The ACUSON Sequoia ultrasound imaging system is intended to provide images of, or signals from, inside the body by an appropriately trained healthcare professional in a clinical setting for the following applications: Fetal, Abdominal, Pediatric, Neonatal Cephalic, Small Parts, OB/GYN (useful for visualization of the ovaries, follicles, uterus and other pelvic structures). Cardiac, Pelvic, Vascular, Musculoskeletal and Peripheral Vascular applications.

The system also provides the ability to measure anatomical structures for fetal, abdominal, pediatric, small organ, cardiac, transrectal, transvaginal, peripheral vessel, musculoskeletal 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.

Device Description

The ACUSON Sequoia Diagnostic Ultrasound System is a multi-purpose mobile, software controlled, diagnostic ultrasound system with an on-screen display of thermal and mechanical indices related to potential bio-effect mechanisms. Its function is to transmit and receive ultrasound echo data and display it in B-Mode, M-Mode, Pulsed (PW) Doppler Mode, Continuous (CW) Doppler Mode, Color Doppler Mode, Color M Mode, Doppler Tissue Mode, Amplitude Doppler Mode, a combination of modes and Harmonic Imaging on a Display.

AI/ML Overview

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Acceptance Criteria and Reported Device Performance: The document is a 510(k) summary for a diagnostic ultrasound system (ACUSON Sequoia). While it lists various capabilities and features (e.g., modes of operation, clinical applications), it does not provide quantitative acceptance criteria or specific performance metrics (like sensitivity, specificity, accuracy, or any numeric scores) for how well the device performs these functions. It primarily focuses on demonstrating substantial equivalence to predicate devices based on technological characteristics and intended use.
Study Details: Since no specific performance claims or acceptance criteria are stated, there is no detailed study described that proves the device meets such criteria. The document explicitly states: "Since the ACUSON Sequoia Diagnostic Ultrasound System uses the same technology and principles as existing devices, clinical studies were not required to support substantial equivalence." This indicates that a pivotal clinical trial demonstrating performance against specific endpoints was not part of this submission for clearance.
Missing Information: Consequently, all the other requested details such as sample size, data provenance, expert qualifications, adjudication methods, MRMC study results, standalone performance, ground truth type, and training set information are not present in this document because no such performance study is detailed.

The document focuses on establishing substantial equivalence based on:

Indications for Use: The system is intended to provide images and signals for various clinical applications (Fetal, Abdominal, Pediatric, Neonatal Cephalic, Small Parts, OB/GYN, Cardiac, Pelvic, Vascular, Musculoskeletal, and Peripheral Vascular).
Technological Characteristics: Comparison of modes, frequencies, and features with predicate devices.
Safety and Compliance: Adherence to various IEC and ISO standards for acoustic output, biocompatibility, electrical safety, etc.

It operates under the assumption that since the technology and intended use are substantially equivalent to previously cleared devices, explicit performance studies comparing against rigid acceptance criteria are not necessary for this 510(k) clearance.

Summary

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Image /page/0/Picture/0 description: The image contains the logo of the U.S. Food and Drug Administration (FDA). On the left is the Department of Health & Human Services logo. To the right of that is the FDA logo, which is a blue square with the letters "FDA" in white. To the right of the blue square is the text "U.S. FOOD & DRUG ADMINISTRATION" in blue.

January 31, 2020

Siemens Medical Solutions USA, Inc. Ultrasound Division % Sulgue Choi Regulatory Affairs 685 East Middlefield Road MOUNTAIN VIEW CA 94043

Re: K193257

Trade/Device Name: ACUSON Sequoia Diagnostic Ultrasound System Regulation Number: 21 CFR 892.1550 Regulation Name: Ultrasonic pulsed doppler imaging system Regulatory Class: Class II Product Code: IYN, IYO, ITX Dated: December 10, 2019 Received: December 12, 2019

Dear Sulgue Choi:

We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.

If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.

Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part

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801); medical device reporting of medical device-related adverse events) (21 CFR 803) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.

Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.

For comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).

Sincerely,

Thalia T. Mills, Ph.D. Director Division of Radiological Health OHT7: Office of In Vitro Diagnostics and Radiological Health Office of Product Evaluation and Quality Center for Devices and Radiological Health

Enclosure

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Indications for Use

510(k) Number (if known) K193257

Device Name

ACUSON Sequoia Diagnostic Ultrasound System

Indications for Use (Describe)

Type of Use (Select one or both, as applicable)

X Prescription Use (Part 21 CFR 801 Subpart D)

Over-The-Counter Use (21 CFR 801 Subpart C)

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510 (k) Number (if known):

K193257

Device Name: Intended Use:

ACUSON Sequoia Diagnostic Ultrasound System Ultrasound imaging or fluid flow analysis of the human body as follows:

	Mode of Operation
Clinical Application	A	B	M	PWD	CWD	ColorDoppler	AmplitudeDoppler	ColorVelocityImaging	Combined(Specify)	Other(Specify)
Ophthalmic
Fetal		P	P	P		P	P		BMDC
Abdominal		P	P	P		P	P		BMDC
Intraoperative
IntraoperativeNeurological
Pediatric		P	P	P	P	P	P		BMDC
Small Organ(Note 1)		P	P	P		P	P		BMDC
Neonatal Cephalic		N	N	N		N	N		BMDC
Adult Cephalic
Cardiac		P	P	P	P	P	P		BMDC
Trans-esophageal
Transrectal		P	P	P		P	P		BMDC
Transvaginal		P	P	P		P	P		BMDC
Transurethral
Intravascular
Peripheral vessel		P	P	P		P	P		BMDC
Laparoscopic
Musculo-skeletalConventional		P	P	P		P	P		BMDC
Musculo-skeletalSuperficial		P	P	P		P	P		BMDC
Other (specify)

N = new indication; P = previously cleared by K180067

Note 1 For example: breast, testes, thyroid, penis, prostate, etc.

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Concurrence of CDRH, Office of In Vitro Diagnostic Devices (OIVD)

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510 (k) Number (if known):	K193257
Device Name:	4V1 Phased Array TransducerUltrasound imaging or fluid flow analysis of the human body as follows:
	Mode of Operation
Clinical Application	A	B	M	PWD	CWD	ColorDoppler	AmplitudeDoppler	Color VelocityImaging	Combined(Specify)	Other(Specify)
Ophthalmic
Fetal		P	P	P		P	P		BMDC
Abdominal		P	P	P		P	P		BMDC
Intraoperative
IntraoperativeNeurological
Pediatric		P	P	P		P	P		BMDC
Small Organ(Note 1)
Neonatal Cephalic
Adult Cephalic
Cardiac
Trans-esophageal
Transrectal
Transvaginal
Transurethral
Intravascular
Peripheral vessel
Laparoscopic
Musculo-skeletalConventional
Musculo-skeletalSuperficial
Other (specify)

N = new indication; P = previously cleared by K180067

Additional Comments:

Note 1 For example: breast, testes, thyroid, penis, prostate, etc.

(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)

Concurrence of CDRH, Office of In Vitro Diagnostic Devices (OIVD)

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510 (k) Number (if known):	K193257
Device Name:Intended Use:	DAX Curved Array TransducerUltrasound imaging or fluid flow analysis of the human body as follows:
						Mode of Operation
Clinical Application	A	B	M	PWD	CWD	ColorDoppler	AmplitudeDoppler	ColorVelocityImaging	Combined(Specify)	Other(Specify)
Ophthalmic
Fetal		P	P	P		P	P		BMCD
Abdominal		P	P	P		P	P		BMCD
Intraoperative
IntraoperativeNeurological
Pediatric		P	P	P		P	P		BMCD
Small Organ(Note 1)
Neonatal Cephalic
Adult Cephalic
Cardiac
Trans-esophageal
Transrectal
Transvaginal
Transurethral
Intravascular
Peripheral vessel
Laparoscopic
Musculo-skeletalConventional
Musculo-skeletalSuperficial
Other (specify)

