NIHON KOHDEN QP-160 AK TREND PROGRAM WITH THE ADDITION OF DSA ASYMMETRY TREND AND FFT P

K120485 · Nihon Kohden America, Inc. · OMA · Mar 16, 2012 · Neurology

Device Facts

• Record ID: K120485
• Device Name: NIHON KOHDEN QP-160 AK TREND PROGRAM WITH THE ADDITION OF DSA ASYMMETRY TREND AND FFT P
• Applicant: Nihon Kohden America, Inc.
• Product Code: OMA · Neurology
• Decision Date: Mar 16, 2012
• Decision: SESE
• Submission Type: Special
• Regulation: 21 CFR 882.1400
• Device Class: Class 2
• Attributes: Software as a Medical Device

Indications for Use

The OP-160AK Trend program is a software-only device intended to be installed on the EEG-1200A series electroencephalograph to record, calculate, and display EEG data obtained from the EEG-1200A system. This device is intended to be used by qualified medical practitioners, trained in Electroencephalography, who will exercise professional judgment when using the information. The intended use for each of the software's outputs is as follows: - The EEG and aEEG wayeforms are intended to help the user monitor the state of the . brain. - The user-defined Fast Fourier Transform (FFT) parameters of this software (FFT power) . are intended to help the user analyze the EEG waveform. - The burst suppression parameters of this software (interval and bursts per . minute) are intended to aid in the identification and characterization of areas of burstsuppression pattern in the EEG. This device does not provide any diagnostic conclusion about the patient's condition to the user. The device is intended for use by medical personnel in any location within a medical facility, laboratory, clinic or nursing home or outside of a medical facility under direct supervision of a medical professional.

Device Story

Software-only module for EEG-1200A series electroencephalograph; processes raw EEG data to generate trends; displays waveforms, FFT power, burst suppression parameters (interval/bursts per minute), and asymmetry trends (DSA/FFT Power). Used in medical facilities, clinics, or nursing homes by trained medical practitioners. Output provides visual trends to assist clinicians in monitoring brain state and analyzing EEG patterns; does not provide diagnostic conclusions. Clinicians use displayed information to exercise professional judgment in patient management.

Clinical Evidence

No clinical data required. Safety and performance established via verification and validation testing, including comparison testing of trend calculations against predicate devices.

Technological Characteristics

Software-only EEG trend analysis module; operates on EEG-1200A series hardware. Features include Density Spectral Array (DSA), Spectral Edge Frequency, aEEG, Burst Suppression Ratio, Inter-burst Interval, Burst Per Minute, FFT Power, and Asymmetry trends. Supports up to 64 EEG and 8 DC channels. Non-patient contacting.

Indications for Use

Indicated for use by qualified medical practitioners trained in Electroencephalography to record, calculate, and display EEG data from the EEG-1200A system for monitoring brain state, analyzing waveforms via FFT, and identifying burst-suppression patterns. No specific patient age or disease state contraindications provided.

Regulatory Classification

Identification

An electroencephalograph is a device used to measure and record the electrical activity of the patient's brain obtained by placing two or more electrodes on the head.

Predicate Devices

• Nihon Kohden QP-160AK EEG Trend Program (K092573)
• Applied Neuroscience NeuroGuide Analysis System (K041263)
• Brain Scope Zoom-100DC (K082886)

Submission Summary (Full Text)

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K120485

## 510(K) SUMMARY

・・・

. .

Name and Address of Applicant

Nihon Kohden America. Inc. 90 Icon Street Foothill Ranch, CA 92610

Contact: Steve Geerdes Director, Regulatory Affairs [phone] ex. 3325 Fax: [phone]

Date: 2/14/2012

Trade/Device Name: Nihon Kohden QP-160AK EEG Trend Program

Common or usual Name: Electroencephalograph (EEG)

#### Legally Marketed Predicate:

Nihon Kohden QP-160AK EEG Trend Program (K092573)

Applied Neuroscience NeuroGuide Analysis System (K041263)

Brain Scope Zoom-100DC (K082886)

#### Intended Use:

The OP-160AK Trend program is a software-only device intended to be installed on the EEG-1200A series electroencephalograph to record, calculate, and display EEG data obtained from the EEG-1200A system. This device is intended to be used by qualified medical practitioners, trained in Electroencephalography, who will exercise professional judgment when using the information.

