(16 days)
Not Found
Yes
The device description mentions "Structural Injury Classification using brain electrical activity" which is likely derived from the analysis of QEEG parameters. While not explicitly stating AI/ML, the classification of complex biological signals like EEG into categories (negative, positive, equivocal) often involves sophisticated algorithms that could include machine learning techniques, especially given the context of aiding in the evaluation for structural brain injury. The lack of explicit mention of AI/ML or training/test sets in the summary is common in older 510(k) submissions, but the function described strongly suggests the use of advanced analytical methods that could fall under the umbrella of AI/ML.
No.
The device is used to record, measure, analyze, and display brain electrical activity to aid in the evaluation and diagnosis of traumatic brain injury, not to provide therapy.
Yes
The device aids in the evaluation of patients for head CT after a closed head injury and is intended to "support clinical assessments and aid in the diagnosis of traumatic brain injury (TBI)". It provides "Structural Injury Classification" which correlates to the presence or absence of structural brain injury visible on head CT.
No
The device description explicitly states it is a "portable, non-invasive, non-radiation emitting, point of care device" and mentions recording and measuring brain electrical activity utilizing electrodes on the forehead, indicating the presence of hardware components beyond just software.
Based on the provided text, the BrainScope One device is not an In Vitro Diagnostic (IVD).
Here's why:
- IVDs analyze samples taken from the human body. The BrainScope One device is described as a "portable, non-invasive, non-radiation emitting, point of care device" that records and analyzes brain electrical activity directly from the patient's forehead. It does not analyze blood, urine, tissue, or other samples taken from the body.
- The intended use focuses on analyzing brain electrical activity (EEG) and providing measures related to brain function and cognitive performance. This is a direct measurement of physiological activity, not an analysis of a biological sample.
Therefore, the BrainScope One falls under the category of a medical device that interacts directly with the patient, rather than an IVD which analyzes samples.
No
The "Control Plan Authorized (PCCP) and relevant text" section explicitly states "Not Found," indicating that the letter does not mention FDA review, approval, or clearance of a PCCP for this device.
Intended Use / Indications for Use
· BrainScope One is indicated for use as an adjunct to standard clinical practice to aid in the evaluation of patients who are being considered for a head CT, who sustained a closed head injury within 72 hours, present with a Glasgow Coma Scale score (GCS) of 13-15 (including concussion / mild Traumatic Brain Injury (mTBI)), and are between the ages of 18-85 years. The BrainScope One should not be used as a substitute for a CT scan.
· The BrainScope One device is intended to record, measure, analyze, and display brain electrical activity utilizing the calculation of standard quantitative EEG (QEEG) parameters from frontal locations on a patient's forehead. The BrainScope One calculates and displays for the following standard QEEG measures: Absolute and Relative Power, Asymmetry, Coherence and Fractal Dimension. These raw measures are intended to be used for post hoc analysis of EEG signals for interpretation by a qualified user.
· A negative BrainScope One Structural Injury Classification using brain electrical activity in patients who sustained a closed head injury within 72 hours, likely corresponds to those with no structural brain injury visible on head CT.
· A positive BrainScope One Structural Injury Classification using brain electrical activity in patients who sustained a closed head injury within 72 hours, likely corresponds to those with a structural brain injury visible on head CT.
· An equivocal BrainScope One Structural Injury Classification using brain electrical activity in patients who sustained a closed head injury within 72 hours, may correspond to structural brain injury visible on head CT or may indicate the need for further observation or evaluation.
· The BrainScope One provides a measure of brain function (EEG Brain Function Index, (BFI)) for the statistical evaluation of the human electroencephalogram (EEG).
· BrainScope One also provides clinicians with quantitative measures of cognitive performance to aid in the assessment of an individual's level of cognitive function. These measures do not interact with any other device measures, and are stand alone.
· BrainScope One also stores and displays electronic of standardized clinical assessment tools that should be used in accordance with the assessment tools' general instructions. These tools do not interact with any other device measures, and are stand alone.
Product codes
PIW, PKQ, OLU
Device Description
BrainScope One is a portable, non-invasive, non-radiation emitting, point of care device intended to provide results and measures to support clinical assessments and aid in the diagnosis of traumatic brain injury (TBI). It also contains configurable, selectable cognitive performance tests and digitized standard assessment forms intended to provide a panel of measures to support the clinical assessment of head injury. BrainScope One provides healthcare professionals with a set of well-developed and researched concussion assessment tools.
