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Related Concept Videos

Classification of Bones01:18

Classification of Bones

The bones of the human skeletal system are of varied shapes, sizes, and functions. They can be classified based on their shape and function into four major classes: long bones, short bones, flat bones, and irregular bones. Some classifications include a fifth type, the sesamoid bones, as a separate class, whereas others categorize them under short bones.
Long and Short Bones
The appendicular skeleton, particularly the upper and lower limbs, is primarily made of long and short bones. The long...
Functional Classification of Joints01:09

Functional Classification of Joints

Functional Classification of Joints
The functional classification of joints is determined by the amount of mobility between the adjacent bones. Joints are functionally classified as a synarthrosis or immobile joint, an amphiarthrosis or slightly moveable joint, or as a diarthrosis, a freely moveable joint. Fibrous and cartilaginous joints can be functionally classified as either synarthroses  or amphiarthroses, whereas all synovial joints are classified as diarthroses.
Synarthrosis
An immobile...
Structural Classification of Joints01:20

Structural Classification of Joints

Joints, also known as articulations, are classified based on their structural characteristics, i.e., based on whether the articulating surfaces of the adjacent bones are directly connected by fibrous connective tissue or cartilage, or whether the articulating surfaces contact each other within a fluid-filled joint cavity. These differences serve to divide the joints of the body into three structural classifications.
A fibrous joint is where the adjacent bones are united by fibrous connective...

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Related Experiment Video

Updated: May 15, 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

Feature classification for tracking articulated surgical tools.

Austin Reiter1, Peter K Allen, Tao Zhao

  • 1Columbia University, New York, NY, USA. areiter@cs.columbia.edu

Medical Image Computing and Computer-Assisted Intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention
|January 5, 2013
PubMed
Summary
This summary is machine-generated.

This study presents a novel tool tracking system for computer-aided surgery. It learns visual features to precisely track articulated surgical instruments using stereo vision and robot kinematics.

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Last Updated: May 15, 2026

Automatic Surgery in Transcatheter Aortic Valve Replacement Using Augmented Reality
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Automatic Surgery in Transcatheter Aortic Valve Replacement Using Augmented Reality

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Three-Dimensional Finger Motion Tracking during Needling: A Solution for the Kinematic Analysis of Acupuncture Manipulation
08:27

Three-Dimensional Finger Motion Tracking during Needling: A Solution for the Kinematic Analysis of Acupuncture Manipulation

Published on: October 28, 2021

Area of Science:

  • Computer-aided surgery
  • Robotics
  • Surgical instrumentation

Background:

  • Tool tracking is crucial for computer-aided surgical interventions.
  • Existing methods have limitations in tracking complex articulated instruments.

Purpose of the Study:

  • To develop and evaluate a novel tool tracking system for articulated surgical instruments.
  • To enhance precision and capabilities in minimally-invasive procedures.

Main Methods:

  • Learning class-specific visual feature descriptors as landmarks on articulated tools.
  • Localizing features in 3D using stereo vision.
  • Fusing visual data with robot kinematics for joint tracking.

Main Results:

  • Successful tracking of all joints of a dexterous manipulator.
  • Demonstrated feasibility using porcine data from a surgical robot.

Conclusions:

  • The developed system offers a robust solution for articulated tool tracking in surgical robotics.
  • This technology has significant potential for improving minimally-invasive surgical interventions.