{
  "meta": {
    "disclaimer": "Do not rely on openFDA to make decisions regarding medical care. While we make every effort to ensure that data is accurate, you should assume all results are unvalidated. We may limit or otherwise restrict your access to the API in line with our Terms of Service.",
    "terms": "https://open.fda.gov/terms/",
    "license": "https://open.fda.gov/license/",
    "last_updated": "2026-04-01",
    "results": {
      "skip": 0,
      "limit": 1,
      "total": 1
    }
  },
  "results": [
    {
      "status": "Terminated",
      "city": "Littleton",
      "state": "MA",
      "country": "United States",
      "classification": "Class II",
      "openfda": {},
      "product_type": "Devices",
      "event_id": "86693",
      "recalling_firm": "Mevion Medical Systems, Inc.",
      "address_1": "300 Foster St",
      "address_2": "N/A",
      "postal_code": "01460-2017",
      "voluntary_mandated": "Voluntary: Firm initiated",
      "initial_firm_notification": "Letter",
      "distribution_pattern": "Worldwide distribution - US Nationwide distribution including in the states of DC, FL, MO, NJ, OK and the country of Netherlands.",
      "recall_number": "Z-0485-2021",
      "product_description": "MEVION S250i, MEVION S250; Proton Radiation Treatment System - Product Usage: intended to deliver proton radiation treatment to patients with localized tumors or any other conditions susceptible to treatment by radiation",
      "product_quantity": "8 units",
      "reason_for_recall": "Treatment beam information disappears on Treatment Console screen while beam delivery continues potential for harm to a patient could occur",
      "recall_initiation_date": "20201019",
      "center_classification_date": "20201124",
      "termination_date": "20210831",
      "report_date": "20201202",
      "code_info": "Serial Numbers:  MEVION S250-0001  MEVION S250-0002  MEVION S250-0003  MEVION S250-0004  MEVION S250-0005  MEVION S250-0006  MEVION S250-0007  MEVION S250-0008    UDI:  01)00864366000100 (11) 131209  (01)00864366000100 (11)150526  (01)00864366000100 (11)150113  (01)00864366000100 (11)150430  (01)00864366000100 (11)160127  (01)00864366000100 (11)160603  (01)00864366000124 (11) 180220  (01)00864366000124 (11) 181219"
    }
  ]
}