Severity
Moderate
ModerateClass IITerminated
FDA Devices recall · Reported May 2, 2018
Proteus 235, ProteusPLUS or Proteus ONE produces and delivers a proton beam for the treatment of patients with localized tumors and other conditions susceptible to treatment by radiation.
When switching from Pencil Beam Scanning treatment mode to Uniform Scanning treatment mode, the tuning setpoints of the scanning magnets are not always taken into account when the…
Compiled from official public sources by the editorial team.
Verify with FDA Devices →
Ion Beam Applications S.a. recalled Proteus 235, ProteusPLUS or Proteus ONE produces and delivers a proton beam for the treat… - a moderate-severity action.
Proteus 235, ProteusPLUS or Proteus ONE produces and delivers a proton beam for the treat… was recalled by Ion Beam Applications S.a. in May 2, 2018. Reason: When switching from Pencil Beam Scanning treatment mode to Uniform Scanning treatment mode, the tuning setpoi…. Check the official notice for the remedy. Verify recall #Z-1477-2018 with the FDA Devices before acting.
The recall
Ion Beam Applications S.a. issued this moderate-severity FDA Devices recall-When switching from Pencil Beam Scanning treatment mode to Uniform Scanning treatment mode, the tuning setpoi….
- Moderate
- severity level
- 5 units
- affected scope
- Class II
- classification
- May 2, 2018
- reported
Sourced from official FDA Devices enforcement records. Verify recall #Z-1477-2018 with the agency before acting. Full product description, hazard, remedy, and related recalls are below.
Recall Insight
This FDA Devices action (record #Z-1477-2018) was formally reported on May 2, 2018, with the manufacturer initiating the action on January 26, 2018. It is classified under Moderate severity (Class II), with a current status of Terminated. Ion Beam Applications S.a. is listed as the recalling firm, operating out of Louvain La Neuve, N/A. Federal records list the affected scope as 5.
The documented reason for this recall is: When switching from Pencil Beam Scanning treatment mode to Uniform Scanning treatment mode, the tuning setpoints of the scanning magnets are not always taken into account when the proton beam is requested. The mismatch … Distribution data in the federal record shows the product reached: Consignees in four states: VA, IL, NJ, and WA. One consignee located in Germany.. Distribution scope directly affects the consumer exposure window and determines whether a recall remains regional or escalates into a nationwide advisory.
Within the same product category the archive holds 6 closely related recalls, 3 from FDA Devices - clustering in a narrow category often points to a systemic quality-control or supplier issue rather than a one-off defect. Always verify the recall number against the official agency record before acting.
Medical Devices recalls over time
Where this recall sits in its category - 40,322 medical devices recalls on record
Of 101,704 recalls in the database, 24,878 are high severity, 72,426 moderate, and 4,400 low. This recall is classified moderate severity.
Counts reflect market size and reporting activity, not inherent danger, we do not rank products by risk from raw recall volume.
Affected scope
5
Related Recalls
6
3 from same agency
Product description
Proteus 235, ProteusPLUS or Proteus ONE produces and delivers a proton beam for the treatment of patients with localized tumors and other conditions susceptible to treatment by radiation.
Reason for recall
When switching from Pencil Beam Scanning treatment mode to Uniform Scanning treatment mode, the tuning setpoints of the scanning magnets are not always taken into account when the proton beam is requested. The mismatch between the setpoint and feedback leads to an error message. Depending on user action, two scenarios are possible: 1. The user resumes the treatment field without analyzing the cause for the error message. This may lead to under-irradiation. 2. The user reboots the Scanning Magnets Power Supply Electronic Unit. This may lead to delay in patient treatment and the patient may need to be re-aligned, which leads to an additional X-ray dose.
Recall Profile
| Attribute | Value |
|---|---|
| Agency | U.S. Food and Drug Administration |
| Severity class | Moderate (Class II) |
| Status | Terminated |
| Recall number | Z-1477-2018 |
| Date reported | May 2, 2018 |
| Date initiated | January 26, 2018 |
| Recalling firm | Ion Beam Applications S.a. |
| Firm location | Louvain La Neuve, N/A |
| Affected scope | 5 |
| Distribution | Consignees in four states: VA, IL, NJ, and WA. One consignee located in Germany. |
Profile values are sourced directly from the official FDA Devices enforcement record. Source: U.S. Food and Drug Administration.
What to do with this recall
Match your product against the recall record, then act on the agency remedy.
- Check the recall number (Z-1477-2018) and product description against the item you own. Search the archive
- Confirm the current status with FDA Devices before acting, recall details can be updated.
- Follow the documented remedy (refund, replacement, repair, or disposal) rather than general advice. What to do next
This page summarizes the official FDA Devices record for research and awareness; it is not legal, medical, or safety advice. Verify with the issuing agency before acting.
Frequently Asked Questions
What product was recalled? ▼
Proteus 235, ProteusPLUS or Proteus ONE produces and delivers a proton beam for the treatment of patients with localized tumors and other conditions susceptible to treatment by radiation.. Recalled by Ion Beam Applications S.a.. Units affected: 5.
Why was this product recalled? ▼
When switching from Pencil Beam Scanning treatment mode to Uniform Scanning treatment mode, the tuning setpoints of the scanning magnets are not always taken into account when the proton beam is requested. The mismatch between the setpoint and feedback leads to an error message. Depending on user action, two scenarios are possible: 1. The user resumes the treatment field without analyzing the cause for the error message. This may lead to under-irradiation. 2. The user reboots the Scanning Magnets Power Supply Electronic Unit. This may lead to delay in patient treatment and the patient may need to be re-aligned, which leads to an additional X-ray dose.
Which agency issued this recall? ▼
This recall was issued by the FDA Devices on May 2, 2018. Severity: Moderate. Recall number: Z-1477-2018.
Where was the recalled product distributed? ▼
Distribution: Consignees in four states: VA, IL, NJ, and WA. One consignee located in Germany..
How do I check if my product is affected by a recall? ▼
Check the product description and recall number (Z-1477-2018) against your product. Visit the official FDA Devices website for the most current information. You can also use our Recall Checker tool to search by product name or brand.
Should I stop using a recalled medication or medical device? ▼
Do not stop using a recalled medication or device without consulting your healthcare provider first, as abruptly discontinuing treatment could pose its own health risks. Your doctor can advise on alternatives or whether the recall applies to your specific product lot. Check the recall number and lot information against your product packaging.
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Every figure on PlainRecalls is rendered directly from official FDA, CPSC and NHTSA recall records, no number is typed in by an editor. This recall: FDA Devices, reported May 2, 2018. Severity classes follow each agency's own taxonomy (FDA Class I/II/III; CPSC and NHTSA by hazard type), and related-recall context is computed across the full archive. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of July 2026.