N = new indication; P = previously cleared by K180067

Additional Comments:

For example: breast, testes, thyroid, penis, prostate, etc. Note 1

(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)

Concurrence of CDRH, Office of In Vitro Diagnostic Devices (OIVD)

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510 (k) Number (if known):	K193257
Device Name:	5C1 Curved Array Transducer
Intended Use:	Ultrasound imaging or fluid flow analysis of the human body as follows:
	Mode of Operation
Clinical Application	A	B	M	PWD	CWD	ColorDoppler	AmplitudeDoppler	Color VelocityImaging	Combined(Specify)	Other(Specify)
Ophthalmic
Fetal		P	P	P		P	P		BMCD
Abdominal		P	P	P		P	P		BMCD
Intraoperative
IntraoperativeNeurological
Pediatric		P	P	P		P	P		BMCD
Small Organ(Note 1)
Neonatal Cephalic
Adult Cephalic
Cardiac
Trans-esophageal
Transrectal
Transvaginal
Transurethral
Intravascular
Peripheral vessel
Laparoscopic
Musculo-skeletalConventional
Musculo-skeletalSuperficial
Other (specify)

N = new indication; P = previously cleared by K180067

Additional Comments:

Note 1 For example: breast, testes, thyroid, penis, prostate, etc.

(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)

Concurrence of CDRH, Office of In Vitro Diagnostic Devices (OIVD)

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510 (k) Number (if known): K193257
Device Name:Intended Use:	9C3 Curved Array TransducerUltrasound imaging or fluid flow analysis of the human body as follows:
						Mode of Operation
Clinical Application	A	B	M	PWD	CWD	ColorDoppler	AmplitudeDoppler	ColorVelocityImaging	Combined(Specify)	Other(Specify)
Ophthalmic
Fetal		P	P	P		P	P		BMCD
Abdominal		P	P	P		P	P		BMCD
Intraoperative
IntraoperativeNeurological
Pediatric		P	P	P		P	P		BMCD
Small Organ(Note 1)
Neonatal Cephalic
Adult Cephalic
Cardiac
Trans-esophageal
Transrectal
Transvaginal
Transurethral
Intravascular
Peripheral vessel
Laparoscopic
Musculo-skeletalConventional		P	P	P		P	P		BMCD
Musculo-skeletalSuperficial
Other (specify)

N = new indication; P = previously cleared by K180067

Additional Comments:

Note 1 For example: breast, testes, thyroid, penis, prostate, etc.

(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)

Concurrence of CDRH, Office of In Vitro Diagnostic Devices (OIVD)

Division Sign-Off - Office of In Vitro Diagnostic Devices 510(k)_

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510 (k) Number (if known):	K193257
Device Name: 18L6 Linear Array TransducerIntended Use: Ultrasound imaging or fluid flow analysis of the human body as follows:
						Mode of Operation
Clinical Application	A	B	M	PWD	CWD	ColorDoppler	AmplitudeDoppler	ColorVelocityImaging	Combined(Specify)	Other(Specify)
Ophthalmic
Fetal
Abdominal
Intraoperative
IntraoperativeNeurological
Pediatric		P	P	P		P	P		BMCD
Small Organ(Note 1)		P	P	P		P	P		BMCD
Neonatal Cephalic
Adult Cephalic
Cardiac
Trans-esophageal
Transrectal
Transvaginal
Transurethral
Intravascular
Peripheral vessel
Laparoscopic
Musculo-skeletalConventional		P	P	P		P	P		BMCD
Musculo-skeletalSuperficial		P	P	P		P	P		BMCD
Other (specify)

N = new indication; P = previously cleared by K180067

Additional Comments:

For example: breast, testes, thyroid, penis, prostate, etc. Note 1

(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)

Concurrence of CDRH, Office of In Vitro Diagnostic Devices (OIVD)

