K Number
K202781
Device Name
Neuspera Neurostimulation System (NNS)
Date Cleared
2021-08-27

(339 days)

Product Code
Regulation Number
882.5870
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP Authorized
Intended Use
The Neuspera Neurostimulation System (NNS) is indicated for pain management in adults who have severe intractable chronic pain of peripheral nerve origin, as the sole mitigating agent or as an adjunct to other modes of therapy used in a multidisciplinary approach. The system is not intended to treat pain in the craniofacial region. The Neuspera Neurostimulation System (NNS) is also used for trial stimulation (no longer than 30 days) to determine efficacy before recommendation for a permanent (long term) implant.
Device Description
The Neuspera Neurostimulation System is used for peripheral nerve stimulation to provide therapeutic relief for chronic, intractable pain of peripheral nerve origin. The System consists of an implantable pulse generator (IPG), electrode array, surgical implant tools, wireless worn transmitter, clinician programmer and a patient controller. The implantable pulse generator is a miniature implanted neurostimulator, powered by an externally worn wireless transmitter device which contains a rechargeable battery.
More Information

No
The summary does not mention AI, ML, or related concepts, and the device description focuses on hardware components and basic neurostimulation functionality.

Yes
The device is indicated for "pain management" and provides "therapeutic relief for chronic, intractable pain," directly addressing a health condition.

No

Explanation: The device is a neurostimulation system indicated for pain management. Its purpose is therapeutic relief, not diagnosis. While it can be used for trial stimulation to determine efficacy, this is part of its therapeutic application rather than a diagnostic one.

No

The device description explicitly lists hardware components such as an implantable pulse generator, electrode array, surgical implant tools, and a wireless worn transmitter.

No, this device is not an IVD (In Vitro Diagnostic).

Here's why:

  • IVD Definition: In Vitro Diagnostics are medical devices used to perform tests on samples taken from the human body, such as blood, urine, or tissue, to detect diseases, conditions, or infections.
  • Neuspera Neurostimulation System Function: The Neuspera Neurostimulation System is an implantable device that directly stimulates peripheral nerves to manage pain. It does not analyze samples taken from the body.
  • Intended Use: The intended use clearly states it's for "pain management in adults who have severe intractable chronic pain of peripheral nerve origin" and for "trial stimulation." This is a therapeutic application, not a diagnostic one.
  • Device Description: The description details components like an implantable pulse generator, electrode array, and external transmitter, all of which are consistent with a neurostimulation system, not an IVD.

The information provided clearly indicates that the Neuspera Neurostimulation System is a therapeutic device used for pain management through direct nerve stimulation, not a diagnostic device that analyzes samples.

N/A

Intended Use / Indications for Use

The Neuspera Neurostimulation System (NNS) is indicated for pain management in adults who have severe intractable chronic pain of peripheral nerve origin, as the sole mitigating agent or as an adjunct to other modes of therapy used in a multidisciplinary approach. The system is not intended to treat pain in the craniofacial region.

The Neuspera Neurostimulation System (NNS) is also used for trial stimulation (no longer than 30 days) to determine efficacy before recommendation for a permanent (long term) implant.

Product codes (comma separated list FDA assigned to the subject device)

GZF

Device Description

The Neuspera Neurostimulation System is used for peripheral nerve stimulation to provide therapeutic relief for chronic, intractable pain of peripheral nerve origin. The System consists of an implantable pulse generator (IPG), electrode array, surgical implant tools, wireless worn transmitter, clinician programmer and a patient controller. The implantable pulse generator is a miniature implanted neurostimulator, powered by an externally worn wireless transmitter device which contains a rechargeable battery.

Similar to the predicate, the Neuspera Neurostimulation therapy utilizes pulsed electrical current to create an energy field that acts on the targeted nerve to inhibit the transmission of pain signals to the brain. The Neuspera Neurostimulation System may also be used during the trial period before recommendation for permanent implant.

