Cannula Design for Improved Proximal Venous Drainage and Distal Arterial Perfusion


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Kelly Emerton, PhD

What is it? What does it do?

A cannula for peripheral venous cannulation during ECMO procedures (Extracorporeal membrane oxygenation). The novel cannula design that has a series of channels on its back wall that are occluded by a cover slip that can be retrieved back to open any number of channels to the lumen of the vessel towards the side that is being blocked by the cannula itself.

Why is it better?

  • Design allows operator to retrieve the cover slip back to the level of insertion into the vessel such that the channels inside the vessel are open while those outside the vessel stay occluded.
  • In case of venous cannula this will allow drainage of venous blood from the extremity into the cannula and hence into the ECMO circuit.
  • Design addresses problem of inadequate venous drainage at site of venous cannulation.

What is its current status?

  • Has passed early feasibility tests.
  • Confirmed as being a Class II device by a regulatory consultant.
  • Patent Pending.


IP Status





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