The intended use for each of the software's outputs is as follows:

- The EEG and aEEG wayeforms are intended to help the user monitor the state of the . brain.
- The user-defined Fast Fourier Transform (FFT) parameters of this software (FFT power) . are intended to help the user analyze the EEG waveform.
- The burst suppression parameters of this software (interval and bursts per . minute) are intended to aid in the identification and characterization of areas of burstsuppression pattern in the EEG.

This device does not provide any diagnostic conclusion about the patient's condition to the user.

The device is intended for use by medical personnel in any location within a medical facility, laboratory, clinic or nursing home or outside of a medical facility under direct supervision of a medical professional.

MAR 1 6 2012

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A summary of the technological characteristics of the device compared to the predicate device:

The QP-160AK EEG Trend program is the same as the previous version of QP-160AK cleared under 510k but has two new trends available (DSA Asymmetry trend and FFT Power Asymmetry trend).

The QP-160AK EEG Trend program's two new trends (DSA Asymmetry trend and FFT Power Asymmetry trend) are available in the BrainScope Zoom 100 DC (K082886) and the Applied Neuroscience Neuroguide Analysis System (K041263).

# Functional Comparision

| Nihon Kohden<br>160 Trend program under<br>review | Nihon Kohden<br>QP -160 Trend<br>Program Cleared<br>K092573 | BrainScope Zoom-<br>100DC cleared<br>K082886 | Applied<br>Neuroscience<br>NeuroGuide<br>Analysis System<br>Cleared K041263 |
|---------------------------------------------------------------------------------------|-------------------------------------------------------------|----------------------------------------------|-----------------------------------------------------------------------------|
| Function | | | |
| Number of EEG Channels<br>(Dependant on Amplifier)<br>Up to 32/64 EEG Channels | Same | N/A | N/A |
| Number of DC Channels<br>(Dependant on Amplifier)<br>Up to 8 DC Channels | Same | N/A | N/A |
| Density Spectral Array (DSA) Trend | Same | N/A | N/A |
| Density Spectral Array (DSA)<br>asymmetry Trend | None | Same | Same |
| Spectral Edge Frequency Trend | Same | N/A | N/A |
| Amplitude Integrated EEG (aEEG)<br>Trend | Same | N/A | N/A |
| Burst Suppression Ratio (BSR)<br>Trend | Same | N/A | N/A |
| Inter-burst Interval (IBI) Trend | Same | N/A | N/A |
| Burst Per Minute (BPM) Trend | Same | N/A | N/A |
| FFT Power Trend | Same | N/A | N/A |
| FFT Power Asymmetry Trend | None | Same | Same |
| FFT Power Ratio (e.g. Alpha /Delta,<br>Alpha/Beta) | Same | N/A | N/A |
| External input (DC input) display | Same | N/A | N/A |
| Number of trends<br>More than 16 | Same | N/A | N/A |
| User Selectable Trend Groups<br>(Panel) | Same | N/A | N/A |
| Time interval of trends<br>1 minute/page to 24 hours /page<br>1 cm/hour to 60 cm/hour | Same | N/A | N/A |
| User Selectable Trends Time Scale | Same | N/A | N/A |
| Annotation list | Same | N/A | N/A |
| Raw EEG data display | | N/A | N/A |
| Look-Back while recording<br>Synchronized Video | Same | | |

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# Testing (Non Clinical & Clinical) -

