Tech in Surgery Prep / Unit 12 TSC 277 worked example, 60 to 90 seconds
How a Ringed Instrument Works
The idea
Many surgical instruments are ring-handled, with finger rings, a hinge, and jaws or blades at the working end.
In practice
Take the instrument apart in your mind, from the hand to the tip. First, the rings, which the user's thumb and finger go through. Second, on clamps and needle holders, a ratchet near the rings, which locks the jaws closed in steps, so the grip holds without the user squeezing. Third, the hinge, where the two halves pivot. Fourth, the jaws or blades, which may be serrated, toothed or smooth depending on the job. Fifth, the tips, which may be straight, curved or angled. Scissors share the rings and hinge but have cutting blades and no ratchet.
Where people slip
The hinge and jaws are where blood and tissue collect. That is why ring-handled instruments are opened for cleaning and sterilization, and why a stiff or misaligned hinge is reported rather than forced.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Something wrong in this lesson? Flag it · Sources for Tech in Surgery Prep