510(k) Report

510(k) · Cleared

Recalled · Class II · 2014

V5MS Transducer

K121807510(k) SpecialCleared Jul 10, 201220-day reviewClass II21 CFR 892.1570Recalls 1

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

Siemens Medical Solutions USA, Inc. · ITX Transducer, Ultrasonic, Diagnostic

Cleared on Jul 10, 2012 as substantially equivalent to K052021 (Siemens Medical Solutions USA, Inc., 2005) after a 20-day review. Its family tree reaches back 7 generations to 1995. It has been recalled once.

Decided
Jul 10, 2012
Review
20 days
Class
Class II
Product code
ITX
Recalls
1
Predicates
1

Its longest line of descent runs back 7 generations to K935595 (1995). 38 ancestors in all, the oldest K891689 (1989). No later device cites it as a predicate yet.

Other ancestors, by year cleared 2005: 1 other ancestor2004: 3 other ancestors2003: 3 other ancestors2002: 3 other ancestors2000: 4 other ancestors2001: 2 other ancestors1999: 4 other ancestors1998: 1 other ancestor1995: 3 other ancestors1997: 2 other ancestors1994: 3 other ancestors1989: 1 other ancestor1992: 1 other ancestorK935595 · Acuson Model 3001 · Acuson Corp. · 1995K973767 · Harmonic Imaging with Contrast · Acuson Corp. · 1997K022567 · Sequoia Signature II Diagnostic Ultrasound System · Acuson Corp. · 2002K032114 · Sequoia 8.0 Diagnostic Ultrasound System · Siemens Medical Solutions USA, Inc. · 2003K041319 · Sequoia Diagnostic Ultrasound System · Siemens Medical Solutions USA, Inc. · 2004K042770 · Modification to Acuson CV70 Cardiovascular System · Siemens Medical Solutions USA, Inc. · 2004 · recalledK052021 · V5MS Transducer and MPT7-4 Multiplane Transesophageal Transducer · Siemens Medical Solutions USA, Inc. · 2005 · recalled198519901995200020052010
  1. Root · 7 generations backK935595 Acuson Model 3001Acuson Corp. · 1995
  2. 6 generations backK973767 Harmonic Imaging with ContrastAcuson Corp. · 1997
  3. 5 generations backK022567 Sequoia Signature II Diagnostic Ultrasound SystemAcuson Corp. · 2002
  4. 4 generations backK032114 Sequoia 8.0 Diagnostic Ultrasound SystemSiemens Medical Solutions USA, Inc. · 2003
  5. 3 generations backK041319 Sequoia Diagnostic Ultrasound SystemSiemens Medical Solutions USA, Inc. · 2004
  6. 2 generations backK042770 Modification to Acuson CV70 Cardiovascular SystemSiemens Medical Solutions USA, Inc. · 2004 · Recalled
  7. 1 generation backK052021 V5MS Transducer and MPT7-4 Multiplane Transesophageal TransducerSiemens Medical Solutions USA, Inc. · 2005 · Recalled
  8. This deviceK121807 V5MS TransducerSiemens Medical Solutions USA, Inc. · 2012
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−7K935595Acuson Model 3001Acuson Corp.1995—
−6K973767Harmonic Imaging with ContrastAcuson Corp.1997—
−5K022567Sequoia Signature II Diagnostic Ultrasound SystemAcuson Corp.2002—
−4K032114Sequoia 8.0 Diagnostic Ultrasound SystemSiemens Medical Solutions USA, Inc.2003—
−3K041319Sequoia Diagnostic Ultrasound SystemSiemens Medical Solutions USA, Inc.2004—
−2K042770Modification to Acuson CV70 Cardiovascular SystemSiemens Medical Solutions USA, Inc.20041
−1K052021V5MS Transducer and MPT7-4 Multiplane Transesophageal TransducerSiemens Medical Solutions USA, Inc.20051
0 (this device)K121807V5MS TransducerSiemens Medical Solutions USA, Inc.2012—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
198910
199210
199430
199530
199720
199810
199940
200040
200120
200230
200330
200430
200510
FIG. 1 — Lineage of K121807, 1995–2012Source: 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 ITX? 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 ITX device

