K Number
K971501
Device Name
SLEEPSCAN AIRFLOW PRESSURE TRANSDUCER
Date Cleared
1997-10-14

(173 days)

Product Code
Regulation Number
868.2375
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP Authorized
Intended Use
The Bio-logic Airflow Pressure Transducer is intended for use in sleep disorder studies to detect respiratory airflow for recording onto a physiological recorder. It is battery-powered, using a single-use, disposable nasal cannula which attaches to the patient and plugs into the Airflow Pressure Transducer device. The cannula cannot be adequately cleaned for re-use. The outputs of the device provide low-level electrical signals for input to a physiological recorder (such as the Bio-logic Sleepscan product), The Bio-logic Airflow Pressure Transducer is indicated for use during sleep disorder studies to detect respiratory airflow for recording onto a physiological recorder. It is a battery-powered device, with a disposable nasal cannula which attaches to the patient and plugs into the Airflow Pressure Transducer device. The outputs of the device provide low-level voltage signals which are intended to be input to a physiological recorder (such as the Bio-logic Sleepscan product).
Device Description
The Bio-logic Airflow Pressure Transducer is a small interface device which converts low levels of air pressure to corresponding low levels of voltage which can be recorded on any physiological recorder intended to record low-level electrical signals. There is one pneumatic input for air pressure, and one set of electrical outputs representing the electrical equivalent of the pressure. These electrical outputs are: ACT (the active or positive output), REF (the reference or negative output), and COM (the electrical common). Within the device itself, the REF and COM are connected together. However, three leads are brought out for connection to a physiological recorder (such as the Bio-logic Sleepscan product), so the ACT and REF can be inputs to a differential amplifier, and COM can be connected to the system common. For the airflow pressure input, this device uses a disposable nasal cannula which attaches to the patient and connects to the pressure input labeled "NASAL CANNULA". The electrical outputs connect to the corresponding AC-coupled inputs of the system's patient connection module. For the Bio-logic Sleepscan system, the connection is made to one of the bipolar input channels on the electrode jack box labeled INI(A) & IN2(R), for ACT and REF respectively. The COM is connected to the common jack on the headbox. The jacks on both the interface device and the electrode jack box are 1.5mm "safety" jacks, and the electrical connections are made with a reusable wire set with "safety" plugs on both ends. This device consists of a two-part plastic enclosure measuring approximately 105 x 58 x 18.5 cm. The material is a composite of ABS and PMMA, color off-white. It is battery powered with two standard 1.5v AAA cells. The estimated battery life is 100 hours, and an on-off switch is provided for conserving battery life when the unit is not in use. Batteries can be replaced by removing two screws on the battery compartment of the unit.
More Information

Not Found

No
The device description focuses on converting air pressure to electrical signals and does not mention any computational processing, learning, or adaptive algorithms.

No.
The device is intended for detection and recording of respiratory airflow, not for treatment.

Yes

The device detects respiratory airflow and converts it into electrical signals for recording onto a physiological recorder during sleep disorder studies. This process is part of diagnosing sleep disorders by providing data for analysis.

No

The device description clearly details a physical hardware device with a plastic enclosure, battery power, pneumatic input, and electrical outputs. It converts air pressure to voltage signals, which is a hardware function.

Based on the provided text, the Bio-logic Airflow Pressure Transducer is not an In Vitro Diagnostic (IVD).

Here's why:

  • IVDs are used to examine specimens derived from the human body. The Bio-logic Airflow Pressure Transducer measures respiratory airflow directly from the patient via a nasal cannula. It does not analyze a biological sample (like blood, urine, or tissue) in a test tube or other in vitro setting.
  • The device measures a physiological parameter (airflow pressure). This is a direct measurement of a bodily function, not an analysis of a biological specimen.
  • The output is an electrical signal for a physiological recorder. This signal represents the measured airflow pressure, not the result of a diagnostic test performed on a specimen.

The device is clearly intended for use in sleep disorder studies to monitor a physiological parameter (respiratory airflow) in vivo.

