Cleared Traditional

K991652 - HIGH ENDS GRADIENTS/MAGNETOM SYMPHONY SYSTEM

K991652 is an FDA 510(k) clearance for HIGH ENDS GRADIENTS/MAGNETOM SYMPHONY S..., manufactured by Siemens Corp.. The device is a Class 2 Radiology device with product code LNH cleared through the Traditional 510(k) pathway after a 82-day FDA review.

K991652 · Siemens Corp. · Radiology device
Download Printable Device Report (PDF)
Optimized for regulatory review, auditing and printing
Aug 1999
Decision
82d
Days
Class 2
Risk

K991652 is an FDA 510(k) clearance for the HIGH ENDS GRADIENTS/MAGNETOM SYMPHONY SYSTEM. Classified as System, Nuclear Magnetic Resonance Imaging (product code LNH), Class II - Special Controls.

Submitted by Siemens Corp. (Iselin, US). The FDA issued a Cleared decision on August 3, 1999 after a review of 82 days - a notably fast clearance cycle.

This device falls under the Radiology FDA review panel, regulated under 21 CFR 892.1000 - 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 Siemens Corp. devices

FDA 510(k) Submission Details - K991652

510(k) Number K991652 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received May 13, 1999
Decision Date August 03, 1999
Days to Decision 82 days
Submission Type Traditional
Review Panel Radiology (RA)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Combination Product No
PCCP Authorized No
Regulatory Context
Review time vs. panel average
25d faster than avg
Panel avg: 107d · This submission: 82d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

LNH Device Classification - Class 2, Special Controls

Product Code LNH System, Nuclear Magnetic Resonance Imaging
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 892.1000
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 - LNH System, Nuclear Magnetic Resonance Imaging

All 996
Devices cleared under the same product code (LNH) and FDA review panel - the closest regulatory comparables to K991652.
MRGP OPTICAL TRACKING UNIT
K991943 · Philips Medical Systems (Cleveland), Inc. · Aug 1999
IPASS BOLUS TRACKING
K992412 · Philips Medical Systems (Cleveland), Inc. · Aug 1999
DYNAWELL OR DYNAWELL
K992120 · Ekeroth Quality AB · Aug 1999
NORMA 10
K991243 · Odin Technologies , Ltd. · Jun 1999
E-SCAN
K990968 · Biosound Esaote, Inc. · May 1999
EXCELART
K990620 · Toshiba America Mri, Inc. · May 1999