Woo Woo Woo, you know it.
This is a good thing for anyone who sells surgical devices. We've all been in cases with surgeons who didn't know what they were doing, and a guilty verdict would have opened a "pandora's box" of possible litigation against device manufacturers. I still think ISI is gonna get taken down a notch or two for any number of questionable business practices, but I'm glad this one turned out the way it did.
^^^^^ you are so dumb. You are very very dumb.
Taylor vs. Intuitive was a bad case. They didn't correctly argue that the robot was and still is faulty. Please see below: Note the date of the study. Also check out their patent that was filed. It too says that this robot will burn you uncontrollably. Intuitive knew this from day one!
Journal of Endourology
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Stray Electrical Currents in Laparoscopic Instruments Used in da Vinci® Robot-Assisted Surgery: An In Vitro Study
To cite this article:
Carlos E. Mendez-Probst, George Vilos, Andrew Fuller, Alfonso Fernandez, Paul Borg, David Galloway, and Stephen E. Pautler. Journal of Endourology. September 2011, 25(9): 1513-1517. doi:10.1089/end.2010.0706.
Published in Volume: 25 Issue 9: September 8, 2011
Online Ahead of Print: August 4, 2011
•Full Text HTML
•Full Text PDF (127.7 KB)
•Full Text PDF with Links (118.8 KB)
Author information
Carlos E. Mendez-Probst, M.D.,1 George Vilos, M.D., FRCSC,2 Andrew Fuller, MBBS,1 Alfonso Fernandez, M.D.,1 Paul Borg, C.Tech.,3 David Galloway, C.E.T.,3 and Stephen E. Pautler, B.Sc., M.D., FRCSC1,4
1Division of Urology, Department of Surgery, The University of Western Ontario, London, Ontario, Canada.
2Department of Obstetrics and Gynaecology, Schulich School of Medicine & Dentistry, The University of Western Ontario, London, Ontario, Canada.
3Department of Biomedical Engineering, St Joseph's Hospital, London, Ontario, Canada.
4Division of Surgical Oncology, Department of Oncology, Schulich School of Medicine & Dentistry, The University of Western Ontario, London, Ontario, Canada.
Address correspondence to:
Dr. Stephen E. Pautler
Division of Urology
St Joseph's Hospital
268 Grosvenor Street
London, Ontario, N6A 4V2
Canada
E-mail: Stephen.Pautler@sjhc.london.on.ca
ABSTRACT
Background and Purpose: The da Vinci® surgical system requires the use of electrosurgical instruments. The re-use of such instruments creates the potential for stray electrical currents from capacitive coupling and/or insulation failure. We used objective measures to report the prevalence and magnitude of such stray currents.
Materials and Methods: Thirty-seven robotic instruments were tested using an electrosurgical unit (ESU) at pure coagulation and cut waveforms at four different settings. Conductive gel-coated instruments were tested at 40W, 80W, and maximum ESU output (coagulation 120W, cut 300W). The magnitude of stray currents was measured by an electrosurgical analyzer.
Results: At coagulation waveform in open air, 86% of instruments leaked a mean of 0.4W. In the presence of gel-coated instruments, stray currents were detected in all instruments with means (and standard deviation) of 3.4W (±2), 4.1W (±2.3), and 4.1W (±2.3) at 40W, 80W, and 120W, respectively. At cut waveform in open air, none of the instruments leaked current, while gel-coated instruments leaked a mean of 2.2W (±1.3), 2.2W (±1.9) and 3.2W (±1.9) at 40W, 80W, and 300W, respectively.
Conclusions: All tested instruments in our study demonstrated energy leakage. Stray currents were higher during coagulation (high voltage) waveforms, and the magnitude was not always proportionate to the ESU settings. Stray currents have the potential to cause electrical burns. We support the programmed end of life of da Vinci instruments on the basis of safety. Consideration should be given to alternate energy sources or the adoption of active electrode monitoring technology to all monopolar instruments.
This paper was cited by:
A Prospective Analysis of Robotic Tip Cover Accessory Failure
Steven R. Engebretsen, Gene O. Huang, Caroline L. Wallner, Kirk M. Anderson, Amy E. Schlaifer, Don C. Arnold Ii, Gaudencio Olgin, D. Duane Baldwin
Journal of Endourology. 2013 Online Ahead of Print
Abstract | Full Text PDF or HTML | Reprints | Permissions
Electrosurgical Generators and Monopolar and Bipolar Electrosurgery
George A. Vilos, Chandrew Rajakumar
Journal of Minimally Invasive Gynecology. May 2013, Vol. 20, No. 3: 279-287
Taylor vs. Intuitive was a bad case. They didn't correctly argue that the robot was and still is faulty. Please see below: Note the date of the study. Also check out their patent that was filed. It too says that this robot will burn you uncontrollably. Intuitive knew this from day one!
