Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Single twistable tendon-driven continuum robots.

Nature communications·2026
Same author

Clinical quality of breath-held T1-weighted breast MRI in the supine position.

European journal of radiology·2026
Same author

A Lightweight Multi-Articular Passive Exoskeleton Using a Single Elastic Band to Improve Crouch Gait Pattern: A Pilot Study.

IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society·2026
Same author

Correction: Development and validation of a sliding type continuous passive motion automation device for evaluation and rehabilitation of frozen shoulder.

Frontiers in rehabilitation sciences·2026
Same author

On the Systematic Design Framework for Intuitive Interfaces in Telerobotic Operations: A Case Study in Surgical Robotics.

IEEE transactions on haptics·2026
Same author

Standalone Augmented Reality Neuronavigation System for Accurate Pulse Delivery in Transcranial Magnetic Stimulation.

IEEE transactions on visualization and computer graphics·2026

Related Experiment Video

Updated: Mar 31, 2026

Convection Enhanced Delivery of Optogenetic Adeno-associated Viral Vector to the Cortex of Rhesus Macaque Under Guidance of Online MRI Images
08:52

Convection Enhanced Delivery of Optogenetic Adeno-associated Viral Vector to the Cortex of Rhesus Macaque Under Guidance of Online MRI Images

Published on: May 23, 2019

7.5K

Design of an Optically Controlled MR-Compatible Active Needle.

Seok Chang Ryu1, Zhan Fan Quek1, Je-Sung Koh2

  • 1Stanford University, Stanford, CA 94305 USA.

IEEE Transactions on Robotics : a Publication of the IEEE Robotics and Automation Society
|October 30, 2015
PubMed
Summary
This summary is machine-generated.

This study introduces an active needle for MRI-guided procedures, utilizing a shape memory alloy actuator for precise bending. The developed needle demonstrates effective deflection, compensating for targeting errors in prostate biopsies.

Keywords:
Active needlemechanism designmedical robots and systemsoptical actuation and sensing

More Related Videos

Author Spotlight: Enhancing Microinjection Needle Quality by Wet Beveling
06:00

Author Spotlight: Enhancing Microinjection Needle Quality by Wet Beveling

Published on: September 27, 2024

921
Magnetically-Assisted Remote Controlled Microcatheter Tip Deflection under Magnetic Resonance Imaging
11:27

Magnetically-Assisted Remote Controlled Microcatheter Tip Deflection under Magnetic Resonance Imaging

Published on: April 4, 2013

13.0K

Related Experiment Videos

Last Updated: Mar 31, 2026

Convection Enhanced Delivery of Optogenetic Adeno-associated Viral Vector to the Cortex of Rhesus Macaque Under Guidance of Online MRI Images
08:52

Convection Enhanced Delivery of Optogenetic Adeno-associated Viral Vector to the Cortex of Rhesus Macaque Under Guidance of Online MRI Images

Published on: May 23, 2019

7.5K
Author Spotlight: Enhancing Microinjection Needle Quality by Wet Beveling
06:00

Author Spotlight: Enhancing Microinjection Needle Quality by Wet Beveling

Published on: September 27, 2024

921
Magnetically-Assisted Remote Controlled Microcatheter Tip Deflection under Magnetic Resonance Imaging
11:27

Magnetically-Assisted Remote Controlled Microcatheter Tip Deflection under Magnetic Resonance Imaging

Published on: April 4, 2013

13.0K

Area of Science:

  • Medical Devices
  • Biomedical Engineering
  • Minimally Invasive Surgery

Background:

  • Percutaneous procedures require precise instrument navigation.
  • Magnetic Resonance Imaging (MRI) offers excellent soft-tissue visualization for guidance.
  • Existing needles lack active steering capabilities, limiting maneuverability in complex anatomies.

Purpose of the Study:

  • To develop and evaluate an active needle for MRI-guided percutaneous procedures.
  • To enable controlled bending of the needle's distal tip for enhanced targeting.
  • To assess the needle's performance in mimicking human tissue conditions.

Main Methods:

  • An active needle prototype was designed using a low-transition-temperature shape memory alloy (LT SMA) wire actuator.
  • Optical fibers delivered laser light for internal heating and actuation of the LT SMA.
  • A prototype comparable to a 16-gauge biopsy needle was fabricated and tested.
  • An optical sensor measured needle curvature, independent of temperature variations.
  • Performance was evaluated in air, hard tissue, and tissue phantoms simulating prostate biopsy conditions.

Main Results:

  • The active needle prototype achieved significant tip deflection, exceeding 14° in air and 5° in hard tissue.
  • Experimental results indicated rapid heat dissipation from the actuator within human tissue.
  • The active needle demonstrated the capability to compensate for typical targeting errors encountered during prostate biopsy.
  • The optical curvature sensor provided reliable measurements, unaffected by temperature fluctuations.

Conclusions:

  • The developed active needle offers enhanced maneuverability for MRI-guided percutaneous interventions.
  • The LT SMA actuator and optical heating system provide effective and controllable needle bending.
  • The active needle shows promise for improving targeting accuracy and compensating for anatomical challenges in procedures like prostate biopsy.