K Number
K211068
Device Name
PrevisEA Device
Manufacturer
Date Cleared
2021-08-04

(114 days)

Product Code
Regulation Number
870.1875
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP Authorized
Intended Use
PrevisEA is a compact, non-invasive device placed on the abdomen to capture the digestive sounds of patients. PrevisEA displays information which assists physicians in assessing the digestive health of patients. This device is for prescription use only and should be used under the direction of a licensed healthcare practitioner. The PrevisEA device has not been tested for and it is not intended for pediatric use.
Device Description
PrevisEA is a non-invasive, self-contained, medical device with a proprietary algorithm used to assess the digestive health of patients. The device includes a stethoscope diaphragm, sound chamber, embedded microphone and CPU, as well as a display screen and buttons. The PrevisEA device is a convenient, single-use, disposable unit, which attaches to the abdomen of the patient via an adhesive wafer on the back of the device. The PrevisEA is a single-use, disposable unit, which avoids the need for cleaning and disinfection. The PrevisEA requires no cable connections for operation of the device. Integration of the above components allow auscultation and digital capture of digestive sounds, such as MH4. Messages are transmitted to the easy-to-read display screen on the front of the device. The PrevisEA detects the acoustic biomarker MH4 and quantifies the number of MH4 detections over a 4-minute interval, which it compares to a predefined threshold to determine the presence of abnormal digestive health in patients following intestinal surgery, such as gastrointestinal impairment (GII).
More Information

Not Found

No
The summary mentions a "proprietary algorithm" and "detects the acoustic biomarker MH4 and quantifies the number of MH4 detections," but there is no explicit mention of AI, ML, or related terms, nor is there any description of training or test sets which are typical for ML-based devices. The function described appears to be based on a predefined threshold and acoustic detection, not adaptive learning.

No.
The device is used to assess digestive health by capturing and analyzing digestive sounds. It displays information to assist physicians in assessment, but does not provide therapy or treatment.

Yes
The device is described as assisting physicians in "assessing the digestive health of patients" and determining "the presence of abnormal digestive health," which are diagnostic functions.

No

The device description explicitly states it includes hardware components such as a stethoscope diaphragm, sound chamber, embedded microphone and CPU, display screen, and buttons. It is a physical, self-contained unit.

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

Here's why:

  • IVDs analyze samples taken from the human body. This typically includes blood, urine, tissue, etc.
  • PrevisEA is a non-invasive device placed on the abdomen. It captures sounds from within the body, but it doesn't analyze a sample taken from the body.
  • The device description focuses on capturing and analyzing acoustic signals (digestive sounds). This is a physical measurement, not a chemical or biological analysis of a sample.

Therefore, PrevisEA falls under the category of a non-invasive medical device that uses acoustic analysis to assess digestive health.

N/A

Intended Use / Indications for Use

PrevisEA is a compact, non-invasive device placed on the abdomen to capture the digestive sounds of patients. PrevisEA displays information which assists physicians in assessing the digestive health of patients. This device is for prescription use only and should be used under the direction of a licensed healthcare practitioner. The PrevisEA device has not been tested for and it is not intended for pediatric use.

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

DQD

Device Description

PrevisEA is a non-invasive, self-contained, medical device with a proprietary algorithm used to assess the digestive health of patients. The device includes a stethoscope diaphragm, sound chamber, embedded microphone and CPU, as well as a display screen and buttons. The PrevisEA device is a convenient, single-use, disposable unit, which attaches to the abdomen of the patient via an adhesive wafer on the back of the device. The PrevisEA is a single-use, disposable unit, which avoids the need for cleaning and disinfection.

The PrevisEA requires no cable connections for operation of the device. Integration of the above components allow auscultation and digital capture of digestive sounds, such as MH4.

Messages are transmitted to the easy-to-read display screen on the front of the device. The PrevisEA detects the acoustic biomarker MH4 and quantifies the number of MH4 detections over a 4-minute interval, which it compares to a predefined threshold to determine the presence of abnormal digestive health in patients following intestinal surgery, such as gastrointestinal impairment (GII).

Mentions image processing

Not Found

Mentions AI, DNN, or ML

Not Found

Input Imaging Modality

Not Found

Anatomical Site

abdomen

Indicated Patient Age Range

The PrevisEA device has not been tested for and it is not intended for pediatric use.

Intended User / Care Setting

licensed healthcare practitioner

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)

Clinical data was submitted in support of this 510k Premarket Notification. Clinical testing demonstrated the PrevisEA Device accomplishes its intended use. Trial Registration: ClinicalTrials.gov NCT03505476

75 subjects undergoing intestinal resection surgery had PrevisEA applied at the completion of surgery.

This study demonstrated the capability of the PrevisEA Device in listening/capturing the acoustic biomarker, MH4 while in clinical use (attached to patient abdomens).

