The EpiVision™ SL System is indicated for the separation of the epithelium from the cornea in preparation for subsequent surgical procedures on the denuded cornea and for use in the making of a corneal flap in patients undergoing LASIK treatment.
Device Story
EpiVision™ SL System is an AC-powered, motor-driven microkeratome used by ophthalmologists in clinical settings to create corneal flaps or separate the corneal epithelium. The system consists of a control console, handpiece, footswitch, and sterile single-use sets (head, suction ring, separator). The operator uses the footswitch to control the device; fixed parameters govern hinge size, advancing speed, and oscillation frequency. The console provides visual (LED) and audible feedback regarding vacuum status (0.75 bar target, <0.6 bar warning) and cutter position. The device creates a lamellar corneal flap or epithelial separation, facilitating subsequent vision-correcting laser procedures. Safety features include automatic cutting stops if vacuum levels drop and audible/visual indicators for operational status. The device benefits patients by enabling precise, automated corneal tissue preparation for refractive surgery.
Clinical Evidence
No clinical performance data submitted. Bench testing only was performed to evaluate functional ability to create precise epithelial incisions with constant cut thickness.
Technological Characteristics
AC-powered, motor-driven microkeratome. Components: console, handpiece, footswitch, single-use head/suction-ring/separator. Fixed parameters for hinge size, speed, and oscillation. Vacuum-based suction system. Electrical safety compliance with UL 2601-1, IEC 60601-1, and IEC 601-1-2. Connectivity: wired console-to-handpiece and footswitch. Sterilization: single-use components.
Indications for Use
Indicated for patients undergoing LASIK treatment or requiring epithelial separation from the cornea in preparation for subsequent surgical procedures on the denuded cornea.
Regulatory Classification
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.
Predicate Devices
EpiTome System and Lasitome System Keratome (K041206)
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# 02
# Gebauer EpiVision™ SL SYSTEM
JAN 1 6 2009
# 510(k) PREMARKET NOTIFICATION SUMMARY
· Device Trade or Proprietary Name: Ep1Vision™ SL System
•Common/Classification Name: Keratome, AC Powered ·Class: Class I
·Classification Panel: કર્ણ •Product Code HNO
# ·Labeling:
Federal (United States) Law restricts this device to sale by or on the order of a physician
# · Predicate Devices for Substantial Equivalence Comparison:
The EpIVision™ SL System is claimed to be substantially equivalent to the
following currently marketed Predicate Devices
| Manufacturer | Device Name | 510-K<br>number | Decision<br>Date |
|-----------------------------------|------------------------------------------------------------------------------------------|-------------------------|------------------------------|
| Gebauer<br>Medizintechnik<br>GmbH | EpiTome<br>System and Lasitome<br>System Keratome<br>AC powered<br>*Now EpiVision System | K041206 | 09/15/2004 |
| BioVision | Visitome 20-10<br>Microkeratome | K014000<br>&<br>K042083 | 3/11/2002<br>&<br>11/16/2004 |
* The name was changed from EpiTome to EpiVision System and LasiTome System on 06/10/2005
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#### · Device Description:
The EpiVision™ SL System is a fully automated, AC powered ophthalmic keratome system. The EpiVision™ SL System is used to produce a lamellar corneal flap in an Epithelial Separation or LASIK procedure.
With these methods, the refraction of the comea is changed using a laser treatment, a comeal flap is created. However, this flap is not completely separated (except when an epithelial free flap is desired), but remains connected by a small segment of the flap to the eyeball. This segment is called the hinge.
The hinge size, the advancing speed during cutting, and the oscillation frequency of the cutter are fixed parameters. The user cannot change these parameters.
The EpiVision™ SL System's function is to remove an eye's upper corneal layer (epithelium) using an Epithelial Separation method or to create a cut in the epithelium of the cornea for using a LASIK operation method, after which the contour of the cornea is treated with a vision-correcting laser is not manufactured by Gebauer Medizintechik GmbH.
The oscillating Separator/Blade, with fixed parameters creates a separation between the epithelium and Bowman's layers, or a cut in the epithelium.
The EpiVision™ SL System is a motor driven Microkeratome which is composed of a Console with power-cable, a Handpiece with a removable Handpiece-cable, a Footswitch, with different colored Foot-pedals, a Single-Use-Set/Single-Use LASIK Set for EpiVision™ SL and a Disposable Tubing System for Epi Vision™ SL System. The Single-Use Set/Single-Use LASIK Set for EpiVision™ SL consists of a Head, a Suction-Ring and a Separator.
The components should be assembled per the assembly description in Section 7 of the Users Manual. The EpiVision™ SL System is operated exclusively
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by the Footswitch. On top of the Console are LEDs which provide optical signals for "on" and "off" of the console, activated vacuum, vacuum level and run cycle. In addition to LEDs there are acoustical signals which sound when 0.75 bar vacuum is achieved, when the vacuum is deactivated, when the vacuum level drops below 0.6 bar during a run cycle, and when the Handpiece has reached the forward stop and the reverse stop. The EpiVision™ SL Control Console is comprised of a Vacuum.
