A 40 MHz high frequency ultrasound embedded epidural needle for assistingepidural access in pig study

Chih Shiang Liu, Huihua Kenny Chiang, Chien Kun Ting*, Qifa Zhou, K. Kirk Shung

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Anesthesiologists rely on his or her hand-feeling and experience to insertthe epidural needle into the epidural space when conducting epidural anesthesia.With no direct guiding and reporting on the distance between the epiduralneedle and the epidural space, this practice is fully depending onanesthesiologist's experience. Hence, it is a challenge for the less experiencedanesthesiologist to properly insert the epidural needle into the epiduralspace. In this study, we have developed a high frequency needle ultrasoundtransducer to assist the epidural space access. By inserting the high frequencyneedle ultrasound transducer into the hollow chamber of the epidural needle, thedistance between the tip of the epidural needle, ligament flavum, and duramater can be measured in real time by monitoring the reflected ultrasound signalin A-mode display. We have successfully applied the needle ultrasoundtransducer to assist in vivo epidural space insertion in a porcine model.

Original languageEnglish
Title of host publication2010 IEEE International Ultrasonics Symposium, IUS 2010
Pages1803-1808
Number of pages6
DOIs
StatePublished - 2010
Event2010 IEEE International Ultrasonics Symposium, IUS 2010 - San Diego, CA, United States
Duration: 11 Oct 201014 Oct 2010

Publication series

NameProceedings - IEEE Ultrasonics Symposium
ISSN (Print)1051-0117

Conference

Conference2010 IEEE International Ultrasonics Symposium, IUS 2010
Country/TerritoryUnited States
CitySan Diego, CA
Period11/10/1014/10/10

Keywords

  • dura mater
  • epidural space
  • ligamentum flavum
  • ultrasound needle transducer

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