PSLT for PASCAL Streamline

K171488 · Topcon Medical Laser Systems, Inc. · HQF · Nov 27, 2017 · Ophthalmic

Device Facts

• Record ID: K171488
• Device Name: PSLT for PASCAL Streamline
• Applicant: Topcon Medical Laser Systems, Inc.
• Product Code: HQF · Ophthalmic
• Decision Date: Nov 27, 2017
• Decision: SESE
• Submission Type: Traditional
• Regulation: 21 CFR 886.4390
• Device Class: Class 2
• Attributes: Therapeutic

Intended Use

Pattern Scanning Laser Trabeculoplasty (PSLT) software is intended for use with the PASCAL Streamline for procedures in trabeculoplasty in open angle glaucoma.

Device Story

PSLT is a software enhancement for the PASCAL Streamline laser system; simplifies trabeculoplasty by applying a fixed pattern of laser spots to the trabecular meshwork rather than single spots. Input: user-defined treatment parameters; Output: computer-guided, rapid, uniform, sub-visible laser treatment patterns (39 spots in 3 rows of 13). Used in clinical settings by ophthalmologists. The software enables precise alignment to the trabecular meshwork, facilitating faster, easier applications. Clinical benefit: effective intraocular pressure (IOP) control in open angle glaucoma patients with a minimally traumatic procedure.

Clinical Evidence

Prospective, randomized, controlled study (n=58 eyes) comparing PSLT to standard laser trabeculoplasty. Primary endpoint: change in IOP from baseline to 1-month post-surgery. Secondary endpoint: success at 1-month post-surgery. Statistical analysis included 2-tailed unpaired t-test, chi-square, Mann-Whitney U, and Kaplan-Meier survival analysis. Results showed similar safety and efficacy profiles between PSLT and predicate modalities, supporting the indications for use.

Technological Characteristics

Software-based enhancement for PASCAL Streamline laser. Frequency-doubled solid-state laser source (532nm or 577nm). Delivery via slit lamp adapter with optical fiber. Aiming beam: 635nm direct diode. Pulse duration: 5-10 ms. Spot size: 100 µm. Fluence: 42 J/cm². Connectivity: integrated software feature.

Indications for Use

Indicated for patients with open angle glaucoma, including pseudo-exfoliative and pigmentary glaucoma, requiring bilateral laser trabeculoplasty for intraocular pressure control. Contraindicated in patients with refractory glaucoma, prior ocular laser procedures (SLT, LPI) or intraocular surgery for glaucoma, corneal/conjunctival abnormality precluding contact lens adaptation, or severe dry eye syndrome.

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.

Predicate Devices

• PASCAL® Streamline (K100019)
• PASCAL Streamline 577 (K111108)

Reference Devices

• Selecta Family of Laser Systems (K081704)
• IRIDEX IQ Laser Systems (K071687)

Submission Summary (Full Text)

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November 27, 2017

Topcon Medical Laser Systems, Inc. Sweta Srivastava Manager, Regulatory and Clinical Affairs 606 Enterprise Ct. Livermore, CA 94550

Re: K171488

Trade/Device Name: PSLT for PASCAL Streamline Regulation Number: 21 CFR 886.4390 Regulation Name: Ophthalmic Laser Regulatory Class: Class II Product Code: HQF, GEX Dated: October 11, 2017 Received: October 16, 2017

Dear Sweta Srivastava:

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, 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.

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.

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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 devicerelated adverse events) (21 CFR 803); 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.

Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.

For comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/MedicalDevices/DeviceRegulationandGuidance/) and CDRH Learn (http://www.fda.gov/Training/CDRHLearn). 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 (http://www.fda.gov/DICE) for more information or contact DICE by email ([e-mail]) or phone [phone] or 301-796-7100).

Sincerely,

# Denise L. Hampton -S

for Malvina B. Eydelman, M.D. 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) K171488

Device Name PSLT for PASCAL Streamline

Indications for Use (Describe)

Pattern Scanning Laser Trabeculoplasty (PSLT) software is intended for use with the PASCAL Streamline for procedures in trabeculoplasty in open angle glaucoma.

