The Leos system is indicated for intraoperative photocoagulation of the ciliary processes in the treatment of glaucoma, proliferative retinopathies, retinal detachment, and for evaluation of the internal ocular structures in patients with dense opacifications of the anterior segment which do not allow a posterior view. Glaucoma - This instrument is indicated for the treatment of glaucoma in patients who have failed with conventional topical and systemic medications, or previous laser photocoagulation, or trabeculectomy and other filtering procedures, or cyclocryotherapy or other cyclodestructive procedures. Vitreoretinal Surgery - The endoscopically controlled endophotocoagulation that is possible with the ophthalmic laser endoscope is also useful for endophotocoagulation: - During vitreous surgery to produce chorioretinal scar around retinal breaks or retinotomy sites. - To perform intraoperative panretinal photocoagulation (PRP) in proliferative retinopathies. - To perform intraoperative retinal photocoagulation on a scleral buckle. - To perform intraoperative photocoagulation around focal neovascularization.
Device Story
Leos Laser and Endoscopy System provides intraoperative photocoagulation and visualization for ophthalmic surgery. System inputs: 810nm diode laser energy; endoscopic video feed from CMOS camera at probe tip. Operation: surgeon inserts stainless-steel endoscopic probe (VueProbe) into eye; LED light source in probe illuminates tissue; laser fiber delivers 810nm energy for photocoagulation. Console features touchscreen for parameter selection and passive monitor for video/data. Wireless footswitch activates laser and rotation. Used in OR by ophthalmologists. Output: real-time endoscopic video and therapeutic laser delivery. Clinical benefit: enables direct visualization and titratable photocoagulation in patients with dense opacifications, facilitating treatment of glaucoma and vitreoretinal conditions.
Clinical Evidence
No clinical data. Substantial equivalence established via bench testing, including EMC/electrical safety (IEC 60601-1, IEC 60601-1-2), laser/optical safety (IEC 60825-1, IEC 60601-2-22, ANSI Z80.36), software validation (IEC 62304), biocompatibility (ISO 10993), and sterilization/shelf-life validation (ISO 11135, ISO 11607-1).
Technological Characteristics
810nm GaAs semiconductor diode laser (Class IV); 640nm AlGaInP aiming beam (Class III). CMOS digital camera at probe tip; LED illumination. Stainless-steel endoscopic probe (19G). Console with touchscreen and passive monitor. Wireless footswitch. Power: 120/240V AC. Software: Major level of concern. Sterilization: Ethylene oxide (ISO 11135). Connectivity: USB 2.0, HDMI.
Indications for Use
Indicated for intraoperative photocoagulation of ciliary processes for glaucoma, proliferative retinopathies, and retinal detachment; and evaluation of internal ocular structures in patients with dense anterior segment opacifications. Glaucoma indication for patients failing topical/systemic meds, prior laser, trabeculectomy, or cyclodestructive procedures. Vitreoretinal surgery use includes chorioretinal scarring, PRP, scleral buckle photocoagulation, and focal neovascularization treatment.
Regulatory Classification
Identification
An ophthalmic laser is an AC-powered device intended to coagulate or cut tissue of the eye, orbit, or surrounding skin by a laser beam.
E2 Microprobe Laser and Endoscopy System (K042918)
Submission Summary (Full Text)
{0}
FDA U.S. FOOD & DRUG ADMINISTRATION
April 3, 2025
Beaver-Visitec International, Inc.
Christopher Brady
Manager, Regulatory Affairs
500 Totten Pond Rd, 10 CityPoint
Waltham, Massachusetts 02451
Re: K240615
Trade/Device Name: Leos Laser and Endoscopy System
Regulation Number: 21 CFR 886.4390
Regulation Name: Ophthalmic Laser
Regulatory Class: Class II
Product Code: HQF
Dated: February 28, 2024
Received: February 28, 2024
Dear Christopher Brady:
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 (the 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 available 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.
U.S. Food & Drug Administration
10903 New Hampshire Avenue
Silver Spring, MD 20993
www.fda.gov
{1}
K240615 – Christopher Brady
Page 2
Additional information about changes that may require a new premarket notification are provided in the FDA guidance documents entitled "Deciding When to Submit a 510(k) for a Change to an Existing Device" (https://www.fda.gov/media/99812/download) and "Deciding When to Submit a 510(k) for a Software Change to an Existing Device" (https://www.fda.gov/media/99785/download).
