Cleared Traditional

K954547 - CH-502A & CH520B DIGITAL FINGER SPHYGMOMANOMETER

K954547 is an FDA 510(k) clearance for CH-502A & CH520B DIGITAL FINGER SPHYGMO..., manufactured by Citizen Watch Co., Ltd.. The device is a Class 2 Cardiovascular device with product code DXN cleared through the Traditional 510(k) pathway after a 550-day FDA review.

K954547 · Citizen Watch Co., Ltd. · Cardiovascular device
Download Printable Device Report (PDF)
Optimized for regulatory review, auditing and printing
Apr 1997
Decision
550d
Days
Class 2
Risk

K954547 is an FDA 510(k) clearance for the CH-502A & CH520B DIGITAL FINGER SPHYGMOMANOMETER. 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 1, 1997 after a review of 550 days - an unusually long review period, suggesting complex equivalence evaluation.

This device falls under the Cardiovascular FDA review panel, regulated under 21 CFR 870.1130 - the FDA cardiovascular device 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: 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 Cardiovascular submissions.

View all Citizen Watch Co., Ltd. devices

FDA 510(k) Submission Details - K954547

510(k) Number K954547 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received September 29, 1995
Decision Date April 01, 1997
Days to Decision 550 days
Submission Type Traditional
Review Panel Cardiovascular (CV)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Combination Product No
PCCP Authorized No
Regulatory Context
Review time vs. panel average
425d slower than avg
Panel avg: 125d · This submission: 550d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

DXN Device Classification - Class 2, Special Controls

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 845
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