X Prescription Use (Part 21 CFR 801 Subpart D)

| Over-The-Counter Use (21 CFR 801 Subpart C)

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### 510(k) Summary

## PSLT for PASCAL Streamline

#### 1. Submission Sponsor

Topcon Medical Laser Systems, Inc.
606 Enterprise Ct.,
Livermore,
CA, 94550
USA

| Contact: | Sweta Srivastava |
|----------|------------------------------------------|
| Title: | Manager, Regulatory and Clinical Affairs |
| Phone: | 925.245.7721 |

2. Date Prepared
November 27, 2017

#### 3. Device Identification

| Trade/Proprietary Name: | PSLT for PASCAL Streamline |
|-------------------------|-----------------------------------------------------|
| Common/Usual Name: | Laser surgical instrument |
| Classification Name: | Ophthalmic laser/ Powered laser surgical instrument |
| Regulation Number: | 886.4390 |
| Product Code: | HQF, Ophthalmic laser |

Device Class: Class II

Classification Panel: Ophthalmic and General & Plastic Surgery

#### 4. Legally Marketed Predicate Device(s)

Predicate Device: K100019, PASCAL® Streamline Classification Name: Ophthalmic laser

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Regulation Number: 886.4390 Product Code: HQF Classification: Class II

Predicate Device: K111108, PASCAL Streamline 577 (with accessories) Classification Name: Ophthalmic laser Regulation Number: 886.4390 Product Code: HQF Classification: Class II

Reference Device #1: K081704, Selecta Family of Laser Systems Classification Name: Powered Laser Surgical Instrument Regulation Number: 886.4810 Product Code: GEX, HQF Classification: Class II

Reference Device #2: K071687, IRIDEX IQ Laser Systems Classification Name: Powered Laser Surgical Instrument Regulation Number: 886.4810 Product Code: GEX Classification: Class II

#### 5. Indication for Use Statement

Pattern Scanning Laser Trabeculoplasty (PSLT) software is intended for use with the PASCAL Streamline for procedures in trabeculoplasty in open angle glaucoma.

#### 6. Device Description

Pattern Scanning Laser Trabeculoplasty (PSLT) is a software option for the currently marketed PASCAL Streamline (K100019 and K111108). It represents an enhancement intended to simplify the laser trabeculoplasty procedure by applying a fixed pattern of locations to the trabecular meshwork instead of a single spot. Additionally, this modification offers greater multi-functionality for the management of glaucoma. PSLT provides rapid, defined, uniform and minimally traumatic (sub-visible) computer-guided treatment with exact abutment of the patterns readily align to the trabecular meshwork, allowing more rapid and easier applications. Once the software is enabled, the PSLT feature is always available.

#### 7. Substantial Equivalence Discussion

The PASCAL Streamline with PSLT option has similar performance characteristics, the same environment of use and patient populations as currently marketed predicate devices. The labeling and instructional information, including warning and caution statements, is similar to that of the predicate devices. The

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addition of this new feature does not raise new questions of safety and effectiveness for the PASCAL Streamline.

| Manufacturer | TopCon Medical Laser<br>Systems, Inc. | TopCon Medical Laser<br>Systems, Inc. | Device Comparison |
|---------------------------------|---------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Trade Name | PASCAL Streamline PSLT | PASCAL Streamline | |
| 510(k) Number | K171488 | K100019 | -- |
| Product Code | HQF | HQF | -- |
| Regulation<br>Number | 886.4390 | 886.4390 | -- |
| Regulation Name | Ophthalmic laser | Ophthalmic laser | -- |
| Indications for Use | Intended for use with<br>PASCAL Streamline for<br>procedures in<br>trabeculoplasty in open<br>angle glaucoma. | Intended for use in the<br>treatment of ocular<br>pathology in the posterior<br>segment. Retinal<br>photocoagulation,<br>panretinal<br>photocoagulation, focal<br>photocoagulation and grid<br>photocoagulation for<br>vascular and structural<br>abnormalities of the<br>retina and choroid<br>including:<br>Proliferative and<br>nonproliferative<br>diabetic<br>retinopathy Macular edema Choroidal | Different; the subject<br>device has different<br>indications for use, same<br>intended use. The<br>expanded indications for<br>use was tested in a clinical<br>study. |
| Manufacturer | TopCon Medical Laser<br>Systems, Inc. | TopCon Medical Laser<br>Systems, Inc. | Device Comparison |
| Trade Name | PASCAL Streamline PSLT | PASCAL Streamline | |
| | | neovascularization Branch and central retinal vein occulusion Age-related macular degeneration Lattice degeneration Retinal tears and detachments Intended for use in the treatment of ocular pathology in the anterior segment including: Iridotomy trabeculoplasty | |
| Output<br>Wavelength (nm) | 532 (green) | 532 (green) | Same |
| Treatment Laser<br>Sources | Frequency doubled solid-state | Frequency doubled solid-state | Same |
| Treatment Laser<br>Power | Up to 2W | Up to 2W | Same |
| Aiming Beam λ<br>(power output) | 635 nm; Direct diode<br>(adjustable to < 1mW) | 635 nm; Direct diode<br>(adjustable to < 1mW) | Same |
| Type of delivery<br>system | Slit lamp adapter with<br>optical fiber connected to<br>a separate laser source | Slit lamp adapter with<br>optical fiber connected to<br>a separate laser source | Same |
| Endpoint | Non-visible | Non-visible | Same |
| Spot size (μm) | 100 | 50 - 400 | Similar; The proposed<br>device is different in Spot<br>Size from the predicate,<br>the proposed devices'<br>pulse duration range is |
| Manufacturer | TopCon Medical Laser<br>Systems, Inc. | TopCon Medical Laser<br>Systems, Inc. | Device Comparison |
| Trade Name | PASCAL Streamline PSLT | PASCAL Streamline | |
| | | | cover the predicates' and<br>both proposed device and<br>predicate has same<br>Fluence, therefore, this<br>difference will not affect<br>the substantial<br>equivalence. |
| Pulse Duration | 5 ms – 10 ms | 10 ms – 1000 ms | Similar; less pulse<br>duration, both have same<br>Fluence, therefore, this<br>difference will not affect<br>the substantial<br>equivalence. |
| Number of spots<br>per pattern | 39 spots (3 rows of 13<br>spots) | Single spot | Different; total number of<br>spots more than predicate<br>device, both have same<br>Fluence, therefore, this<br>difference will not affect<br>the substantial<br>equivalence. |
| Total energy<br>delivered | 3.5J | 3.5J | Same |
| Energy per pulse | 3.3 mJ | 3.3 mJ | Same |
| Fluence | 42 J/cm² | 42 J/cm² | Same |
| % of TM covered | 63 | 63 | Same |