The EpiVision™ SL System includes a choice of sterile Single-Use Sets/Single-Use LASIK Sets to allow the System User to select the appropriate ring size and head on an individual patient basis. The EpiVision™ SL system is designed for use with disposable tubing that is readily available/commercially approved within the United States for other approved microkeratome systems.
# •Indications for Use Statement:
The EpiVision™ SL System is indicated for the following uses:
The EpiVision™ SL System is indicated for the separation of the epithelium from the cornea in preparation for subsequent surgical procedures on the denuded cornea and for use in the making of a corneal flap in patients undergoing LASIK treatment.
#### ·Clinical Performance Data
No clinical performance data has been submitted.
# · Non-Clinical Performance Data
In-Vitro non-clinical performance data is provided in the submission.
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## ·Rationale for Substantial Equivalence
- The INTENDED USES and the OPERATING and CUTTING 1 PRINCIPLES (1e. Effectiveness) of the Gebauer Ep1Vision™ SL System are the SAME as the predicate devices
- The OPERATIONAL FEATURES of the Gebauer Ep1V1s10n™ SL 2 System are the same/comparable to those offered to the predicate devices
- The SAFETY FEATURES of the Ep1Vision™ SL System are the ಗ same, very similar or better to those offered on one or more of the predicate devices
Therefore, in summary, the Ep1Vision™ SL System is substantially equivalent to the two identified predicate devices that have previously been allowed for commercial distribution in the United States, in terms of ALL key aspects of the device _ device effectiveness/operation, device intended usage, device features/surgical parameters and safety features
#### ·Safety and Effectiveness
1 - 2
The EpIVision™ SL System is designed to comply with the electrical standards of the Underwriters Laboratories UL 2601-1 and has passed an unspection to these standards by an independent testing house Furthermore, the EpiVision, a sister device to the EpiVision™ SL System (devices are identical in terms of electrical and EMI issues) underwent independent scrutiny and testing by UL-Germany to assess the overall electrical safety and EMI safety UL-Germany after extensive evaluation determined that the Ep1Vision System met all electrical and electromagnetic compatibility (EMI) safety requirements set forth in the International Electro-technical Commissions (IEC) 60601-1 1988 +A1 +A2 (EN 60601-1-1990 + A1 +A2) International Electro-technical Commissions IEC 601-1-1 and IEC 601-1-2 which reasonably assures the device is safe when used as directed for its prescribed intended use
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Additionally several operational safety features are designed into the Ep1Vision™ SL (vacuum level gauge, a low suction LED and "audible tone" indicators, automatic cutting stop if vacuum level drops and forward and reverse foot pedal controls) The effectiveness of the device was confirmed during bench testing which was designed to evaluate the functional ability of the Gebauer EpiVision™ SL System to create highly precise epithelial incisions with constant cut thickness
The Gebauer Epi Vision™ SL System does not raise any new issues of safety, effectiveness or performance of the device when compared to the existing predicate devices
#### ·Conclusions
The data submitted in this 510(k) Premarket Notification, for the Gebauer EpiVision™ SL System demonstrates that this product is substantially equivalent with respect to the indications for use, operating principles, operational features, and safety features to another legally marketed predicate device. With the information provided, the safety and effectiveness of the product can be reasonably assured, and we believe that this device clearly meets the requirement for a "Substantial Equivalence" decision in accordance with the 510(k) guidelines.
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Image /page/5/Picture/14 description: The image shows the logo for the U.S. Department of Health and Human Services. The logo consists of a stylized eagle with its wings spread, and the words "DEPARTMENT OF HEALTH & HUMAN SERVICES USA" are arranged in a circle around the eagle. The eagle is black, and the text is also black.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
Gebauer Medizintechnik GMBH c/o Kımberley Doney 54 Forest Street Lexington, Massachusetts 02421
JAN 1 6 2009
Re K072102
Trade/Device Name Ep1Vision™ SL System Regulation Number 21 CFR 886 4370 Regulation Name AC Powered Keratome Regulatory Class I Product Code HNO Dated January 12, 2009 Received January 13, 2009
Dear Ms Doney
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 The general controls provisions of the Act include requirements for annual registration, Insting 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 (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
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
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This letter will allow you to begin marketing your device as described in your Section 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), please contact the Center for Devices and Radiological Health's (CDRH's) Office of Compliance at (240) 276-0115 Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807 97) For questions regarding postmarket surveillance, please contact CDRH's Office of Surveillance and Biometric's (OSB's) Division of Postmarket Surveillance at 240-276-3474 For questions regarding the reporting of device adverse events (Medical Device Reporting (MDR)), please contact the Division of Surveillance Systems at 240-276-3464 You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (240) 276-3150 or at its Internet address http //www fda gov/cdrh/industry/support/index html
Sincerely yours,
Malvina B. Eystad, ud
Malvina B. Eydelman, MI Director Division of Ophthalmic and Ear, Nose and Throat Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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# Indications for Use
510(k) Number (if known): Original Premarket Notification
Device Name: EpiVision™ SL System
Indications for Use:
The EpiVision™ SL System is indicated for the separation of the epithelium from the comea in preparation for subsequent surgical procedures on the denuded comea and for use in the making of a corneal flap in patients undergoing LASIK treatment.
