---
title: "Mevion S250 and S250i Proton Therapy Systems hand pendant (P/N 10263 or P/N 3... — FDA record Z-0827-2022 | Is It on Recall"
description: "Malfunction of the hand pendant controlling movement of the therapy couch and nozzle may result in unintentional motion. Patient injury is possible if they come"
url: https://isitonrecall.com/recall/fda-device-z-0827-2022-mevion-s250-and-s250i-proton-therapy-systems-hand-pendant-p-n-10263-or-p-n-37808/
updated: 2026-10-01
site: "Is It on Recall"
language: en
---

[Recall archive](https://isitonrecall.com/archives/) / FDA device enforcement

# Mevion S250 and S250i Proton Therapy Systems hand pendant (P/N 10263 or P/N 37808) — FDA record Z-0827-2022

Reported ongoing

Status as reported in the agency record. FDA warns that enforcement status may not track the current recall lifecycle; check the current official notice.

Source date Feb 1, 2022. Retrieved Oct 1, 2026. Last updated Oct 1, 2026.

Archive changed Oct 1, 2026. USDA FSIS records are unavailable; [check FSIS directly](https://www.fsis.usda.gov/recalls). [Source coverage and dates](https://isitonrecall.com/sources/).

## What the record says

- **Product**: Mevion S250 and S250i Proton Therapy Systems hand pendant (P/N 10263 or P/N 37808)
- **Reason**: Malfunction of the hand pendant controlling movement of the therapy couch and nozzle may result in unintentional motion. Patient injury is possible if they come in contact with the nozzle or other objects in the treatment room.
- **Classification**: Class II
- **Recalling firm**: Mevion Medical Systems, Inc.
- **Quantity**: 39 (36 US, 3 OUS)
- **Agency-reported status**: Ongoing
- **Source record identifier**: Z-0827-2022

[Open the official record](https://api.fda.gov/device/enforcement.json?search=recall_number%3A%22Z-0827-2022%22)

[What the recall classes mean](https://isitonrecall.com/guides/recall-classes/). Classification is an agency assessment, not individual medical advice.

## Lot and product identifiers

| Label field | Details supplied by the agency |
| --- | --- |
| Lot, code or applicability | All theryapy systems, all hand pendant serial numbers. Therapy system UDI 00864366000100 and UDI 00864366000124. |

Match all identifying details in the current notice. A brand name alone is not enough.

## Distribution

Worldwide distribution - US Nationwide distribution in the states of FL, MO, NJ, OH, OK, UT, DC and the country of Netherlands.

States below are derived from the distribution text, including nationwide wording. They are not inferred from the firm's address.

- [Alaska](https://isitonrecall.com/state/alaska/)
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- [Wyoming](https://isitonrecall.com/state/wyoming/)

## Dates in the source

- **Report date**: Apr 6, 2022
- **Recall initiation date**: Feb 1, 2022
- **Center classification date**: Mar 25, 2022

FDA company pages use the listing date; enforcement records use initiation dates; CPSC uses recall date; NHTSA uses report-received date. These dates are not interchangeable.

## What to do next

Read the official notice for the action that applies to your exact product.

[Read the current instructions](https://api.fda.gov/device/enforcement.json?search=recall_number%3A%22Z-0827-2022%22)

## Related records

[Medical devices records](https://isitonrecall.com/category/medical-devices/) [Mevion Medical Systems, Inc. records](https://isitonrecall.com/brand/mevion-medical-systems-inc/)
