# Major Recall Alert: Avalon US Transducer Recalled Due to Inaccurate Fetal Heart Rate (FHR) Readings During Twin or Triplet Monitoring
A critical recall has been issued for the latest version of the wired Avalon ultrasound transducers (Model 867246) due to potential fetal heart rate (FHR) inaccuracies when monitoring multiple pregnancies, such as twins or triplets. This issue arises especially when the physiological signal (the echo from the fetal heart) is absent or very weak, such as in the early weeks of pregnancy. The faulty transducers tend to interfere with each other, generating artificial FHR measurements around 180 bpm. This recall, announced on March 10, 2025, could significantly impact women carrying multiple fetuses who depend on accurate monitoring.
Below, we break down why this recall matters, the specifics of this issue, and what steps to take next.
## Why This Recall is Important
Pregnancy monitoring is a cornerstone of prenatal care, especially for women carrying twins or triplets who face increased risks of complications. The Avalon US Transducer plays a critical role in tracking the health of fetuses during pregnancy.
However, due to a software issue found in version l.01.04 of the wired transducer, inaccurate fetal heart rate readings may occur. This is particularly concerning during:
- **Early stages of pregnancy:** When the fetal signals are naturally weak or absent.
- **Monitoring for multiple fetuses (twins/triplets):** The transducers can interfere with each other, causing false readings of about 180 bpm.
Inaccurate fetal heart rate data can lead to improper medical interventions or missed warning signs of fetal distress, putting both babies and mothers at risk.
## Details of the Recall
### Key Information About the Issue:
- **Product Affected**: Avalon US Transducer (Model 867246).
- **Software Version**: Wired ultrasound transducers with software version l.01.04.
- **Risk Population**: Women with multiple gestations (twins or triplets).
- **Primary Concern**: Artificial FHR readings at approximately 180 bpm due to device interference during situations where physiological fetal signals are weak or absent.
- **Recall Start Date**: March 10, 2025.
### Why It Happens:
When two or more wired transducers (used for multiple fetus monitoring) are employed, a technical malfunction in software version l.01.04 triggers interference, causing false FHR measurements. This malfunction can mask the actual heart rate, potentially delaying necessary medical responses.
For more official information, visit the [Health Canada Recall Page](https://recalls-rappels.canada.ca/en/alert-recall/avalon-us-transducer).
## What You Should Do
To ensure the safety of your pregnancy, here’s what you can do:
1. **Stop Using Affected Products**: If you are currently using the Avalon US Transducer (Model 867246) with software version l.01.04, pause use immediately, especially during twin or triplet monitoring.
2. **Contact Your Healthcare Provider**: Speak with your healthcare provider or clinic to confirm whether you are using this specific device. They may provide alternatives or additional monitoring methods.
3. **Reach Out to the Manufacturer**: For further guidance, technical support, or a potential replacement, contact the manufacturer directly.
4. **Report Adverse Effects**: If you’ve experienced issues, consider reporting them through Health Canada’s adverse event database.
Stay vigilant and always consult your physician when in doubt about monitoring equipment.
## Stay Safe – Get Instant Recall Alerts
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- **Get instant alerts** for recalls in all categories.
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### Final Thoughts
This Avalon US Transducer recall highlights the importance of reliable medical devices during pregnancy. If you or someone you know is pregnant with twins or triplets, take immediate action—speak to a healthcare provider and ensure you’re using safe monitoring equipment.
For official details about this recall, visit the [Health Canada Recall Notice](https://recalls-rappels.canada.ca/en/alert-recall/avalon-us-transducer). Stay proactive, and don’t forget to download the Recall App to ensure you’re always informed of potential risks.