1
Jerome Jackson, Roger A Stern: Systems for identifying catheters and monitoring their use. EP Technologies, Ryan Kees & Hohenfeldt, January 24, 1995: US05383874 (601 worldwide citation)

A catheter carries a functional component, like an ablating electrode, having a predetermined operating characteristic. The catheter also electronically retains an identification code that uniquely identifies the predetermined operating characteristic. The catheter is capable of transmitting the ide ...


2
Roger A Stern, Stuart D Edwards, Jerome Jackson, Arye Rosen: Articulated unidirectional microwave antenna systems for cardiac ablation. EP Technologies, Ryan Kees & Hohenfeldt, May 24, 1994: US05314466 (468 worldwide citation)

An improved assembly for steering and orienting a functional element at the distal end of a catheter tube holds the functional element with its major axis aligned with the axis of the catheter tube for convenient steering to a tissue site. The mechanism can also pivot the functional element in respo ...


3
Stuart D Edwards, Jerome Jackson: Cardiac probe with dynamic support for maintaining constant surface contact during heart systole and diastole. EP Technologies, Ryan Kees & Hohenfeldt, March 15, 1994: US05293869 (457 worldwide citation)

A cardiac probe employs a dynamic mounting element that supports one or more electrodes at its distal end in relatively constant surface contact against the expanding and contact endocardial surface.


4
Russell A Houser, Stuart D Edwards, Thomas F Kordis: Catheters and methods for performing cardiac diagnosis and treatment. EP Technologies, Ryan Kees & Hohenfeldt, May 24, 1994: US05313943 (447 worldwide citation)

A system and method for cardiac diagnosis and treatment inserts the distal end of a catheter into a heart chamber. The distal end of the catheter supports at least one electrode. The catheter has a fluid flow conduit extending through it. The conduit has a valve that prevents fluid flow from the hea ...


5
Roger A Stern, Stuart D Edwards, Jerome Jackson: Articulated systems for cardiac ablation. EP Technologies, Ryan Kees & Hohenfeldt, November 29, 1994: US05368592 (385 worldwide citation)

An improved assembly for steering and orienting a functional element at the distal end of a catheter tube holds the functional element with its major axis aligned with the axis of the catheter tube for convenient steering to a tissue site. The mechanism can also pivot the functional element in respo ...


6
Edwin Langberg: Method of radiofrequency ablation. Sensor Electronics, Ryan Kees & Hohenfeldt, September 21, 1993: US05246438 (348 worldwide citation)

A cardiac ablation apparatus including a solenoidal antenna, monitoring electrodes, and a coupling network at a distal end of a catheter transmission line, and another coupling network at the proximal end of the catheter transmission line to connect the catheter to the source of radiofrequency (RF) ...


7
Edwin Langberg: Radiofrequency ablation catheter. Sensor Electronics, Ryan Kees & Hohenfeldt, December 6, 1994: US05370644 (337 worldwide citation)

A cardiac ablation apparatus including a solenoidal antenna, monitoring electrodes, and a coupling network at a distal end of a catheter transmission line, and another coupling network at the proximal end of the catheter transmission line to connect the catheter to the source of radiofrequency (RF) ...


8
Stuart D Edwards, Roger A Stern: Systems and methods for radiofrequency ablation with phase sensitive power detection. EP Technologies, Ryan Kees & Hohenfeldt, June 13, 1995: US05423808 (335 worldwide citation)

Systems for ablating tissue control radiofrequency power to an ablation electrode by relying upon actual phase sensitive power measurements, unaffected by phase shifts between radiofrequency voltage and current. The systems also detect these phase differences, if they develop, and integrate this fac ...


9
Stuart D Edwards, Michael R Franz, Russel B Thompson, Roger A Stern: Combination monophasic action potential/ablation catheter and high-performance filter system. EP Technologies, Ryan Kees & Hohenfeldt, March 21, 1995: US05398683 (334 worldwide citation)

A combination catheter for both detecting monophasic action potentials and ablating surface tissue in an in vivo heart of a patient is provided. The apparatus includes a catheter probe having a terminal tip portion and an electrode carried on the tip such that a portion of the tip electrode is expos ...


10


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