The National Heart, Lung, and Blood Institute (NHLBI) intends to award a sole source contract for the design, fabrication, and testing of insulated-sensing intramyocardial electrosurgical guidewire pr... The National Heart, Lung, and Blood Institute (NHLBI) intends to award a sole source contract for the design, fabrication, and testing of insulated-sensing intramyocardial electrosurgical guidewire prototypes. The effort includes engineering development, bench validation, and delivery of refined prototypes for preclinical in vivo evaluation. This Notice of Intent is not a request for competitive proposals; however, interested parties may submit capability statements for consideration.