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Limbus Contour

Limbus Ai Inc. · Model 1.5.0 · UDI-DI 00628011382153

LLZ Prescription

510(k) clearances

19,647

Adverse events (41 deaths)

554

Recalls

633

Facilities

Description

Limbus Contour is a stand-alone software medical device. It is a single purposes cross-platform application for automatic contouring (segmentation) of CT/MRI DICOM images via pre-trained and expert curated machine learning models. The software is intended to be used by trained medical professionals to derive contours for input to radiation treatment planning. The Limbus Contour software segments normal tissues using machine learning models and further post-processing on machine learning model prediction outputs. Limbus Contour does not display or store DICOM images and relies on existing radiotherapy treatment planning systems (TPS) and DICOM image viewers for display and modification of generated segmentations. Limbus Contour interfaces with the user’s operating system file system (importing DICOM image .dcm files and exporting segmented DICOM RT-Structure Set .dcm files).

Recalls

Date	Firm	Reason
2026-07-22	Merge Healthcare, Inc.	Software issue may cause measurements to be displayed inaccurately.
2026-07-22	FUJIFILM Healthcare Americas Corporation	Software issue may cause the ruler measurement to be inaccurate.
2026-06-30	Merge Healthcare, Inc.	Merge Healthcare has identified a potential issue that may cause thumbnails from a previously opened patient study to be displayed in the Thumbnail Bar while a different patient st
2026-06-30	Merge Healthcare, Inc.	Merge Healthcare has identified a potential issue that may cause thumbnails from a previously opened patient study to be displayed in the Thumbnail Bar while a different patient st
2026-06-19	Boston Scientific Corporation	Software anomaly occurs when a user adds one or more vials to the cart and subsequently returns to the Activity Calculator to modify one or more input. When a user modifies an inpu
2026-05-08	GE Medical Systems SCS	GE HealthCare has become aware of a context synchronization issue in AW Server 3.2 ext. 6.5. When a user selects a patient or exam in the AW Server Web Client worklist and launches
2026-03-19	PHILIPS MEDICAL SYSTEMS NEDERLAND B.V.	Potential safety issue involving the Mean Aneurysm Flow Amplitude (MAFA) ratio of AneurysmFlow (Interventional Tool). Philips has determined that the MAFA ratio does not provide re
2026-03-05	PHILIPS MEDICAL SYSTEMS NEDERLAND B.V.	Potential that mis-ordered frames in Vue Motion during dynamic cine runs may cause images frames to display out of sequence.
2026-01-30	GE Medical Systems, LLC	There is a potential cybersecurity vulnerability affecting certain versions of Centricity Universal Viewer. User login credentials may be exposed on the local client workstation, w
2026-01-30	GE Medical Systems, LLC	There is a potential cybersecurity vulnerability affecting certain versions of Centricity Universal Viewer. User login credentials may be exposed on the local client workstation, w

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Data compiled from public U.S. FDA sources (GUDID, 510(k)/PMA, MAUDE, recalls, establishment registration). Adverse-event reports are unverified and do not establish causation. Informational only — not medical, clinical, or regulatory advice.