Specifications

Diamondback 360 Orbital Atherectomy Device (DB 360)

The DB 360 includes the following subcomponents:

• Control Handle – Supports the air turbine.

• Triple Cable with Quick Connector – includes:

o Optical Tachometer Fiber – Connects to the Controller and provides for measurement of

Shaft/Crown rotational speed;

o Turbine Gas Intake Hose – Delivers compressed gas from the Controller to the Control Handle;

o Saline tubing – Used to deliver saline from the saline bag to the DB 360. A section of the tubing is

positioned within the roller pump located on the Controller to provide the required saline flow to the

DB 360.

• Crown Control Knob – Allows for independent extension of the Crown allowing for accurate positioning.

• Drive Shaft – The drive shaft or Shaft is a flexible, helically wound, stainless steel, multiple wire shaft that drives

Crown rotation. The Shaft has a central lumen that allows for passage of a guide wire.

• Eccentric diamond-coated Crown– Attached to the drive shaft and functions as the abrasive surface. It tracks

and rotates over the guide wire, rotating at high speed to remove or reduce the occlusive tissue into microscopic

particles. Various Crown sizes are available.

• Saline Infusion Port – Allows for infusion of saline through the Sheath around the Shaft.

• Sheath – The polyethylene Sheath covers the Shaft proximal to the Crown. The Sheath protects the shunt and

vascular tissue from the spinning Shaft and permits flow of saline to the area of the abrading surface of the

Crown.

• Turbine – An internal Control Handle component, driven by compressed gas (air or nitrogen) and rotates the

Shaft/Crown.

Figure 1. Diamondback 360 Orbital Atherectomy Device (DB 360)

Triple Cable

with Quick

ector

Control

Handle

Crown

Control

Knob

Crown

Sheath

covering

Shaft

Saline

Tubing

Saline

infusion

port