Electrosurgery With Cellular Precision

@article{Palanker2008ElectrosurgeryWC,
  title={Electrosurgery With Cellular Precision},
  author={Daniel V. Palanker and Alexander Vankov and Philip Huie},
  journal={IEEE Transactions on Biomedical Engineering},
  year={2008},
  volume={55},
  pages={838-841}
}
Electrosurgery, one of the most-often used surgical tools, Is a robust but somewhat crude technology that has changed surprisingly little since its invention almost a century ago. Continuous radiofrequency is still used for tissue cutting, with thermal damage extending to hundreds of micrometers. In contrast, lasers developed 70 years later, have been constantly perfected, and the laser-tissue interactions explored in great detail, which has allowed tissue ablation with cellular precision in… 

Figures from this paper

On mechanisms of interaction in electrosurgery
Electrosurgery is broadly used in a wide variety of surgical procedures, yet its underlying mechanisms of interaction are poorly characterized. Fundamentals of electrosurgery have not changed much
New Journal of Physics On mechanisms of interaction in electrosurgery
Electrosurgery is broadly used in a wide variety of surgical procedures, yet its underlying mechanisms of interaction are poorly characterized. Fundamentals of electrosurgery have not changed much
Electrosurgical generators and monopolar and bipolar electrosurgery.
The cutting mechanism of the electrosurgical scalpel
Electrosurgical cutting is a well-known technique for creating incisions often used for the removal of benign and malignant tumors. The proposed mathematical model suggests that incisions are created
Energetic soft-tissue treatment technologies: an overview of procedural fundamentals and safety factors
TLDR
Some basic knowledge on used energetic treatments and settings and a proper use of terminology may enhance the practitioner's insight in allowable actions to take, improve the interpretation and diagnosis of histological and mechanical tissue changes, and decrease the probability of iatrogenic mishaps.
Comparative Healing of Surgical Incisions Created by the PEAK PlasmaBlade, Conventional Electrosurgery, and a Scalpel
TLDR
The PlasmaBlade is a promising new surgical instrument that provides atraumatic, scalpel-like cutting precision and electrosurgical-like hemostasis, resulting in minimal bleeding, tissue injury, and scar formation.
Cell electrospinning cardiac patches for tissue engineering the heart.
TLDR
The ability to immobilize primary cardiac myocytes within these fibers is shown here for the first time in the quest to develop this technology for creating three-dimensional cardiac patches which could be used for repairing, replacing and rejuvenating damaged, diseased and/or ageing cardiac tissues.
A Modified Electrosurgery Unit Based on High Frequency Design with Monopolar and Bipolar Method
TLDR
The researchers took advantage of the type of heat effect produced by high frequencies which were concentrated at one point so that it could be used to carry out the process of surgery  on body tissues so as to minimize the occurrence of large blood loss.
...
...

References

SHOWING 1-10 OF 28 REFERENCES
Nanosecond plasma-mediated electrosurgery with elongated electrodes
TLDR
Dynamics of the plasma-mediated nanosecond discharges in liquid medium in positive and negative phases are explored, which presents a problem of nonuniformity of the electric field on a nonspherical electrode.
Precision and safety of the pulsed electron avalanche knife in vitreoretinal surgery.
TLDR
The pulsed electron avalanche knife operated well within accept-able safety limits and may greatly facilitate both posterior segment surgeries and anterior segment procedures (eg, capsulotomy, nonpenetrating trabeculectomy, and iridectomy).
Electrical alternative to pulsed fiber-delivered lasers in microsurgery
An electrical system based on a tapered microelectrode has been developed for generation of high voltage sub-microsecond discharge in physiological medium. Different types of the resulting pulses of
Effects of the pulsed electron avalanche knife on retinal tissue.
TLDR
The PEAK is capable of precise cutting through retinal tissue, and there are no demonstrable retinal toxic effects from its use.
Noninvasive optoacoustic online retinal temperature determination during continuous-wave laser irradiation.
TLDR
An optoacoustic method is developed to determine the retinal temperature increase in real time during continuous-wave laser irradiation, and temperature calculations are performed to interpret the results exemplary for transpupillary thermotherapy (TTT).
Prevention of tissue damage by water jet during cavitation
Cavitation bubbles accompany explosive vaporization of water following pulsed energy deposition in liquid media. Bubbles collapsing at the tip of a surgical endoprobe produce a powerful and damaging
Electroporation dynamics in biological cells subjected to ultrafast electrical pulses: a numerical simulation study.
  • R. Joshi, K. Schoenbach
  • Physics
    Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics
  • 2000
TLDR
A model analysis of electroporation dynamics in biological cells has been carried out based on the Smoluchowski equation and it is shown that irreversible breakdown would lead to the formation of a few large pores, while a large number of smaller pores would appear in the case of reversible breakdown.
Mechanisms of pulsed laser ablation of biological tissues.
TLDR
It was found that the structure and morphology also affect the energy transport among tissue constituents and therefore the ablation efficiency of biological tissues is increased.
Concepts, considerations, and concerns on the cutting edge of radiofrequency ablation.
  • Daniel B. Brown
  • Medicine
    Journal of vascular and interventional radiology : JVIR
  • 2005
TLDR
The author reviews the status of RF ablation outside the liver and lung and compares outcomes with current clinical standards when appropriate and how differences in local tissue environments play a role in creation of a thermal lesion and achievement of subsequent clinical success.
...
...