Specifications
Diamondback360®CoronaryOrbitalAtherectomySystem
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B. Maximum orbit and resulting lumen diameter
The following table shows the maximum orbit and resulting lumen diameter for classic
crown sizes, at incremental rotational speeds, for 20 passes (approximately 5 min of
treatment time).
Note: A pass is defined as once out and back across the lesion. Orbit data presented
are based on a 6 cm pass distance at a travel rate of 1 cm per second.
Minimum
Reference Vessel
Diameter* (mm)
Crown Size
(mm)
Rotational
Speed (rpm)
Maximum Lumen
Diameter** (mm)
Average +2 SD
2.00 1.25
80,000 1.64
120,000 1.84
2.50 1.50
80,000 1.95
120,000 2.16
SD = standard deviation
* The minimum reference vessel diameter (RVD) is based on the following ratio: Orbit at 20 passes/RVD
= 0.80. Quantitative angiography is recommended to determine vessel diameter. The values in this
table are for reference only.
**These lumens are based on in vitro test results at approximately 5 min of treatment time (20 passes) at
a rate of approximately 1 cm per second of travel speed. Actual clinical results may vary.