Patent ID: 8348889
Filing Date: 2013-01-08
Classification: A61M

Abstract:
1. A medical device for delivering fluid from a fluid source to a coronary passageway in a patient during a surgical procedure on the patient, the device comprising: an elongate tubular shaft having an outer surface extending from a proximal end to a distal end, an inner passage in fluid communication with the fluid source during use of the device, and a lateral hole in the outer surface in fluid communication with the inner passage for delivering fluid from the device in a generally lateral direction relative to the shaft during surgery; a distal non-sealing balloon connected to the shaft at a location distal to the lateral hole and having an exterior surface and an interior surface opposite the exterior surface; a plurality of projections extending outward from the exterior surface of the distal non-sealing balloon, each of the projections having a base connected to the exterior surface of the distal non-sealing balloon and a tip opposite the base, the tip being positioned to engage an interior surface of the coronary passageway to retain the shaft in a desired position within the coronary passageway by preventing the shaft from moving in a proximal direction when the balloon is inflated during surgery, the tip of each projection being spaced from the corresponding base by a distance sufficient to maintain a space between the exterior surface of the distal non-sealing balloon and the interior surface of the coronary passageway permitting fluid flow between the exterior surface of the distal non-sealing balloon and the interior surface of the coronary passageway when the distal non-sealing balloon is inflated; and a proximal sealing balloon connected to the shaft between the lateral hole and the proximal end, the proximal sealing balloon having an exterior surface that engages and seals against the interior surface of the coronary passageway preventing flow past the proximal sealing balloon when inflated.