Prescription Use X (Part 21 CFR 801 Subpart D)
Page _1_ of__1_
6
Daryl L. Kaufman
(Division Sign-Off) Division of Or: Thairms . . . . . . Nose and Throal Davices
510(k) Number_
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1. Search: exact and fuzzy
Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
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Exact vs. fuzzy search: what's the difference?
Exact matches on the literal phrase (prefix search works, suffix does not). Fuzzy matches on the meaning and intent of the phrase rather than the exact words. Hover over the badge on any row to see why it matched.
You search "coronary artery calcification" and want only software devices with AI. What two filters do you apply?
Narrow by SaMD (software-only devices), then narrow by AI/ML (devices with AI).
2. The results table
Scroll right in the results table. The intended use is extracted for you — no need to open the PDF. The device story gives a high-level snapshot of what the device does and how it's used. The AI Performance sub-table shows each output name, acceptance criteria, observed values, and development/test dataset descriptions — the same format Innolitics uses for regulatory strategy outputs, and the fastest high-level fingerprint of an AI device. It is AI-generated but has been very reliable in practice.
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Scroll right in the search results table. The intended use column is extracted for you; no need to dig into the 510(k) summary PDF.
What does the AI Performance sub-table show, and why is it useful?
Output name, acceptance criteria, observed values, development dataset description, and test dataset description. It's the same format we use for regulatory strategy output and Fast 510(k) input, and the fastest high-level fingerprint of an AI device. AI-generated but reliable in practice.
3. Judging fuzzy relevance
Fuzzy results trail off in relevance as you scroll. Use three signals to decide how far down to go: the fuzzy badge explanations, the intended use column, and whether your target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, you're past the relevant zone. A top hit with a low score (~0.4) and a stretched explanation is a hint the closest predicates are far away — the project may be headed for De Novo. Note the fuzzy search is a pattern match: it doesn't handle negation ("not") well, and hardware devices can appear — filter by SaMD/AI ML to cut them.
How do you judge how far down fuzzy search results to go?
Use the relevancy signals: the fuzzy badge explanations, the intended use column, and whether the target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, results are trailing off in relevancy.
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Reading rule for every project: how many summaries do you read in full?
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Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
What does the side-by-side PDF viewer mode do?
Select multiple devices, open the PDF viewer tab, and ask one question (e.g., "Describe the training data"). It queries all selected devices simultaneously with citations, so you can compare and contrast quickly.
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With rows selected, go to the Collections tab and create a labeled collection (e.g., "Cobb Angle Project"). Reload that selection any time — before a client call, pull up the collection and ask questions across all of its devices at once.
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Browse product codes and regulation numbers, read the identification text and special controls, browse sibling product codes, open device PDFs on the right, and search by product code or regulation number at the top of the tree.
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Click Show Chart and segment by regulation number (or product code) to see which regulations dominate your result set. Clicking a regulation takes you into the regulations tree. Great for spotting that most matches are, say, hardware laparoscopic devices — a cue to go back and filter.
How do you see which regulations dominate a search result set?
Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
9. The predicate graph
Open the Predicates tab for a family-tree view of predicate relationships. Click a node to trace its parents and children; selections from search carry over pre-selected. Commonly predicated devices are worth reading — a lot of people predicated them for a reason. The visual lineage is also handy on client calls, e.g. to show how a predicate family evolved and justify why your predicate still holds.
In the predicate graph, why are commonly predicated devices worth reading?
A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
10. Embeddings: the galaxy map
The Embeddings tab plots every matching document in a 2-D "galaxy map" where semantically similar devices cluster together. Hover or click clusters to explore, and let AI label the clusters for you. Embeddings beat product codes for grouping: two devices can carry different product codes (LLZ vs. QIH) yet do the same thing — the embedding captures the meaning of the intended use and device story. This is also exactly how retrieval-augmented generation (RAG) works under the hood, and it makes a great visual on client calls.
Try it yourself
Head to the search page and work through a few of these AI/ML fuzzy searches to build intuition: perivascular fat on CT · aortic valve calcification opportunistic screening on noncontrast CT · breast cancer prediction on digital pathology slides · autism detection · gestational age prediction · a hearing aid that can also detect a pulse · foundation model based analysis of ECG · large language models · penetration test. Watch how the relevance scores, intended use, and AI Performance tables tell you when results stop being meaningful.