Methods and apparatus for treating ischemic heart disease by providing transvenous myocardial perfusion
OwnerJames A. Nelson, Ascher Shmulewitz +1inventors
InventorsJames A. Nelson, Ascher Shmulewitz, John Burton
Life of this patent
Estimating the term…
Abstract
Methods and apparatus for supplying retrograde perfusion of chronically ischemic myocardium by forming one or more transmural passageways between a cardiac chamber and the coronary venous vasculature. The placement, size and number of the passageways are selected, and portions of the venous vasculature or coronary ostium optionally 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.
Claims20
Apparatus for use in treating ischemic heart disease by providing retrograde transvenous myocardial perfusion, the apparatus comprising:
- a catheter configured to be disposed in a patient's venous vasculature, the catheter having a lumen;
- and
- means for forming one or more transmural passageways between a portion of the patient's venous vasculature and a cardiac chamber so that a parameter corresponding to a peak pressure attained in the venous vasculature is less than a predetermined value.
A method of treating ischemic heart disease by providing retrograde transvenous myocardial perfusion, the method comprising:
- providing a catheter configured for transluminal, percutaneous insertion, the catheter having means for forming a transmural passageway in myocardial tissue;
- inserting the catheter transluminally and percutaneously through a patient's coronary sinus to a position in the patient's venous vasculature;
- and
- actuating the means for forming to form a transmural passageway between the position and a cardiac chamber, the transmural passageway having a size selected to maintain a parameter related to a pressure attained in the patient's venous vasculature to a value less than a predetermined value.
A method of treating ischemic heart disease by providing retrograde transvenous myocardial perfusion, the method comprising:
- providing a catheter configured for transluminal, percutaneous insertion, the catheter having means for forming a transmural passageway in myocardial tissue;
- inserting the catheter transluminally and percutaneously through a patient's coronary sinus to a position in the patient's venous vasculature;
- actuating the means for forming to form a transmural passageway between the position and a cardiac chamber, the position at which the transmural passageway is formed being selected to maintain a parameter related to a pressure attained in the patient's venous vasculature to a value less than a predetermined value.
A method of treating ischemic heart disease by providing retrograde transvenous myocardial perfusion, the method comprising:
- (a) providing a catheter configured for transluminal, percutaneous insertion, the catheter having means for forming a transmural passageway in myocardial tissue;
- (b) advancing the catheter transluminally and percutaneously through a patient's coronary sinus to a position in the patient's venous vasculature;
- (c) actuating the means for forming to form a transmural passageway between the position and a cardiac chamber;
- and
- (d) repeating (b) and (c) at a plurality of positions to form a number of transmural passageways, the number of transmural passageways selected to maintain a parameter related to a pressure attained in the patient's venous vasculature to a value less than a predetermined value.
Dependencies are inferred from the claim text.