CLASS II Device recall · Reported 31 Mar 2021 · FDA Enforcement Report

Ultrasonic pulsed doppler imaging system recalled

Hitachi Medical Systems America is recalling Ultrasonic pulsed doppler imaging system, distributed nationwide in the US. The recall was initiated on 1 Mar 2021 and the FDA has classified it as Class II.

Check your package

Lot, batch or date codesAsset Tag: U8AR0479 Arietta 850 software version 4.0.0., 4.0.1, and 4.0.2
Quantity recalled1

Stop using the device if the notice says to, and contact the manufacturer or your healthcare provider for the correction or replacement.

Recall details

Recall number
Z-1282-2021
FDA event ID
87493
Recalling firm
Hitachi Medical Systems America, Twinsburg, OH
Classification
Class II
Status
Terminated
Recall initiated
1 Mar 2021
FDA classified
19 Mar 2021
Reported
31 Mar 2021
Type
Voluntary: Firm initiated
Customers notified by
Letter
Reason category
Potency & Assay

Timeline

1 Mar 2021Recall initiated by company
19 Mar 2021Classified by FDA+18 days
31 Mar 2021Published in enforcement report+12 days

Companies usually start a recall weeks before the FDA classifies and publishes it; the gap above is that lag.

Reason for recall

Arietta 850 software version 4.0.0., 4.0.1, and 4.0.2 has an error in the focus point and transducer aperture settings in the SWE function. When the affected software with SWE function is used in conjunction with the C252 probe, this error can result in out of specification MI/TI acoustic output. The MI/TI acoustic output is higher than regulatory limits.

Potency and specification recalls happen when a batch tests outside its approved limits for strength, purity or dissolution, which can mean the dose delivered is higher or lower than labelled.

Product as listed by the FDA

Ultrasonic pulsed doppler imaging system - Product Usage: intended for use by trained personnel (doctor, Sonographer, etc.) for the diagnostic ultrasound evaluation of Fetal, Abdominal, Intra-operative (Spec.), Intraoperative (Neuro.), Laparoscopic, Pediatric, Small Organ (Spec.), Neonatal Cephalic, Adult Cephalic, Trans-rectal, Trans-vaginal, Trans-esoph. (non-Card.), Musculo-skel. (Convent.), Musculo-skel. (Superfic.), Wound (Cavernous/Non-Cavernous), Gynecology, Cardiac Adult, Cardiac Pediatric, Trans-esophageal (card.), Peripheral vessel, Endoscopy clinical applications.

Where it was distributed

US Nationwide distribution in the state of TX.

Nationwide Texas

Questions about this recall

Why was it recalled?

Arietta 850 software version 4.0.0., 4.0.1, and 4.0.2 has an error in the focus point and transducer aperture settings in the SWE function. When the affected software with SWE function is used in conjunction with the C252 probe, this error can result in out of specification MI/TI acoustic output. The MI/TI acoustic output is higher than regulatory limits.

Which lots are affected?

Asset Tag: U8AR0479 Arietta 850 software version 4.0.0., 4.0.1, and 4.0.2

Where was it sold?

US Nationwide distribution in the state of TX.

What should I do if I have it?

Stop using the device if the notice says to, and contact the manufacturer or your healthcare provider for the correction or replacement.

What does Class II mean?

Class II means the product may cause temporary or medically reversible health problems, or the probability of serious harm is remote.

Read the official FDA notice · Source record retrieved 26 Sep 2026. The FDA describes openFDA data as unvalidated; the official notice takes precedence. This page reports the record and gives no medical advice.

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