Methods of implanting an aorto-coronary sinus shunt for myocardial revascularization
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Abstract
A permanent shunt is implanted in a minimally invasive manner to carry arterial blood from the aorta into the relatively lower pressure venous bed of the coronary sinus. Since egress from the coronary sinus into the right atrium is at least partially blocked, the higher pressure arterial blood is forced through the coronary sinus venous bed in a retrograde fashion, thus accomplishing perfusion of those arterial beds that are deprived of normal antegrade coronary arterial blood flow on account of coronary arterial stenoses. In one embodiment, the shunt is delivered percutaneously via a catheter-based delivery system. In another embodiment, the shunt is delivered in a minimally invasive, preferably thoracoscopic manner.
61 Citations
36 Claims
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1-19. -19. (canceled)
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20. A method of providing permanent retrograde perfusion from the aorta to the coronary sinus, comprising:
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providing a shunt with first and second ends;
introducing a single delivery device through between a hole through the aorta and right atrial wall and the coronary sinus;
percutaneously delivering a first end of the shunt in the mouth of the coronary sinus with the delivery device;
percutaneously delivering a second end of the shunt in the aorta with the delivery device; and
permitting permanent retrograde perfusion of the coronary sinus with blood from the aorta. - View Dependent Claims (21, 22, 23, 24)
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25. A method of providing permanent retrograde perfusion from the aorta to the coronary sinus, comprising:
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providing a shunt with first and second ends;
introducing a first guidewire into the right atrium and into the coronary sinus;
introducing a second guidewire into the aorta;
delivering the first end of the shunt over the first guidewire and to the mouth of the coronary sinus;
delivering the second end of the shunt over the second guidewire and into the aorta, wherein at least a portion of the shunt between the first and second ends extends outside of the right atrial wall; and
permitting permanent retrograde perfusion of the coronary sinus with blood from the aorta. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 34, 35, 36)
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Specification