Side viewing add-on endoscope for endoscopic cancer treatment

Takahisa Hiraragi, Takumi Kobayashi, Miyuki Matsuo, Shinichiro Suda, Tadao Matsunaga, Katsunori Iijima, Yoichi Haga

Research output: Contribution to journalArticlepeer-review


In this study, side viewing endoscope has been developed for cancer therapy. Polypectomy is a technique for treatment of early cancer and polyp in the gut. Endoscope can not observe backside of the lesion, because only front viewing is available. This device is available to add on for endoscope to observe the backside of the lesion. The device consists of a CMOS imager, two LEDs and a mirror to observe side view in front of CMOS imager. This device has hydraulic actuator or shape memory alloy (SMA) wire as bending mechanism. The external diameter of fabricated devices is 2.5 mm. The fabricated side viewing endoscope achieved to observe the backside of the lesion in the stomach model.

Original languageEnglish
Pages (from-to)O-476-O-477
JournalTransactions of Japanese Society for Medical and Biological Engineering
Publication statusPublished - 2014 Aug 17


  • Add-on side viewing endoscope
  • Hydraulic actuator
  • Shape memory alloy

ASJC Scopus subject areas

  • Biomedical Engineering


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