Cleared Traditional

K955774 - VARIS PORTALVISION (FDA 510(k) Clearance)

Class II Radiology device cleared through predicate-based substantial equivalence - typically does not require clinical trials.

K955774 · Varian Assoc., Inc. · Radiology device
Download Printable Device Report (PDF)
Optimized for regulatory review, auditing and printing
Mar 1996
Decision
85d
Days
Class 2
Risk

K955774 is an FDA 510(k) clearance for the VARIS PORTALVISION. Classified as Accelerator, Linear, Medical (product code IYE), Class II - Special Controls.

Submitted by Varian Assoc., Inc. (Palo Alto, US). The FDA issued a Cleared decision on March 15, 1996 after a review of 85 days - a notably fast clearance cycle.

This device falls under the Radiology FDA review panel, regulated under 21 CFR 892.5050 - the FDA radiology and imaging software oversight framework. The Traditional 510(k) pathway establishes clearance through substantial equivalence to a legally marketed predicate device, without requiring clinical trial data.

Device pattern: Fast-track predicate clearance. Standard predicate reliance. The short review cycle indicates strong predicate alignment - the FDA found sufficient equivalence without extended technical review.

View all Varian Assoc., Inc. devices

Submission Details

510(k) Number K955774 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received December 21, 1995
Decision Date March 15, 1996
Days to Decision 85 days
Submission Type Traditional
Review Panel Radiology (RA)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
22d faster than avg
Panel avg: 107d · This submission: 85d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code IYE Accelerator, Linear, Medical
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 892.5050
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.

Regulatory Peers - IYE Accelerator, Linear, Medical

All 730
Devices cleared under the same product code (IYE) and FDA review panel - the closest regulatory comparables to K955774.
VERIQA RT EPID 3D
K252258 · Ptw-Freiburg Physikalisch-Technische-Werkstaetten Dr. Pychla · Apr 2026
ClearCheck (RADCC V2.7)
K253962 · Radformation, Inc. · Apr 2026
AlignRT Plus (8.0)
K253012 · Vision Rt, Ltd. · Mar 2026
Halcyon, Ethos Radiotherapy System (5.0)
K252977 · Varian Medical Systems, Inc. · Jan 2026
EMLA (Elekta Evo)
K252188 · Elekta Solutions AB · Jan 2026
ExacTrac Dynamic (2.0.2)
K254010 · Brainlab SE · Jan 2026