Frame mapping and force feedback methods, devices and systems
First Claim
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1. A method for controlling movement of a robotic arm of a medical robot system, the robotic arm operatively associated with a tool, the medical robot system comprising:
- a medical robot under operator control having at least one robotic arm,a camera configured to provide an image of the tool, anda reference structure having a fixed orientation relative to the camera, the method comprising;
a. receiving an input value from a controller device representative of a desired motion of the tool, wherein the input value is expressed in a controller device coordinate system;
b. determining a calculated motion of the tool based on the input value,wherein the calculated motion is expressed in an observer coordinate system that comprises a first axis oriented in fixed relation with an axis of the tool and a second axis oriented orthogonal to the first axis and such that its projection into a plane defined by X and Y axes of an orthogonal coordinate system defined relative to the reference structure is parallel to and pointing in the same direction as the X axis;
c. determining a commanded motion of the robotic arm based on the calculated motion and the position of the robotic arm; and
d. outputting an actuation signal to move the robotic arm in accordance with the commanded motion.
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Abstract
Methods, devices, and systems for controlling movement of a slave manipulator by an operator controlling a master manipulator in a way that the motion of that slave manipulator can be presented via a display to the operator such that the displayed position of the slave manipulator is intuitive to the operator, regardless of the actual position and orientation of the slave manipulator. Methods, devices, and systems relating to force feedback associated with medical robotic procedures.
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Citations
19 Claims
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1. A method for controlling movement of a robotic arm of a medical robot system, the robotic arm operatively associated with a tool, the medical robot system comprising:
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a medical robot under operator control having at least one robotic arm, a camera configured to provide an image of the tool, and a reference structure having a fixed orientation relative to the camera, the method comprising; a. receiving an input value from a controller device representative of a desired motion of the tool, wherein the input value is expressed in a controller device coordinate system; b. determining a calculated motion of the tool based on the input value, wherein the calculated motion is expressed in an observer coordinate system that comprises a first axis oriented in fixed relation with an axis of the tool and a second axis oriented orthogonal to the first axis and such that its projection into a plane defined by X and Y axes of an orthogonal coordinate system defined relative to the reference structure is parallel to and pointing in the same direction as the X axis; c. determining a commanded motion of the robotic arm based on the calculated motion and the position of the robotic arm; and d. outputting an actuation signal to move the robotic arm in accordance with the commanded motion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A control system configured to control movement of at least one robotic arm of a medical robot system, the robotic arm operatively associated with a tool, the medical robot system comprising:
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a medical robot under operator control having at least one robotic arm, a camera configured to provide an image of the tool, and a reference structure having a fixed orientation relative to the camera, the control system comprising; a computing device operatively associated with the medical robot, wherein the computing device is configured to receive an input value from a controller device representative of a desired motion of the tool, wherein the input value is expressed in a controller device coordinate system;
determine a calculated motion of the tool based on the input value, wherein the calculated motion is expressed in an observer coordinate system that comprises a first axis oriented in fixed relation with an axis of the tool and a second axis oriented orthogonal to the first axis and such that its projection into a plane defined by X and Y axes of an orthogonal coordinate system defined relative to the reference structure is parallel to and pointing in the same direction as the X axis;
determine a commanded motion of the robotic arm based on the calculated motion and the position of the robotic arm; and
output an actuation signal to move the robotic arm in accordance with the commanded motion, andat least one controller device operatively associated with the computing device and configured to receive an input of a desired movement of the robotic arm. - View Dependent Claims (19)
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Specification