Minimally-invasive devices and methods for treatment of congestive heart failure
First Claim
1. A method of reshaping a patient'"'"'s heart comprising:
- inserting a thorascopic measurement device into the chest of a patient, the thorascopic measurement device comprising a shaft having an inner lumen and a flexible band extending therefrom;
gauging a size of a left ventricle via the thorascopic measurement device;
determining an amount by which the left ventricle should be reduced from the gauging of its size; and
reducing a dimension of the left ventricle in accordance with the determined amount.
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Accused Products
Abstract
A method of treatment of congestive heart failure comprises the steps of introducing an aortic occlusion catheter through a patient'"'"'s peripheral artery, the aortic occlusion catheter having an occluding member movable from a collapsed position to an expanded position; positioning the occluding member in the patient'"'"'s ascending aorta; moving the occluding member from the collapsed shape to the expanded shape after the positioning step; introducing cardioplegic fluid into the patient'"'"'s coronary blood vessels to arrest the patient'"'"'s heart; maintaining circulation of oxygenated blood through the patient'"'"'s arterial system; and reshaping an outer wall of the patient'"'"'s heart while the heart is arrested so as to reduce the transverse dimension of the left ventricle. The ascending aorta may be occluded and cardioplegic fluid delivered by means of an occlusion balloon attached to the distal end of an elongated catheter positioned transluminally in the aorta from a femoral, subclavian, or other appropriate peripheral artery.
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Citations
21 Claims
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1. A method of reshaping a patient'"'"'s heart comprising:
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inserting a thorascopic measurement device into the chest of a patient, the thorascopic measurement device comprising a shaft having an inner lumen and a flexible band extending therefrom; gauging a size of a left ventricle via the thorascopic measurement device; determining an amount by which the left ventricle should be reduced from the gauging of its size; and reducing a dimension of the left ventricle in accordance with the determined amount. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of reshaping a patient'"'"'s heart comprising:
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introducing an expansible member through a chest port and into a left ventricle of the patient'"'"'s heart via a mitral valve, the expansible member being at least partially collapsed; expanding the expansible member within the left ventricle of the patient'"'"'s heart; and reducing a volume of the left ventricle by an amount based upon the expanded volume of the expansible member. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A method of reshaping a patient'"'"'s heart comprising:
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inserting a measurement device into the chest of a patient, the measurement device comprising a shaft having an inner lumen and an adjustable length band extending therefrom; encircling the heart closely with the adjustable length band; determining a size of the left ventricle with reference to a length of the band; and reducing a volume of the left ventricle by an amount based upon the determined size of the left ventricle. - View Dependent Claims (18, 19, 20, 21)
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Specification