EDAN SONOTRAX Basic User Manual - page 28

SONOTRAX Series Ultrasonic Pocket Doppler User Manual                              Operation 

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3.9 Vascular Examining (Optional)   

WARNING 

The device is not intended for ophthalmic use. Do not use it for examining ophthalmic 

vessels, or any other procedures which may cause the ultrasound beam to pass through 

the eye. 

4MHz, 5MHz or 8MHz vascular probes are to be connected to the Doppler to perform vascular 

examination.  

Choose the appropriate probe as required. The probe with how frequency has a deeper 

penetration depth, while the probe with high frequency has better resolution and wider detecting 

range. The 4MHz vascular probe is optimized for examining blood vessels; the 5MHz vascular 

probe is optimized for examining deeper vessels, and the 8MHz vascular probe is optimized for 

examining surface vessels. 

Apply a liberal amount of gel on the site to be examined. Place the probe at a 45º angle on the skin 

over the vessel to be examined. Adjust the position of the probe to obtain the loudest blood flow 

sound. Refer to figure 3-13 for the probe sites: