Arterial device, system and method for removing embolic debris

An arterial device, for use with a patient having an aorta and a body blood circulation system, the arterial device comprising a distal portion arrangement configured for being accommodated in the aorta of the patient in use of the arterial device, said distal portion arrangement comprising:

• a perfusion lumen arrangement having at least one perfusion outlet and connectable to at least one perfusion source, said perfusion lumen arrangement being configured for providing therethrough a target perfusion flow into the aorta having a target perfusion flow rate that is greater than a nominal perfusion flow rate by an excess perfusion flow rate, wherein said nominal perfusion flow is sufficient for providing adequate fluid flow to the body blood circulation system of the patient;
• and
• a suction lumen arrangement having at least one suction inlet and connectable to a suction source, said suction lumen arrangement being configured for providing a suction flow out of the aorta, said suction flow having a suction flow rate;
• said distal portion being configured for providing fluid communication between at least one said perfusion outlet and at least one said suction inlet within the aorta via an outside of said distal portion, in use of the arterial device;
• wherein the arterial device is configured for enabling said target perfusion flow rate and said suction flow rate to be concurrently and selectively controlled to establish a recirculation flowfield between at least one said perfusion outlet and at least one said suction inlet within the aorta to cause embolic debris that may be present in the aorta to be diverted to said at least one suction inlet.

A method for removing embolic debris from an aorta of a patient having a body blood circulation system, comprising:

• (a) providing an arterial flow exchange system comprising a distal portion arrangement configured for being accommodated in the aorta of the patient in use of the arterial flow exchange system, said distal portion arrangement comprising:
• a perfusion lumen arrangement having at least one perfusion outlet and connectable to at least one perfusion source, said perfusion lumen arrangement being configured for providing therethrough a target perfusion flow into the aorta having a target perfusion flow rate that is greater than a nominal perfusion flow rate by an excess perfusion flow rate, wherein said nominal perfusion flow is sufficient for providing adequate fluid flow to the body blood circulation system of the patient;
• and
• a suction lumen arrangement having at least one suction inlet and connectable to a suction source, said suction lumen arrangement being configured for providing a suction flow out of the aorta, said suction flow having a suction flow rate;
• said distal portion being configured for providing fluid communication between at least one said perfusion outlet and at least one said suction inlet within the aorta via an outside of said distal portion, in use of the arterial flow exchange system;
• (b) accommodating said distal portion arrangement in the aorta of the patient so that at least one said suction inlet port is accommodated in the ascending aorta of the patient;
• (c) controllably providing a target perfusion flow into the aorta at said target perfusion flow rate;
• (d) controllably providing a suction flow out of the aorta at said suction flow rate;
• and
• (e) selectively controlling said target perfusion flow rate and said suction flow rate to establish a recirculation flowfield between at least one said perfusion outlet and at least one said suction inlet within the aorta to cause embolic debris that may be present in the aorta to be diverted to the respective at least one said suction inlet.

An arterial device, for use with a patient having an aorta and a body blood circulation system, the arterial device comprising a distal portion arrangement configured for being accommodated in the aorta of the patient in use of the system, said distal portion arrangement comprising:

• a perfusion lumen arrangement having at least one perfusion outlet and connectable to at least one perfusion source, wherein said perfusion lumen arrangement is configured for providing therethrough a perfusion flow having a perfusion flow rate;
• and
• a suction lumen arrangement having at least one suction inlet and connectable to a suction source, said suction lumen arrangement being configured for providing a suction flow out of the aorta, said suction flow having a suction flow rate;
• wherein said suction flow rate is greater than 0.5 liters per minute;
• and
• wherein the arterial device is configured for enabling said target perfusion flow rate and said suction flow rate to be selectively controlled to establish a recirculation flowfield between at least one said perfusion outlet and at least one said suction inlet within the aorta to cause embolic debris that may be present in the aorta to be diverted to said at least one suction inlet.