Hello Phil
No, I had never heard about that one; but, there again, why should I (even though it took place six years ago)?

... submitted evidence in the case that the ultrasonography equipment provided ... was antiquated, lacking the sensitivity of modern ultrasound machines. When questioned ..., the hospital’s Risk Manager admitted there was no evidence the equipment had even been serviced for more than 10 years, whereas the manual indicates that annual maintenance is necessary.
All for the want of a dated sticker! It makes me wonder if the hospital even has (had) a biomed on the staff.
"Blaming the kit" (again); who would have thought it?

No mention of a faulty probe, though. But at least they apparently had a manual.
But having spent a whole chunk (note the American "terminology" there) of my life banging on (preaching?) about PM, I can only imagine that the message has yet to reach Philadelphia, USA.
Placental abruption