510(k) Report

510(k) · Cleared

Cleared

Sono TT Ultrasonic Flowcomputer

K040909510(k) TraditionalCleared Apr 20, 200412-day reviewClass II21 CFR 870.2100

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

Em-Tec GmbH · DPW Flowmeter, Blood, Cardiovascular

Cleared on Apr 20, 2004 after a 12-day review. FDA’s file for it is a 510(k) statement, which names no predicate.

Decided
Apr 20, 2004
Review
12 days
Class
Class II
Product code
DPW
Recalls
None
Predicates
0

FDA’s file for it is a 510(k) statement, which names no predicate.

FIG. 1 — Lineage of K040909Source: FDA 510(k) database · 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 510(k) statement (indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.

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Top candidate predicates for a new DPW device

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What was it cleared against?

FDA’s file for it is a 510(k) statement, which names no predicate.

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.

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—

What is it indicated for?

The Sono TT Ultrasonic Flowcomputer in combination with an ultrasonic clamp-on Transducer is indicated for the contact less volumetric measurement of liquid flowing through tubing systems. The measurement principle is the ultrasound transit-time method. The medical use of the device is appropriate in the following extracorporeal procedures: - Cardio-pulmonary bypass, membrane-oxygenation, hemodialysis, hemofiltration, plasmapheresis - Perfusion…

Read the full statement (191 words)

The Sono TT Ultrasonic Flowcomputer in combination with an ultrasonic clamp-on Transducer is indicated for the contact less volumetric measurement of liquid flowing through tubing systems. The measurement principle is the ultrasound transit-time method.

The medical use of the device is appropriate in the following extracorporeal procedures:

- Cardio-pulmonary bypass, membrane-oxygenation, hemodialysis, hemofiltration, plasmapheresis

- Perfusion, infusion, transfusion

- Several shunt-applications

The Flowcomputer can be used in intensive care units and operating rooms. For the patient's safety the device is to be operated only by qualified medically-trained personnel.

Contraindication:

This device has been built and sold only for the intended purpose mentioned above. The supplied measured values serve only to monitor the flow rate of the device in use (e.g. oxygenator, blood pump). These values are not to be used either for an evaluation of a patient's status or for the basis of medical actions without the confirmation of another approved medical measurement procedure.

It is the operator's responsibility to use the device as described in the User's Manual and in any of its following revision releases. The use of clinical procedures and techniques lie in the physician's area of responsibility.

Indications for use as stated in the FDA 510(k) statement.

Cite this page

510(k) Report. “K040909: Sono TT Ultrasonic Flowcomputer.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K040909

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