RecallRadar

FDA Device recall Z-0721-2017

RayStation 4.0, 4.5, 4.7 and 5.0

On 2016-12-14 the FDA classified a Class II recall of RayStation 4.0, 4.5, 4.7 and 5.0 by Raysearch Laboratories Ab, citing software anomaly; an issue was found with the proton Pencil Beam Scanning (PBS) dose calculation in RayStation 4.0, 4.5, 4.7 and 5.0. For treatment plans with a combination of ran….

Read the official FDA Device notice

AgencyFDA Device
Recall numberZ-0721-2017
ClassificationClass II
Statusterminated
Initiated2016-11-09
Published2016-12-14
Last updated2026-09-13 11:54 UTC
CompanyRaysearch Laboratories Ab
DistributionUS

Product

RayStation 4.0, 4.5, 4.7 and 5.0; Radiation Therapy Treatment Planning System Product Usage: RayStation is a software system designed for treatment planning and analysis of radiation therapy. The treatment plans provide treatment unit set-up parameters and estimates of dose distributions expected during the proposed treatment, and may be used to administer treatments after review and approval by the intended user. The system functionality can be configured based on user needs. The intended users of RayStation shall be clinically qualified radiation therapy staff trained in using the system.

Reason

Software anomaly; an issue was found with the proton Pencil Beam Scanning (PBS) dose calculation in RayStation 4.0, 4.5, 4.7 and 5.0. For treatment plans with a combination of range shifter, large air gap and beams that enter the patient surface at an oblique angle, the dose calculation accuracy may be less than expected.

Identifiers

code_info
Build numbers: 4.0.2.9, 4.0.3.4, 4.5.0.19, 4.5.1.14, 4.5.2.7, 4.7.0.15, 4.7.1.10, 4.7.2.5, 4.7.3.13, …Build numbers: 4.0.2.9, 4.0.3.4, 4.5.0.19, 4.5.1.14, 4.5.2.7, 4.7.0.15, 4.7.1.10, 4.7.2.5, 4.7.3.13, 4.7.4.4, 4.7.5.4, 5.0.0.37, 5.0.1.11 or 5.0.2.35

Status history

No status changes recorded since RecallRadar first saw this recall on 2026-09-13 11:54 UTC. Current status: terminated.

Source

Official record: https://api.fda.gov/device/enforcement.json?search=recall_number:%22Z-0721-2017%22

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