Mentions image processing
Not Found
Mentions AI, DNN, or ML
Not Found
Input Imaging Modality
Not Found
Anatomical Site
frontal locations on a patient's forehead
Indicated Patient Age Range
18-85 years
Intended User / Care Setting
Not Found
Description of the training set, sample size, data source, and annotation protocol
Not Found
Description of the test set, sample size, data source, and annotation protocol
Not Found
Summary of Performance Studies (study type, sample size, AUC, MRMC, standalone performance, key results)
No clinical or non-clinical performance data was submitted to support the device modification being made. All clinical performance data from the Ahead 300 (predicate) submission still apply.
Key Metrics (Sensitivity, Specificity, PPV, NPV, etc.)
Not Found
Predicate Device(s)
Ahead 300 (K161068)
Reference Device(s)
Not Found
Predetermined Change Control Plan (PCCP) - All Relevant Information
Not Found
§ 882.1450 Brain injury adjunctive interpretive electroencephalograph assessment aid.
(a)
Identification. A brain injury adjunctive interpretive electroencephalograph assessment aid is a prescription device that uses a patient's electroencephalograph (EEG) to provide an interpretation of the structural condition of the patient's brain in the setting of trauma. A brain injury adjunctive interpretive EEG assessment aid is for use as an adjunct to standard clinical practice only as an assessment aid for a medical condition for which there exists other valid methods of diagnosis.(b)
Classification. Class II (special controls). The special controls for this device are:(1) The technical parameters of the device, hardware and software, must be fully characterized and include the following information:
(i) Hardware specifications must be provided. Appropriate verification, validation, and hazard analysis must be performed.
(ii) Software, including any proprietary algorithm(s) used by the device to arrive at its interpretation of the patient's condition, must be described in detail in the software requirements specification (SRS) and software design specification (SDS). Appropriate software verification, validation, and hazard analysis must be performed.
(2) The device parts that contact the patient must be demonstrated to be biocompatible.
(3) The device must be designed and tested for electrical safety, electromagnetic compatibility (EMC), thermal, and mechanical safety.
(4) Clinical performance testing must demonstrate the accuracy, precision-repeatability and reproducibility, of determining the EEG-based interpretation, including any specified equivocal zones (cutoffs).
(5) Clinical performance testing must demonstrate the ability of the device to function as an assessment aid for the medical condition for which the device is indicated. Performance measures must demonstrate device performance characteristics per the intended use in the intended use environment. Performance measurements must include sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) with respect to the study prevalence per the device intended use.
(6) The device design must include safeguards to ensure appropriate clinical interpretation of the device output (
e.g., use in appropriate patient population, or for appropriate clinical decision).(7) The labeling and training information must include:
(i) A warning that the device is not to be used as a stand-alone diagnostic.
(ii) A detailed summary of the clinical performance testing, including any adverse events and complications.
(iii) The intended use population and the intended use environment.
(iv) Any instructions technicians should convey to patients regarding the collection of EEG data.
(v) Information allowing clinicians to gauge clinical risk associated with integrating the EEG interpretive assessment aid into their diagnostic pathway.
(vi) Information allowing clinicians to understand how to integrate the device output into their diagnostic pathway when the device is unable to provide a classification or final result.
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Image /page/0/Picture/0 description: The image contains the logo of the U.S. Food and Drug Administration (FDA). The logo consists of two parts: the Department of Health & Human Services logo on the left and the FDA logo on the right. The FDA logo features the letters "FDA" in a blue square, followed by the words "U.S. FOOD & DRUG ADMINISTRATION" in blue text.
BrainScope Company Inc. Michael Singer CEO 4350 East West Hwy. Ste 1050 Bethesda, Maryland 20814
May 18, 2018
Re: K181179
Trade/Device Name: BrainScope One Regulation Number: 21 CFR 882.1450 Regulation Name: Brain Injury Adjunctive Interpretive Electroencephalograph Assessment Aid Regulatory Class: Class II Product Code: PIW, PKQ, OLU Dated: May 2, 2018 Received: May 2, 2018
Dear Michael Singer:
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 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 of medical device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in the quality systems (OS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
1
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 http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.
