Application of force feedback on an input device to urge its operator to command an articulated instrument to a preferred pose
First Claim
1. A method for urging operator manipulation of an input device to command an articulated instrument to a preferred pose at a work site, the method comprising:
- generating a commanded pose of the articulated instrument in response to operator manipulation of an input device;
receiving information of a first static pose for the articulated instrument, the first static pose predefined by at least one of an instrument type of the articulated instrument and a current operating mode of the articulated instrument;
generating a first preferred pose by using a dynamically changed version of the first static pose, the dynamically changed version of the first static pose generated by automatically changing the first static pose according to information of one or more other articulated instruments disposed at the work site;
generating first force commands for a plurality of degrees of freedom of the input device so as to increase as a difference between the first preferred pose and the commanded pose increases; and
applying the first force commands to the plurality of degrees of freedom of the input device by phasing in their application according to a first activation signal that increases in magnitude over a transition period.
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Abstract
A medical robotic system includes an entry guide with articulated instruments extending out of its distal end. A controller is configured to command manipulation an articulated instrument in response to operator manipulation of an associated input device while generating a force command to the input device that nudges the operator to command the instrument to a preferred pose. When a transition is to occur between first and second preferred poses, one is phased in while the other is phased out. Virtual barriers may be imposed to prevent the articulated instrument from being commanded to an undesirable pose.
472 Citations
28 Claims
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1. A method for urging operator manipulation of an input device to command an articulated instrument to a preferred pose at a work site, the method comprising:
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generating a commanded pose of the articulated instrument in response to operator manipulation of an input device; receiving information of a first static pose for the articulated instrument, the first static pose predefined by at least one of an instrument type of the articulated instrument and a current operating mode of the articulated instrument; generating a first preferred pose by using a dynamically changed version of the first static pose, the dynamically changed version of the first static pose generated by automatically changing the first static pose according to information of one or more other articulated instruments disposed at the work site; generating first force commands for a plurality of degrees of freedom of the input device so as to increase as a difference between the first preferred pose and the commanded pose increases; and applying the first force commands to the plurality of degrees of freedom of the input device by phasing in their application according to a first activation signal that increases in magnitude over a transition period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A robotic system comprising:
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an input device; a non-volatile memory; an articulated instrument; one or more other articulated instruments; and a processor programmed to; receive information of a first static pose for the articulated instrument from the non-volatile memory, the first static pose predefined by at least one of an instrument type of the articulated instrument and a current operating mode of the articulated instrument; generate a first preferred pose by using a dynamically changed version of the first static pose, the dynamically changed version of the first static pose generated by automatically changing the first static pose according to information of the one or more other articulated instruments; generate a commanded pose of the articulated instrument in response to operator manipulation of the input device, generate first force commands for a plurality of degrees of freedom of the input device so as increase as a difference between the first preferred pose and the commanded pose increases; and command application of the first force commands on the plurality of degrees of freedom of the input device so as to phase in their application according to a first activation signal that increases in magnitude over a transition period. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification