510(k) Report

510(k) · Cleared

Cleared

Prefense Edns-9000 Series Nurse Central Station

K073550510(k) SpecialCleared Mar 28, 2008101-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 Mar 28, 2008 as substantially equivalent to K023475 (Nihon Kohden America, Inc., 2002) after a 101-day review. Its family tree reaches back 2 generations to 2000. 1 later device descends from it.

Decided
Mar 28, 2008
Review
101 days
Class
Class II
Product code
MHX
Recalls
None
Predicates
1

Its longest line of descent runs back 2 generations to K001433 (2000). 1 later device descends from it, 1 citing it directly.

Descendants, by year cleared 2010: 1 descendant clearedK001433 · CNS-9300 Series Central Station · Nihon Kohden America, Inc. · 2000K023475 · CNS-9700 Series Central Nurse Station and Accessories · Nihon Kohden America, Inc. · 2002 · recalled200020052010201520202025
  1. Root · 2 generations backK001433 CNS-9300 Series Central StationNihon Kohden America, Inc. · 2000
  2. 1 generation backK023475 CNS-9700 Series Central Nurse Station and AccessoriesNihon Kohden America, Inc. · 2002 · Recalled
  3. This deviceK073550 Prefense Edns-9000 Series Nurse Central StationNihon Kohden America, Inc. · 2008
  4. Descendant · cites it directly · 0 of its ownK102106 Nihon Khden Prefense Edns-9000 Series Central Nurse StationNihon Kohden Corp. · 2010

Most influential descendants

Showing 1 of 1 · See all
  • K102106Nihon Khden Prefense Edns-9000 Series Central Nurse StationNihon Kohden Corp. · 2010 · cites it directly0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−2K001433CNS-9300 Series Central StationNihon Kohden America, Inc.2000—
−1K023475CNS-9700 Series Central Nurse Station and AccessoriesNihon Kohden America, Inc.20021
0 (this device)K073550Prefense Edns-9000 Series Nurse Central StationNihon Kohden America, Inc.2008—
+1K102106Nihon Khden Prefense Edns-9000 Series Central Nurse StationNihon Kohden Corp.2010—

Descendants by year cleared

Year clearedDevicesWith a Class I recall
201010
FIG. 1 — Lineage of K073550, 2000–2010Source: 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? (1)

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
*K023475CNS-9700 Series Central Nurse Station and Accessories
Summary page 1
…iver per DRG. * The legally marketed equivalence: The predicate-marketed device is the CNS-9700 Series Central Nurse station and accessories per 5 10(k) K(023475, commercial distribution dated October 16, 2002. • A description of the device: The device is intended for use by…
Nihon Kohden America, Inc.20021

Also cleared against K023475: 1 other device →

What descends from it? (1)

1 later device cites it directly; ranked here by how many devices descend from each in turn.

NumberDeviceApplicantDecidedDescendants
K102106Nihon Khden Prefense Edns-9000 Series Central Nurse StationNihon Kohden Corp.20100

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?

  • The line of descent spans 8 years and passes through 1 company; a new generation was cleared every 5.4 years on median.
  • 1 of the 2 ancestors has a recall of any class.
  • Of its descendants, K102106 (Nihon Kohden Corp., 2010) has gone furthest, with 0 descendants of its own.
  • 1 other device also cites its predicate K023475.

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. 2008, this device’s year, is highlighted.

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 Prefense EDNS-9000 Series Central Nurse Station is intended for cardiac and vital signs monitoring for multiple patients. The device will display and record physiological data from telemetry receivers/transmitters and alarms when a measured parameter falls outside a preset limit or when an arrhythmia is detected by the telemetry unit.

This product will be available for use by medical personnel on all patient populations with a medical facility.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K073550: Prefense Edns-9000 Series Nurse Central Station.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K073550

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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