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.

K150782

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.

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August 4, 2021

Entac Medical Inc. % Adam Harris Director, Regulatory Affairs Target Health LLC 261 Madison Avenue, 24th Floor New York, NY 10016

Re: K211068

Trade/Device Name: PrevisEA Device Regulation Number: 21 CFR 870.1875 Regulation Name: Stethoscope Regulatory Class: Class II Product Code: DOD Dated: May 5, 2021 Received: May 7, 2021

Dear Adam Harris:

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

1

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) 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 (QS) 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 Shanil P. Haugen, Ph.D. Assistant Director DHT3A: Division of Renal, Gastrointestinal, Obesity and Transplant Devices OHT3: Office of GastroRenal, ObGyn, General Hospital and Urology Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health

Enclosure

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Indications for Use

510(k) Number (if known) K211068

Device Name PrevisEA Device

Indications for Use (Describe)

PrevisEA is a compact, non-invasive device placed on the abdomen to capture the digestive sounds of patients. PrevisEA displays information which assists physicians in assessing the digestive health of patients. This device is for prescription use only and should be used under the direction of a licensed healthcare practitioner. The PrevisEA device has not been tested for and it is not intended for pediatric use.

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)

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PrevisEA Device K211068 Premarket Notification

5. 510(k) Summary

5.1

Entac Medical Inc. 680 Oakleaf Office Lane, Suite 201 Memphis, TN 38117

5.2 Contact Person

Adam Harris, MM, RAC Director, Regulatory Affairs Target Health LLC 261 Madison Avenue, 24th Floor New York, NY 10016 Telephone: (646) 218-2009 aharris@targethealth.com

Date of Summary: July 8, 2021

Device Proprietary NamePrevisEA™ Device
Common/Usual NameElectronic Stethoscope
Classification Names /
Numbers and Code21 CFR
870.1875Classification Name
Electronic StethoscopeCode
DQD
Regulatory Class2
Prescription StatusPrescription Device
Classification PanelGastroenterology
Predicate DeviceK150782GI Logic AbStats® Gateway
Description of DevicePrevisEA is a non-invasive, self-contained, medical device with a
proprietary algorithm used to assess the digestive health of patients. The
device includes a stethoscope diaphragm, sound chamber, embedded
microphone and CPU, as well as a display screen and buttons. The
PrevisEA device is a convenient, single-use, disposable unit, which
attaches to the abdomen of the patient via an adhesive wafer on the back
of the device. The PrevisEA is a single-use, disposable unit, which avoids
the need for cleaning and disinfection.

The PrevisEA requires no cable connections for operation of the device.
Integration of the above components allow auscultation and digital
capture of digestive sounds, such as MH4.

Messages are transmitted to the easy-to-read display screen on the front
of the device. The PrevisEA detects the acoustic biomarker MH4 and
quantifies the number of MH4 detections over a 4-minute interval, which it
compares to a predefined threshold to determine the presence of abnormal | | |

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| | digestive health in patients following intestinal surgery, such as gastrointestinal
impairment (GII). |
|-------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Indications for Use/Intended
Use | PrevisEA is a compact, non-invasive device placed on the abdomen to
capture the digestive sounds of patients. PrevisEA displays information
which assists physicians in assessing the digestive health of patients. This
device is for prescription use only and should be used under the direction
of a licensed healthcare practitioner. The PrevisEA device has not been
tested for and it is not intended for pediatric use. |

