K Number
K191368
Device Name
FlowTriever Retrieval/Aspiration System
Manufacturer
Date Cleared
2019-06-17

(26 days)

Product Code
Regulation Number
870.5150
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP Authorized
Intended Use
The FlowTriever Retrieval/Aspiration System is indicated for: · The non-surgical removal of emboli and thrombi from blood vessels. - · Injection, infusion, and/or aspiration of contrast media and other fluids into or from a blood vessel. The FlowTriever Retrieval/Aspiration System is intended for use in the peripheral vasculature and for the treatment of pulmonary embolism.
Device Description
The FlowTriever Retrieval/Aspiration System is a single-use over-the-wire catheter-based system for the minimally invasive treatment of thromboemboli in the peripheral vasculature and for the treatment of pulmonary embolism. The system is comprised of two main components packaged separately: • Triever Catheters (available in 2 sizes: 16 Fr and 20 Fr) • FlowTriever Catheters (available in 4 sizes: 6-10 mm, 11-14 mm, 15-18 mm, and 19-25 mm) The FlowTriever Catheter is inserted through the Triever Catheter and advanced to the thrombus. Self-expanding wireform disks are deployed to engage thrombus by retracting the outer delivery catheter. The FlowTriever Catheter is retracted into the Triever Catheter to capture the targeted thrombus. Additional clot may also be removed by aspiration with the provided 60 cc VacLok Vacuum syringe. After the procedure is complete, the Triever Catheter and FlowTriever Catheter are removed from the patient.
More Information

No
The description focuses on the mechanical components and operation of a catheter-based system for thrombus removal. There is no mention of AI, ML, image processing, or any computational analysis of data for diagnosis, treatment planning, or device control.

Yes
The device is designed to treat medical conditions by non-surgically removing emboli and thrombi from blood vessels through aspiration, which directly impacts the patient's health.

No

The device is intended for the non-surgical removal of emboli and thrombi and for the injection/infusion/aspiration of fluids, which are therapeutic interventions, not diagnostic ones.

No

The device description clearly outlines physical, catheter-based components (Triever Catheters, FlowTriever Catheters, VacLok Vacuum syringe) used for mechanical removal of thrombi, indicating it is a hardware-based medical device.

Based on the provided information, this device is not an IVD (In Vitro Diagnostic).

Here's why:

  • IVD Definition: In vitro diagnostics are tests performed on samples taken from the human body, such as blood, urine, or tissue, to detect diseases, conditions, or infections. They are used outside of the body.
  • Device Description: The FlowTriever Retrieval/Aspiration System is a catheter-based system used within the body (in the peripheral vasculature and for pulmonary embolism) to physically remove emboli and thrombi. It also facilitates the injection/aspiration of fluids into or from a blood vessel.
  • Intended Use: The intended use clearly describes a therapeutic procedure performed inside the patient's body, not a diagnostic test performed on a sample outside the body.

Therefore, the FlowTriever Retrieval/Aspiration System is a therapeutic medical device, not an in vitro diagnostic device.

N/A

Intended Use / Indications for Use

The FlowTriever Retrieval/Aspiration System is indicated for:

  • The non-surgical removal of emboli and thrombi from blood vessels.
  • Injection, infusion, and/or aspiration of contrast media and other fluids into or from a blood vessel.
    The FlowTriever Retrieval/Aspiration System is intended for use in the peripheral vasculature and for the treatment of pulmonary embolism.

Product codes

QEW

Device Description

The FlowTriever Retrieval/Aspiration System is a single-use over-the-wire catheter-based system for the minimally invasive treatment of thromboemboli in the peripheral vasculature and for the treatment of pulmonary embolism. The system is comprised of two main components packaged separately:

  • Triever Catheters (available in 2 sizes: 16 Fr and 20 Fr)
  • FlowTriever Catheters (available in 4 sizes: 6-10 mm, 11-14 mm, 15-18 mm, and 19-25 mm)
    The FlowTriever Catheter is inserted through the Triever Catheter and advanced to the thrombus. Self-expanding wireform disks are deployed to engage thrombus by retracting the outer delivery catheter. The FlowTriever Catheter is retracted into the Triever Catheter to capture the targeted thrombus. Additional clot may also be removed by aspiration with the provided 60 cc VacLok Vacuum syringe. After the procedure is complete, the Triever Catheter and FlowTriever Catheter are removed from the patient.

Mentions image processing

Not Found

Mentions AI, DNN, or ML

Not Found

Input Imaging Modality

Not Found

Anatomical Site

Peripheral vasculature and for the treatment of pulmonary embolism.

Indicated Patient Age Range

Not Found

Intended User / Care Setting

Not Found

Description of the training set, sample size, data source, and annotation protocol

Not Found

Description of the test set, sample size, data source, and annotation protocol

Design verification for inclusion of the Large Bore 60 cc Syringe with the Triever16 was limited to packaging evaluation after simulated shipping.

Summary of Performance Studies (study type, sample size, AUC, MRMC, standalone performance, key results)

Non-Clinical Testing:
No modifications have been made to the previously cleared Triever16 nor the Large Bore 60 cc Syringe. Design verification for inclusion of the Large Bore 60 cc Syringe with the Triever16 was limited to packaging evaluation after simulated shipping. The risk category, determined during the risk analysis process, was used to assign confidence/reliability percentages in the determination of sample size for design verification testing.
Accelerated 2-year shelf-life testing for Triever16 and Triever204 were leveraged to support a 2-year shelf-life for the Triever16.
Clinical testing was not required for the determination of substantial equivalence.
Test results demonstrated that all acceptance criteria were met; therefore, the device conforms to established product specifications.

