Abstract
The CorAide (The Cleveland Clinic Foundation, Cleveland, OH) blood pump is a third-generation permanent blood pump with a suspended rotor capable of continuous operation with no mechanical contact or wear. Its development was funded in part by the National Heart, Lung, and Blood Institute (N01-HV-58159), and the geometric design is now fixed. The finalized pump weighs 293 g and is characterized by having an inverted motor and a noncontacting rotating assembly supported in operation by a stable blood-lubricated fluid film bearing. The innovative simplicity of this design was validated by a cumulative 1.5 years of animal testing demonstrating the noncontacting, nonwearing, and nonthrombogenic characteristics of this pump. It consists of only three subassemblies: a pump housing, a stator assembly, and a rotating assembly.
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