K Number
K990227
Device Name
ULTRASHAPER KERATOME
Date Cleared
2000-01-31

(371 days)

Product Code
Regulation Number
886.4370
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP Authorized
Intended Use
The UltraShaper™ System is an AC-powered device that is intended to shave a partial lamella section of the cornea.
Device Description
The UltraShaper™ System consists of the following components: (a) cutting head, (b) suction rings / handles, (c) motor handpiece, (d) handpiece-to-console cable, (e) suction tubing set, (g) blade assembly, and (h) console power / suction supply with foot actuated switches. The cutting head and suction rings / handles are constructed entirely from stainless steel. The UltraShaper™ System is designed to perform anterior lamellar circular corneal resections of a predetermined diameter and thickness based upon the principle of a carpenter's plane. A cutting blade emerges from the center of the keratome plane. The stainless steel blade oscillates by a small DC motor (in the motor handpiece) controlled by foot switch. The cutting head slides on dovetail guides on a circular suction ring. The cutting head contains a gear drive train that engages a gear rack on one side of the suction ring to drive the keratome head across the suction ring and cornea. The suction ring provides an annular vacuum chamber for temporary attachment to the ocular globe. The cutting head has a fixed foot plate and is available in three standard head sizes, 130, 160 and 180 microns, depending on the thickness of the corneal section desired. There are also three different suction ring / handle sizes available to accommodate the variations in corneal curvature from patient to patient. A (motor handpiece-to-console) cable is also supplied with each UltraShaper™ keratome. The UltraShaper™ Console Power Supply provides the power to both the keratome motor and the suction supply for holding the ring in place on the cornea. This is the same console which drives the company's ADK disposable keratome. The console has three vacuum suction settings, HIGH, LOW, OFF. The console will only permit the keratome to operate (transverse the cutting plane) while in the HIGH setting. While in the HIGH mode, the console, with its internal barometer, reacts to vacuum suctions values which are below the optimum by signaling the operator with audible and visual warnings. The UltraShaper™ Console Power Supply conforms to IEC-601-1 electrical safety standard. A sterile suction tubing set, which is generic to several keratome systems, is used to connect the suction ring / handle of the UltraShaper™ to the suction port on the console. Suction tubing sets are supplied sterile and are intended for single use. Likewise, keratome blades are supplied sterile and are intended for single use.
More Information

Not Found

No
The device description focuses on mechanical components, motor control, and vacuum systems. There is no mention of AI or ML in the intended use, device description, or performance studies.

Yes

The device is intended to shave a partial lamella section of the cornea, which is a therapeutic intervention for a medical condition or to improve bodily function.

No
The device description and intended use clearly state that the UltraShaper™ System is an AC-powered device intended to shave a partial lamella section of the cornea, which is a surgical or therapeutic function, not a diagnostic one.

No

The device description explicitly lists multiple hardware components including a cutting head, suction rings, motor handpiece, cables, tubing, blade assembly, and a console power/suction supply. It describes the physical interaction and mechanical operation of these components.

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

Here's why:

  • Intended Use: The intended use is to "shave a partial lamella section of the cornea." This is a surgical procedure performed directly on a living patient's tissue.
  • Device Description: The description details a mechanical system for cutting and manipulating corneal tissue during surgery. It involves components like cutting heads, suction rings, motors, and power supplies.
  • Lack of Diagnostic Purpose: There is no mention of the device being used to analyze samples (like blood, urine, or tissue) outside of the body to diagnose a condition, monitor treatment, or screen for diseases.
  • Anatomical Site: The device operates on the cornea, which is part of the living eye.
  • Performance Studies: The performance studies mentioned refer to clinical results in terms of postoperative refraction and visual acuity, which are outcomes of a surgical procedure, not diagnostic test results.

IVD devices are specifically designed to be used in vitro (outside the body) to examine specimens derived from the human body for the purpose of providing information for diagnosis, monitoring, or screening. The UltraShaper™ System is clearly an in vivo surgical device.

N/A

Intended Use / Indications for Use

The UltraShaper™ System is an AC-powered device that is intended to shave a partial lamella section of the cornea.

Product codes (comma separated list FDA assigned to the subject device)

86 HNO

Device Description

The UltraShaper™ System consists of the following components: (a) cutting head, (b) suction rings / handles, (c) motor handpiece, (d) handpiece-to-console cable, (e) suction tubing set, (g) blade assembly, and (h) console power / suction supply with foot actuated switches.

The cutting head and suction rings / handles are constructed entirely from stainless steel. The UltraShaper™ System is designed to perform anterior lamellar circular corneal resections of a predetermined diameter and thickness based upon the principle of a carpenter's plane. A cutting blade emerges from the center of the keratome plane. The stainless steel blade oscillates by a small DC motor (in the motor handpiece) controlled by foot switch. The cutting head slides on dovetail guides on a circular suction ring. The cutting head contains a gear drive train that engages a gear rack on one side of the suction ring to drive the keratome head across the suction ring and cornea. The suction ring provides an annular vacuum chamber for temporary attachment to the ocular globe. The cutting head has a fixed foot plate and is available in three standard head sizes, 130, 160 and 180 microns, depending on the thickness of the corneal section desired. There are also three different suction ring / handle sizes available to accommodate the variations in corneal curvature from patient to patient. A (motor handpiece-to-console) cable is also supplied with each UltraShaper™ keratome.

