System and technique for measuring blood characteristics by cent

Details System and technique for measuring blood characteristics by cent System and technique for measuring blood characteristics by cent

1993-02-25

1993-11-30

Aschenbrenner, Peter A.

Surgery

Truss

Pad

604268, 604280, 604281, A61M 3700

Patent

active

052656063

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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Pieper et al., "Catheter-Tip Gauge for Measuring Blood Flow Velocity and Vessel Diameter in Dogs", Journal of Applied Physiology, vol. 24, No. 2, Feb. 1968, pp. 259-261.

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