Journal of Endourology
•About This Journal...
•Subscribe...
•Buy Article...
Stray Electrical Currents in Laparoscopic Instruments Used in da Vinci® Robot-Assisted Surgery: An In Vitro Study
To cite this article:
Carlos E. Mendez-Probst, George Vilos, Andrew Fuller, Alfonso Fernandez, Paul Borg, David Galloway, and Stephen E. Pautler. Journal of Endourology. September 2011, 25(9): 1513-1517. doi:10.1089/end.2010.0706.
Published in Volume: 25 Issue 9: September 8, 2011
Online Ahead of Print: August 4, 2011
•Full Text HTML
•Full Text PDF (127.7 KB)
•Full Text PDF with Links (118.8 KB)
Author information
Carlos E. Mendez-Probst, M.D.,1 George Vilos, M.D., FRCSC,2 Andrew Fuller, MBBS,1 Alfonso Fernandez, M.D.,1 Paul Borg, C.Tech.,3 David Galloway, C.E.T.,3 and Stephen E. Pautler, B.Sc., M.D., FRCSC1,4
1Division of Urology, Department of Surgery, The University of Western Ontario, London, Ontario, Canada.
2Department of Obstetrics and Gynaecology, Schulich School of Medicine & Dentistry, The University of Western Ontario, London, Ontario, Canada.
3Department of Biomedical Engineering, St Joseph's Hospital, London, Ontario, Canada.
4Division of Surgical Oncology, Department of Oncology, Schulich School of Medicine & Dentistry, The University of Western Ontario, London, Ontario, Canada.
Address correspondence to:
Dr. Stephen E. Pautler
Division of Urology
St Joseph's Hospital
268 Grosvenor Street
London, Ontario, N6A 4V2
Canada
E-mail: Stephen.Pautler@sjhc.london.on.ca
ABSTRACT
Background and Purpose: The da Vinci® surgical system requires the use of electrosurgical instruments. The re-use of such instruments creates the potential for stray electrical currents from capacitive coupling and/or insulation failure. We used objective measures to report the prevalence and magnitude of such stray currents.
Materials and Methods: Thirty-seven robotic instruments were tested using an electrosurgical unit (ESU) at pure coagulation and cut waveforms at four different settings. Conductive gel-coated instruments were tested at 40W, 80W, and maximum ESU output (coagulation 120W, cut 300W). The magnitude of stray currents was measured by an electrosurgical analyzer.
Results: At coagulation waveform in open air, 86% of instruments leaked a mean of 0.4W. In the presence of gel-coated instruments, stray currents were detected in all instruments with means (and standard deviation) of 3.4W (±2), 4.1W (±2.3), and 4.1W (±2.3) at 40W, 80W, and 120W, respectively. At cut waveform in open air, none of the instruments leaked current, while gel-coated instruments leaked a mean of 2.2W (±1.3), 2.2W (±1.9) and 3.2W (±1.9) at 40W, 80W, and 300W, respectively.
Conclusions: All tested instruments in our study demonstrated energy leakage. Stray currents were higher during coagulation (high voltage) waveforms, and the magnitude was not always proportionate to the ESU settings. Stray currents have the potential to cause electrical burns. We support the programmed end of life of da Vinci instruments on the basis of safety. Consideration should be given to alternate energy sources or the adoption of active electrode monitoring technology to all monopolar instruments.
This paper was cited by:
A Prospective Analysis of Robotic Tip Cover Accessory Failure
Steven R. Engebretsen, Gene O. Huang, Caroline L. Wallner, Kirk M. Anderson, Amy E. Schlaifer, Don C. Arnold Ii, Gaudencio Olgin, D. Duane Baldwin
Journal of Endourology. 2013 Online Ahead of Print
Abstract | Full Text PDF or HTML | Reprints | Permissions
Electrosurgical Generators and Monopolar and Bipolar Electrosurgery
George A. Vilos, Chandrew Rajakumar
Journal of Minimally Invasive Gynecology. May 2013, Vol. 20, No. 3: 279-287
These lawyers are morons. I've contacted several law firms since I have inhouse, documented evidence of unintentional burns and they have blown me off. And when I tried to go down the whistleblower road I found out it only applies if the government loses money. What a great country we live in.
Wow! I thought other guy was stupid, this one is worse! Maybe it's same person.