81
Christer Ekwall: Heart stimulator determining cardiac output, by measuring the systolic pressure, for controlling the stimulation. Pacesetter, Schiff Hardin & Waite, November 6, 2001: US06314323 (149 worldwide citation)

A heart stimulator has a circuit for determining cardiac output and for producing a control signal corresponding to the determined cardiac output, and a controller for controlling cardiac stimulation dependent on the control signal. The circuit for determining cardiac output includes a pressure sens ...


82
Jeffery D Snell, Harold C Schloss, Brian M Mann, John W Poore, Roy B Medlin: Methods for displaying a sequential series of pacing events. Pacesetter, Harold C Schloss, January 30, 1996: US05487755 (148 worldwide citation)

An implantable pacemaker continuously records pacing events and their respective rates of occurrence in sequence, as they occur, into an Event Record stored in a circular buffer. The circular buffer always contains the most recent events and rates collected. The recording of the pacing events select ...


83
Gene A Bornzin, Elia R Arambula, Joseph J Florio: System and method for automatically determining the slope of a transfer function for a rate-responsive cardiac pacemaker. Pacesetter, Lisa P Weinberg, May 7, 1996: US05514162 (147 worldwide citation)

A rate-responsive pacemaker measures a patient's level of activity and stores the results in an activity level histogram. The patient's average level of activity is maintained as a running average. Based on a prescribed base pacing rate, a prescribed maximum pacing rate, the average level of activit ...


84
Jason A Sholder: Rate-responsive pacemaker having digital motion sensor. Siemens Pacesetter, Bryant R Gold, September 20, 1988: US04771780 (145 worldwide citation)

A rate-responsive pacemaker includes a motion sensor mounted therein. The output signal from the motion sensor is a digital signal that can be connected directly to the digital processing and control circuits of the pacemaker in order to adjust its basic pacing rate as a function of the physical mot ...


85
Hong Li: Pacemaker lead with extendable retractable lockable fixing helix. Siemens Pacesetter, Malcolm J Romano, November 9, 1993: US05259395 (145 worldwide citation)

A body implantable lead including a sheath, an electrode sleeve secured at a distal end of the sheath, a rotor body positioned within the sleeve, a fixing helix secured to a distal end of the rotor body, a torsion spring secured to a proximal end of the rotor body, and a rotation guide formed betwee ...


86
Brian M Mann, Joseph J Florio, Jason A Sholder, Leslie S Miller, Jeffery D Snell, Kenneth Valikai, Gregory Bevan, J Kelly Fox, Azita M Rahbari, Allan R Schwartz: System and method for facilitating rapid retrieval and evaluation of diagnostic data stored by an implantable medical device. Pacesetter, November 10, 1998: US05833623 (145 worldwide citation)

An implantable device programmer includes a variety of features for allowing a clinician to perform an automated and customized follow-up examination of a patient having an implanted cardiac implantable device, the implantable device being of the type which captures and stores various types of diagn ...


87
Sheldon B Moberg, James D Causey III: Implantable leads incorporating cardiac wall acceleration sensors and method of fabrication. Pacesetter, Lisa P Weinberg, May 13, 1997: US05628777 (144 worldwide citation)

Implantable leads incorporating accelerometer-based cardiac wall motion sensors, and a method of fabricating such leads, are provided. The cardiac wall motion sensors transduce accelerations of cardiac tissue to provide electrical signals indicative of cardiac wall motion to an implantable cardiac s ...


88
John R Helland, Hong Li: Bipolar active fixation lead for sensing and pacing the heart. Pacesetter, Harold C Schloss, August 13, 1996: US05545201 (144 worldwide citation)

An implantable bipolar pacing lead having a bipolar active fixation electrode for use with a cardiac pacemaker. The bipolar active fixation electrode may include a pair of coaxial electrodes, separated by an intermediate insulator, formed into the shape of a helix. The bipolar electrode helix is pre ...


89
Alvin H Weinberg: Apparatus and method for mounting an activity sensor or other component within a pacemaker using a contoured hybrid lid. Pacesetter, October 7, 1997: US05674260 (142 worldwide citation)

A cardiac stimulation device contains an electronics package having a hybrid circuit structure enclosed by a contoured lid design. The contoured lid of the electronics package has a multi-level surface structure which conforms to a multi-level design of the hybrid circuit structure. Mounting the ele ...


90
Alan Vogel, Ken McNeil II: Implantable electrical device incorporating a magnetoresistive magnetic field sensor. Pacesetter, August 8, 2000: US06101417 (141 worldwide citation)

An implantable electrical device that includes a control unit and one or more leads. The leads are configured to be implanted in the chambers of the heart of a patient and the control unit is configured to be implanted in the body of the patient. The control unit induces the leads to provide therape ...