System and methods for performing endovascular procedures
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Abstract
A system for inducing cardioplegic arrest and performing an endovascular procedure within the heart or blood vessels of a patient. An endoaortic partitioning catheter has an inflatable balloon which occludes the ascending aorta when inflated. Cardioplegic fluid may be infused through a lumen of the endoaortic partitioning catheter to stop the heart while the patient'"'"'s circulatory system is supported on cardiopulmonary bypass. One or more endovascular devices are introduced through an internal lumen of the endoaortic partitioning catheter to perform a diagnostic or therapeutic endovascular procedure within the heart or blood vessels of the patient. Surgical procedures such as coronary artery bypass surgery or heart valve replacement may be performed in conjunction with the endovascular procedure while the heart is stopped. Embodiments of the system are described for performing: fiberoptic angioscopy of structures within the heart and its blood vessels, valvuloplasty for correction of valvular stenosis in the aortic or mitral valve of the heart, angioplasty for therapeutic dilatation of coronary artery stenoses, coronary stenting for dilatation and stenting of coronary artery stenoses, atherectomy or endarterectomy for removal of atheromatous material from within coronary artery stenoses, intravascular ultrasonic imaging for observation of structures and diagnosis of disease conditions within the heart and its associated blood vessels, fiberoptic laser angioplasty for removal of atheromatous material from within coronary artery stenoses, transmyocardial revascularization using a side-firing fiberoptic laser catheter from within the chambers of the heart, and electrophysiological mapping and ablation for diagnosing and treating electrophysiological conditions of the heart.
232 Citations
53 Claims
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1-52. -52. (canceled)
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53. A method for performing an endovascular procedure on a patient, comprising the steps of:
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a) placing an aortic catheter sized and configured to be advanced to a location within a patient'"'"'s ascending aorta, having an expandable member on a distal portion thereof;
b) expanding the expandable member within the patient'"'"'s ascending aorta to occlude the passageway of the ascending aorta;
c) advancing a distal end of an elongated endovascular device for performing an endovascular procedure through a lumen in the elongated aortic catheter such that the distal end of the elongated endovascular device exits the elongated aortic catheter at a point distal to the expandable member; and
d) performing an endovascular procedure with the elongated endovascular device.
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Specification