1
James D Causey III, Harold C Schloss, Jeffery D Snell: Interactive programming and diagnostic system for use with implantable pacemaker. Siemens Pacesetter, Bryant R Gold, Leslie S Miller, March 7, 1989: US04809697 (559 worldwide citation)

An analyzer-programmer system (30) for use with an implantable medical device, such as a cardiac pacemaker (20). The system facilitates non-invasive communications with the implantable device and makes analysis of the operation of the implantable device easier to understand and perform. The system i ...


2
Stephen R Duggan: Adaptable, digital computer controlled cardiac pacemaker. Medtronic, Neuman Williams Anderson & Olson, September 25, 1990: US04958632 (369 worldwide citation)

A multi-mode, adaptable, implantable pacemaker is described including a microprocessor and memory programmed or capable of being programmed with a variety of processes for stimulating the patient's heart and/or for sensing and transmitting to a device external of the patient's body, various conditio ...


3
John G Keimel, Joseph A Ballis, Glenn M Roline: Apparatus for monitoring electrical physiologic signals. Medtronic, Reed A Duthler, Harold R Patton, June 2, 1992: US05117824 (365 worldwide citation)

An implantable cardiac pacemaker and/or cardioverter/defibrillator employing an R-wave detector which atuomatically adjusts its sensing threshold in response to R-wave amplitude. The R-wave detector produces an output which is used to indicate the occurrence of ventricular contractions, and is used ...


4
Joshua E Tsitlik, Howard Levin, Henry Halperin, Myron Weisfeldt: ECG amplifier and cardiac pacemaker for use during magnetic resonance imaging. The Johns Hopkins University, Howard W Califano, June 8, 1993: US05217010 (349 worldwide citation)

A device for monitoring a patient or pacing a patient is disclosed which can safely operate in a MRI system. The device uses unique RF filtering and shielding to attenuate voltages on the leads resulting from the high frequency RF signals produced in the MRI. The device is uniquely shielded to preve ...


5
Louis E Halperin, Keith A Miesel, Keith A Ufford, James R Svensk, Timothy Patrick, Beth A Hassler, Anthony J Varrichio: Implantable capacitive absolute pressure and temperature sensor. Medtronic, October 15, 1996: US05564434 (336 worldwide citation)

An endocardial lead for implantation in a right heart chamber for responding to blood pressure and temperature and providing modulated pressure and temperature related signals to an implanted or external hemodynamic monitor and/or cardiac pacemaker or pacemaker/cardioverter/defibrillator. The lead h ...


6
Gene A Bornzin, Elia R Arambula, Joseph J Florio: System and method for modulating the base rate during sleep for a rate-responsive cardiac pacemaker. Pacesetter, Lisa P Weinberg, December 19, 1995: US05476483 (323 worldwide citation)

A system and method are provided for modulating the base rate of a transfer function for a rate-responsive cardiac pacemaker. Activity sensor measurements are used to derive activity variance measurements, which in turn are used to modulate the base pacing rate. In one embodiment, a histogram is use ...


7
Tadashi Fujii, Shinji Ishida: Cardiac pacemaker using wireless transmission. Terumo Kabushiki Kaisha, Burns Doane Swecker & Mathis, May 2, 1995: US05411535 (279 worldwide citation)

A cardiac pacemaker improved to reduce the weight and size and to unburden the wearer of the pacemaker, while ensuring safe transmission of signals. The cardiac pacemaker includes a cardiac pacemaker main body 100 having at least two electrodes for detecting cardio-information, a control section for ...


8
Richard L Brendel, Robert A Stevenson: Internally grounded feedthrough filter capacitor. Maxwell Energy Products, Kelly Bauersfeld Lowry & Kelley, May 18, 1999: US05905627 (277 worldwide citation)

An internally grounded ceramic feedthrough filter capacitor assembly provides for the shielding and decoupling of a conductive terminal pin or lead of the type used, for example, in an implantable medical device such as a cardiac pacemaker or cardioverter defibrillator against passage of external in ...


9
Brian P Brockway, Robert D Dreher, Daniel E Huntwork, Brock S Lindstedt, Douglas C Morrison, Perry A Mills: Programmable multi-mode cardiac pacemaker. Cardiac Pacemakers, Orrin M Haugen, Thomas J Nikolai, Douglas L Tschida, January 7, 1986: US04562841 (269 worldwide citation)

A programmable cardiac pacemaker that is selectively programmable via a radio frequency communications link into one of a plurality of a single and dual chamber pacing modes. Depending upon the mode selected, an associated plurality of pacing parameters may be programmed, each within a predetermined ...


10
Terrence R Hudrlik: Multiple frequency impedance measurement system. Medtronic, Reed A Duthler, Harold R Patton, February 1, 1994: US05282840 (268 worldwide citation)

A physiological monitoring system for monitoring the condition of a patient's body tissue. The device includes electrodes for contacting the tissue to be monitored, circuitry for generating electrical signals at at least two frequencies for application to the tissue and circuitry for monitoring the ...