#### Table A – Comparison of Characteristics

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#### Table B – Comparison of Characteristics

| Manufacturer | TopCon Medical Laser<br>Systems, Inc. | TopCon Medical Laser<br>Systems, Inc. | Device Comparison | Manufacturer | TopCon Medical Laser<br>Systems, Inc. | TopCon Medical Laser<br>Systems, Inc. | Device Comparison |
|----------------------|--------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------|---------------------------------------|---------------------------------------|-------------------|
| Trade Name | PASCAL Streamline PSLT | PASCAL Streamline 577 | | Trade Name | PASCAL Streamline PSLT | PASCAL Streamline 577 | |
| 510(k) Number | K171488 | K111108 | -- | | | | |
| Product Code | HQF, GEX | HQF | -- | | | | |
| Regulation<br>Number | 878.4810 and 886.4390 | 886.4390 | -- | | | | |
| Regulation Name | Powered Laser Surgical<br>Instrument and<br>Ophthalmic laser | Ophthalmic laser | -- | | | | |
| Indications for Use | Intended for use with<br>PASCAL Streamline for<br>procedures in<br>trabeculopasty in open<br>angle glaucoma. | Intended for use in the<br>treatment of ocular<br>pathology in the posterior<br>segment. Retinal<br>photocoagulation,<br>panretinal<br>photocoagulation, focal<br>photocoagulation and grid<br>photocoagulation for<br>vascular and structural<br>abnormalities of the<br>retina and choroid<br>including:<br>• Proliferative and<br>nonproliferative<br>diabetic<br>retinopathy<br>• Macular edema<br>• Choroidal neovascularization<br>• Branch and<br>central retinal<br>vein occlusion<br>• Age-related<br>macular<br>degeneration | Different; the subject<br>device has different<br>indications for use, same<br>intended use. The<br>expanded indications for<br>use was tested in a clinical<br>study. | | | | |