  1. #1 K260114 Align® Cover and Pad Guidance Toolscore 13.6 · 6 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? (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
*K052021V5MS Transducer and MPT7-4 Multiplane Transesophageal Transducer
Summary page 1
…: (650) 694 5988 Fax: (650) 694 5580 11.3. Submission Date: May 7,2012 11.4. Device Name: V5Ms Transesophageal Transducer (K052021) used for ACUSON Antares Diagnostic Ultrasound System (K063803),…
Siemens Medical Solutions USA, Inc.20051

Also cleared against K052021: 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)

Recalls of this device

DateClassRecallRoot causeReason
Aug 13, 2014Class IIZ-2571-2014Under Investigation by firmReports of deterioration of material covering the articulating section of the V5Ms transesophageal transducer.

No ancestor or descendant has a Class I recall.

What does this lineage say?

  • The line of descent spans 17 years and passes through 2 companies; a new generation was cleared every 11 months on median.
  • 7 of the 38 ancestors have a recall of any class.
  • 2 other devices also cite its predicate K052021.

How does its category compare?

All ITX devices

ITX Transducer, Ultrasonic, Diagnostic: FDA decisions, review times, recalls and adverse event reports over 20 years. 2012, this device’s year, is highlighted.

FDA decisions per year · ITX

4in 2025

2007: 102008: 122009: 172010: 102011: 102012: 72013: 32014: 42015: 12016: 42017: 62018: 22019: 12020: 32021: 32022: 22023: 62024: 32025: 42026 (partial year): 6
2007high 17 (2009) · low 1 (2015)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · ITX

126in 2025

2007: 26 days median2008: 73 days median2009: 28 days median2010: 42 days median2011: 16 days median2012: 25 days median2013: 105 days median2014: 41 days median2016: 151 days median2017: 110 days median2020: 120 days median2021: 139 days median2023: 213 days median2024: 81 days median2025: 126 days median2026 (partial year): 158 days median
2007high 213 (2023) · low 16 (2011)2026

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

Recalls per year · ITX

2in 2025

2008: 42009: 42010: 42011: 12012: 12014: 12015: 52017: 12018: 152020: 32021: 10, 10 Class I2022: 62023: 12024: 12025: 2
2007high 15 (2018) · low 0 (2007)2026

Class I (10 since 2007) Class II/III not classified

Adverse event reports per year · ITX

571in 2025

2007: 162008: 392009: 232010: 302011: 342012: 292013: 382014: 432015: 1832016: 2692017: 4122018: 1302019: 1192020: 1162021: 1462022: 872023: 1382024: 9882025: 571
2007high 988 (2024) · low 16 (2007)2025

MAUDE reports naming product code ITX, 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
20071026016
20081273439
20091728423
20101042430
20111016134
2012725129
20133105038
2014441143
20151—5183
201641510269
201761101412
20182—15130
20191—0119
202031203116
2021313910 (10)146
20222—687
202362131138
20243811988
202541262571
202661580—

What is it indicated for?

VSMs trans-esophageal echocardiograph (TEE) ultrasound transducer is intended primarily for cardiology applications. Acuson Antares Ultrasound System The Acuson Antares ultrasound imaging system is intended for the following applications: Abdominal, lntraoperative, Small Parts, Transcrainial, OB/GYN, Cardiac, Intracardiac, Transesophageal, Pelvic, Neonatal/Adult Cephalic, Vascular, Intravascular, Musculoskeletal, Superficial Musculoskeletal, Great…

Read the full statement (1,223 words)

VSMs trans-esophageal echocardiograph (TEE) ultrasound transducer is intended primarily for cardiology applications.

Acuson Antares Ultrasound System

The Acuson Antares ultrasound imaging system is intended for the following applications:

Abdominal, lntraoperative, Small Parts, Transcrainial, OB/GYN, Cardiac, Intracardiac, Transesophageal, Pelvic, Neonatal/Adult Cephalic, Vascular, Intravascular, Musculoskeletal, Superficial Musculoskeletal, Great Vessel, and Peripheral Vascular applications.

The system also provides for the measurement of anatomical structures and for analysis packages that provide information that is used for clinical diagnosis purposes.

ACUSON CV7O Cardiovascular System

The CV7O ultrasound imaging system is intended for the following applications:

Abdominal, lntraoperative, Small Parts, Transcranial, OB/GYN, Cardiac. Intracardiac, Transesophageal, Pelvic, Neonatal/Adult Gephalic, Vascular, Intravascular, Musculoskeletal, Superficial Musculoskeletal, Great Vessel, and Peripheral Vascular applications.

The system also provides for the measurement of anatomical structures and for analysis packages that provide information that is used for clinical diagnosis purposes.

ACUSON Cypress Ultrasound System

The Cypress platform is intended for use in the following applications:

General Imaging and Cardiology for Fetal, Abdominal, lntraoperative (cardiac), Pediatrics, Neonatal Cephalic, Cardiac (adult, pediatric), Trans-esophageal, Peripheral Vessel, Intra-luminal and Intra-cardiac applications, and intended uses as defined in the FDA guidance document.

The system also provides for the measurement of anatomical structures and for analysis packages that provide information that is used for clinical diagnosis purposes

ACUSON 51000152000 Ultrasound System

The S200TM ultrasound imaging systems are intended for the following applications: Fetal, Abdominal, Intraoperative, Pediatric, Small Parts, Transcranial, OB/GYN, Cardiac, Pelvic, Neonatal/Adult Cephalic, Vascular, Musculoskeletal, Superficial Musculoskeletal, and Peripheral Vascular applications.

The system also provides the ability to measure anatomical structures (fetal, abdominal, intraoperative, intraoperative neurological, pediatric, small organ, neonatal cephalic, adult cephalic, cardiac, trans-esophageal, transrectal, transvaginal, peripheral vessel, musculoskeletal(conventional), musculo-skeletal (superficial) and neonatal cardiac} and calculation packages that provide information that provide information to the clinician that may be used adjunctively with other medical data obtained by a physician for clinical diagnosis purposes.

The Arterial Health Package (AHP) software provides the physician with the capability to measure Intima Media 'Thickness and the option to reference normative tables that have been validated and published in peer-reviewed studies.

The information is intended to provide the physician with an easily understood tool for communicating with patients, regarding state of their cardiovascular system. This feature should be utilized according to the "ASE Consensus Statement; Use of Carotid Ultrasound to Identify Subclinical Vascular Disease and Evaluate Cardiovascular Disease Risk: A Consensus Statement from the American Association of Echocardiography; Carotid Intima-Media Thickness Task Force, Endorsed by the Society for Vascular Imaging."

Acuson SC2000 Ultrasound System

The SC2000 ultrasound imaging system is intended for the following applications:

Cardiac, Neo-natal and Fetal Cardiac, Pediatric, Transespohageal, Adult Cephalic, Peripheral Vessel, lntraoperative Neurological, Musculo-skeletal Conventional, and Musculo-skeletal Superficial applications. The system also provides the ability to measure anatomical structures and calculation packages that provide information to the clinician that may be used adjunctively with other medical data obtained by a physician for clinical diagnosis purposes. The typical examinations performed using the SC2000 Ultrasound System are:

Cardiac Imaging Applications and Analysis

The system transmits ultrasound energy into adult, pediatric, neonatal, and fetal cardiac patients creating 20 (B), 3D, M-Mode (M): Color Doppler (CD), Color Power Doppler (CPD), Pulsed Wave (PW) Doppler, and Continuous Wave Doppler (CWD) to obtain images and blood flow velocity of the heart, cardiac valves, great vessels, and surrounding anatomical structures to evaluate the presence or absence of pathology. The system may be used to acquire patient electrocardiogram for synchronizing the diastolic and systolic capture of ultrasound images.

The system also supports catheters which are intended for intra-cardiac and intraluminal visualization of cardiac and great vessel anatomy and physiology as well as visualization of other devices in the heart of adult and pediatric patients.,

The system has Cardiac Measurements and Calculation Packages that provide information that may be used adjunctively with other medical data obtained by a physician for clinical diagnosis purposes.

Vascular Imaging Applications and Analysis

The system transmits ultrasound energy into various parts of the body of adult patients creating 2D (B), Color Doppler (CD), Color Power Doppler (CPD), Pulsed Wave Doppler (PWD), and. Continuous Wave Doppler (CWD) to obtain images and blood flow velocity of the carotid arteries or juggler veins in the neck; superficial and deep veins and arteries in the arms and legs; and surrounding anatomical structures to evaluate the presence or absence of pathology. The system may be used to acquire patient electrocardiogram for synchronizing the diastolic and systolic capture of ultrasound images.

The system has Vascular Measurements and Calculation Packages that provide information that may be used adjunctively with other medical data obtained by a physician for clinical diagnosis purposes.

Superficial Imaging Applications

The system transmits ultrasound energy into various parts of the body of adult patients creating 20 (8), Color Doppler (CD), Color Power Doppler (CPD), Pulsed Wave Doppler (PWD), and Continuous Wave Doppler (CWD) to obtain images and blood flow velocity of conventional or superficial musculoskeletal structures and surrounding anatomical structures to evaluate the presence or absence of pathology. The system may be used to acquire patient electrocardiogram for synchronizing the diastolic and systolic capture of ultrasound images.

lntraoperative Imaging Applications

The system transmits ultrasound energy into various parts of the body of adult patients creating 2D (B), Color Doppler (CD), Color Power Doppler (CPD), and Pulsed Wave Doppler (PWD) to obtain images and blood flow velocity that provide guidance during neurological intraoperative procedures.

Transcranial Imaging Applications

The system transmits ultrasound energy into the cranium of adult patients creating 20 (B), Color Doppler (CD), Color Power Doppler (CPD), Pulsed Wave Doppler (PWD), and Continuous Wave Doppler (OWO) to obtain images and blood flow velocity of the brain and surrounding anatomical structures to evaluate the presence or absence of pathology.

The system provides Measurement Packages that provide information that may be used adjunctively with other medical data obtained by a physician for clinical diagnosis purposes.

ACUSON Sequoia Ultrasound System

The Siemens ACUSON Sequoia ultrasound imaging system is intended for the following applications:

General Imaging and Cardiology for Fetal, Abdominal, lntraoperative (abdominal and neurological), Pediatrics, Small Organs (breast, testes, thyroid and penis), Neonatal/Adult Cephalic, Cardiac (adult, pediatric, and neonatal), Trans-esophageal, Transrectal, Transvaginal, Peripheral Vessel, and Musculo-sceletal (superficial and conventional) applications, and intended uses as defined in the FDA guidance document.

The system also provides for the measurement of anatomical structures and for analysis packages that provide information that is used for clinical diagnosis purposes.

ACUSON X300 Ultrasound System

The Siemens Acuson X300 ultrasound imaging system is intended for the following applications: General Radiology, Fetal, Abdominal, lntraoperative, Pediatric, Small Parts, Neonatal/Adult Cephalic, Cardiac, Transesophageal, Pelvic, Transcranial, OB/GYN, Urology, Vascular, Musculoskeletal, Superficial Musculoskeletal, and Peripheral Vascular applications.

The system also provides for the measurement of anatomical structures and for analysis packages that provide information that is used for clinical diagnosis purposes.

The Arterial Health Package (AHP) software provides the physician with the capability to measure Intima Media Thickness and the option to reference normative tables that have been validated and published in peer-reviewed studies. The information is intended to provide the physician with an easily understood tool for communicating with patients regarding state of their cardiovascular system. This feature should be utilized according to the "ASE Consensus Statement; Use of Carotid Ultrasound to Identify Subclinical Vascular Disease and Evaluate Cardiovascular Disease Risk: A Consensus Statement from the American Association of Echocardiography; Carotid Intima-Media Thickness Task Force, Endorsed by the Society for Vascular Imaging".

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K121807: V5MS Transducer.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K121807

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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