The Neuspera Neurostimulation System (NNS) System is comprised of the following components:

Neuspera Implanted Pulse Generator (IPG) Or Neuspera Implanted Microstimulator: The implanted Neuspera Neurostimulation System (NNS) includes a miniaturized implantable neurostimulator (approximately 17mm long by 2.3 mm diameter at its widest point) combining a receiver and a hermitically sealed pulse generator. The IPG/Microstimulator is a hermitically sealed electronic package (0.02 cc) consisting of a highly integrated electronic circuit with a custom ASIC (application specific integrated circuit) and a flex circuit interconnect. This package harvests the received energy, charges an internal energy bank, and manages power/communication. The energy bank is used by the internal stimulation waveform generator to generate stimulation pulses based upon the digitally received programming parameters. Hermetic feedthroughs conduct the stimulation waveform from the stimulation implantable pulse generator to the electrode array described below.

Electrode Array: The electrode array is an implantable and attached to the IPG through hermetic feedthroughs connectors. The electrode array is designed to deliver electrical pulses to the nerve via an array of four cylindrical electrodes at the distal end of the device.

Surgical/Implant Tools: The tools provided in the Neuspera Neurostimulation System (NNS) Kit are used to introduce and implant the neurostimulator. A needle along with imaging guidance is used to locate the targeted nerve. Next, the needle is replaced with a guidewire. An incision is made at the skin surface adjacent to the guidewire. Next, a pre-dilator is inserted around the guidewire to dilate the path to the nerve. The pre-dilator is then removed and replaced with an introducer and dilator. The dilator and guidewire are then removed. The implant is tunneled through the introducer (sheath) using a connected pushrod. The PTFE tether at the proximal end of the implant is cut and placed in a subcutaneous pocket.

Externally Worn Wireless Transmitter: The charging system consists of an externally worn wireless transmitter that is rechargeable. Power is delivered to the implanted neurostimulator using Neuspera's proprietary mid-field powering technology. The Wireless Transmitter is worn in proximity to the implanted neurostimulator and held in position by custom designed garments. The Wireless Transmitter is controlled by custom software applications (referred to as the Clinician Programmer and the Patient Controller) running on off-the-shelf portable hardware (i.e., Apple iPad and Apple iPod Touch, respectively). The rechargeable battery of the Wireless Transmitter is charged by an off-the-shelf charging pad.

Clinician Programmer and Patient Controller: The clinician programmer (Programmer) enables management of the Wireless Transmitter associated with the patient's neurostimulator, programming a patient's stimulation therapy, review of the patient's therapy statistics, and connection of a patient controller (Controller) to a patient's Wireless Transmitter. The Programmer runs Neuspera's propriety programmer software on a commercially available Apple iPad. The iPad runs in kiosk mode, which disables non-essential programs and functions. The Patient Controller is an Apple iPod Touch which runs the Neuspera patient controller software application ("Neuspera App"). The iPod Touch comes with its own USB/wall charging accessories. The iPod runs in kiosk mode, which disables non- essential programs and functions. The Controller is used by the patient to turn his/her Wireless Transmitter on/off, adjust stimulation amplitude (within limits set by the physician), and select which of the physician pre-programmed stimulation programs to use. The user can also monitor the Wireless Transmitter battery level, view his/her program use history, and adjust the Wireless Transmitter for airplane and international travel.

Mentions image processing

Not Found

Mentions AI, DNN, or ML

Not Found

Input Imaging Modality

Not Found

Anatomical Site

Adjacent to nerves peripheral to central nervous system, excluding craniofacial region

Indicated Patient Age Range

Adults

Intended User / Care Setting

Intended Clinician: Orthopedic, Neurosurgeon, Anesthesiologist
Intended User: Physician, Layperson
Environmental Use: Hospital, Home

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

Not Found

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

Summary of Non-Clinical Testing:
The Neuspera Neurostimulation System design verification and validation consisted of functional, performance and MRI testing. The verification and validation testing were performed according to the product specifications as well as to applicable ISO standards. Design verification and validation testing was performed to ensure that the Neurostimulator System met design specifications and customer requirements. Non-clinical testing activities includes but not limited to the following:

  • Visual tests
  • Dimensional measurement tests
  • Tensile tests
  • Mechanical Tests
  • Electrical Test
  • EMC Tests
  • MRI Tests

Summary of Animal Testing:
Two GLP animal studies were conducted to evaluate the safety and performance of the Neuspera Neurostimulation System.
The first animal study showed that the overall implant and removal of the non- functional devices at 2-weeks and 90-days was completed easily without sequelae. The objective of the second GLP animal study was intended to evaluate the safety and performance of the Wireless Transmitter as well as to validate the use of the Neuspera Implant Kit. The study showed that the surgical procedure was safe, and the Neuspera Neurostimulation system performed as expected.

