Patent ID: 8197491

Claim:
A bone support attachment device, comprising: an injection cannula sized to hold an amount of polymer to form a single fastener; a polymer supply inlet coupled to a side of the injection cannula; a plunger having a tip disposed at a first end of the injection cannula such that when actuated, the plunger cuts off the supply inlet and subsequently expels the amount of polymer from a second end of the injection cannula upon the plunger reaching the second end of the injection cannula; a chamber sized to house a block of polymer sufficient to form a plurality of fasteners, the chamber connected to the supply inlet to sequentially provide the amount of polymer to form a single fastener from a single chamber full of polymer; and an actively regulated heater configured to maintain a consistent temperature profile from the first end of the cannula to the second end of the cannula,wherein the temperature profile comprises a temperature gradient from the first end of the injection cannula to the second end of the injection cannula and wherein the temperature gradient is warmer at the first end of the injection cannula than at the second end of the injection cannula.