sheath to each other at the distal end of the catheter to form an outer cavity (9), intended to be pressurized by an outside pressure source, whereby the attenuated partial section sealingly surrounds the leader or transducer (4). Pressure calibration in situ is enabled with the aid of the inventive catheter.
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