SOMATOM Definition Flash (Model 10430603) Computed tomography x-ray diagnostic system
FDA Device Recall #Z-1747-2018 — Class II — November 8, 2017
Recall Summary
| Recall Number | Z-1747-2018 |
| Classification | Class II — Moderate risk |
| Date Initiated | November 8, 2017 |
| Status | Terminated |
| Voluntary | Voluntary: Firm initiated |
Recalling Firm
| Firm | Siemens Medical Solutions USA, Inc |
| Location | Malvern, PA |
| Product Type | Devices |
| Quantity | 238 |
Product Description
SOMATOM Definition Flash (Model 10430603) Computed tomography x-ray diagnostic system
Reason for Recall
There is a potential risk of unnecessary radiation exposure due to a software issue found in the CARE Dose4D algorithm implemented in Siemens Healthineers CT scanners of types SOMATOM Definition AS, SOMATOM Definition DS, SOMATOM Definition Edge, SOMATOM Definition Flash and SOMATOM Force.
Distribution Pattern
Distributed in all 50 U.S. states, the District of Columbia, Guam, and Puerto Rico.
Lot / Code Information
Serial Numbers: 73917 73064 98602 98603 73476 73339 73739 73059 73586 73421 73937 98616 73312 74206 73075 73099 73544 73648 74156 73734 73343 73374 73726 73526 73636 73346 73518 74207 73258 74054 73860 73579 73813 73930 73120 73108 74360 73054 74128 74926 73679 73427 98600 73622 73533 73621 73423 73424 73493 73520 73718 73459 73372 73637 73303 73296 73349 74924 74927 73786 73240 73279 73278 74374 73531 73760 73831 73224 73820 74042 73840 74191 73832 73152 74117 74118 74405 73673 73651 73352 73044 74456 73487 73492 73494 73497 73016 73711 74929 73310 73409 73778 73935 73642 73709 73722 74240 73130 73013 73657 73300 73499 73535 73090 98607 73377 73031 73355 73777 98617 73330 73883 73366 73783 73036 73623 73908 74978 73667 73285 73281 73141 73684 73248 74391 74209 73490 74399 73461 73428 73791 73455 73191 73887 73071 98606 74094 98601 74098 74045 74363 73758 73513 74368 73368 73035 73895 73297 73182 73122 74262 74116 73253 73337 73375 74158 74153 73153 73545 74192 98613 74925 73670 73361 74226 74297 74234 74364 74376 73162 73262 73328 73241 73683 74048 74068 73320 73697 73635 73405 73471 74912 73160 73600 73742 73030 73655 73931 73921 73818 73873 73028 74145 73155 73591 74904 73905 73938 98605 73244 73546 74922 73478 73547 73442 73886 73504 73413 73674 73514 73464 73445 74129 73538 73420 73904 74093 73127 73185 73268 73761 74200 74289 74062 73521 73522 73261 73357 73430 74251 73235 73911 73574 73061 73604 74152 73151 73225
Other Recalls from Siemens Medical Solutions USA, Inc
| Recall # | Classification | Product | Date |
|---|---|---|---|
| Z-1175-2026 | Class II | Interventional Fluoroscopic X-Ray System: LUMIN... | Dec 29, 2025 |
| Z-1174-2026 | Class II | Interventional Fluoroscopic X-Ray System: LUMIN... | Dec 29, 2025 |
| Z-1241-2026 | Class II | NAEOTOM Alpha.Prime Software applications: s... | Dec 19, 2025 |
| Z-1240-2026 | Class II | NAEOTOM Alpha Software applications: syngo.C... | Dec 19, 2025 |
| Z-1239-2026 | Class II | SOMATOM X.ceed Software applications: syngo.... | Dec 19, 2025 |
Frequently Asked Questions
A software recall means the device's embedded software or firmware has a defect that could affect its performance or safety. Many software recalls are corrected through firmware updates that can be applied without physically replacing the device. For implantable devices, the update may be delivered wirelessly during a routine clinic visit. For external devices, the manufacturer may provide updated software files or replacement units. Contact your healthcare provider to determine whether your specific device and software version are affected and what action is recommended.
Class I recalls indicate a reasonable probability of serious adverse health consequences or death from the defect. Class II recalls involve products that may cause temporary or medically reversible adverse health consequences, or where serious consequences are remote. Class III recalls cover products not likely to cause any adverse health consequences, typically involving technical regulatory violations. The classification guides urgency — Class I recalls require immediate action, while Class III may simply involve returning a product or acknowledging a labeling change. Always read the specific recall notice for recommended patient actions.
Report problems with medical devices to the FDA through MedWatch at 1-800-FDA-1088 or online at FDA.gov/safety/medwatch. Healthcare facilities are required by law to report device-related serious injuries and deaths. Patients and consumers can also report voluntarily. Include the device name, manufacturer, model number, and a description of the problem and any patient outcome. Reports from patients and clinicians help the FDA identify emerging safety signals and may trigger investigations that lead to recalls of dangerous devices.
What Should You Do?
Stop using this device if you are affected by this recall. Contact your healthcare provider and the manufacturer immediately for guidance. Report adverse events to FDA MedWatch.