Summary of Clinical Testing:
Clinical evaluation is not required for the Neuspera Neurostimulation System as the indications for use are equivalent to the legally marketed predicate device and referenced device. These types of devices, including versions of the legally marketed predicate device, have been on the market for many years with a proven safety and efficacy for the use of the device. Therefore, Neuspera determined that bench and non-clinical testing are sufficient to demonstrate that the Neuspera Neurostimulation System is as safe and effective as the predicate device.

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

Not Found

Predicate Device(s): If the device was cleared using the 510(k) pathway, identify the Predicate Device(s) K/DEN number used to claim substantial equivalence and list them here in a comma separated list exactly as they appear in the text. List the primary predicate first in the list.

K183579

Reference Device(s): Identify the Reference Device(s) K/DEN number and list them here in a comma separated list exactly as they appear in the text.

K200482

Predetermined Change Control Plan (PCCP) - All Relevant Information for the subject device only (e.g. presence / absence, what scope was granted / cleared under the PCCP, any restrictions, etc).

Not Found

§ 882.5870 Implanted peripheral nerve stimulator for pain relief.

(a)
Identification. An implanted peripheral nerve stimulator for pain relief is a device that is used to stimulate electrically a peripheral nerve in a patient to relieve severe intractable pain. The stimulator consists of an implanted receiver with electrodes that are placed around a peripheral nerve and an external transmitter for transmitting the stimulating pulses across the patient's skin to the implanted receiver.(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.

August 27, 2021

Neuspera Medical Inc. Alexander Yeh Founder and Chief Technology Officer 51 Daggett Dr. San Jose, California 95134

Re: K202781

Trade/Device Name: Neuspera Neurostimulation System (NNS) Regulation Number: 21 CFR 882.5870 Regulation Name: Implanted Peripheral Nerve Stimulator For Pain Relief Regulatory Class: Class II Product Code: GZF Dated: August 25, 2021 Received: August 25, 2021

Dear Alexander Yeh:

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,

For Pamela Scott Assistant Director DHT5B: Division of Neuromodulation and Physical Medicine Devices OHT5: Office of Neurological and Physical Medicine Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health

Enclosure

2

Indications for Use

510(k) Number (if known) K202781

Device Name Neuspera Neurostimulation System (NNS)

Indications for Use (Describe)

The Neuspera Neurostimulation System (NNS) is indicated for pain management in adults who have severe intractable chronic pain of peripheral nerve origin, as the sole mitigating agent or as an adjunct to other modes of therapy used in a multidisciplinary approach. The system is not intended to treat pain in the craniofacial region.

The Neuspera Neurostimulation System (NNS) is also used for trial stimulation (no longer than 30 days) to determine efficacy before recommendation for a permanent (long term) implant.

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."

3

SECTION 8: 510(k) SUMMARY

This summary of 510(k) safety and effectiveness information is submitted in accordance with the requirements of SMDA 1990 and 21 CFR 807.92.

510(k) Number: K202781

Applicant Information:

Owner Name:Neuspera Medical Inc
Address:51 Daggett Dr.
San Jose, CA 95134
Contact Person:Alexander Yeh, Ph.D
Contact Person:Alexander Yeh, PE
Phone Number:(888) 846-8332
Date Prepared:9/21/2020

Device Information:

Trade/Proprietary Name: Neuspera Neurostimulation System Common/Usual Name: Neuspera Neurostimulation System Product Code: GZF Requlation number: 21 CFR 882.5870: Stimulator, peripheral nerve, implanted (Pain Relief) Class: Class II Device Classification Panel: Neurology

Predicate Devices:

The Neuspera Neurostimulation System is substantially equivalent in intended use and method of operation to the cleared Nalu Neurostimulator System (K183579).

Device Description:

The Neuspera Neurostimulation System is used for peripheral nerve stimulation to provide therapeutic relief for chronic, intractable pain of peripheral nerve origin. The System consists of an implantable pulse generator (IPG), electrode array, surgical implant tools, wireless worn transmitter, clinician programmer and a patient controller. The implantable pulse generator is a miniature implanted neurostimulator, powered by an externally worn wireless transmitter device which contains a rechargeable battery.

4

Similar to the predicate, the Neuspera Neurostimulation therapy utilizes pulsed electrical current to create an energy field that acts on the targeted nerve to inhibit the transmission of pain signals to the brain. The Neuspera Neurostimulation System may also be used during the trial period before recommendation for permanent implant.

The Neuspera Neurostimulation System (NNS) System is comprised of the following components:

| System

ComponentDescription
Neuspera
Implanted Pulse
Generator (IPG)
Or
Neuspera
Implanted
MicrostimulatorThe implanted Neuspera Neurostimulation System (NNS) includes a
miniaturized implantable neurostimulator (approximately 17mm long by
2.3 mm diameter at its widest point) combining a receiver and a
hermitically sealed pulse generator.
The IPG/Microstimulator is a hermitically sealed electronic package
(0.02 cc) consisting of a highly integrated electronic circuit with a
custom ASIC (application specific integrated circuit) and a flex circuit
interconnect. This package harvests the received energy, charges an
internal energy bank, and manages power/communication. The
energy bank is used by the internal stimulation waveform generator to
generate stimulation pulses based upon the digitally received
programming parameters.
Hermetic feedthroughs conduct the stimulation waveform from the
stimulation implantable pulse generator to the electrode array
described below.
Electrode ArrayThe electrode array is an implantable and attached to the IPG
through hermetic feedthroughs connectors. The electrode array is
designed to deliver electrical pulses to the nerve via an array of four
cylindrical electrodes at the distal end of the device.
Surgical/Implant
ToolsThe tools provided in the Neuspera Neurostimulation System (NNS)
Kit are used to introduce and implant the neurostimulator.
A needle along with imaging guidance is used to locate the targeted
nerve. Next, the needle is replaced with a guidewire. An incision is
made at the skin surface adjacent to the guidewire. Next, a pre-
dilator is inserted around the guidewire to dilate the path to the nerve.
The pre-dilator is then removed and replaced with an introducer and
dilator. The dilator and guidewire are then removed. The implant is
tunneled through the introducer (sheath) using a connected pushrod.
The PTFE tether at the proximal end of the implant is cut and placed
in a subcutaneous pocket.
System
ComponentDescription
Externally Worn
Wireless
TransmitterThe charging system consists of an externally worn wireless
transmitter that is rechargeable. Power is delivered to the implanted
neurostimulator using Neuspera's proprietary mid-field powering
technology. The Wireless Transmitter is worn in proximity to the
implanted neurostimulator and held in position by custom designed
garments.
The Wireless Transmitter is controlled by custom software
applications (referred to as the Clinician Programmer and the Patient
Controller) running on off-the-shelf portable hardware (i.e., Apple
iPad and Apple iPod Touch, respectively). The rechargeable battery
of the Wireless Transmitter is charged by an off-the-shelf charging
pad.
Clinician
Programmer and
Patient ControllerThe clinician programmer (Programmer) enables management of the
Wireless Transmitter associated with the patient's neurostimulator,
programming a patient's stimulation therapy, review of the patient's
therapy statistics, and connection of a patient controller (Controller) to a
patient's Wireless Transmitter. The Programmer runs Neuspera's
propriety programmer software on a commercially available Apple iPad.
The iPad runs in kiosk mode, which disables non-essential programs
and functions.
The Patient Controller is an Apple iPod Touch which runs the
Neuspera patient controller software application ("Neuspera App").
The iPod Touch comes with its own USB/wall charging accessories.
The iPod runs in kiosk mode, which disables non- essential programs
and functions. The Controller is used by the patient to turn his/her
Wireless Transmitter on/off, adjust stimulation amplitude (within limits
set by the physician), and select which of the physician pre-
programmed stimulation programs to use. The user can also monitor
the Wireless Transmitter battery level, view his/her program use
history, and adjust the Wireless Transmitter for airplane and
international travel.

5

6

Intended Use:

The Neuspera Neurostimulation System (NNS) is indicated for pain management in adults who have severe intractable chronic pain of peripheral nerve origin, as the sole mitiqating agent or as an adjunct to other modes of therapy used in a multidisciplinary approach. The system is not intended to treat pain in the craniofacial region.

The Neuspera Neurostimulation System (NNS) is also used for trial stimulation (no longer than 30 days) to determine efficacy before recommendation for a permanent (long term) implant.

Summary of Technological Characteristics in Comparison to Predicate Device:

Neuspera Neurostimulation System (NNS and the predicate device Nalu Neurostimulation System for Peripheral Nerve Stimulation (K183579) have similar indication for use, technological characteristics and performance. Both the subject device and the predicate devices are designed to provide pain management in adults who have severe intractable chronic pain of peripheral nerve origin, as the sole mitigating agent or as an adjunct to other modes of therapy used in a multidisciplinary approach. Both systems are not intended to treat pain in the craniofacial region. The minor differences in wording for intended use statements of the respective products do not alter the intended patient or clinical effect, and, therefore, the Neurostimulator System is substantially equivalent with respect to intended use. In addition, the differences listed in tables below do not present any new issues of safety or effectiveness. Moreover, performance testing demonstrates that the Neuspera Neurostimulation System performs in a substantially equivalent manner.

