This instrument is designed as an ophthalmic diagnostic instrument that performs both Amode and B-mode ultrasound. In B-mode, the instrument acquires an ultrasonic crosssectional image of echoes from ocular structures. The brightness of the various dots in the two-dimensional image depends on the intensity of the echo sources. In A-mode, the instrument provides a one-dimensional display of returning echoes. Positive waves indicate the location of ocular structures; the distances between spikes can be measured.

The B-scan probe transmits focused ultrasonic waves into the eyeball. The transducer oscillates back and forth, resulting in a two-dimensional cross-sectional image view of the ocular structures. The image represents a "slice" through the portion of eye that is being examined. The ultrasonic beam focus range is controlled by six annular oscillators that are arranged concentrically. Multiple images can be saved and played back at the most appropriate resolution.

The B-scan probe is used to indirectly measure axial length based on a linear sampling of the image of the eye. Although this measurement is less accurate than axial length measurement by A-scan biometry, it provides a useful approximation in patients unable to maintain a steady primary gaze or in eyes with dense cataract, detached retina or posterior staphyloma.

The A-scan probe emits a non-focused ultrasound beam that results in a one-dimensional representation of echoes returned from ocular structures through which the beam passes. Ocular abnormalitites may be identified and evaluated by assessing the location and amplitude of the spikes produced by various ocular tissues.

The instrument control panel is a touch panel with membrane switch, rotary encoder and foot switch.

AI/ML Overview

The provided text states, "Performance Data: None. The specifications and indications for use of the UD-1000 A/B Scanner are the same or very similar to those of the claimed predicate devices. The UD-1000 has the same indications for use for which the claimed predicates have been cleared and has no additional indications for use. Because of this, performance data were not required."

Therefore, based on the provided input, no acceptance criteria or study demonstrating that the device meets acceptance criteria are described. The manufacturer asserted substantial equivalence to predicate devices, and as such, performance data, including details on acceptance criteria, test sets, ground truth establishment, or multi-reader multi-case studies, were not required.

Summary

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K020151
Page 1 of 2

510(K) SUMMARY UD-1000 A/B Scanner

This 510(K) summary of safety and effectiveness for the UD-1000 A/B Scanner is submitted in accordance Title JTQ(K) Suffinial For Sales) and Clows Office of Device Evaluation guidance concerning the organization and content of a 510(K) summary.

Applicant:	Tomey Corporation USA
------------	-----------------------

300 Second Avenue Address: Waltham, MA 02451

Contact Person: Rick Mahoney Director of Business Development

781-890-1515 Telephone: 781-290-5885 (fax)

Preparation Date: January, 2002 (of the Summary)

Device Name: UD-1000 A/B Scanner

Common Name: Biometer

Classification	System, Imaging, Pulsed Echo, Ultrasonic
Name:	(see: 21 CFR 892.1560). Product Code: IYO. Panel: 90.

Legally marketed

predicate

devices:

Biophysic Medical Ophthascan B (K844686), Nidek US-3000 (K882162), Humphrey Instruments, Inc. Ophthalmic A/B Scan System Model 835 (K923348/A), and Paradigm Medical Industries, Inc. UBM Plus Model P45 (K003141).

Description of the Device:

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KO20151
Page 2 of 2

The instrument control panel is a touch panel with membrane switch, rotary encoder and foot switch.

Indications for Use:

The UD-1000 A/B Scanner is indicated for:

Ultrasound imaging of the eye and orbit ●
Producing axial measurements of the eye .
Imaging the intraocular anatomy and pathology of the eye .
Imaging the anterior segment of the eye .
Imaging the anterior angle for Glaucoma Management .
Imaging of other structures of the anterior chamber .

Comparison toClaimedPredicates:	The specifications of the UD-1000 A/B Scanner are the same or very similar to those ofthe claimed predicates.
PerformanceData:	None. The specifications and indications for use of the UD-1000 A/B Scannerare the same or very similar to those of the claimed predicate devices. The UD-1000 hasthe same indications for use for which the claimed predicates have been cleared and hasno additional indications for use.
	Because of this, performance data were not required.
Conclusion:	Based on the foregoing, Tomey believes that the UD-1000 A/B Scanner is substantiallyequivalent to legally marketed predicate devices.

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DEPARTMENT OF HEALTH & HUMAN SERVICES

ood and Drug Administration 9200 Corporate Boulevard Rockville MD 20850

Tomey Corporation USA % Ms. Maureen O'Connell Regulatory Consultant 5 Timber Lane NORTH READING MA 01864

Re: K020151

Trade Name: UD-1000 Ultrasonic A/B Scanner Ophthalmic Biometer Regulation Number: 21 CFR 892.1560 Regulation Name: Ultrasonic pulsed echo imaging system Regulatory Class: II Product Code: 90 IYO Dated: January 11, 2002 Received: January 16, 2002

Dear Ms. O'Connell:

We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and we 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). You may, therefore, market the device, subject to the general controls provisions of the Act. 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.

This determination of substantial equivalence applies to the following transducers intended for use with the UD-1000 Ultrasonic A/B Scanner Ophthalmic Biometer, as described in your premarket notification:

Transducer Model Number

B-Scan 10 MHz A-Scan 10 MHz

If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to such 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.

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Page 2 - Ms. O'Connell

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 801); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.

