Ensure that the speaker unit and the Doppler probe are securely connected
through the cord. Holding the Doppler probe, place the tip on the site to be
examined. Press the ON button. Adjust volume as desired.
Move the instrument very slowly across the surface being examined. The sensitivity
pattern is like a searchlight, so angle the Doppler for best signal. The frequency
(pitch) of the Doppler shifted sounds is related both to flow velocity and to the
angle between the instrument and the axis of flow. Do not press hard or blood
flow may be affected.
Clinical Usage: Vascular Exams
The Tria vascular Doppler may be used:
1) Following the results of reconstructive vascular surgery in the recovery room,
at bedside and later during office examinations. The noninvasive clinical evaluation
with this Doppler instrument can be directly related to arteriographic findings.
2) Taking systolic blood pressure using Doppler ultrasound. Leg and ankle
blood pressures taken by Doppler can provide information as to the severity of
arteriosclerotic disease of the legs and the location of the impaired segments.
3) Perioperative evaluation of the femoral artery when this artery is used as the
cannulation site in cardiopulmonary bypass procedures.
4) Screening for venous thrombosis and chronic venous insufficiency.
5) Taking a pulse rate or Doppler systolic blood pressure on the hypotensive
and hypovolemic patient.
6) Useful in checking any arterial injection or catheterization site before and
after such procedures.
7) Useful in emergency medicine and noisy environments to take blood pres-
sure, pulse rates and to evaluate suspected arterial injuries.
8) Urological applications include evaluation of carioceles, testicular torsion
diagnosis, and impotence assessment
.
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General Doppler Cautions and Considerations
DANGER: Do not use the Tria Doppler in the presence of flammable anesthetics.
WARNING: This product is not designed for sterile use.
CAUTION:
Do NOT
- immerse in any liquid (except the waterproof fetal probe)
- use high-temperature sterilizing processes (such as autoclaving)
- use solvent cleaners
- use E-beam or gamma radiation sterilization
Important:
The 5 MHz vascular probe is not intended for fetal use.
The 2 MHz fetal probe is not intended for vascular use.
CAUTION:
Federal law restricts this device to sale by or on the order of a
licensed practitioner.
Acoustic Safety
Acoustic Safety-According to the American Institute of Ultrasound in Medicine
(AIUM), “No confirmed biological effects on patients or instrument operators
caused by exposure at intensities typical of present diagnostic ultrasound
instruments have ever been reported. Although the possibility exists that such
biological effects may be identified in the future, current data indicate that the
benefits to patients of the prudent use of diagnostic ultrasound outweigh the
risks, if any, that may be present.”
The calculated derated intensity values for the fetal and vascular probes com-
pare very favorably with previously reported acoustic safety data for Doppler
ultrasound instruments. These values are appropriate for all clinical applica-
tions recommended in this manual.
Содержание Medasonics TRIA P338
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