Use cautionMedical device recall · FDA · Published October 20, 2017
Hitachi Medical UST-5550-R Ultrasound Probe Recall: Electrical Shock Hazard
Hitachi Medical recalls UST-5550-R ultrasound transducers used in surgical procedures due to risk of electrical shock. Affected units may cause injury during medical procedures.
“Hitachi Medical UST-5550-R Ultrasound Probe Recall: Electrical Shock Hazard.” GovInfoNow, updated September 14, 2026. https://govinfonow.com/recall/72775-hitachi-medical-ust-5550-r-ultrasound-probe-recall-electrical-shock. Based on FDA recall #Z-0816-2018 (https://api.fda.gov/device/enforcement.json?search=recall_number:%22Z-0816-2018%22&limit=1).
The FDA announced on 2017-10-20 that Hitachi Medical Systems America Inc is recalling the Model UST-5550-R Ultrasound Transducer due to inadequate protection against electrical shock hazards. Owners should contact the company for a remedy.
How to tell if you have it
Brand: Hitachi Medical
Product: Ultrasound Transducer
Model Number: UST-5550-R
Units affected: 55
The hazard
The ultrasound probe may not have adequate protection against electrical shock hazards, according to the FDA.
Context
GovInfoNow's records show Hitachi Medical Systems America Inc has 5 other recalls on record since 2018-06-18. Other recent recalls of similar products include Sheathes3D Viral Barrier Ultrasound Probe Covers Recall (2025-11-17), GE Medical Systems Allia IGS 7 Pulse X-Ray System Recall (2026-04-20) and GE Medical Systems Allia IGS 3 Pulse X-Ray System Recall (2026-04-20).
How to tell if you have this one
Check for the model number UST-5550-R on the ultrasound transducer. These devices are used with diagnostic ultrasound systems during surgical procedures.
Brand
Hitachi Medical
Category
Medical device
Based on the official FDA remedy
What to do — step by step
Check for Model Number
Look for the model number UST-5550-R on the ultrasound transducer.
Where it went and when
Where it was distributed
Distributed in 21 states.
Listed by the agency
Not listed
FDA distribution: “Distributed in 21 states: AR, AZ, CA, CO, FL, GA, IA, IL, IN, MA, MO, NC, NY, OK, OR, PA, SC, TX, VA, WA, WV.” States read from FDA’s own wording; “not listed” means the notice does not name it.
States: Arizona, Arkansas, California, Colorado, Florida, Georgia, Illinois, Indiana, Iowa, Massachusetts, Missouri, New York, North Carolina, Oklahoma, Oregon, Pennsylvania, South Carolina, Texas, Virginia, Washington, West Virginia.
Recall timeline
FDA terminated this recall 2.5 years after the firm started it.
1Firm started the recall
2FDA classified it Class II
3Published in FDA’s Enforcement Report
4FDA terminated the recall
Dates from the agency record only; steps without a date are left out.
The facts (hazard, remedy, dates, manufacturer) are pulled from the official FDA recall record. The plain-language summary and step-by-step checklist are written by GovInfoNow to make the official notice easier to act on — they don’t replace it.
Official source: FDA Recall #Z-0816-2018 (October 20, 2017) — FDA publishes no per-recall page; this is the official machine-readable enforcement record. Search FDA recalls for Z-0816-2018 to see it in context.
Plain-language summary written by qwen3:4b on September 14, 2026, from the official record above. Not reviewed by a person — if it conflicts with the FDA notice, the notice is correct. Report an error on this page.
GovInfoNow is an independent service and is not a government agency. We republish official FDA recall data; we don’t issue, amend or administer recalls.