FDAApril 10, 2017device

Proton therapy system -Proteus 235 aka Proteus Plus. A medical device designed to produce and deliver a proton beam for the treatment of patients with localized tumors and other conditions susceptible to treatment by radiation.

Official recall recorded by the U.S. Food & Drug Administration.

The hazard

A PBS (Pencil Beam Scanning) irradiation may pause for different reasons. After a pause, irradiation may restart from the beginning instead of recalculating the field based on the already delivered dose.

What to do

FDA enforcement status: Terminated

Brands named

ion beam applicationsionion beam

Recall history

Other federal recalls tied to the same brand — a factual pattern, straight from the source data.

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