Patent ID: 7766919
Filing Date: 2010-08-03
Classification: A61B,A61F,A61J,A61M

Abstract:
1. A medical device for mixing and extruding a bone replacement material comprising: a syringe comprising a single hollow cylindrical chamber having an upward opening and a downward opening, and a movable member configured to slide within the chamber; a first chemically reactive substance that is located within the syringe, said substance being liquid above approximately zero degree centigrade and being maintained in a frozen state at a first temperature and disposed at a lower location; and a second chemically reactive substance that is solid at room temperature and located in the syringe atop the first substance without mixing with the first substance when the syringe is maintained at the first temperature, such second chemically reactive substance having a plurality of pores; wherein, the first substance thaws to a liquid state upon the syringe being exposed to room temperature such that actuation of the movable member pushes the thawed first chemically reactive substance upward into the pores of the second chemically reactive substance, the volume of the first substance being sufficient to immerse the second substance to allow for mixing of such first and second substances within the hollow cylindrical chamber prior to extrusion through the upward opening.