Cleared Special

ROSA Hip System (K231162) - FDA 510(k) Clearance

Class II Radiology device cleared through the Special 510(k) pathway - typically does not require clinical trials.

K231162 · Orthosoft Inc. (d/b/a) Zimmer CAS · Radiology device
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Optimized for regulatory review, auditing and printing
May 2023
Decision
29d
Days
Class 2
Risk

K231162 is an FDA 510(k) clearance for the ROSA Hip System. Classified as System, Image Processing, Radiological within the LLZ classification (a category encompassing advanced image processing and PACS-adjacent software), Class II - Special Controls.

Submitted by Orthosoft Inc. (d/b/a) Zimmer CAS (Montreal, CA). The FDA issued a Cleared decision on May 23, 2023 after a review of 29 days - a notably fast clearance cycle.

This device falls under the Radiology FDA review panel, regulated under 21 CFR 892.2050 - the FDA radiology and imaging software oversight framework. As a Special 510(k), this submission covers a manufacturer modification to an existing cleared device rather than a new device introduction.

Device pattern: Incremental AI imaging tool. Low regulatory complexity profile. Overall, this clearance reflects a predicate-aligned approval typical of modern AI radiology extensions - not a novel clinical breakthrough, but a validated iteration within an established regulatory category.

View all Orthosoft Inc. (d/b/a) Zimmer CAS devices

Submission Details

510(k) Number K231162 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received April 24, 2023
Decision Date May 23, 2023
Days to Decision 29 days
Submission Type Special
Review Panel Radiology (RA)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
78d faster than avg
Panel avg: 107d · This submission: 29d
Pathway characteristics
Modification to existing cleared device.

Device Classification

Product Code LLZ System, Image Processing, Radiological
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 892.2050
What this classification means

Class II devices require demonstration of substantial equivalence to a legally marketed predicate device. This pathway does not require clinical trials - it relies on engineering equivalence and performance data. Most Radiology devices follow this clearance model.

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