For comprehensive regulatory information about medical devices and radiation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/MedicalDevices/DeviceRegulationandGuidance/) and CDRH Learn (http://www.fda.gov/Training/CDRHLearn). 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 (http://www.fda.gov/DICE) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely,
Michael J. Hoffmann -S
for
Carlos L. Peña, PhD, MS Director Division of Neurological and Physical Medicine Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
2
Indications for Use
510(k) Number (if known) K181179
Device Name BrainScope One
Indications for Use (Describe)
· BrainScope One is indicated for use as an adjunct to standard clinical practice to aid in the evaluation of patients who are being considered for a head CT, who sustained a closed head injury within 72 hours, present with a Glasgow Coma Scale score (GCS) of 13-15 (including concussion / mild Traumatic Brain Injury (mTBI)), and are between the ages of 18-85 years. The BrainScope One should not be used as a substitute for a CT scan.
· The BrainScope One device is intended to record, measure, analyze, and display brain electrical activity utilizing the calculation of standard quantitative EEG (QEEG) parameters from frontal locations on a patient's forehead. The BrainScope One calculates and displays for the following standard QEEG measures: Absolute and Relative Power, Asymmetry, Coherence and Fractal Dimension. These raw measures are intended to be used for post hoc analysis of EEG signals for interpretation by a qualified user.
· A negative BrainScope One Structural Injury Classification using brain electrical activity in patients who sustained a closed head injury within 72 hours, likely corresponds to those with no structural brain injury visible on head CT.
· A positive BrainScope One Structural Injury Classification using brain electrical activity in patients who sustained a closed head injury within 72 hours, likely corresponds to those with a structural brain injury visible on head CT.
· An equivocal BrainScope One Structural Injury Classification using brain electrical activity in patients who sustained a closed head injury within 72 hours, may correspond to structural brain injury visible on head CT or may indicate the need for further observation or evaluation.
· The BrainScope One provides a measure of brain function (EEG Brain Function Index, (BFI)) for the statistical evaluation of the human electroencephalogram (EEG).
· BrainScope One also provides clinicians with quantitative measures of cognitive performance to aid in the assessment of an individual's level of cognitive function. These measures do not interact with any other device measures, and are stand alone.
· BrainScope One also stores and displays electronic of standardized clinical assessment tools that should be used in accordance with the assessment tools' general instructions. These tools do not interact with any other device measures, and are stand alone.
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.
3
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Image /page/4/Picture/0 description: The image shows the logo for BrainScope. The logo is in blue and features the word "BrainScope" in a stylized font. There are two horizontal lines under the word. The registered trademark symbol is to the right of the word.
4350 East-West Highway.Suite 1050.Bethesda.Maryland.20814
510(k) SUMMARY1
| Submitter: | BrainScope® Company, Inc.
4350 East West Highway Suite #1050
Bethesda, MD 20814
Phone: (240) 752-7680
Fax: (240) 752-7679
www.brainscope.com |
|-----------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Contact: | Michael E. Singer, Ph.D.
Chief Executive Officer
BrainScope Company, Inc.
Phone: (240) 752-7677
Fax: (240) 752-7679
Email: michael.singer@brainscope.com |
| Prepared By: | Sabyasachi Roy, Ph.D.
Director Regulatory Affairs, Quality Assurance
Compliance |
| Device Proprietary Name: | BrainScope One |
| Device Common Name: | Brain Injury Adjunctive Interpretive
Electroencephalograph Assessment Aid |
| Device Classification Name: | Brain Injury Adjunctive Interpretive
Electroencephalograph Assessment Aid |
| Classification Regulation: | 21 CFR § 882.1450 |
| Panel: | Neurology |
| Product Codes: | PIW, PKQ, OLU |
| Predicate Device: | Ahead 300 (K161068) |
1 Prepared in accordance with 21 CFR § 807.87(h) and 21 CFR § 807.92(c). BrainScope One 510(k) Summary
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Image /page/5/Picture/0 description: The image shows the word "BrainScope" in blue font. There are two horizontal lines above and below the word. The "O" in scope has a brainwave image in the middle of it. There is a registered trademark symbol to the right of the word.
Device Description:
BrainScope One is a portable, non-invasive, non-radiation emitting, point of care device intended to provide results and measures to support clinical assessments and aid in the diagnosis of traumatic brain injury (TBI). It also contains configurable, selectable cognitive performance tests and digitized standard assessment forms intended to provide a panel of measures to support the clinical assessment of head injury. BrainScope One provides healthcare professionals with a set of well-developed and researched concussion assessment tools.
Indications for Use:2
The BrainScope One's Indications for Use are as follows:
- BrainScope One is indicated for use as an adjunct to standard clinical practice to . aid in the evaluation of patients who are being considered for a head CT, who sustained a closed head injury within 72 hours, present with a Glasgow Coma Scale score (GCS) of 13-15 (including concussion / mild Traumatic Brain Injury (mTBI)), and are between the ages of 18-85 years. BrainScope One should not be used as a substitute for a CT scan.