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Subject DevicePredicate Device
Entac PrevisEA DeviceGI Logic Abstats GatewayComparison
510(k) NumberK211068K150782Same
Product CodeDQDDQDSame
Regulation21 CFR 870.1875 Stethoscope21 CFR 870.1875 StethoscopeSame
Intended UsePrevisEA is a compact, non-
invasive device placed on the
abdomen to capture the digestive
sounds of patients. PrevisEA
displays information which assists
physicians in assessing the
digestive health of patients.
This device should be used under
the direction of a licensed
healthcare practitioner. The
PrevisEA device has not been
tested for and it is not intended for
pediatric use.The AbStats Gateway is a compact
device with integrated sensor
interfaces and embedded
computing system (stethoscope)
that in conjunction with external
sensors constitutes the AbStats
system. The AbStats system
external sensors are placed on the
abdomen and identify the vibratory
signals associated with digestive
processes. This device should be
used under the direction of a
licensed healthcare practitioner
when it is required to determine
this patient digestive state. The
device has not been tested for and
it is not intended for pediatric use.Substantially equivalent
Number of Sensors1 - self contained2 - externalDifferent number and location but
substantially equivalent
functionality
Sensor Size (mm) Active Area3 inches30 mm x 20 mm
400 mm2Different size but substantially
equivalent functionality
Subject DeviceReference DeviceComparison
Entac PrevisEA DeviceGI Logic Abstats Gateway
AlgorithmThe PrevisEA utilizes
algorithm technology to
specifically evaluate
gastrointestinal auditory
biomarker MH4The Abstats Gateway utilizes algorithm
technology to recognize and classify
gastrointestinal signalsDifferent but Subject and
Reference devices have similar
functionality
Sensor TechnologyStandard Electrical
MicrophoneStandard Electrical MicrophoneSubstantially equivalent
System TechnologySensor data signal processing
and computingSensor data signal processing
and computingSubstantially equivalent
Interface to PCNone required (no PC
Interface)None required (no PC Interface)Substantially equivalent
Power SupplyLithium-Ion Battery5V USB Power SourceDifferent but substantially
equivalent functionality
Sensor Cable Length (m)N/A – none required2.0 mDifferent but substantially
equivalent functionality
IEC60601 1-1:2005 3rd Edition
Medical Electrical Equipment Part
1: General Requirement or SafetyConformsConformsSubstantially equivalent
EN60601-1-2, 2007/03, EMC
Requirements for Safety, 2.
Collateral Standard –
Electromagnetic Compatibility
Requirements and TestsConformsConformsSubstantially Equivalent
Immunity Requirements for Medical
Electrical Equipment Part 1:
GeneralConformsConformsSubstantially Equivalent
Subject DeviceReference DeviceComparison
Entac PrevisEA DeviceGI Logic Abstats Gateway
BiocompatibilityTesting demonstrated all
patient contacting materials
for the PrevisEA device to be
safe and biocompatibleNo biocompatibility testing performed as the
only patient contact consists of commercially
available dermal adhesive dressingsSubstantially Equivalent
SoftwareThe PrevisEA software
processes audio signals for
display and presentation to
the user.The AbStats software processes
audio signals for display
and presentation to the user.Substantially Equivalent
Auscultation Performance Tests:
Bench TestingPassed/ConformsPassed/ConformsSubstantially Equivalent
Clinical performance validationListens for the MH4 acoustic
biomarkerListens for acoustic event rates to determine
an intestinal motilityDifferent mechanism/parameter
of assessment but does not raise
new issues of safety and efficacy.
Abdomen PlacementThe PrevisEA is placed in
any quadrant of the patient's
abdomen.
Image: PrevisEA device on a human torsoAbStats external sensors placed on the
abdomen,
Image: AbStats external sensors placed on a human abdomenSubstantially Equivalent

Table 1: Substantial Equivalence Comparison Table

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Table 1: Substantial Equivalence Comparison Table (Continued)

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Table 1: Substantial Equivalence Comparison Table (Continued)

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CharacteristicsPrevisEAAbstats Gateway
Electronic StethoscopeYesYes
Non-invasive systemYesYes
Attach to abdomenYesYes
Auscultation deviceYesYes
Assess digestion specificallyYesYes
Algorithm technologyYesYes
Self-contained sensorsYesNo
Batter poweredYesNo

Table 2: Summary of Technological Characteristics Compared to the Predicate Device

5.3 Biocompatibility Testing

Biocompatibility tests were conducted with the PrevisEA Device according to ISO 10993-1:2018 Biological evaluation of medical devices -- Part 1: Evaluation and testing within a risk management process. These studies demonstrated the PrevisEA Device is biocompatible.

5.4 Electrical Safety and Electromagnetic Compatibility (EMC)

Electrical product safety, electromagnetic compatibility, and battery safety testing were performed for the PrevisEA Device. All testing met acceptance criteria and demonstrated the PrevisEA Device to be safe and electromagnetically compatible.

ર્સ્ડ Clinical Testing - PrevisEA Optimization Trial

Clinical data was submitted in support of this 510k Premarket Notification. Clinical testing demonstrated the PrevisEA Device accomplishes its intended use. Trial Registration: ClinicalTrials.gov NCT03505476

75 subjects undergoing intestinal resection surgery had PrevisEA applied at the completion of surgery.

This study demonstrated the capability of the PrevisEA Device in listening/capturing the acoustic biomarker, MH4 while in clinical use (attached to patient abdomens).

5.6 Conclusion

Since the comparison of bench testing to clinical outcomes is still not well understood for this type of device, clinical testing was required to support substantial equivalence.

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The clinical data submitted validates the intended use of the PrevisEA Device. The nonclinical data support the safety and effectiveness of the device, and the bench demonstrates the device meets its own specifications. The hardware and software verification and validation demonstrate that the PrevisEA device performs as intended in the specified use conditions. Though there are minor differences in technological characteristics, the data provided in this submission and the comparisons demonstrate these differences do not raise new questions of safety and efficacy. It is the conclusion of the sponsor that the subject device is substantially equivalent to the predicate and reference devices.