Severity
Moderate
ModerateClass IITerminated
FDA Devices recall · Reported May 9, 2018
MHI-TM2000 Linear Accelerator System Product Usage: MHI-TM2000 Linear Accelerator System is intended for radiation therapy of lesions, tumors and conditions anywhere in the body where radiation treatment is indicated.
Due to a system controller software anomaly, the patient positioning deviation correction may not be applied and may result in the wrong part of the patient being irradiated.
Hitachi Ltd., Medical System Operations Group recalled MHI-TM2000 Linear Accelerator System Product Usage: MHI-TM2000 Linear Accelerator Sys… - a moderate-severity action.
MHI-TM2000 Linear Accelerator System Product Usage: MHI-TM2000 Linear Accelerator Sys… was recalled by Hitachi Ltd., Medical System Operations Group in May 9, 2018. Reason: Due to a system controller software anomaly, the patient positioning deviation correction may not be applied …. Check the official notice for the remedy. Verify recall #Z-1585-2018 with the FDA Devices before acting.
The recall
Hitachi Ltd., Medical System Operations Group issued this moderate-severity FDA Devices recall-Due to a system controller software anomaly, the patient positioning deviation correction may not be applied ….
- Moderate
- severity level
- 1 units
- affected scope
- Class II
- classification
- May 9, 2018
- reported
Sourced from official FDA Devices enforcement records. Verify recall #Z-1585-2018 with the agency before acting. Full product description, hazard, remedy, and related recalls are below.
Recall Insight
This FDA Devices action (record #Z-1585-2018) was formally reported on May 9, 2018, with the manufacturer initiating the action on December 8, 2017. It is classified under Moderate severity (Class II), with a current status of Terminated. Hitachi Ltd., Medical System Operations Group is listed as the recalling firm, operating out of Kashiwa, N/A. Federal records list the affected scope as 1.
The documented reason for this recall is: Due to a system controller software anomaly, the patient positioning deviation correction may not be applied and may result in the wrong part of the patient being irradiated. Distribution data in the federal record shows the product reached: US Distribution in the state of NY.. 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, 6 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 - 40,861 medical devices recalls on record
Of 88,001 recalls with an agency hazard classification, 19,020 are high severity, 64,468 moderate, and 4,513 low. A further 16,157 CPSC/NHTSA recalls have no agency class and are excluded from this split. 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
1
Related Recalls
6
6 from same agency
Product description
MHI-TM2000 Linear Accelerator System Product Usage: MHI-TM2000 Linear Accelerator System is intended for radiation therapy of lesions, tumors and conditions anywhere in the body where radiation treatment is indicated.
Reason for recall
Due to a system controller software anomaly, the patient positioning deviation correction may not be applied and may result in the wrong part of the patient being irradiated.
Recall Profile
| Attribute | Value |
|---|---|
| Agency | U.S. Food and Drug Administration |
| Severity class | Moderate (Class II) |
| Status | Terminated |
| Recall number | Z-1585-2018 |
| Date reported | May 9, 2018 |
| Date initiated | December 8, 2017 |
| Recalling firm | Hitachi Ltd., Medical System Operations Group |
| Firm location | Kashiwa, N/A |
| Affected scope | 1 |
| Distribution | US Distribution in the state of NY. |
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-1585-2018) 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? ▼
MHI-TM2000 Linear Accelerator System Product Usage: MHI-TM2000 Linear Accelerator System is intended for radiation therapy of lesions, tumors and conditions anywhere in the body where radiation treatment is indicated.. Recalled by Hitachi Ltd., Medical System Operations Group. Units affected: 1.
Why was this product recalled? ▼
Due to a system controller software anomaly, the patient positioning deviation correction may not be applied and may result in the wrong part of the patient being irradiated.
Which agency issued this recall? ▼
This recall was issued by the FDA Devices on May 9, 2018. Severity: Moderate. Recall number: Z-1585-2018.
Where was the recalled product distributed? ▼
Distribution: US Distribution in the state of NY..
How do I check if my product is affected by a recall? ▼
Check the product description and recall number (Z-1585-2018) 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.
Nationwide recalls with similar severity or category timing
Two federal-filing-derived peer sets for this notice, both outside the same recalling firm and filing state so the neighborhoods are not firm or geographic containment.
Similar severity · nearest report date
Same archive severity grade (Moderate), closest by report date among other firms and states.
Similar Medical Devices · nearest report date
Same product category, closest by report date among other firms and states (deduped against the severity set).
Nearby Recalls in This Category
Other recalls in the same product category, useful for spotting patterns across the same defect class or manufacturer.
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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 9, 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 August 2026.