Method for intraluminally inducing cardioplegic arrest and catheter for use therein
AssigneeHeartport, Inc.
InventorWilliam S. Peters
Life of this patent
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Abstract
A process for inducing cardioplegic arrest of a heart in situ in a patient's body, comprising maintaining the patient's systemic circulation by peripheral cardiopulmonary by-pass, occluding the ascending aorta through a percutaneously placed arterial balloon catheter, venting the left side of the heart, and introducing a cardioplegic agent into the coronary circulation. This procedure readies the heart for a variety of surgical procedures that can be performed percutaneously through lumina in the catheter. An aortic catheter for use in the process is also described.
Claims17
A method for inducing cardioplegic arrest of a heart in situ in a patient's body, comprising the steps of:
- (a) maintaining systemic circulation with peripheral cardiopulmonary by-pass;
- (b) occluding at least one of the patient's vena cavae with an inflatable cuff on a distal portion of at least one percutaneously placed venous catheter to isolate a fight atrium of the heart from at least a portion of the patient's venous system;
- (c) occluding the ascending aorta through a percutaneously placed arterial balloon catheter;
- (d) introducing a cardioplegic agent into the coronary circulation;
- and
- (e) venting the heart through a percutaneously placed catheter.
A method for inducing cardioplegic arrest of a heart in situ in a patient's body, comprising the steps of:
- (a) positioning a percutaneously placed venous catheter in at least a portion of both of the patient's vena cavae and in a right atrium of the heart;
- (b) occluding a superior vena cavae with a first inflatable cuff on a distal portion of the percutaneously placed venous catheter and occluding an inferior vena cavae with a second inflatable cuff on a distal portion of the percutaneously placed venous catheter to isolate the heart from at least a portion of the patient's venous system;
- (c) withdrawing blood from the venous system through a lumen in the venous catheter;
- (d) oxygenating the blood withdrawn from the venous system;
- (e) returning the oxygenated blood to the patient's arterial system;
- (f) occluding the ascending aorta through a percutaneously placed arterial balloon catheter,
- (g) introducing a cardioplegic agent into the coronary circulation;
- and
- (h) venting the heart through a percutaneously placed catheter.
A method for inducing cardioplegic arrest of a heart in situ in a patient's body, comprising the steps of:
- (a) maintaining systemic circulation with peripheral cardiopulmonary bypass;
- (b) isolating a fight atrium of the patient's heart from the patient's venous system with at least one percultaneously placed venous catheter;
- (c) isolating a coronary vasculature from the patient's arterial system with a percutaneously placed arterial balloon catheter;,
- (d) introducing a cardioplegic agent into the coronary vasculature;
- and
- (e) venting fluid from the heart through a percutaneously placed catheter.
Dependencies are inferred from the claim text.