Methods and devices for securing epicardial devices

A method of securing an implantable medical device on an epicardial surface, the method comprising:

• passing a sheath into a pericardial space of a patient through a first percutaneous access site;
• passing a guidewire comprising a first end and a second end through the sheath into the pericardial space of the patient;
• passing the guidewire through a transverse sinus of the patient;
• passing a snare device into the pericardial space through a second percutaneous access site;
• capturing a free end portion of the guidewire using the snare device;
• threading the implantable medical device over the guidewire to be positioned near the epicardial surface;
• and
• securing the first end and the second end of the guidewire to a hole, a slot, or a notch defined by a cap configured to abut an apex of a heart of the patient such that the guidewire forms a loop that begins and ends at the cap,
• wherein the guidewire comprises one or more denuded portions that are configured to function as one or more electrodes, and
• wherein the implantable medical device comprises a defibrillator coil.