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Updated: Jun 6, 2026

Automatic Surgery in Transcatheter Aortic Valve Replacement Using Augmented Reality
07:46

Automatic Surgery in Transcatheter Aortic Valve Replacement Using Augmented Reality

Published on: August 9, 2024

Robotic-surgical instrument wrist pose estimation.

Stephan Fabel1, Kyungim Baek, Peter Berkelman

  • 1Human-Robot Interaction Laboratory, Department of Information and Computer Sciences, University of Hawaii at Mānoa, 2540 Dole St., Honolulu, HI 96822, USA. sfabel@hawaii.edu

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
|November 25, 2010
PubMed
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Bones of the Upper Limb: Radius01:09

Bones of the Upper Limb: Radius

The radius is longer of the two bones that make up the human antebrachium or forearm. At the proximal end, the radius articulates with the capitulum of the humerus and the radial notch of the ulna to form the elbow joint. At the distal end, the radius articulates with the ulna via the ulnar notch, forming the distal radioulnar joint. Distally, the radius also attaches to the carpal wrist bones (scaphoid and lunate) to form the radiocarpal joint.
The radius has a nail-shaped head, and a short...

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This study introduces a method to determine surgical robot tool positions using camera images, enhancing teleoperation accuracy. This allows for flexible robot setup without recalibration, improving surgical system usability.

Area of Science:

  • Robotics
  • Medical Devices
  • Computer Vision

Background:

  • Teleoperation systems require precise knowledge of robotic instrument and endoscope positions for accurate motion control.
  • Current systems often necessitate recalibration when manipulator bases are repositioned, limiting versatility.

Purpose of the Study:

  • To develop a method for estimating the pose (position and orientation) of surgical robot end effectors using endoscopic video imagery.
  • To enable flexible robot base positioning without compromising teleoperation accuracy.

Main Methods:

  • Utilized the P3P (Perspective-3-Point) pose estimation algorithm.
  • Employed Levenberg-Marquardt optimization to ensure robust convergence of the pose estimation.

Main Results:

Related Experiment Videos

Last Updated: Jun 6, 2026

Automatic Surgery in Transcatheter Aortic Valve Replacement Using Augmented Reality
07:46

Automatic Surgery in Transcatheter Aortic Valve Replacement Using Augmented Reality

Published on: August 9, 2024

  • Successfully estimated the pose of instrument end effectors from endoscopic camera views.
  • Demonstrated that coordinate transformations between master and slave manipulators can be accurately calculated and updated dynamically.

Conclusions:

  • The proposed vision-based pose estimation method enhances the versatility and ease of use of compact lightweight surgery robots.
  • This approach allows for arbitrary repositioning of manipulator bases without reinitialization, crucial for dynamic surgical environments.