(108 days)
The Plasma Shield is to be used prior to and during endoscopic procedures to prevent fogging of the scope lens
The Plasma Shield is intended to be used prior to and during endoscopic and laparoscopic procedures to prevent fogging of the scope lens. The Plasma Shield device is designed for reducing laparoscopic lens fogging by performing cold plasma treatment of a laparoscope lens. The Plasma Shield device is a cold plasma-based device to be used in an operating room, prior to and during laparoscopic procedures. The cold plasma creates a super hydrophilic scope lens surface after treatment (aka activation). The device does not interact directly with the patient's body.
Here's a breakdown of the acceptance criteria and the study proving the device meets them, based on the provided FDA 510(k) summary for the "Plasma Shield" device:
Acceptance Criteria and Device Performance
A formal table of "acceptance criteria" is not explicitly presented in the provided text with numerical targets for all performance aspects. However, based on the non-clinical testing sections and the conclusions regarding substantial equivalence, we can infer the key performance criteria the Plasma Shield was evaluated against. The primary implicit acceptance criterion is demonstrating substantial equivalence to the predicate devices, particularly regarding anti-fogging effectiveness.
Here's an inferred table of key performance aspects and how the Plasma Shield performed:
| Performance Aspect | Acceptance Criteria (Inferred from comparisons and testing) | Reported Device Performance |
|---|---|---|
| Primary Indication: Anti-Fogging Effect | Plasma Shield should prevent fogging of the scope lens effectively, demonstrating substantial equivalence to predicate devices (Clearify and DHELP). | "Overall, both Plasma Shield and Clearify scope pretreatment received a higher score compared to none treated scope following video evaluation in all experimental conditions tested.""It can be concluded that Plasma Shield scope pretreatment is comparable to Clearify in its effectiveness to prevent fogging on the scope during laparoscopy and both are better in grading than no treatment, therefore demonstrating substantial equivalence between the devices.""Plasma-induced surface activation should create a hydrophilic scope lens surface to reduce scope lens fogging as effectively as the predicate device...""The Plasma activated lenses of all tested scope are Super Hydrophilic and comparison to untreated lenses show highly improved contact angles." |
| Scope Compatibility | Interfaces with laparoscopes of 5mm and 10mm diameter, with 0-45 angles. | "The Plasma Shield interfaces with laparoscopes of 5mm and 10mm diameter, with 0-45 angles.""The system shall perform lens activation for scopes of 0, 30, and 45 angles, and different materials." |
| Safety (Electrical & EMC) | Compliance with IEC 60601-1, IEC 60601-1-2, and IEC 60601-2-2. | "FR Number 19-4 07/09/2014 ANSI AAMI ES60601-1:2005/(R)2012... Medical electrical equipment - Part 1: General requirements for basic safety and essential performance...""FR Number 19-8 09/17/2018 IEC 60601-1-2- Edition 4.0 2014-02... Electromagnetic disturbances - Requirements and tests.""FR Number 6-389 06/07/2021 IEC 60601-2-2 Edition 6.0 2017-03... sections 202.7, 202.8 ONLY.""Plasma Shield conforms to the requirements of IEC 60601-1-2 and 6061-2-2 sections 202.7 and 202.8." |
| Biocompatibility | No additional risk, materials are well categorized and biologically evaluated. | "The subject device is categorized per Annex A of ISO 10993-1 as a medical device with no body contact. No further testing is deemed necessary.""This difference has no impact on the device safety, since all device materials are well categorized, and biologically evaluated." Compliance with ISO 10993-1:2018.** |
| Sterilization | Compliance with ISO 11135 (for ETO sterilization). DP packaging integrity and shelf-life verified. | "ETO Sterilization validation (according to ISO 11135) was performed..."Packaging validation (ISO 11607-1), shelf-life validation (ASTM F 1980:2016), and packaging/shipping/environment (ASTM D4169-16, ASTM D4332-14) were conducted and passed.** |
| Cleaning Validation (Reusable Part) | Cleaning process for reusable part must be validated, comply with TIR30. | "Manual cleaning process validation for the Plasma Shield reusable device, based on our Study, was performed and passed testing in accordance with TIR30.""The reusable device is covered by a sterile drape in-between use." |
| Usability | Device can be easily operated by potential end users safely according to instructions. | "All the subjects succeeded to perform the device related tasks, with minimal number of requests for assistance and with no errors or inefficiencies.""following the summarized results, it can be concluded that the study success criteria was completely met..." (Compliance with IEC 62366-1:2015, FDA Guidance "Applying Human Factors and Usability Engineering to Medical Devices" Feb 2016, ANSI/AAMI NS4 2013 (R)2017). |
| Software | Software verification and validation conducted, "Minor" level of concern, risks mitigated. | "Software verification and validation testing were conducted, and documentation was provided as recommended by FDA's Guidance...""The software for this device was considered as a 'Minor' level of concern.""The details about the software were clearly demonstrated... and the risks related to the software products were mitigated." |
| Risk Management | Compliance with ISO 14971: 2019. | "The proposed subject Plasma Shield Device complies with the ISO 14971: 2019 Medical devices - Application of risk management to medical devices' test standard." |
Study Details Proving Device Meets Acceptance Criteria
The primary study mentioned to demonstrate the core anti-fogging effectiveness is an animal study.
