Parts from anywhere: judgment calls in a thin market

In well-funded systems, the parts question is a purchase order. In thin markets it's a judgment call, and pretending otherwise helps no one. So let's talk about the judgment honestly.

A useful frame: match the part's provenance to its criticality. A caster, a knob, a casing hinge — function is verification, and almost any sound source serves. A power-path or fluid-path component deserves more: reputable third-party or salvaged-from-known-good, tested before clinical return. And components where failure directly endangers a patient — energy delivery, life-support actuation, dosing accuracy — justify holding out for OEM or certified equivalents, or escalating the decision rather than absorbing it alone.

Salvage from retired siblings (covered in our decommissioning piece) is often the best thin-market source: known model, known history, free. Fabrication — printed brackets, machined adapters — shines for mechanical non-critical parts and deserves more respect than it gets, with the same criticality discipline applied.

Two practices keep all of this defensible: record what was installed and where it came from, and never let an improvised part silently become permanent on a life-critical path without a plan to replace it properly.

Research in this field has found that the truly unobtainable part is rarer than assumed — much 'no parts' downtime is actually information and judgment downtime. Sharpening the judgment, and sharing it across a network, is part of the cure.