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    Medical devicesUpdated Jan 3, 2026Signa ProductsOfficial source

    Signa Products recall in Canada: Cryogen ventilation issue

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    In plain language

    This recall involves Signa MRI systems sold in Canada. They are being recalled because the cryogen ventilation system may not meet requirements, which could lead to oxygen deprivation in the room during a magnet quench. Contact the manufacturer for more information.

    What to do

    • Contact the manufacturer if you require additional information.

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    Affected products

    • Signa Hde 1.5t Mri System - Main Unit

      Model: S7505KY

      Lot: 514747MRI, 604202MR, 514341MRI, 604520MR2

    • Signa Artist

      Model: SIGNA ARTIST

      Lot: More than 10 numbers, contact manufacturer.

    • Signa Explorer

      Model: 6433266-1

      Lot: 780964EXP, 604988MRI, 519824MR, 416431MR, 514765MRI, 604941MR1, 604822MRTS, 418691MR, 250782MR

    • Optima Mr360 - Main Unit

      Model: 5312366 (M50002BB), 5433265-1

      Lot: 403541MR, 604985MR1, 450670MR2

    • Signa Voyager

      Model: SIGNA VOYAGER

      Lot: 4964226MR81, 450688MR1, 780679MRV, 780699MRV, 780679AMSTMOBL, 306664MR1

    Why this matters

    Oxygen deprivation risk

    Do I have this product?

    This recall only applies to specific products. Follow the steps below to check.

    1. 1

      Check the product name

      Make sure your product name matches one of the affected products listed above.

    2. 2

      Check the lot number

      Lot numbers identify specific production batches.

      Affected lots: 403541MR, 604985MR1, 450670MR2, 4964226MR81, 450688MR1, 780679MRV, 780699MRV, 780679AMSTMOBL, 306664MR1, 514747MRI, 604202MR, 514341MRI, 604520MR2, 780964EXP, 604988MRI, 519824MR, 416431MR, 514765MRI, 604941MR1, 604822MRTS, 418691MR, 250782MR, More than 10 numbers, contact manufacturer.

    3. 3

      Check the model number

      Model numbers are typically on the product label or packaging.

      Affected models: 5312366 (M50002BB), 5433265-1, 6433266-1, S7505KY, SIGNA ARTIST, SIGNA VOYAGER

    If your product matches one or more of the details above, it may be affected by this recall.

    If your product does not match these details, it is not affected by this recall.

    When in doubt, always check the official notice.

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    Frequently Asked Questions

    Why was this product recalled?

    Oxygen deprivation risk

    What should consumers do?

    Contact the manufacturer if you require additional information.

    Where was the product sold?

    This product was sold in Canada. For specific retailers or distribution areas, please check the official recall notice linked on this page.

    Is there a health risk?

    Yes, there may be a health risk. Oxygen deprivation risk

    When was this product recalled?

    This product was recalled on January 18, 2022.

    Is the Signa Products brand affected by this recall?

    Yes, Signa Products products are affected by this recall. This recall involves Signa MRI systems sold in Canada. They are being recalled because the cryogen ventilation system may not meet requirements, which could lead to oxygen deprivation in the room during a magnet quench. Contact the manufacturer for more information.