K Number
K990809
Device Name
CADISCOPE ELECTRONIC STETHOSCOPE
Manufacturer
Date Cleared
1999-06-09

(90 days)

Product Code
Regulation Number
870.1875
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP Authorized
Intended Use
The CADIscope is a patented electronic stethoscope with an integrated graphics display to show the amplified heart sounds as phonocardiograms and show parallel to the heart sounds the ECG in an Einthoven Triangle. It is intended for use as a diagnostic aid as part of a physical assessment of a patient by health care professionals or other individuals trained to administer emergency first aid or otherwise care for a patient. It can be used for the amplification of heart, lung, blood vessel, enteral and other body sounds. When the device's integral electrodes are placed on the chest of the patient, it is capable of verifying the existence of cardiac biopotential activity. The quality of the biopotential activity display depends upon user technique and environmental conditions and it is in no way meant to be diagnostic.
Device Description
The CADIscope is a patented electronic stethoscope with an integrated graphics display to show the amplified heart sounds as phonocardiograms and show parallel to the heart sounds the ECG in a standard Einthoven Triangle.
More Information

Not Found

No
The summary describes a device that amplifies sounds and displays phonocardiograms and ECGs. There is no mention of any analytical or interpretive functions that would typically involve AI/ML, nor are there sections describing training or test data sets which are characteristic of AI/ML development.

No
The device is described as a "diagnostic aid" and an "amplification device" for body sounds, with the ability to "verify the existence of cardiac biopotential activity", but explicitly states the display is "in no way meant to be diagnostic" and it does not provide any therapeutic intervention.

Yes
The "Intended Use / Indications for Use" section explicitly states, "It is intended for use as a diagnostic aid."

No

The device description explicitly states it is an "electronic stethoscope with an integrated graphics display" and mentions "integral electrodes," indicating it includes hardware components beyond just software.

Based on the provided information, the CADIscope is not an In Vitro Diagnostic (IVD) device.

Here's why:

  • IVD Definition: In Vitro Diagnostics are devices used to examine specimens (like blood, urine, or tissue) taken from the human body to provide information about a person's health. This testing is done outside of the body (in vitro).
  • CADIscope Function: The CADIscope is used to amplify and display sounds and electrical activity directly from the patient's body (in vivo). It listens to heart, lung, and other body sounds and detects cardiac biopotential activity through electrodes placed on the chest.
  • Intended Use: The intended use describes it as a diagnostic aid as part of a physical assessment, focusing on listening to body sounds and verifying cardiac biopotential activity. This is a direct interaction with the patient's body, not the analysis of a specimen.

Therefore, the CADIscope falls under the category of a medical device used for direct patient assessment, not an In Vitro Diagnostic device.

N/A

Intended Use / Indications for Use

The CADIscope is a patented electronic stethoscope with an integrated graphics display to show the amplified heart sounds as phonocardiograms and show parallel to the heart sounds the ECG in an Einthoven Triangle.

It is intended for use as a diagnostic aid as part of a physical assessment of a patient by health care professionals or other individuals trained to administer emergency first aid or otherwise care for a patient.

It can be used for the amplification of heart, lung, blood vessel, enteral and other body sounds. When the device's integral electrodes are placed on the chest of the patient, it is capable of verifying the existence of cardiac biopotential activity. The quality of the biopotential activity display depends upon user technique and environmental conditions and it is in no way meant to be diagnostic.

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

DQD (870.1875)

Device Description

The CADIscope is a patented electronic stethoscope with an integrated graphics display to show the amplified heart sounds as phonocardiograms and show parallel to the heart sounds the ECG in a standard Einthoven Triangle.

Mentions image processing

Not Found

Mentions AI, DNN, or ML

Not Found

Input Imaging Modality

Not Found

Anatomical Site

Chest (for electrodes)

Indicated Patient Age Range

Not Found

Intended User / Care Setting

health care professionals or other individuals trained to administer emergency first aid or otherwise care for a patient.

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)

Not Found

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.

K961301, K954066

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

§ 870.1875 Stethoscope.

(a)
Manual stethoscope —(1)Identification. A manual stethoscope is a mechanical device used to project the sounds associated with the heart, arteries, and veins and other internal organs.(2)
Classification. Class I (general controls). The device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 870.9.(b)
Electronic stethoscope —(1)Identification. An electronic stethoscope is an electrically amplified device used to project the sounds associated with the heart, arteries, and veins and other internal organs.(2)
Classification. Class II (special controls). The device, when it is a lung sound monitor, is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 870.9.

