510(k) Report

510(k) · Cleared

Cleared

Celsi Warmer

K242964510(k) TraditionalCleared Jun 20, 2025267-day reviewClass II21 CFR 870.5900

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

Hadleigh Health Technologies · DWJ System, Thermal Regulating

Cleared on Jun 20, 2025 as substantially equivalent to K152266 (Stryker Medical, 2016) after a 267-day review. Its family tree reaches back 5 generations to 1991.

Decided
Jun 20, 2025
Review
267 days
Class
Class II
Product code
DWJ
Recalls
None
Predicates
1

Its longest line of descent runs back 5 generations to K912051 (1991). 11 ancestors in all, the oldest K811742 (1981). No later device cites it as a predicate yet.

  1. Root · 5 generations backK912051 Medi-Therm (Mta-5900) & Detachable HosesGaymar Industries, Inc. · 1991 · Recalled
  2. 4 generations backK061023 Thermosuit SystemLife Recovery Systems Hd, LLC · 2006 · Recalled
  3. 3 generations backK070112 Rapidcool Patient Temperature Management SystemMedcool, Inc. · 2007
  4. 2 generations backK100585 Medi-Therm Hyper/Hypothermia System, Models MTA6900, MTA7900Gaymar Industries, Inc. · 2011
  5. 1 generation backK152266 Altrix Precision Temperature Management SystemStryker Medical · 2016 · Recalled
  6. This deviceK242964 Celsi WarmerHadleigh Health Technologies · 2025
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−5K912051Medi-Therm (Mta-5900) & Detachable HosesGaymar Industries, Inc.19912
−4K061023Thermosuit SystemLife Recovery Systems Hd, LLC20061
−3K070112Rapidcool Patient Temperature Management SystemMedcool, Inc.2007—
−2K100585Medi-Therm Hyper/Hypothermia System, Models MTA6900, MTA7900Gaymar Industries, Inc.2011—
−1K152266Altrix Precision Temperature Management SystemStryker Medical20161
0 (this device)K242964Celsi WarmerHadleigh Health Technologies2025—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
198110
200010
200110
200310
200710
200910
FIG. 1 — Lineage of K242964, 1991–2025Source: 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 DWJ? 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 DWJ device

  1. #1 K260278 ThermAffyx (TM) Patient Safety Systemscore 12.8 · 5 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
*K152266Altrix Precision Temperature Management System
Summary page 5
…cular PREDICATE DEVICE IDENTIFICATION The Celsi Warmer is substantially equivalent to the following predicate: 510(k) Number Predicate Device Name / Manufacturer K152266 Altrix Precision Temperature Management System / Stryker Medical DEVICE DESCRIPTIO…
Stryker Medical20161

Also cleared against K152266: 2 other devices →

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?

  • The line of descent spans 34 years and passes through 5 companies; a new generation was cleared every 5.9 years on median.
  • 8 of the 11 ancestors have a recall of any class.
  • 2 other devices also cite its predicate K152266.

How does its category compare?

All DWJ devices

DWJ System, Thermal Regulating: FDA decisions, review times, recalls and adverse event reports over 20 years. 2025, this device’s year, is highlighted.

FDA decisions per year · DWJ

3in 2025

2007: 42008: 32009: 32010: 82011: 42012: 52013: 52014: 42016: 22017: 52018: 32019: 22020: 52021: 22022: 22023: 62024: 22025: 32026 (partial year): 5
2007high 8 (2010) · low 0 (2015)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · DWJ

131in 2025

2007: 106 days median2008: 73 days median2009: 106 days median2010: 134 days median2011: 180 days median2012: 69 days median2013: 77 days median2014: 131 days median2017: 153 days median2018: 95 days median2020: 30 days median2023: 42 days median2025: 131 days median2026 (partial year): 99 days median
2007high 180 (2011) · low 30 (2020)2026

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

Recalls per year · DWJ

3in 2024

2009: 62010: 22011: 72012: 12013: 22015: 12017: 32018: 52019: 32020: 22021: 12022: 52024: 32026 (partial year): 3
2007high 7 (2011) · low 0 (2007)2026

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

Adverse event reports per year · DWJ

2,384in 2025

2007: 522008: 402009: 712010: 1042011: 1362012: 1062013: 732014: 1162015: 2452016: 1,4002017: 1,4732018: 1,5172019: 2,2942020: 2,5462021: 2,6892022: 3,2262023: 3,4552024: 3,3292025: 2,384
2007high 3,455 (2023) · low 40 (2008)2025

MAUDE reports naming product code DWJ, 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
20074106052
2008373040
20093106671
201081342104
201141807136
20125691106
2013577273
201441310116
20150—1245
20162—01,400
2017515331,473
201839551,517
20192—32,294
202053022,546
20212—12,689
20222—53,226
202364203,455
20242—33,329
2025313102,384
20265993—

What is it indicated for?

Celsi Warmer is intended for use in hospitals under a clinician’s supervision or at their direction to assist nurses in continuous temperature monitoring and thermal treatment of neonates.

a. Maintain pre-set body temperature as determined by the physician.

b. Celsi Warmer is appropriate for neonates greater than 28 weeks gestational age who weigh between 1-4 kg.

c. Monitoring and controlling patient temperature.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K242964: Celsi Warmer.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K242964

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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