N/A

Intended Use / Indications for Use

The Bio-logic Airflow Pressure Transducer is intended for use in sleep disorder studies to detect respiratory airflow for recording onto a physiological recorder. It is battery-powered, using a single-use, disposable nasal cannula which attaches to the patient and plugs into the Airflow Pressure Transducer device. The cannula cannot be adequately cleaned for re-use. The outputs of the device provide low-level electrical signals for input to a physiological recorder (such as the Bio-logic Sleepscan product).

The Bio-logic Airflow Pressure Transducer is indicated for use during sleep disorder studies to detect respiratory airflow for recording onto a physiological recorder. It is a battery-powered device, with a disposable nasal cannula which attaches to the patient and plugs into the Airflow Pressure Transducer device. The outputs of the device provide low-level voltage signals which are intended to be input to a physiological recorder (such as the Bio-logic Sleepscan product).

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

73 MNR

Device Description

The Bio-logic Airflow Pressure Transducer is a small interface device which converts low levels of air pressure to corresponding low levels of voltage which can be recorded on any physiological recorder intended to record low-level electrical signals. There is one pneumatic input for air pressure, and one set of electrical outputs representing the electrical equivalent of the pressure. These electrical outputs are: ACT (the active or positive output), REF (the reference or negative output), and COM (the electrical common). Within the device itself, the REF and COM are connected together. However, three leads are brought out for connection to a physiological recorder (such as the Bio-logic Sleepscan product), so the ACT and REF can be inputs to a differential amplifier, and COM can be connected to the system common.

For the airflow pressure input, this device uses a disposable nasal cannula which attaches to the patient and connects to the pressure input labeled "NASAL CANNULA". The electrical outputs connect to the corresponding AC-coupled inputs of the system's patient connection module. For the Bio-logic Sleepscan system, the connection is made to one of the bipolar input channels on the electrode jack box labeled INI(A) & IN2(R), for ACT and REF respectively. The COM is connected to the common jack on the headbox. The jacks on both the interface device and the electrode jack box are 1.5mm "safety" jacks, and the electrical connections are made with a reusable wire set with "safety" plugs on both ends.

This device consists of a two-part plastic enclosure measuring approximately 105 x 58 x 18.5 cm. The material is a composite of ABS and PMMA, color off-white. It is battery powered with two standard 1.5v AAA cells. The estimated battery life is 100 hours, and an on-off switch is provided for conserving battery life when the unit is not in use. Batteries can be replaced by removing two screws on the battery compartment of the unit.

Mentions image processing

Not Found

Mentions AI, DNN, or ML

Not Found

Input Imaging Modality

Not Found

Anatomical Site

Not Found

Indicated Patient Age Range

The Bio-logic Airflow Pressure Transducer can be used to monitor respiration for any patient who is a candidate for Sleep Diagnostic evaluation. This will typically be an adult population, but it can be used for patients of all ages.

It can be used for patients of all ages, from newborn infants through adults, to and including geriatric patients.

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)

Laboratory testing has been performed using this device in place of the predicate device for respiratory airflow monitoring. These tests conclude that the electrical signals recorded using the Bio-logic Airflow Pressure Transducer provide equivalent informational content to the signals recorded using the predicate device. In some instances, the specifications for the Airflow Pressure Transducer exceed those of 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.

K913396

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.

Not Found

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

§ 868.2375 Breathing frequency monitor.

(a)
Identification. A breathing (ventilatory) frequency monitor is a device intended to measure or monitor a patient's respiratory rate. The device may provide an audible or visible alarm when the respiratory rate, averaged over time, is outside operator settable alarm limits. This device does not include the apnea monitor classified in § 868.2377.(b)
Classification. Class II (performance standards).

0

OCT 1 4 1997

One Bio-logic Plaza Mundelein, Illinois 60060-3700 1-800-323-8326 Fax: 847-949-8615

SECTION 2: SUMMARY AND CERTIFICATION

510(K) SUMMARY

SAFETY AND EFFECTIVENESS SUMMARY

Safety and effectiveness information concerning this Airflow Sensor device is summarized below.

Because this is not a CLASS III device, the special certification defined for this section is not required.

Bio-logic Systems Corp PREPARED BY: One Bio-logic Plaza Mundelein, IL 60060

(847)-949-5200 TELEPHONE:

  • CONTACT PERSON: Norman E. Brunner
    DATE ON WHICH THE SUMMARY WAS PREPARED: April 23, 1997

NAME OF DEVICE: Bio-logic SLEEPSCAN Airflow Pressure Transducer.

