The Endophys Pressure Sensing Sheath Kit (Endophys Pressure Sensing Sheath, vessel dilator and guidewire) is intended to facilitate the introduction of diagnostic and interventional devices into the vasculature and to continuously measure blood pressure during the procedure when used with the Endophys Blood Pressure Monitor.

Together, the Pressure Sensing Sheath and the Blood Pressure Monitor comprise the Endophys Pressure Sensing Access System (PSASTM).

Device Description

The Endophys Pressure Sensing Sheath Kit is comprised of the Endophys Pressure Sensing Sheath, vessel dilator and guidewire. The Endophys Pressure Sensing Sheath and accessories are provided sterile (EO).

The Pressure Sensing Sheath ("PSS") is an introducer sheath with an integrated fiber optic pressure transducer. The PSS is provided with a dilator and a guidewire, which together make up the Endophys Pressure Sensing Sheath Kit ("PSS Kit"). The PSS Kit is intended to be used only with the Endophys Blood Pressure Monitor ("BPM"), which connects to the PSS and displays the blood pressure measurements. Together with the BPM, the PSS is used to continuously monitor patient blood pressure during procedures requiring vascular access.

The PSS introducer sheath is used to assist vascular access in the same manner as do standard catheter introducers. The PSS introducer sheath has an integrated pressure sensor that provides high resolution, continuous and instantaneous pulse wave hemodynamics to monitor blood pressure. Together, the Pressure Sensing Sheath and the Blood Pressure Monitor comprise the Endophys Pressure Sensing Access System (PSASTM).

The vessel dilator is used to facilitate insertion of the PSS, and is packaged with the Endophys PSS Kit. Once the PSS has been properly positioned in the vessel, the dilator is removed.

The guidewire is J tipped, 50cm (length), 0.89mm (diameter), and is used to assist in the placement of the dilator/PSS Introducer Sheath through the skin and into the vasculature. Once the dilator and introducer are positioned over the guidewire, the guidewire is removed through the dilator.

AI/ML Overview

This document, a 510(k) Summary for the Endophys Pressure Sensing Sheath Kit, primarily focuses on demonstrating substantial equivalence to a predicate device rather than providing a detailed study that proves the device meets specific acceptance criteria with performance metrics. While it lists various performance data that were provided, it does not explicitly define acceptance criteria or present a study report with measured performance against those criteria.

Therefore, many of the requested details (like sample sizes, ground truth establishment, expert qualifications, adjudication methods, and MRMC study details) are not available in this document.

Here's a summary of what information can be extracted based on the provided text:

1. Table of Acceptance Criteria and Reported Device Performance

The document states: "The modified Endophys Pressure Sensing Sheath met all specified criteria and based on the design verification performance, the conclusions drawn from the nonclinical tests demonstrate that the device is as safe, as effective, and performs as well as or better than the legally marketed device."

However, the specific "specified criteria" and the quantitative "reported device performance" are not detailed in this summary. The summary lists types of tests performed. Without the actual test reports, the acceptance criteria and performance data cannot be presented in a table.

Here's an example of the types of performance data mentioned, but without acceptance criteria or reported values:

Test Type	Acceptance Criteria (Not provided in source)	Reported Device Performance (Not provided in source)
6% Luer Conical Fittings Gauge Test	(e.g., Must conform to ISO 594-1/2)	(e.g., All fittings conformed)
6% Luer Conical Fittings Separation Force	(e.g., Must exceed X Newtons)	(e.g., Average separation force Y Newtons)
Sensor Accuracy	(e.g., +/- Z mmHg)	(e.g., Achieved +/- Z' mmHg)
Dimensional Analysis	(e.g., Within specified tolerance)	(e.g., All dimensions within tolerance)
Radiopacity	(e.g., Clearly visible under fluoroscopy)	(e.g., Visible as per standard)
Flexibility Tip deflection	(e.g., Deflection < A degrees)	(e.g., Deflection B degrees)
Kink Resistance	(e.g., No kinking at C degree bend)	(e.g., No kinking at D degree bend)
Sensor Functionality	(e.g., Sensor maintains function at E bend)	(e.g., Function maintained at F bend)
Tip Compression	(e.g., Resists compression force G)	(e.g., Resisted force H)
Liquid Leak Under Pressure	(e.g., No leak at I psi for J min)	(e.g., No leak at K psi for L min)
Liquid Leak through Hemostasis Valve	(e.g., No leak at M psi for N min)	(e.g., No leak at O psi for P min)
Separation Force at Break	(e.g., Break force > Q Newtons)	(e.g., Average break force R Newtons)
Pouch Peel Strength	(e.g., Peel strength S N/m)	(e.g., Average peel strength T N/m)
Dilator to Hemostasis Valve Separation Force	(e.g., Separation force > U Newtons)	(e.g., Average separation force V Newtons)
Biocompatibility Tests (e.g., Acute Systemic Injection, Ames Reverse Mutation Assay, In Vitro Hemocompatibility Test - Direct Contact, Mouse Lymphoma Mutagenesis Assay, Pyrogenicity, Rabbit Blood Hemolysis Test, Thrombogenicity, Unactivated PTT Test)	(e.g., Biocompatible per ISO 10993 standards)	(e.g., Passed all biocompatibility tests)
Shelf Life Testing	(e.g., Device meets specifications for X years)	(e.g., Device met specifications for Y years)
Corrosion Testing	(e.g., No corrosion after Z exposure)	(e.g., No corrosion observed)

2. Sample Size for the Test Set and Data Provenance

The document does not specify the sample sizes used for each test listed. It also does not provide details on the data provenance (e.g., country of origin, retrospective or prospective nature). The tests appear to be bench and laboratory-based, as well as biocompatibility studies.

3. Number of Experts Used to Establish Ground Truth for the Test Set and Their Qualifications

Since the listed tests are primarily physical, mechanical, and biological (biocompatibility), establishing "ground truth" in the traditional sense of clinical diagnosis by experts is not applicable. For tests like "Sensor Accuracy," the ground truth would likely be a highly accurate reference instrument or method. The document does not specify who performed these technical evaluations or their qualifications.

4. Adjudication Method

This concept is not applicable to the types of tests listed. Adjudication methods are typically relevant in studies where human interpretation of data (e.g., medical images) is being compared or requires consensus.

5. Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study

An MRMC study was not mentioned or indicated in this document. The device is a physical medical device (introducer sheath with a pressure sensor), not an AI or diagnostic imaging device that would typically undergo MRMC studies comparing human readers with and without AI assistance.

6. Standalone Performance Study

The document describes various performance tests of the device itself (e.g., Sensor Accuracy, Dimensional Analysis, Biocompatibility). These would constitute standalone performance studies for the product's physical and functional properties. However, the details of these studies are not provided.

7. Type of Ground Truth Used

For the listed performance tests, the "ground truth" would be established by:

Engineering specifications and standards: For dimensional analysis, luer fittings, flexibility, kink resistance, etc.
Laboratory-validated reference methods/instruments: For sensor accuracy, pressure measurements, etc.
Established biological and chemical testing protocols: For biocompatibility tests (e.g., ISO 10993 standards).

The document does not explicitly state these ground truth sources but implies their use by mentioning adherence to "specified criteria."

8. Sample Size for the Training Set

This device does not appear to be an AI/machine learning device that would have a "training set" in the conventional sense. The "training set" concept is not applicable here.

9. How the Ground Truth for the Training Set Was Established

As there is no indication of a training set for an AI/machine learning component, this question is not applicable.

Summary

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Image /page/0/Picture/0 description: The image contains the logo of the U.S. Food and Drug Administration (FDA). On the left is the Department of Health & Human Services logo. To the right of that is the FDA logo, which is a blue square with the letters "FDA" in white. To the right of the blue square is the text "U.S. FOOD & DRUG ADMINISTRATION" in blue.

