Diamondback 360 Peripheral Orbital Atherectomy System

The Diamondback 360® Peripheral Orbital Atherectomy System (OAS) is designed to contact 360 degrees of the vessel wall and differentially sand hard plaque while minimizing damage to the media. Low profile orbital technology enables treatment of arterial calcium via multiple access site options.

In multiple clinical studies with real-world patients and the most challenging lesions, OAS has demonstrated successful lesion modification while maintaining low complication rates. With a portfolio of 3 unique crown designs in multiple sizes and varying lengths, Diamondback 360® OAS is redefining minimally invasive allowing you to treat patients with PAD once thought to be untreatable.

Peripheral and Coronary Patients Served

OAS is the Solution for Arterial Calcium

When treating peripheral artery disease (PAD), even with angiography, peripheral calcium tends to be underestimated.9 And studies show that calcium negatively affects patient outcomes.30,32  


  • Diabetes
  • Chronic Kidney Disease
  • Advanced Age (>65 y/o)
  • Smoker
  • Dyslipidemia
  • Hypertension
  • Prior CABG
  • Known PAD/CAD



  • Decreased balloon and stent success31,33
  • Associated with a higher procedural complication rate that may be a predictor of long-term durability30,32
  • High frequency of dissections31



See How Diamondback 360® Peripheral OAS Reduces Arterial Calcium

Explore Diamondback 360® OAS

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  • Crowns
  • Accessories


Solid Crown

  • The mass of the crown is designed for maximum calcium removal
  • Diamond-coated surface area allows for short run times

Classic Crown

  • The most flexible of our crown configurations
  • Designed for vessel bends, ostial lesions and distal below-the-knee procedures

Micro Crown

  • Designed with flexibility for tortuous vessels and tight bends below-the-knee
  • Increased mass of classic micro crown for more effective sanding
  • GlideAssist mode for the 1.25 Micro Crown enables the crown to spin at a slow speed (5k RPM) for easier tracking and removal of the device over the guide wire


ViperWire Advance® and ViperWire Advance® with Flex Tip Peripheral Guide Wires

ViperWire Advance® and ViperWire Advance® with Flex Tip Peripheral Guide Wires are designed specifically for the Diamondback 360® Peripheral Orbital Atherectomy Systems to facilitate proper device placement within the artery to enable orbital gain during treatment.

ViperSlide® Lubricant

ViperSlide is an exclusive lubricant for use with CSI’s Orbital Atherectomy Systems. ViperSlide increases the lubricity, therefore reducing friction between the device and the ViperWire Advance® Guide Wire.

ViperTrack® Radiopaque Tape

ViperTrack adheres directly to the patient’s skin, providing accurate lesion measurement when using fluoroscopic or radiographic imaging.

OAS Pump

The OAS pump mounts directly onto an I.V. pole and provides power and the pumping mechanism for the Diamondback 360® System.

The Diamondback 360 has a unique Mechanism of Action designed to:

  • Differentially sand arterial calcium
  • Minimize damage to the media
  • OAS helps preserve treatment options by reducing the need for bailout stents in calcified anatomy

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