What Is FDA Product Code MUJ?
System, Planning, Radiation Therapy Treatment is FDA product code MUJ, Class 2, 21 CFR 892.5050.
How Does It Reach the US Market?
A 510(k) premarket notification is required before it is sold in the United States: the applicant shows the device is substantially equivalent to one already on the market. Chinese applicants hold 1 clearance under this code; the FDA took 209 days from receipt to decision.
What Has Gone Wrong With It?
The FDA has recorded 267 recalls under this product code since 0010. None was by a company in China. The root causes the FDA records most often are Software design (143), Device Design (19) and Software Design Change (7).
A recall is a fact about one product and its maker, not a grade for every manufacturer of the type.