510(k) Report

510(k) · Cleared

Cleared

Central Telemetry System, Model Wep-4200A Series

K040395510(k) TraditionalCleared Jun 1, 2004105-day reviewClass II21 CFR 870.1025

Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly, last Nov 3, 2026

Nihon Kohden America, Inc. · MHX Monitor, Physiological, Patient (With Arrhythmia Detection Or Alarms)

Cleared on Jun 1, 2004 as substantially equivalent to K945944 (Nihon Kohden America, Inc., 1995) and 1 other predicate after a 105-day review. Its family tree reaches back 1 generation to 1995.

Decided
Jun 1, 2004
Review
105 days
Class
Class II
Product code
MHX
Recalls
None
Predicates
2

Its longest line of descent runs back 1 generation to K945944 (1995). 2 ancestors in all. No later device cites it as a predicate yet.

Other ancestors, by year cleared 2000: 1 other ancestorK945944 · Nihon Kohden Wep-8430A Central Telemetry System · Nihon Kohden America, Inc. · 1995199619982000200220042006
Other ancestors, by generation 1 generation back: 1 other ancestor K945944 · Nihon Kohden Wep-8430A Central Telemetry System · Nihon Kohden America, Inc. · 19950
  1. Root · 1 generation backK945944 Nihon Kohden Wep-8430A Central Telemetry SystemNihon Kohden America, Inc. · 1995
  2. This deviceK040395 Central Telemetry System, Model Wep-4200A SeriesNihon Kohden America, Inc. · 2004
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−1K945944Nihon Kohden Wep-8430A Central Telemetry SystemNihon Kohden America, Inc.1995—
0 (this device)K040395Central Telemetry System, Model Wep-4200A SeriesNihon Kohden America, Inc.2004—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
200010
FIG. 1 — Lineage of K040395, 1995–2004Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

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Notable FDA decisions, review times and new Class I recalls. See an issue.

Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.

Planning a device in MHX? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.

Top candidate predicates for a new MHX device

  1. #1 K251702 IntelliVue Patient Monitor MX750; IntelliVue…score 23.0 · 40 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
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What was it cleared against? (2)

Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.

TypeNumberDeviceApplicantDecidedRecalls
*K945944Nihon Kohden Wep-8430A Central Telemetry System
Summary page 1
…rms per 21 CFR Part 870.1025, * The legally marketed equivalence: The predicate device is Nihon Kohden's Central Telemetry system, WEP-8430A, 510K: K945944, dated 11/27/95. All features available with the new WEP-4200 are also available on Nihon Kohden BSM-4104A, 510K: K001693…
Nihon Kohden America, Inc.1995—
*K001693Life Scope P, Model BSM-4100 Series
Summary page 1
…Telemetry system, WEP-8430A, 510K: K945944, dated 11/27/95. All features available with the new WEP-4200 are also available on Nihon Kohden BSM-4104A, 510K: K001693 * A description of the device: The system provides for monitoring ECG, ST levels, VPC rate, arrhythmia events, SpO2…
Nihon Kohden America, Inc.2000—

What descends from it?

No later submission names this one as a predicate yet.

Has anything in its family been recalled? (0 Class I)

No FDA recall names this device.

No ancestor or descendant has a Class I recall.

What does this lineage say?

  • None of the 2 ancestors has a recall.

How does its category compare?

All MHX devices

MHX Monitor, Physiological, Patient (With Arrhythmia Detection Or Alarms): FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · MHX

8in 2025

2007: 152008: 162009: 132010: 202011: 122012: 162013: 212014: 132015: 142016: 132017: 142018: 112019: 72020: 112021: 52022: 152023: 82024: 52025: 82026 (partial year): 14
2007high 21 (2013) · low 5 (2021)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · MHX

192in 2025

2007: 96 days median2008: 58 days median2009: 57 days median2010: 90 days median2011: 81 days median2012: 88 days median2013: 120 days median2014: 248 days median2015: 203 days median2016: 149 days median2017: 134 days median2018: 203 days median2019: 243 days median2020: 196 days median2021: 195 days median2022: 189 days median2023: 229 days median2024: 181 days median2025: 192 days median2026 (partial year): 205 days median
2007high 248 (2014) · low 57 (2009)2026

Receipt to decision; years with fewer than 3 clearances left blank.

Recalls per year · MHX

21so far in 2026, the most since 2007

2007: 32008: 22009: 72010: 132011: 162012: 112013: 142014: 62015: 52016: 72017: 62018: 122019: 62022: 62023: 32024: 32025: 152026 (partial year): 21
2007high 21 (2026) · low 0 (2020)2026

Class I (0 since 2007) Class II/III not classified

Adverse event reports per year · MHX

3,761in 2025

2007: 1312008: 2322009: 3822010: 9552011: 9492012: 6762013: 1,9972014: 1,6092015: 1,2842016: 1,1052017: 1,1152018: 2,1572019: 1,4622020: 1,7142021: 2,4232022: 1,4702023: 2,2542024: 2,8142025: 3,761
2007high 3,761 (2025) · low 131 (2007)2025

MAUDE reports naming product code MHX, not matched to any one device; reports are not rates.

View these four charts as a table
YearDecisionsMedian 510(k) review, daysRecalls (Class I)MAUDE reports
200715963131
200816582232
200913577382
2010209013955
2011128116949
2012168811676
201321120141,997
20141324861,609
20151420351,284
20161314971,105
20171413461,115
201811203122,157
2019724361,462
20201119601,714
2021519502,423
20221518961,470
2023822932,254
2024518132,814
20258192153,761
20261420521—

What is it indicated for?

The device is comprised of transmitters and a receiver communicated via WMTS radio frequency. The series of device are intended to monitor, display and record physiological data to provide cardiac and vital signs monitoring within a medical facility. The device is intended to produce a visual record of the electrical signals produced by the heart and monitor the electrocardiogram to generate audible and/or visible alarms when an arrhythmia exists. The…

Read the full statement (177 words)

The device is comprised of transmitters and a receiver communicated via WMTS radio frequency. The series of device are intended to monitor, display and record physiological data to provide cardiac and vital signs monitoring within a medical facility. The device is intended to produce a visual record of the electrical signals produced by the heart and monitor the electrocardiogram to generate audible and/or visible alarms when an arrhythmia exists. The device is also intended to monitor patients' physiological data including heart rate, pulse rate, blood oxygen saturation (SpO2) noninvasive blood pressure (NIBP), body temperature respiratory rate and apnea. The device may generate an audible and/or visual alarm when a measured rate falls outside preset limits. This device receives physiological signals via radio frequency from the transmitters. The device has the capability of communicating with external devices, such as personal computers. Vital sign data can be sent to a central monitor through the network via network card.

The device will be available for use by medical personnel on patients within a medical facility including adults, children and infants.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K040395: Central Telemetry System, Model Wep-4200A Series.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K040395

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Record history
  • FDA decision record loaded May 2, 2026
  • Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
  • Lineage and recalls computed Nov 3, 2026
  • Page last updated Nov 3, 2026