Apparatus for sensing and transmitting a pacemaker's...

Details Apparatus for sensing and transmitting a pacemaker's... Apparatus for sensing and transmitting a pacemaker's...

A - Human Necessities

61

B

379/5, 326/13.3,

A61B 5/04 (2006.01) A61B 5/00 (2006.01) A61N 1/37 (2006.01) A61N 1/372 (2006.01)

Patent

CA 1072185

ABSTRACT OF THE DISCLOSURE Apparatus is disclosed for sensing and transmitting the stimulating pulse of an implanted pacemaker over readily available, low-bandwidth transmission media to a remote receiver capable of measuring the pulse width to provide an indication of the condition of the pacemaker energy source, e.g. a battery. In particular, the sensing and transmitting apparatus detects the electrical activity, e.g. the EKG, of a patient through attached electrodes and modulates a carrier or tone of a suitable frequency to be transmitted over the low-bandwidth transmission medium to the receiver, along with a pulse signal multiplied by a selected, fixed factor dependent upon the carrier frequency of the signal and the other information to be transmitted to the receiver. Illus- tratively, a factor in the range of 30-50 is selected where it is desired to transmit the pulse width of the pacemaker stimu- lating pulse along with an EKG, to a receiver to be displayed in a manner to permit evaluation of the EKG and of the width of the stimulating pulse. Typically, the patient in which the pacemaker is implanted has a transmitter for transmitting the aforementioned data to a receiver located in the doctor's office clinic or hospital, whereby a regular check of the pacemaker's energy source may be made by the patient's doctor.

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