Your device is also subject to, among other requirements, the Quality System (QS) regulation (21 CFR Part 820), which includes, but is not limited to, 21 CFR 820.30, Design controls; 21 CFR 820.90, Nonconforming product; and 21 CFR 820.100, Corrective and preventive action. Please note that regardless of whether a change requires premarket review, the QS regulation requires device manufacturers to review and approve changes to device design and production (21 CFR 820.30 and 21 CFR 820.70) and document changes and approvals in the device master record (21 CFR 820.181).
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); medical device reporting (reporting of medical device-related adverse events) (21 CFR Part 803) for devices or postmarketing safety reporting (21 CFR Part 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reporting-combination-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 Part 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR Parts 1000-1050.
All medical devices, including Class I and unclassified devices and combination product device constituent parts are required to be in compliance with the final Unique Device Identification System rule ("UDI Rule"). The UDI Rule requires, among other things, that a device bear a unique device identifier (UDI) on its label and package (21 CFR 801.20(a)) unless an exception or alternative applies (21 CFR 801.20(b)) and that the dates on the device label be formatted in accordance with 21 CFR 801.18. The UDI Rule (21 CFR 830.300(a) and 830.320(b)) also requires that certain information be submitted to the Global Unique Device Identification Database (GUDID) (21 CFR Part 830 Subpart E). For additional information on these requirements, please see the UDI System webpage at https://www.fda.gov/medical-devices/device-advice-comprehensive-regulatory-assistance/unique-device-identification-system-udi-system.
Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 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-devices/medical-device-safety/medical-device-reporting-mdr-how-report-medical-device-problems.
{2}
K240615 – Christopher Brady
Page 3
For comprehensive regulatory information about medical devices and radiation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medical-devices/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-devices/device-advice-comprehensive-regulatory-assistance/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,
CLAUDINE H. KRAWCZYK -S
Claudine Krawczyk
Assistant Director
DHT1A: Division of Ophthalmic Devices
OHT1: Office of Ophthalmic, Anesthesia, Respiratory, ENT, and Dental Devices
Office of Product Evaluation and Quality
Center for Devices and Radiological Health
Enclosure
{3}
FORM FDA 3881 (6/20)
Page 1 of 1
PSC Publishing Services (301) 443-6740
EF
| DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration Indications for Use | Form Approved: OMB No. 0910-0120 Expiration Date: 06/30/2023 See PRA Statement below. |
| --- | --- |
| 510(k) Number (if known) K240615 | |
| Device Name Leos Laser and Endoscopy System | |
| Indications for Use (Describe) The Leos system is indicated for intraoperative photocoagulation of the ciliary processes in the treatment of glaucoma, proliferative retinopathies, retinal detachment, and for evaluation of the internal ocular structures in patients with dense opacifications of the anterior segment which do not allow a posterior view. Glaucoma - This instrument is indicated for the treatment of glaucoma in patients who have failed with conventional topical and systemic medications, or previous laser photocoagulation, or trabeculectomy and other filtering procedures, or cyclocryotherapy or other cyclodestructive procedures. Vitreoretinal Surgery - The endoscopically controlled endophotocoagulation that is possible with the ophthalmic laser endoscope is also useful for endophotocoagulation: - During vitreous surgery to produce chorioretinal scar around retinal breaks or retinotomy sites. - To perform intraoperative panretinal photocoagulation (PRP) in proliferative retinopathies. - To perform intraoperative retinal photocoagulation on a scleral buckle. - To perform intraoperative photocoagulation around focal neovascularization. | |
| Type of Use (Select one or both, as applicable) ☑ Prescription Use (Part 21 CFR 801 Subpart D) ☐ Over-The-Counter Use (21 CFR 801 Subpart C) | |
| CONTINUE ON A SEPARATE PAGE IF NEEDED. | |
| This section applies only to requirements of the Paperwork Reduction Act of 1995. *DO NOT SEND YOUR COMPLETED FORM TO THE PRA STAFF EMAIL ADDRESS BELOW.* | |