The UltraShaper™ Console Power Supply provides the power to both the keratome motor and the suction supply for holding the ring in place on the cornea. This is the same console which drives the company's ADK disposable keratome. The console has three vacuum suction settings, HIGH, LOW, OFF. The console will only permit the keratome to operate (transverse the cutting plane) while in the HIGH setting. While in the HIGH mode, the console, with its internal barometer, reacts to vacuum suctions values which are below the optimum by signaling the operator with audible and visual warnings. The UltraShaper™ Console Power Supply conforms to IEC-601-1 electrical safety standard.

A sterile suction tubing set, which is generic to several keratome systems, is used to connect the suction ring / handle of the UltraShaper™ to the suction port on the console. Suction tubing sets are supplied sterile and are intended for single use. Likewise, keratome blades are supplied sterile and are intended for single use.

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

Not Found

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

The techniques and instrumentation for lamellar keratoplasty were introduced 45 years ago. Keratomes have been in use for nearly 30 years, beginning with the introduction into commercial distribution of the Steinway/Barraquer In Situ Microkeratome Set in 1965. A review of the published literature on keratomes indicates that these devices are associated with acceptable clinical results in terms of postoperative refraction and visual acuity, and minimal postoperative complications.

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

Not Found

Predicate Device(s): If the device was cleared using the 510(k) pathway, identify the Predicate Device(s) K/DEN number used to claim substantial equivalence and list them here in a comma separated list exactly as they appear in the text. List the primary predicate first in the list.

K941550, K860001, K903912

Reference Device(s): Identify the Reference Device(s) K/DEN number and list them here in a comma separated list exactly as they appear in the text.

Not Found

Predetermined Change Control Plan (PCCP) - All Relevant Information for the subject device only (e.g. presence / absence, what scope was granted / cleared under the PCCP, any restrictions, etc).

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

K990227

JAN 31 2000

Summary of Safety and Effectiveness for 510(k)

  • Submitter of Information: 1.
    LaserSight Technologies, Inc. 3300 University Boulevard, Suite 140 Winter Park, Florida 32792 Michael P. Dayton, MS, RAC Contact Person: Senior Vice President Chief Technical Officer Tel (407) 678-9900 Fax (407) 671-0180

  • Device Name: 2.

Trade / Proprietary Name:UltraShaper™ System
Classification / Usual Name:Keratome
Device ClassificationClass I, 86 HNO (21 CFR, Section 886.4370)
Performance StandardsN/A
    1. Predicate Devices:
      The UltraShaper™ Keratome for which marketing clearance is requested is substantially equivalent to the following predicate devices:
  • Automatic Corneal Shaper, manufactured and distributed bv Chiron Vision . Corporation, 9342 Jeronimo Road, Irvine, CA [cleared under K941550].

  • Steinway-Barraquer In-Situ Microkeratome Set, manufactured and distributed by . Steinway Instrument Company, Inc., San Diego, CA. This device is identical to the Allergan Medical Optics Barraquer-Krumeich Refractive Set [cleared under K860001].

  • Micro Refractive System Model 1000, manufactured and distributed by Micro Precision . Instrument Company, 2323 N. Central Avenue, Suite 2105, Phoenix, AZ [cleared under K903912].

    1. Description of Device:

Device Description: The UltraShaper™ System consists of the following components: (a) cutting head, (b) suction rings / handles, (c) motor handpiece, (d) handpiece-to-console cable, (e) suction tubing set, (g) blade assembly, and (h) console power / suction supply with foot actuated switches.

The cutting head and suction rings / handles are constructed entirely from stainless steel. The UltraShaper™ System is designed to perform anterior lamellar circular corneal

1

resections of a predetermined diameter and thickness based upon the principle of a carpenter's plane. A cutting blade emerges from the center of the keratome plane. The stainless steel blade oscillates by a small DC motor (in the motor handpiece) controlled by foot switch. The cutting head slides on dovetail guides on a circular suction ring. The cutting head contains a gear drive train that engages a gear rack on one side of the suction ring to drive the keratome head across the suction ring and cornea. The suction ring provides an annular vacuum chamber for temporary attachment to the ocular globe. The cutting head has a fixed foot plate and is available in three standard head sizes, 130, 160 and 180 microns, depending on the thickness of the corneal section desired. There are also three different suction ring / handle sizes available to accommodate the variations in corneal curvature from patient to patient. A (motor handpiece-to-console) cable is also supplied with each UltraShaper™ keratome.

The UltraShaper™ Console Power Supply provides the power to both the keratome motor and the suction supply for holding the ring in place on the cornea. This is the same console which drives the company's ADK disposable keratome. The console has three vacuum suction settings, HIGH, LOW, OFF. The console will only permit the keratome to operate (transverse the cutting plane) while in the HIGH setting. While in the HIGH mode, the console, with its internal barometer, reacts to vacuum suctions values which are below the optimum by signaling the operator with audible and visual warnings. The UltraShaper™ Console Power Supply conforms to IEC-601-1 electrical safety standard.