0

K990809

CH-6343 Rotkreuz-Zug, Switzerland Phone xx41-41-79 80 120 Fax xx41-41-79 80 133

SUMMARY OF SAFETY AND EFFECTIVENESS 12.

1 February, 1999

  • SUBMITTER/APPLICANT COMPANY INFORMATION 1. Registration #: None CADItec AG. EURO 1 Rotkreuz-Zug Switzerland, CH6343 Phone : xx41-41-79 80 120 Fax : xx41-41-79 80 133 Email : sales@caditec.com Contact Person: Fridolin Voegeli Contact Title: President
  • SUBMISSION CORRESPONDENT 2. Medline Industries, Inc. One Medline Place Mundelein. IL 60060 Registration #: 1417592 (847) 949-5500 x1131 Phone: (847) 949-2643 Fax: Contact Name: Christine M. Galea, Submission Correspondent
REGULATORY INFORMATION:
DEVICE NAME:Stethoscope, Electronic
PROPRIETARY NAME:CADIscope Electronic Stethoscope with Integrated ECG
COMMON NAME:Electronic Stethoscope
CLASS:II
PRO CODE:DQD (870.1875)
PERFORMANCE STANDARDS:None
    1. DEVICE DESCRIPTION: The CADIscope is a patented electronic stethoscope with an integrated graphics display to show the amplified heart sounds as phonocardiograms and show parallel to the heart sounds the ECG in a standard Einthoven Triangle.
    1. INTENDED USE: It is intended for use as a diagnostic aid as part of a physical assessment of a patient by health care professionals or other individuals trained to administer emergency first aid or otherwise care for a patient.

It can be used for the amplification of heart, lung, blood vessel, enteral and other body sounds. When the device's integral electrodes are placed on the chest of the patient, it is capable of verifying the existence of cardiac biopotential activity. The quality of the biopotential activity display depends upon user technique and environmental conditions and it is in no way meant to be diagnostic.

1

Image /page/1/Picture/0 description: The image shows the word "CADltec" in a bold, sans-serif font. The letters "C", "A", "D", and "I" are capitalized, while "tec" is in lowercase. A horizontal line made of small squares runs beneath the word, adding a visual element to the design. The overall impression is a logo or branding element, possibly for a technology-related company.

CH-6343 Rotkreuz-Zug, Switzerland Phone xx41-41-79 80 120 Fax xx41-41-79 80 133

  • SUBSTANTIAL EQUIVALENCE: The CADIscope, with it's sound channel, is substantially 6. equivalent to other electronic stethoscopes on the market. CADIscope claims for it's sound channel, substantial equivalence to the E-Scope Electronic Stethoscope Model 718-7120, K961301 manufactured by Cardionics Inc., 1100 Hercules Ave, Suite 210, Houston, 77058 TX.
    The CADIscope, with it's ECG display, is substantially equivalent to other small portable electrocardiographs on the market. CADIscope claims for it's ECG display, substantial equivalence to the Miniscope MS-3, Electrocardiograph, K954066, manufactured by Schiller AG, Altgasse 68, CH-6340 Baar, Switzerland.

  • COMPARISON TO PREDICATE DEVICE: The CADIscope is similar to the E-Scope in 7. that they both are electronic stethoscopes that operate on batteries. Both stethoscopes work by amplifying and filtering the heart sounds and allowing the user of the device to adjust the volume in order to better hear the heart sounds.
    The CADIscope is different than the E-Scope in that it has a visual representation of the heart sounds (or the ECG) and the E-Scope does not. (And therefor the CADIscope contains a microprocessor and the E-Scope does not.)

The CADIscope is similar to the Miniscope MS-3 in that they both are battery operated portable monitors with 3 built-in electrodes to pick up the ECG in an Einthoven Triangle (or Tripode), in both devices the microprocessor optimizes the signal's amplitude and displays a 1-lead ECG on a LCD using similar resolution and base-line and noise filtering technology.

The CADIscope is different than the Miniscope MS-3 in that it does not have memory to store the (two) ECG signal's data over minutes to be played back on the internal LCD or to be transmitted to and analyzed by special ECG analysis programs on special cardiographs or PC's. The Miniscope MS-3 does also offer the possibility to connect an external patient cable with 3 or 5 leads, the CADIscope does not.