November 30, 2017

Endophys Holdings, LLC % Mark Job Regulatory Technology Services, LLC 1394 25th Street. NW Buffalo, Minnesota 55313

Re: K173399

Trade/Device Name: Endophys Pressure Sensing Sheath Kit Regulation Number: 21 CFR 870.1340 Regulation Name: Catheter introducer Regulatory Class: Class II Product Code: DYB, DXO Dated: October 27, 2017 Received: October 31, 2017

Dear Mark Job:

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.

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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,

Kenneth J. Cavanaugh -S

for

Bram D. Zuckerman, M.D. Director Division of Cardiovascular Devices Office of Device Evaluation Center for Devices and Radiological Health

Enclosure

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Indications for Use

510(k) Number (if known) K173399

Device Name Endophys Pressure Sensing Sheath Kit

Indications for Use (Describe)

Together, the Pressure Sensing Sheath and the Blood Pressure Monitor comprise the Endophys Pressure Sensing Access System (PSASTM).

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.

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510(k) Summary for the Endophys Pressure Sensing Sheath Kit

The updated 510(k) Summary is provided on the following pages.

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510(k) Summary

510(k) Summarv Endophys Pressure Sensing Sheath Kit

I. SUBMITTER

Endophys, Inc. Thanksgiving Tower, Suite 3500 1601 Elm Street Dallas, TX 75201

Contact person: Phillip D. Purdy, M.D. Phone: 214-801-0578 Fax: 214-377-0709 Date prepared: October 18, 2017

II. DEVICE

Name of the device: Endophys Pressure Sensing Sheath Kit Common of usual name: Introducer Catheter and accessories Classification name: Catheter Introducer Regulatory Class: 2 Product Code: DYB (classification); DXO (subsequent)

III. PREDICATE DEVICE

Endophys Pressure Sensing Sheath Kit (K160272) This predicate has not been subject to a design-related recall

No reference devices were used in this submission.

IV. DEVICE DESCRIPTION

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instantaneous pulse wave hemodynamics to monitor blood pressure. Together, the Pressure Sensing Sheath and the Blood Pressure Monitor comprise the Endophys Pressure Sensing Access System (PSASTM).

The vessel dilator is used to facilitate insertion of the PSS, and is packaged with the Endophys PSS Kit. Once the PSS has been properly positioned in the vessel, the dilator is removed.

V. INDICATION FOR USE

Together, the Pressure Sensing Sheath and the Blood Pressure Monitor comprise the Endophys Pressure Sensing Access System (PSAS").

VI. COMPARISON OF TECHNOLOGICAL CHARACTERISTICS WITH THE PREDICATE DEVICE

Introducer catheters, by nature, are tubular structures intended to provide a pathway for therapeutic and/or diagnostic devices into the human vasculature. Specialized introducer catheters have been developed which incorporate sensors into these devices to allow active monitoring of blood pressure during interventional procedures. Blood pressure monitoring using a fiber optic transducer is the technological principle for both the subject and predicate devices. The technology requires use of a compatible blood pressure monitor to provide this data to the clinician.

At a high level, the subject and predicate device are based on the following same technological elements:

• Product Code		• UV Adhesive
• Device Classification Name		• Pressure Sensor Type
• 21 CFR Regulation Number		• Sensor Location
• Indications for Use		• Pressure Range
• Principle of Operation		• Accuracy of Pressure Reading
• Target Population		• Calibration
• Anatomical Site		• Power Source

