CLASS II ONGOING Device recall · Reported 2 Oct 2024 · FDA Enforcement Report

Acuson Redwood 1.0 and 2.0 Diagnostic Ultrasound Systems recalled

Siemens Medical Solutions USA is recalling Acuson Redwood 1.0 and 2.0 Diagnostic Ultrasound Systems, distributed in 41 states. The recall was initiated on 15 Aug 2024 and the FDA has classified it as Class II.

Check your package

Lot, batch or date codes11503314, UDI-DI: 04056869251264: 1.0/Software VA10G and prior, 2.0/Software VA20K and prior
Quantity recalled1990

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-3216-2024
FDA event ID
95254
Recalling firm
Siemens Medical Solutions USA, Issaquah, WA
Classification
Class II
Status
Ongoing
Recall initiated
15 Aug 2024
FDA classified
24 Sep 2024
Reported
2 Oct 2024
Type
Voluntary: Firm initiated
Customers notified by
Letter
Reason category
Device Malfunction

Timeline

15 Aug 2024Recall initiated by company
24 Sep 2024Classified by FDA+40 days
2 Oct 2024Published in enforcement report+8 days

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

Reason for recall

If ultrasound systems with software, are changed from factory default to : 1) Milliliters per second (ml/sec, mL/sec) or 2) Milliliters per minute (ml/min, mL/min); then systems will perform incorrect unit conversion of liters to milliliters using multiplier 100 instead of 1000, resulting values 10x smaller than actual, which could contribute misdiagnosis or negatively influence patient management

Device recalls are issued when a component, software or design fault could cause the device to fail or give wrong readings. Many are corrections applied in the field rather than physical returns.

Product as listed by the FDA

ACUSON Redwood 1.0 and 2.0 Diagnostic Ultrasound Systems, REF: 11503314, with software

Where it was distributed

US: MS, WA, TX, NJ, GA, PN, NY, AL, MN, NE, IN, CT, CA, IL, TN, WI, ND, NM, AR, NC, PR, RI, WY, MD, FL, HI, AZ, SC, MO, OK, VA, ME, KS, MI, LA, IA, OH, SD, NH, KY, AL, OR, MA, GU. OUS: Afghanistan, Albania, Algeria, Andorra, Angola, Argentina, Armenia, Australia, Austria, Azerbaijan, Bahrain, Bangladesh, Belgium, Bolivia, Bosnia-Herzegovina, Botswana, Brazil, Brunei, Bulgaria, Cameroon, Canada, Chile, China, Colombia, Congo, the Democratic Republic of the, Costa Rica, C¿te dIvoire, Croatia, Cyprus, Czech Republic, Denmark, Dominican Republic, Ecuador, Egypt, El Salvador, Eritrea, Ethiopia, Faroe Islands, Fiji, Finland, France, French Guinea, French Polynesia, Georgia, Germany, Greece, Guatemala, Guernsey, Guyana, Honduras, Hong Kong, Hungary, India, Indonesia, Iran, Islamic Republic of, Iraq, Ireland, Israel, Italy, Japan, Jordan, Kazakhstan, Kosovo, Kuwait, Latvia, Lebanon, Libya, Liechtenstein LI B, Lithuania, Luxembourg, Macedonia, Malawi, Malaysia, Malta, Mexico, Moldova, Rep. of, Mongolia, Montenegro, Morocco, Myanmar, Namibia, Nepal, Netherlands, New Zealand, Nigeria, Norway, Oman, Pakistan, Panama, Papua New Guinea, Paraguay, Peru, Philippines, Poland, Portugal, Qatar, Republic Korea, Reunion, Romania, Ruanda, Russian Federation, San Marino, Saudi Arabia, Senegal, Serbia, Singapore, Slovakia, Slovenia, South Africa, Spain, Swaziland, Sweden, Switzerland, Taiwan, Tajikistan, Tanzania, Thailand, Trinidad,Tobago, Tunisia, Turkey, Uganda, Ukraine, United Arab Emirates, United Kingdom, Uzbekistan, Vietnam, Yemen, Zambia, Zimbabwe

AlabamaArkansasArizonaCaliforniaConnecticutFloridaGeorgiaHawaiiIowaIllinoisIndianaKansasKentuckyLouisianaMassachusettsMarylandMaineMichiganMinnesotaMissouri

Questions about this recall

Why was it recalled?

If ultrasound systems with software, are changed from factory default to : 1) Milliliters per second (ml/sec, mL/sec) or 2) Milliliters per minute (ml/min, mL/min); then systems will perform incorrect unit conversion of liters to milliliters using multiplier 100 instead of 1000, resulting values 10x smaller than actual, which could contribute misdiagnosis or negatively influence patient management

Which lots are affected?

11503314, UDI-DI: 04056869251264: 1.0/Software VA10G and prior, 2.0/Software VA20K and prior

Where was it sold?

US: MS, WA, TX, NJ, GA, PN, NY, AL, MN, NE, IN, CT, CA, IL, TN, WI, ND, NM, AR, NC, PR, RI, WY, MD, FL, HI, AZ, SC, MO, OK, VA, ME, KS, MI, LA, IA, OH, SD, NH, KY, AL, OR, MA, GU. OUS: Afghanistan, Albania, Algeria, Andorra, Angola, Argentina, Armenia, Australia, Austria, Azerbaijan, Bahrain, Bangladesh, Belgium, Bolivia, Bosnia-Herzegovina, Botswana, Brazil, Brunei, Bulgaria, Cameroon, Canada, Chile, China, Colombia, Congo, the Democratic Republic of the, Costa Rica, C¿te dIvoire, Croatia, Cyprus, Czech Republic, Denmark, Dominican Republic, Ecuador, Egypt, El Salvador, Eritrea, Ethiopia, Faroe Islands, Fiji, Finland, France, French Guinea, French Polynesia, Georgia, Germany, Greece, Guatemala, Guernsey, Guyana, Honduras, Hong Kong, Hungary, India, Indonesia, Iran, Islamic Republic of, Iraq, Ireland, Israel, Italy, Japan, Jordan, Kazakhstan, Kosovo, Kuwait, Latvia, Lebanon, Libya, Liechtenstein LI B, Lithuania, Luxembourg, Macedonia, Malawi, Malaysia, Malta, Mexico, Moldova, Rep. of, Mongolia, Montenegro, Morocco, Myanmar, Namibia, Nepal, Netherlands, New Zealand, Nigeria, Norway, Oman, Pakistan, Panama, Papua New Guinea, Paraguay, Peru, Philippines, Poland, Portugal, Qatar, Republic Korea, Reunion, Romania, Ruanda, Russian Federation, San Marino, Saudi Arabia, Senegal, Serbia, Singapore, Slovakia, Slovenia, South Africa, Spain, Swaziland, Sweden, Switzerland, Taiwan, Tajikistan, Tanzania, Thailand, Trinidad,Tobago, Tunisia, Turkey, Uganda, Ukraine, United Arab Emirates, United Kingdom, Uzbekistan, Vietnam, Yemen, Zambia, Zimbabwe

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.

Other products in this recall event

2 other products · FDA event 95254

This product is part of a recall event; the main page for the event is Acuson Juniper 1.0, 1.5, 2.0, 2.5 Diagnostic Ultrasound Systems recalled.

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