Cleared Traditional

K921950 - SURGICAL DYNAMICS DISCOGRAPHY SYSTEM (FDA 510(k) Clearance)

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

K921950 · Surgical Dynamics, Inc. · General Hospital
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Jun 1993
Decision
406d
Days
Class 2
Risk

K921950 is an FDA 510(k) clearance for the SURGICAL DYNAMICS DISCOGRAPHY SYSTEM. Classified as Needle, Hypodermic, Single Lumen (product code FMI), Class II - Special Controls.

Submitted by Surgical Dynamics, Inc. (Alameda, US). The FDA issued a Cleared decision on June 7, 1993 after a review of 406 days - an unusually long review period, suggesting complex equivalence evaluation.

This device falls under the General Hospital FDA review panel, regulated under 21 CFR 880.5570 - the FDA general hospital device framework. The Traditional 510(k) pathway establishes clearance through substantial equivalence to a legally marketed predicate device, without requiring clinical trial data.

Device pattern: High-complexity regulatory submission. Elevated predicate reliance profile. The extended review timeline suggests the FDA required additional documentation before confirming substantial equivalence - a pattern common in complex or first-of-kind General Hospital submissions.

View all Surgical Dynamics, Inc. devices

Submission Details

510(k) Number K921950 FDA.gov
FDA Decision Cleared Substantially Equivalent - De Novo Granted (SEKD)
Date Received April 27, 1992
Decision Date June 07, 1993
Days to Decision 406 days
Submission Type Traditional
Review Panel General Hospital (HO)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
278d slower than avg
Panel avg: 128d · This submission: 406d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code FMI Needle, Hypodermic, Single Lumen
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 880.5570
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 General Hospital devices follow this clearance model.

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All 688
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