Cleared Traditional

K861431 - THERAPAX HT 150T

K861431 is an FDA 510(k) clearance for THERAPAX HT 150T, manufactured by Old Delft Corp. of America. The device is a Class 2 Radiology device with product code JAD cleared through the Traditional 510(k) pathway after a 35-day FDA review.

K861431 · Old Delft Corp. of America · Radiology device
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May 1986
Decision
35d
Days
Class 2
Risk

K861431 is an FDA 510(k) clearance for the THERAPAX HT 150T. Classified as System, Therapeutic, X-ray (product code JAD), Class II - Special Controls.

Submitted by Old Delft Corp. of America (Fairfax, US). The FDA issued a Cleared decision on May 21, 1986 after a review of 35 days - a notably fast clearance cycle.

This device falls under the Radiology FDA review panel, regulated under 21 CFR 892.5900 - 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 Old Delft Corp. of America devices

FDA 510(k) Submission Details - K861431

510(k) Number K861431 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received April 16, 1986
Decision Date May 21, 1986
Days to Decision 35 days
Submission Type Traditional
Review Panel Radiology (RA)
Summary -
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
72d faster than avg
Panel avg: 107d · This submission: 35d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

JAD Device Classification - Class 2, Special Controls

Product Code JAD System, Therapeutic, X-ray
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 892.5900
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 - JAD System, Therapeutic, X-ray

All 41
Devices cleared under the same product code (JAD) and FDA review panel - the closest regulatory comparables to K861431.
INSTA-FLO
K935209 · Medtec, Inc. · Dec 1993
COMPUTERIZED TOMOGRAPHY X-RAY SYSTEM OPTION
K903377 · Siemens Medical Solutions USA, Inc. · Sep 1990
CMS RECORD AND VERIFY SYSTEM
K882484 · Computerized Medical Systems, Inc. · Dec 1988
INDEPENDENT JAW MODE OPTION FOR VARIAN CLINAC 4/10
K844424 · Varian Assoc., Inc. · Feb 1985
RTP-5100-5200-5300 & 5400
K833560 · Adac Laboratories · Dec 1983
RTP-5000
K813439 · Adac Laboratories · Jan 1982