- . The BrainScope One device is intended to record, measure, analyze, and display brain electrical activity utilizing the calculation of standard quantitative EEG (QEEG) parameters from frontal locations on a patient's forehead. The BrainScope One calculates and displays raw measures for the following standard QEEG measures: Absolute and Relative Power, Asymmetry, Coherence and Fractal Dimension. These raw measures are intended to be used for post hoc analysis of EEG signals for interpretation by a qualified user.
- A negative BrainScope One Structural Injury Classification using brain electrical . activity in patients who sustained a closed head injury within 72 hours, likely corresponds to those with no structural brain injury visible on head CT.
- . A positive BrainScope One Structural Injury Classification using brain electrical activity in patients who sustained a closed head injury within 72 hours, likely corresponds to those with a structural brain injury visible on head CT.
- An equivocal BrainScope One Structural Injury Classification using brain electrical . activity in patients who sustained a closed head injury within 72 hours, may correspond to structural brain injury visible on head CT or may indicate the need for further observation or evaluation.
- BrainScope One provides a measure of brain function (EEG Brain Function Index, .
2 The differences between the BrainScop One and its predicate (Ahead 300) do not alter the intended use of the device nor do they affect the safety and effectiveness of the device relative to the predicates. The subject and predicate devices have the same overall intended use.
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Image /page/6/Picture/0 description: The image shows the BrainScope logo. The logo is in blue and features the word "BrainScope" in a stylized font. The "S" in "Scope" is designed to look like a brainwave. There is a horizontal line above the word "Brain" and below the word "Scope". There is a registered trademark symbol to the right of the word "Scope".
(BFI)) for the statistical evaluation of the human electroencephalogram (EEG).
- BrainScope One also provides clinicians with quantitative measures of cognitive . performance to aid in the assessment of an individual's level of cognitive function. These measures do not interact with any other device measures, and are stand alone.
- . BrainScope One also stores and displays electronic versions of standardized clinical assessment tools that should be used in accordance with the assessment tools' general instructions. These tools do not interact with any other device measures, and are stand alone.
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Image /page/7/Picture/0 description: The image shows the BrainScope logo. The logo is in blue and features the word "BrainScope" in a stylized font. There are two horizontal lines above and below the word. The "o" in "Scope" is replaced with a brainwave symbol. There is a registered trademark symbol to the right of the word.
Table 1: Indications for Use Comparison to Predicate devices
| Proposed Device:
BrainScope One
(K# Not Yet Assigned) | Predicate:
Ahead 300
(K161068) | Comments |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------|
| BrainScope One is indicated for
use as an adjunct to standard
clinical practice to aid in the
evaluation of patients who are
being considered for a head CT,
who sustained a closed head
injury within 72 hours, present
with a Glasgow Coma Scale
score (GCS) of 13-15 (including
concussion / mild Traumatic
Brain Injury (mTBI)), and are
between the ages of 18-85
years. BrainScope One should
not be used as a substitute for a
CT scan. | The Ahead 300 is indicated for
use as an adjunct to standard
clinical practice to aid in the
evaluation of patients who are
being considered for a head
CT, who sustained a closed
head injury within 72 hours,
present with a Glasgow Coma
Scale score (GCS) of 13-15,
and are between the ages of
18-85 years. The BrainScope
One should not be used as a
substitute for a CT scan. | Equivalent. Additional
clarification in
BrainScope One IFU to
accommodate use of
"concussion", "mTBI"
across academia, DoD,
CDC and FDA. |
| The BrainScope One device is
intended to record, measure,
analyze, and display brain
electrical activity utilizing the
calculation of standard
quantitative EEG (QEEG)
parameters from frontal locations
on a patient's forehead. The
BrainScope One calculates and
displays raw measures for the
following standard QEEG
measures: Absolute and
Relative Power, Asymmetry,
Coherence and Fractal
Dimension. These raw measures
are intended to be used for post
hoc analysis of EEG signals for
interpretation by a qualified user. | The Ahead 300 device is
intended to record, measure,
analyze, and display brain
electrical activity utilizing the
calculation of standard
quantitative EEG (QEEG)
parameters from frontal
locations on a patient's
forehead. The BrainScope One
calculates and displays raw
measures for the following
standard QEEG measures:
Absolute and Relative Power,
Asymmetry, Coherence and
Fractal Dimension. These raw
measures are intended to be
