Micro hydraulic bending actuator for minimally invasive medical device

Miyuki Matsuo, Kunihiro Abe, Shinichiro Suda, Tadao Matsunaga, Yoichi Haga

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

Micro hydraulic actuators have been fabricated to improve the operability of minimally invasive medical instruments, such as guidewires, catheters, and endoscopes. The actuators consist of a metal spring coil, evaporated parylene membrane, and a metal wire. Since parylene is used as the membrane, the actuator can be made with a diameter smaller than 1 mm and several actuators can be batch fabricated. As shown in Fig.1, the actuator elongates except for the side that is restricted by a metal wire when water is injected, allowing the actuator to bend. Since the actuators use water to achieve the bending motion and consist of biocompatible materials, they are safe in the human body.

Original languageEnglish
Title of host publication2013 Transducers and Eurosensors XXVII
Subtitle of host publicationThe 17th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2013
Pages1440-1443
Number of pages4
DOIs
Publication statusPublished - 2013 Dec 1
Event2013 17th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2013 - Barcelona, Spain
Duration: 2013 Jun 162013 Jun 20

Publication series

Name2013 Transducers and Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2013

Other

Other2013 17th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2013
CountrySpain
CityBarcelona
Period13/6/1613/6/20

Keywords

  • Hydraulic actuator
  • guidewire
  • micro
  • parylene

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering

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