The ARROW FlexBlock Continuous Peripheral Nerve Block kit/set permits placement of catheters next to nerves and nerve plexuses for continuous nerve block anesthesia or analgesia techniques including upper extremity, lower extremity, abdominal and paravertebral locations for periods not exceeding 72 Hours.

The catheter is designed to deliver anesthesia to manage perioperative pain and /or alleviate postoperative analgesia.

Device Description

The ARROW FlexBlock Continuous Peripheral Nerve Block Catheter has the following characteristics:

19 Ga., 30 to 90 cm with at minimum one flashback window to visualize fluids inside . catheter
. Offered in open and closed tip configurations
Internal radiopaque, echogenic coiled reinforced wire to visualize under Ultrasound .
Catheters are provided in sterile kit/set configurations or as a standalone replacement . catheter .

AI/ML Overview

In this 510(k) summary for the ARROW FlexBlock Continuous Peripheral Nerve Block Catheter (K122027), the document describes a medical device, its intended use, and its substantial equivalence to predicate devices based on nonclinical testing. However, the provided text does not contain information about acceptance criteria or a study that specifically proves the device meets such criteria in terms of clinical performance or a comparative effectiveness study involving human readers or AI.

The submission focuses on bench testing and biocompatibility. Here's a breakdown of the requested information based on the provided text, highlighting what is present and what is absent:

1. Table of Acceptance Criteria and Reported Device Performance

Acceptance Criteria	Reported Device Performance
Not explicit in document	Demonstrates comparable tensile strength, column strength, and flow rate to predicate devices. (Nonclinical Testing section)
Not explicit in document	No adverse effects observed in in vivo studies conducted with catheter extracts. (Nonclinical Testing section)
Not explicit in document	Meets requirements of applicable ISO 10993 Guidelines for patient contacting components. (Nonclinical Testing section)
Not explicit in document	No significant risk of acute toxicity from relevant leachable chemicals under proposed conditions and duration of clinical use. (Nonclinical Testing section)
Not explicit in document	Comparable extractable and leachable (E&L) profiles for one-cycle vs. two-cycle EO sterilized devices. (Nonclinical Testing section)

Comment: The document states that the "results of the performance testing, i.e. tensile strength, column strength and flow rate, demonstrate that the FlexBlock Continuous Peripheral Nerve Block Catheter is as safe, as effective and performs comparably to the primary predicate (K 103658) and referenced predicate (K121403)." However, specific numerical acceptance criteria (e.g., "tensile strength must be > X N") and their corresponding measured values are not provided. The general acceptance criterion appears to be "comparable to predicate devices" for physical characteristics and "safe and effective" for biocompatibility and material properties.

2. Sample Size Used for the Test Set and the Data Provenance

This information is not available in the provided 510(k) summary. The document describes "nonclinical testing" and "pre-clinical evaluations" but does not detail a "test set" in the context of clinical or diagnostic performance evaluation with human subjects or a dataset for an AI algorithm. The testing described focuses on bench and in vitro (extractables and leachables) studies.

3. Number of Experts Used to Establish the Ground Truth for the Test Set and Their Qualifications

This information is not applicable and not available in the provided 510(k) summary. The submission focuses on device characteristics and substantial equivalence based on engineering and biocompatibility testing, not on a diagnostic or interpretive task that would require expert-established ground truth.

4. Adjudication Method for the Test Set

This information is not applicable and not available in the provided 510(k) summary for the same reasons as point 3.

5. If a Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study Was Done

No. A Multi-Reader Multi-Case (MRMC) comparative effectiveness study was not done or described in this 510(k) summary. Such studies are typically relevant for diagnostic imaging devices or AI-powered tools where human interpretation is involved. This device is a catheter for anesthesia delivery.

6. If a Standalone (i.e., algorithm only without human-in-the-loop performance) Was Done

No. This question is not applicable as the device is a medical catheter, not an AI algorithm or a device that performs diagnostic interpretation independently.

7. The Type of Ground Truth Used

This information is not applicable in the context of a diagnostic or interpretive device. For the nonclinical testing described (tensile strength, flow rate, biocompatibility), the "ground truth" would be established by standardized measurement techniques and established safety limits for materials.

