A new manometry device for evaluating the sphincter of Oddi using a fiber-optic pressure sensor

Takashi Hanzawa, Tadao Matsunaga, Tomoyuki Koike, Atsushi Kanno, Atsushi Masamune, Katsunori Iijima, Tooru Shimosegawa, Yoichi Haga

Research output: Contribution to journalArticlepeer-review

Abstract

Introduction: Although measuring the pressure of the sphincter of Oddi and the bile duct is considered to be an important examination, called Sphincter of Oddi manometry (SOM), some complications related to the SOM device remain unsolved. Material and methods: To decrease adverse complications, we developed a 0.46 mm manometry and we performed some in vitro studies. Results: We successfully developed a 0.46 mm SOM. The diameter is the thinnest size used in endoscopic examinations. The results of in vitro studies show the suitability as SOM. Conclusion: This device will decrease the risks related to SOM examination. To confirm the safety and feasibility, further studies including in vivo studies will be needed.

Original languageEnglish
Pages (from-to)226-232
Number of pages7
JournalMinimally Invasive Therapy and Allied Technologies
Volume27
Issue number4
DOIs
Publication statusPublished - 2018 Jul 4

Keywords

  • Sphincter of Oddi disorder (SOD)
  • fiber-optic pressure sensor
  • sphincter of Oddi manometry (SOM)

ASJC Scopus subject areas

  • Surgery

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