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Giannitsios, Demetrios

Beckman, Lorne

Steffen, Thomas

Demetrios Giannitsios

Thomas Steffen

Lorne Beckman

A system for injecting an incompressible low viscosity fluid into a bone cement reservoir adapted to be engaged with a cannula through which a high viscosity bone cement is transferred from the bone cement reservoir to a bone element is provided. The system comprises a control handle having a cylindrical body, a grip portion at an outer end of the cylindrical body and a central thumb-actuated plunger of a power piston, the grip portion being configured for receiving at least two fingers a user such as to permit actuation of the control handle by the single hand of the user, the cylindrical body including the power piston and a low viscosity fluid reservoir concentrically disposed relative to each other, the low viscosity fluid reservoir containing the incompressible low viscosity fluid and the power piston extending longitudinally through a center of the low viscosity fluid reservoir.

Bone cement injection device

A device for injecting a high viscosity material into a cannula, comprising a container being non-compliant and having an outlet adapted to communicate with the cannula for transferring the high viscosity material thereto, a pressure applicator in fluid communication with the container, the pressure applicator defining a fluid flow path through which an incompressible fluid is displaceable, and a material-moving member interrupting the fluid flow path and defining an incompressible fluid receiving portion on one side thereof in communication with the fluid flow path and a high viscosity material receiving portion in communication with the outlet of the container on an opposed side. The material-moving member being displaceable by a pressure of the incompressible fluid acting thereagainst to force the high viscosity material out of the high viscosity material receiving portion of the container and into the cannula.

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Edmonton, Canada

Demetrios Giannitsios