A - Human Necessities – 61 – N
Patent
A - Human Necessities
61
N
A61N 1/362 (2006.01) A61N 1/08 (2006.01) A61N 1/37 (2006.01) A61N 1/372 (2006.01)
Patent
CA 2133674
A pacemaker including a marker code generator generating marker codes between an indifferent electrode disposed on the pacemaker housing and the pacemaker can serving as a reference electrode. Marker code signals are generated proximate the pacemaker rather than proximate cardiac tissue, and thus can be generated at a large potential for sensing by surface EKG, and can also be generated simultaneously while pacing the heart and not necessarily in the refractory period. The pacemaker facilitates the interpretation of surface EKG, and can be sensed and recorded by commercially available two-channel holter monitors which can be taken home with the patient. Thus, marker code signals can be sensed and recorded while at home and played back for the physician at a later time for analysis. The marker code generator can be selectively turned on by the external programmer such that battery life depreciation is not appreciable. The pacemaker can be adapted with either a unipolar or bipolar endocardial lead.
Hartley Jesse W.
Heemels Jan Pieter
Spinelli Julio C.
Cardiac Pacemakers Inc.
Ridout & Maybee Llp
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