A-Med Systems, Inc.

Desmond P O'Connell

Walid Najib Aboul-Hosn

Kelly J McCrystle

William Russell Kanz

A cannula is provided with one or more pressure transducers for measuring fluid pressure interiorly or exteriorly of the cannula. The pressure transducers may be mounted integrally with the tubular wall defining the main lumen of the cannula, or they may comprise differential pressure transducers mounted in dedicated lumens in communication with the main lumen. The pressure measurements from the transducers is used to determine fluid flow rate.

Pressure sensing cannula

A blood pump for use in CPB and other heart surgeries includes a sterilizable blood pump removably attached to a turbine drive unit. An impeller within the fully enclosed and sterile blood pump moves the blood from the pump inlet to the pump outlet. The pump snaps onto the turbine drive unit and a magnetic coupling between the pump and the drive unit is used to transmit the rotation of a turbine shaft to the pump impeller. The turbine drive unit is preferably a sterilizable unit which may be placed directly in the sterile surgical field. The blood pump with turbine drive allows the blood pump to be placed close to the surgical site and minimizes the length of the tubing required for connecting the pump to the patient.

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Seattle, WA, United States of America

Desmond P O'Connell