1. A table of acceptance criteria and the reported device performance:
Refer to the table above.
2. Sample sized used for the test set and the data provenance:
* Test Set Sample Size: The document mentions "live anesthetized pig" and refers to "swine" in the comparison study. It does not explicitly state the number of pigs or the number of specific procedures/measurements performed within those pigs. It refers to "a series of experiments" and "all experimental conditions tested."
* Data Provenance: The study was conducted on "live anesthetized pig/swine." The country of origin of the data is not specified. It is a prospective animal study ("Comparison of Plasma Shield vs. Clearify. Anti-fogging Devices, and Using Laparoscopy in Swine" was conducted and included in the submission).
3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts:
* This information is not provided in the document. The evaluation involved "video evaluation," but it doesn't state how many experts performed this evaluation or their qualifications.
4. Adjudication method (e.g. 2+1, 3+1, none) for the test set:
* Not specified. The document mentions "video evaluation" but does not detail any adjudication process for how scores or conclusions were reached from this evaluation.
5. If a multi reader multi case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance:
* No, an MRMC study was NOT done. This document describes an animal study comparing the device against a predicate device and no treatment. It is an anti-fogging device, not an AI-based diagnostic tool, so the concept of human readers improving with AI assistance is not applicable here.
6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done:
* This is not an AI algorithm. The device, "Plasma Shield," is a physical device that performs cold plasma treatment. Its "standalone" performance was evaluated in the animal study by directly observing its anti-fogging effect compared to predicate devices and no treatment.
7. The type of ground truth used (expert consensus, pathology, outcomes data, etc):
* The ground truth for anti-fogging effectiveness appears to be established through direct visual assessment (via video evaluation) of fog formation during laparoscopic procedures in swine, compared to a control (no treatment) and a predicate device. This is a direct measurement of the device's intended function in a relevant physiological model.
8. The sample size for the training set:
* Not applicable. This is a physical medical device, not an AI model that requires a training set.
9. How the ground truth for the training set was established:
* Not applicable. See point 8.
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September 12, 2022
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Plasmatica LTD % Vaibhav Rajal Official Correspondent for Plasmatica LTD MDI Consultants Inc 55 Northern Blvd Great Neck, New York 11021
Re: K221533
Trade/Device Name: Plasma Shield Regulation Number: 21 CFR 876.1500 Regulation Name: Endoscope And Accessories Regulatory Class: Class II Product Code: GCJ, OCT Dated: May 2, 2022 Received: May 27, 2022
Dear Vaibhav Rajal:
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. 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 located 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.
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
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801); medical device reporting of medical device-related adverse events) (21 CFR 803) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-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 4, Subpart A) for combination products; 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 https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.
For comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/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-device-advice-comprehensive-regulatoryassistance/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,
for
Long Chen, Ph.D. Assistant Director DHT4A: Division of General Surgery Devices OHT4: Office of Surgical and Infection Control Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health
Enclosure
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Indications for Use
510(k) Number (if known) K221533
Device Name Plasma Shield
Indications for Use (Describe)
The Plasma Shield is to be used prior to and during endoscopic procedures to prevent fogging of the scope lens
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)
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Sponsor: PLASMATICA Subject Device: Plasma Shield, Model: .1.0 Document Name: FDA 510(k) Company Cover Letter
510(k) SUMMARY
The assigned 510(k) number is K221533
1. Submitter's Identification:
Plasmatica LTD. HaTa'asiya ST 25 Ra'anana, Israel. 4365413.
| Contact Person: | Mr. Adam SagivChief Executive Officer and Founder |
|---|---|
| Telephone: | +972-52-2232562 |
| Email: | Adam@plasmatica.com |
Date Summary Prepared: September 8, 2022
2. Name of the Device:
| Trade Name: | Plasma Shield |
|---|---|
| Regulation Number: | 21 CFR 876.1500 |
| Regulatory Class: | Class II |
| Product Code: | OCT, GCJ |
3. Information for the 510(k) Cleared Device (Predicate Device):
| FDA Product Code | Common Name | Regulation Number |
|---|---|---|
| OCT | Anti-Fog Solution And Accessories, Endoscopy | 876.1500 |
| GCJ | Laparoscope, General & Plastic Surgery | 876.1500 |
4. Device Description:
The Plasma Shield is intended to be used prior to and during endoscopic and laparoscopic procedures to prevent fogging of the scope lens. The Plasma Shield device is designed for reducing laparoscopic lens fogging by performing cold plasma treatment of a laparoscope lens. The Plasma Shield device is a cold plasma-based device to be used in an operating room, prior to and during laparoscopic procedures. The cold plasma creates a super hydrophilic scope lens surface after treatment (aka activation). The device does not interact directly with the patient's body.
The Plasma Shield consists of these components and accessories:
- The main system is a Reusable Part (RP) that generates the cold plasma . required to treat the scope for defogging.
- A Disposable Part (DP) a single-use, sterilized component interfacing with the ● scope itself and used for each procedure (can be used multiple times within the
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same procedure for the same patient). The DP assembly includes a folded surgical drape and packaged in a pouch.
A single-use, sterile anti-fog solution and foam is supplied together with the Disposable Part.
5. Indications for Use:
The Plasma Shield is to be used prior to and during endoscopic and laparoscopic procedures to prevent fogging of the scope lens
6. Comparison to the 510(k) Cleared Devices (Predicate Devices):
Table of Comparison to Legally Marketed Device and Discussion of Similarities and Differences:
The proposed subject device is being compared to the predicate devices identified under Section 1(i): Identification of Legally Marketed Device Which We Claim Substantial Equivalence;
| Parameters | Subject Device | Primary Device | Predicate | Reference Device | Predicate | Similarities or Differences |
|---|---|---|---|---|---|---|
| Device Name | Plasma Shield | Scope System/See Sharp | Antifogging | DHELP/Clearify | ||
| Manufacturer | Plasmatica Ltd. | Xodus Medical, Inc. | New Wave/Medtronic | |||
| Regulatory Pathway | 510(k) | 510(k) | 510(k) | Same | ||
| 510(k)/De Novo number | TBD | K182080 | K062779 | |||
| Classification | II | II | II | Same | ||
| Product Code | GCJ, OCT | GCJ, OCT | GCJ, OCT | Same | ||
| Regulation Number | 876.1500 | 876.1500 | 876.1500 | Same | ||
| Regulation Name | Endoscope and accessories | Endoscope and accessories | Endoscope and accessories | Same | ||
| Regulation Medical Specialty Panel | Gastroenterology/Urology | Gastroenterology/Urology | Gastroenterology/Urology | Same | ||
| General & Plastic Surgery | General & Plastic Surgery | General & Plastic Surgery | Same | |||
