510(k) Report

510(k) · Cleared

Recalled · Class II · 2015

Transonic Flowmeter

K872048510(k) TraditionalCleared Jun 21, 1988390-day reviewClass II21 CFR 870.2100Recalls 10

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

Transonic Systems, Inc. · DPW Flowmeter, Blood, Cardiovascular

Cleared on Jun 21, 1988 after a 390-day review. FDA has not posted a summary or statement for it, so its predicates are not known. 2 of the 18 devices in its family, counting itself, have a Class I recall. 17 later devices descend from it. It has been recalled 10 times.

Decided
Jun 21, 1988
Review
390 days
Class
Class II
Product code
DPW
Recalls
10
Predicates
0

17 later devices descend from it, 4 citing it directly. 2 of the 18 devices in this family, counting this one, have a Class I recall.

Descendants, by year cleared 1999: 1 descendant cleared1998: 1 descendant cleared2005: 1 descendant cleared2007: 1 descendant cleared2009: 2 descendants cleared2004: 1 descendant cleared2010: 1 descendant cleared2011: 3 descendants cleared, 1 with a Class I recall12013: 1 descendant cleared2014: 1 descendant cleared, 1 with a Class I recall12018: 2 descendants cleared2020: 1 descendant cleared2021: 1 descendant cleared1990200020102020
  1. This deviceK872048 Transonic FlowmeterTransonic Systems, Inc. · 1988
  2. Descendant · cites it directly · 10 of its ownK072131 M3 MonitorSpectrum Medical, Ltd. · 2007
  3. Descendant · 2 generations on · 5 of its ownK091908 M3 MonitorSpectrum Medical, Ltd. · 2009 · Recalled
  4. Descendant · 3 generations on · 4 of its ownK110957 M4 MonitorSpectrum Medical, Llp · 2011
  5. Descendant · cites it directly · 4 of its ownK992305 Medi-Stim Butterfly Flowmeter, Model BF1000-BF2004Medi-Stim A/S · 1999
  6. Descendant · 4 generations on · 3 of its ownK173591 Quantum Diagnostic Module, Quantum Diagnostic Module - No GasSpectrum Medical, Ltd. · 2018

Showing 5 of 17 descendants. See all descendants

Descendants cleared per year

1998: 11999: 12004: 12005: 12007: 12009: 22010: 12011: 32013: 12014: 12018: 22020: 12021: 1
1998high 3 (2011) · low 0 (2000)2026

Class I recalls in this family

Most influential descendants

Showing 5 of 17 · See all
  • K072131M3 MonitorSpectrum Medical, Ltd. · 2007 · cites it directly10descendants
  • K091908M3 MonitorSpectrum Medical, Ltd. · 2009 · 2 generations on5descendants
  • K110957M4 MonitorSpectrum Medical, Llp · 2011 · 3 generations on4descendants
  • K992305Medi-Stim Butterfly Flowmeter, Model BF1000-BF2004Medi-Stim A/S · 1999 · cites it directly4descendants
  • K173591Quantum Diagnostic Module, Quantum Diagnostic Module - No GasSpectrum Medical, Ltd. · 2018 · 4 generations on3descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
0 (this device)K872048Transonic FlowmeterTransonic Systems, Inc.1988—
+1K072131M3 MonitorSpectrum Medical, Ltd.2007—
+2K091908M3 MonitorSpectrum Medical, Ltd.20091
+3K110957M4 MonitorSpectrum Medical, Llp2011—
+1K992305Medi-Stim Butterfly Flowmeter, Model BF1000-BF2004Medi-Stim A/S1999—
+4K173591Quantum Diagnostic Module, Quantum Diagnostic Module - No GasSpectrum Medical, Ltd.2018—

Descendants by year cleared

Year clearedDevicesWith a Class I recall
199810
199910
200410
200510
200710
200920
201010
201131
201310
201411
201820
202010
202110
FIG. 1 — Lineage of K872048, 1988–2021Source: 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), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.

2 devices in this family have a Class I recall. 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 DPW device

  1. #1 K251114 FloPatch FP120score 13.7 · 5 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
Get a 510(k) Report

What was it cleared against?

FDA has not posted a summary or statement for it, so its predicates are not known.

What descends from it? (17)

See all 17

4 later devices cite it directly; ranked here by how many devices descend from each in turn.

