Ratcheting for master alignment of a teleoperated minimally invasive surgical instrument
First Claim
1. A method comprising:
- characterizing, by a ratcheting system in a surgical system, a first alignment error that is a difference between a first alignment of a master grip of the surgical system and a first alignment of a slave surgical instrument tip of a slave surgical instrument of the surgical system;
determining, by the ratcheting system, a new alignment error that is a difference between a second alignment of the master grip and the first alignment of the slave surgical instrument tip; and
using, by the ratcheting system, the new alignment error to control motion of the surgical instrument tip only if the new alignment error is smaller than the first alignment error.
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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.
71 Citations
13 Claims
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1. A method comprising:
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characterizing, by a ratcheting system in a surgical system, a first alignment error that is a difference between a first alignment of a master grip of the surgical system and a first alignment of a slave surgical instrument tip of a slave surgical instrument of the surgical system; determining, by the ratcheting system, a new alignment error that is a difference between a second alignment of the master grip and the first alignment of the slave surgical instrument tip; and using, by the ratcheting system, the new alignment error to control motion of the surgical instrument tip only if the new alignment error is smaller than the first alignment error. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification