ES2 NEUROMONITORING ACCESSORY INSTRUMENTS

K140400 · Stryker Corporation · ETN · Jul 1, 2014 · Ear, Nose, Throat

Device Facts

Record IDK140400
Device NameES2 NEUROMONITORING ACCESSORY INSTRUMENTS
ApplicantStryker Corporation
Product CodeETN · Ear, Nose, Throat
Decision DateJul 1, 2014
DecisionSESE
Submission TypeTraditional
Regulation21 CFR 874.1820
Device ClassClass 2

Intended Use

The ES2® Awl, ES2® Taps, and ES2® Screwdriver are intended to be used with the ES2® Dilators & ES2® Tap Sleeve during neuromonitoring applications. The neuromonitoring accessory instrument set-up is also intended to be used for bone screw insertion under power.

Device Story

ES2® Neuromonitoring Accessory Instruments (Awl, Taps, Screwdriver) function as surgical nerve stimulators/locators; used in open or percutaneous minimally invasive posterior non-cervical spine surgery. Instruments are cannulated for K-Wire placement; manufactured from surgical grade stainless steel. During surgery, electrodes (clip or probe) attach to the instrument contact zone to deliver electrical stimulation from an external, FDA-cleared neuromonitoring console. The system provides proximity information to the surgeon to assist in nerve avoidance during bone preparation and screw insertion. The screwdriver may be used with or without power (corded or cordless). Output is visual/auditory feedback from the neuromonitoring console, allowing the surgeon to assess nerve proximity and adjust surgical trajectory, thereby reducing the risk of nerve injury.

Clinical Evidence

No human clinical data. Evidence consists of bench testing and a porcine animal study. Bench testing evaluated electrical safety (IEC 60601-1, IEC 60601-1-2) and signal integrity. Porcine study assessed functionality and safety of the powered screw insertion option (corded and cordless) during neuromonitoring. Results demonstrated that the powered configuration does not interfere with neuromonitoring signals and that the device is safe and effective for its intended use.

Technological Characteristics

Instruments: surgical grade stainless steel. Dilators/Tap Sleeves: RADEL®. Design: cannulated for K-wire. Stimulation: electrical via external console/electrodes. Connectivity: connects to external neuromonitoring consoles via clip or probe. Sterilization: reusable, validated for SAL 10^-6. Standards: IEC 60601-1 (safety), IEC 60601-1-2 (EMC).

Indications for Use

Indicated for use by surgeons to assist in locating spinal nerves by providing proximity information before, during, or after bone preparation and bone screw placement in open and percutaneous minimally invasive posterior surgical approaches of the non-cervical spine.

Regulatory Classification

Identification

A surgical nerve stimulator/locator is a device that is intended to provide electrical stimulation to the body to locate and identify nerves and to test their excitability.

Predicate Devices

Related Devices

Submission Summary (Full Text)

{0}------------------------------------------------ ### Traditional 510(k) #K140400 Stryker Spine ES2® Spinal System Neuromonitoring Accessory Instruments | Proprietary Name: | ES2® Neuromonitoring Accessory Instruments | |-------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | Common Name: | Surgical Nerve Stimulator/Locator | | Classification Name and Reference: | 21 CFR §874.1820: Surgical Nerve Stimulator/Locator | | Device Product Code: | ETN | | Proposed Regulatory Class: | Class II | | For Information contact: | Soraya King | | | Regulatory Affairs Specialist | | | 2 Pearl Court | | | Allendale, NJ 07401 | | | Telephone: (201) 760-8296 | | | Fax: (201) 962-4296 | | | Email: Soraya.King@Stryker.com | | Date Summary Prepared: | June 17, 2014 | | Predicate Devices | NuVasive® NVM5 System - K112718 NuVasive® NVM5 System - K123307 Stryker Spine ES2® Spinal System - K122845 | | Device Description | The ES2® Neuromonitoring instruments (Awl, Taps, and Screwdriver) are accessory devices to be used with FDA cleared neuromonitoring systems to deliver electrical stimulation to assist in location of the spinal nerves during intraoperative neurological monitoring of the non-cervical spine in open and percutaneous minimally invasive posterior surgical approaches. The instruments are manufactured from surgical grade stainless steel and are provided non-sterile.<br><br>The neuromonitoring application is a surgical option that allows the surgeon to locate the spinal nerves by providing proximity information during bone preparation and placement/insertion of bone screws. The ES2® Awl and ES2® Taps facilitate bone preparation, and the ES2® Screwdriver facilitates bone screw placement/insertion. The surgical accessories are compatible with commercially available FDA cleared neuromonitoring consoles/systems and associated electrodes. The nerves are stimulated using electrodes attached to the subject accessory devices. The neuromonitoring accessory instrument can be used with or without a | | Indication for Use | The ES2® Awl, ES2® Taps, and ES2® Screwdriver can be<br>used by the surgeon to assist in location of the spinal nerves by<br>providing proximity information before, during or after bone<br>preparation and placement of bone screws. | | Intended Use | The ES2® Awl, ES2® Taps, and ES2® Screwdriver are<br>intended to be used with the ES2® Dilators & ES2® Tap<br>Sleeve during neuromonitoring applications. The<br>neuromonitoring accessory instrument set-up is also intended<br>to be used for bone screw insertion under power. | | Summary of the Technological<br>Characteristics | The Stryker Spine ES2® Neuromonitoring Accessory Instruments are<br>substantially equivalent to the predicate devices in terms of design,<br>function, principals of operation, technological characteristics, and<br>indications and intended uses. As compared to the NuVasive®<br>NVM5® predicates, the ES2® Awl, ES2®Taps, and ES2®<br>Screwdriver are cannulated to allow for K-Wire placement during<br>percutaneous minimally invasive surgical approaches. The predicate<br>NuVasive® NVM5® instruments and the ES2® Neuromonitoring<br>Accessories are used with dilators and/or a tap sleeve to provide<br>insulation. The electrical signal for both the NuVasive® NVM5®<br>and ES2® instruments are supplied via electrodes (clip or probe)<br>that are attached to the neuromonitoring contact zone of the awls,<br>taps, or screwdrivers.<br><br>In addition, the ES2® Screwdriver can be used with or without<br>power for bone screw insertion. As FDA cleared in 510(k)<br>#K122845, the power supply can be corded or cordless. Bench<br>testing demonstrated that the ES2® Screwdriver can deliver safe and<br>effective neuromonitoring signals using the non-powered or<br>powered (corded and cordless) bone screw placement/insertion<br>options. | # Section 008: 510(k) Summary - {1}------------------------------------------------ Traditional 510(k) #K140400 , Stryker Spine ES2® Spinal System Neuromonitoring Accessory Instruments {2}------------------------------------------------ raditional 510(k) #K140400 Stryker Spine ES2® Spinal System Neuromonitoring Accessory Instruments # OMPARISON OF ES2® NEUROMONITORING ACCESSORY INSTRUMENT AND THE PREDICATE DEVICE FOR ISSOCIETY | Characteristic | Subject Device:<br>ES2® Neuromonitoring<br>Accessory Instruments | Predicate Device:<br>NuVasive® NVM5® System | Substantial Equivalence | |------------------------------------------------------------------|----------------------------------------------------------------------------------------------------|---------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | Neuromonitoring Accessories<br>Instruments | Awl, Taps, and Screwdriver | Taps and Screwdriver | Yes - The ES2® and predicate<br>system use the same types of<br>accessory instruments for<br>neuromonitoring applications during<br>bone preparation/pilot hole starter<br>and bone screw placement. The<br>ES2® Neuromonitoring Accessory<br>Instruments are employed and<br>assembled in a similar manner with<br>comparable set-up configurations to<br>deliver electrical signals. Testing<br>confirmed that the powered ES2®<br>Screwdriver configuration does not<br>interfere with the neuromonitoring<br>signals and is safe and effective. | | Use of Dilators | Dilators or Tap Sleeve | Dilators | Yes | | Compatible with Common<br>Neuromonitoring Consoles &<br>Software | Compatible with FDA cleared<br>neuromonitoring systems to<br>include the NuVasive® NVM5®<br>System | NuVasive® NVM5® System | Yes | | Connection to Neuromonitoring<br>unit | Clip or Probe (based on<br>Neuromonitoring System used) | Clip | Yes - the use of a clip or probe is<br>dependent on the neuromonitoring<br>console and/or surgeon's<br>preference. The clip or probe are<br>attached to the accessory instrument<br>on the exposed instrument contact<br>area above the dilator or tap sleeve<br>for both the ES2® and predicate<br>devices | Page 3 of 9 {3}------------------------------------------------ | 400<br>0<br>P<br>- | |--------------------| | ਮ<br>:47 | | 1<br>ਮ | | ી(<br>l | | ్ర | | aditional<br>Tre | Stryker Spine ES2® Spinal System Neuromonitoring Accessory Instruments . | Materials | Indication for Use | Unknown | |------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | Awl, Taps, & Screwdriver:<br>Surgical Grade Stainless Steel<br>Dilators & Tap Sleeve: RADEL®<br><br>The ES2® Awls, ES2® Taps, and ES2® Screwdriver can be used to assist in location of the spinal nerves by providing proximity information before, during or after bone preparation and placement of bone screws in open and percutaneous posterior surgical approaches of the non-cervical spine. | The NVM5® System is a medical device that is intended for intraoperative neurophysiologic monitoring during spinal surgery. The device provides information directly to the surgeon, to help assess a patient's neurophysiologic status. NVM5® provides this information by electrically stimulating nerves via electrodes located on surgical accessories and monitoring electromyography (EMG), transcranial motor evoked potential (TceMEP) or somatosensory evoked potential (SSEP) responses of nerves. XLIF (Detection) - The XLIF (Detection) function allows the surgeon to locate and evaluate spinal nerves, and is used as a nerve avoidance tool. Basic & Dynamic Screw Test – The Screw Test functions allow the surgeon to locate and evaluate the spinal nerves by providing proximity information before, during or after bone preparation and placement of bone screws. Free Run EMG – The Free Run EMG function identifies spontaneous EMG activity of spinal nerves by continually displaying a live stream waveform of any mechanically induced myotome contractions. Twitch Test (Train of Four) – The Twitch Test Function allows the | Yes – Instruments composed of well-characterized materials and accepted biocompatible materials.<br><br>Yes – the indications of the ES2® Neuromonitoring Accessory Instruments are a subset of the indications of the predicate device. This does not result in a new or different intended use as compared to the predicate. The subject and predicate instruments are employed in the same manner when used as a tool to assist the surgeon in locating spinal nerves before, during, or after bone preparation and bone screw placement for open and percutaneous surgical approaches. | Page 4 of 9 . : · . {4}------------------------------------------------ raditional 510(k) #K140400 Stryker Spinc ES2® Spinal System Neuromonitoring Accessory Instruments . | | | surgeon to assess moderate<br>degrees of neuromuscular block<br>in effect by evaluating muscle<br>contraction following a train of<br>four stimulation pulses.<br>● TCMEP – Transcranial<br>stimulation techniques for motor<br>evoked potentials are used to<br>assess for acute dysfunction in<br>axonal conduction of the<br>corticospinal tract. The TCMEP<br>function provides an adjunctive<br>method to allow the surgeon to<br>monitor spinal cord motor<br>pathway integrity during<br>procedures with a risk of<br>surgically induced motor injury.<br>● SSEP – The SSEP function<br>allows the surgeon to assess<br>sensory spinal cord function in<br>surgical procedures during which<br>the spinal cord is at risk.<br>● Remote Reader – The Remote<br>Reader function provides real<br>time remote access to the<br>NVM5® System for monitoring<br>physician outside of the operating<br>room.<br>● The Guidance function is<br>intended as an aid for use in either<br>open or percutaneous pedicle<br>cannulation producedure in the<br>lumbar spine of adult patients,<br>and when used in conjunction<br>with radiographic imaging<br>anatomy for the creation of a<br>cannulation trajectory for bone<br>screw placement. | |---------------|----------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | Sterilization | Instruments provided as reusable | Yes<br>As selected for individual accessories. | Page 5 of 9 {5}------------------------------------------------ Fraditional 510(k) #K140400 Stryker Spine ES2® Spinal System Neuromonitoring Accessory Instruments | | non-sterile devices with validated<br>sterilization parameters to assure a<br>SAL of 10-6 | and validated to assure a SAL of 10-6 | | |--------------------------------------------------------|-------------------------------------------------------------------------------------------|--------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | Surgical Approach | Open or Percutaneous/Minimally<br>Invasive | Open or Percutaneous/Minimally<br>Invasive | Yes | | Electromagnetic Compatibility &<br>Electrical Safety | IEC 60601-1<br>IEC 60601-1-2<br>IEC 61000-3-2<br>IEC 61000-3-3 | IEC 60601-1-2 | Yes | | Min. exposed surface area during<br>tissue stimulation | 0.53mm² | unknown | Yes - The test data demonstrated<br>that the design of the subject device,<br>the exposed surface area during<br>tissue stimulation, and<br>neuromonitoring instrument set-<br>up/configurations