Recall record at a glance
| Official record | Z-1899-2020 |
|---|---|
| Category | Medical Device Recalls |
| Classification | Class II |
| FDA record status | Terminated |
| Recalling firm | Varian Medical Systems, Inc. |
| Report date | May 13, 2020 |
| Recall initiation date | Aug 12, 2019 |
| Quantity | 151 units |
| Location | Palo Alto, CA, United States |
Official product description
Varian Multileaf Collimator [MLC]; Millenium Multileaf Collimator [52, 80, 120 leaf]; High Definition 120 Multileaf Collimator Model Number(s): product code: H54 and H56; MLC software version 8.5 - Product Usage: is intended to assist the clinician in the delivery of external beam radiation to defined target volumes during radiosurgery and radiotherapy while sparing surrounding normal tissue and critical organs from excess radiation.
Why the product was recalled
After a recent upgrade to the collimator software version 8.5, the firm became aware that the multi-leaf collimator leaves did not move during an arc treatment. The issue is related to a transient carriage primary- secondary interlock due to carriage fault on the MLC that immediately preceded the initiation of the arc treatment. The issue will occur only with MLC software version 8.5 and only affects conformal arc treatments, including VMAT and RapidArc. There have been no reports of adverse health consequences due to this issue.
Distribution information
Worldwide distribution - US Nationwide distribution including in the states of TN, FL, IN, PA, NV, WA, DC, CA, AL, IL, MD, VA, TX, MN, AR, GA, OR, MS, MO, NY, SC, DE, AZ, NH, MI, NC, OH, PA and OK. The country of Canada.
How to read the classification
FDA Class II indicates a situation in which use of or exposure to the product may cause temporary or medically reversible adverse health consequences, or where the probability of serious consequences is remote. The classification shown here comes from the FDA record.
Additional record details
Recall type: Voluntary: Firm initiated. Initial notification: Two or more of the following: Email, Fax, Letter, Press Release, Telephone, Visit.
What to do next
If you believe you have the recalled product, use the recall number and firm information above to confirm the official notice and follow the instructions issued by the FDA, recalling firm, retailer or product manufacturer. For drugs and medical devices, decisions about treatment or medical care should be discussed with a qualified health professional.
About this record
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