Patent ID: 9131924
Filing Date: 2015-09-15
Classification: A61B

Abstract:
1. A surgical device for at least one of percutaneous osteoplastic surgery including vertebroplastic operations and for biopsy operations with a single device and in a single stage of insertion into the patient's body, comprising at least a guide for the injection of a therapeutic fluid into a bony part, a needle being slidable internally of said guide, said needle having an axial hollow, a first end provided with a gripping knob, and a second end, opposite said first end, said guide having a first end which defines at least a dispensing opening of said fluid internally of said bony part, and at least a second end which defines a loading opening of said fluid at the outside of said bony part, said dispensing opening being obliquely shaped, wherein said second end comprises a grip, which grip exhibits two wings having different shapes, such that the position and orientation of the oblique profile of the opening can be recognized and the operator can thus easily and safely orientate the position of the opening such as to direct the cementing fluid in the desired direction; and a spindle slidably inserted in the axial hollow of said needle, wherein the guide, the needle and the spindle are co-axial and wherein the first end of the needle includes bayonet coupling means for affixing the guide with the needle and providing two different relative positions of the needle relative to the guide when the needle and the guide are affixed, wherein said bayonet coupling means comprises a continuous groove formed on said first end of the needle, said continuous groove comprising two opposing portions arranged along opposite ends of the continuous groove, the two opposing portions defining two different axial depths to enable fastening said needle at two different set axial positions of the needle with respect to said guide.