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

Claim 8:
9. 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;
an extendable member provided on a portion of the sidewall, wherein the extendable member comprises a flap pivotally connected to the sidewall via a hinge; and
a mechanical actuator configured to rotate the flap about the hinge between the retracted position and the extended position;
wherein the extendable member is configured to extend radially outward from the sidewall;
wherein the sidewall defines an aperture located between the proximal end of the main tube and the distal end of the main tube;
wherein the flap is configured to rotate about the hinge between a retracted position in which the flap extends substantially parallel to the sidewall and an extended position in which the flap extends radially outward from the sidewall;
wherein the flap comprises a temperature sensitive material and is configured to rotate to the extended position upon exposure to a body temperature of the patient.