K Number
K983317
Device Name
BARRON MICROKERATOME SYSTEM, MODEL B2000
Date Cleared
1998-12-02

(72 days)

Product Code
Regulation Number
886.4370
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdparty
Intended Use
The Barron Microkeratome System is indicated for performing lamellar sectioning of the cornea.
Device Description
The Barron Microkeratome System consists of two components: a single-use Microkeratome and a Control Console that provides 9V DC and vacuum to the Microkeratome. The Barron Microkeratome is designed to perform a lamellar section of the cornea to vield a flap of predetermined diameter, thickness, and flap hinge width. The product will be offered in various sizes to provide flap diameters from 7.5 mm to 10.5 mm, and flap thickness of 130 um, and 180 um. The lamellar section is obtained by an oscillating stainless steel blade that is driven by a small motor in the Microkeratome. The Microkeratome is fixated on the eye by use of vacuum which is applied to a Vacuum Ring that seats on the eye. The vacuum exhaust from the Microkeratome is isolated from the ambient atmosphere by a 0.45-um hydrophobic filter. The Microkeratome is supplied in a sterile package, and includes all components that are necessary to perform the section. The package contains the fully assembled and inspected Microkeratome including Vacuum Ring, Luer Lok connector with filter, Vacuum Tubing, Blade, Electrical wire, and Electrical connector. There are no reusable components to be sterilized, and there are no reusable motor and drive mechanisms that are subject to long term wear. The entire Microkeratome, including the motor and the blade drive mechanism, are disposable. The only reusable portion of the Barron Microkeratome is the electronic Control Console, which is outside the operative sterile field.
More Information

Not Found

No
The description focuses on mechanical components (blade, motor, vacuum) and electrical control, with no mention of AI, ML, image processing, or data-driven decision making.

No.
This device is designed to perform a surgical procedure (lamellar sectioning of the cornea) rather than directly treating a disease or condition. While its use might be part of a therapeutic intervention, the device itself is a surgical instrument.

No

The device description clearly states its purpose is to perform lamellar sectioning of the cornea to create a flap, which is a surgical procedure, not a diagnostic one.

No

The device description clearly outlines hardware components including a single-use Microkeratome with a motor, blade, vacuum ring, tubing, and electrical components, as well as a reusable Control Console. This is not a software-only device.

Based on the provided information, the Barron Microkeratome System is not an IVD (In Vitro Diagnostic) device.

Here's why:

  • Intended Use: The intended use is "performing lamellar sectioning of the cornea." This is a surgical procedure performed directly on a living patient's eye.
  • Device Description: The device is a surgical instrument designed to cut tissue (the cornea). It is used to prepare the eye for procedures like LASIK.
  • IVD Definition: In vitro diagnostic devices are used to examine specimens (like blood, urine, or tissue samples) taken from the human body to provide information for diagnosis, monitoring, or screening. The Barron Microkeratome System does not analyze any specimens.

The device is a surgical tool used on the body, not a device used to analyze samples from the body.

N/A

Intended Use / Indications for Use

The Barron Microkeratome is intended to be used for creating a lamellar section from the cornea to create a flap with predetermined diameter, thickness, and flap hinge width.

The Barron Microkeratome System is indicated for performing lamellar sectioning of the cornea.

Product codes

86HNO

Device Description

The Barron Microkeratome System consists of two components: a single-use Microkeratome and a Control Console that provides 9V DC and vacuum to the Microkeratome.

The Barron Microkeratome is designed to perform a lamellar section of the cornea to vield a flap of predetermined diameter, thickness, and flap hinge width. The product will be offered in various sizes to provide flap diameters from 7.5 mm to 10.5 mm, and flap thickness of 130 um, and 180 um. The lamellar section is obtained by an oscillating stainless steel blade that is driven by a small motor in the Microkeratome. The Microkeratome is fixated on the eye by use of vacuum which is applied to a Vacuum Ring that seats on the eye. The vacuum exhaust from the Microkeratome is isolated from the ambient atmosphere by a 0.45-um hydrophobic filter.

The Microkeratome is supplied in a sterile package, and includes all components that are necessary to perform the section. The package contains the fully assembled and inspected Microkeratome including Vacuum Ring, Luer Lok connector with filter, Vacuum Tubing, Blade, Electrical wire, and Electrical connector. There are no reusable components to be sterilized, and there are no reusable motor and drive mechanisms that are subject to long term wear. The entire Microkeratome, including the motor and the blade drive mechanism, are disposable. The only reusable portion of the Barron Microkeratome is the electronic Control Console, which is outside the operative sterile field.

Mentions image processing

Not Found

Mentions AI, DNN, or ML

Not Found

Input Imaging Modality

Not Found

Anatomical Site

Cornea

Indicated Patient Age Range

Not Found

Intended User / Care Setting

Not Found

Description of the training set, sample size, data source, and annotation protocol

Not Found

Description of the test set, sample size, data source, and annotation protocol

Non-clinical testing on porcine eyes and cadaver eyes was found to result in corneal lamellar sections equivalent to predicate devices.