Division Sign-Off - Office of In Vitro Diagnostic Devices
510(k)______________________________________________________________________________________________________________

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510 (k) Number (if known):		K193257
14L5 Linear Array TransducerDevice Name:Ultrasound imaging or fluid flow analysis of the human body as follows:Intended Use:
	Mode of Operation
Clinical Application	A	B	M	PWD	CWD	ColorDoppler	AmplitudeDoppler	ColorVelocityImaging	Combined(Specify)	Other(Specify)
Ophthalmic
Fetal
Abdominal
Intraoperative
IntraoperativeNeurological
Pediatric		P	P	P		P	P		BMCD
Small Organ(Note 1)		P	P	P		P	P		BMCD
Neonatal Cephalic
Adult Cephalic
Cardiac
Trans-esophageal
Transrectal
Transvaginal
Transurethral
Intravascular
Peripheral vessel		P	P	P		P	P		BMCD
Laparoscopic
Musculo-skeletalConventional		P	P	P		P	P		BMCD
Musculo-skeletalSuperficial		P	P	P		P	P		BMCD
Other (specify)

N = new indication; P = previously cleared by K180067

Additional Comments:

For example: breast, testes, thyroid, penis, prostate, etc. Note 1

(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)

Concurrence of CDRH, Office of In Vitro Diagnostic Devices (OIVD)

Division Sign-Off - Office of In Vitro Diagnostic Devices
510(k)______________________________________________________________________________________________________________

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510 (k) Number (if known):	K193257
Device Name:Intended Use:						10L4 Linear Array Transducer			Ultrasound imaging or fluid flow analysis of the human body as follows:
	Mode of Operation
Clinical Application	A	B	M	PWD	CWD	ColorDoppler	AmplitudeDoppler	ColorVelocityImaging	Combined(Specify)	Other(Specify)
Ophthalmic
Fetal		P	P	P		P	P		BMCD
Abdominal		P	P	P		P	P		BMCD
Intraoperative
IntraoperativeNeurological
Pediatric		P	P	P		P	P		BMCD
Small Organ(Note 1)		P	P	P		P	P		BMCD
Neonatal Cephalic		N	N	N		N	N		BMCD
Adult Cephalic
Cardiac
Trans-esophageal
Transrectal
Transvaginal
Transurethral
Intravascular
Peripheral vessel		P	P	P		P	P		BMCD
Laparoscopic
Musculo-skeletalConventional		P	P	P		P	P		BMCD
Musculo-skeletalSuperficial		P	P	P		P	P		BMCD
Other (specify)

N = new indication; P = previously cleared by K180067

Additional Comments:

For example: breast, testes, thyroid, penis, prostate, etc. Note 1

(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)

Concurrence of CDRH, Office of In Vitro Diagnostic Devices (OIVD)

Division Sign-Off - Office of In Vitro Diagnostic Devices 510(k)_

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510 (k) Number (if known):

K193257

Device Name: Intended Use:

9EC4 Endocavity Transducer

Ultrasound imaging or fluid flow analysis of the human body as follows:

	Mode of Operation
Clinical Application	A	B	M	PWD	CWD	ColorDoppler	AmplitudeDoppler	ColorVelocityImaging	Combined(Specify)	Other(Specify)
Ophthalmic
Fetal
Abdominal
Intraoperative
IntraoperativeNeurological
Pediatric
Small Organ(Note 1)
Neonatal Cephalic
Adult Cephalic
Cardiac
Trans-esophageal
Transrectal		P	P	P		P	P		BMCD
Transvaginal		P	P	P		P	P		BMCD
Transurethral
Intravascular
Peripheral vessel
Laparoscopic
Musculo-skeletalConventional
Musculo-skeletalSuperficial
Other (specify)

N = new indication; P = previously cleared by K180067

Additional Comments:

For example: breast, testes, thyroid, penis, prostate, etc. Note 1

(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)

Concurrence of CDRH, Office of In Vitro Diagnostic Devices (OIVD)

