Torque limiting device for surgical use

Details Torque limiting device for surgical use Torque limiting device for surgical use

1999-09-14

2000-10-17

Philogene, Pedro

Surgery

Instruments

Orthopedic instrumentation

192 5654, 464 36, A61B 1788

Patent

active

061324353

ABSTRACT:
The present invention is directed to a device for limiting the maximum torque that is applied to a screw during a surgical procedure. The driving connection between the input and output shafts of the device is established through a plurality of transmission balls, which are maintained in position by the action of an elastic element within the torque limiting device. When the counter-torque created by the resistance of the screw exceeds the torque exerted by the elastic element, the transmission balls are caused to be disengaged, thereby severing the driving connection between the input and output shafts and preventing overtightening of the screw. The present torque limiter can be fully sterilized by autoclaving, as required for use in a surgical setting.

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