Related Experiment Video
Updated: May 8, 2026
09:48
A Friction Testing-Bioreactor Device for Study of Synovial Joint Biomechanics, Mechanobiology, and Physical Regulation
Published on: June 2, 2022
Dynamics of translational friction in needle-tissue interaction during needle insertion
Ali Asadian1, Rajni V Patel, Mehrdad R Kermani
1Canadian Surgical Technologies and Advanced Robotics (CSTAR), Lawson Health Research Institute, London, ON, Canada, aasadian@uwo.ca.
Annals of Biomedical Engineering
|August 22, 2013
Summary
This study introduces a new distributed model to accurately represent dynamic friction during soft tissue needle insertion. The approach improves understanding of friction
Area of Science:
- Robotics and Biomechanics
- Medical Device Engineering
- Soft Tissue Mechanics
Background:
- Friction is a complex, nonlinear phenomenon crucial in needle-tissue interaction.
- Classical friction models inadequately capture dynamics during needle insertion.
- Translational friction is significant for flexible needles or stop-and-rotate motions.
Purpose of the Study:
- To present a distributed approach for modeling dynamic friction in soft tissue needle insertion.
- To adopt a distributed LuGre model for characterizing friction components.
- To enable intra-operative estimation of cutting force.
Main Methods:
- Utilized a distributed version of the LuGre model in state-space representation.
- Developed and evaluated a novel family of friction models.
- Conducted experimental validation on artificial phantoms and animal tissue.
Main Results:
- The proposed models effectively represent key features of friction during needle insertion.
- Demonstrated the capability to capture dynamic friction phenomena.
- Showcased the potential for intra-operative cutting force estimation.
Conclusions:
- The distributed friction model accurately characterizes needle-tissue interaction forces.
- This approach enhances understanding and modeling of friction in medical interventions.
- The method offers a pathway for improved surgical tool control and feedback.
Related Concept Videos
01:21Characteristics of Dry Friction
Dry friction occurs when two solid surfaces slide against each other without any lubrication or fluid present. It causes resistance when pushing objects along a surface, like a gardener pushing a wheelbarrow. The force applied to move the cart causes dry friction between the wheel and the ground.
Before the wheelbarrow starts moving, the static frictional force acts tangentially to the contact surface, opposing the force that is about to induce the motion. This frictional force prevents the...
Before the wheelbarrow starts moving, the static frictional force acts tangentially to the contact surface, opposing the force that is about to induce the motion. This frictional force prevents the...
01:07Frictional Force
When a body is in motion, it encounters resistance because the body interacts with its surroundings. This resistance is known as friction, a common yet complex force whose behavior is still not completely understood. Friction opposes relative motion between systems in contact, but also allows us to move. Friction arises in part due to the roughness of surfaces in contact. For one object to move along a surface, it must rise to where the peaks of the surface can skip along the bottom of the...
01:05Static and Kinetic Frictional Force
One of the simpler characteristics of sliding friction is that it is parallel to the contact surfaces between systems, and is always in a direction that opposes the motion or attempted motion of the systems relative to each other. If two systems are in contact and moving relative to one another, then the friction between them is called kinetic friction. For example, kinetic friction slows a hockey puck sliding on ice.
However, if two systems are in contact and are stationary relative to one...
However, if two systems are in contact and are stationary relative to one...
01:26Kinetic Friction
Consider a truck trying to pull a stationary car. As the truck exerts a force on the car, static friction is created at the point of contact between the two surfaces. This frictional force resists the car's movement and keeps it at rest. However, when the applied force by the truck surpasses the limiting static frictional force, an interesting phenomenon occurs. The frictional force at the interface reduces to a lower value, known as the kinetic frictional force. At this point, the car begins...
01:30Dry Friction
Dry friction occurs between two solid surfaces in contact as they attempt to move relative to one another. In daily life, dry friction is encountered in various forms, such as when walking on the ground, sliding an object across a table, or rubbing hands together. Despite its ubiquity, the underlying mechanisms behind dry friction are not readily visible.
To illustrate this concept, imagine a wooden crate resting on a rough, non-uniform horizontal surface. When an external force is applied to...
To illustrate this concept, imagine a wooden crate resting on a rough, non-uniform horizontal surface. When an external force is applied to...
01:27Types of Friction Problems
Friction is an essential concept in physics, engineering, and everyday life. It is the force that opposes the relative motion or tendency of such motion between two surfaces in contact. One of the most common types of friction encountered in various applications is dry friction. Dry friction problems can be broadly categorized into three types, each with unique characteristics and challenges.
The first type of dry friction problem involves situations where there is no apparent impending motion.
The first type of dry friction problem involves situations where there is no apparent impending motion.