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| Manufacturer | TopCon Medical Laser<br>Systems, Inc. | TopCon Medical Laser<br>Systems, Inc. | Device Comparison |
|---------------------------------|---------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Trade Name | PASCAL Streamline PSLT | PASCAL Streamline 577 | |
| | | ●<br>Lattice<br>degeneration<br>●<br>Retinal tears and<br>detachments<br>Intended for use in the<br>treatment of ocular<br>pathology in the anterior<br>segment including:<br>●<br>Iridotomy<br>trabeculoplasty<br>● | |
| Output<br>Wavelength (nm) | 577 | 577 (yellow) | Same |
| Treatment Laser<br>Sources | Frequency doubled solid-<br>state | Frequency doubled solid-<br>state | Same |
| Treatment Laser<br>Power | Up to 2W | Up to 2W | Same |
| Aiming Beam λ<br>(power output) | 635 nm; Direct diode<br>(adjustable to < 1mW) | 635 nm; Direct diode<br>(adjustable to < 1mW) | Same |
| Type of delivery<br>system | Slit lamp adapter with<br>optical fiber connected to<br>a separate laser source | Slit lamp adapter with<br>optical fiber connected to<br>a separate laser source | Same |
| Endpoint | Non-visible | Non-visible | Same |
| Spot size (µm) | 100 | 60 - 400 | Similar; The proposed<br>device is different in Spot<br>Size from the predicate,<br>the proposed devices'<br>pulse duration range is<br>cover the predicates' and<br>both proposed device and<br>predicate has same<br>Fluence, therefore, this<br>difference will not affect<br>the substantial<br>equivalence. |
| Manufacturer | TopCon Medical Laser<br>Systems, Inc. | TopCon Medical Laser<br>Systems, Inc. | Device Comparison |
| Trade Name | PASCAL Streamline PSLT | PASCAL Streamline 577 | |
| Pulse Duration | 5 ms – 10 ms | 5 ms – 1000 ms | Similar; less pulse<br>duration, both have same<br>Fluence, therefore, this<br>difference will not affect<br>the substantial<br>equivalence. |
| Number of spots<br>per pattern | 39 spots (3 rows of 13<br>spots) | Single spot | Different; total number of<br>spots more than predicate<br>device, both have same<br>Fluence, therefore, this<br>difference will not affect<br>the substantial<br>equivalence. |
| Total energy<br>delivered | 3.5J | 3.5J | Same |
| Energy per pulse | 3.3 mJ | 3.3 mJ | Same |
| Fluence | 42 J/cm² | 42 J/cm² | Same |
| % of TM covered | 63 | 63 | Same |

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#### 8. Non-Clinical Performance Data

Software verification and validation testing was performed in accordance with FDA's Guidance for the Content of Premarket Submissions for Software contained in Medical Devices (2005). The results of all verification and validation testing demonstrate that all design and system requirements for the PASCAL Streamline with PSLT option have been met.

#### 9. Clinical Performance Data

A clinical study was conducted to evaluate safety and efficacy of the PSLT for PASCAL Streamline to for procedures in trabeculoplasty in patients with open angle glaucoma. The study was a prospective, randomized, controlled study of patients with open angle glaucoma that required bilateral laser trabeculoplasty for intraocular pressure control. The overall design of the clinical study is shown as follows:

- . Clinical Endpoints - (primary endpoint) change in IOP from baseline to 1-month post-surgery as measured by tonometry and (secondary endpoint) success at 1-month post-surgery as measured by tonometry and CLS derived parameters.

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- . Subject Criteria – The target population includes subjects fulfilling the standard criteria of the investigational site, who have given informed consent to participate in the study.
- . Subject Inclusion/Exclusion – Inclusion - diagnosis of open angle glaucoma (OAG) including pseudo-exfoliative and pigmentary glaucoma; patients requiring bilateral laser trabeculoplasty for IOP control; structural glaucomatous damage and/or documented glaucomatous VF damage (in the previous 12 months with mean defect (MD) > 2.5 dB; no or stable anti-glaucomatous drug therapy since at least 3 months. Exclusion – refractory glaucoma, patients having undergone ocular laser procedures (SLT, LPI) or intraocular surgery for the treatment of glaucoma; corneal or conjunctival abnormality precluding contact lens adaptation; or severe dry eve syndrome.
- Study Monitoring - primary endpoints were evaluated at the 1, 3, 6, and 12-month endpoint
- Data Analysis – the modified intent to treat was used in the analysis to the data. Data were analyzed statistically using a 2-tailed unpaired t test, chi-square test, Mann-Whitney U test, repeated-measures analysis of variance. Kaplan-Meier survival analysis with Mantel-Cox logrank test was used to compare outcomes between groups. The sample size of 58 eyes was calculated to have sufficient power (at least 80% and two-sided alpha of 0.05) to detect to reject the null hypothesis of an inter-group IOP difference of 3 mmHg with a standard deviation of 3.5 mmHg at 1 month. The chief outcome measure was absolute change in IOP from baseline.

Results of the clinical investigation support the indications for use of the PSLT for PASCAL Streamline to for procedures in trabeculoplasty in patients with open angle glaucoma by achieving clinical endpoints. Both laser modalities had similar safety and efficacy profiles. Clinical study conclusion confirms that the device is safe and effective as used according to the instructions for use.

#### 10. Conclusion

The PSLT for PASCAL Streamline has similar intended use and technological characteristics as the predicate device, and therefore, is substantially equivalent to the predicate device. Preclinical and clinical study results demonstrate the substantial equivalence as well as the safety and effectiveness of the PSLT for PASCAL Streamline laser for use in trabeculoplasty. Additionally, the new device does not raise additional questions regarding its safety and effectiveness when compared to the predicate device(s).

The PSLT for PASCAL Streamline, as designed and manufactured, is determined to be substantially equivalent to the referenced predicate device(s).