公开(公告)号：US06278897B1

公开(公告)日：2001-08-21

申请号：US09204314

申请日：1998-12-03

申请人： Jean J. G. Rutten ,  Karel Smits ,  Nicolaas Lokhoff ,  Paulus Van Venrooij

发明人： Jean J. G. Rutten ,  Karel Smits ,  Nicolaas Lokhoff ,  Paulus Van Venrooij

IPC分类号： A61N105

CPC分类号： A61N1/056 ,  A61M25/0668

摘要： A medical electrical lead and introducer system. The lead is a single pass, dual chamber lead, which features in one embodiment an atrial tine. The introducer system is particularly designed for introduction of single pass, dual chamber lead which has an atrial tine. The introducer system facilitates the introduction of a such lead into a patient's heart while safeguarding the tine from damage due to kinking during lead positioning. The lead is a single pass lead which features an atrial tine while the introducer system is particularly designed for introduction of a such lead into a patient's heart so as to safeguard the tine from damage due to kinking during lead positioning. The lead is designed so as to electrically couple both the atrium and the ventricular chambers of the heart. The lead generally features several lengths each having differing stiffness as well as a pre-formed bend. The lead also features a atrial tine having an electrode at the tip. Due to the relatively fragile as well as difficult to maneuver lead, an introducer system is also disclosed. The introducer system is particularly designed to introduce such a lead. In use a removable tubing split element surrounds the atrial tine area of the lead while it is disposed through the introducer sheath, the split element both blocks the tine from lateral movement and fills up the space between the lead body and the introducer, thereby preventing blood leakage through the introducer. The element also has a longitudinal split for receiving the atrial tine while holding it against transverse movement when the lead is being repositioned. After optimal positioning of the lead, the tubing split element is withdrawn, and then the introducer is withdrawn. The tubing split element is a generally cylindrical piece of TEFLON, here called a tube split element, or just a “tube split”, is positioned around the lead body in the atrial tine area. The tube split element has a thickness which substantially fills the radial gap between the smaller diameter lead body and the introducer inner cylindrical wall, and has a longitudinal separation, or split, which accommodates the atrial tine, thereby permitting the tine to extend longitudinally but not transversely. The tubing split element is preferably mounted on the lead at the time of lead assembly. It has a length sufficient to extend proximally out of the introducer so that it can be withdrawn, and has a longitudinal tear line whereby the element can be separated and removed from the lead after final positioning of the lead.

公开(公告)号：US5995876A

公开(公告)日：1999-11-30

申请号：US794175

申请日：1997-02-03

申请人： Ib M. Kruse ,  Nicolaas Lokhoff ,  Paulus van Venrooij ,  Arnoldus Bakels

发明人： Ib M. Kruse ,  Nicolaas Lokhoff ,  Paulus van Venrooij ,  Arnoldus Bakels

IPC分类号： A61N1/05 ,  A61N1/04

CPC分类号： A61N1/057 ,  A61N1/056 ,  A61N1/0568

摘要： The present invention is directed to a single pass medical electrical lead. In one embodiment, the lead feature a pair of bipolar electrodes positioned along the lead body so that they are positioned in the ventricle and atrium respectively when the lead is implanted. The lead body features a 90 degree bent reinforced section. The bend has a radius of curvature approximately 13 mm and begins approximately 90 mm from the distal end. This curved section is approximately 40 mm in length when straightened. The ventricular electrodes are positioned approximately 28 mm apart. The ventricular cathode electrode is positioned at the distal end of the lead. The atrial electrodes are positioned approximately between 5-35 mm apart, with 28 mm preferred. The atrial anode is located at a position immediately adjacent and proximal the 90 degree bent reinforced section.

摘要翻译： 本发明涉及单程医用电引线。 在一个实施例中，引线具有一对沿引线体定位的双极电极，使得它们在引线被植入时分别定位在心室和心室中。 引线体具有90度弯曲加强部分。 弯曲部具有大约13mm的曲率半径，并从远端开始大约90mm。 当弯曲时，该弯曲部分的长度约为40mm。 心室电极间隔约28mm。 心室阴极位于引线的远端。 心房电极位于大约5-35mm之间，优选28mm。 心房阳极位于紧邻90度弯曲加强部分的位置。