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Related Concept Videos

Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy01:26

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Sigmoidoscopy and laparoscopy are distinct medical procedures that enable physicians to internally inspect different parts of the GI tract. Although they serve different purposes, each is essential for diagnosing and, in some cases, treating various medical conditions.
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Capsule endoscopy, or wireless or video capsule endoscopy, is a diagnostic procedure for examining the entire gastrointestinal tract. Patients swallow a capsule about the size of a vitamin tablet. The capsule is equipped with a transmitter, a battery, an LED light source, and a color video camera to capture images throughout the gastrointestinal tract. This procedure is particularly useful for diagnosing conditions such as Crohn's disease, ulcerative colitis, tumors, polyps, ulcers,...
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Updated: Sep 19, 2025

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Endoscopic Lens Cleaning Device Without In-And-Out Decreased Operative Time.

Masaaki Moriyama1,2, Keitaro Matsumoto1,2, Katsunori Takagi1,2

  • 1Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.

Asian Journal of Endoscopic Surgery
|June 19, 2025
PubMed
Summary

New endoscopic washing equipment prototypes were tested to improve surgical visibility. Prototype C demonstrated the most effective and balanced cleaning performance, reducing cleaning time and enhancing surgical safety.

Keywords:
cleaning timeendoscopyoperative timewashing equipment

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Area of Science:

  • Minimally Invasive Surgery
  • Surgical Technology
  • Endoscopy

Background:

  • Limited vision in endoscopic surgery compromises safety and increases operative time.
  • Fog, fat, and blood obscure the endoscope's field of view during procedures.
  • Effective cleaning of endoscopic equipment is crucial for maintaining optimal surgical conditions.

Purpose of the Study:

  • To assess the necessity of specialized washing equipment for endoscopes.
  • To evaluate the performance of novel washing device prototypes in simulated and animal settings.
  • To determine the impact of cleaning efficiency on surgical workflow and safety.

Main Methods:

  • Four washing equipment prototypes (A, B, C, D) were developed and tested.
  • Cleaning times for blood and fat stains were measured across five endoscopic procedures (LADG, LAC, Ro-LAR, VATS, RATS).
  • Performance was evaluated in dry and wet laboratory settings using pig models.

Main Results:

  • Laparoscopic radical dissection of the stomach (LADG) showed the longest cleaning time, correlating with extended operative time.
  • Prototype B excelled in bleeding models, while Prototype C was superior for fat deposition models in dry labs.
  • Prototype C demonstrated the most balanced and effective overall cleaning performance in animal experiments.

Conclusions:

  • The developed cleaning devices can significantly reduce endoscopic surgery duration.
  • Implementing these devices may alleviate surgeon stress and optimize medical resource utilization.
  • Further clinical validation is required to confirm the benefits for surgical safety and efficiency.