  For a given class of R-modules Q, a module M is called Q-copure Baer
injective if any map from a Q-copure left ideal of R into M can be extended to
a map from R into M. Depending on the class Q, this concept is both a
dualization and a generalization of pure Baer injectivity. We show that every
module can be embedded as Q-copure submodule of a Q-copure Baer injective
module. Certain types of rings are characterized using properties of Q-copure
Baer injective modules. For example a ring R is Q-coregular if and only if
every Q-copure Baer injective R-module is injective.
