CLASS II Device recall · Reported 21 Mar 2018 · FDA Enforcement Report

Proteus 235, Proton Therapy System a medical device recalled

Ion Beam Applications is recalling Proteus 235, Proton Therapy System a medical device designed to produce and delivers a, distributed nationwide in the US. The recall was initiated on 17 Nov 2017 and the FDA has classified it as Class II.

Check your package

Lot, batch or date codesPAT.000 (US), PAT.001 (CN), PAT.003 (KR), PAT.006 (US), PAT.107 (EU), PAT.108 (US), PAT.109 (US), PAT.110 (US), PAT.111 (EU), PAT.112 (US), PAT.113 (US), PAT.114 (EU), PAT.115 (EU), SAT.116 (US), SAT.117 (EU), SAT.119 (US), SAT.120 (EU), SAT.122 (EU), SAT.123 (US), SAT.126 (US), SAT.132 (EU), SAT.133 (US), SBF.101 (EU), SBF.105 (US)
Quantity recalled37

Stop using the device if the notice says to, and contact the manufacturer or your healthcare provider for the correction or replacement.

Recall details

Recall number
Z-0938-2018
FDA event ID
79230
Recalling firm
Ion Beam Applications, Louvain La Neuve
Classification
Class II
Status
Terminated
Recall initiated
17 Nov 2017
FDA classified
9 Mar 2018
Reported
21 Mar 2018
Type
Voluntary: Firm initiated
Customers notified by
Letter
Reason category
Other Reasons

Timeline

17 Nov 2017Recall initiated by company
9 Mar 2018Classified by FDA+112 days
21 Mar 2018Published in enforcement report+12 days

Companies usually start a recall weeks before the FDA classifies and publishes it; the gap above is that lag.

Reason for recall

There is a risk of misalignment of the patient when using treatment plans with multiple isocenters.

Product as listed by the FDA

Proteus 235, Proton Therapy System a medical device designed to produce and delivers a proton beam for the treatment of patients with localized tumors and other conditions susceptible to treatment by radiation.

Where it was distributed

Nationally

Nationwide

Questions about this recall

Why was it recalled?

There is a risk of misalignment of the patient when using treatment plans with multiple isocenters.

Which lots are affected?

PAT.000 (US), PAT.001 (CN), PAT.003 (KR), PAT.006 (US), PAT.107 (EU), PAT.108 (US), PAT.109 (US), PAT.110 (US), PAT.111 (EU), PAT.112 (US), PAT.113 (US), PAT.114 (EU), PAT.115 (EU), SAT.116 (US), SAT.117 (EU), SAT.119 (US), SAT.120 (EU), SAT.122 (EU), SAT.123 (US), SAT.126 (US), SAT.132 (EU), SAT.133 (US), SBF.101 (EU), SBF.105 (US)

Where was it sold?

Nationally

What should I do if I have it?

Stop using the device if the notice says to, and contact the manufacturer or your healthcare provider for the correction or replacement.

What does Class II mean?

Class II means the product may cause temporary or medically reversible health problems, or the probability of serious harm is remote.

Read the official FDA notice · Source record retrieved 26 Sep 2026. The FDA describes openFDA data as unvalidated; the official notice takes precedence. This page reports the record and gives no medical advice.

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