| The burden time for this collection of information is estimated to average 79 hours per response, including the time to review instructions, search existing data sources, gather and maintain the data needed and complete and review the collection of information. Send comments regarding this burden estimate or any other aspect of this information collection, including suggestions for reducing this burden, to: Department of Health and Human Services Food and Drug Administration Office of Chief Information Officer Paperwork Reduction Act (PRA) Staff PRAStaff@fda.hhs.gov | |
| "An agency may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a currently valid OMB number." | |
{4}
510(k) Summary
Leos Laser and Endoscopy System, K240615, Page 1 of 9
BVI
# I. Submitter Information
| Date Prepared | April 2, 2025 |
| --- | --- |
| Applicant | Beaver-Visitec International, Inc. 500 Totten Pond Rd - 10 CityPoint Waltham, MA 02451 |
| Primary Correspondent | Christopher Brady Senior Manager, Regulatory Affairs cbrady@bvimedical.com 1-617-888-0007 |
| Alternate Correspondent | Mattia Ronchetti Senior Director, Global Clinical and Regulatory Affairs mronchetti@bvimedical.com (+39) 3667597049 |
# II. Subject Device
| Device Common Name | Ophthalmic Laser and Endoscopy System |
| --- | --- |
| Trade/Proprietary Name | Leos Laser and Endoscopy System |
| Device Class | Class 2 |
| Regulation Number | 886.4390 – Ophthalmic Laser |
| Product Code | HQF – Laser, Ophthalmic |
# III. Predicate Devices
| Primary Predicate | |
| --- | --- |
| Device Common Name | Ophthalmic Laser and Endoscopy System |
| Trade/Proprietary Name | Uram Ophthalmic Laser Endoscope |
| 510(k) Number | K910532 |
| Device Class | Class 2 |
| Regulation Number | 886.4390 – Ophthalmic laser |
| Product Code | HQF – Ophthalmic laser |
| Secondary Predicate | |
| Device Common Name | Ophthalmic Laser and Endoscopy System |
| Trade/Proprietary Name | E2 Microprobe Laser and Endoscopy System |
| 510(k) Number | K042918 |
| Device Class | Class 2 |
| Regulation Number | 878.4810 – Laser surgical instrument for use in general and plastic surgery and in dermatology |
| Product Code | GEX – Powered Laser Surgical Instrument |
# IV. Device Description Summary
The Leos Laser and Endoscopic System is a next generation ophthalmic laser and endoscopy system used for the treatment of glaucoma, vitreoretinal diseases, and intraocular visualization. The system contains an $810\mathrm{nm}$ powered diode laser delivered by the stainless-steel endoscopic laser probe (trade name: VueProbe), which is placed into eye tissue to illuminate and visualize the target tissue and deliver laser energy under direct visualization. The console is a fully integrated
{5}
510(k) Summary
Leos Laser and Endoscopy System, K240615, Page 2 of 9
BVI
portable device, containing a laser module assembly, viewing and control monitors, and a wireless footswitch for activating the laser. The larger passive monitor is for viewing the endoscopic video image and key treatment information, while the smaller touchscreen is used for parameters selection, rotation and viewing. The camera chip uses CMOS technology and is located at the tip of the probe. The LED light source is located within the plastic handpiece of the probe and illumination fibers carry the light to the tip. Additionally, the probe contains a laser fiber within its full length.
# V. Indications for Use
The Leos system is indicated for intraoperative photocoagulation of the ciliary processes in the treatment of glaucoma, proliferative retinopathies, retinal detachment, and for evaluation of the internal ocular structures in patients with dense opacifications of the anterior segment which do not allow a posterior view.
Glaucoma - This instrument is indicated for the treatment of glaucoma in patients who have failed with conventional topical and systemic medications, or previous laser photocoagulation, or trabeculectomy and other filtering procedures, or cyclocryotherapy or other cyclodestructive procedures.
Vitreoretinal Surgery - The endoscopically controlled endophotocoagulation that is possible with the ophthalmic laser endoscope is also useful for endophotocoagulation:
- During vitreous surgery to produce chorioretinal scar around retinal breaks or retinotomy sites.
- To perform intraoperative panretinal photocoagulation (PRP) in proliferative retinopathies.
- To perform intraoperative retinal photocoagulation on a scleral buckle.
- To perform intraoperative photocoagulation around focal neovascularization
# VI. Substantial Equivalence Comparison
The Leos System is designed to provide the same clinical therapy using the same treatment laser and aiming laser technologies and wavelengths as the predicate devices. The primary differences for the Leos System are updated endoscopy technology and new form factors for the console, footswitch and probe. A comparison table is provided below.