Division Sign-Off - Office of In Vitro Diagnostic Devices 510(k)_

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510 (k) Number (if known):	K193257
Device Name: Intended Use:	5V1 Phased Array TransducerUltrasound imaging or fluid flow analysis of the human body as follows:
		Mode of Operation
Clinical Application	A	B	M	PWD	CWD	ColorDoppler	AmplitudeDoppler	ColorVelocityImaging	Combined(Specify)	Other(Specify)
Ophthalmic
Fetal
Abdominal
Intraoperative
IntraoperativeNeurological
Pediatric		P	P	P	P	P	P		BMCD
Small Organ(Note 1)
Neonatal Cephalic
Adult Cephalic
Cardiac		P	P	P	P	P	P		BMCD
Trans-esophageal
Transrectal
Transvaginal
Transurethral
Intravascular
Peripheral vessel
Laparoscopic
Musculo-skeletalConventional
Musculo-skeletalSuperficial
Other (specify)

N = new indication; P = previously cleared by K180067

Additional Comments:

For example: breast, testes, thyroid, penis, prostate, etc. Note 1

(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)

Concurrence of CDRH, Office of In Vitro Diagnostic Devices (OIVD)

Division Sign-Off - Office of In Vitro Diagnostic Devices
510(k)______________________________________________________________________________________________________________

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510 (k) Number (if known): K193257
Device Name: 8V3 Phased Array Transducer
Intended Use: Ultrasound imaging or fluid flow analysis of the human body as follows:
										Mode of Operation
Clinical Application	A	B	M	PWD	CWD	ColorDoppler	AmplitudeDoppler	ColorVelocityImaging	Combined(Specify)	Other(Specify)
Ophthalmic
Fetal
Abdominal		P	P	P		P	P		BMCD
Intraoperative
IntraoperativeNeurological
Pediatric		P	P	P	P	P	P		BMCD
Small Organ(Note 1)
Neonatal Cephalic		N	N	N		N	N		BMCD
Adult Cephalic
Cardiac		P	P	P	P	P	P		BMCD
Trans-esophageal
Transrectal
Transvaginal
Transurethral
Intravascular
Peripheral vessel
Laparoscopic
Musculo-skeletalConventional
Musculo-skeletalSuperficial
Other (specify)

N = new indication; P = previously cleared by K180067

Additional Comments:

For example: breast, testes, thyroid, penis, prostate, etc. Note 1

(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)

Concurrence of CDRH, Office of In Vitro Diagnostic Devices (OIVD)

Division Sign-Off - Office of In Vitro Diagnostic Devices 510(k)_

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510 (k) Number (if known): K193257
Device Name:CW2 Continuous Wave TransducerIntended Use:Ultrasound imaging or fluid flow analysis of the human body as follows:
	Mode of Operation
Clinical Application	A	B	M	PWD	CWD	ColorDoppler	AmplitudeDoppler	ColorVelocityImaging	Combined(Specify)	Other(Specify)
Ophthalmic
Fetal
Abdominal
Intraoperative
IntraoperativeNeurological
Pediatric					P
Small Organ(Note 1)
Neonatal Cephalic
Adult Cephalic
Cardiac					P
Trans-esophageal
Transrectal
Transvaginal
Transurethral
Intravascular
Peripheral vessel
Laparoscopic
Musculo-skeletalConventional
Musculo-skeletalSuperficial
Other (specify)

N = new indication; P = previously cleared by K180067

Additional Comments:

For example: breast, testes, thyroid, penis, prostate, etc. Note 1

(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)

Concurrence of CDRH, Office of In Vitro Diagnostic Devices (OIVD)

Division Sign-Off - Office of In Vitro Diagnostic Devices
510(k)______________________________________________________________________________________________________________