Predicate DevicesNew Device
CardionicsSchillerCADItec
CharacteristicE-Scope
Electronic StethoscopeMiniscope MS-3
ElectrocardiographCADIscope
Electronic Stethoscope
1 Intended usediagnostic aid, part of physical assessment of patient :
amplification of body soundsdiagnostic aid, part of physical
assessment of patient :
Display of ECGdiagnostic aid, part of physica
assessment of patient :
amplification of body sounds
2 Indicationsany time an assessment of a
patient's physical condition is
requiredany time an assessment of a
patient's physical condition is
requiredany time an assessment of a
patient's physical condition is
required
Predicate DevicesNew Device
CharacteristicCardionics
E-Scope
Electronic StethoscopeSchiller
Miniscope MS-3
ElectrocardiographCADItec
CADIscope
Electronic Stethoscope
3Environmentanywhereanywhereanywhere
4Personnel
requirementsindividuals that have had
medical or first aid training
with a stethoscope, plus
teachers, studentsphysicians, nurses, or allied
health professionals and their
studentsindividuals that have had
medical or first aid training
with a stethoscope
5Sound pickupscrew-on selectable :
  • diaphragm flat shape
  • bell shape | none | bell shape |
    | 6 | Microphone | subminiature back-electret
    microphone | none | subminiature back-electret
    microphone |
    | 7 | Sound
    amplification | electronic, analog amplifier, 0
  • 27 dB at 200 Hz, continuos | none | electronic: analog amplifier,
    0-35 dB, 16 levels 5 dB each |
    | 8 | Sound
    Operating
    modes | bell and diaphragm mode,
    heart and breast sound filter | none | Organ specific :
    heart, lungs, and entero filter |
    | 9 | Sound
    Frequency
    response | 2 filters :
    heart : 100-240 Hz
    (-900Hz@ -20dB)
    breast : 125-350 Hz.
    (-2000Hz@ -20dB) | none | 3 filters :
    heart: 15-600 Hz.
    lungs: 300-1500 Hz.
    Entero: 15-1500 Hz.
    (@ -20 dB) |
    | 10 | Sound speaker | 1 speaker, in control box | none | 2 earphones in the ear,
    reduced noise induction into
    binaurals |
    | 11 | Binaurals | short metal tubes | none | none |
    | 12 | On/Off controls | On switch
    Off time controlled by
    electronics | On switch
    Off time controlled by
    electronics | manual On
    Off time controlled by
    microprocessor |
    | 13 | Mode / filter /
    sound controls | mode switch > filters
    analog potentiometer for
    volume | none | mode switch > filters
  • / - switch for volume |
    | 14 | Technology | discrete electronics,
    integrated op amps | surface mount devices,
    digital signal processor | surface mount devices,
    mixed signal processor |
    | 15 | Power
    consumption | est 100 mW peak
    est 10 mW normal | est 250 mW | 30 mW peak
    5 uW sleep mode |
    | 16 | Batteries | 1 x 9V, Alkaline, 45 gr
    in control-box, 150 hours
    operation = ½ year normal
    operation | 2 x 1.5V, Alkaline, 20 grams
    12 hours operation | 3 x 1.5V, Alkaline, 30 grams
    in chestpiece, 160 hours
    operation = ½ year normal
    use |
    | 17 | Dimensions | overall length 84 cm
    total weight 250 grams | 77 x 126 x 20 mm
    total weight 250 grams | cord length 64 cm
    total weight 170 grams |
    | 18 | Display | none | LCD 64 x 192 pixels,
    graphics and status display | LCD 64 x 96 pixels,
    graphics and status display |
    | | | Predicate Devices | | New Device |
    | | Characteristic | Cardionics
    E-Scope
    Electronic Stethoscope | Schiller
    Miniscope MS-3
    Electrocardiograph | CADItec
    CADIscope
    Electronic Stethoscope |
    | 1
    9 | Phonocardio-
    gram
    visualization of
    sounds | no | no | yes, analog sound envelope
    on built-in display, 4 time-
    bases,
    with freeze function |
    | 2
    0 | Display of
    cardiac
    biopotentials | no | Built-in three-point electrode
    or 3 or 5 lead patient cable,
    display 1 lead, with freeze and
    playback | swiveling electrodes, forming
    Einthoven triangle,
    display time parallel to
    hearing, with freeze function |
    | 2
    1 | Role of micro-
    processor | none | switches modes, amplifi-
    cation, displays status
    controls | switches modes, amplifi-
    cation, displays status
    controls, displays and selects
    optimum scales |
    | 2
    2 | Signal storage | no | 30 min 1 lead ECG | no |
    | 2
    3 | Signal trans-
    mission to other
    persons or to
    PC | - option second headset
  • option cable for
    telemedicine over phone | Optional adapter with RS232
    and analog output | Optional analog output to
    hearing aides, second
    earphone |
    | 2
    4 | Infection control | | | cleaning and disinfection
    procedure in Operators'
    Manual |
    | 2
    5 | Materials in:
    chest contact | aluminum rings
    polycarbonate diaphragm | AgCl plated electrodes | AgCl plated electrodes |
    | 2
    6 | Storage | | Polycarbonate cover | Optional cushion bag |
    | 2
    7 | Alarms | none | none | none |
    | 2
    8 | Status display | none | Status-line shows heart rate,
    scale settings, battery low | status-line in display shows
    mode, "good" signal, "direct"
    heart rate, volume setting,
    battery low |
    | 2
    9 | Use with
    defibrillator | safety hazard | safety hazard | safety hazard |
    | 3
    0 | Source of user
    hazards | defibrillator; bio-hazard | defibrillator; bio-hazard | defibrillator; bio-hazard |
    | 3
    1 | Patient hazards | bio-hazard | bio-hazard | bio-hazard |
    | 3
    2 | Environmental
    hazards | none known | none known | none known |
    | | | | | |