{6}
510(k) Summary
Leos Laser and Endoscopy System, K240615, Page 3 of 9
BVI
| Characteristic | Uram Ophthalmic laser Endoscope and E2 Microprobe Laser and Endoscopy System (Predicate Devices) K910532, K042918 | Leos Laser and Endoscopy System (Subject Device) | Same or Equivalent |
| --- | --- | --- | --- |
| Generic Device Description | 810 nm Laser Endoscopy System | 810 nm Laser Endoscopy System | Same |
| Indications | The ophthalmic laser endoscope is indicated for intraoperative photocoagulation of the ciliary processes in the treatment of glaucoma, proliferative retinopathies, retinal detachment, and for evaluation of the internal ocular structures in patients with dense opacifications of the anterior segment which do allow a posterior view.
Glaucoma - This instrument is indicated for the treatment of glaucoma in patients who have failed with conventional topical and systemic medications, or previous laser photocoagulation, or trabeculectomy and other filtering procedures, or cyclocryotherapy or other cyclodestructive procedures.
The endophotocoagulation of ciliary processes under direct endoscopic view is highly controllable, i.e. titratable, and has been demonstrated to be effective in the treatment of glaucoma.
Vitreoretinal Surgery - The endoscopically controlled endophotocoagulation that is possible with the ophthalmic laser endoscope is also useful for endophotocoagulation: | The Leos System is indicated for intraoperative photocoagulation of the ciliary processes in the treatment of glaucoma, proliferative retinopathies, retinal detachment, and for evaluation of the internal ocular structures in patients with dense opacifications of the anterior segment which do not allow a posterior view.
Glaucoma - This instrument is indicated for the treatment of glaucoma in patients who have failed with conventional topical and systemic medications, or previous laser photocoagulation, or trabeculectomy and other filtering procedures, or cyclocryotherapy or other cyclodestructive procedures.
Vitreoretinal Surgery - The endoscopically controlled endophotocoagulation that is possible with the ophthalmic laser endoscope is also useful for endophotocoagulation:
• During vitreous surgery to produce chorioretinal scar around retinal breaks or retinotomy sites.
• To perform intraoperative panretinal photocoagulation (PRP) in proliferative retinopathies. | Same, with minor changes (changes underlined)
1. Specify system
2. Correction at the end of first paragraph
3. Removal of third paragraph based on FDA feedback to remove performance claim |
{7}
510(k) Summary
Leos Laser and Endoscopy System, K240615, Page 4 of 9
BVI
| Characteristic | E2 System
(Predicate Device)
K042918, K910532 | Leos System
(Subject Device) | Same or Equivalent |
| --- | --- | --- | --- |
| | · During vitreous surgery to produce chorioretinal scar around retinal breaks or retinotomy sites.
· To perform intraoperative panretinal photocoagulation (PRP) in proliferative retinopathies.
· To perform intraoperative retinal photocoagulation on a scleral buckle.
· To perform intraoperative photocoagulation around focal neovascularization | · To perform intraoperative retinal photocoagulation on a scleral buckle.
· To perform intraoperative photocoagulation around focal neovascularization | |
| **Camera Characteristics** | | | |
| **Visualization Delivery System** | In probe - Fiberoptic Endoscope Video Camera Imaging | In probe - Direct Endoscope Video Camera Imaging | Same |
| **Camera Location** | Console | Endoscopic Probe | Equivalent
Different location and camera signal |
| **Camera Type** | Analog, CCD | Digital, CMOS | Equivalent
Different camera technologies |
{8}
510(k) Summary
Leos Laser and Endoscopy System, K240615, Page 5 of 9
BVI
| Characteristic | E2 System
(Predicate Device)
K042918, K910532 | Leos System
(Subject Device) | Same or Equivalent |
| --- | --- | --- | --- |
| Image Resolution | 10,000 pixels
(limited by fiber count) | 40,000 pixels | Equivalent
Leos System performance exceeds the E2 System |
| Laser Characteristics | | | |
| Treatment Laser Source and Type | Double hetero-structure, Gallium-Arsenide (GaAs), Semiconductor Diode (near-infrared spectra), Class IV | Double hetero-structure, Gallium-Arsenide (GaAs), Semiconductor Diode (near-infrared spectra), Class IV | Same |
| Treatment Laser Beam Nominal Wavelength (λ) | 810 nm (subvisible) | 810 nm (subvisible) | Same |
