Ratcheting for master alignment of a teleoperated minimally-invasive surgical instrument
First Claim
1. A surgical system comprising:
- a slave surgical instrument having a slave surgical instrument tip wherein said slave surgical instrument tip has an alignment in a common coordinate frame of reference;
a master grip, coupled to said slave surgical instrument, having an alignment in said common coordinate frame of reference,wherein an alignment error in said common frame of reference is a difference in alignment in said common frame of reference between said alignment of said slave surgical instrument tip and said alignment of said master grip; and
a ratcheting system coupled to said master grip to receive said alignment of said master grip and coupled to said slave surgical instrument,wherein the ratcheting system is configured to control motion of said slave surgical instrument tip by continuously reducing the alignment error as said master grip moves, without autonomous motion of said slave surgical instrument tip and without autonomous motion of said master grip, by bleeding off said alignment error,wherein the bleeding off said alignment error uses a new alignment error in said common frame of reference when said motion of said master grip reduces said alignment error in said common frame of reference,wherein the bleeding off said alignment error uses a current alignment error in said common frame of reference when the motion of said master grip does not reduces said alignment error, andwherein the bleeding off said alignment error continuously reduces said alignment error between said alignments in said common frame of reference.
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Accused Products
Abstract
A minimally-invasive surgical system includes a slave surgical instrument having a slave surgical instrument tip and a master grip. The slave surgical instrument tip has an alignment in a common frame of reference and the master grip, which is coupled to the slave surgical instrument, has an alignment in the common frame of reference. An alignment error, in the common frame of reference, is a difference in alignment between the alignment of the slave surgical instrument tip and the alignment of the master grip. A ratcheting system (i) coupled to the master grip to receive the alignment of the master grip and (ii) coupled to the slave surgical instrument, to control motion of the slave by continuously reducing the alignment error, as the master grip moves, without autonomous motion of the slave surgical instrument tip and without autonomous motion of the master grip.
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Citations
20 Claims
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1. A surgical system comprising:
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a slave surgical instrument having a slave surgical instrument tip wherein said slave surgical instrument tip has an alignment in a common coordinate frame of reference; a master grip, coupled to said slave surgical instrument, having an alignment in said common coordinate frame of reference, wherein an alignment error in said common frame of reference is a difference in alignment in said common frame of reference between said alignment of said slave surgical instrument tip and said alignment of said master grip; and a ratcheting system coupled to said master grip to receive said alignment of said master grip and coupled to said slave surgical instrument, wherein the ratcheting system is configured to control motion of said slave surgical instrument tip by continuously reducing the alignment error as said master grip moves, without autonomous motion of said slave surgical instrument tip and without autonomous motion of said master grip, by bleeding off said alignment error, wherein the bleeding off said alignment error uses a new alignment error in said common frame of reference when said motion of said master grip reduces said alignment error in said common frame of reference, wherein the bleeding off said alignment error uses a current alignment error in said common frame of reference when the motion of said master grip does not reduces said alignment error, and wherein the bleeding off said alignment error continuously reduces said alignment error between said alignments in said common frame of reference. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of operating a surgical system comprising:
controlling, by a control system of the surgical system, alignment of a slave surgical instrument tip in the surgical system with alignment of a master grip in said surgical system, wherein the controlling alignment further comprises; receiving, by a ratcheting system in said control system, data representing an alignment of said slave surgical instrument tip in a common frame of reference and data representing an alignment of said master grip in said common frame of reference; and ratcheting, by said ratcheting system, said alignment of said slave surgical instrument tip to said alignment of said master grip by bleeding off an alignment error in said common frame of reference between said alignments, wherein the bleeding off comprises using a new alignment error in said common frame of reference when motion of said master grip reduces said alignment error in said common frame of reference, wherein the bleeding off comprises using a current alignment error in said common frame of reference when the motion of said master grip does not reduce said alignment error, and wherein the bleeding off continuously reduces said alignment error between said alignments in said common frame of reference. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
Specification