| Intended Use | The Plasma Shield is to be used prior to and during endoscopic and laparoscopic procedures to prevent fogging of the scope lens | The Scope Antifogging System is intended use for this device is to be used prior to and during endoscopic and laparoscopic procedures to prevent fogging of the endoscope and laparoscope lens. | DHELP is intended to be used prior to and during endoscopic and laparoscopic procedures to prevent fogging of the endoscope and laparoscope lens. | Similar | ||
| Technological Characteristics | 1) Mechanism of Action involves Cold Plasma | 1) Mechanism of Action involves heating and | 1) Mechanism of Action involves heating and | See NOTE 1 |
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| treatmentofalaparoscope lens.2) Uses antifog solution.3) Compact device thatenables intra-abdominalvisibility in laparoscopicprocedures.4) Consists of a reusablemain system, disposablepart (sterile) with Anti-Fogsolution and spongeapplicator (both sterile).5) Compatible withlaparoscopes of 5mm to10mm. | dipping of distal end ofendoscope/laparoscopeinto solution2) Uses antifog solution3) Compact device thatenables intra-abdominalvisibility in laparoscopicprocedures4) Device is small, sterile,and disposable with Anti-Fog solution, sponge, andtrocar wipes (sterile).5) Compatible withlaparoscopes of 5mm to12mm. | dipping distal endofendoscope into solution.2) Uses antifog solution.3) Compact device thatenables intra-abdominalvisibility in laparoscopicprocedures.4) Device is small, sterile,and disposable with Anti-Fog solution, spongeapplicator and trocarwipes (sterile).5) Compatible withlaparoscopes of 5mm to10mm. | Li-Ion Battery pack of thedevice) 12.6V and 0.5Aand DC power jack.When the device is beingcharged, it is turned off bydesign. | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Performancetesting | Testing conducted withlive anesthetized pig. AStryker endoscopysystem was used with a10mm and 5mm Strykerscope, and Plasma Shieldwas evaluated in a seriesof experiments. Riskanalysis, Biocompatibility(ISO 10993-1),Sterilization,Electrical and EMC basedon IEC 60601-1-2 and60601-1, SW V&V, benchtesting, Life ExpectancyVerification,Lens Fogging Validation,usability simulated usetesting to demonstrateeffectiveness in a surgicalenvironment simulationchamber. | Testing conducted withlive anesthetized pig. AKarl Storz endoscopysystem was used with a5mm and 10mm Storzlaparoscope. A series ofexploratory procedureswith 4 different Storzlaparoscope types wereused. Cleaning andapplication of antifoggingsolution to the scopes fordetermination of foggingprevention was performedin several instances. LensFogging Validation, LensWiping of DebrisValidation, LifeExpectancy Validation,Trocar Wiping Validation,Biocompatibility, ElectricalSafety and EMC testingwere also conducted. | Testing conducted withlive anesthetized pig. AStryker 888 endoscopysystem was used with a10mm and 5mm Strykerlaparoscope, and DHELPwas evaluated in series ofexperiments with varyingtemperatures andsurfactant concentrationsand by comparison to thecurrent defoggingmethods. DHELP wasalso used with 4 differentlaparoscope types and onOlympus, Stryker andStorz camera systems tomake sure that it wasfunctionally compatiblewith the most commonscopes and systems.Temperature testing wasconducted on the DHELPdevice. Risk Analysis andbiocompatibility testingwere also conducted. | See NOTE 2 | Electrical safety | Electrical safety and EMCcompatibility testing wassuccessfully conductedon the Scope AntifoggingSystem. The systemcomplies with the IEC60601-1-2 standard forEMC.The Scope Antifoggingsystem was electricalsafety tested under theStandard IEC 60601-1. | Electrical safety and EMCcompatibility testing wassuccessfully conductedon the Scope AntifoggingSystem. The systemcomplies with the IEC60601-1-2 standard forEMC.The Scope Antifoggingsystem shall be electricalsafety tested under theStandard IEC 60601-1. | No information available | |
| Clinical Studies | Not conducted | Not conducted | Not conducted | Similar | Materials,Biocompatibility,and ChemicalSafety | Biocompatible plasticshousing FDA approvedAnti-fog solution kit | Biocompatible plasticshousingAnti-fog solution: Water,Isopropanol, Ethanol,Surfactant | Biocompatible plasticshousing FDA approvedShurClens woundcleaning surfactant | Similar |
| Compatibilitywith theenvironment andother devices | Compatible withendoscope andlaparoscope | Compatible withendoscope andlaparoscope | Compatible withendoscope andlaparoscope | Similar | Similarities toSubject Device | NA | Intended Use andcompatibility with scopesof 5mm to 12mm | Intended Use andcompatibility with scopesof 5mm to 10mm | Similar |
| Energy usedand/or delivered | RF | Heat radiation | Heat (Infrared) radiation | See NOTE 3 | Weight | 1 kg max | No information available | 155 g | |
| Where used(hospital, home,ambulance, etc.) | Hospitals and/or surgerycentres on or by the orderof a physician | Hospitals and/or surgerycentres on or by the orderof a physician | Hospitals and/or surgerycentres on or by the orderof a physician | Same | Dimensions | 15107 cm | No information available | 976 cm | |
| Designperformance | Cell batteries at 11.1Vand a BMS (batterymanagement system) anda Li-Ion battery charger | Cell BatteryNo charger | Cell BatteryNo charger | See NOTE 4 | Sterilization | ETO | Gamma Radiation | Gamma Radiation | See NOTE2 |
| Operatingenvironmentalconditions | Temp: 10-40°CRel Humid: 20-80%Atm Pres: 90-106 kPa | Temp: 5-40°CRel Humid: 15-95%Atm Pres: 70-106 kPa | No information available | Similar |
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Discussion of Similarities and Differences between the proposed subject device and both the primary and reference predicate devices.
Comparison of intended use
Plasma Shield and predicate have identical indications for use. Plasma Shield and predicate have an identical primary intended use.
Technological Characteristic Comparison to Predicate
Comparison in Detail(s):
NOTE 1: Plasma Shield does not raise any additional risk to the patient when applied on commercially available laparoscopes comprised of stainless steel and glass. The subject device mechanism of action utilizes Cold Plasma while the predicate and reference device mechanism of action uses heat for introducing the fogging effect. Cold plasma treatment has a long (over 25 years) history of safe use in medical applications, i.e., sterilization of medical devices made of stainless steel and glass.
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In addition to a disposable part, the subject device has a reusable part, which is not the case of the predicate and reference devices. This fact raises no additional safety concern since the reusable part was fully validated for cleaning and is fully in compliance with the TIR30 reusable standard requirements. The reusable device is covered by a sterile drape in-between use.
Cleaning Validation:
Manual cleaning process validation for the Plasma Shield reusable device, based on our Study, was performed and passed testing in accordance with TIR30.
Ingress tests:
A ingress test was performed for determining the viability of organisms after being exposed to the Single Use part of the Plasma Shield multiple times, at worst case system operation conditions, concluded that all test method acceptance criteria were met. Testing was performed in compliance with US FDA good manufacturing practice (GMP) regulations 21 CFR Parts 210, 211, and 820.
NOTE 2: The following tests for Electrical and EMC based on IEC 60601-1-2 and 60601-1. SW V&V, and usability simulated use testing were conducted in addition to the special controls conducted on the predicate device:
Software Verification and Validation Testing
Software verification and validation testing were conducted, and documentation was provided as recommended by FDA's Guidance for Industry and FDA Staff, "Guidance for the Content of Premarket Submissions for Software Contained in Medical Devices." The software for this device was considered as a "Minor" level of concern.
Usability Study Report
All the subjects succeeded to perform the device related tasks, with minimal number of requests for assistance and with no errors or inefficiencies. Following the summarized results, it can be concluded that the study success criteria was completely met, and that the Plasma Shield device can be easily operated by the potential end used safely according to the instructions manual.
Animal testing to demonstrate effectiveness in porcine model report: "Comparison of Plasma Shield vs. Clearify. Anti-fogging Devices, and Using Laparoscopy in Swine" was conducted and included in the submission.
The results of the risk analysis (according to ISO 14971) performed on Plasma Shield is detailed in the Plasma Shield Risk Analysis Report.
The subject device is categorized per Annex A of ISO 10993-1 as a medical device with no body contact. No further testing is deemed necessary. This difference has no impact on the device safety, since all device materials are well categorized, and biologically evaluated.
An ETO Sterilization validation (according to ISO 11135) was performed in the study titled EO Sterilization Validation for Clarity One of Plasmatica Ltd.