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510 (k) Number (if known):			K193257
Device Name:10V4 Phased Array TransducerIntended Use:Ultrasound imaging or fluid flow analysis of the human body as follows:
	Mode of Operation
Clinical Application	A	B	M	PWD	CWD	ColorDoppler	AmplitudeDoppler	ColorVelocityImaging	Combined(Specify)	Other(Specify)
Ophthalmic
Fetal
Abdominal		N	N	N		N	N		BMCD
Intraoperative
IntraoperativeNeurological
Pediatric		N	N	N	N	N	N		BMCD
Small Organ(Note 1)
Neonatal Cephalic		N	N	N		N	N		BMCD
Adult Cephalic
Cardiac		N	N	N	N	N	N		BMCD
Trans-esophageal
Transrectal
Transvaginal
Transurethral
Intravascular
Peripheral vessel
Laparoscopic
Musculo-skeletalConventional
Musculo-skeletalSuperficial
Other (specify)

N = new indication; P = previously cleared by FDA

Additional Comments:

For example: breast, testes, thyroid, penis, prostate, etc. Note 1

(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)

Concurrence of CDRH, Office of In Vitro Diagnostic Devices (OIVD)

Division Sign-Off - Office of In Vitro Diagnostic Devices
510(k)______________________________________________________________________________________________________________

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510 (k) Number (if known):		K193257
Device Name:Intended Use:		18H6 Linear Array TransducerUltrasound imaging or fluid flow analysis of the human body as follows:
					Mode of Operation
Clinical Application	A	B	M	PWD	CWD	ColorDoppler	AmplitudeDoppler	ColorVelocityImaging	Combined(Specify)	Other(Specify)
Ophthalmic
Fetal
Abdominal
Intraoperative
IntraoperativeNeurological
Pediatric
Small Organ(Note 1)		N	N	N	N		N	N		BMCD
Neonatal Cephalic
Adult Cephalic
Cardiac
Trans-esophageal
Transrectal
Transvaginal
Transurethral
Intravascular
Peripheral vessel
Laparoscopic
Musculo-skeletalConventional
Musculo-skeletalSuperficial		N	N	N	N		N	N		BMCD
Other (specify)

N = new indication; P = previously cleared by FDA

Additional Comments:

For example: breast, testes, thyroid, penis, prostate, etc. Note 1

(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)

Concurrence of CDRH, Office of In Vitro Diagnostic Devices (OIVD)

Division Sign-Off - Office of In Vitro Diagnostic Devices
510(k)______________________________________________________________________________________________________________

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K193257

510(k) Summary

Date:	Jan 29, 2020
1. Sponsor:	Siemens Medical Solutions USA, Inc.,Ultrasound Division685 East Middlefield RoadMountain View, California 94043
Contact Person:	Sulgue ChoiTel: (425) 281-9898
2. Device Name:	ACUSON Sequoia Diagnostic Ultrasound System
Common Name:	Diagnostic Ultrasound System with Accessories
Classification:	Regulatory Class: IIReview Category: Tier IIClassification Panel: Radiology
	Ultrasonic Pulsed Doppler Imaging System	892.1550	90-IYN
	Ultrasonic Pulsed Echo Imaging System	892.1560	90-IYO
	Diagnostic Ultrasound Transducer	892.1570	90-ITX
Manufacturing Site:	Jabil Inc.3800 Giddings Road,Auburn Hills, Michigan, 48326, UNITED STATES
	Siemens Medical Solutions USA, Inc.22010 S.E. 51st Street,Issaquah, WA, 98029, UNITED STATES

3. Legally Marketed Predicate Devices

The ACUSON Sequoia Diagnostic Ultrasound System is a multi-purpose diagnostic ultrasound system with accessories and proprietary software, and is substantially equivalent to the company's own products, the ACUSON X800 (K180067) which is primary predicated device and the ACUSON S family (K172162).

The additional predicates are the indications for Neonatal Cephalic and 18H6, 10V4 transducers which are cleared under ACUSON S family (K172162) as described in the table of section 6 Summary of Technological Characteristics.

