Transonic HT331-FT - Perivascular Flowprobes & Clamp-on Tubing Flowsensors

AU-OPR-AureFloFT-EN,
Rev H
3
F. Perivascular Flowprobes & Clamp-on Tubing Flowsensors
Transonic
®
offers a wide range of intraoperative Perivascular Flowprobes and Extracorporeal Clamp-on
Tubing Flowsensors. Transonic
®
Flowsensors connect to a two-meter (~ 6.5 ft.) extension cable attached to
the front of the HT300 Series Compatible Flowmeter. Two or four ultrasonic transducers within the Sensor
body transmit a minimal level of ultrasound through a rectangular sensing window (Appendix E: Theory
of Operation, page 43). Volume ow of all non-aerated liquid passing through the sensing window is
measured.
1. PERIVASCULAR FLOWPROBES
Transonic
®
HQ-Series Intraoperative,
Perivascular Flowprobes work with HT300
Series Compatible Flowmeters to measure
instantaneous and average volume ow in
blood vessels or grafts, 0.5 mm to 36 mm in
diameter (Fig. 1.4). Perivascular Flowprobes
measure blood ow in exposed vessels:
a) at the beginning of a procedure, for accurate
assessment of volume ow.
b) at the conclusion of surgery prior to patient
closing, on newly implanted natural or
articial bypass grafts, on vessels supplying
restored, reconstructed or transplanted
organs and tissues.
2. CLAMP-ON FLOWSENSORS
Transonic
®
HQ-XL-Series Clamp-on Tubing Flowsensors apply ultrasound
energy through exible tubing to monitor instantaneous and average
volume ow of blood, cardioplegia or other solutions in (Fig. 1.5):
a) Extracorporeal procedures such as cardio-pulmonary bypass (CPB);
extracorporeal membrane oxygenation (ECMO); hemodialysis;
plasmapheresis; arteriovenous hemoltration (CAVH)
b) Extracorporeal perfusion, infusion or transfusion procedures (such
as allograft perfusion for pre-transplantation preservation; coronary
reperfusion or retroperfusion; continuous total nutrient infusion,
saline or dextrose infusion; blood transfusion)
c) Extracorporeal shunts (portal vein bypass shunts, or lower body/upper
body bypass shunts during liver transplants).
Fig. 1.4: An Array of Perivascular Flowprobes
Fig. 1.5: Clamp-on Flowsensor
Introduction