Cleared Traditional

CAIRD TECHNOLOGY SPIROMETER (K971336) - FDA 510(k) Clearance

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

K971336 · Caird Technology · Anesthesiology device
Download Printable Device Report (PDF)
Optimized for regulatory review, auditing and printing
Dec 1998
Decision
600d
Days
Class 2
Risk

K971336 is an FDA 510(k) clearance for the CAIRD TECHNOLOGY SPIROMETER. Classified as Spirometer, Diagnostic (product code BZG), Class II - Special Controls.

Submitted by Caird Technology (Columbia, US). The FDA issued a Cleared decision on December 1, 1998 after a review of 600 days - an unusually long review period, suggesting complex equivalence evaluation.

This device falls under the Anesthesiology FDA review panel, regulated under 21 CFR 868.1840 - the FDA anesthesiology and respiratory 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 Anesthesiology submissions.

View all Caird Technology devices

Submission Details

510(k) Number K971336 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received April 10, 1997
Decision Date December 01, 1998
Days to Decision 600 days
Submission Type Traditional
Review Panel Anesthesiology (AN)
Summary Statement
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
460d slower than avg
Panel avg: 140d · This submission: 600d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code BZG Spirometer, Diagnostic
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 868.1840
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 Anesthesiology devices follow this clearance model.

Regulatory Peers - BZG Spirometer, Diagnostic

All 24
Devices cleared under the same product code (BZG) and FDA review panel - the closest regulatory comparables to K971336.
Pulmonx Chartis Tablet Console
K180011 · Pulmonx Corporation · Jul 2018
WELCH ALLYN CARDIOPERFECT WORKSTATION SOFTWARE (CPWS) V 1.62
K082478 · Welch Allyn, Inc. · Mar 2009
WELCH ALLYN CARDIOPERFECT WORKSTATION VERSION 1.5.0 SOFTWARE
K052158 · Welch Allyn, Inc. · Sep 2005
PNEUMOCHECK W/PRINTER/CHARGER AND ACCESSORIES
K895253 · Welch Allyn, Inc. · Nov 1989
BREATH METER
K810437 · Fred Sammons, Inc. · May 1981