Fiber optic flow and oxygenation monitoring using diffuse correlation and reflectance
First Claim
Patent Images
1. A device, comprising:
- a first illuminator fiber having a longitudinal axis and having a distal end;
a first detector fiber having a distal end;
a tubular housing having a distal end, the tubular housing at least partially enclosing the first illumination fiber and the first detector fiber,wherein the distal end of the first detector fiber is at a different location, as measured along the longitudinal axis of the first illuminator fiber, than the location of the distal end of the first illuminator fiberthe first illuminator fiber being in optical communication with an illumination source configured to supply illumination from the first illuminator fiber at from about 600 nm to about 970 nm,the first detector fiber being in optical communication with a first illumination detector, andthe device being adapted for insertion into the spinal epidural space, the spinal intrathecal space, or both of a subject.
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Abstract
Disclosed are fiber optic devices and related methods that allow for measurement of blood flow and oxygenation in real time. These devices have particular application to the spinal cord. Such devices have applicability in, for example, the care of military members sustaining combatant and noncombatant spinal injuries, as well as to civilians. The devices also have utility in the acute and subacute management of spine trauma, enhancing the efficacy of interventions aimed at the prevention of secondary ischemic injury, and ultimately improving neurologic outcome.
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Citations
34 Claims
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1. A device, comprising:
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a first illuminator fiber having a longitudinal axis and having a distal end; a first detector fiber having a distal end; a tubular housing having a distal end, the tubular housing at least partially enclosing the first illumination fiber and the first detector fiber, wherein the distal end of the first detector fiber is at a different location, as measured along the longitudinal axis of the first illuminator fiber, than the location of the distal end of the first illuminator fiber the first illuminator fiber being in optical communication with an illumination source configured to supply illumination from the first illuminator fiber at from about 600 nm to about 970 nm, the first detector fiber being in optical communication with a first illumination detector, and the device being adapted for insertion into the spinal epidural space, the spinal intrathecal space, or both of a subject. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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Specification