For the implanting physician, the DF-4 has a single terminal pin connection that decreases chances of lead-to-port mismatch. Fewer connections and setscrews lessen complexity, and the improved terminal pin visibility is designed to encourage proper lead connection. For the patient, the streamlined design of the DF-4 Connector system eliminates the yoke and minimizes bulk. This may provide increased patient comfort, particularly for those who are concerned about body image or are small in stature, and may lessen the risk of lead-to-can abrasion.
ICD systems with DF-4 are now available from St. Jude Medical, Boston Scientific, and Medtronic (which received approval for its DF-4 connector only this week).