7

Table 1: Predicate Device Comparison Matrix
Neuspera Neurostimulation
System (Subject Device)Nalu Neurostimulation
System (Primary Predicate)Bioness StimRouter
Neuromodulation System
(Reference Device)Analysis of
Technological
Differences from
Primary Predicate
510(k)K202781K183579K200482N/A
Product Code and classGZF, Class IISameSameSame
Regulation number21 CFR §882.5870SameSameSame
Classification nameStimulator, Peripheral Nerve, Implanted (pain
relief)SameSameSame
Intended UseStimulation of peripheral nerves for chronic,
intractable painSameSameSame
Indications for UseThe Neuspera Neurostimulation System (NNS) is
indicated for pain management in adults who have
severe intractable chronic pain of peripheral nerve
origin, as the sole mitigating agent, or as an
adjunct to other modes of therapy used in a
multidisciplinary approach. The Neuspera
Neurostimulation System (NNS) is not intended to
treat pain in the craniofacial region.
The Neuspera Neurostimulation System (NNS) is
also used for trial stimulation (no longer than 30
days) to determine efficacy before recommendation
for a permanent (long term) implant.This system is indicated for pain
management in adults who have severe
intractable chronic pain of peripheral nerve
origin, as the sole mitigating agent, or as an
adjunct to other modes of therapy used in a
multidisciplinary approach. The system is
not intended to treat pain in the craniofacial
region. The trial devices are solely used for
trial stimulation (no longer than 30 days) to
determine efficacy before recommendation
for a permanent (long term) device.The StimRouter Neuromodulation
System™ is indicated for pain
management in adults who have severe
intractable chronic pain of peripheral
nerve origin, as an adjunct to
other modes of therapy (e.g.,
medications). The StimRouter is not
intended to treat pain in the craniofacial
region.Differences in wording do not affect
safety and effectiveness of intended
use
Prescription Use?YesSameSameSame
Implant siteAdjacent to nerves peripheral to central
nervous system, excluding craniofacial regionSameSameSame
Environmental UseHospital, HomeSameSameSame
Intended ClinicianOrthopedic, Neurosurgeon, AnesthesiologistSameSameSame
Intended UserPhysician, LaypersonSameSameSame
Mode of ActionRadio Frequency (RF) wireless transmission
of energy to charge implanted energy source
with stimulation pulse generator to produce
stimulation at stimulator electrodes.Radio Frequency (RF) wireless
transmission of energy to produce
stimulation at stimulator electrodesDC conductive coupling from
external patch pulse generator to
implanted leadDifferences do not affect safety and
effectiveness of intended use
Software Level of
ConcernModerateSameSameSame
Table 2: Implanted Components
Neuspera Neurostimulation
System ( Subject Device )Nalu Neurostimulation
System ( Primary Predicate )Bioness StimRouter
Neuromodulation System
( Reference Device )Analysis of
Technological
Differences from
Primary Predicate
DimensionsIPG: 2.33mm diameter, electrode
array 1.3mm diameter, 5.1 cm total
lengthLead = 1.30 mm diameter, 40 or 60 cm
length, IPG = 28 x 11 x 4.9 mmLead = 1.20 mm diameter, 15 cm
lengthDifferences do not affect safety and
effectiveness of intended use
ConfigurationImplanted antenna receiver, energy
storage capacitor, stimulation pulse
generator coupled with electrode
arraysEmbedded receiver, flexible circuit
boardImplanted electrode array and
external pulse generatorDifferences do not affect safety and
effectiveness of intended use
Implant sitePeripheral nerves, excluding
craniofacial regionSameSameSame
Electrical
componentsEmbedded receiver, flexible circuit
board with energy storage and
stimulation pulse generatorSameEmbedded receiverDifferences do not affect safety and
effectiveness of intended use
Power DeliveryRadio frequency transmission receiverCoupled receiver radio frequency
transmissionDC transcutaneous couplingDifferences do not affect safety and
effectiveness of intended use
Electrode MaterialPlatinum-iridium 90:10SameSameSame
Insulation Body
MaterialPellethane 2363-55DSameSiliconeDifferences do not affect safety and
effectiveness of intended use
Electrode Array
Diameter1.30 mm1.30 mm1.20 mmDifferences do not affect safety and
effectiveness of intended use
Electrode Array
length21mm52 mm5 mmDifferences do not affect safety and
effectiveness of intended use
No. of Electrodes
per array483Differences do not affect safety and
effectiveness of intended use
Individual
Electrode length3mmSameSameSame
Electrode surface
area12.25 mm212.25 mm36.3 mm2Same
SterilizationEthylene OxideSameSameSame
Table 3: Therapy
Neuspera
Neurostimulation
System ( Subject Device )Nalu
Neurostimulation
System ( Primary
Predicate )Bioness
StimRouter
Neuromodulation
System ( Primary
Predicate )Analysis of
Technological
Differences from
Primary Predicate
Pulse Frequency4 to 130 Hz2 to 1500 Hz1 to 200 HzDifferences do not affect safety and
effectiveness of intended use
Pulse Width105 to 960 µs12 to 1000 µs70 to 500µsDifferences do not affect safety and
effectiveness of intended use
Current/Voltage
RegulatedVoltageCurrentCurrent (dependent
on pick-up ratio at
implant)Differences do not affect safety and
effectiveness of intended use
Output Current (300
Ohms)0 to 5.73 mA*0 to 10.2 mA0 to 5 mA***Differences do not affect safety and
effectiveness of intended use
Output Current (500
Ohms)0 to 5.44 mA*0 to 10.2 mA0 to 5 mA***Differences do not affect safety and
effectiveness of intended use
Output Current (800
Ohms)0 to 5.20 mA*0 to 10.2 mA0 to 5 mA***Differences do not affect safety and
effectiveness of intended use
Waveformcharge balanced (delayed)
biphasic asymmetricalSamecharge balanced
(delayed) biphasic
asymmetrical or
symmetricalSame
Pulse ShapeDecaying
ExponentialSameSameSame
Maximum phase
charge (300 Ohms)2.88 µC/pulse**6.8 µC/pulse3 µC/pulse***Differences do not affect safety and
effectiveness of intended use
Maximum phase
charge (500 Ohms)2.74 µC/pulse**6.4 µC/pulse3 µC/pulse***Differences do not affect safety and
effectiveness of intended use
Maximum phase
charge (800 Ohms)2.43 µC/pulse**4.7 µC/pulse3 µC/pulse***Differences do not affect safety and
effectiveness of intended use
Maximum charge
density (300 Ohm)23.5 µC/cm2**53.1 µC/cm215.9 µC/cm2***Differences do not affect safety and
effectiveness of intended use
Maximum charge
density (500 Ohm)22.4 µC/cm2**50.3 µC/cm215.9 µC/cm2***Differences do not affect safety and
effectiveness of intended use
Maximum charge
density (800 Ohm)19.8 µC/cm2**36.9 µC/cm215.9 µC/cm2***Differences do not affect safety and
effectiveness of intended use
Table 3: Therapy
Neuspera
Neurostimulation
System ( Subject Device )Nalu
Neurostimulation
System ( Primary Predicate )Bioness
StimRouter
Neuromodulation
System ( Primary Predicate )Analysis of
Technological
Differences from
Primary Predicate
Maximum current
density (300 Ohm)46.8 mA/cm2*106.1 mA/cm226.5 mA/cm2***Differences do not affect safety and
effectiveness of intended use
Maximum current
density (500 Ohm)44.4 mA/cm2*100.6 mA/cm226.5 mA/cm2***Differences do not affect safety and
effectiveness of intended use
Maximum current
density (800 Ohm)42.4 mA/cm2*73.9 mA/cm226.5 mA/cm2***Differences do not affect safety and
effectiveness of intended use
Net Charge0 $ \mu $ CSameSameSame
Pulse Delivery ModeContinuousSameSameSame
Current Path optionsBipolarSameSameSame
Program CycleCycle through programsSameSameSame
Pulse PatternFine tuning of pulse patternsSameSameSame
Dosage TimeCycling ON/OFF 1 second-1
daySameSameSame

