English to Spanish Science Medical: Instruments medical devices

Hi,
I need help translating this sentence:

The PIP Fixation Hinge is an external fixation device designed to control rotation of an injured finger to regain, maintain or increase the range of motion of the proximal interphalangeal (PIP) joint.

How would you translate "PIP fixation hinge" in this sense? Is there a set translation in Spanish?

Thanks!