Key Metrics (Sensitivity, Specificity, PPV, NPV, etc.)

Not Found

Predicate Device(s)

K183198

Reference Device(s)

K182233

Predetermined Change Control Plan (PCCP) - All Relevant Information

Not Found

§ 870.5150 Embolectomy catheter.

(a)
Identification. An embolectomy catheter is a balloon-tipped catheter that is used to remove thromboemboli, i.e., blood clots which have migrated in blood vessels from one site in the vascular tree to another.(b)
Classification. Class II (performance standards).

0

Image /page/0/Picture/0 description: The image shows the logo of the U.S. Food and 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.

June 17, 2019

Inari Medical Eben Gordon Vice President, RA/QA 9272 Jeronimo Rd., Suite 124 Irvine, CA 92618

Re: K191368

Trade/Device Name: FlowTriever Retrieval/Aspiration System Regulation Number: 21 CFR 870.5150 Regulation Name: Embolectomy Catheter Regulatory Class: Class II Product Code: QEW Dated: May 21, 2019 Received: May 22, 2019

Dear Mr. Gordon:

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

1

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 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 (OS) 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,

Gregory O'Connell Assistant Director DHT2C: Division of Coronary and Peripheral Intervention Devices OHT2: Office of Cardiovascular Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health

Enclosure

2

Indications for Use

510(k) Number (if known) K191368

Device Name

FlowTriever Retrieval/Aspiration System

Indications for Use (Describe) The FlowTriever Retrieval/Aspiration System is indicated for:

· The non-surgical removal of emboli and thrombi from blood vessels.

  • · Injection, infusion, and/or aspiration of contrast media and other fluids into or from a blood vessel.
    The FlowTriever Retrieval/Aspiration System is intended for use in the peripheral vasculature and for the treatment of pulmonary embolism.

Type of Use (Select one or both, as applicable)

X Prescription Use (Part 21 CFR 801 Subpart D)

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

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K191368

PAGE 1 OF 2

510(K) SUMMARY - Special 510(k)

Date preparedMay 21, 2019
NameInari Medical, Inc.
9272 Jeronimo Road, Suite 124
Irvine, CA 92618
949.600.8433 x114
Contact personEben Gordon
Vice President, Regulatory Affairs & Quality Assurance
Trade nameFlowTriever Retrieval/Aspiration System
Common nameEmbolectomy catheter
Regulation nameEmbolectomy catheter
Classification number21 CFR 870.5150
Product codeQEW
Regulatory classII
Predicate deviceInari FlowTriever Retrieval/Aspiration System (K183198)
Reference deviceInari FlowTriever Retrieval/Aspiration System (K182233)
DescriptionThe FlowTriever Retrieval/Aspiration System is a single-use over-the-wire
catheter-based system for the minimally invasive treatment of thromboemboli in
the peripheral vasculature and for the treatment of pulmonary embolism. The
system is comprised of two main components packaged separately:
• Triever Catheters (available in 2 sizes: 16 Fr and 20 Fr)
• FlowTriever Catheters (available in 4 sizes: 6-10 mm, 11-14 mm, 15-18
mm, and 19-25 mm)
The FlowTriever Catheter is inserted through the Triever Catheter and advanced
to the thrombus. Self-expanding wireform disks are deployed to engage thrombus
by retracting the outer delivery catheter. The FlowTriever Catheter is retracted
into the Triever Catheter to capture the targeted thrombus. Additional clot may
also be removed by aspiration with the provided 60 cc VacLok Vacuum syringe.
After the procedure is complete, the Triever Catheter and FlowTriever Catheter
are removed from the patient.
Indications for UseThe FlowTriever Retrieval/Aspiration System is indicated for:
The non-surgical removal of emboli and thrombi from blood vessels. Injection, infusion, and/or aspiration of contrast media and other fluids into or from a blood vessel. The FlowTriever Retrieval/Aspiration System is intended for use in the peripheral vasculature and for the treatment of pulmonary embolism.
Device modificationsThe device modification proposed is providing the Large Bore 60 cc Syringe in the sterile package of the Triever163. The same syringe is already provided in the Triever20 (cleared under K182233) used for the same aspiration purpose.
Summary of substantial equivalenceThere is no change of intended use or fundamental scientific technology between the proposed and predicate device. The FlowTriever Retrieval/Aspiration System has the same indication for use as the predicate, K183198.

Non-Clinical Testing
No modifications have been made to the previously cleared Triever16 nor the Large Bore 60 cc Syringe. Design verification for inclusion of the Large Bore 60 cc Syringe with the Triever16 was limited to packaging evaluation after simulated shipping. The risk category, determined during the risk analysis process, was used to assign confidence/reliability percentages in the determination of sample size for design verification testing

Accelerated 2-year shelf-life testing for Triever16 and Triever204 were leveraged to support a 2-year shelf-life for the Triever16.

Clinical testing was not required for the determination of substantial equivalence.

Test results demonstrated that all acceptance criteria were met; therefore, the device conforms to established product specifications.

Conclusion
The proposed device modifications to the FlowTriever Retrieval/Aspiration System do not change its intended use nor does it change the principles of operation. With consideration of the results of the testing leveraged from K183198, it can be concluded that the proposed FlowTriever Retrieval/Aspiration System is substantially equivalent to the predicate device. |

4

K191368

3 Formerly "16 Fr Aspiration Guide Catheter"

4 Formerly "20 Fr Aspiration Guide Catheter