Patent ID: 9144446
Filing Date: 2015-09-29
Classification: A61B,A61F,B01F

Abstract:
1. A bone filler mixing and delivery device, comprising: a mixing section adapted to mix components to form bone filler; a syringe barrel coupled to the mixing section and including an opening through which the bone filler can be dispensed; a controllable portal to open a flow path between the mixing section and the syringe barrel; and a plunger assembly that is adapted to extend telescopically in an axial direction through the syringe barrel to dispense the bone filler through the opening, wherein the plunger assembly comprises a plunger shaft comprising a longitudinal slot and a support sleeve positioned over the plunger shaft, a pin member extends radially through at least one hole in the support sleeve toward the plunger shaft and engages the longitudinal slot, wherein when the plunger shaft moves in a first direction, the pin member translates along the longitudinal slot and drags the support sleeve in the same direction, wherein the pin member is in contact with a rear end of the longitudinal slot formed in the outer surface of the plunger shaft.