Control of robotic arm motion based on sensed load on cutting tool
First Claim
1. A robotic surgical system comprising:
- a robotic arm;
a tool assembly coupled to the robotic arm, the tool assembly comprisinga shaft extending distally from a housing;
an end effector coupled to a distal end of the shaft; and
a sensor assembly that is configured to sense a force applied to a distal end of the end effector; and
a control system configured to control, based on the sensed force applied to the distal end of the end effector, a velocity of movement of the robotic arm, wherein the control of the velocity of movement of the robotic arm is at least one of increasing or decreasing the velocity of movement.
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Accused Products
Abstract
A robotic surgical system including a control system that controls the movement of a robotic arm is described. The robotic arm can be coupled to a tool assembly that includes an end effector positioned at a distal end of a shaft. The control system can assist with controlling the movement of the end effector and any tooling (e.g., cutting tool, boring tool, jaws, etc.) associated with the end effector, such as for either cutting through tissue or controlling a tension in the tissue. The tool assembly can include one or more sensors that measure a variety of forces or velocities associated with either the robotic arm or end effector. The control system can collect and monitor such sensed forces and velocities to determine and control one or more appropriate movement parameters associated with the robotic arm thereby controlling the cutting of tissue and preventing unwanted cutting of tissue. Furthermore, movement parameters associated with more than one robotic arm can be controlled by the control system.
223 Citations
18 Claims
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1. A robotic surgical system comprising:
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a robotic arm; a tool assembly coupled to the robotic arm, the tool assembly comprising a shaft extending distally from a housing; an end effector coupled to a distal end of the shaft; and a sensor assembly that is configured to sense a force applied to a distal end of the end effector; and a control system configured to control, based on the sensed force applied to the distal end of the end effector, a velocity of movement of the robotic arm, wherein the control of the velocity of movement of the robotic arm is at least one of increasing or decreasing the velocity of movement. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method comprising:
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sensing a first force applied to a distal end of an end effector located at a distal end of a shaft of a tool assembly, the tool assembly being coupled to a robotic arm of a robotic surgical system; and controlling, based on the sensed first applied force, a velocity of movement of the robotic arm, wherein the controlling of the velocity of movement of the robotic arm is at least one of oncreasing or decreasing the velocity of movement. - View Dependent Claims (15, 16, 17, 18)
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Specification