2

Image /page/2/Picture/0 description: The image shows the logo for CADItec. The logo is in black and white and features the word "CADItec" in a stylized font. The letters "CADI" are in a larger, bolder font than the letters "tec". The "A" in "CADI" is stylized to look like a mountain peak. There is a dotted line underneath the word "CADItec".

CH-6343 Rotkrouz-Zug, Switzerland

3

Image /page/3/Picture/0 description: The image shows the logo for CADItec. The logo is in black and white, with the letters "CADItec" in a bold, sans-serif font. A jagged line runs underneath the letters. The logo is simple and modern.

CH-6343 Rotkreuz-Zug, Switzenland

4

Image /page/4/Picture/1 description: The image shows the logo for the Department of Health & Human Services - USA. The logo is circular with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" arranged around the perimeter. In the center of the circle is an abstract symbol that resembles a stylized caduceus or a human figure with outstretched arms.

Public Health Service

Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850

ਰ JUN

CADItec c/o Ms. Betty Lock Submission Correspondent Medline Industries, Inc. One Medline Place Mundelein, IL 60060

Re: K990809 CADIscope Electronic Stethoscope Regulatory Class: II (two) Product Code: DQD Dated: February 8, 1999 Received: March 11, 1999

Dear Ms. Lock:

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 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). 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 Requlations, 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 Druq Administration (FDA) will verify such Failure to comply with the GMP regulation may result in assumptions.

5

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.

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 requlation (21 CFR Part 801 and additionally 809.10 for in vitro diaqnostic 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, 2Misbranding by reference to premarket notification? (21CFR 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/dsma/dsmamain.html".

Sincerely yours,

Thomas J. Callahan

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

Enclosure

6

INDICATIONS FOR USE 5.

Page 1 1 1

INDICATIONS FOR USE STATEMENT

510(k) Number : K980105

Device Name: CADIscope Electronic Stethoscope

Indications for Use:

The CADIscope is a patented electronic stethoscope with an integrated graphics display to show the amplified heart sounds as phonocardiograms and show parallel to the heart sounds the ECG in an Einthoven Triangle.

It is intended for use as a diagnostic aid as part of a physical assessment of a patient by health care professionals or other individuals trained to administer emergency first aid or otherwise care for a patient.

It can be used for the amplification of heart, lung, blood vessel, enteral and other body sounds. When the device's integral electrodes are placed on the chest of the patient, it is capable of verifying the existence of cardiac biopotential activity. The quality of the biopotential activity display depends upon user technique and environmental conditions and it is in no way meant to be diagnostic.

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

Concurrence of CDRH, Office of Device Evaluation (ODE)

Prescription Use (Per 21 CFR 801.109)

OR

Over-The-Counter Use

(Optional Format 1-2-96)

V. Ruth Hillin

11 Carringscular No irologica Douges 510(k) Number