Patent ID: 6461327
Filing Date: 2002-10-08
Classification: A61M

Abstract:
An atrial isolator, comprising:a first tubular member having a proximal end, a distal end, and a lumen therebetween, the distal end having one or more drainage ports in fluid communication with the lumen; a first expandable occluder mounted on the distal end of the first tubular member and distal to the one or more drainage ports of the first tubular member, the first expandable occluder adapted to engage an opening of the superior vena cava into the right atrium; a second tubular member having a proximal end, a distal end, and first and second lumens therebetween, the distal end of the second tubular member having one or more drainage ports in fluid communication with the first lumen of the second tubular member, the distal end of the second tubular member having one or more cardioplegia delivery ports in fluid communication with the second lumen of the second tubular member, the one or more cardioplegia delivery ports located proximal the one or more drainage ports of the second tubular member; a second expandable occluder mounted on the distal end of the second tubular member and located between the one or more drainage ports of the second tubular member and the one or more cardioplegia delivery ports, the second expandable occluder adapted to engage an opening of an inferior vena cava and a tricuspid valve into a right atrium; and a locking mechanism to lock the first occluder and the second occluder at a fixed displacement, wherein the second tubular member is slideably inserted into the lumen of the first tubular member to provide adjustable displacement between the first expandable occluder and the second expandable occluder, and wherein the one or more cardioplegia delivery ports is in fluid communication with a right atrium when the second tubular member is placed to allow the second expandable occluder to engage an opening of an inferior vena cava and a tricuspid valve into a right atrium.