COMMON NAME: Respiration Monitor.

CLASSIFICATION NAME: Breathing Frequency Monitor (per CFR 868.1860)

PREDICATE DEVICE: Cannula-Style Thermocouple Airflow Sensor, Pro-Tech, Inc., 510(k) #K913396.

DESCRIPTION OF THE DEVICE:

The Bio-logic Airflow Pressure Transducer is a small interface device which converts low levels of air pressure to corresponding low levels of voltage which can be recorded on any physiological recorder intended to record low-level electrical signals. There is one pneumatic input for air pressure, and one set of electrical outputs representing the electrical equivalent of the pressure. These electrical outputs are: ACT (the active or positive output), REF (the reference or negative output), and COM (the electrical common). Within the device itself, the REF and COM are connected together. However, three leads are brought out for connection to a physiological recorder (such as the Bio-logic Sleepscan product), so the ACT and REF can be inputs to a differential amplifier, and COM can be connected to the system common.

1

For the airflow pressure input, this device uses a disposable nasal cannula which attaches to the patient and connects to the pressure input labeled "NASAL CANNULA". The electrical outputs connect to the corresponding AC-coupled inputs of the system's patient connection module. For the Bio-logic Sleepscan system, the connection is made to one of the bipolar input channels on the electrode jack box labeled INI(A) & IN2(R), for ACT and REF respectively. The COM is connected to the common jack on the headbox. The jacks on both the interface device and the electrode jack box are 1.5mm "safety" jacks, and the electrical connections are made with a reusable wire set with "safety" plugs on both ends.

This device consists of a two-part plastic enclosure measuring approximately 105 x 58 x 18.5 cm. The material is a composite of ABS and PMMA, color off-white. It is battery powered with two standard 1.5v AAA cells. The estimated battery life is 100 hours, and an on-off switch is provided for conserving battery life when the unit is not in use. Batteries can be replaced by removing two screws on the battery compartment of the unit.

INTENDED USE:

The Bio-logic Airflow Pressure Transducer is intended for use in sleep disorder studies to detect respiratory airflow for recording onto a physiological recorder. It is battery-powered, using a single-use, disposable nasal cannula which attaches to the patient and plugs into the Airflow Pressure Transducer device. The cannula cannot be adequately cleaned for re-use. The outputs of the device provide low-level electrical signals for input to a physiological recorder (such as the Bio-logic Sleepscan product),

PATIENT POPULATION:

The Bio-logic Airflow Pressure Transducer can be used to monitor respiration for any patient who is a candidate for Sleep Diagnostic evaluation. This will typically be an adult population, but it can be used for patients of all ages.

SAFETY AND EFFECTIVENESS:

The maximum voltage within the Bio-logic Airflow Pressure Transducer is 3 volts DC, based on the use of two 1.5 volt AAA batteries connected in series. There is no direct electrical connection to the patient, since the airflow pressure input uses an approved nasal cannula made of non-conducting plastic. The maximum output voltage is +/- 150 mV, with an output signal range corresponding to normal breathing of +/- 1 mV Therefore, there is no danger to the patient of serious injury due to electrical shock.

Laboratory testing has been performed using this device in place of the predicate device for respiratory airflow monitoring. These tests conclude that the electrical signals recorded using the Bio-logic Airflow Pressure Transducer provide equivalent informational content to the signals recorded using the predicate device. In some instances, the specifications for the Airflow Pressure Transducer exceed those of the predicate device. These areas are clarified in more detail in the following section.

2

The following comparison is provided as a summary of technological characteristics relative to the predicate device. This is to demonstrate that the Bio-logic Airflow Pressure Transducer has no significant differences from the predicate device which would adversely affect product safety and effectiveness.

