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FDA Medical Device Recalls (openFDA)

Ion Beam Applications S.A.: Proteus 235 Proton Therapy System for cancer treatment.

Recall number
Z-0020-2015
Recalling firm
Ion Beam Applications S.A.
Product
Proteus 235 Proton Therapy System for cancer treatment.
Status
Terminated
Initiated
2014-03-27
Posted
2014-10-29
Terminated
2014-12-10
Reason
While the Proteus 235 is in the pencil beam scanning (PBS) treatment mode, on rare occasions, Low Level Radio Frequency (LLRF) pulsed dee voltage (i.e., voltage applied between two electrodes in the cyclotron to accelerate protons) may generate a hot spot on a pencil beam position within a tumor, generating a dose that might exceed the prescribed dose on a single voxel.
Root cause
Device Design
Action
A User Notice was sent to direct accounts in/about March/April 2014 to notify them of the issue and provide instructions to avoid the identified potential risk to patients.
Quantity
8
Distribution
Worldwide Distribution-USA (nationwide) including the states of PA, NJ, IL, WA, and TN, and the countries of Germany, Italy, and Czech Republic.
Lot, serial or model codes
PAT.107, PAT.109, PAT.112, PAT.113, PAT.114, PAT.115, PAT.116, PAT.119.
510(k) numbers
["K082416"]
PMA numbers
not on file
Product code
IYE
Firm FEI
3000256071
Firm city
Louvain La Neuve
Firm state
not on file
Firm country
Belgium

Where this comes from

Register
FDA Medical Device Recalls (openFDA)
Publisher
U.S. Food and Drug Administration (openFDA)
File
device-recall-0001-of-0001.json.zip
sha256
b87518bfe2e8
Size
288210821 bytes
Published
2026-09-28
Read
2026-09-29T08:25:23.626Z
Source file
Source file retained · verify
Refresh due
2026-10-06

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Cite as

FDA Medical Device Recalls (openFDA) (U.S. Food and Drug Administration (openFDA)), device-recall-0001-of-0001.json.zip, sha256 b87518bfe2e8, published 2026-09-28

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