Patent ID: 6645213
Filing Date: 2003-11-11
Classification: A61B,A61F

Abstract:
An assembly for injecting flowable material into bone comprisinga tubular body including an interior bore to carry a material flow, the tubular body having a longitudinal axis and including a dispensing end, an opening in the dispensing end communicating with the bore to dispense the material flow, a plunger located at least partially within the tubular body, the plunger adapted to be displaced along the longitudinal axis of the tubular body, an advancement mechanism attached to the plunger, a first advancement screw adapted to actuate the advancement mechanism to displace the plunger a first longitudinal displacement in a first direction in response to rotation of the first advancement screw in a first direction and to displace the plunger a first longitudinal displacement in a second direction in response to rotation of the first advancement screw in a second direction, and a second advancement screw adapted to actuate the advancement mechanism to displace the plunger a second longitudinal displacement in a first direction in response to rotation of the second advancement screw in a first direction and to displace the plunger a second longitudinal displacement in a second direction in response to rotation of the second advancement screw in a second direction.