Abstract: A medical electrical lead that includes a lead body having a lead body lumen, an electrode head assembly fixedly engaged with the lead body and having an electrode head assembly lumen communicating with the lead body lumen, and a conductor extending within the lead body lumen and the electrode head assembly lumen. An insulating member extends through the electrode head assembly lumen and the lead body lumen to electrically isolate the conductor.

Abstract: An implantable medical lead includes an adaptor coupled to a body of the lead. The adaptor holds a sensor capsule between a first portion and a second portion of the lead body.

Abstract: A medical electrical lead includes a lead body and a connector terminal. A conductor extends from the lead body to the connector terminal along a helical path through a transition zone.

Abstract: A medical electrical lead that includes a lead body having a lead body lumen, an electrode head assembly fixedly engaged with the lead body and having an electrode head assembly lumen communicating with the lead body lumen, and a conductor extending within the lead body lumen and the electrode head assembly lumen. An insulating member extends through the electrode head assembly lumen and the lead body lumen to electrically isolate the conductor.

Abstract: A medical electrical lead that includes a lead body having a lead body lumen, an electrode head assembly fixedly engaged with the lead body and having an electrode head assembly lumen communicating with the lead body lumen, and a conductor extending within the lead body lumen and the electrode head assembly lumen. An insulating member extends through the electrode head assembly lumen and the lead body lumen to electrically isolate the conductor.

Abstract: A medical electrical lead includes a lead body and a connector terminal. A conductor extends from the lead body to the connector terminal along a helical path through a transition zone.

Abstract: A medical electrical lead includes a lead body and a connector terminal. A conductor extends from the lead body to the connector terminal along a helical path through a transition zone.

Abstract: An implantable medical lead includes an adaptor coupled to a body of the lead. The adaptor holds a sensor capsule between a first portion and a second portion of the lead body.

Abstract: A medical electrical lead is provided that is readily manufactured using a minimal number of parts, has a reduced size and improved reliability during implantation and extraction. The lead includes a modular electrode head assembly that is joined to a lead body at a butt joint. The butt joint is stabilized in at least four possible ways: insulation tubing that spans the joint is bonded to the electrode head assembly; two cabled conductors extending the length of the lead body are coupled to the electrode head assembly; an electrode head alignment peg interlocks with and is bonded to the lead body; and a coil electrode is positioned across the butt joint on the outer diameter of the assembly and the lead body. The lead size is minimized by using a compact retraction stop mechanism, a low-friction, press-fit drive shaft seal, and a small diameter coiled conductor insulated by a thin-walled insulating tube.

Abstract: A medical electrical lead is provided that is readily manufactured using a minimal number of parts, has a reduced size and improved reliability during implantation and extraction. The lead includes a modular electrode head assembly that is joined to a lead body at a butt joint. The butt joint is stabilized in at least four possible ways: insulation tubing that spans the joint is bonded to the electrode head assembly; two cabled conductors extending the length of the lead body are coupled to the electrode head assembly; an electrode head alignment peg interlocks with and is bonded to the lead body; and a coil electrode is positioned across the butt joint on the outer diameter of the assembly and the lead body. The lead size is minimized by using a compact retraction stop mechanism, a low-friction, press-fit drive shaft seal, and a small diameter coiled conductor insulated by a thin-walled insulating tube.

Abstract: A medical electrical lead that includes a lead body having a lead body lumen, an electrode head assembly fixedly engaged with the lead body and having an electrode head assembly lumen communicating with the lead body lumen, and a conductor extending within the lead body lumen and the electrode head assembly lumen. An insulating member extends through the electrode head assembly lumen and the lead body lumen to electrically isolate the conductor.

Abstract: An implantable cardioversion/defibrillation lead having an elongated insulative lead body carrying a tip electrode located at its distal end and a cardioversion/defibrillation electrode located on the lead body, proximal to the tip electrode. An elongated conductor coupled to the tip electrode extends proximally within the lead body. At the proximal end of the lead body is a first connector assembly carrying a first connector and a second connector assembly carrying a second connector. An elongated, stranded or cabled conductor is coupled to the cardioversion/defibrillation electrode and to the second connector and extends uninterrupted therebetween. A cylindrical transition member is coupled to the first connector by means of a coiled conductor. A press-fit sleeve having a longitudinal lumen extending therethrough compresses the stranded or conductor between the press-fit sleeve and the transition member to provide electrical interconnection between the stranded or cabled conductor and the transition member.

Abstract: A medical electrical lead having an elongated lead body provided with an internal longitudinally extending lumen carrying an elongated stranded or cabled conductor and an electrode coil, located on said lead body. The coil is coupled to the conductor by a conductive sleeve having a tubular portion which has an internal lumen through which the conductor passes and a groove or bore which engages only a portion of a turn or turns of the electrode coil, such that the coil is oriented generally perpendicular to the internal lumen of said sleeve and to the conductor.

Abstract: An implantable electrode of the type in which an elongated wire coil forms the electrode surface. The electrode coil is mounted around an insulative lead body and is stabilized on the lead body by means of a plastic filler between the individual turns of the electrode coil, extending radially outward to approximately one-third of the diameter of the electrode coil wire. The filler is produced by stretching a portion of the lead body which normally displays an outer diameter greater than the inner diameter of the electrode coil, sliding the electrode coil over the lead body and inserting a mandral into the lead body to urge the lead body into contact with the electrode coil. This assembly is heated to encourage flow of the lead body into the spaces between the electrode coil to stabilize the coil on electrode body and to prevent fibrotic ingrowth around the electrode coil wire.

Abstract: An implantable electrode of the type in which an elongated wire coil forms the electrode surface. The electrode coil is mounted around an insulative lead body and is stabilized on the lead body by means of a plastic filler between the individual turns of the electrode coil, extending radially outwardly to approximately one-third of the diameter of the electrode coil wire. The filler is produced by stretching a portion of the lead body which normally displays an outer diameter greater than the inner diameter of the electrode coil, sliding the electrode coil over the lead body and inserting a mandrel into the lead body to urge the lead body into contact with the electrode coil. This assembly is heated to encourage flow of the lead body into the spaces between the electrode coil to stabilize the coil on electrode body and to prevent fibrotic ingrowth around the electrode coil wire.