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NOTE 3:
With reqards to the use of radio frequency. Plasma Shield does not raise any additional risk to the patient. Plasma Shield conforms to the requirements of IEC 60601-1-2 and 6061-2-2 sections 202.7 and 202.8.
NOTE 4:
The predicate, reference, and subject devices use reqular disposable batteries. The subject device, in addition, uses a Li-Ion battery charger, 12.6V and 0.5A and DC power jack. This fact raises no additional safety impact on the user. The Li-Ion battery is widely used in medical devices in a similar environment. It was tested and is fully compliant with the IEC 623166 standard under test report IEC 62133-2 Secondary cells and batteries containing alkaline or other non-acid electrolytes – Safety requirements for portable sealed secondary cells, and for batteries made from them, for use in portable applications - Part 2: Lithium systems.
Conclusions:
Comparison with the predicate and reference devices regarding functional characteristics shows that the subject device is intended for equivalent procedures as compared to the predicate and reference devices and makes use of similar functionality. The technological differences do not raise additional safety issues.
Substantial Equivalence Conclusion: The Sponsor has demonstrated through performance testing, design and features, and non-clinical testing, that the proposed subject device is substantially equivalent to the predicate and reference predicate devices.
The subject device Plasma Shield is Substantially Equivalent to the predicate and reference predicate devices.
7. Electrical and EMC Testing
The following testing supports testing information demonstrating safety and effectiveness of the Plasma Shield Device in the intended environment of use:
- FR Number 19-4 07/09/2014 ANSI AAMI ES60601-1:2005/(R)2012 and A1:2012, ● C1:2009/(R)2012 and A2:2010/(R)2012 (Consolidated Text) Medical electrical equipment - Part 1: General requirements for basic safety and essential performance (IEC 60601-1:2005, MOD)
- FR Number 19-8 09/17/2018 IEC 60601-1-2- Edition 4.0 2014-02 Medical ● electrical equipment - Part 1-2: General requirements for basic safety and essential performance - Collateral Standard: Electromagnetic disturbances -Requirements and tests
- FR Number 6-389 06/07/2021 IEC 60601-2-2 Edition 6.0 2017-03 Medical ● electrical equipment - Part 2-2: Particular requirements for the basic safety and essential performance of high frequency surgical equipment and high frequency surgical accessories. Sections 202.7, 202.8 ONLY
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8. Performance Testing:
Bench Performance testing was conducted on the proposed subject device to determine the performance and efficacy of the device. In addition, Performance testing – animal was conducted on the proposed subject device to compare the anti-fogging effect of Plasma Shield vs. Clearify™ devices during laparoscopy in swine. The study demonstrated the anti-fogging effect for both the proposed subject device and the predicate device.
Validation of product performance in compliance with the following product specification requirements was conducted on the proposed subject device:
- PRSJ.02: Scope's lens surface characteristics immediately post treatment (aka . activation): Plasma-induced surface activation should create a hydrophilic scope lens surface to reduce scope lens fogging as effectively as the predicate device, thereby demonstrating substantial equivalence.
- . PRS 4.3: The Plasma Shield interfaces with laparoscopes of 5mm and 10mm diameter, with 0-45 anqles.
- . PRS H.07: The system shall perform lens activation for scopes of 0, 30, and 45 angles, and different materials
The Plasma activated lenses of all tested scope are Super Hydrophilic and comparison to untreated lenses show highly improved contact angles. Product performance comply with the specification requirements. Therefore, plasma surface activation induced hydrophilicity reduces scope lens foqqing, conferring substantial equivalence with the predicate device working mechanism. Comparison with the predicate and reference devices regarding functional characteristics shows that the subject device is intended for equivalent procedures as compared to the predicate and reference devices and makes use of similar functionality.
Comparison of Proposed Subject Device Plasma Shield Vs. Clearify Predicate Device, Anti-Fogging Devices was conducted during Laparoscopy in Swine to compare the antifogging hydrophilicity effect of Plasma Shield vs. Clearify™ devices during laparoscopy in swine in order to demonstrate substantial equivalence.
Overall, both Plasma Shield and Clearify scope pretreatment received a higher score compared to none treated scope following video evaluation in all experimental conditions tested. These suggest that pretreatment of the scope with Plasma Shield or Clearify was more effective in preventing fog formation on the scope during laparoscopy compared to no treatment in these experimental settings. It can be concluded that Plasma Shield scope pretreatment is comparable to Clearify in its effectiveness to prevent fogging on the scope during laparoscopy and both are better in grading than no treatment, therefore demonstrating substantial equivalence between the devices.
9. Usability Studies
Usability Testing was conducted on the proposed subject device as per IEC 62366-1:2015, per FDA Guidance "Applying Human Factors and Usability Engineering to Medical Devices" February 2016 and ANSI/AAMI NS4 2013 (R)2017. In addition, the proposed subject device is in compliance with the IEC 60601-1-6 - Collateral Standard -Usability test standard.
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10. Sterilization and Product Shelf Life
The proposed subject device is composed of a reusable part (RP) and disposable part (DP). The DP is sealed and the sterile part contains electrodes intended to deliver the plasma to the scope. The following validations have been conducted on the proposed subject device:
| Test Name | Mainstandard/guideline | Essence | DPlevel | RPlevel | Systemlevel |
|---|---|---|---|---|---|
| Sterilizationvalidation | ISO 11135 | Conduct testing to ensure compliance to sterilization standard (ETO) | ✓ | ||
| Packagingvalidation DP | ISO 11607-1 | Conduct packaging integrity, storage and transportation tests per appropriate standards | ✓ | ||
| Shelf-lifevalidation | ASTM F 1980:2016 | Conduct shelf-life tests per appropriate standard to verify required device shelf life. | ✓ | ||
| Packaging,shipping andenvironment | ASTM D4169-16ASTM D4332-14 | Shipping performance and environmental testing | ✓ | ✓ |
11. Product Cleaning/Disinfection Information
The proposed subject device is composed of a reusable part (RP) and disposable part (DP). The RP cleaning validation was performed to validate the cleaning process for the entire external surface of the device.
12. Software information:
Software verification and validation testing were conducted and supported by documentation according to the FDA's Guidance for Industry and FDA Staff "Guidance for the Content of Premarket Submissions for Software Contained in Medical Devices. Based on FDA Software level of concern, the subject device is classified as "Minor" level of software concern.
The details about the software were clearly demonstrated in the software documentation and the risks related to the software products were mitigated
13. Risk Analysis
The proposed subject Plasma Shield Device complies with the ISO 14971: 2019 Medical devices - Application of risk management to medical devices" test standard. The testing ensures that the proposed subject device "Plasma Shield" meets the appropriate safety and effectiveness requirements.
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14. Discussion of Non-Clinical Tests Performed for Determination of Substantial Equivalence are as follows:
Testing information demonstrating safety and effectiveness of the proposed subject Plasma Shield Device in the intended environment of use is supported by testing that was conducted in accordance with the FDA November 1993 Draft "Reviewer Guidance for Premarket Notification Submissions", DCRND, which outlines Electrical, Mechanical and Environmental Performance requirements.
- IEC 62133-2 Edition1.0 2017-02 Secondary cells and batteries containing alkaline or . other non-acid electrolytes – Safety requirements for portable sealed secondary cells. and for batteries made from them, for use in portable applications – Part 2: Lithium systems
- ISO 11607-1: 2019 Packaging for terminally sterilized medical devices Part 1: . Requirements for materials, sterile barrier systems and packaging systems
- ISO 11607-2:2019 Packaging for terminally sterilized medical devices Part 2: ● Validation requirements for forming, sealing and assembly processes
- . ASTM F1980-16 Standard Guide for Accelerated Aging of Sterile Barrier Systems for Medical Devices
- . ASTM F1886/F1886M - 2016 - Standard Test Method for Determining Integrity of Seals for Flexible Packaging by Visual Inspection
- . FR Number 14-482 06/27/2016 ASTM F88/F88M-15- Standard Test Method for Seal Strength of Flexible Barrier Materials
- . ASTM F1140/ F1140M-13 (2020) Standard Test Methods for Packages Internal Pressurization Failure Resistance of Unrestrained
- ASTM F1929-15 - Standard Test Method for Detecting Seal Leaks in Porous Medical Packaging by Dye Penetration
- ASTM F3039-15 Standard Methods in Nonporous Packaging or Flexible Barrier ● materials by Dye Penetration
- ASTM D4169-16 Standard Practice for Performance Testing of Shipping Containers ● and Systems. Sections 14, 15 NOT APPLICABLE
- . ASTM D4332-14 Standard Practice for Conditioning Containers, Packages, or Packaging Components for Testing
- ISO 10993-1:2018 Biological evaluation of medical devices Part 1: Evaluation and . testing within a risk management process **Additional compliance to US-FDA Guidance Use of International Standard ISO 10993-1, "Biological evaluation of medical devices – Part 1: Evaluation and testing within a risk management process" of 4th September 2020.
- . ISO 15223-1: 2016 Medical devices - Symbols to be used with medical device labels, labelling, and information to be supplied - Part 1: General requirements
- AAMI TIR12:2020 Designing, testing, and labeling reusable medical devices for . reprocessing in health care facilities: A guide for medical device manufacturers
- . AAMI TIR30:2011/(R)2016 A compendium of processes, materials, test methods, and acceptance criteria for cleaning reusable medical devices
None of the testing demonstrated any design characteristics that violated the requirements of the Reviewer Guidance or resulted in any safety hazards. It was our conclusion that the proposed subject Plasma Shield Device tested met all relevant requirements of the aforementioned tests.
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Conclusions:
The design, characteristics, and performance of the proposed subject Plasma Shield device substantiates that the device is working as intended (use prior to and during endoscopic and laparoscopic procedures to prevent the fogging of the scope lens).
The proposed subject Plasma Shield Device is substantially equivalent to both its primary predicate device and the reference predicate device.
§ 876.1500 Endoscope and accessories.
(a)
Identification. An endoscope and accessories is a device used to provide access, illumination, and allow observation or manipulation of body cavities, hollow organs, and canals. The device consists of various rigid or flexible instruments that are inserted into body spaces and may include an optical system for conveying an image to the user's eye and their accessories may assist in gaining access or increase the versatility and augment the capabilities of the devices. Examples of devices that are within this generic type of device include cleaning accessories for endoscopes, photographic accessories for endoscopes, nonpowered anoscopes, binolcular attachments for endoscopes, pocket battery boxes, flexible or rigid choledochoscopes, colonoscopes, diagnostic cystoscopes, cystourethroscopes, enteroscopes, esophagogastroduodenoscopes, rigid esophagoscopes, fiberoptic illuminators for endoscopes, incandescent endoscope lamps, biliary pancreatoscopes, proctoscopes, resectoscopes, nephroscopes, sigmoidoscopes, ureteroscopes, urethroscopes, endomagnetic retrievers, cytology brushes for endoscopes, and lubricating jelly for transurethral surgical instruments. This section does not apply to endoscopes that have specialized uses in other medical specialty areas and that are covered by classification regulations in other parts of the device classification regulations.(b)
Classification —(1)Class II (special controls). The device, when it is an endoscope disinfectant basin, which consists solely of a container that holds disinfectant and endoscopes and accessories; an endoscopic magnetic retriever intended for single use; sterile scissors for cystoscope intended for single use; a disposable, non-powered endoscopic grasping/cutting instrument intended for single use; a diagnostic incandescent light source; a fiberoptic photographic light source; a routine fiberoptic light source; an endoscopic sponge carrier; a xenon arc endoscope light source; an endoscope transformer; an LED light source; or a gastroenterology-urology endoscopic guidewire, is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 876.9.(2) Class I for the photographic accessories for endoscope, miscellaneous bulb adapter for endoscope, binocular attachment for endoscope, eyepiece attachment for prescription lens, teaching attachment, inflation bulb, measuring device for panendoscope, photographic equipment for physiologic function monitor, special lens instrument for endoscope, smoke removal tube, rechargeable battery box, pocket battery box, bite block for endoscope, and cleaning brush for endoscope. The devices subject to this paragraph (b)(2) are exempt from the premarket notification procedures in subpart E of part 807of this chapter, subject to the limitations in § 876.9.