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• Where Used	• Sensor Fiber
• Contraindications	• Sensor Diaphragm, Pedestal
• Human Factors	• 2-Part Epoxy
• Placement	• 3-Way Stopcock
• Not Resterilized	• Dilator Sheath Connectivity
• Sterilization Method	• Guidewire length
• Method of Blood Pressure measurement	• Guidewire width
• Components	• Guidewire tip configuration
• Instructions For Use	• Guidewire Source
• Labeling	• Guidewire straightener
• Biocompatibility Test Results	• Guidewire Wire and core material
• Sheath Taper Length	• Guidewire Hoop and Clip
• Suture Ring	• Guidewire Luer Lock
• Radiopaque Marker	• Sterile Barrier System
• Molded Y-Hub	• Primary Barrier Material
• Hemostasis Valve	• Die-Cut Card Material
• Primary Lumen Liner	• Shelf Carton
• Secondary Lumen Liner	• Pouch/Shelf/Shipper Box Label
• Braided Wire (Encapsulated)	• Shipping Carton

The following technological differences exist between the subject and predicate device:

Sheath Size	Dilator Size
•	•
Sheath Inside Diameter	Dilator Working Length
•	•
Sheath Outside Diameter	Dilator Tube/Extrusions
•	•
Overall Length	Hub Resin
•	•
Effective Length	Hub Ink (proposed device
•	only)
Outer Jacket Material
•	Hub Colorant
Hemostasis Valve Adapter
•	Shelf Life
UV Adhesive (proposed device
only)	•

PERFORMANCE DATA VII.

The following performance data was provided in support of the substantial equivalence.

6% Luer Conical Fittings Gauge Test .
6% Luer Conical Fittings Separation Force 트
6% Luer Conical Fittings Stress Cracking 트
Dimensional Analysis
트 Sensor Accuracy
Guide Wire / Device Compatibility
트 Radiopacity
Flexibility Tip deflection ■

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Flexibility Kink Resistance ■
Flexibility - Sensor Functionality
Tip Compression 트
Liquid Leak Under Pressure
트 Liquid Leak through Hemostasis Valve
트 Separation Force at Break
Pouch Peel Strength
' Dilator to Hemostasis Valve Separation Force
트 Acute Systemic Injection
트 Ames Reverse Mutation Assay
트 C3A and SC5B-9 Complement Activation Test - Direct Contact
In Vitro Hemocompatibility Test - Direct Contact
트 Intracutaneous Injection Test
Kligman Maximization (Sensitization) Test
L929 MEM Elution
" L929 Neutral Red Uptake
Mouse Lymphoma Mutagenesis Assay with Confirmation - ISO
트 Pyrogenicity Material Mediated
트 Rabbit Blood Hemolysis Test Complete
트 Thrombogenicity in Dogs
트 Unactivated PTT Test Direct Contact
Shelf Life Testing
I Corrosion Testing

The modified Endophys Pressure Sensing Sheath met all specified criteria and based on the design verification performance, the conclusions drawn from the nonclinical tests demonstrate that the device is as safe, as effective, and performs as well as or better than the legally marketed device.

SUBSTANTIAL EQUIVALENCE VIII.

The indications for use for the predicate device is substantially equivalent to the indications for use for the proposed PSS Kit. Furthermore, the PSS Kit has the same intended use, patient population, and anatomical sites as well as similar technological characteristics as the predicate device. The differences in technological characteristics have been analyzed and addressed through testing. Any differences in the technological characteristics between the devices do not raise different questions of safety or effectiveness. Thus, the Endophys Pressure Sensing Sheath Kit is substantially equivalent to the predicate device.

IX. CONCLUSION

The PSS Kit contains a catheter introducer sheath with an integrated fiber

Endophys, Inc.
Traditional 510(k) Notification
Endophys Pressure Sensing Sheath Kit

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optic pressure transducer, a dilator, and a guidewire for standard interventional procedures. The PSS Kit has the same intended use, patient population, and anatomical sites as well as similar technological characteristics as the predicate device. The differences in technological characteristics have been analyzed and addressed through testing. As such, the PSS Kit is substantially equivalent to the predicate device.

X. SUMMARY

The PSS Kit is substantially equivalent to the predicate device.

Regulation Number and Section

§ 870.1340 Catheter introducer.

(a)
Identification. A catheter introducer is a sheath used to facilitate placing a catheter through the skin into a vein or artery.(b)
Classification. Class II (performance standards).