1
Steven A Daniel, Daniel J Balbierz, Robert D Russell, Robert Pearson, Andres Tamayo, Takehito Jimbo, Karen Frischmeyer: Bone-treatment instrument and method. Rita Medical Systems, Jacqueline F Mahoney, Peter J Dehlinger, Perkins Coie, September 23, 2003: US06622731 (453 worldwide citation)

Ablation devices and associated methods are provided for use in palliative treatment of a bone tumor on or in a compact bone region. The bone treatment devices include an elongate probe having a distal end. A proximal end of the probe supports placement in a location at or adjacent to the bone tumor ...


2
Edward J Gough, Alan A Stein: Multiple antenna ablation apparatus and method. Rita Medical Systems, Wilson Sonsini Goodrich & Rosati, September 30, 1997: US05672174 (431 worldwide citation)

An ablation treatment apparatus has a multiple antenna device. The multiple antenna device includes a primary antenna with a lumen, a longitudinal axis and an ablative surface area of length L.sub.1. The multiple antenna device also includes a secondary antenna that is positioned in the primary ante ...


3
Theodore C Johnson, Daniel J Balbierz, Robert Pearson: Method for detecting and treating tumors using localized impedance measurement. Rita Medical Systems, Jacqueline F Mahoney, Peter J Dehlinger, Perkins Coie, November 8, 2005: US06962587 (349 worldwide citation)

An embodiment of the invention provides a method for detecting and treating a tumor using tissue localized volumetric impedance measurement. The method includes providing an impedance measurement apparatus having a plurality of resilient members deployable with curvature and configured to sample tis ...


4
Rob Pearson, Steve A Daniel, Daniel J Balbierz, Kee S Lee, Jessica Liang, Martha Getaneh: Tissue ablation apparatus and method. Rita Medical Systems, Jacqueline F Mahoney, Peter J Dehlinger, Perkins Coie, January 9, 2007: US07160296 (312 worldwide citation)

A tissue-ablation method and apparatus are disclosed. The apparatus includes a plurality of RF ablation electrodes, and a plurality of sensor elements, each movable from retracted to deployed positions in a tissue to be ablated. A control device in the apparatus is operatively connected to the elect ...


5
Edward J Gough, Alan A Stein: Multiple antenna ablation apparatus and method with cooling element. Rita Medical Systems, Wilson Sonsini Goodrich & Rosati, September 22, 1998: US05810804 (271 worldwide citation)

An ablation apparatus includes a handpiece, an electrode extending from a handpiece distal end, a probe, a thermal sensor and an energy source. The electrode includes a distal end and a lumen, a cooling medium inlet conduit and a cooling medium exit conduit. Both conduits extend through the electrod ...


6
Edward J Gough, Alan A Stein, Stuart D Edwards, Patrick J Burns: Multiple antenna ablation apparatus with expanded electrodes. Rita Medical Systems, Wilson Sonsini Goodrich & Rosati, September 1, 1998: US05800484 (210 worldwide citation)

An ablation apparatus has an introducer including an introducer lumen, a proximal portion and a distal portion. A handpiece with a proximal portion and a distal portion is coupled to the introducer proximal portion. Two or more electrodes are at least partially positioned in the introducer lumen. Ea ...


7
Stuart D Edwards, Ronald G Lax, Hugh Sharkey: Multiple electrode ablation apparatus. Rita Medical Systems, Wilson Sonsini Goodrich & Rosati, June 6, 2000: US06071280 (192 worldwide citation)

A tissue ablation apparatus includes a delivery catheter with distal and proximal ends. A handle is attached to the proximal end of the delivery catheter. At least partially positioned in the delivery catheter is an electrode deployment device. The electrode deployment devices includes a plurality o ...


8
Stuart D Edwards, James Baker, Hugh Sharkey, Ronald G Lax: Cell necrosis apparatus. Rita Medical Systems, Jacqueline F Mahoney, Peter J Dehlinger, Perkins Coie, May 27, 2003: US06569159 (184 worldwide citation)

A cell necrosis apparatus comprises an elongated delivery device including a lumen and an energy delivery device. The energy delivery device includes at least a first and a second RF electrode each with a tissue piercing distal portion. The first and second RF electrodes are positionable in the elon ...


9
John Zepeda, Chaya Hirsch, Kee Lee, Edward J Gough: Multiple electrode ablation apparatus and method. Rita Medical Systems, Wilson Sonsini Goodrich & Rosati, July 18, 2000: US06090105 (175 worldwide citation)

An ablation apparatus includes an introducer with a distal end sufficiently sharp to penetrate tissue. An energy delivery device is configured to be coupled to an energy source. The energy delivery device includes a first electrode and a second electrode each with a tissue piercing distal portion. T ...


10
Edward J Gough, Alan A Stein: Multiple antenna ablation apparatus and method. Rita Medical Systems, Wilson Sonsini Goodrich & Rosati, September 14, 1999: US05951547 (167 worldwide citation)

An ablation treatment apparatus includes an energy source. A multiple antenna device is included and has a primary antenna with a longitudinal axis, a central lumen and a distal end, and a secondary antenna with a distal end. The secondary antenna is positionable in the primary antenna after the pri ...