used for post hoc analysis of
EEG signals for interpretation
by a qualified user. | Same |
| A negative BrainScope One
Structural Injury Classification
using brain electrical activity in
patients who sustained a closed
head injury within 72 hours,
likely corresponds to those with
no structural brain injury visible
on head CT. | A negative Ahead 300
Structural Injury Classification
using brain electrical activity in
patients who sustained a
closed head injury within 72
hours, likely corresponds to
those with no structural brain
injury visible on head CT. | Same |
| A positive BrainScope One
Structural Injury Classification
using brain electrical activity in
patients who sustained a closed | A positive Ahead 300 Structural
Injury Classification using brain
electrical activity in patients
who sustained a closed head | Same |
| Proposed Device:
BrainScope One
(K# Not Yet Assigned) | Predicate:
Ahead 300
(K161068) | Comments |
| head injury within 72 hours,
likely corresponds to those with
a structural brain injury visible on
head CT. | injury within 72 hours, likely
corresponds to those with a
structural brain injury visible on
head CT. | |
| An equivocal BrainScope One
Structural Injury Classification
using brain electrical activity in
patients who sustained a closed
head injury within 72 hours, may
correspond to structural brain
injury visible on head CT or may
indicate the need for further
observation or evaluation. | An equivocal Ahead 300
Structural Injury Classification
using brain electrical activity in
patients who sustained a
closed head injury within 72
hours, may correspond to
structural brain injury visible on
head CT or may indicate the
need for further observation or
evaluation. | Same |
| BrainScope One provides a
measure of brain function (EEG
Brain Function Index, (BFI)) for
the statistical evaluation of the
human electroencephalogram
(EEG). | The Ahead 300 provides a
measure of brain function (EEG
Brain Function Index, (BFI)) for
the statistical evaluation of the
human electroencephalogram
(EEG). | Same |
| BrainScope One also provides
clinicians with quantitative
measures of cognitive
performance to aid in the
assessment of an individual's
level of cognitive function. These
measures do not interact with
any other device measures, and
are stand alone. | The Ahead 300 also provides
clinicians with quantitative
measures of cognitive
performance to aid in the
assessment of an individual's
level of cognitive function.
These measures do not interact
with any other device
measures, and are stand alone. | Same |
| BrainScope One also stores and
displays electronic versions of
standardized clinical assessment
tools that should be used in
accordance with the assessment
tools' general instructions. These
tools do not interact with any
other device measures, and are
stand alone. | The Ahead 300 also stores and
displays electronic versions of
standardized clinical
assessment tools that should
be used in accordance with the
assessment tools' general
instructions. These tools do not
interact with any other device
measures, and are stand alone. | Equivalent. The
BrainScope One
contains an expanded
number of standard
clinical assessment
tools (library functions). |
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Image /page/8/Picture/0 description: The image shows the BrainScope logo. The logo is in blue and features the word "BrainScope" in a stylized font. There are lines above and below the word. The letter "C" in scope is stylized to look like a brainwave.
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Image /page/9/Picture/0 description: The image shows the BrainScope logo. The logo is in blue and features the word "BrainScope" in a stylized font. There are lines above and below the word. The "O" in scope is replaced with a brainwave graphic. There is a registered trademark symbol to the right of the word.
Comparison of Technological Characteristics with the Predicate Device:
BrainScope One incorporates additional clarification in the Indications for Use statement of its predicate (Ahead 300) to accommodate widely accepted definitions for "concussion" and "mild Traumatic Brain Injury (mTBI)". The core capabilities of BrainScope One and its fundamental scientific technology remain unaltered compared to the Ahead 300 (predicate). The device modifications discussed do not alter the BrainScope One's safety or effectiveness and neither do they change its intended use compared to the Ahead 300 (predicate). BrainScope One is substantially equivalent to the predicate the Ahead 300.
| Topic / Area | Proposed Device:
BrainScope One | Primary Predicate:
Ahead 300 | Comments |
|---------------------------------------------|------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------|----------|
| Platform | Trimble T41 mobile
device, Android OS | Trimble T41 mobile
device, Android OS | Same |
| Processed
EEG
Bandwidth | 1kHz sampled data
with DC to 300Hz
bandwidth and 100Hz
sampled data with
0.67Hz to 43Hz
bandwidth | 1kHz sampled data with
DC to 300Hz bandwidth
and 100Hz sampled
data with 0.67Hz to
43Hz bandwidth | Same |
| Common
Mode
Rejection
Ratio (CMRR) |