System and technique for measuring blood characteristics by centering a sensor in an artery
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United States of America Patent
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-
Nov 30, 1993
Issued Date -
N/A
app pub date -
Feb 25, 1993
filing date -
Jul 23, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A probe carrying sensor means at its distal tip is supported centrally within a blood vessel by an introducer catheter. The introducer catheter includes a percutaneously insertable shaft which is configured to engage and be supported by the inner luminal surface of the blood vessel. The distal tip of the catheter shaft is disposed along a central axis of the catheter such that when the catheter is disposed in the blood vessel, the distal tip will be disposed substantially along that axis and substantially in the center of the blood vessel lumen. The probe passed through the catheter thus will emerge from the distal outlet orifice of the catheter into the blood vessel at the central axis of the blood vessel.
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