Ulthera, Inc. Page 37
Table 6.3 Ultrasound Field Distribution by Transducer
TRANSDUCER
ISPTA*
[X 10
8
W/M2]
BEAM WIDTH
(AT FOCUS)
ORTHOGONAL
BEAM WIDTH
(AT FOCUS)
DS 4 - 4.5 1.19 0.39 mm 0.39 mm
DS 7 - 3.0 1.05 0.27 mm 0.29 mm
DS 7 - 3.0N 1.05 0.27 mm 0.29 mm
DS 7 - 4.5 1.12 0.27 mm 0.29 mm
DS 10 -1.5 0.34 0.24 mm 0.25 mm
DS 10 -1.5N 0.34 0.24 mm 0.25 mm
*Linearly calculated per 60601-2-62 and w ith attenuation of soft tissue assumption
The preset guidelines as they appear on the System for each transducer type are
listed below. The recommended line count for each region is depicted by the
numerical value displayed. Regions shown without a numerical value are regions
that are available for the treating clinician to select and treat at their discretion,
but a specific line count is not directed.
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