| Treatment Beam | Continuous Wave | Continuous Wave | Same |
| Treatment Modality | Continuous or Duration-Timed Modes | Continuous or Duration-Timed Modes | Same |
| Treatment Laser Power Range | 0 – 1.2 Watts | 0.05 – 1.2 Watts | Equivalent
Removed lower setting of 0 Watts |
| Laser Power Settings | 50 mW increments | 50 mW increments | Same |
| Laser Power Accuracy | +/- 20% | +/- 20% | Same |
| Laser Duration Cycle Settings | Duration increments in seconds as follows: 0.05, 0.07, 0.10, 0.20, 0.30, 0.50, 1.0, 2.0, Continuous | Duration increments in seconds as follows: 0.05, 0.07, 0.10, 0.20, 0.30, 0.50, 1.0, 2.0, Continuous | Same |
{9}
510(k) Summary
Leos Laser and Endoscopy System, K240615, Page 6 of 9
BVI
| Characteristic | E2 System
(Predicate Device)
K042918, K910532 | Leos System
(Subject Device) | Same or Equivalent |
| --- | --- | --- | --- |
| Repetition Mode | No | No | Same |
| Adjustable Laser Spot Size | Not adjustable | Not adjustable | Same |
| Laser Footswitch Control | Wired control to activate laser and (optional) illumination intensity | Wireless control to activate laser and rotation | Equivalent
The Leos footswitch does not include an option for illumination control and is wireless. Rotation control is an additional feature to be used based on user preference |
| Aiming Beam Laser Source and Type | Multi-quantum well structure, Aluminum Gallium Indium Phosphide (AlGaInP) Semiconductor Diode (visible spectra), Class III | Multi-quantum well structure, Aluminum Gallium Indium Phosphide (AlGaInP) Semiconductor Diode (visible spectra), Class III | Same |
| Aiming Beam Nominal Wavelength (λ) | 640 nm (red/orange) | 640 nm (red/orange) | Same |
| Aiming Beam Laser Power | up to 1500uW | up to 60 uW | Equivalent
Less power required for equivalent aiming beam visibility due to new camera sensitivity, aperture and location. |
| Aiming Beam Laser Intensity Setting | 10 – 250 in increments of 10 | up to 100%, 11 settings between 5 and 100% | Equivalent |
{10}
510(k) Summary
Leos Laser and Endoscopy System, K240615, Page 7 of 9
BVI
| Characteristic | E2 System
(Predicate Device)
K042918, K910532 | Leos System
(Subject Device) | Same or Equivalent |
| --- | --- | --- | --- |
| | | | Settings changed to percentage scale and number of settings reduced |
| **Illumination Characteristics** | | | |
| **Light Source** | Xenon lamp
[to probe from console] | LED illumination
[in probe] | Equivalent
New light source location and technology |
| **Light Power** | 175 W | 0.36 W LED driver | Equivalent
Change due to difference in light source |
| **Light Intensity** | Mechanical shutter-wheel control knob
(fully open to fully closed) | Touchscreen adjustable from 0 to 100%
(manually or via an automatic adjustment algorithm) | Equivalent
Change due to difference in light source and technology |
| **Other Characteristics** | | | |
| **Interface** | Table-top Console | Integrated standing control modules with console, touchscreen control screen, and passive view screen for surgeon | Equivalent
Updated user interface |
| **Communications – User Access** | N/A | USB 2.0 Type A for video image recording and an HDMI port for a second passive viewing screen | Equivalent
New features |
{11}
510(k) Summary
Leos Laser and Endoscopy System, K240615, Page 8 of 9
BVI
| Characteristic | E2 System
(Predicate Device)
K042918, K910532 | Leos System
(Subject Device) | Same or Equivalent |
| --- | --- | --- | --- |
| System Power | 115 or 240 V AC, 60-50Hz | 120 or 240 V AC, 60-50Hz | Same
Both are standard US and worldwide power supply voltages |
| Probe Use Description | Reusable, non-sterile | Single use, sterile | Equivalent
Probe will be provided sterile |
| Probe Options | 20G, straight | 19G, straight and curved | Equivalent
Slight increase in size and curved option added based on user preference. No clinical/therapy difference |
{12}
510(k) Summary
Leos Laser and Endoscopy System, K240615, Page 9 of 9
BVI
## VII. Non-Clinical Tests Summary
### Bench Testing
The following non-clinical testing was performed to support the substantial equivalence of the Leos System and VueProbe to the legally marketed predicate devices:
**Electromagnetic Compatibility and Electrical Safety**
- The Leos System was evaluated for EMC and electrical safety and found to be compliant with IEC 60601-1 for electrical safety and IEC 60601-1-2 for EMC.
