Surgery – Means for introducing or removing material from body for... – Material introduced into and removed from body through...
Patent
1997-03-17
1999-02-09
Coggins, Wynn Wood
Surgery
Means for introducing or removing material from body for...
Material introduced into and removed from body through...
604 4, 604 96, A61M 3100
Patent
active
058687025
ABSTRACT:
A system for accessing a patient's cardiac anatomy which includes an endovascular aortic partitioning device that separates the coronary arteries and the heart from the rest of the patient's arterial system. The endovascular device for partitioning a patient's ascending aorta comprises a flexible shaft having a distal end, a proximal end, and a first inner lumen therebetween with an opening at the distal end. The shaft may have a preshaped distal portion with a curvature generally corresponding to the curvature of the patient's aortic arch. An expandable means, e.g., a balloon, is disposed near the distal end of the shaft proximal to the opening in the first inner lumen for occluding the ascending aorta so as to block substantially all blood flow therethrough for a plurality of cardiac cycles, while the patient is supported by cardiopulmonary bypass. The endovascular aortic partitioning device may be coupled to an arterial bypass cannula for delivering oxygenated blood to the patient's arterial system. The heart muscle or myocardium is paralyzed by the retrograde delivery of a cardioplegic fluid to the myocardium through patient's coronary sinus and coronary veins, or by antegrade delivery of cardioplegic fluid through a lumen in the endovascular aortic partitioning device to infuse cardioplegic fluid into the coronary arteries. The pulmonary trunk may be vented by withdrawing liquid from the trunk through an inner lumen of an elongated catheter. The cardiac accessing system is particularly suitable for removing the aortic valve and replacing the removed valve with a prosthetic valve.
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Datascope FDA 510(k) Application, "PER
Gifford, III Hanson S.
MacHold Timothy R.
Sterman Wesley D.
Stevens John H.
AT Hguyen
Coggins Wynn Wood
Grainger Jeffry J.
Heartport Inc.
Hoekendijk Jens E.
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