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4. Device Description

5. Intended Use

The ACUSON Sequoia ultrasound imaging system is intended to provide images of, or signals from, inside the body by an appropriately trained healthcare professional in a clinical setting for the following applications: Fetal, Abdominal, Pediatric, Neonatal Cephalic, Small Parts, OB/GYN (useful for visualization of the ovaries, follicles, uterus and other pelvic structures), Cardiac, Pelvic, Vascular, Musculoskeletal and Peripheral Vascular applications.

The system also provides the ability to measure anatomical structures for fetal, abdominal, pediatric, small organ, cardiac, transvaqinal, peripheral vessel, musculoskeletal 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.

6. Summary of Technological Characteristics

The modified ACUSON Sequoia Ultrasound System is the same as the company's own previously cleared ACUSON X800 (K180067) and the ACUSON S family (K172162) with regard to both intended use and technological characteristics. Both the modified ultrasound system under this review and the predicate ultrasound systems function in the same manner as all diagnostic ultrasound systems and transducers.

The submission device differs from the predicated devices as following:

. The modified ACUSON Sequoia Ultrasound System includes the addition of the 18H6 transducer. The 18H6 transducer is similar to the 14L5 SP in its indications for use, however is technologically different due to the number of elements (14L5 SP =128 elements and 18H6=192 elements). The 14L5 SP was cleared as a part of the ACUSON S Family under K172162.
The modified ACUSON Sequoia Ultrasound System includes the addition of the 10V4. This identical transducer has been previously cleared on the ACUSON S family (K172162)
. The modified ACUSON Sequoia Ultrasound System includes the addition of the 'Neonatal cephalic' clinical application. The identical 'Neonatal cephalic' clinical application has been previously cleared on the ACUSON S family (K172162)

All other hardware and software features of the ACUSON Sequoia Diagnostic Ultrasound device remain unchanged. The ACUSON Sequoia system will be updated with the VA11A software version which will support the additional 18H6 and 10V4 transducers and the 'Neonatal cephalic' clinical application.

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ACUSON Sequoia Diagnostic Ultrasound System 510(k) Submission

The ACUSON Sequoia with software version VA11A is substantially equivalent to the predicate devices with regard to both the intended use, indications for use and technological characteristics. The table below compares the technological characteristics between the submission device and the predicated devices.

Feature / Characteristic	ACUSON SequoiaThis Submission	ACUSON X800K# 180067	ACUSON S familyS1000/S2000/S3000K# 172162
Indications for Use:
Fetal	√	√
Abdominal	√	√
Pediatric	√	√
Small Organ	√	√
Cardiac	√	√
Transrectal	√	√
Transvaginal	√	√
Peripheral vessel	√	√
Musculo-skeletal(conventional)	√	√
Musculo-skeletal(superficial)	√	√
Neonatal cephalic	√	-
Frequencies Supported:	(1.0MHZ~18MHz)	(1.0MHZ~18MHz)	(2.0MHz~17MHz)
Modes:
B	√	√
M	√	√
PWD (Pulsed WaveDoppler)	√	√
CWD (Continuous WaveDoppler)	√	√
PW DTI (Doppler TissueImage)	√	√
Color Doppler	√	√
Power Doppler	√	√
Combined (BMDC)	√	√
Features:
Harmonic imaging	√	√
Panoramic imaging	√	√
Color Panoramic imaging	√	√
Auto TEQ	√	√
Cardiac Imagingphysiological signal display	√	√
eSie OB	√	√
Compounding	√	√
Contrast imaging	√	√
Clarify	√	√
Virtual Touch - Strain	√	√
Feature / Characteristic	ACUSON SequoiaThis Submission	ACUSON X800K# 180067	ACUSON S familyS1000/S2000/S3000K# 172162
■ syngo® Velocity VectorImaging	√	√
■ eSie Calc	√	√
■ Speed of Sound	√	√
■ Fusion	√	√
■ Virtual Touch – pSWE	√	√
■ Virtual Touch – SWE	√	√
■ UltraArt	√	√
■ Modality Compare	√	√
■ HD Zoom	√	√
■ Protocols	√	√
■ InFocus	√	√
■ Flash sequencing	√	√
■ Gesture control	√	√
■ TeamViewer	√	√
■ Motion StabilizedPersistence	√	√
■ DICOM	√	√
■ DICOM SR	√	√
Wireless	√	√
Monitor: 21" FPD (OLED)	√	√
Touch Screen: 15"adjustable Touch Screen	√	√
Output Display Standard(Track 3)	√	√
Patient Contact Materials	Tested to ISO 10993-1	Tested to ISO 10993-1
UL 60601-1 Certified	√	√
Indications for Use	√	√

