Patent ID: 7674240
Filing Date: 2010-03-09
Classification: A61B,A61M

Abstract:
1. An apparatus comprising: a releasable latch positioning a proximal housing relative to a distal housing, the distal housing coupled to a syringe tube and the proximal housing coupled to a plunger, the plunger disposed within the syringe tube; a screw mechanism coupling at least one of the syringe tube to the distal housing and the plunger to the proximal housing, to move the plunger along a length of the syringe tube; wherein the latch defines a first latched position to removably lock the latch to locate the plunger at a first location along the length and a second latched position to removably lock the latch to locate the plunger at a different second location along the length proximal to the first location, the releasable latch further comprising: a cowling attached to the distal housing, the cowling comprising: