AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (LAA0); AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (ACH1); AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (ACH2); AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (PRO1); AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (PRO2); AtriClip PRO-V LAA Exclusion System (PROV); AtriClip Flex-V LAA Exclusion System with preloaded V Clip (ACHV)

Q: Who is the manufacturer of AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (LAA0); AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (ACH1); AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (ACH2); AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (PRO1); AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (PRO2); AtriClip PRO-V LAA Exclusion System (PROV); AtriClip Flex-V LAA Exclusion System with preloaded V Clip (ACHV)?

AtriCure, Inc. filed the 510(k) submission for AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (LAA0); AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (ACH1); AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (ACH2); AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (PRO1); AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (PRO2); AtriClip PRO-V LAA Exclusion System (PROV); AtriClip Flex-V LAA Exclusion System with preloaded V Clip (ACHV) (K233407).

Q: What is the FDA product code for AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (LAA0); AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (ACH1); AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (ACH2); AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (PRO1); AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (PRO2); AtriClip PRO-V LAA Exclusion System (PROV); AtriClip Flex-V LAA Exclusion System with preloaded V Clip (ACHV)?

PZX. It is classified under 21 CFR 878.4300 as a Class 2 device in the General, Plastic Surgery panel.

Q: What is the regulatory pathway for AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (LAA0); AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (ACH1); AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (ACH2); AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (PRO1); AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (PRO2); AtriClip PRO-V LAA Exclusion System (PROV); AtriClip Flex-V LAA Exclusion System with preloaded V Clip (ACHV)?

510(k) clearance (submission type: Special).

Q: What are the predicate devices for AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (LAA0); AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (ACH1); AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (ACH2); AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (PRO1); AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (PRO2); AtriClip PRO-V LAA Exclusion System (PROV); AtriClip Flex-V LAA Exclusion System with preloaded V Clip (ACHV)?

AtriClip LAA Exclusion System (K210293).

Q: Who can help prepare an FDA 510(k) submission like AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (LAA0); AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (ACH1); AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (ACH2); AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (PRO1); AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (PRO2); AtriClip PRO-V LAA Exclusion System (PROV); AtriClip Flex-V LAA Exclusion System with preloaded V Clip (ACHV)?

Innolitics — a medical-device software consultancy — provides regulatory and engineering support for FDA 510(k) submissions. See https://innolitics.com/services/510ks/ or contact https://innolitics.com/contact.

K233407 · AtriCure, Inc. · PZX · Nov 2, 2023 · General, Plastic Surgery

Device Facts

Record ID	K233407
Device Name	AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (LAA0); AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (ACH1); AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (ACH2); AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (PRO1); AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip (PRO2); AtriClip PRO-V LAA Exclusion System (PROV); AtriClip Flex-V LAA Exclusion System with preloaded V Clip (ACHV)
Applicant	AtriCure, Inc.
Product Code	PZX · General, Plastic Surgery
Decision Date	Nov 2, 2023
Decision	SESE
Submission Type	Special
Regulation	21 CFR 878.4300
Device Class	Class 2
Attributes	Therapeutic

Intended Use

The AtriClip LAA Exclusion System is indicated for the exclusion of the heart's left atrial appendage, performed under direct visualization and in conjunction with other cardiac surgical procedures. Direct visualization, in this context, requires that the surgeon is able to see the heart directly, with or without assistance from a camera, endoscope, etc., or other appropriate viewing technologies.

Device Story

The AtriClip LAA Exclusion System is a single-use, sterile, implantable clip preloaded on a manual clip applier. Used by surgeons during cardiac procedures, the device is deployed under direct visualization to mechanically exclude the left atrial appendage (LAA). The clip applies uniform pressure to the LAA, resulting in permanent exclusion and electrical isolation. The system includes a selection guide to assist in choosing the appropriate clip size (35-50 mm). The device is purely mechanical; it does not involve electronic processing, software, or automated decision-making. It benefits patients by providing a secure, reproducible method for LAA exclusion, which is intended to reduce the risk of thromboembolic events associated with the LAA.

Clinical Evidence

No new clinical data was provided. The submission relies on previously cleared bench and animal data (Kamohara 2005, 2006; Starck 2012) which demonstrated acute and chronic electrical isolation of the LAA in animal models and acute isolation in human clinical studies.

Technological Characteristics

Implantable clip and manual applier. Materials assessed per ISO 10993. Clip material: Nitinol (nickel-titanium alloy). Suture material: Polyethylene Terephthalate. Sterilization: Gamma irradiation (10^-6 SAL). Non-pyrogenic. No software, electronics, or energy source.

Indications for Use

Indicated for exclusion of the heart's left atrial appendage in patients undergoing cardiac surgical procedures requiring direct visualization. Contraindicated for use as a contraceptive tubal occlusion device, in patients with known Nitinol (nickel-titanium alloy) allergy, or in the presence of systemic infection, bacterial endocarditis, or infected operating field.

Regulatory Classification

Identification

An implantable clip is a clip-like device intended to connect internal tissues to aid healing. It is not absorbable.

Predicate Devices

AtriClip LAA Exclusion System (K210293)

Related Devices

K243860 — AtriClip PRO-Mini LAA Exclusion System (PROM) · AtriCure, Inc. · Jan 15, 2025
K173031 — AtriClip LAA Exclusion System with Preloaded PRO·V Clip · AtriCure, Inc. · Oct 25, 2017
K160454 — AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip · AtriCure, Inc. · Mar 18, 2016
K210293 — AtriClip LAA Exclusion System · AtriCure, Inc. · Mar 3, 2021
K153500 — AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove PRO V Clip · AtriCure, Inc. · Jan 27, 2016

Submission Summary (Full Text)

{0}------------------------------------------------ Image /page/0/Picture/0 description: The image contains the logo of the U.S. Food & Drug Administration (FDA). On the left is the Department of Health & Human Services logo. To the right of that is the FDA logo, which is a blue square with the letters "FDA" in white. To the right of the blue square is the text "U.S. FOOD & DRUG ADMINISTRATION" in blue. November 2, 2023 AtriCure, Inc. Stephanie Hadnot Senior Regulatory Affairs Specialist 7555 Innovation Wav Mason, Ohio 45040 ## Re: K233407 Trade/Device Name: AtriClip® LAA Exclusion System with Preloaded Gillinov-Cosgrove® Clip (LAA0, ACH1, ACH2, PRO1, and PRO2) AtriClip® PRO-V® LAA Exclusion System (PROV) AtriClip® Flex-V® LAA Exclusion System with Preloaded V Clip™ (ACHV) Regulation Number: 21 CFR 878.4300 Regulation Name: Implantable Clip Regulatory Class: Class II Product Code: PZX Dated: September 29, 2023 Received: October 5, 2023 Dear Stephanie Hadnot: 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. {1}------------------------------------------------ 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 (OS) 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 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-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 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. 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-device-safety/medical-device-reportingmdr-how-report-medical-device-problems. For comprehensive regulatory information about medical devices and radiation-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, Katherine N. Trivedi -2 for Rachel Neubrander Assistant Director {2}------------------------------------------------ DHT2B: Division of Circulatory Support, Structural and Vascular Devices OHT2: Office of Cardiovascular Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health Enclosure {3}------------------------------------------------ # Indications for Use 510(k) Number (if known) K233407 Device Name AtriClip® LAA Exclusion System with Preloaded Gillinov-Cosgrove® Clip (LAA0, ACH1, ACH2, PRO1, and PRO2) AtriClip® PRO-V® LAA Exclusion System (PROV) AtriClip® Flex-V® LAA Exclusion System with Preloaded V Clip™ (ACHV) ### Indications for Use (Describe) The AtriClip LAA Exclusion System is indicated for the exclusion of the heart's left atrial appendage, performed under direct visualization and in conjunction with other cardiac surgical procedures. Direct visualization, in this context, requires that the surgeon is able to see the heart directly, with or without assistance from a camera, endoscope, etc., or other appropriate viewing technologies. 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}------------------------------------------------ #### l. Applicant Information | Manufacturer: | AtriCure, Inc. 7555 Innovation Way Mason, Ohio 45040 | |--------------------|-----------------------------------------------------------------------------| | Contact Person: | Stephanie Hadnot Senior Regulatory Affairs Specialist P: 513-341-0345 | | Alternate Contact: | Jim Taufen Director, Regulatory Affairs P: 952-314-1507 | | Date Prepared: | 09/29/2023 | #### ll. Device Information | Proprietary Name: | AtriClip® LAA Exclusion System with Preloaded Gillinov- Cosgrove® Clip (LAA0, ACH1, ACH2, PRO1, and PRO2) AtriClip® PRO-V® LAA Exclusion System (PROV) AtriClip® Flex-V® LAA Exclusion System with Preloaded V Clip™ (ACHV) | |-------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | Common Name: | Implantable Clip and Clip Applier | | Classification: | Implantable Clip and Clip Applier Regulatory Class: Class II; per 21 CFR 878.4300 Product Code: PZX Classification Panel: Cardiovascular | | Predicate Device: | The device proposed for modification in this submission is the AtriClip LAA Exclusion System cleared via K210293 on March 3, 2021. | #### lll. Device Description The AtriClip LAA Exclusion System consists of a single use, sterile, self-closing, implantable Clip preloaded on a Single Use Clip Applier along with a selection quide. When closed, the Clip applies uniform pressure over the length of the Clip to ensure consistent, reproducible, and secure exclusion of the left atrial appendage (LAA). The Clip is then deployed and is left as a permanent implant and excludes the LAA resulting in electrical isolation of the LAA. Preclinical animal studies (Kamohara 2005,2006) demonstrate that complete exclusion with the Clip also results in acute and chronic electrical isolation of the LAA. A human clinical study (Starck 2012) has demonstrated acute electrical isolation. Chronic electrical isolation has not been evaluated in human clinical {5}------------------------------------------------ studies. The Clip is available in the following lengths to accommodate difference sizes of LAA: 35 mm, 40 mm, 45 mm, and 50 mm. The Clip Appliers are disposable devices with a handle, shaft, suture anchors, articulation controls, and deployment loop/jaws which contain the Clip. ### Intended Use/ Indications for Use The AtriClip LAA Exclusion System is indicated for the exclusion of the heart's left atrial appendage, performed under direct visualization and in conjunction with other cardiac surgical procedures. Direct visualization, in this context, requires that the surgeon is able to see the heart directly, with or without assistance from a camera, endoscope, etc., or other appropriate viewing technologies. The indications for use are identical to the predicate device. ### IV. Comparison of Technological Characteristics with the Predicate Device (AtriClip LAA Exclusion System - K210293) | # | Feature | Predicate (K210293) AtriClip™ LAA Exclusion System | Modified AtriClip™ LAA Exclusion System | Equivalence Comparison | |------|---------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------| | 1 | Proprietary Name | AOD1: AtriClip™ LAA Exclusion System with Preloaded Gillinov-Cosgrove Clip | AOD1: AtriClip™ LAA Exclusion System with Preloaded Gillinov-Cosgrove Clip | Same | | | | AOD2: AtriClip™ LAA Exclusion System with Preloaded V Clip | AOD2: AtriClip™ LAA Exclusion System with Preloaded V Clip | | | 2 | Clip Applier Product Code(s) | LAA035, LAA040, LAA045, LAA050 ACH135, ACH140, ACH145, ACH150 ACH235, ACH240, ACH245, ACH250 PRO135, PRO140, PRO145, PRO150 PRO235, PRO240, PRO245, PRO250 PROV35, PROV40, PROV45, PROV50 ACHV35, ACHV40, ACHV45, ACHV50 | LAA035, LAA040, LAA045, LAA050 ACH135, ACH140, ACH145, ACH150 ACH235, ACH240, ACH245, ACH250 PRO135, PRO140, PRO145, PRO150 PRO235, PRO240, PRO245, PRO250 PROV35, PROV40, PROV45, PROV50 ACHV35, ACHV40, ACHV45, ACHV50 | Same | | 3 | Selection Guide Product Code | CGG100 | CGG100 | Same | | 4 | Device Classification | 21 CFR 878.4300, product code: PZX | 21 CFR 878.4300, product code: PZX | Same | | 5 | Regulatory Class | Class II | Class II | Same | | 6 | FDA Division | Cardiovascular | Cardiovascular | Same | | 7 | Performance Standards | No performance standards applicable to this product have been promulgated by FDA | No performance standards applicable to this product have been promulgated by FDA | Same | | 8 | Intended Use | The AtriClip™ LAA Exclusion System is indicated for the exclusion of the heart's left atrial appendage, performed under direct visualization and in conjunction with other cardiac surgical procedures. Direct visualization, in this context, requires that the surgeon is able to see | The AtriClip™ LAA Exclusion System is indicated for the exclusion of the heart's left atrial appendage, performed under direct visualization and in conjunction with other cardiac surgical procedures. Direct visualization, in this context, requires that the surgeon is able to see | Same | | # | Feature | Predicate (K210293) AtriClipTM LAA Exclusion System | Modified AtriClipTM LAA Exclusion System | Equivalence Comparison | | | | the heart directly, with or without assistance from a camera, endoscope, etc., or other appropriate viewing technologies. | the heart directly, with or without assistance from a camera, endoscope, etc., or other appropriate viewing technologies. | | | 9 | Contraindications | LAA0, ACH1, ACH2, PRO1, PRO2: 1. Do not use this device as a contraceptive tubal occlusion device. 2. Do not use this device if the patient has a known allergy to Nitinol (nickel titanium alloy). PROV, ACHV: 1. Do not use this device as a contraceptive tubal occlusion device. | LAA0, ACH1, ACH2, PRO1, PRO2: 1. Do not use this device as a contraceptive tubal occlusion device. 2. Do not use this device if the patient has a known allergy to Nitinol (nickel titanium alloy). 3. Do not use this device if evidence of systemic infection, bacterial endocarditis, or in presence of infected operating field. PROV, ACHV: 1. Do not use this device as a contraceptive tubal occlusion device. 2. Do not use this device if evidence of systemic infection, bacterial endocarditis, or in presence of infected operating field. | Similar - Contraindication added to emphasize standard surgical practice and possible limited use of devices. | | 10 | Software | This product does not contain software. | This product does not contain software. | Same | | 11 | Shelf Life | 3 years | 3 years | Same | | 12 | Biocompatibility | Passed. Materials have been assessed based on ISO 10993 and are commonly employed in tissue contacting devices. | Passed. Materials have been assessed based on ISO 10993 and are commonly employed in tissue contacting devices. | Same | | 13 | Sterilization | Gamma Irradiation | Gamma Irradiation | Same | | 14 | Sterility Assurance Level | 10-6 SAL | 10-6 SAL | Same | | 15 | Pyrogen | Non-Pyrogenic | Non-Pyrogenic | Same | | Clip | | | | | | 16 | Suture Material | Polyethylene Terephthalate | Polyethylene Terephthalate | Same | | 17 | Preloaded Clip | AOD1: Preloaded Gillinov-Cosgrove Clip AOD2: Preloaded V Clip | AOD1: Preloaded Gillinov-Cosgrove Clip AOD2: Preloaded V Clip | Same | | 18 | Clip Opening | AOD1: Opens 12.5mm ± 1.5mm as measured between the beams of the AOD1 clip. AOD2: Opens AOD2 Clip to a minimum of 12mm at the distal end and 4mm at the proximal end of the clip. | AOD1: Opens 12.5mm ± 1.5mm as measured between the beams of the AOD1 clip. AOD2: Opens AOD2 Clip to a minimum of 12mm at the distal end and 4mm at the proximal end of the clip. | Same | | 19 | Biocompatibility | Passed. Materials have been assessed based on ISO 10993 and are commonly employed in tissue contacting devices. | Passed. Materials have been assessed based on ISO 10993 and are commonly employed in tissue contacting devices. | Same | | 20 | Sterilization | Gamma Irradiation | Gamma Irradiation | Same | {6}------------------------------------------------ - The devices have the same intended use. . - No changes were made in operating principle. . - No changes to the overall design or function of the devices. . {7}------------------------------------------------ ## Performance Data A review of the risk analysis concluded there is no overall change to the risk profile of the proposed AtriClip LAA Exclusion System versus the previously cleared AtriClip LAA Exclusion System as the modifications to the proposed AtriClip LAA Exclusion System do not add or remove any features of the device or change the clinical application. The proposed changes do not include any change to design or performance specifications of the AtriClip LAA Exclusion System. Additionally, the proposed changes did not modify the intended use, therefore the previously submitted bench and animal data remain valid for the AtriClip LAA Exclusion System. #### V. Conclusions AtriCure has demonstrated that the modifications made to the AtriClip LAA Exclusion System are substantially equivalent in fundamental design, technology, function, device materials, packaging, sterilization, operating principle, and intended use / indication for use as the previously cleared AtriClip LAA Exclusion System per K210293.