Abstract: Dual chamber fluid containers are presented including: a container assembly including: an outer sleeve having an open sleeve end and a closed sleeve end; a pair of facing chambers encompassed by the outer sleeve, where the pair of facing chambers each define a volumetric portion; and a weld ring for positioning the outer sleeve and the pair of facing chambers to define a continuous void around the pair of facing chambers; and a lid assembly including: a collar for removably coupling with the container assembly and shaped to conform with the weld ring; a handle coupled with the collar; and a pair of hinged doors hingedly coupled with the collar along a curved portion of the collar.

Abstract: A bone fixation assembly includes a side plate for mounting on a bone and a barrel for receiving a portion of a lag screw, and configured to be inserted into a hole in the side plate. A mechanical spring located at the upper portion of the barrel biases a first detent portion toward a locking position with a second detent portion located on the side plate such that rotation of the barrel within the hole from a first position to a second position causes a compressing portion on the detent portion to contact a compressing portion on the second detent portion thereby compressing the mechanical spring so as to allow the barrel to be rotated to a third position wherein the mechanical spring is allowed to bias the first detent portion into the locking position such that a retaining portion of the first detent is adjacent to a retaining portion of the second detent and rotation of the barrel with respect to the side plate is restricted.