K Number
K240274
Manufacturer
Date Cleared
2024-09-17

(230 days)

Product Code
Regulation Number
876.4400
Panel
GU
Reference & Predicate Devices
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
Intended Use

The PADLOCK CLIP™ EFTR Device is a device that is designed for a flexible endoscope. It is intended for diagnostic tissue acquisition and full-thickness resection through the removal of lesions in the colon and rectum.

The PADLOCK CLIP™ EFTR Device is indicated for the resection of lesions less than 3cm in the colon and rectum. Resection sizes may be less than 3cm due to targeted tissue thickness and degree of fibrosis.

The disposable RAPTOR Grasping Device is intended to be used to grasp tissue and/or retrieve foreign bodies, excised tissue and stents during endoscopic procedures.

The TOUCHSOFT Coagulator is used to provide monopolar therapeutic hemostasis and tissue ablation in the gastrointestinal tract through a flexible endoscope by a trained physician or clinician.

Device Description

The PADLOCK CLIP Endoscopic Full Thickness Resection (EFTR) Device is an electrosurgical, single use tissue resection system. The system is part of a kit that consists of a preloaded, radiopaque, Super Elastic NiTi (Nitinol) single use clip within a mechanical delivery system along with a preloaded snare for tissue resection. The PADLOCK CLIP EFTR Device is mounted over the distal tip of a flexible endoscope. The linking cables run along the outside of the endoscope and are attached to the handle. The PADLOCK CLIP EFTR Device includes a tissue chamber that resides on the distal tip of the endoscope.

The kit's two additional devices, the TOUCHSOFT Coagulator Monopolar Single Use Device, and RAPTOR Grasping Device are used in conjunction with the PADLOCK CLIP EFTR Device through the flexible endoscope's accessory channel. The TOUCHSOFT Coagulator Monopolar Single Use Device (ablation device) will be used to mark a lesion by ablating the lesson's perimeter, thereby indicating the area for resection. Instructions for Use for the TOUCHSOFT Coagulator Monopolar Single Use Device are included within the kit. The RAPTOR Grasping Device will be used to grasp and retract the target lesion into the tissue chamber. Instructions for Use for the RAPTOR are included within the kit. These devices are used for colorectal lesions that would otherwise not be resectable by standard polypectomy techniques.

The PADLOCK CLIP EFTR Device includes a resection clip made of super elastic nitinol and a snare made of stainless steel. The PADLOCK CLIP EFTR Device also includes handle components molded from ABS material, Stainless Steel drive wires, HDPE catheter, and a scope attachment assembly made of TPE and Polycarbonate.

AI/ML Overview

The provided document is a 510(k) summary for the PADLOCK CLIP EFTR Kit, which is a medical device for endoscopic full-thickness resection. The document outlines verification, validation, animal, and other testing to demonstrate substantial equivalence to a predicate device.

Here's a breakdown of the requested information:

