Bone graft injection syringe

摘要

A syringe that has a barrel with curvature is provided. The curvature enables a greater volume of bone graft materials to be housed than in a straight syringe without increasing the absolute distance from the handle of the plunger to dispensing end of the syringe. Additionally by maintaining a constant diameter, the barrel permits bone graft material to be dispersed with reduced likelihood of clogging.

主权项

1. A syringe assembly for dispensing bone graft material comprising:
a barrel having a first opening and second opening, the barrel defining a cavity and including first and second sections each with a curvature over at least ninety degrees, the first and second sections being oriented such that an upper surface of the first section engages a lower surface of the second section, wherein the curvature forms a cylindrical coil shape, and having an internal radius of about 0.3 cm to about 1 cm and a length of from about 5 cm to about 50 cm; a cylinder, the barrel being wrapped around the cylinder to retain the cylindrical coil shape; a flexible plunger, wherein said flexible plunger is sized to slide within the cavity; and a trigger mechanism associated with the plunger, wherein the trigger mechanism causes the plunger to slide a predetermined distance through the cavity so as to dispense a predetermined, fixed volume of bone graft material.