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OCDR guided laser ablation device

Patent ·
OSTI ID:874731
 [1];  [2]
  1. Danville, CA
  2. Tracy, CA
+ Show Author Affiliations

A guided laser ablation device. The device includes a mulitmode laser ablation fiber that is surrounded by one or more single mode optical fibers that are used to image in the vicinity of the laser ablation area to prevent tissue damage. The laser ablation device is combined with an optical coherence domain reflectometry (OCDR) unit and with a control unit which initializes the OCDR unit and a high power laser of the ablation device. Data from the OCDR unit is analyzed by the control unit and used to control the high power laser. The OCDR images up to about 3 mm ahead of the ablation surface to enable a user to see sensitive tissue such as a nerve or artery before damaging it by the laser.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA
DOE Contract Number:
W-7405-ENG-48
Assignee:
The Regents of the University of California (Oakland, CA)
Patent Number(s):
US 6451009
OSTI ID:
874731
Country of Publication:
United States
Language:
English

References (6)

Birefringence characterization of biological tissue by use of optical coherence tomography journal January 1998
Guided-wave reflectometry with micrometer resolution journal January 1987
High-resolution reflectometry in biological tissues journal January 1992
Optical coherence-domain reflectometry: a new optical evaluation technique journal January 1987
Polarization-sensitive low-coherence reflectometer for birefringence characterization and ranging journal January 1992
Scanning single-mode fiber optic catheter–endoscope for optical coherence tomography journal January 1996

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/606/356/
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ahead
analyzed
artery
coherence
combined
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data
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mulitmode
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ocdr
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