Bifurcated outflow cannulae
AssigneeCircuLite, Inc.
InventorsRobert C. Farnan, John P. Budris
Life of this patent
Estimating the term…
Abstract
A bifurcated cannula for directing blood into the arterial system. The bifurcated cannula including an ingress channel and first and second egress channels. The first egress channel directs a first portion of the blood entering the bifurcated cannula into the arterial system in a first direction. The second egress channel directs a second portion of the blood entering the bifurcated cannula into the arterial system in a direction that opposes the first direction.
Claims12
A method of directing blood from a pump to the arterial system using a bifurcated cannula comprising an ingress channel and first and second egress channels, and first and second stent grafts having proximal and distal ends, the method comprising:
- directing the blood from the pump into the ingress channel of the bifurcated cannula;
- directing a first portion of the blood entering the bifurcated cannula from the ingress channel through the first egress channel;
- directing a second portion of the blood entering the bifurcated cannula from the ingress channel through the second egress channel;
- inserting the distal end of the first stent graft into the arterial system;
- inserting the distal end of the second stent graft into the arterial system;
- expanding the first stent graft to fluidicly couple the distal end of the first stent graft to the arterial system;
- expanding the second stent graft to fluidicly couple the distal end of the second stent graft to the arterial system;
- fluidicly coupling the proximal end of the first stent graft to the first egress channel;
- fluidicly coupling the proximal end of the second stent graft to the second egress channel;
- directing the first portion of the blood from the first egress channel through the first stent graft into the arterial system;
- directing the second portion of the blood from the second egress channel through the second stent graft into the arterial system;
- disengaging the first and second egress channels from the respective proximal ends of the first and second stent grafts;
- and
- fluidicly coupling the first and second stent grafts such that the blood flowing in a first direction enters the first or second stent graft and flows into the other of the first or second stent graft in the first direction and then flows back into the arterial system in the first direction.
A method of directing blood from a pump to the arterial system using a bifurcated cannula comprising an ingress channel and first and second egress channels, and first and second stent grafts having proximal and distal ends, the method comprising:
- fluidicly coupling a first end of a flexible cannula body to the left side of a heart;
- fluidicly coupling a second end of the flexible cannula body to the pump;
- fluidicly coupling the pump to the ingress channel of the bifurcated cannula;
- inserting the distal ends of the first and second stent grafts into the arterial system;
- expanding the first stent graft to fluidicly couple the distal end of the first stent graft to the arterial system;
- expanding the second stent graft to fluidicly couple the distal end of the second stent graft to the arterial system;
- fluidicly coupling the proximal end of the first stent graft to the first egress channel;
- fluidicly coupling the proximal end of the second stent graft to the second egress channel;
- disengaging the first and second egress channels from the respective proximal ends of the first and second stent grafts;
- and
- fluidicly coupling the first and second stent grafts such that the blood flowing in a first direction enters one of the first or second stent grafts and flows into the other of the first or second stent grafts in the first direction and then flows back into the arterial system in the first direction.
Dependencies are inferred from the claim text.