1
William J Rittman III, Eric R Cosman: Cool-tip radiofrequency thermosurgery electrode system for tumor ablation. Sherwood Services, June 10, 2003: US06575969 (643 worldwide citation)

This patent application is a continuation-in-part of the patent application of the present authors related to target volume ablation in the body using a cooled-tip tissue-heating probe such as a fluid cooled (perfusion cooled) high frequency electrode. The present application relates in part to exam ...


2
Eric R Cosman: Thermometric cardiac tissue ablation electrode with ultra-sensitive temperature detection. Richard J Birch, October 30, 1990: US04966597 (599 worldwide citation)

This invention relates to the construction of a cardiac ablation electrode with a thermosensing detector at one or more positions in the distal tip. The distal tip is uninsulated in contrast to the rest of the flexible length of the electrode to enable radiofrequency (rf) potential to be applied the ...


3
Barton L Guthrie, Eric R Cosman: Operating pointer with interactive computergraphics. Radionics, Richard J Birch, July 27, 1993: US05230623 (566 worldwide citation)

This invention relates to any operating pointer or arm apparatus whose position can be detected and read out on a computer and associated graphics display, and where the pointer can be changed from its pointer function to a "3D mouse" so as to alternately by use control the functionality of the comp ...


4
Eric R Cosman: Automatic over-temperature control apparatus for a therapeutic heating device. Richard J Birch, March 13, 1990: US04907589 (565 worldwide citation)

The use of radio frequency currents to heat and destroy neurological tissues is well known in the field of neurosurgery and typically involves monitoring of the tissue temperature as it is being heated by an in-dwelling electrode. This patent deals with an apparatus and method which enables the oper ...


5
Eric R Cosman: Universal lesion and recording electrode system. Richard J Birch, January 21, 1986: US04565200 (557 worldwide citation)

A set of instruments is described which enables variability in the size and shape of the region of destructive, radio frequency heating (lesion making) of tissue within the living body, and which enables this variability with only one insertion tract into the body up to the region of the targeted ti ...


6
Menno E Sluijter, Eric R Cosman: Method and apparatus for heating an intervertebral disc for relief of back pain. Richard J Birch, July 18, 1995: US05433739 (546 worldwide citation)

The present invention relates to a technique of relieving back pain by heating of an intervertebral disc. The heating is illustrated by a percutaneous technique where a needle or electrode is inserted into the disc under X-ray or other imaging control and subsequently used to elevate the temperature ...


7
Eric R Cosman: Thermocouple radio frequency lesion electrode. Richard J Birch, October 25, 1983: US04411266 (540 worldwide citation)

A radio frequency (rf) lesion electrode design with a thermocouple temperature sensor in its distal uninsulated tip is described, having special design features which enable it to be made with very small tip diameters, flexible tip geometrics, very close proximity of the thermocouple sensor to the t ...


8
Menno E Sluijter, William J Rittman III, Eric R Cosman: Modulated high frequency tissue modification. Sherwood Services, June 12, 2001: US06246912 (463 worldwide citation)

A method and apparatus are provided for altering a function of tissue in a patient. An electromagnetic signal generated by a signal generator is applied to the tissue to be altered through an electrode. The electromagnetic signal has at least one frequency component above the physiologic stimulation ...


9
Eric R Cosman: System and method for stereotactic registration of image scan data. Darby & Darby P C, December 21, 1999: US06006126 (444 worldwide citation)

A system for computer graphic determination and display of a patient's anatomy, as from CT or MR scanning, and stored along with associated equipment in an object field including the patient's anatomy. A first digitizing camera structure produces a signal representative of its field-of-view which de ...


10
William J Rittman III, Eric R Cosman: Cool-tip electrode thermosurgery system. Sherwood Services, January 14, 2003: US06506189 (421 worldwide citation)

For heat ablating living tissue of a body, an ablation electrode, contacting a surface of the tissue or within tissue, is coupled to an RF power supply referenced to a second electrode contacting the body. Fluid coolant is circulated to cool the contact surface extending the ablation to an increased ...



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