Medical device with angled header and delivery system

A method comprising:

• advancing a medical device system within a patient, the medical device system comprising a catheter extending to a distal end, the catheter having a cup at the distal end of the catheter, the cup having a distal cup end, the cup end defined by a cup end plane and a cup longitudinal axis, wherein the cup end plane is disposed at a cup angle relative to the cup longitudinal axis, an implantable medical device (IMD) disposed within the cup, the IMD comprising a housing having a header, the header having one or more electrodes, the housing defined in part by a longitudinal axis, the header is defined by a header plane, the header plane disposed at an angle relative to a reference plane, where the reference plane is perpendicular to the longitudinal axis, the IMD comprising one or more electrodes configured to be advanced into heart tissue of a patient, wherein the one or more electrodes are configured to deliver cardiac pacing to the heart tissue;
• delivering the IMD to an implant site with the catheter and placing the cup end plane on the tissue where the cup longitudinal axis is non-orthogonal relative to a tissue plane;
• advancing the IMD from the cup;
• and
• engaging the one or more electrodes with the tissue.