do not impact or<br>interfere with the electrical<br>signaling and are comparable to the<br>predicate devices. | Page 6 of 9 , . . ) : {6}------------------------------------------------ # raditional 510(k) #K140400 । Stryker Spine ES2® Spinal System Neuromonitoring Accessory Instruments : 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 : ・ · - : . {7}------------------------------------------------ | Summary of the Performance Data | This 510(k) pre-market notification seeks expanded indications for<br>the ES2® Awl, ES2® Taps, and ES2® Screwdriver to be used as<br>accessory instruments during neuromonitoring applications. No<br>design modifications, or changes in the materials of construction<br>were made to the ES2® Awl, ES2® Taps, or ES2® Screwdriver, as<br>previously presented in 510(k) #K122845, to facilitate<br>neuromonitoring. All instruments are manufactured from surgical<br>grade stainless steel. The materials of construction have been<br>well characterized and shown to have stable chemical and<br>mechanical properties that are not affected by aging or storage<br>conditions.<br><br>Performance testing was performed to demonstrate that the subject<br>devices are substantially equivalent to the identified predicate<br>instruments in terms of design, performance and intended use. The<br>ES2® Neuromonitoring Accessory Instruments were tested for<br>electrical safety in accordance with IEC 60601-1-2 for EMC and<br>Safety. The instruments were also evaluated as per IEC 60601-1. A<br>porcine animal study was conducted to assess the performance,<br>functionality, and safety of the ES2® Neuromonitoring Accessory<br>Instruments and implants utilizing the powered screw insertion<br>option, corded and cordless. Bench test data and assessment<br>confirmed substantial equivalence to the NuVasive® NVM5®<br>predicates, and the safety and efficacy of the devices.<br><br>Laboratory tests were conducted in compliance with applicable<br>Good Laboratory Practices (GLP) requirements stipulated in 21 CFR<br>Part 58. | |---------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | Conclusion | Based on the information and comparison tables included in this<br>510(k), the ES2® Neuromonitoring Accessory Instruments are<br>substantially equivalent to the NuVasive® NVM5® predicates. The<br>instruments are employed in the same manner, have similar intended | | | and indications for use, principles of operation, and technological<br>characteristics. The ES2® subject devices met all required<br>acceptance criteria and did not create new safety or efficacy<br>concerns. | {8}------------------------------------------------ ### Traditional 510(k) #K140400 : · : ・ 1 Stryker Spine ES2® Spinal System Neuromonitoring Accessory Instruments ن r . . : ! バ {9}------------------------------------------------ Image /page/9/Picture/0 description: The image contains a logo for the U.S. Department of Health and Human Services. The logo features a stylized eagle or bird-like symbol with three curved lines representing its wings or body. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES USA" is arranged in a circular fashion around the bird symbol. The logo is in black and white. Public Health Service Food and Drue Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MI) 20993-0002 July 1, 2014 Stryker Spine Sorava King Regulatory Affairs Specialist 2 Pearl Court Allendale. NJ 07401 Re: K140400 Trade/Device Name: ES2® Neuromonitoring Accessory Instruments Regulation Number: 21 CFR 874.1820 Regulation Name: Surgical nerve stimulator/locator Regulatory Class: Class II Product Code: ETN Dated: April 1. 2014 Received: April 2. 2014 Dear Ms. King: 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 vour 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 I'DA '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 {10}------------------------------------------------ Page 2 - Ms. Soraya King 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 contact the Division of Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm. 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 Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm. Sincerely yours, ## Felipe Aguel -S Carlos L. Peña, Ph.D., M.S. for Director Division of Neurological and Physical Medicine Devices Office of Device Evaluation Center for Devices and Radiological Health Enclosure {11}------------------------------------------------ ### DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration ### Indications for Use Form Approved: OMB No. 0910-0120 Expiration Date: January 31, 2017 See PRA Statement below. 510(k) Number (if known) KI40400 ### Device Name ES2® Neuromonitoring Accessory Instruments: ES20 Awl, ES20 Taps, and ES2® Screwdriver Indications for Use (Describe) The ES2® Awl, ES2® Taps, and ES2® Screwdriver can be used to assist in location of the spinal nerves by providing proximity information before, during or after bone preparation and placement of bone screws in open and perculaneous minimally invasive posterior surgical approaches of the non-cervical spine, ### 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) PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON A SEPARATE PAGE IF NEEDED. ### FOR FDA USE ONLY Concurrence of Center for Devices and Radiological Health (CDRH) (Signature) Felipe Aquel -S Date: 2014.07.01 14:20:03 -04'00' 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."
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