Cleared Special

K984223 - BLOOD PRESSURE METER

K984223 is the FDA 510(k) clearance for BLOOD PRESSURE METER by Citizen Watch Co., Ltd.. It is a Class 2 Cardiovascular device (product code DXN) cleared through the Special 510(k) pathway after a 154-day FDA review.

K984223 · Citizen Watch Co., Ltd. · Cardiovascular device
Download Printable Device Report (PDF)
Optimized for regulatory review, auditing and printing
Apr 1999
Decision
154d
Days
Class 2
Risk

K984223 is an FDA 510(k) clearance for the BLOOD PRESSURE METER, MODELS CH-491, CH-481, CH-471. Classified as System, Measurement, Blood-pressure, Non-invasive (product code DXN), Class II - Special Controls.

Submitted by Citizen Watch Co., Ltd. (Washington, US). The FDA issued a Cleared decision on April 28, 1999 after a review of 154 days - an extended review cycle.

This device falls under the Cardiovascular FDA review panel, regulated under 21 CFR 870.1130 - the FDA cardiovascular device oversight framework. As a Special 510(k), this submission covers a manufacturer modification to an existing cleared device rather than a new device introduction.

Device pattern: Iterative device modification. Standard predicate reliance. This Special 510(k) clearance confirms that the manufacturer's modifications remained within the established regulatory envelope of the original cleared device.

View all Citizen Watch Co., Ltd. devices

Submission Details

510(k) Number K984223 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received November 25, 1998
Decision Date April 28, 1999
Days to Decision 154 days
Submission Type Special
Review Panel Cardiovascular (CV)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
29d slower than avg
Panel avg: 125d · This submission: 154d
Pathway characteristics
Modification to existing cleared device.

Device Classification

Product Code DXN System, Measurement, Blood-pressure, Non-invasive
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 870.1130
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 Cardiovascular devices follow this clearance model.

Regulatory Peers - DXN System, Measurement, Blood-pressure, Non-invasive

All 517
Devices cleared under the same product code (DXN) and FDA review panel - the closest regulatory comparables to K984223.
HL148 & HL168
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K983575 · Datascope Corp. · May 1999
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K982641 · Johnson & Johnson Medical, Inc. · Mar 1999
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K982481 · A&D Engineering, Inc. · Sep 1998
A&D UB-322 WATCH STYLE WRIST DIGITAL BLOOD PRESSURE MONITOR
K980824 · A&D Engineering, Inc. · Mar 1998