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Leads, Implantable Cardiac Pacemaker, Endocardial

Definition : Leads designed to conduct electrical pacing signals from the pulse-generating unit of an implantable cardiac pacemaker to electrodes placed on the internal lining of the heart/heart structures (i.e., endocardial or transvenous leads) and then conduct the bioelectric cardiac signals back to the unit. These leads typically consist of flexible wires that are completely isolated except at the electrode tip that makes contact with the heart. The leads are positioned in the right atrium or right ventricle through the vascular system (e.g., subclavian vein, superior vena cava). They may be fixed using barbs or screw-type terminals (i.e., active fixation) or through flanges or tinned tips (passive fixation). The other ends of the leads are attached through a connector to the pulse generator that is usually implanted in a surgical pocket in the upper chest near the collarbone. Implantable cardiac pacemaker endocardial lead configurations may be unipolar, with one active electrode contact on the heart or bipolar, with two active contacts. Lead size, connector type, and other characteristics of the leads must be compatible with the pulse generator used.

Entry Terms : "Electrodes, Intracardiac" , "Pacemaker Leads, Endocardial" , "Electrodes, Endocardial" , "Leads, Pacemaker, Transvenous" , "Endocardial Implantable Cardiac Pacemaker Leads" , "Leads, Cardiac Pacemaker, Transvenous" , "Leads, Pacemaker, Implantable, Endocardial"

UMDC code : 12900

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Boston Scientific Corp

Company Type: Parent

In 1969, fascinated by the possibility of bringing pioneering medical devices and treatments to patients across the world, John Abele joined Medi-Tech, a company that was developing alternatives to traditional surgery. Pete Nicholas was looking for an investment, and when he met John, the pieces came together.

Medtronic Inc

Company Type: Parent

At Medtronic, we're changing the face of chronic disease. By working closely with physicians around the world, we create therapies to help patients do things they never thought possible.

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