Method and apparatus for treating ischemic heart disease by providing transvenous myocardial perfusion
AssigneeTransVascular, Inc.
InventorsJames A. Nelson, Ascher Shmulewitz, John Burton
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Abstract
Methods and apparatus are provided for use in intraoperative and percutaneous procedures for supplying long-term retrograde perfusion of the myocardium via one or more conduits disposed between the left ventricle and the coronary venous vasculature. The conduits are of a selected size and number, and portions of the venous vasculature or coronary ostium are partially or completely occluded, to maintain a parameter related to the pressure attained in the venous vasculature to a value less than a predetermined value.
Claims26
Apparatus for use in treating ischemic myocardium of a human or animal patient by providing retrograde transvenous myocardial perfusion, the apparatus comprising a kit including:
- a device for forming a passageway, substantially within the patient's myocardium between the left ventricle and venous vasculature:
- a conduit adapted to be transluminally disposed substantially within the passageway formed between a patient's left ventricle and the patient's venous vasculature, the conduit having an outlet in the patient's venous vasculature, the conduit adapted to channel a volume of blood from the left ventricle to the venous vasculature;
- means for achieving a preselected degree of occlusion of the patient's venous vasculature proximal of the outlet to direct the volume of blood to the ischemic myocardium;
- and,
- means for limiting the peak pressure attained in the patient's venous vasculature to less than 60 mm Hg.
A method of providing retrograde transvenous myocardial perfusion to treat ischemic myocardium, the method comprising:
- forming a conduit between a patient's left ventricle and the patient's venous vasculature, the conduit having an outlet in the patient's venous vasculature, the conduit channeling blood from the left ventricle to the venous vasculature;
- and
- at least partially occluding the patient's venous vasculature proximally of the outlet to direct retrograde blood flow to the ischemic myocardium.
Dependencies are inferred from the claim text.