1
Israel W P Obel, Ivan Bourgeois: Implantable electrical nerve stimulator/pacemaker with ischemia for decreasing cardiac workload. Medtronic, John A Rissman, Harold R Patton, April 6, 1993: US05199428 (764 worldwide citation)

A method and apparatus for stimulating the right and/or left carotid sinus nerves or the right stellate ganglion or the epidural space at about T.sub.2 with continuous and/or phasic electrical pulses in response to detected myocardial ischemia to decrease cardiac workload as a method to protect the ...


2
Peter J Schwartz: Implantable electrical vagal stimulation for prevention or interruption of life threatening arrhythmias. Medtronic, Harold R Patton, John A Rissman, July 19, 1994: US05330507 (515 worldwide citation)

A method and apparatus for stimulating the right or left vagus nerve with continuous and/or phasic electrical pulses, the latter in a specific relationship with the R-wave of the patient's electrogram. The automatic detection of the need for vagal stimulation is responsive to increases in the heart ...


3
Hermann D Funke: Acoustic body bus medical device communication system. Medtronic, John A Rissman, Harold R Patton, May 19, 1992: US05113859 (405 worldwide citation)

A system intended for being at least partly implanted into a living body and comprising at least two modules or devices which are interconnected by a communication transmission channel, at least one of said modules being provided with transmitting and receiving means for a bidirectional exchange of ...


4
Paul B Wyborny, Glenn M Roline, Lucy M Nichols, David L Thompson: Telemetry format for implanted medical device. Medtronic, John A Rissman, Harold R Patton, July 7, 1992: US05127404 (341 worldwide citation)

A method and apparatus are disclosed for telemetering both analog and digital data from an implantable medical device to an external receiver, such as between an implanted cardiac pacer and its external programming equipment. Analog data is first converted to digital format by an analog-to-digital c ...


5
Walter H Olson: Dual chamber rate responsive pacemaker with automatic mode switching. Medtronic, Harold R Patton, John A Rissman, Greg P Gadson, September 8, 1992: US05144949 (194 worldwide citation)

A dual chamber rate responsive pacemaker with automatic mode switching between the DDD mode, the VVIR mode, and the DDIR mode, based on the difference between the average sensor rate and the average atrial rate. The primary pacing mode of operation is DDD, unless that mode is contraindicated by too ...


6
Tommy D Bennett, Lucy M Nichols: Rate responsive pacemaker and methods for optimizing its operation. Medtronic, John A Rissman, Harold R Patton, October 27, 1992: US05158078 (188 worldwide citation)

A rate responsive cardiac pacemaker for providing an optimized pacing rate of stimulation pulses as a function of at least one selected rate control parameter. Each rate control parameter has a value which varies as a function of changes in a patient's physiologic demand an includes a sensor system ...


7
Gust H Bardy, Norbert H Cannon, Arnold W Thornton, Terrell W Williams: Removable endocardial lead. Medtronic, John A Rissman, Harold R Patton, August 3, 1993: US05231996 (182 worldwide citation)

In a coiled wire medical lead structure, such as a transvenous, endocardial cardiac pacemaker and/or cardioverter/defibrillator lead, an improved mechanical structure for strengthening the lead to enable its intact removal by traction after a period of chronic implant, one or more normally relaxed, ...


8
Larry A McNichols, Gary A Lattin: Method and apparatus for pulsed iontophoretic drug delivery. Medtronic, John A Rissman, Daniel W Latham, September 10, 1991: US05047007 (120 worldwide citation)

A method and apparatus are disclose for transdermal iontophoretic delivery of ionic species, such as a drug in ionic form, in which therapeutic, electrical pulses having controlled, distinctive, dual-segment waveform characteristics are applied which facilitate more efficient drug administration thr ...


9
John Grevious: Closed loop transmitter for medical implant. Harold R Patton, John A Rissman, John L Rooney, June 2, 1992: US05117825 (119 worldwide citation)

A technique for improving the radio frequency coupling between an external programming device and a medical device implanted within a patient. The radio frequency coupling is typically used to non-invasively change the operating parameters of the implanted device, such as a cardiac pacer. A common f ...


10
David A Wayne, Tho Huyhn, Jeff Ireland: Battery impedance measurement apparatus. Medtronic, Harold R Patton, John A Rissman, John L Rooney, August 11, 1992: US05137020 (105 worldwide citation)

A battery impedance measurement apparatus for battery powered implantable medical apparatus in which current source means and reference impedance means are selectively connected across the battery after it has been isolated from the medical apparatus, and the resulting currents of interest are digit ...