510(k) Report

510(k) · Cleared

Cleared

Thermacyl Blood/Fluid Warmer

K953741510(k) TraditionalCleared Jun 26, 1996321-day reviewClass II21 CFR 864.9205

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

Baxter Healthcare Corp · BSB Warmer, Blood, Non-Electromagnetic Radiation

Cleared on Jun 26, 1996 as substantially equivalent to K770232 (Gorman Rupp Industries, 1977) after a 321-day review. Its family tree reaches back 1 generation to 1977.

Decided
Jun 26, 1996
Review
321 days
Class
Class II
Product code
BSB
Recalls
None
Predicates
2

Its longest line of descent runs back 1 generation to K770232 (1977). No later device cites it as a predicate yet.

K770232 · Blood/Fluid Warmer Model DW-1000A · Gorman Rupp Industries · 197719751980198519901995
  1. Root · 1 generation backK770232 Blood/Fluid Warmer Model DW-1000AGorman Rupp Industries · 1977
  2. This deviceK953741 Thermacyl Blood/Fluid WarmerBaxter Healthcare Corp · 1996
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−1K770232Blood/Fluid Warmer Model DW-1000AGorman Rupp Industries1977—
0 (this device)K953741Thermacyl Blood/Fluid WarmerBaxter Healthcare Corp1996—
FIG. 1 — Lineage of K953741, 1977–1996Source: 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.

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  • Candidate predicates for a device like this, rankedin the report
  • Recall history across each candidate’s familyin 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; numbers the summary cites that cannot be its predicate are marked – and kept off the family tree.

TypeNumberDeviceApplicantDecidedRecalls
*K770232Blood/Fluid Warmer Model DW-1000A
Summary page 2
…evice and the Predicate Devices The ThermaCyl™ blood/fluid warmer is substantially equivalent to the Pharmaseal blood/fluid warmer (found substantially equivalent under K770232) and the Alton Dean blood/fluid warmer (found substantially equivalent under BK910033). A comparison of technological features f…
Gorman Rupp Industries1977—
Kept off the family treeK910033FDA’s K910033 is Ubi Magiwel (TM) Ana Quantitative
The summary prints BK910033, a CBER number, which our reading took as K910033, FDA’s number for Ubi Magiwel (TM) Ana Quantitative (United Biotech, Inc.). Its FDA name has none of the distinctive words the summary uses for the device it names, “Alton Dean blood/fluid warmer”. Kept off the family tree.
Summary page 2
…ivalent to the Pharmaseal blood/fluid warmer (found substantially equivalent under K770232) and the Alton Dean blood/fluid warmer (found substantially equivalent under BK910033). A comparison of technological features follows: ALTON DEAN BAXTER THERMACYL™ PHARMASEAL" FEATURE BLOOD WARMER BLOOD/FLUID WARM…
United Biotech, Inc.1991—

Also cleared against K770232: 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?

  • Its one ancestor has no recall.
  • 2 other devices also cite its predicate K770232.

How does its category compare?

All BSB devices

BSB Warmer, Blood, Non-Electromagnetic Radiation: FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · BSB

1in 2011

2009: 12011: 1
2007high 1 (2009) · low 0 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · BSB

Too few BSB 510(k)s in any year since 2007 to give a median.

Recalls per year · BSB

1in 2014

2014: 1
2007high 1 (2014) · low 0 (2007)2026

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

Adverse event reports per year · BSB

197in 2025

2007: 42008: 52010: 62011: 352012: 42013: 52014: 102015: 112016: 662017: 292018: 362019: 1472020: 2162021: 3402022: 4472023: 2902024: 2822025: 197
2007high 447 (2022) · low 0 (2009)2025

MAUDE reports naming product code BSB, 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
20070—04
20080—05
20091—00
20100—06
20111—035
20120—04
20130—05
20140—110
20150—011
20160—066
20170—029
20180—036
20190—0147
20200—0216
20210—0340
20220—0447
20230—0290
20240—0282
20250—0197
20260—0—

What is it indicated for?

The ThermaCyl™ blood/fluid warmer is indicated for the warming of blood products and intravenous solutions prior to administration. It is intended to be used by healthcare professionals in clinical environments.

Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.

Cite this page

510(k) Report. “K953741: Thermacyl Blood/Fluid Warmer.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K953741

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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