SYSTEM AND METHOD FOR MINIMIZING TWIST FOR OPTICAL SHAPE SENSING ENABLED INSTRUMENTS
First Claim
1. A shape sensing system, comprising:
- a guide tube;
an optical shape sensing device including one or more optical fibers and being proximally fixed at a fixation point and being disposed within the guide tube; and
an interventional instrument rigidly attached to a handle to prevent rotation of the instrument relative to the handle, the instrument having a lumen configured to receive the guide tube therein such that the optical shape sensing device is unconstrained throughout the instrument and the handle, and the guide tube is free to slip relative to at least rotation of the instrument and the handle without transferring torsional friction to optical shape sensing device.
1 Assignment
0 Petitions
Accused Products
Abstract
A shape sensing system includes a guide tube (304) and an optical shape sensing device (104) including one or more optical fibers and being proximally fixed at a fixation point and being disposed within the guide tube. An interventional instrument (102) is rigidly attached to a handle (212) to prevent rotation of the instrument relative to the handle. The instrument has a lumen configured to receive the guide tube therein such that the optical shape sensing device is unconstrained throughout the instrument and the handle, and the guide tube is free to slip relative to at least rotation of the instrument and the handle without transferring torsional friction to optical shape sensing device.
1 Citation
20 Claims
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1. A shape sensing system, comprising:
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a guide tube; an optical shape sensing device including one or more optical fibers and being proximally fixed at a fixation point and being disposed within the guide tube; and an interventional instrument rigidly attached to a handle to prevent rotation of the instrument relative to the handle, the instrument having a lumen configured to receive the guide tube therein such that the optical shape sensing device is unconstrained throughout the instrument and the handle, and the guide tube is free to slip relative to at least rotation of the instrument and the handle without transferring torsional friction to optical shape sensing device. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. (canceled)
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9. A shape sensing system, comprising:
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a workstation includes a processor and memory, the memory storing a shape sensing module configured to interpret optical shape sensing signals during an interventional procedure; a launch unit includes an optical fixation point for sending and receiving optical signals; a guide tube being proximally fixed at a mount point distally disposed from the fixation point; an optical shape sensing device including one or more optical fibers and being proximally fixed at the fixation point and being disposed within the guide tube; and an interventional instrument rigidly attached to a handle to prevent rotation of the instrument relative to the handle, the instrument having a lumen configured to receive the guide tube therein such that the optical shape sensing device is unconstrained throughout the instrument and the handle, and the guide tube is free to slip relative to at least rotation of the instrument and the handle without transferring torsional friction to optical shape sensing device. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. (canceled)
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17. A shape sensing system, comprising:
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an optical shape sensing device including one or more optical fibers and being proximally fixed at a fixation point; and an interventional instrument rigidly attached to a handle to prevent rotation of the instrument relative to the handle, the instrument having a lumen configured to receive the optical shape sensing device, which is constrained at at least one location in the instrument; a bearing included in the handle and configured to receive and attach to a protective tube wherein the handle is free to rotate relative to the bearing and the protective tube, the protective tube encapsulating the optical shape sensing device between a fixation position, at or near the fixation point, and the handle; and a clutch configured to engage the bearing to prevent rotation of the handle relative to the protective tube in accordance with an event.
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18. (canceled)
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19. (canceled)
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20. (canceled)
Specification