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The PENTAX Medical Endoscopic Ultrasound System is intended to provide optical visualization of, ultrasonic visualization of, and therapeutic access to, the Upper Gastrointestinal Track including but not restricted to the organs, tissues, and subsystems: Esophagus, Stomach, Duodenum, Small Bowel, and underlying areas. The instrument is introduced per orally when indications consistent with the requirement for procedure are observed in adult and pediatric patient populations.

The EG-3270UK, Ultrasound Upper GI Video Scope, is an endoscope used to provide visualization of, and therapeutic access to, the upper gastrointestinal tract. It is used with cleared Pentax Video processors (a software controlled device) and cleared Hitachi Ultrasound Scanner (a software controlled device). The endoscope has a flexible insertion tube, a control body, PVE umbilical connector, and ultrasound scanner umbilical connector. The PVE umbilical connector will be attached to the Video Processor and has connections for illumination, video signals, air/ water/ and suction. The ultrasound scanner umbilical connector will be attached to the ultrasound scanner unit. A sterile, single use disposable latex balloon is fitted over the convex array ultrasound transducer prior to the procedure. During an ultrasound endoscopy procedure, the latex balloon is inflated with water. The water that is contained within the balloon creates a water field that covers the transducer. The water field enables more effectively transport of ultrasonic pulses from the ultrasound transducer to the target anatomical site and back to the ultrasound transducer. The control body includes controls for up/ down/ left/ right angulation, air/ water delivery, and an accessory inlet port. The endoscope contains light carrying bundles to illuminate the body cavity, a charge couple device (CCD) to collect endoscopic image data, and a linear array ultrasound transducer to collect ultrasonic image data. The instrument contains a working channel through which biopsy devices, or other devices, may be introduced. The video processor contains a lamp that provides white light and is focused at the PVE connector light guide prong. The endoscope light carrying bundles present the light to the body cavity and the CCD collects endoscopic image data. Image data and other screen display information are formatted and presented to the video outputs of the video processor for display. The ultrasound transducer delivers ultrasonic pulses, reflections of the pulses are received and the signals are passed to the ultrasound scanner for processing and display. The instrument is immersable (with the use of supplied cleaning accessories) except for the ultrasound scanner connector (as described in the endoscope operator manual cleaning instructions)

The provided text is a 510(k) summary for the PENTAX Medical Endoscopic Ultrasound System. It describes the device, its intended use, and a comparison to a predicate device, along with performance data to support substantial equivalence.

However, the provided document does not contain information about:

• A table of acceptance criteria and reported device performance for a specific clinical study.
• Sample sizes used for test sets or their data provenance (country, retrospective/prospective).
• Number of experts used or their qualifications for establishing ground truth.
• Adjudication methods.
• Multi-reader multi-case (MRMC) comparative effectiveness studies or effect sizes for AI assistance.
• Standalone algorithm performance studies.
• Type of ground truth used (expert consensus, pathology, outcomes data, etc.) for a specific clinical evaluation.
• Sample size for a training set or how its ground truth was established.

The document primarily focuses on engineering and regulatory performance data, such as biocompatibility, reprocessing validation, electrical safety, software verification, and acoustic output measurements, to demonstrate that the device is as safe and effective as a legally marketed predicate device. These are not clinical performance parameters that would typically be described with the detailed acceptance criteria and study design requested in the prompt.

Therefore, I cannot fulfill the request for a table of acceptance criteria, device performance, and details about a clinical study based on the provided text. The document refers to various standards and guidance documents (e.g., ISO 10993, IEC 60601, FDA Guidance for Software and Diagnostic Ultrasound Systems) which set out general performance requirements and testing methodologies, but these are not presented as specific acceptance criteria tied to a clinical performance study as typically understood in the context of an AI/algorithm-based device.

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