Neuspera Neuspera Neurostimulation System (NNS) Traditional 510(K)

8

9

10

  • measured with typical therapy pulse width of 240us

** measured with maximum pulse with of 960us

*** unreported test impedance conditions

11

Summary of Non-Clinical Testing:

The Neuspera Neurostimulation System design verification and validation consisted of functional, performance and MRI testing. The verification and validation testing were performed according to the product specifications as well as to applicable ISO standards. Design verification and validation testing was performed to ensure that the Neurostimulator System met design specifications and customer requirements. Non-clinical testing activities includes but not limited to the following:

  • . Visual tests
  • . Dimensional measurement tests
  • Tensile tests ●
  • . Mechanical Tests
  • Electrical Test ●
  • EMC Tests ●
  • MRI Tests ●

Full test reports have been included within the submission. Additionally, test summaries have been prepared and are presented within the applicable submission section. Per Guidance for Industry and FDA Staff – Recognition and Use of Consensus Standards. Table below identifies the standards that have been referenced within this submission.

| Standard Name | FDA recognition
number: | Standard Title |
|--------------------------------------------|----------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| ES60601-
1:2005/(R)2012
and A1:2012, | 19-4 | 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) |
| HA60601-1-11:2015 | 19-16 | Medical Electrical Equipment -- Part 1-11: General
requirements for basic safety and essential
performance -- Collateral Standard: Requirements for
medical electrical equipment and medical electrical
equipment and medical electrical systems used in the
home healthcare environment (IEC 60601-1-11:2015
MOD) |
| 10993-1 Fifth edition
2018-08 | 2-258 | Biological evaluation of medical devices -
Part 1: Evaluation and testing within a risk
management process |
| 11135 Second
edition
2014-07-15 | 14-452 | Sterilization of health-care products - Ethylene oxide -
Requirements for the development, validation and
routine control of a sterilization process for medical
devices |
| 14708-3 Second
edition 2017-04 | 17-15 | Implants for surgery - Active implantable
medical devices - Part 3: Implantable
neurostimulators |

Traditional 510(k)

12

Biocompatibility Testing:

Biocompatibility testing for the Neuspera Neurostimulation System has been completed in accordance with the International Standard IS0-10993-1:2018 " Biological evaluation of medical devices - Part 1: Evaluation and testing within a risk management process ". Biocompatibility testing was based upon the categorization of the different body- contacting components and duration of the Neuspera PNS system. These categories are as follows:

  • . lmplant is biocompatible per ISO 10993-1:2018 for long-term implant (>30 days)
  • . All implant tools are biocompatible for limited duration tissue contact (