RaySearch Recalls Radiation Therapy Planning Software Due to Dose Calculation Errors
RaySearch Laboratories AB is recalling RayStation and RayPlan software versions because electron Monte Carlo dose calculations may be incorrect when using a very large number of histories.
What this means for you
Real risk of harm even if no illness or injury has been reported yet. Stop using the product and follow the agency's guidance.
Our severity reasoning: The recall involves a medical device software defect that could lead to incorrect radiation dose calculations, posing a risk of harm to patients, but no specific injuries or illnesses are reported in the source text.
Plain-English summary
RaySearch Laboratories AB is recalling specific versions of RayStation and RayPlan software, which are designed for treatment planning and analysis of radiation therapy. The recall involves 744 units distributed nationwide in the United States.
The recall was initiated because the software may produce incorrect dose calculations when calculating electron Monte Carlo dose with a very large number of histories. This defect could affect the accuracy of radiation therapy treatment plans.
Healthcare providers and users of the affected software versions should contact RaySearch Laboratories AB for further instructions on how to address the issue. The affected software versions include specific releases of RayStation 3.5 through 6.2 and RayPlan 1 and 2.
The recalled product
- Product
- RayStation 3.5, RayStation 4.0, RayStation 4.5, RayStation 4.7, RayStation 5, RayStation 6, RayPlan 1 (RayStation 4.9) and RayPlan 2 (RayStation 6) . Intended Use: software system designed for treatment planning and analysis of radiation therapy
- Manufacturer
- RAYSEARCH LABORATORIES AB
- Hazard
- Affected units
- 744
Is your product affected?
Check your packaging against the codes below. If any of them match, the product is part of this recall.
Lot numbers (20)
- Software versions: 3.5.0.16
- 3.5.1.6
- 4.0.0.14
- 4.0.1.4
- 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
- 4.9.0.42
- 5.0.0.37
- 5.0.1.11
- 5.0.2.35
- 5.0.3.17
Distribution
Distributed nationwide across the United States.
Related recalls
Same manufacturer · RAYSEARCH LABORATORIES AB
See all →- HighRayCare 2024A SP1 Oncology Information System Software Recall
FDA (Devices) · 2026-07-08
- HighRayCare 2024A SP4 Oncology System Beam Set Delivery Note Data Loss
FDA (Devices) · 2026-07-08
- HighRayStation 2024A treatment planning recalled over dose that fails to invalidate
FDA (Devices) · 2026-01-28
- HighRayStation 2023B and 2024A recalled over dose that fails to invalidate
FDA (Devices) · 2026-01-28
- HighRayStation v2025 treatment planning recalled over dose that fails to invalidate
FDA (Devices) · 2026-01-28
Same hazard · dose calculation error
See all →- HighRadiation Therapy Planning System Density Calculation Inconsistency in RayStation
FDA (Devices) · 2025-02-26
- HighRayStation radiation therapy planning software density uncertainty calculation inconsistency
FDA (Devices) · 2025-02-26
- HighMedical device recall: RayStation radiation therapy software dose calculation inconsistency
FDA (Devices) · 2025-02-26
- HighRayStation Radiation Therapy Planning Software Recall for Density Calculation Inconsistency
FDA (Devices) · 2025-02-26
- HighRadiation Therapy Planning Software Correction for Density Uncertainty in Dose Calculations
FDA (Devices) · 2025-02-26