12 Questions
What are some of the general requirements for medical position sensors?
Update rate, patient safety, accuracy, and number of targets simultaneously trackable
Which of the following is not considered a requirement for surgical position sensors?
Line-of-sight problems
What dimensions are usually necessary to determine the position of a tracked device?
3 degrees of freedom (3 DOF)
What range of tip measurement is usually required for surgical devices?
1–2 mm
Why is it possible for the positional accuracy requirement to be overspecified in some cases?
Anatomical changes and patient movement
What is a potential tolerance range for raw errors in specialized applications like electrophysiological mapping?
Several millimeters
What is a fundamental requirement of all surgical systems?
To know the location and trajectory of the end effector
In surgical robotic systems, how can the location and trajectory of the end effector be determined?
Either through encoders on the joints of the robot or an external measurement device
What has been used in the field of metrology?
Several types of position sensors
What is a characteristic of some position sensors used in medical devices?
Some are proprietary devices developed by individual manufacturers
What is NOT a type of position sensor used in IGI systems?
X-ray technology
What is a common application of position sensors?
Image-guided intervention and related fields
Explore the fundamental requirement of knowing the location and trajectory of the end effector in surgical systems. Learn about the use of external position sensors in conventional non-robotic image-guided intervention systems and how encoders on robot joints can provide this information in surgical robotic systems.
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