Cleared Traditional

K840522 - RECOMED BLOOD-FLOW METER H236-052-02

K840522 is an FDA 510(k) clearance for RECOMED BLOOD-FLOW METER H236-052-02, manufactured by Litton Medical Electronics. The device is a Class 2 Cardiovascular device with product code DPW cleared through the Traditional 510(k) pathway after a 464-day FDA review.

K840522 · Litton Medical Electronics · Cardiovascular device
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May 1985
Decision
464d
Days
Class 2
Risk

K840522 is an FDA 510(k) clearance for the RECOMED BLOOD-FLOW METER H236-052-02. Classified as Flowmeter, Blood, Cardiovascular (product code DPW), Class II - Special Controls.

Submitted by Litton Medical Electronics (Elk Grove Village, US). The FDA issued a Cleared decision on May 16, 1985 after a review of 464 days - an unusually long review period, suggesting complex equivalence evaluation.

This device falls under the Cardiovascular FDA review panel, regulated under 21 CFR 870.2100 - 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 Litton Medical Electronics devices

FDA 510(k) Submission Details - K840522

510(k) Number K840522 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received February 07, 1984
Decision Date May 16, 1985
Days to Decision 464 days
Submission Type Traditional
Review Panel Cardiovascular (CV)
Summary -
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
339d slower than avg
Panel avg: 125d · This submission: 464d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

DPW Device Classification - Class 2, Special Controls

Product Code DPW Flowmeter, Blood, Cardiovascular
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 870.2100
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 - DPW Flowmeter, Blood, Cardiovascular

All 63
Devices cleared under the same product code (DPW) and FDA review panel - the closest regulatory comparables to K840522.
HIGH VELOCITY CW DOPPLER SYSTEM
K862841 · Biosound, Inc. · Nov 1986
MILLAR PULSED DOPPLER VELOCIMETER
K860766 · Millar Instruments, Inc. · Jul 1986
TECA TC2-64 TRANSCRANIAL DOPPLER
K850137 · Teca, Inc. · Aug 1985
PERIFLUX PF-2
K844631 · Medex, Inc. · Feb 1985
XOMED PATENCY MONITOR
K821373 · Xomed, Inc. · Jul 1982
NIHON KOHDEN BLOOD FLOWMETERS #MFV-1100
K820742 · Nihon Kohden America, Inc. · Apr 1982