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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 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:
Urologic Endoscopic Procedure: Cystoscopic Examination01:28

Urologic Endoscopic Procedure: Cystoscopic Examination

Meaning of Cystoscopic Examination:Cystoscopy is an essential diagnostic tool in urology that is used to assess the structure and function of the genitourinary system. It provides a direct view of the urethra, bladder, and, in some cases, the ureteral openings. This procedure helps detect structural abnormalities, infections, cancers, and blockages in the urinary tract. There are two types of cystoscopy:Flexible cystoscopy is commonly performed in outpatient settings due to its less invasive...
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:

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Related Experiment Video

Updated: Jun 10, 2026

Autonomous and Rechargeable Microneurostimulator Endoscopically Implantable into the Submucosa
08:17

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Published on: September 27, 2018

[A wireless power transmission system for capsule endoscope].

Wenhui Xin1, Guozheng Yan, Wenxing Wang

  • 1Medical Precision Engineering &Intelligent System Lab, Shanghai Jiaotong University, Shanghai 200240, China.

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi = Journal of Biomedical Engineering = Shengwu Yixue Gongchengxue Zazhi
|July 24, 2010
PubMed
Summary

A novel wireless power system using electromagnetic coupling delivers stable power to capsule endoscopes. This system ensures reliable energy for devices navigating the digestive tract, regardless of their position or orientation.

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Area of Science:

  • Biomedical Engineering
  • Electrical Engineering
  • Medical Devices

Context:

  • Capsule endoscopes require a stable power source for diagnostic procedures within the gastrointestinal tract.
  • The dynamic movement and changing orientation of capsule endoscopes pose challenges for traditional power delivery methods.
  • Wireless power transmission is crucial for untethered endoscopic devices.

Purpose:

  • To propose and validate a wireless power transmission system for capsule endoscopes based on electromagnetic coupling.
  • To ensure stable power delivery to the capsule endoscope irrespective of its position and orientation within the body.
  • To design and implement a Helmholtz transmitting coil and a three-dimensional receiving coil system.

Summary:

  • A wireless power system utilizing electromagnetic coupling was developed, featuring a Helmholtz transmitting coil and a 3D receiving coil.
  • The system generates a uniform magnetic field for consistent power reception, overcoming challenges posed by the capsule endoscope's movement.
  • Experimental results demonstrate the transmission of at least 320 mW of usable power to a randomly positioned and oriented capsule endoscope with 25W transmitting power.

Impact:

  • Enables reliable and continuous operation of capsule endoscopes, enhancing diagnostic capabilities.
  • Paves the way for more advanced, untethered medical devices within the alimentary tract.
  • Addresses a key technical challenge in the development of next-generation ingestible medical technologies.