Antegrade cardioplegia catheter and method
First Claim
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1. A cardioplegia catheter for inducing cardioplegic arrest comprising:
- shaft with a distal end, a proximal end, an opening near the distal end, a port at the proximal end, and an inner lumen fluidly connecting the port and the opening, a distal portion of the shaft being configured to extend into the ascending aorta when a proximal portion of the shaft extends into a left chamber of the heart though the aortic valve and out of the heart through a penetration in a wall thereof;
an occlusion member mounted to the shaft distally of the opening and configured to occlude the ascending aorta between the brachiocephalic a and the coronary ostia; and
a sealing device for sealing the penetration in the wall of the heart around the shaft to inhibit blood flow therethrough wherein the sealing device comprises a purse string suture applicable to the wall of the heart around the penetration.
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Abstract
A cardioplegia catheter is configured to extend into the ascending aorta with a proximal portion of the shaft extending into a left chamber of the heart through a aortic valve and out of the heart through a penetration in a wall thereof. The cardioplegia catheter has an occlusion member configured to occlude the ascending aorta between the brachiocephalic artery and the coronary ostia. An arterial return cannula delivers oxygenated blood to the arterial system downstream of the occlusion member, while cardioplegic fluid is delivered through a lumen in the cardioplegia catheter upstream of the occlusion member to induce cardioplegic arrest.
197 Citations
14 Claims
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1. A cardioplegia catheter for inducing cardioplegic arrest comprising:
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shaft with a distal end, a proximal end, an opening near the distal end, a port at the proximal end, and an inner lumen fluidly connecting the port and the opening, a distal portion of the shaft being configured to extend into the ascending aorta when a proximal portion of the shaft extends into a left chamber of the heart though the aortic valve and out of the heart through a penetration in a wall thereof;
an occlusion member mounted to the shaft distally of the opening and configured to occlude the ascending aorta between the brachiocephalic a and the coronary ostia; and
a sealing device for sealing the penetration in the wall of the heart around the shaft to inhibit blood flow therethrough wherein the sealing device comprises a purse string suture applicable to the wall of the heart around the penetration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A cardioplegia catheter, comprising:
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a shaft with a distal end, a proximal end, an opening near the distal end a port at the proximal end, and an inner lumen fluidly connecting the port and the opening, a distal portion of the shaft being configured to extend into the ascending aorta when a proximal portion of the shaft extends into a left chamber of the heart through the aortic valve and out of the heart through a penetration in a wall thereof;
an occlusion member mounted to the shaft distally of the opening and configured to occlude the ascending aorta between the brachiocephalic artery and the coronary ostia;
a guiding device for guiding the distal end of the shaft into the ascending aorta with the proximal end extending through a left ventricle, a mitral valve and a left atrium of the heart and a sealing device for sealing the penetration in the wall of the heart around the shaft to inhibit blood flow therethrough, wherein the sealing device comprises a purse string suture applicable to the wall of the heart around the penetration. - View Dependent Claims (10, 11)
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12. A cardioplegia catheter, comprising:
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a shaft with a distal end, a proximal end, an opening near the distal end, a port at the proximal end, and an inner lumen fluidly connecting the port and the opening, a distal portion of the shaft being configured to extend into the ascending aorta when a proximal portion of the shaft extends into a left chamber of the heart through the aortic valve and out of the heart through a penetration in a wall thereof;
an occlusion member mounted to the shaft distally of the opening and configured to occlude the ascending aorta between the brachiocephalic artery and the coronary ostia;
a pressure monitoring device coupled to the shaft far monitoring pressure in the ascending aorta proximal to the occlusion member and a sealing device for sealing the penetration in the wall of the heart around the shaft to inhibit blood flow therethrough, wherein the sealing device comprises a purse string suture applicable to the wall of the heart around the penetration. - View Dependent Claims (13)
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14. A catheter system for inducing cardioplegic arrest comprising:
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a cardioplegia catheter including;
a shaft with a distal end, a proximal end, an opening at the distal end, a port at the proximal end, and an inner lumen fluidly connecting the port and the opening, a distal portion of the shaft being configured to extend into the ascending aorta when a proximal portion of the shaft extends into a left chamber of the heart through the aortic valve and out of the heart through a penetration in a wall thereof; and
an occlusion member mounted near the distal end of the shaft and configured to occlude the ascending aorta between the brachiocephalic artery and the coronary ostia;
a source of cardioplegic fluid in communication with the port at the proximal end of the shaft;
an arterial return cannula positionable in an artery downstream of the occlusion member for maintaining circulation of oxygenated blood in the patient'"'"'s arterial system; and
a sealing device for sealing the penetration in the wall of the heart around the shaft to inhibit blood flow therethrough wherein the sealing device comprises a purse string suture applicable to the wall of the heart around the penetration.
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Specification