Patent ID: 6363276
Filing Date: 2002-03-26
Classification: A61M,F04D,F16C

Abstract:
A system for cardiac assist and arrhythmia treatment comprising:a. an implantable defibrillator operatively connected to a heart and said defibrillator having means for administering a therapeutic treatment to the heart responsive to the occurrence of said arrhythmia; b. at least one implantable blood pump operatively connected between a circulatory system and a ventricle of a heart said implantable blood pump having: i. a stator member; ii. a rotor member disposed in said stator member for rotation therein; iii. a magnetic suspension having a stator magnet portion carried by said stator member and a rotor magnet portion carried by said rotor member, said stator member and rotor magnet portions cooperating to magnetically support said rotor member radially in said stator member such that an annular magnetic suspension gap is created between said stator member and said rotor member; iv. a magnetic drive having a stator motor portion carried by said stator member and a rotor motor portion carried by said rotor member, said stator motor portion and said rotor motor portion cooperating to magnetically rotate said rotor member relative to said stator member to pump blood through said blood pump; and v. an axial bearing having a stator axial bearing portion carried by said stator member and a rotor axial bearing portion carried by said rotor member, said stator axial bearing portion and said rotor axial bearing portion cooperating to magnetically support said rotor member axially in said stator member; and c. an implantable blood pump flow rate controller operable to reduce a volume of blood in said ventricle prior to said defibrillator administering said therapeutic treatment.