8. The Sample Size for the Training Set

This information is not applicable and not available as this device does not involve a training set for an AI algorithm.

9. How the Ground Truth for the Training Set Was Established

This information is not applicable and not available as this device does not involve a training set for an AI algorithm.

Summary of Findings from the Document:

The K122027 submission for the ARROW FlexBlock Continuous Peripheral Nerve Block Catheter is a declaration of substantial equivalence based primarily on:

Same Intended Use: To deliver anesthesia for continuous nerve blocks, comparable to predicate devices.
Technological Characteristics: Similar materials (internal radiopaque, echogenic coiled reinforced wire), configurations (open/closed tip), and dimensions to predicate devices.
Nonclinical Testing: Bench testing for physical properties (tensile strength, column strength, flow rate) demonstrating performance comparable to predicates.
Biocompatibility: In vivo studies and extractable/leachable (E&L) studies demonstrating the safety of materials and compatibility with common anesthetic drugs, meeting ISO 10993 guidelines.

The document does not describe any clinical trials on human patience to demonstrate safety and effectiveness for a medical device that received 510(k) clearance. Instead, these are assessed through substantial equivalence to existing legally marketed predicate devices, supported by non-clinical (bench and in vitro) testing.

Summary

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K122027

510(k) SUMMARY

AUG 28 2012

Submitter Information

Name:	Arrow International, Inc. (subsidiary of Teleflex Inc.)
Address:	2400 Bernville RoadReading, PA 19605-9607
Telephone Number:	(610) 378-0131
Contact Person:	Paul AmudalaRegulatory Affairs Specialist
Telephone Number:	(610) 378-0131 Extension 603591
Fax Number:	(610) 478-3179
Email:	paul.amudala@teleflex.com
Date Prepared:	Aug 22, 2012

Device Name

	Device Trade Name: ARROW FlexBlock Continuous Peripheral Nerve Block Catheter
Common Name:	Peripheral Nerve Block Catheter
Classification Name:	Anesthesia Conduction Kit, CAZ, 21 CFR 868.5140; Anesthesia Conduction Catheter, BSO, 868.5120

Predicate Device

The primary predicate device is Arrow's FlexTip Plus Closed Tip Epidural (K103658). The Continuous Peripheral Nerve Block Catheter (K121403) is the reference predicate.

Device Description

The ARROW FlexBlock Continuous Peripheral Nerve Block Catheter has the following characteristics:

19 Ga., 30 to 90 cm with at minimum one flashback window to visualize fluids inside . catheter
. Offered in open and closed tip configurations
Internal radiopaque, echogenic coiled reinforced wire to visualize under Ultrasound .
Catheters are provided in sterile kit/set configurations or as a standalone replacement . catheter .

Indications for Use and Intended Use

The ARROW® FlexBlock™ Continuous Peripheral Nerve Block Kit/Set permits placement of catheters next to nerves and nerve plexuses for continuous nerve block anesthesia or analgesia

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techniques including upper extremity, lower extremity, abdominal and paravertebral locations for periods not exceeding 72 hours.

Technological Characteristics and Substantial Equivalence

The ARROW FlexBlock Continuous Peripheral Nerve Block has the same intended use to deliver anesthesia as the primary predicate (K103658) and referenced predicate (K121403). The FlexBlock is offered in lengths of 30-90 cm with both an open and closed tip configuration. All catheters have internal radiopaque; echogenic coiled reinforced wire to visualize under Ultrasound. The proposed Arrow FlexBlock Continuous Peripheral Nerve Block catheter is a non-stimulating catheter that can be inserted through either a stimulating or non-stimulating needle based on physician preference.

Nonclinical Testing

The results of the performance testing, i.e. tensile strength, column strength and flow rate, demonstrate that the FlexBlock Continuous Peripheral Nerve Block Catheter is as safe, as effective and performs comparably to the primary predicate (K 103658) and referenced predicate (K121403).

