Laboratory evaluation of laparoscopic vascular clamps using a load-cell device--are all clamps the same?

The Journal of Urology
Hak J LeeRalph V Clayman

Abstract

The use of effective vascular clamps is key to successful laparoscopic partial nephrectomy. Based on our clinical experience the occlusive capabilities of vascular clamps appeared to be quite variable. We compared the occlusive force of currently available laparoscopic vascular clamps. The jaw force of 3 laparoscopic vascular clamps (Aesculap(R), Klein Surgical Systems, San Antonio, Texas and Karl Storztrade mark) were measured by clamping a 2.2 mm compression load cell (Interface Advanced Force Measurement, Scottsdale, Arizona) in pound-force. The variables tested were handheld Satinsky, DeBakey and Storz clamps vs bulldog clamps, proximal, middle and distal application position, new vs used bulldog clamps and new vs used Satinsky handheld clamps. In addition, handheld clamps were tested according to the force generated by the notches in the locking mechanism. Force retention was also determined for all instruments after clamping a 20Fr latex rubber catheter for an hour. Finally, leak pressure studies were performed using a harvested porcine artery to determine the relationship between jaw force and leak pressure in mm Hg of bulldog and Satinsky handheld clamps using a pressure gauge (Cole-Parmer(R)). Handheld vascular clamps ...Continue Reading

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Citations

Jan 18, 2011·Journal of Endourology·Phillip MucksavageMichael K Louie
Jul 31, 2013·Journal of Endourology·Brian LeRobert B Nadler
May 31, 2012·JSLS : Journal of the Society of Laparoendoscopic Surgeons·Shyam SukumarCraig G Rogers
Jan 20, 2011·BJU International·Michael K LouieRalph V Clayman
Sep 2, 2008·The Urologic Clinics of North America·Geoffrey N BoxRalph V Clayman

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