Patent ID: 8246629

Claim:
A delivery device for a monomer, comprising: a container having a delivery duct at a distal end and an opening at a proximal end; at least one ampoule containing the monomer disposed within the container, the at least one ampoule having a proximal end and a distal end; a rod having a proximal end that extends through the opening in the container and a distal end disposed within the container, wherein the rod is not rotatable relative to the at least one ampoule; at least one spike connected to the distal end of the rod, the at least one spike disposed between the delivery duct and the distal end of the at least one ampoule; and a knob threadably engaged with the proximal end of the rod, the knob being rotatable relative to the rod from a first position, whereat the piercing end of the at least one spike is spaced apart from the at least one ampoule, to a second position, whereat the piercing end of the at least one spike penetrates the at least one ampoule.