Summary of Performance Studies (study type, sample size, AUC, MRMC, standalone performance, key results)

The Barron Microkeratome System has been designed and tested to applicable safety standards such as IEC60601-1, Medical Electrical Equipment - Part 1:General The specifications and intended use of the Barron Requirements for Safety . Microkeratome are the same or very similar to predicate devices. Non-clinical testing on porcine eyes and cadaver eyes was found to result in corneal lamellar sections equivalent to predicate devices. Therefore, the technological differences between the Barron Microkeratome System and predicate devices do not raise any new issues of safety, effectiveness, or performance of the product.

Key Metrics (Sensitivity, Specificity, PPV, NPV, etc.)

Not Found

Predicate Device(s)

K974004, K913697, K973294, K903912

Reference Device(s)

Not Found

Predetermined Change Control Plan (PCCP) - All Relevant Information

Not Found

§ 886.4370 Keratome.

(a)
Identification. A keratome is an AC-powered or battery-powered device intended to shave tissue from sections of the cornea for a lamellar (partial thickness) transplant.(b)
Classification. Class I.

0

K 983317

2 1998 DEC

Barron Precision Instruments, L.L.C.

Document: FDA 510(k) Application

Subject: Barron Microkeratome System

Section: 11 Revision: 1.1 Effective Date: 9/14/98 Page: 1 of 4

Issued by: M.B. Barron

SECTION 11 - 510(k) SUMMARY

This 510(k) summary of safety and effectiveness for the Barron Microkeratome System is being submitted in accordance with the requirements of SMDA 1990 and 21 CFR 807.92, and boling oubrinted in doevice Evaluation guidance concerning the presentation and content of a 510(k) summary.

    1. Submitter's name, address, telephone number, contact person, and date the summary was prepared:
      a. Applicant

Barron Precision Instruments, L.L.C. PO Box 973 8170 Embury Road Grand Blanc, MI 48439

(810) 695-2080 b. Telephone Number ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------(810) 695-0948 .. Mark Barron c. Contact Person

d. Date Summary Prepared

September 14, 1998

General Manager

    1. Name of the Device, including trade name, the common or usual name, and the classification
a. Device Trade NameBarron Microkeratome System Model B2000
b. Common nameKeratome
c. Classification NameKeratome, AC-Powered
Ophthalmology (21 CFR 886.4370)
d. Class of DeviceClass I
e. Product Code86HNO

1

3. Identification of legally marketed predicate devices to which equivalence is being claimed

CompanyDevice510(k)
LaserSight TechnologiesAutomated Disposable KeratomeK974004
Hansa Research & DevelopmentAutomated Corneal ShaperK913697
Innovative Optics, Inc.INNOVATOMEK973294
Micro Precision Instrument CoMicro Refractive System Model 1000K903912

4. Description of the Device

The Barron Microkeratome System consists of two components: a single-use Microkeratome and a Control Console that provides 9V DC and vacuum to the Microkeratome.

The Barron Microkeratome is designed to perform a lamellar section of the cornea to vield a flap of predetermined diameter, thickness, and flap hinge width. The product will be offered in various sizes to provide flap diameters from 7.5 mm to 10.5 mm, and flap thickness of 130 um, and 180 um. The lamellar section is obtained by an oscillating stainless steel blade that is driven by a small motor in the Microkeratome. The Microkeratome is fixated on the eye by use of vacuum which is applied to a Vacuum Ring that seats on the eye. The vacuum exhaust from the Microkeratome is isolated from the ambient atmosphere by a 0.45-um hydrophobic filter.

The Microkeratome is supplied in a sterile package, and includes all components that are necessary to perform the section. The package contains the fully assembled and inspected Microkeratome including Vacuum Ring, Luer Lok connector with filter, Vacuum Tubing, Blade, Electrical wire, and Electrical connector. There are no reusable components to be sterilized, and there are no reusable motor and drive mechanisms that are subject to long term wear. The entire Microkeratome, including the motor and the blade drive mechanism, are disposable. The only reusable portion of the Barron Microkeratome is the electronic Control Console, which is outside the operative sterile field.

5. Intended use of the device

The Barron Microkeratome is intended to be used for creating a lamellar section from the cornea to create a flap with predetermined diameter, thickness, and flap hinge width.

