Patent
System for operating a RF ablation generator
Peter Chen,Tho Hoang Nguyen +1 more
Reads0
Chats0
TLDR
In this paper, a catheter-based system for operating a RF ablation generator comprising a RF splitter for delivering RF energy to a plurality of electrodes, a low-pass filter located between the splitter and an external EKG monitor, and a software program having temperature data input from temperature sensors and signal output capability, was presented.Abstract:
A catheter-based system for operating a RF ablation generator comprising a RF splitter for delivering RF energy to a plurality of electrodes; a low-pass filter located between the RF splitter and an external EKG monitor for displaying real-time signal to said EKG monitor; and a software program having temperature data input from a plurality of temperature sensors and signal output capability, wherein the software program sends out signals to the RF splitter being adapted to control the RF energy output to each electrode.read more
Citations
More filters
Patent
Method and system for controlling output of RF medical generator
Steven Paul Buysse,Bret Felton,David N. Heard,David Keppel,Ronald J. Podhajsky,Dale Francis Schmaltz,Robert H. Wham,Edward C. Meagher,Kate Ryland Lawes,David A. Schechter,Chelsea Shields,Philip M. Tetzlaff,Jeremy S. James +12 more
TL;DR: In this article, a closed-loop control system for an electrosurgical generator that generates electrosurgery energy is described, which includes a user interface for selecting at least one pre-surgical parameter, such as the type of surgical instrument operatively connected to the generator, type of tissue and the desired surgical effect.
Patent
Vessel sealing system
TL;DR: In this article, an electrosurgical system is described, which includes an electric generator adapted to supply electrosurgery energy to tissue, as well as a microprocessor configured to determine whether a tissue reaction has occurred as a function of a minimum impedance value and a predetermined rise in impedance.
Patent
System and method for tissue sealing
TL;DR: In this paper, an electrosurgical bipolar forceps for sealing is described, which includes one or more shaft members having an end effector assembly disposed at the distal end of the forceps.
Patent
User interface for tissue ablation system
Randell L. Werneth,J. Christopher Flaherty,Oral Hakan,Fred Morady,Ricardo Roman,Marshall L. Sherman +5 more
TL;DR: In this article, the authors describe an ablation catheter that has an array of ablation elements attached to a deployable carrier assembly, which can be constrained within the lumen of a catheter and deployed to take on an expanded condition.
Patent
System and method for tissue sealing
Roberth H. Wham,Rebecca Coulson,Kari Riegner,David A. Schechter,Nicole Mckenna,Barbara R. Bastian,Jennifer S. Harper +6 more
TL;DR: In this article, an electrosurgical system is described, which includes an electromagnetic generator adapted to supply electrosurgery energy to tissue and a tissue cooling period is provided to enhance operative outcomes.
References
More filters
Patent
Device and method for multi-phase radio-frequency ablation
Jawahar M. Desai,Htay L. Nyo +1 more
TL;DR: In this article, an orthogonal electrode catheter array suitable for cardiac ablation is used in conjunction with a two-phase RF power source to produce uniform square-shaped lesions of size 1,2 cm2.
Patent
Fluid cooled ablation catheter
TL;DR: In this paper, a thin, elongate and flexible ablation catheter, suitable for delivery to an internal organ, comprises a fluid delivery lumen (26) centrally located within the catheter.
Patent
Systems and methods for forming large lesions in body tissue using curvilinear electrode elements
TL;DR: In this paper, a support body with multiple electrodes was designed to increase the density of the electrodes per given tissue area. But the support body can carry either elongated, continuous electrodes or arrays of non-contiguous, segmented electrodes.
Patent
Fluid cooled and perfused tip for a catheter
TL;DR: In this article, an ablation catheter is used to control the temperature and reduce the coagulation of biological fluids on a tip (26) of a catheter, preventing the impedance rise of tissue in contact with the catheter tip, and maximising the energy transfer to the tissue, thereby allowing an increase in the lesion size produced by the ablation.
Patent
Systems and methods for controlling tissue ablation using multiple temperature sensing elements
TL;DR: In this paper, the authors place a temperature sensing element in an edge region between an energy transmitting electrode and a non-electrically conducting support body, where higher temperatures are likely to exist.
Related Papers (5)
Electrode and associated systems using thermally insulated temperature sensing elements
Stuart D. Edwards,Roger A. Stern +1 more