1. Table of Acceptance Criteria and Reported Device Performance:

CategoryTestingAcceptance CriteriaReported Device Performance
Simulated UseEndoscope Detachment ForceMeets Design RequirementsPass
Transparent Housing VerificationMeets Design RequirementsPass
Clip and Snare DeploymentMeets Design RequirementsPass
Over the Scope Attachment VerificationMeets Design RequirementsPass
Safety Cap VerificationMeets Design RequirementsPass
Handle Stay Visual VerificationMeets Design RequirementsPass
Safety Cap Visual VerificationMeets Design RequirementsPass
Snare Proximal to Clip Visual VerificationMeets Design RequirementsPass
Packaging RequirementsPeel Seal Strength VerificationMeets Design RequirementsPass
Clip Deployment ForceMeets Design RequirementsPass
MAX Handle Snare Retraction ForceMeets Design RequirementsPass
Snare Continuity TestMeets Design RequirementsPass
Pusher Compression ForceMeets Design RequirementsPass
Spool Compression ForceMeets Design RequirementsPass
Clip Pusher OD MeasurementMeets Design RequirementsPass
Device Working Length MeasurementMeets Design RequirementsPass
Tissue Chamber Depth MeasurementMeets Design RequirementsPass
Tissue Chamber Distal ID MeasurementMeets Design RequirementsPass
Component Force and Functional RequirementsActive Cord Detachment ForceMeets Design RequirementsPass
Catheter (110302) to Housing ForceMeets Design RequirementsPass
Catheter (110052) to Housing ForceMeets Design RequirementsPass
Catheter (110303) to Pusher ForceMeets Design RequirementsPass
Drive Cable to Snare Loop ForceMeets Design RequirementsPass
Tissue Retention ForceMeets Design RequirementsPass
Clip Closure ForceMeets Design RequirementsPass
Actuator to Catheter (110302) ForceMeets Design RequirementsPass
Actuator to Catheter (110052) ForceMeets Design RequirementsPass
Drive Cable to Connector ForceMeets Design RequirementsPass
Scope Attachment to Housing ForceMeets Design RequirementsPass
Legibility of MarkingsMeets Design RequirementsPass
Validation TestingClip Deployment and Snare Resection ValidationMeets Design RequirementsPass
Straight and Articulated Endoscope Position Use ValidationMeets Design RequirementsPass
Visualization in the Lower GI Tract ValidationMeets Design RequirementsPass
Endoscope Compatibility ValidationMeets Design RequirementsPass
Safety Feature for Deployment of Clip ValidationMeets Design RequirementsPass
Animal Test - Design ValidationThe PADLOCK CLIP™ EFTR Device Clip must facilitate healing after the removal of lesions up to 3cm in the GI tractMeets Design RequirementsPass
Additional TestingMRI TestingMeets the Requirements of ASTM F2052-21, ASTM F2182-19, ASTM F2119-2013 (17)Pass
Electrical testingMeets the Requirements of IEC 60601-1:2005 Ed.3 + A1; A2, IEC 60601-2-2:2017 Ed.6 and, IEC 60601-2-18:2009 Ed.3Pass
BiocompatibilityMeets the requirements of ISO 10993-5:2009 Ed.3, 10993-12:2021 Ed.5, 10993-11:2017 Ed.3 & 10993-23:2021 Ed.1, 10993-1:2018, 10993-6 Ed. 3, 10993-18:2020Pass
Human FactorsMeet Predetermined Critical TasksPass
EMC TestingMeets the Requirements of 60601-1-2:2014+A1:2020 and 60601-4-2:2016; Meets the Requirements of EMC clauses 201.17/202 of ANSI AAMI IEC 60601-2-2:2017; Meets the Requirements of EMC clauses of 201.17/202 of IEC 60601-2-18 Ed. 3 2009-08Pass

2. Sample Size Used for the Test Set and the Data Provenance:

The document summarizes the types of tests performed (Simulated Use, Packaging Requirements, Component Force and Functional Requirements, Validation Testing, Animal Test - Design Validation, MRI Testing, Electrical Testing, Biocompatibility, Human Factors, EMC Testing) and their outcomes ("Pass"). However, it does not provide details on the specific sample sizes used for each test set within these categories.

Similarly, the document does not mention the data provenance (e.g., country of origin, retrospective or prospective nature) for any of the non-clinical tests.

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

The document does not specify the number of experts used or their qualifications for establishing ground truth for any of the tests. The acceptance criteria are generally phrased as "Meets Design Requirements" or conformity to international standards, implying compliance with engineering specifications and regulatory benchmarks rather than a human-expert-derived ground truth.

4. Adjudication Method for the Test Set:

The document does not describe any adjudication method like 2+1 or 3+1. The tests listed are primarily performance-based and compliance-based, with results indicated as "Pass," suggesting a direct comparison to pre-defined specifications rather than expert consensus requiring adjudication.

5. If a Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study was Done, and the Effect Size of How Much Human Readers Improve with AI vs Without AI Assistance:

The document does not mention or describe a multi-reader multi-case (MRMC) comparative effectiveness study. The PADLOCK CLIP EFTR Kit is a mechanical and electrosurgical device, not an AI-powered diagnostic or assistive tool, so such a study would not be relevant in this context.

6. If a Standalone (i.e. algorithm only without human-in-the loop performance) Was Done:

This question is not applicable as the PADLOCK CLIP EFTR Kit is a physical medical device, not an algorithm or software requiring standalone performance testing in the typical sense of AI/software. Its performance is evaluated through a series of engineering, functional, and biological tests.

7. The Type of Ground Truth Used:

The ground truth for most of the tests appears to be engineering design requirements, predefined specifications, and compliance with established international standards (e.g., ASTM, IEC, ISO). For the animal study, the "ground truth" for success was the device's ability to "facilitate healing after the removal of lesions up to 3cm in the GI tract," which would be assessed by veterinary or pathology evaluation of the animal tissue post-procedure.

8. The Sample Size for the Training Set:

The concept of a "training set" is typically associated with machine learning or AI models. Since the PADLOCK CLIP EFTR Kit is a physical medical device, there is no mention of a training set in this context. The non-clinical tests are verification and validation efforts, not machine learning model training.

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

Again, as there is no "training set" in the context of this device, this question is not applicable. The ground truth for the device's performance is established through adherence to design specifications and regulatory standards.

§ 876.4400 Hemorrhoidal ligator.

(a)
Identification. A hemorrhoidal ligator is a device used to cut off the blood flow to hemorrhoidal tissue by means of a ligature or band placed around the hemorrhoid.(b)
Classification. Class II (special controls). Except for a hemostatic metal clip intended for use in the gastrointestinal tract, the device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 876.9.