Pre-clinical evaluations have been conducted on the catheter and extracts thereof. No adverse effects were observed in any in vivo study conducted. In accord with ISO 10993-18 recommendations, Extractable and Leachable (E&L) studies were performed using, Bupivacaine, Naropin, Polocaine, Hydromorphone, Morphine, Meperidine, and Fentanyl. The toxicity of the relevant leachable chemicals relating to these drugs was reviewed and addressed. In addition, a comparative chemical analysis study was conducted to assess potential differences in the E&L profile between devices that were EO sterilized after one cycle versus devices that were processed with two EO cycles. There were no appreciable qualitative differences in the extractable profiles for the one time vs. two time EO-sterilized devices. The FlexBlock could potentially be used with Chloroprocaine. This aqueous drug can be used with the FlexBlock catheter with no expected differences in extractability compared to the broad range of solutions and solvents used in the E&L studies conducted above.

The relevant patient contacting components meet the requirements of applicable ISO 10993 Guidelines. The available and relevant toxicological data for a surrogate leachable chemical was reviewed. There was no evidence of significant risk of acute toxicity under the proposed conditions and duration of clinical use.

Conclusions

The FlexBlock Continuous Peripheral Nerve Block Catheter and the predicate Closed Tip Epidural (K103658) and referenced predicate Continuous Peripheral Nerve Block catheter (K121403) have the same indications for use to deliver anesthetic in epidural and nerve block procedures. The results of laboratory testing demonstrate the ARROW FlexBlock Continuous Peripheral Nerve Block Catheter is as safe and effective as the legally marketed devices and therefore is considered substantially equivalent to the cited predicate devices.

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DEPARTMENT OF HEALTH & HUMAN SERVICES

Image /page/2/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo features a stylized eagle with three tail feathers, representing the department's mission to protect the health of all Americans and provide essential human services. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES • USA" is arranged in a circular fashion around the eagle.

Public Health Service

Food and Drug Administration 10903 New Hampshire Avenue Document Control Room -WO66-G609 Silver Spring, MD 20993-0002

Arrow International, Incorporated Mr. Paul Amudala Regulatory Affairs Specialist 2400 Bernville Road Reading, Pennsylvania 19605

AUG 2 8, 2012

Re: K122027

Trade/Device Name: Arrow FlexBlock Continuous Peripheral Nerve Block Catheter Regulation Number: 21 CFR 868.5140 Regulation Name: Anesthesia Conduction Kit Regulatory Class: II Product Code: CAZ Dated: July 10, 2012 Received: July 11, 2012

Dear Mr. Amudala:

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.

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Page 2- Mr. Amudala

Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting (reporting of medical device-related adverse events) (21 CFR 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.

If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please go to

http://www.fda.gov/AboutFDA/CentersOffices/CDRH/CDRHOffices/ucm115809.htm for the Center for Devices and Radiological Health's (CDRH's) Office of Compliance. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR 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.

You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address http://www.fda.gov/MedicalDevices/Resourcesfor You/Industry/default.htm1.

Sincerely yours,

Wh for

Anthony D. Watson, B.S., M.S., M.B.A. Director Division of Anesthesiology, General Hospital, Infection Control and Dental Devices Office of Device Evaluation

Center for Devices and

· Radiological Health

Enclosure

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Indications for Use

510(k) Number (if known): _ K 12-2027

Device Name: ARROW FlexBlock Continuous Peripheral Nerve Block Catheter

Indications for Use:

Intended Use:

The catheter is designed to deliver anesthesia to manage perioperative pain and /or alleviate postoperative analgesia.

Prescription Use X (Part 21 CFR 801 Subpart D)

Over-The-Counter Use AND/OR (21 CFR 801 Subpart C)

(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE OF NEEDED)

Concurrence of CDRH, Office of Device Evaluation (ODE)

L. Schull

(Division Sign-Off) Division of Anesthestology, General Hospital Infection Control, Dental Devic

510(k) Number: 4122027

Regulation Number and Section

§ 868.5140 Anesthesia conduction kit.

(a)
Identification. An anesthesia conduction kit is a device used to administer to a patient conduction, regional, or local anesthesia. The device may contain syringes, needles, and drugs.(b)
Classification. Class II (performance standards).