A sterile suction tubing set, which is generic to several keratome systems, is used to connect the suction ring / handle of the UltraShaper™ to the suction port on the console. Suction tubing sets are supplied sterile and are intended for single use. Likewise, keratome blades are supplied sterile and are intended for single use.

ડ. Intended Use for Subject Device:

The Automated Disposable Keratome is an AC-powered device that is intended to shave a partial lamellar section of the cornea.

Comparison of Technological Characteristics with Predicate Devices: 6.

The UltraShaper™ Keratome operates on the same principles and has the same technological characteristics as other legally marketed keratomes. However, the UltraShaper™ is most similar to the Chiron Automated Corneal Shaper™ (ACS). The UltraShaper™ shares the same primary drive mechanism as the Chiron ACS. Historically, the DC-powered gear drive mechanism, which automatically draws the blade across dovetail guides, has proven itself safe and effective in producing precise sections of corneal tissue.

The motor handpiece for the UltraShaper™ device uses the same DC motor in the Chiron ACS™. The connect point between the UltraShaper™ motor handpiece is similar to the ACS™ system. The UltraShaper™ motor handpiece, like the ACS™ motor handpiece, is disinfected by cleaning with alcohol. Refer to TABLE 1 for a comparison of features for substantially equivalent devices.

Image /page/1/Picture/8 description: The image shows the binary number 000010. The number is written in a bold, sans-serif font. The digits are evenly spaced and aligned horizontally. The image is simple and clear, with no other elements present.

2

The differences between the UltraShaper™ and currently marketed devices, particularly the Chiron ACS device, are insignificant and do not affect the safety and effectiveness of the device since they do not alter the energy source, materials or principle of operation.

Discussion of Clinical Tests: 7.

The techniques and instrumentation for lamellar keratoplasty were introduced 45 years ago. Keratomes have been in use for nearly 30 years, beginning with the introduction into commercial distribution of the Steinway/Barraquer In Situ Microkeratome Set in 1965. A review of the published literature on keratomes indicates that these devices are associated with acceptable clinical results in terms of postoperative refraction and visual acuity, and minimal postoperative complications.

TABLE 1
INFORMATION ON SUBSTANTIALLY EQUIVALENT PRODUCTS
COMPARISON OF FEATURES
Company
ParameterLaserSight
UltraShaper™
SystemChiron Vision
Automated Corneal
Shaper™Allergan Medical
Barraquer-Krumeich
Refractive Set™Micro Precision
Micro Refractive™
System Model 1000
Major
ComponentsConsoleConsoleConsoleConsole
1 Suction Rings1 Adjustable
Height Suction
Ring25 Suction Rings25 Suction Rings
Fixed Depth
Keratome Head
(130, 160, 180 μ)Adjustable
Keratome HeadKeratome Head
with Thickness
PlatesAdjustable
Keratome Head
Electric Motor
12 v DCElectric Motor
12 v DCElectric Motor
12 v DCTurbine Motor
Blade Oscillation
7,500 RPMBlade Oscillation
7,500 RPMBlade Oscillation
Not knownBlade Oscillation
0-20,000 RPM
Console Details
Electrical110/120 AC110/120 AC110/120 ACNone
Vacuum PumpDC PoweredDC PoweredAC PoweredNitrogen Gas
Venturi Type
Pump
Blade Height
VerificationMeasured in
Clinic with
Micron-ScopeMeasured in
Clinic with
Micron-ScopeNoneMeasured in
Clinic with
Digital Indicator
Foot ControlsDC PoweredDC PoweredDC PoweredPneumatic

000011

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Image /page/3/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 eagle with three stripes representing the department's mission. The words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" are arranged in a circular pattern around the eagle.

Public Health Service

JAN 31 2000

Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850

Mr. Sam A. Mirza Manager, Regulatory Affairs LaserSight Technologies, Inc. 3300 University Boulevard, Suite 140 Winter Park, Florida 32792

Re: K990227 Trade Name: UltraShaper™ System Regulatory Class: I Product Code: 86 HNO Regulation: 886.4370 (Keratome) Dated: January 12, 2000 Received: January 13, 2000

Dear Mr. Mirza:

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 .

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Page 2 - Mr. Sam A. Mirza

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. Ralph Rosenthal

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

Enclosure

5

510 (k) NUMBER (IF KNOWN) : K990227

UltraShaper™ System DEVICE NAME :

INDICATIONS FOR USE :

The UltraShaper™ System is an AC-powered device that is intended to shave a partial lamella section of the cornea.

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

Concurrence of CDRH, Office of Device Evaluation (ODE)
----------------------------------------------------------
Bruce Drum
(Division Sign-Off)
Division of Ophthalmic Devices
510(k) NumberK990227
Prescription UseXOROver-The-Counter-Use
(Per 21 CFR 801.109)(Optional Format 1-2-96)

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