摘要:
A system for delivering a medical electrical lead within a coronary venous system that includes an introducer kit for establishing venous access to the coronary venous system and a plurality of delivery sheaths, each corresponding to a desired approach to a coronary sinus of the coronary venous system and insertable within the coronary venous system through the navigation pathway. A hemostasis valve is coupled to a delivery sheath of the plurality of delivery sheaths, and a guide wire is inserted within the lead lumen, guiding delivery of the distal tip of the medical electrical lead to a target site within the coronary venous system through the hemostasis valve and the delivery sheath. Subsequent to the distal tip being delivered to the target sight, the hemostasis valve is advanced over the connector of the medical electrical lead to remove the hemostasis valve from the medical electrical lead.
摘要:
ABSTRACT A loading device for loading a guide wire within a medical electrical lead that includes a navigation portion, having an outer portion, and extending from a front end to a back end, and having an opening formed at the back end. An engagement cavity receives and properly orientates the lead distal tip to align the lumen of the lead with the opening of the navigation portion during the loading of the guide wire within the lead. A first side wall is spaced from a second side wall to form a slot extending along the outer portion from the front end to the back end of the navigation portion, and the guide wire is advanced through the slot as the lead having the guide wire loaded therein is removed from the loading device.
摘要:
A lead connector arrangement includes a non-cylindrically shaped connector pin coupled to a lead conductor and a connector sleeve assembly for receiving the non-cylindrically shaped connector pin. The connector sleeve assembly includes an insert with an axial bore formed therein that complements the shape of the non-cylindrical connector pin. According to one embodiment, the non-cylindrical connector pin may be provided in the form of a triangular, square, rectangular, or hexagonal shape. The axial bore has a complimentary shape to receive the connector pin. When the connector pin is threaded through the connector sleeve assembly using a pull-wire device, the pull-wire device may be unscrewed from the connector pin without causing axial rotation of the lead conductor when the connector pin is fully inserted within the axial bore.
摘要:
A cardiac pacing lead. The lead has an elongated insulative lead body (10) having a distal section formed into a curved configuration (26) appropriate for use in a coronary sinus/cardiac vein of a patient's heart. An active fixation device (22) is located proximal to the distal, curved section (26) of the lead body, which carries an electrode (24), located along the distal portion of the lead body, spaced from the active fixation device a distance appropriate to locate the electrode (24) adjacent the left atrium or left ventricle of a human heart when the fixation device is located adjacent the ostium of the coronary sinus. The lead is used by advancing the distal portion of the lead through the coronary ostium of the patient's heart and into the coronary sinus/cardiac vein and thereafter employing the active fixation device (22) to affix the lead to the patient's heart outside of the coronary sinus/cardiac vein.