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Related Concept Videos

Endoscopic Procedures III: Video Capsule Endoscopy01:28

Endoscopic Procedures III: Video Capsule Endoscopy

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, unexplained...
Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy01:26

Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy

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.
Sigmoidoscopy
Sigmoidoscopy is a diagnostic procedure that uses a flexible sigmoidoscope equipped with a light source and camera to examine the rectum and sigmoid colon. The procedure involves inserting the tube through the anus...
Endoscopic Procedures V: ERCP01:26

Endoscopic Procedures V: ERCP

Endoscopic Retrograde Cholangiopancreatography (ERCP) is a diagnostic procedure that combines endoscopy and fluoroscopy to diagnose and treat conditions related to the bile ducts, pancreatic ducts, and gallbladder. This procedure is beneficial for identifying and addressing blockages, gallstones, strictures, and tumors within the biliary or pancreatic systems. ERCP is both diagnostic and therapeutic, offering the ability to visualize and treat identified problems in one session.
Patient...
Endoscopic Procedures II: Colonoscopy01:25

Endoscopic Procedures II: Colonoscopy

The colon, or large intestine, is the final segment of the digestive system. Its primary functions include absorbing water and vitamins produced by gut bacteria and transforming waste from liquid to solid to form stool. In adults, the large intestine is approximately 5 feet long and consists of four main sections:
Endoscopic Procedures I: Esophagogastroduodenoscopy01:29

Endoscopic Procedures I: Esophagogastroduodenoscopy

An Esophagogastroduodenoscopy (EGD) is a diagnostic procedure in which an endoscopist uses a flexible, lighted endoscope to visualize the upper gastrointestinal (GI) tract. The procedure includes visualizing the oropharynx, esophagus, stomach, and the first part of the small intestine, the duodenum.
During an EGD, the endoscope can be used to:
Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy01:26

Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy

This lesson explores three gastrointestinal imaging techniques: radionuclide testing, colonic transit studies, and virtual colonoscopy.
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In gastric emptying studies, a meal's liquid and solid...

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Related Experiment Video

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A Novel Capsulorhexis Technique Using Shearing Forces with Cystotome
04:53

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Published on: May 15, 2010

An approach to capsular endoscopy with active motion.

Marco Quirini1, Sergio Scapellato, Pietro Valdastri

  • 1Scuola Superiore Sant'Anna, Pisa, 56100 Italy. quirini@sssup.it

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
|November 16, 2007
PubMed
Summary

This study introduces a novel legged capsule endoscope for gastrointestinal exploration. The 8-leg prototype achieved 6 cm/min locomotion, enabling precise navigation within the digestive tract.

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Area of Science:

  • Biomedical Engineering
  • Robotics
  • Gastroenterology

Background:

  • Capsular endoscopy currently lacks active locomotion, limiting navigation and diagnostic capabilities.
  • Existing externally actuated systems are often bulky and cumbersome.
  • Precise maneuvering within the complex gastrointestinal tract remains a challenge.

Purpose of the Study:

  • To introduce a novel microdevice for gastrointestinal exploration utilizing active legged locomotion.
  • To detail essential functions and specific features required for digestive tract navigation.
  • To present and evaluate prototypes of a legged capsule endoscope.

Main Methods:

  • Development of two microdevice prototypes with 4 and 8 legs for active locomotion.
  • In vitro testing to evaluate speed, maneuverability, and functional capabilities.
  • Analysis of locomotion mechanisms for flexibility, accuracy, and on-board control.

Main Results:

  • The 8-leg prototype achieved an in vitro locomotion speed of 6 cm/min.
  • Demonstrated capabilities include backward and vertical locomotion.
  • Successfully navigated acute bends, showcasing enhanced maneuverability.

Conclusions:

  • Active legged locomotion offers a promising solution for advanced capsular endoscopy.
  • On-board locomotion eliminates the need for external driving systems.
  • The developed prototypes show potential for improved gastrointestinal diagnostics and exploration.