**Laser Safety and Optical Safety**
- The Leos System was evaluated for laser and optical safety and found to be compliant with IEC 60825-1, IEC 60601-2-22, ANSI Z80.36.
**Design Verification and Validation Testing**
- Design verification testing confirms that the product meets its product requirements.
**Software Verification and Validation**
- The software level of concern is "Major". Software verification and validation testing was completed successfully following FDA's guidance "Guidance for the Content of premarket Submissions for Software Contained in Medical Devices" and IEC 62304.
**Biocompatibility Testing**
- Biocompatibility testing was performed per ISO 10993 and the sterile, single use probes were confirmed to be compliant to FDA recognized standards.
**Sterilization and Shelf Life**
- Sterilization, shelf life, and packaging/transport testing was performed to support the stated shelf life of the probes per FDA recognized standards ASTM D4169-22, ISO 11135, ISO 10993-7, AAMI TIR 28, and ISO 11607-1.
### Animal Testing
Not applicable. Animal studies were not required to establish substantial equivalence.
### Clinical Testing
Not applicable. Clinical studies were not required to establish substantial equivalence.
## VIII. Conclusion
The Leos Laser and Endoscopy System is substantially equivalent to the predicate devices, Uram Ophthalmic Laser Endoscope (K910532) and E2 Microprobe Laser and Endoscopy System (K042918). The Leos system has identical indications for use as the predicate devices and is similar in technological characteristics, performance, and principles of operation. The differences between the subject device and the predicate devices do not raise any new safety or effectiveness concerns.
Predicate graph will load when search results are available.
Embedding visualization will load when search results are available.
PDF viewer will load when search results are available.
Loading panels...
Select an item from Submissions
Click any panel, subpart, regulation, product code, or device to see details here.
Section Matches
Results will appear here.
Product Code Matches
Results will appear here.
Special Control Matches
Results will appear here.
Loading collections...
Loading
My Alerts
You will receive email notifications based on the filters and frequency you set for each alert.
Sort by:
Create Alert
Search Filters
Agent Token
Create a read-only bearer token for Claude, ChatGPT, or other agents that can call HTTP APIs.
Copy this now. It will not be shown again.
Connected apps
Apps you authorized through browser sign-in. Disconnecting revokes their access immediately.
Learn the FDA Browser
Two short videos show you everything — or skip straight to the written tutorial if you'd rather read. You can reopen this any time from the Tutorial button in the top bar.
Part 1 — Search, results, and everyday workflows 16 min
Part 2 — Embeddings: the galaxy map 3 min
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.
Use the checkboxes above the results to narrow: SaMD keeps only software-only devices, AI / ML keeps only devices with AI.
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.
Where do you find a device's intended use without opening the PDF?
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.
4. Device detail page: chat and citations
Click a device name to open its detail page: device facts on the left, a chat window on the right. Ask something like "Describe the training data". The answer carries little citation bubbles — click one to jump to the highlighted passage in the source PDF, so you can verify every AI answer against the document. There's also a Download PDF button for sharing.
How do you verify an AI chat answer on the device detail page?
Click the citation bubbles to jump to the relevant highlight in the source document.
Reading rule for every project: how many summaries do you read in full?
At least the three most relevant 510(k) or De Novo summaries, in full. After that, use targeted chat questions to confirm your memory quickly. The tool supports this professional habit — it doesn't replace it.
5. Side-by-side comparison
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.
6. Collections
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.
How do you save a set of selected devices for later use?
Select the rows, go to the Collections tab, and create a labeled collection (e.g., "Cobb Angle Project"). You can reload the selection anytime and carry it into the PDF viewer and other tabs that support selections.
7. Product codes and the regulations tree
Click a product code in the results to jump to it in the regulations tree — identification text, sibling product codes, and devices you can open in a PDF viewer on the right. Click a regulation number to see its identification, special controls, and related product codes. You can also search by product code or regulation number at the top of the tree. Always read the special controls if any exist for your device — it broadens your search and sharpens pre-kickoff research.
What can you do from the regulations tree view?
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.
8. Chart view
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.