This determination of substantial equivalence is granted on the condition that prior to shipping the first device, you submit a postclearance special report. This report should contain complete information, including acoustic output measurements based on production line devices, requested in Appendix G, (enclosed) of the Center's September 30, 1997 "Information for Manufacturers Seeking Marketing Clearance of Diagnostic Ultrasound Systems and Transducers." If the special report is incomplete or contains unacceptable values (e.g., acoustic output greater than approved levels), then the 510(k) clearance may not apply to the production units which as a result may be considered adulterated or misbranded.

The special report should reference the manufacturer's 510(k) number. It should be clearly and prominently marked "ADD-TO-FILE" and should be submitted in duplicate to:

Food and Drug Administration Center for Devices and Radiological Health Document Mail Center (HFZ-401) 9200 Corporate Boulevard Rockville, Maryland 20850

This letter will allow you to begin marketing your device as described in your premarket notification. The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus permits your device to proceed to market.

If you desire specific advice for your device on our labeling regulation (21 CFR Part 801, please contact the Office of Compliance at (301) 594-4591. Additionally, for questions on the promotion and advertising of your device, please contact the Office of Compliance at (301) 594-4639. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). Other general information on your responsibilities under the Act may be obtained from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or at (301) 443-6597 or at its Internet address "http://www.fda.gov/cdrh/dsmamain.html".

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Page 3 - Ms. O'Connell

If you have any questions regarding the content of this letter, please contact Joseph Arnaudo at (301) 594-1212.

Sincerely yours,

David C. Seymour
for Nancy C. Brogdon

Director, Division of Reproductive, Abdominal and Radiological Devices Office of Device Evaluation Center for Devices and Radiological Health

Enclosure(s)

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Image /page/5/Picture/0 description: The image shows a handwritten word that appears to be "system". The letters are written in a cursive style, with some connections between the letters. The writing is in black ink on a white background. The word is slightly tilted.

Diagnostic Ultrasound Indications for Use Form

System:UD-1000

Transducer:

Intended Use: Diagnostic ultrasound imaging or fluid flow analysis of the human body as follows:

ClinicalApplication	Mode of Operation
	A	B	M	PWD	CWD	ColorDoppler	AmplitudeDoppler	ColorVelocityImaging	Combined	Other(specify)
Ophthalmic	N	N
Fetal
Abdominal
Intraoperative
Intraoperative
Neurological
Pediatric
Small Organ
Neonatal
Cephalic
Adult Cephalic
Cardiac
Transesophageal
Transrectal
Transvaginal
Transurethral
Intravascular
PeripheralVascular
Laparoscopic
Musculo-skeletalConventional
Musculo-skeletalSuperficial
Other (specify)

N=new indication; P=previously cleared by FDA; E=added under Appendix E

Additional Comments:

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

Concurrence of CDRH, Office of Device Evaluation (ODE)

Prescription Use (Per 21 CFR 801.109)

Daniel R. Aydenm

Reproductive, Abdominal, cical Devices 510

{6}------------------------------------------------

Diagnostic Ultrasound Indications for Use Form

System:

Transducer: B-Scan 10 MHz

Intended Use: Diagnostic ultrasound imaging or fluid flow analysis of the human body as follows

Clinical	Mode of Operation
Application	A	B	M	PWD	CWD	ColorDoppler	AmplitudeDoppler	ColorVelocityImaging
Ophthalmic		N
Fetal
Abdominal
Intraoperative
Intraoperative
Neurological
Pediatric
Small Organ
Neonatal
Cephalic
Adult Cephalic
Cardiac
Transesophageal
Transrectal
Transvaginal
Transurethral
Intravascular
Peripheral
Vascular
Laparoscopic
Musculo-skeletalConventional
Musculo-skeletalSuperficial
Other (specify)

Other (Specify)
N=new indication; P=previously cleared by FDA; E=added under Appendix E

Additional Comments:_

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

Concurrence of CDRH, Office of Device Evaluation (ODE)

Prescription Use (Per 21 CFR 801.109)
---------------------------------------

(Division Sign-Off) ion of Reproductive, Abdominal, and Radiological Device 510(k) Number

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Diagnostic Ultrasound Indications for Use Form

System:

Transducer: A-Scan 10 MHz

Intended Use: Diagnostic ultrasound imaging or fluid flow analysis of the human body as follows:

ClinicalApplication	Mode of Operation
	A	B	M	PWD	CWD	ColorDoppler	AmplitudeDoppler	ColorVelocityImaging	Combined	Other(specify)
Ophthalmic	N
Fetal
Abdominal
Intraoperative
Intraoperative
Neurological
Pediatric
Small Organ
Neonatal
Cephalic
Adult Cephalic
Cardiac
Transesophageal
Transrectal
Transvaginal
Transurethral
Intravascular
PeripheralVascular
Laparoscopic
Musculo-skeletalConventional
Musculo-skeletalSuperficial
Other (specify)

N=new indication; P=previously cleared by FDA; E=added under Appendix E

Additional Comments:_

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

Concurrence of CDRH, Office of Device Evaluation (ODE)

Prescription Use (Per)21 CFR 801.109)

David A. Lyon

(Division Sign-Off) Division of Reproductive, Abdominal and Radiological Devices 510(k) Number

00011

Regulation Number and Section

N/A