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Scanning miniature optical probes with optical distortion correction and rotational control

A technology of optical probes and light beams, applied in the direction of optics, optical components, optical devices, etc., can solve the problem that the fluid cannot be in contact with the imaging tip

Inactive Publication Date: 2005-10-19
LIGHTLAB IMAGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Placing this fluid into a separate lumen formed inside the main catheter as described in the '127 patent would increase the bulk of the overall device and the fluid would not be in contact with the imaging tip nor would ultrasonic energy be passed through the fluid as in the present invention spread

Method used

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  • Scanning miniature optical probes with optical distortion correction and rotational control
  • Scanning miniature optical probes with optical distortion correction and rotational control
  • Scanning miniature optical probes with optical distortion correction and rotational control

Examples

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Embodiment Construction

[0025] figure 1 An example of an imaging lens embodiment is shown. In this embodiment, a single mode fiber 10 is bonded or fixed to the lens 12 . The lens 12 has approximately the same diameter as the fiber 10 . Fiber 10 includes several different thin protective coatings. The beam directing means 14, in this embodiment a 45 degree (or other suitable angle) folded mirror, is attached to the lens 12 using fusion bonding or glue. The folding mirror 14 can be coated with a high reflectance material or operate on the principle of total internal reflection. about figure 1 As shown, in the illustrated embodiment, the length of the working distance 16 of the lens 12 is from the surface 18 of the fold mirror 14 to the waist position 20 of the Gaussian beam. The combination of lens 12 and beam directing element 14 amplifies (or reduces) the beam waist originally located at the exit of single-mode fiber 10 and creates a new beam waist 20 at a circular spot located at working distan...

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PUM

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Abstract

Optical probes having a diameter less than substantially 500 mum for use in scanning light from a long, highly flexible fiber to a sample. In one embodiment the probe includes a viscous damping fluid suitable to prevent non-uniform rotational distortion (NURD).

Description

technical field [0001] The invention relates to the design, manufacture and application of an ultra-miniature scanning imaging probe, more specifically, to the design, manufacture and application of an ultra-miniature scanning imaging probe with the function of preventing rotation distortion. Background technique [0002] There is an urgent need to develop and manufacture ultra-small scanning optical probes. Such probes require ultra-compact imaging lenses and corresponding scanning and beam-steering elements. Such probes could be used in optical coherence tomography (OCT) and other interferometric imaging and ranging systems, as well as transmission or medical light sources for other imaging modalities such as fluorescence. Future medical (and non-medical) optical probes require these small probes to access tiny and tortuous passages such as arteries, veins, and the airways of the lungs. While the diameter of the probe must be less than 500 micrometers, while the working ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B23/26A61B1/00A61B5/00G02B23/24
CPCA61B5/6852G01B9/0205A61B5/0084A61B5/0066G02B23/2407G01B9/02091
Inventor 克里斯托弗·L·彼得森爱德华·I·麦克纳马拉罗纳德·B·兰波特麦克尔·阿特拉斯约瑟夫·M·施米特保罗·马格宁埃里克·A·斯旺森
Owner LIGHTLAB IMAGING
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