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Magnetic anchor for more effective endoscopic mucosal resection
Toshiaki Kobayashi1, Takushi Gotohda, Katsunori Tamakawa
1Cancer Screening Technology Division, Research Center for Cancer Prevention and Screening, National Cancer Center, 1-1 Tsukiji 5-chome, Chuo-ku, Tokyo 104-0045, Japan. tkobayas@ncc.go.jp
Japanese Journal of Clinical Oncology
|April 14, 2004
Summary
A novel magnetic anchor system simplifies endoscopic mucosal resection (EMR) for gastric cancer. This device assists surgeons, making EMR safer and quicker for early gastric cancer treatment.
Area of Science:
- Gastroenterology
- Minimally Invasive Surgery
- Biomedical Engineering
Background:
- Endoscopic mucosal resection (EMR) for gastric cancer is challenging due to its "one-handed surgery" nature.
- Technical difficulties limit EMR application to larger gastric lesions, despite patient suitability.
- Assistance with microforceps could enhance EMR ease and safety.
Purpose of the Study:
- To develop and evaluate a magnetic anchor system for assisting EMR.
- To overcome technical limitations in EMR of gastric cancer.
Main Methods:
- A magnetic anchor was developed, incorporating microforceps (endoscopic clips) and a magnetic weight.
- A magnetic control system with an electromagnet and positional frame was utilized.
- The system was tested in swine, performing EMR using the magnetic anchor and endoscope.
Main Results:
- The magnetic anchor effectively stabilized and retracted mucosa for resection.
- EMR performance was enhanced, irrespective of endoscopist skill or anatomical location.
- The device facilitated a smoother EMR procedure.
Conclusions:
- The magnetic anchor addresses technical challenges in EMR.
- This innovation shows potential for improving safety and speed in early gastric cancer treatment.
- The magnetic anchor could expand EMR indications for gastric cancer.