Patent ID: 11931496
Assignee: CARDIACASSIST, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 9:
10. 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 expandable balloon, wherein an entirety of the expandable balloon extends only partially around a circumference of the sidewall, the circumference lying in a plane perpendicular to a central longitudinal axis of the main tube,
wherein the expandable balloon 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 a 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.