ACUSON Sequoia Diagnostic Ultrasound System 510(k) Submission

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Siemens Medical Solutions USA, Inc. Ultrasound Division

ACUSON Sequoia Diagnostic Ultrasound System 510(k) Submission

7. A brief discussion of nonclinical tests submitted, referenced, or relied on in the 510(k) for a determination of substantial equivalence

The device has been evaluated for acoustic output, biocompatibility, cleaning and disinfection effectiveness as well as thermal, electrical, electromagnetic and mechanical safety and have been found to conform to applicable medical device safety standards. The systems comply with the following voluntary standards:

. IEC 62359:2010, Ultrasonics - Field characterization - Test methods for the determination of thermal and mechanical indices related to medical diagnostic ultrasonic fields / This document and its separate amendments continue to be valid together with the consolidated version.
. Safety and EMC Requirements for Medical Equipment
- o AAMI ES60601-1:2005/(R)2012 and A1:2012, C1:2009/(R)2012 and A2:2010/(R)2012 (Consolidated Text) Medical electrical equipment - Part 1: General requirements for basic safety and essential performance (IEC 60601-1:2005)

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IEC 60601-1:2005, Medical electrical equipment Part 1: General requirements O for basic safety and essential performance / This document and its separate amendments continue to be valid together with the consolidated version
O IEC 60601-1-2 Edition 4.0 2014-02, Medical electrical equipment - Part 1-2: General requirements for basic safety and essential performance - Collateral Standard: Electromaqnetic disturbances - Requirements and tests
IEC 60601-2-18: Edition 3.0 2009-08, Medical electrical equipment Part 2-18: O Particular requirements for the basic safety and essential performance of endoscopic equipment
IEC 60601-2-37 Edition 2.1 2015, Medical electrical equipment Part 2-37: O Particular requirements for the basic safety and essential performance of ultrasonic medical diagnostic and monitoring equipment
트 ISO 10993-1 Fourth edition 2009-10-15, Biological evaluation of medical devices - Part 1: Evaluation and testing within a risk management process [Including: Technical Corrigendum 1 (2010)]

8. A summary discussion of the clinical tests submitted, referenced, or relied on for a determination of substantial equivalence.

Since the ACUSON Sequoia Diagnostic Ultrasound System uses the same technology and principles as existing devices, clinical studies were not required to support substantial equivalence.

9. Summary

Intended uses and other key features are consistent with traditional clinical practice and FDA guidelines. The design and development process of the manufacturer conforms to 21 CFR 820 Quality System Regulation and ISO 13485:2016 quality system standards. The product is designed to conform to applicable medical device safety standards and compliance is verified through independent evaluation with ongoing factory surveillance. Diagnostic ultrasound system has accumulated a long history of safe and effective performance. Therefore, it is the opinion of Siemens Medical Solutions USA, Inc. that the ACUSON Sequoia system is substantially equivalent with respect to safety and effectiveness to devices currently cleared for market.

Regulation Number and Section

§ 892.1550 Ultrasonic pulsed doppler imaging system.

(a)
Identification. An ultrasonic pulsed doppler imaging system is a device that combines the features of continuous wave doppler-effect technology with pulsed-echo effect technology and is intended to determine stationary body tissue characteristics, such as depth or location of tissue interfaces or dynamic tissue characteristics such as velocity of blood or tissue motion. This generic type of device may include signal analysis and display equipment, patient and equipment supports, component parts, and accessories.(b)
Classification. Class II.