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The EC-3840TL, Video Colonscope, is intended to provide visualization (via a video monitor) of, and therapeutic access to, the Lower Gastrointestinal Tract. The Lower Gastrointestinal Tract includes, but is not restricted to, the organs; tissues; and subsystems; Large Bowel. The instrument is introduced per rectally when indications consistent with the requirement for the procedure are observed in Adult and Pediatric patient populations.

The EC-3840TL, Video Colonoscope, must be used with a Video Processor (a software controlled device). The endoscope has a flexible insertion tube, a control body, and umbilicus. The umbilious provides connection to the video processor. The control body includes controls for up/ downl left/ right angulation, air/water delivery, suction, forward water jet, two (2) accessory inlet ports, and suction channel selector. The device contains light carrying bundles, to illuminate the body cavity, and a charge couple device (CCD) to collect image data. The instrument contains two (2) working channels through which biopsy devices, or other devices, may be introduced (the instrument is supplied with two biopsy forceps). The Video Processor contains a 300 watt xenon lamp which provides white light that is filtered, via a Red, Green, Blue color wheel, and is focused at the connected video endoscope lightguide prong The endoscope light carrying bundles present the color strobes to the body cavity and the CCD collects image data for each strobe of color. The video processor stores the CCD information until all three color strobes are completed and a full color frame is compiled. Image data and other screen display information are formatted and presented to the video outputs of the video processor for display.

This 510(k) summary for the Pentax EC-3840TL Video Colonoscope does not provide information on acceptance criteria or a study proving the device meets said criteria, as it explicitly states: "The submission for substantial equivalence was not based on an assessment of clinical performance data."

Therefore, I cannot provide the requested information. The K961563 submission focuses on demonstrating substantial equivalence to predicate devices (EC-3800TL Video Colonoscope and EPM-3300 Video Processor) through device specifications, standard components, and accessories, rather than clinical performance studies with specific acceptance criteria.

The submission is from 1996, and regulatory requirements have evolved significantly since then. Modern 510(k) submissions for similar devices would typically include clinical performance data and detailed acceptance criteria.

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