Stent for arterialization of the coronary sinus and retrograde perfusion of the myocardium
OwnerEric C. Martininventor
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Abstract
The present invention concerns a novel stent and a method for communicating oxygenated blood directly from the left ventricle to the coronary sinus to provide retrograde perfusion to the myocardium. The stent is placed substantially within the coronary sinus with its trailing end protruding into the right atrium and the leading end protruding into the left ventricle. The stent has a smaller passageway at the trailing (right ventricular) end and at the leading (left ventricle) end, and has a covering at the trailing end. The smaller passageway and the cover at the trailing end to promote retrograde flow into the venous system of the heart and specifically the myocardium of the left ventricle and to reduce a significant left-to-right shunt.
Claims20
A stent for supplying oxygenated blood to heart tissue retrogradely through the coronary sinus comprising:
- a tubular member having a leading end and a trailing end and a passageway therethrough,
- said tubular member having one or more interstices therein,
- wherein cross sectional area of said tubular member varies along its extent,
- said tubular member tapering cross sectionally toward the leading end and toward the trailing end, and
- said tubular member surrounded by a cover near the trailing end.
A stent for supplying oxygenated blood to heart tissue retrogradely through the coronary sinus comprising:
- a tubular member having a leading end and a trailing end and a passageway therethrough,
- said tubular member having one or more interstices therein,
- wherein cross sectional area of said tubular member varies along its extent,
- said tubular member tapering having a constriction near the leading end and a constriction near the trailing end, and
- said tubular member surrounded by a cover near the trailing end.
A stent for supplying oxygenated blood to heart tissue retrogradely through the coronary sinus comprising:
- a tubular member having a leading end and a trailing end and a passageway therethrough,
- said tubular member having one or more interstices therein,
- wherein cross sectional area of said tubular member varies along its extent, and
- said tubular member surrounded by a cover near the trailing end,
- wherein diameter of the cross sectional area at the trailing end maintains pressure in the coronary sinus to provide retrograde perfusion to the myocardium while avoiding damage to the venous system.
Dependencies are inferred from the claim text.