Percutaneous device for biomaterial injection in a form of particles of different sizes/paste inside a bone, comprises cylindrical trocart having an opening end with cutting edge, container for receiving biomaterial and an insertable piston

摘要

The percutaneous device further comprises a percussion end fixed in a removable way on the trocart end. The wall of the trocart end has an opening (36, 38) for passage of biomaterial. The container (14) comprises a cylindrical part having two open ends, and a removable element of obturation of the two ends of the container. The cylindrical part is inserted in the trocart by the end of the cylindrical part. When the obturation element is removed, the piston slides in the cylindrical part and in the end of the trocart. The end of the trocart (12) comprises an external flange to allow the rotation of the trocart around its longitudinal axis. The internal diameter of the end of the trocart is 9-15 mm. The internal and external walls of the trocart comprise a shoulder to limit the depression of cylindrical part of the container and the trocart. The flange comprises a notch and an opening to cooperate with the trocart rotation. The internal diameter of the cylindrical part is equal to the diameter part of the trocart extending between the internal shoulder and the cutting edge arranged on a non-orthogonal plane with the longitudinal axis of trocart. The external face of the trocart comprises a blade arranged parallel to the axis of the trocart.