NumberDeviceApplicantDecidedDescendants
K072131M3 MonitorSpectrum Medical, Ltd.200710
K992305Medi-Stim Butterfly Flowmeter, Model BF1000-BF2004Medi-Stim A/S19994
K050088Quantix/or Blood Flow Monitor; Flexible Probe with Optional Vessel StabilizerNeoprobe Corp.20050
K982986Tubing Blood Flow Meter Model Number HD-800Koven Technology, Inc.19980

Has anything in its family been recalled? (2 Class I)

Recalls of this device

DateClassRecallRoot causeReason
Jul 27, 2015Class IIZ-2727-2015Software Manufacturing/Software DeploymentSoftware defect; programming errors in the blood flow probes EPROM. Transonic received several complaints from users indicating that when the flow probe is connected to a flow meter the meter reads Used Probe or Irrelevant Use Number.
Jul 27, 2015Class IIZ-2724-2015Software Manufacturing/Software DeploymentSoftware defect; programming errors in the blood flow probes EPROM. Transonic received several complaints from users indicating that when the flow probe is connected to a flow meter the meter reads Used Probe or Irrelevant Use Number.
Jul 27, 2015Class IIZ-2720-2015Software Manufacturing/Software DeploymentSoftware defect; programming errors in the blood flow probes EPROM. Transonic received several complaints from users indicating that when the flow probe is connected to a flow meter the meter reads Used Probe or Irrelevant Use Number.
Jul 27, 2015Class IIZ-2723-2015Software Manufacturing/Software DeploymentSoftware defect; programming errors in the blood flow probes EPROM. Transonic received several complaints from users indicating that when the flow probe is connected to a flow meter the meter reads Used Probe or Irrelevant Use Number.
Jul 27, 2015Class IIZ-2725-2015Software Manufacturing/Software DeploymentSoftware defect; programming errors in the blood flow probes EPROM. Transonic received several complaints from users indicating that when the flow probe is connected to a flow meter the meter reads Used Probe or Irrelevant Use Number.
Jul 27, 2015Class IIZ-2729-2015Software Manufacturing/Software DeploymentSoftware defect; programming errors in the blood flow probes EPROM. Transonic received several complaints from users indicating that when the flow probe is connected to a flow meter the meter reads Used Probe or Irrelevant Use Number.
Jul 27, 2015Class IIZ-2722-2015Software Manufacturing/Software DeploymentSoftware defect; programming errors in the blood flow probes EPROM. Transonic received several complaints from users indicating that when the flow probe is connected to a flow meter the meter reads Used Probe or Irrelevant Use Number.
Jul 27, 2015Class IIZ-2726-2015Software Manufacturing/Software DeploymentSoftware defect; programming errors in the blood flow probes EPROM. Transonic received several complaints from users indicating that when the flow probe is connected to a flow meter the meter reads Used Probe or Irrelevant Use Number.
Jul 27, 2015Class IIZ-2728-2015Software Manufacturing/Software DeploymentSoftware defect; programming errors in the blood flow probes EPROM. Transonic received several complaints from users indicating that when the flow probe is connected to a flow meter the meter reads Used Probe or Irrelevant Use Number.
Jul 27, 2015Class IIZ-2721-2015Software Manufacturing/Software DeploymentSoftware defect; programming errors in the blood flow probes EPROM. Transonic received several complaints from users indicating that when the flow probe is connected to a flow meter the meter reads Used Probe or Irrelevant Use Number.

Relatives with a Class I recall

Class I is FDA’s most serious recall class. A recall in the family tree is context for this device, not evidence about it.

  • K102726Cardiohelp SystemMaquet Cardiopulmonary, AG · 2011 · 3 generations on · ◆ in the 2011 descendants bar of FIG. 11 Class I recall
  • K133598Cardiohelp SystemMaquet Cardiopulmonary, AG · 2014 · 4 generations on · ◆ in the 2014 descendants bar of FIG. 11 Class I recall

What does this lineage say?

  • Of its descendants, K072131 (Spectrum Medical, Ltd., 2007) has gone furthest, with 10 descendants of its own.

How does its category compare?

All DPW devices

DPW Flowmeter, Blood, Cardiovascular: FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · DPW

3in 2025

2007: 12008: 12010: 22011: 42012: 12013: 22015: 32016: 12018: 22019: 32020: 22021: 22022: 32023: 12024: 12025: 32026 (partial year): 2
2007high 4 (2011) · low 0 (2009)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · DPW

119in 2025

2011: 89 days median2015: 275 days median2019: 169 days median2022: 136 days median2025: 119 days median
2007high 275 (2015) · low 89 (2011)2026

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

Recalls per year · DPW

1in 2025

2007: 42010: 12012: 12017: 12025: 1
2007high 4 (2007) · low 0 (2008)2026

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

Adverse event reports per year · DPW

6in 2025

2009: 12011: 12013: 32014: 82015: 122016: 12017: 22019: 32020: 42021: 62022: 12023: 22024: 42025: 6
2007high 12 (2015) · low 0 (2007)2025

MAUDE reports naming product code DPW, 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
20071—40
20081—00
20090—01
20102—10
201148901
20121—10
20132—03
20140—08
20153275012
20161—01
20170—12
20182—00
2019316903
20202—04
20212—06
2022313601
20231—02
20241—04
2025311916
20262—0—
Cite this page

510(k) Report. “K872048: Transonic Flowmeter.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K872048

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Record history
  • FDA decision record loaded May 2, 2026
  • Lineage and recalls computed Nov 3, 2026
  • Page last updated Nov 3, 2026