- To date no special controls or performance standards are known or established for this . device as required by sections 513(b) and 514 of the Food, Drug and Cosmetic Act as implemented by 21 CFR Part 861.
- The device is not sterile. .
- The device does not directly contact patients. Therefore, good laboratory practice studies . were not required per 21 CFR Part 58.
- The QP-160AK EEG Trend Program was subjected to safety and performance testing . procedures. The QP-160AK EEG Trend Program has undergone validation and verification testing to ensure conformance to all design requirements. Additionally, the system has undergone comparison testing to ensure the substantial equivalence of the calculation and display of EEG trends. These tests verified that the device performed within specifications.
- No Clinical testing was required .

# Conclusion of Substantial Equivalence:

- The comparison of technological characteristics and performance testing of the QP-. 160AK EEG Trend Program demonstrate that its safety, effectiveness, and performance are equivalent to the specified predicate devices.
- This software device is exactly the same as the predicate QP-160AK (K092573) except . for the addition of the two trends (DSA Asymmetry trend and FFT Power Asymmetry trend) that were added to the new QP-160AK. The Brainscope-100DC and the Applied Neuroscience Neuroguide Analysis System (K041263) provide the same DSA Asymmetry trend and FFT Power Asymmetry trend as the new QP-160AK. Therefore, Nihon Kohden believes that the device is substantially equivalent to the stated predicate devices.

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# DEPARTMENT OF HEALTH & HUMAN SERVICES

Public Health Service

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

MAR 1 6 2012

Nihon Kohden America, Inc. c/o Steve Geerdes Director, Regulatory Affairs 90 Icon Street Foothill Ranch, CA 92610

Re: K120485

Trade/Device Name: Nihon Kohden QP-160AK EEG Trend Program Regulation Number: 21 CFR 882.1400 Regulation Name: Amplitude-integrated electroencephalograph Regulatory Class: Class II Product Code: OMA, OLT, ORT Dated: February 14, 2012 Received: February 17, 2012

Dear Mr. Geerdes:

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.

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 of any I vath all the Act's requirements, including, but not limited to: registration and listing (21

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## Page 2 - Steve Geerdes

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 [phone] or [phone] or at its Internet address http://www.fda.gov/MedicalDevices/Resourcesfor You/Industry/default.htm.

Sincerely yours,

Malvina B. Eydelman, M.D.

Director Division of Ophthalmic, Neurological and Ear, Nose and Throat Devices Office of Device Evaluation Center for Devices and Radiological Health

Enclosure

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# Indications for Use Form

510(k) Number (if known): _ K120485

Nihon Kohden QP-160AK Trend Program with the addition of DSA Asymmetry trend Device Name: and FFT Power Asymmetry trend

Indications for Use:

The QP-160AK Trend program is a software-only device intended to be installed on the EEG-1200A series electroencephalograph to record, calculate, and display EEG data obtained from the EEG-1200A system. This device is intended to be used by qualified medical practitioners, trained in Electroencephalography, who will exercise professional judgment when using the information.

The intended use for each of the software's outputs is as follows:

- The EEG and aEEG waveforms are intended to help the user monitor the state of the brain. .
- The user-defined Fast Fourier Transform (FFT) parameters of this software (FFT power) are . intended to help the user analyze the EEG waveform.
- The burst suppression parameters of this software (interval and bursts per minute) are . intended to aid in the identification and characterization of areas of burst-suppression pattern in the EEG.

This device does not provide any diagnostic conclusion about the patient's condition to the user.

The device is intended for use by medical personnel in any location within a medical facility, laboratory, clinic or nursing home or outside of a medical facility under direct supervision of a medical professional.

Prescription Use (Part 21 CFR 801 Subpart D) AND/OR

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

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

Concurrence of CDRH, Office of Device Evaluation (ODE)

Kim

(Division Sign-Off) Division of Ophthalmic, Neurological and Ear, Nose and Throat Devices

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510(k) Number K120485