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US 2024/0173464 A1Published application
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 method of infusing blood into a patient's vasculature, comprising:
- inserting an infusion cannula into the patient's vasculature, 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 expandable balloon disposed on a portion of the tubular sidewall, wherein the expandable balloon is configured to expand radially outward from the tubular sidewall to an expanded configuration;
- expanding the expandable balloon radially outward from the tubular sidewall to engage an inner wall of the patient's vasculature;
- wherein when the expandable balloon is engaged with the inner wall of the patient's vasculature in the expanded configuration, blood within the patient's vasculature is permitted to flow from proximal of the expandable balloon to distal of the expandable balloon;
- and
- infusing blood from outside of the patient's vasculature into the patient's vasculature through the infusion cannula.
5 more elements
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 expandable balloon disposed on a portion of the tubular sidewall, wherein the expandable balloon is configured to expand radially outward from the tubular sidewall to an expanded configuration;
- expanding the expandable balloon radially outward from the tubular sidewall to engage an inner wall of the vasculature of the patient;
- 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 through the infusion cannula.
7 more elements
Dependencies are inferred from the claim text.