Devices, systems, and methods for myocardial infarct border zone reinforcement. In at least one embodiment of a suction/infusion catheter for facilitating myocardial infarct border zone reinforcement, the catheter includes one or more apertures defined along a portion of the catheter at or near a distal end of the catheter, a first configuration when the suction/infusion catheter is at least partially extended from a delivery catheter, and a second configuration when the at least one suction/infusion catheter is positioned within the delivery catheter, the second configuration different from the first configuration, wherein the suction/infusion catheter, when introduced into a pericardial space surrounding a heart at or near a myocardial infarct border zone, is operable to inject a glue-like substance through a lumen of the suction/infusion catheter and out from the one or more apertures to deliver the glue-like substance into the pericardial space at or near the myocardial infarct border zone.
