Cleared Traditional

K861100 - ISO-THERMEX

K861100 is an FDA 510(k) clearance for ISO-THERMEX, manufactured by Columbus Instruments Intl. Corp.. The device is a Class 2 General Hospital device with product code FLL cleared through the Traditional 510(k) pathway after a 49-day FDA review.

K861100 · Columbus Instruments Intl. Corp. · General Hospital
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May 1986
Decision
49d
Days
Class 2
Risk

K861100 is an FDA 510(k) clearance for the ISO-THERMEX. Classified as Continuous Measurement Thermometer (product code FLL), Class II - Special Controls.

Submitted by Columbus Instruments Intl. Corp. (Columbus, US). The FDA issued a Cleared decision on May 12, 1986 after a review of 49 days - a notably fast clearance cycle.

This device falls under the General Hospital FDA review panel, regulated under 21 CFR 880.2910 - 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: 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 Columbus Instruments Intl. Corp. devices

FDA 510(k) Submission Details - K861100

510(k) Number K861100 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received March 24, 1986
Decision Date May 12, 1986
Days to Decision 49 days
Submission Type Traditional
Review Panel General Hospital (HO)
Summary -
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
80d faster than avg
Panel avg: 129d · This submission: 49d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

FLL Device Classification - Class 2, Special Controls

Product Code FLL Continuous Measurement Thermometer
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 880.2910
Definition A Continuous Measurement Thermometer Is A Clinical Electronic Thermometer Indicated To Measure The Body Or Skin Temperature Of A Person Continuously Or In Specified Intervals. Under This Regulation, This Product Code Represents Non-exempt Devices. For More Information, See 90 Fr 25889, Available At Https://www.govinfo.gov/content/pkg/fr-2025-06-18/pdf/2025-11207.pdf.
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.

Regulatory Peers - FLL Continuous Measurement Thermometer

All 566
Devices cleared under the same product code (FLL) and FDA review panel - the closest regulatory comparables to K861100.
ESOPHAGEAL RECTAL TEMPERATURE PROBE
K863646 · Respiratory Support Products, Inc. · Nov 1986
SURFACE SKIN TEMP PROBE W/THERMOCOUPLE TYPE T
K864195 · Respiratory Support Products, Inc. · Nov 1986
ESOPHAGEAL/RECTAL TEMPERATURE PROBE W/TYPE T
K864044 · Respiratory Support Products, Inc. · Nov 1986
IVAC MODEL 2080 ELECTRONIC THERMOMETER
K860436 · Y · Feb 1986
TMA TEMPERATURE MONITOR
K852825 · Ferguson Medical · Dec 1985
MON-A-THERM SUBCUTANEOUS TEMP. SENSOR
K853392 · Mon-A-Therm, Inc. · Nov 1985