2

6. Summary of the technological characteristics of the submitted device compared to predicate devices

Predicate #1Predicate #2Predicate #3Predicate #4
510(k): K974004510(k): K913697510(k): K973294510(k): K903912
ParameterBarron PrecisionLasersightChiron VisionInnovative OpticsMicro Precision
Indications for usePartial Anterior
Circular Lamellar
Resection of the
Cornea.Shaving a Partial
Lamellar Section
of the CorneaInitial Lamellar
Corneal
ResectionsResection of a
Circular Anterior
Lamellar FlapLamellar
Sectioning of the
Cornea
Suction Ring1 Fixed Height
Suction Ring
(Disposable -
Stainless Steel)1 Fixed Height
Suction Ring
(Disposable -
Plastic)1 Adjustable
Height Suction
Ring (Reusable
Stainless Steel)1 Fixed Height
Suction Ring
(Reusable
Stainless Steel)20 Suction Rings
(Reusable
Stainless Steel)
Thickness ControlFixed Depth
Keratome Head
(130u, 160u, or
180u)Fixed Depth
Keratome Head
(130u or 160u)Adjustable
Keatome Head to
180uFixed at 175u1-500u Variable
Blade Drive
SourceElectric Motor 9V
DC (Disposable)Electric Motor
12V DC
(Reusable)Electric Motor
12V DC
(Reusable)Electric Motor in
Console
(Reusable)Turbine Motor
(Reusable)
Blade SpeedBlade Oscillation
20,000 RPMBlade Oscillation
10,000 RPMBlade Oscillation
7,500 RPM12,000 RPM0-20,000 RPM
Blade Angle25°25°25°Not Stated
Blade MovementReciprocating
SidewaysReciprocating
SidewaysReciprocating
SidewaysReciprocating
SidewaysReciprocating
Sideways
Blade MaterialStainless SteelStainless SteelStainless SteelStainless SteelStainless Steel
Flap DiameterFixed at 8 or
9.5mmFixed at 9.5mmVariable to 9mmVariable 8 to
10mmVariable 7.5-
8.5mm
Keratome Head
MovementManualAutomaticAutomaticAutomaticManual
Console Details
ElectricalUniversal AC -
85V to 260V110/120 AC110/120 ACAC PoweredNone
Vacuum PumpDC PoweredAC PoweredAC PoweredAC PoweredNitrogen Gas
Venturi
Blade Height
VerificationAt Factory with
Optical
ComparatorAt Factory with
Optical
ComparatorClinic Measured
with MicroscopeAt FactoryClinic Measured
with Digital
Indicator
Foot ControlsDC PoweredDC PoweredDC PoweredDC PoweredPneumatic

Comparative Technological Characteristics

3

7. Brief discussion of non-clinical tests and results

The Barron Microkeratome System has been designed and tested to applicable safety standards such as IEC60601-1, Medical Electrical Equipment - Part 1:General The specifications and intended use of the Barron Requirements for Safety . Microkeratome are the same or very similar to predicate devices. Non-clinical testing on porcine eyes and cadaver eyes was found to result in corneal lamellar sections equivalent to predicate devices. Therefore, the technological differences between the Barron Microkeratome System and predicate devices do not raise any new issues of safety, effectiveness, or performance of the product.

4

Image /page/4/Picture/1 description: The image is a black and white logo for the U.S. Department of Health & Human Services. The logo features a stylized image of an eagle or bird with three curved lines representing its wings or feathers. The bird is facing to the right. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" is arranged in a circular pattern around the bird.

Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850

2 1998 DEC

Mr. Mark Barron General Manager Barron Precision Instruments, L.L.C. PO Box 973 8170 Embury Road Grand Blanc, Michigan 48439-0973

Re: K983317 Trade Name: Barron Microkeratome System Model B2000 Regulatory Class: I Product Code: 86 HNO Dated: November 16, 1998 Received: November 20, 1998

Dear Mr. Barron:

We have reviewed your Section 510(k) 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 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.

If your device is classified (see above) into either class II (Special Controls) or class III (Premarket Approval), 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 895. A substantially equivalent determination assumes compliance with the current Good Manufacturing Practice requirements, as set forth in the Quality System Regulation (QS) for Medical Devices: General regulation (21 CFR Part 820) and that, through periodic (QS) inspections, the Food and Drug Administration (FDA) will verify such assumptions. Failure to comply with the GMP regulation may result in regulatory action. In addition, FDA may publish further announcements concerning your device in the Federal Register. Please note: this response to your premarket notification submission does not affect any obligation you might have under sections 531 through 542 of the Act for devices under the Electronic Product Radiation Control provisions, or other Federal laws or regulations .

5

Page 2 - Mr. Mark Barron

This letter will allow you to begin marketing your device as described in your 510(k) 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 the market.

If you desire specific advice for your device on our labeling regulation (21 CFR Part 801 and additionally 809.10 for in vitro diagnostic devices), please contact the Office of Compliance at (301) 594-4613. 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 807.97). Other general information on your responsibilities under the Act may be obtained from the Division of Small Manufacturers Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its internet address "http://www.fda.gov/cdrh/dsmamain.html".

Sincerely yours,

A Roerl lorentthal

A. Ralph Rosenthal, M.D. Director Division of Ophthalmic Devices Office of Device Evaluation Center for Devices and Radiological Health

Enclosure

6

INDICATIONS FOR USE

Page 1 of 1

510(k) NUMBER: K983317

DEVICE NAME: Barron Microkeratome System, Model 2000

INDICATIONS FOR USE:

The Barron Microkeratome System is indicated for performing lamellar sectioning of the cornea.

(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) OR

Over-The-Counter-Use (Optional Format 1-2-96)

Dennis L. McCarthy

Division of Ophthalmic Devices
510(k) Number K983317