Design goals
Dr. T.S. Oei MD, PhD, orthopedic surgeon at the Red Cross Hospital in the Dutch town of Beverwijk, noticed that the surgical instruments generally used in the OR did not meet with modern ideas of ergonomics. Most of the designs go back over 100 years and virtually nothing has changed since then. Dr. Oei initiated a study at the Technical University of Delft to measure the strain on the hand, arm and neck when using various types of surgical retractors. After creating prototypes of various designs and sizes, he developed a universal handle than would reduce the strain on the hand, wrist and lower arm, even during prolonged use and at various angles.
The double-curved patented Versagrip handle was designed for comfortable handling in every position. A handgrip is often held one way, but occasionally objects need to be held in different grip positions and at varying angles, e.g. underarm, over-arm, oblique underarm, and oblique over-arm. Where tensile forces have to be exerted on the instrument, a good grip is vital. Instruments with an ergonomically designed handle are also essential to avoid fatigue setting in too soon and to enable personnel to exert the necessary force with the least effort. A properly designed instrument will aid surgery and minimize the risk of injury to personnel.
Tan GE. Ontwerp van een ergonomische wondhaak. TU Delft, 2005
