1
Paul C Nardella: Fluid cooled ablation catheter. American Cardiac Ablation Co, Lahive & Cockfield, August 2, 1994: US05334193 (926 worldwide citation)

A thin, elongate and flexible ablation catheter, suitable for delivery to an internal organ, comprises a fluid delivery lumen centrally located within the catheter, and first and second electrodes disposed on an outer surface of the catheter. The electrodes preferably are helically oriented about th ...


2
Paul C Nardella, David C Yates, Jesse J Kuhns, Richard P Nuchols, Martin Madden, Steven H Mersch: Alternative current pathways for bipolar surgical cutting tool. Medical Scientific, Ethicon Endo Surgery, William C Lahive & Cockfield Geary III, July 2, 1996: US05531744 (858 worldwide citation)

A bipolar electrosurgical tool comprises a retractable cutting element movable along a cutting path and an electrical energy supply source which communicates electrical energy (e.g., radio frequency energy) through one or more energy delivering electrodes associated with a tissue affecting portion o ...


3
Thomas A Wrublewski, Kevin M Allaire, William Frey, Kevin Lemire, Paul C Nardella Sr: Seal & cut electrosurgical instrument. Medical Scientific, Nutter McClennen & Fish, January 16, 2001: US06174309 (755 worldwide citation)

An electrosurgical instrument has a handle and a body which position and close a jaw about a tissue site for simultaneously cutting and sealing relatively large tissue structures. The jaw includes an electrosurgical cutting member, which may be a blade or wire, against which tissue is biased along a ...


4
Paul C Nardella: Fluid cooled electrosurgical probe for cutting and cauterizing tissue. American Cardiac Ablation Co, Lahive & Cockfield, January 24, 1995: US05383876 (641 worldwide citation)

An electrosurgical probe is disclosed which provides the ability to both cut and cauterize tissue. The probe includes at least one cauterization electrode mounted upon a distal portion of the electrode and adapted to deliver electrosurgical energy to tissue. Further, a central lumen is disposed with ...


5
Paul C Nardella: Impedance feedback electrosurgical system. Medical Scientific, Nutter McClennen & Fish, February 3, 1998: US05713896 (636 worldwide citation)

An impedance feedback electrosurgical system is useful with electrosurgical tools to maintain a substantially constant level of current within the tissue in contact with the tool. The system comprises active and return electrodes associated with an electrosurgical tool, an impedance monitoring devic ...


6
Paul C Nardella: Fluid cooled electrosurgical cauterization system. American Cardiac Ablation Co, Lahive & Cockfield, August 30, 1994: US05342357 (548 worldwide citation)

An electrosurgical probe is disclosed which provides the ability to both cut and cauterize tissue. The probe includes at least one cauterization electrode mounted upon a distal portion of the electrode and adapted to deliver electrosurgical energy to tissue. Further, a central lumen is disposed with ...


7
Paul C Nardella: Ablation catheter positioning system. American Cardiac Ablation Co, Lahive & Cockfield, August 30, 1994: US05341807 (530 worldwide citation)

A multi-electrode cardiac catheter has pairs of electrodes connected to sensing circuitry to produce a differential signal. The sensing output is sharply defined and self-normalizing. Preferably a catheter ablation tip electrode is an electrode of one pair, and the differential signal becomes non-ze ...


8
Paul C Nardella: Electrosurgical cutting tool. Medical Scientific, Nutter McClennen & Fish, September 9, 1997: US05665085 (484 worldwide citation)

An electrosurgical tool comprises a retractable cutting element moveable along a linear cutting path and an electrical energy supply source which communicates electrical energy (e.g., radio frequency energy) through the cutting element and to tissue adjacent the cutting element. The cutting element ...


9
Paul C Nardella: Electrosurgical cutting tool. Medical Scientific, Nutter McClennen & Fish, August 20, 2002: US06436097 (438 worldwide citation)

An electrosurgical tool comprises a retractable cutting element moveable along a linear cutting path and an electrical energy supply source which communicates electrical energy (e.g., radio frequency energy) through the cutting element and to tissue adjacent the cutting element. The cutting element ...


10
Paul C Nardella, David C Yates: Bipolar electrosurgical trocar. Medical Scientific, Ethicon Endo Surgery, William C Geary III, Lahive & Cockfield, May 23, 1995: US05417687 (400 worldwide citation)

The invention provides an electrosurgical tissue penetrating probe (e.g., a trocar) for use with surgical procedures such as a laproscopy. The trocar has a stylet disposed within the housing member, having an active electrode disposed on a distal end thereof to deliver electrosurgical energy to the ...