Parameter for ComparisonSimilarity or Difference
Intended UseNo differences.
PopulationNo differences.
Power SourceThis device uses 2 AAA batteries. The predicate
device does not require batteries.
Number of ChannelsThis device provides one input channel; the predicate
device provides two.
Method of Connection to PatientThis device uses a plastic tubing and cannula
set for patient connection. There are no wires or
other metal parts connected to the patient. The
predicate device sensor assembly also attaches to the
patient in a manner similar to a cannula.
Safety CharacteristicsBoth devices provide for patient isolation because
there is no direct connection of wires to the patient in
either case. The predicate device uses an insulated
thermocouple assembly; the subject device uses plastic
tubing. Both devices connect to the Sleepscan patient
connection module using approved safety jacks.
Re-use RestrictionsCleaning and disinfecting procedures are required for
reuse of the thermocouple predicate device. The
subject device is for single-use only.
Sensor TechnologyThe subject device uses a solid-state pressure
transducer which converts small changes in air
pressure into small voltage changes. The predicate
device uses an electrical thermocouple which converts
temperature changes caused by the airflow into small
voltage changes.

3

Image /page/3/Picture/2 description: The image shows the seal of the U.S. Department of Health & Human Services. The seal features a stylized caduceus-like symbol with three parallel lines curving upwards. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" is arranged in a circular fashion around the symbol. The seal is black and white.

Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850

OCT 1 4 1997

Mr. Norman E. Brunner Bio-Logic Systems Corporation One Bio-logic Plaza Mundelein, Illinois 60060-3700

Re: K971501 Bio-logic Airflow Pressure Transducer Regulatory Class: II (two) Product Code: 73 MNR Dated: July 17, 1997 Received: July 18, 1997

Dear Mr. Brunner:

We have reviewed your Section 510(k) notification of intent to market the device referenced above and we have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to 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). 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.

If your device is classified (see above) into either class II (Special Controls) or class III (Premarket Approval), it may be subject to such additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 895. A substantially equivalent determination assumes compliance with the current Good Manufacturing Practice requirements, as set forth in the Quality System Regulation (QS) for Medical Devices: General regulation (21 CFR Part 820) and that, through periodic (QS) inspections, the Food and Drug Administration (FDA) will verify such Failure to comply with the GMP regulation may result in assumptions. regulatory action. In addition, FDA may publish further announcements concerning your device in the Federal Register. Please note: this response to your premarket notification submission does not affect any obligation you might have under sections 531 through 542 of the Act for devices under the Electronic Product Radiation Control provisions, or other Federal laws or regulations.

4

Page 2 - Mr. Norman E. Brunner

This letter will allow you to begin marketing your device as described in your 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus, permits your device to proceed to the market.

If you desire specific advice for your device on our labeling regulation (21 CFR Part 801 and additionally 809.10 for in vitro diagnostic devices), please contact the Office of Compliance at (301) 594-4648. Additionally, for questions on the promotion and advertising of your device, please contact the Office of Compliance at (301) 594-4639. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 807.97). Other general information on your responsibilities under the Act may be obtained from the Division of Small Manufacturers Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its internet address "http://www.fda.gov/cdrh/dsmamain.html".

Sincerely yours,
Thomas J. Callahan

Thomas J. Callahan, Ph.D. Director Division of Cardiovascular and Respiratory Devices Office of Device Evaluation Center for Devices and Radiological Health

Enclosure

5

INDICATIONS FOR USE STATEMENT

510(k) Number (if known):

Not Assigned

Device Name: BIO-LOGIC AIRFLOW PRESSURE TRANSDUCER FOR SLEEPSCAN PRODUCT

Indications For Use:

The Bio-logic Airflow Pressure Transducer is indicated for use during sleep disorder studies to detect respiratory airflow for recording onto a physiological recorder. It is a battery-powered device, with a disposable nasal cannula which attaches to the patient and plugs into the Airflow Pressure Transducer device. The outputs of the device provide low-level voltage signals which are intended to be input to a physiological recorder (such as the Bio-logic Sleepscan product).

It can be used for patients of all ages, from newborn infants through adults, to and including geriatric patients.

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Concurrence of CDRH, Office of Device Evaluation (ODE)

  • M. Pury

(Division Sign-Off)
Division of Cardiovascular, Respiratory,
and Neurological Devices
510(k) Number K971501

Prescription Use
(Per 21 CFR 801.109)

OR

Over-The-Counter Use _________________________________________________________________________________________________________________________________________________________

(Optional Format 1-2-96) -