Laparoscopic Surgical Device
A medical device manufacturer was using a Swiss style CNC-machined Knurled Solid Pin in a surgical device. This specific device is used as a “grasper” to allow the surgeon to operate through a laparoscopic port versus having to fully open-up the patient to perform the surgical procedure. The pin is used to drive the jaw movement at the distal end of the device. During pin installation, the customer was experiencing high insertion force, bending of the pins, damage to the sub-assembly, and generation of metallic debris. Since this device is meant to go inside the human body, the possibility of introducing metal chips or shavings is completely unacceptable.