Distal Flow Arterial Cannula with Expandable Positioning Balloon
AssigneeCardiacAssist, Inc.
InventorMichael J. Linehan
Life of this patent
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Abstract
A cannula includes a tube having a proximal end, a distal end, and a tubular sidewall extending between the proximal end and the distal end. The cannula further includes an extendable member provided on a portion of the sidewall. The extendable member is configured to extend radially outward from the sidewall. The sidewall defines an aperture located between the proximal end and the distal end of the main tube.
Claims20
A cannula comprising:
- a main tube having a proximal end, a distal end, and a tubular sidewall extending between the proximal end and the distal end;
- and
- an extendable member provided on a portion of the sidewall,
- wherein the extendable member is configured to extend radially outward from the sidewall, and
- wherein the sidewall defines an aperture located between the proximal end and the distal end of the main tube.
The cannula according to claim 11, further comprising a mechanical actuator configured to rotate the flap about the hinge between the retracted position and the extended position.
An extracorporeal blood oxygenation system comprising:
- a drainage cannula configured for insertion into a vasculature of a patient;
- a blood pump fluidly connected to the drainage cannula and configured to draw blood from the patient via the drainage cannula;
- an oxygenator in fluid communication with the blood pump and configured to receive blood from the blood pump;
- an infusion cannula configured for insertion into the vasculature of the patient, the infusion cannula comprising:
- a main tube having a proximal end, a distal end, and a tubular sidewall extending between the proximal end and the distal end;
- and
- an extendable member provided on a portion of the sidewall,
- wherein the extendable member is configured to extend radially outward from the sidewall,
- wherein the sidewall defines an aperture located between the proximal end and the distal end of the main tube,
- wherein the proximal end of the infusion cannula is in fluid communication with the oxygenator and configured to return blood from the oxygenator to the vasculature of the patient.
A method of extracorporeal blood oxygenation comprising:
- inserting a drainage cannula into a first site of a vasculature of a patient;
- inserting an infusion cannula into a second site of the vasculature of the patient, the infusion cannula comprising:
- a main tube having a proximal end, a distal end, and a tubular sidewall extending between the proximal end and the distal end;
- and
- an extendable member provided on a portion of the sidewall,
- wherein the sidewall defines an aperture located between the proximal end and the distal end of the main tube;
- extending the extendable member of the infusion cannula radially outward from the sidewall of the infusion cannula,
- draining blood through the drainage cannula to a blood pump;
- pumping, via the blood pump, drained blood through an oxygenator to oxygenate the drained blood;
- and
- returning oxygenated blood to the vasculature of the patient via the infusion cannula.
Dependencies are inferred from the claim text.