“Card Injuries of the Hand” Associated with Multiple Broken Pins

During the years 1968 and 1969 forty-two cases of "Card Injuries of the Hand" were seen, of which eleven patients had broken embedded pins in their fingers. Wire pins of different tensile strengths, depending upon the quality of steel used (Fig. 1), are used for the various grades of carding and combing operations. The type of injury caused by these wire pins depends upon the speed of the machine at the time and also the distance of the gap set between the spiked rollers and the feeding plate.