A cradle apparatus for myocardial repair and treatment includes a cradle having a base end and an open end. A lumen extends to a location which is at or near the cradle's base end. A plurality of spring arms are mounted to the lumen and attached to the open end of the cradle. The spring arms are biased to apply an opening force to the open end of the cradle such that the cradle apparatus can be compacted into a percutaneous or transarterial introducer and then expanded upon emergence from the introducer to engage a ventricular wall of a heart. The cradle is adapted to apply a myocardial repair or treatment material, such as myocyte cells, medicines and like, to a dysfunctional myocardium. A balloon cradle apparatus is also disclosed for myocardial treatment via an endocardial approach.