Device and method for introducing a bone cement mixture into a damaged bone

A bone cement substitute kit for introducing a bone cement mixture into the damaged bone of a patient, the kit comprising:

• a first bone cement component and a second bone cement component, the first and second bone cement components for forming the bone cement mixture;
• an injection device for containing the bone cement mixture and including an outlet, the injection device being configured to dispense the bone cement mixture from the injection device by advancing the bone cement mixture through the outlet;
• and
• a needle in fluid communication with the outlet and including a cannula and a tip portion extending therefrom, the cannula having a lumen formed therethrough and a distal portion, the lumen for advancing the bone cement mixture to the distal portion, the distal portion having an open distal end and a side aperture formed through the distal portion, the tip portion attached to the distal portion of the cannula such that the side aperture is proximal the tip portion, the tip portion configured for piercing the damaged bone of the patient to define a bone opening and to direct advancement of the bone cement mixture towards the side aperture while preventing advancement of the bone cement mixture through the distal end of the distal portion of the cannula, and the distal portion having an outer perimeter with cross-sectional dimensions substantially matching dimensions of the bone opening so as to tightly fit the bone opening such that advancement of the bone cement mixture through the side aperture is closed-off when the distal portion is retracted through the bone opening.

A method for introducing a bone cement mixture into a damaged bone of a patient, the method comprising:

• mixing a first bone cement component together with a second bone cement component to form the bone cement mixture;
• containing the bone cement mixture in an injection device;
• inserting a needle into the damaged bone of the patient, the needle including a cannula and a tip portion extending therefrom, the cannula having a lumen formed therethrough and a distal portion, the distal portion having an open distal end and a side aperture formed through the distal portion, the tip portion attached to the distal portion of the cannula such that the side aperture is proximal the tip portion, the tip portion piercing the damaged bone defining a bone opening, and the distal portion being configured to tightly fit the bone opening;
• providing fluid communication between an outlet of the injection device and the lumen of the cannula;
• dispensing the bone cement mixture from the injection device by advancing the bone cement mixture through the outlet;
• and
• introducing the bone cement mixture to the damaged bone of the patient including:
• advancing the bone cement mixture through a lumen of the needle;
• directing advancement of the bone cement mixture through the side aperture while preventing advancement of the bone cement mixture through the distal end of the needle via the tip portion;
• filling the damaged bone of the patient with the bone cement mixture;
• and
• removing the needle from the damaged bone by at least one of a pulling motion and a twisting motion, wherein advancement of the bone cement mixture through the side aperture is closed-off when the distal portion is retracted through the bone opening.