Patent ID: 8845647
Filing Date: 2014-09-30
Classification: A61B,B01F

Abstract:
1. A single-use device for mixing paste ingredients, and for dispensing and applying a mixed paste, such as bone cement, comprising: a cylinder for receiving the paste; a piston which is arranged displaceable in the cylinder; a piston rod which is displaceable and rotatable in the piston and which has an element for mixing the paste ingredients in the cylinder; locking means configured to lock the piston rod in any position along the piston rod; and means configured to interconnect the piston and the piston rod to allow displacement of the piston in the cylinder by means of the piston rod for dispensing of the mixed paste outside the cylinder; said locking means comprising at least one locking member which has an aperture for receiving the piston rod displaceable therein; wherein said locking member comprises a locking plate element having an aperture and an elastic material having an aperture the inner edge of which is at least partially in contact with the piston rod, said elastic material being configured to prevent contact between the piston rod and the inner edge of the locking plate element aperture.