Method and system to sense relative partial-pose information using a shape sensor
First Claim
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1. An apparatus comprising:
- a kinematic chain comprising a proximal link and a distal link; and
a shape-sensing segment, extending between said proximal link and said distal link, having a mechanically-constrained permanent pre-set transition,wherein the permanent pre-set transition is between a first position in said proximal link and a second position in said distal link, andwherein the proximal link comprises a first axis,wherein the first axis intersects the first position, andwherein the second position is displaced from the first axis so that the second position is displaced axially from the first position.
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Abstract
A shape-sensing segment traverses through at least a portion of a kinematic chain of a tele-operated slave surgical instrument in a tele-operated minimally-invasive surgical system. The shape-sensing segment includes a pre-set perturbation. Shape information from the pre-set perturbation allows determination of relative partial-pose information for at least one link in the kinematic chain.
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Citations
20 Claims
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1. An apparatus comprising:
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a kinematic chain comprising a proximal link and a distal link; and a shape-sensing segment, extending between said proximal link and said distal link, having a mechanically-constrained permanent pre-set transition, wherein the permanent pre-set transition is between a first position in said proximal link and a second position in said distal link, and wherein the proximal link comprises a first axis, wherein the first axis intersects the first position, and wherein the second position is displaced from the first axis so that the second position is displaced axially from the first position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method comprising:
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receiving information from a mechanically-constrained permanent pre-set transition in a shape-sensing segment, wherein said permanent pre-set transition is formed as said shape-sensing segment passes from a first position in a proximal link to a second position in a distal link in a kinematic chain of a surgical device, wherein the proximal link comprises a first axis, wherein the first axis intersects the first position, and wherein the second position is displaced from the first axis so that the second position is displaced axially from the first position generating, by a processor from said received information, relative partial-pose information for said proximal link and said distal link. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification