Cleared Traditional

MODEL DS-504 DYNASCOPE PATIENT MONITOR (K893405) - FDA 510(k) Clearance

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

K893405 · Fukuda Denshi USA, Inc. · Cardiovascular device
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Oct 1989
Decision
153d
Days
Class 2
Risk

K893405 is an FDA 510(k) clearance for the MODEL DS-504 DYNASCOPE PATIENT MONITOR. Classified as Monitor, Cardiac (incl. Cardiotachometer & Rate Alarm) (product code DRT), Class II - Special Controls.

Submitted by Fukuda Denshi USA, Inc. (Redmond, US). The FDA issued a Cleared decision on October 2, 1989 after a review of 153 days - an extended review cycle.

This device falls under the Cardiovascular FDA review panel, regulated under 21 CFR 870.2300 - 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: Standard predicate-based submission. Standard predicate reliance. This clearance follows a standard predicate-based equivalence path within the Cardiovascular review framework, consistent with the majority of Class II 510(k) submissions.

View all Fukuda Denshi USA, Inc. devices

Submission Details

510(k) Number K893405 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received May 02, 1989
Decision Date October 02, 1989
Days to Decision 153 days
Submission Type Traditional
Review Panel Cardiovascular (CV)
Summary -
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
28d slower than avg
Panel avg: 125d · This submission: 153d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code DRT Monitor, Cardiac (incl. Cardiotachometer & Rate Alarm)
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 870.2300
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 - DRT Monitor, Cardiac (incl. Cardiotachometer & Rate Alarm)

All 42
Devices cleared under the same product code (DRT) and FDA review panel - the closest regulatory comparables to K893405.
HEWLETT-PACKARD CARDIAC CATHETERIZATION RECORDING
K921194 · Hewlett-Packard Co. · Nov 1992
HEWLETT-PACKARD MODELS M1400A, M1402A & M1401A
K911139 · Hewlett-Packard Co. · Jun 1991
MODEL M1175A/M1176A WITH ST SEGMENT MONITORING
K900032 · Hewlett-Packard Co. · Apr 1990
SIRECUST 341 AND 341R
K854881 · Siemens Medical Solutions USA, Inc. · Mar 1986
MODEL 78353B
K842817 · Hewlett-Packard Co. · Jun 1985
SIEMENS SIRECUST 404N NEONATAL MONITOR
K844187 · Siemens Medical Solutions USA, Inc. · Apr 1985