Traditionally, opening a patient's thoracic wall requires fast movement and consistent torque to minimize trauma. This is accomplished with a hand cranked thoracic retractor operated by the surgeon. Utilising this methodology, current loops are typically applied in place of a torque sensor to monitor torque when automating small systems. However, this setup offers poor accuracy and a non-linearity of ± 5–10%. Needless to say, a new, more precise platform is needed.
FUTEK we have replaced the hand crank with a miniature, high-precision, brushless DC servo motor and gearhead. Alongside the DC servo motor is FUTEK's QTA141 Micro Reaction Torque Sensor, which has accuracy and non-linearity of ± 0.5%. Adopting this setup provides the surgeon with a faster and more accurate torque feedback system, in addition to benefiting the patient with less time spent in the operating room, a reduction in potential bone fractures, and a more rapid recovery time.
For further information in Australia & New Zealand, please contact Metromatics on +61 73868 4255 or sales@metromatics.com.au
For outside this area, please contact Futek directly on +1 949 465 0900
