System And Method For Optode And Electrode Positioning Cap For Electroencephalography, Diffuse Optical Imaging, and Functional Neuroimaging
First Claim
Patent Images
1. A positioning cap comprising:
- at least one semirigid telescopic structure forming at least one loop, the semirigid telescopic structure capable of extension and compression while maintaining even spacing of devices selected from the group consisting of optodes and electrodes attached thereto; and
an elastomeric tensioning device configured to tighten the semirigid telescopic structure around an object.
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Abstract
An electroencephalographic electrode and optode positioning device has the form of a cap suitable for placement on a subject'"'"'s head. The cap has semirigid telescopic structures that stiffen it to provide accurate electrode and optode spacing, and stability during subject activity. The cap is intended for use in functional neuroimaging and, although its materials are compatible with fMRI, is usable without fMRI to permit study of physically as well as mentally active subjects.
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Citations
21 Claims
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1. A positioning cap comprising:
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at least one semirigid telescopic structure forming at least one loop, the semirigid telescopic structure capable of extension and compression while maintaining even spacing of devices selected from the group consisting of optodes and electrodes attached thereto; and an elastomeric tensioning device configured to tighten the semirigid telescopic structure around an object. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16)
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15. The positioning cap of claim 15 wherein the barrel of at least one optode is cemented to jackets of a plurality of optical fibers, the plurality of optical fibers coupled to the prism.
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17. A optical interface device for optical fibers comprising
a plurality of optodes having a barrel cemented to a jacket of an optical fiber, the optical fiber coupled to a prism, the prism coupled to a graded-index lens oriented at a right angle to the barrel, and the graded-index lens coupled to a hemispherical lens; -
an elastomeric web; wherein the optodes are inserted into holes of the web. - View Dependent Claims (18, 19)
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20. A method of stably and repeatably positioning a plurality of devices selected from the group consisting of electrodes and optodes on a subject'"'"'s head comprising:
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attaching semirigid telescopic structures to an elastomeric tensioning device; attaching a plurality of devices selected from the group consisting of electrodes and optodes to the elastomeric tensioning device; attaching a plurality of devices selected from the group consisting of electrodes and optodes to the semirigid telescopic structures; and placing the elastomeric tensioning device on a subject'"'"'s head. - View Dependent Claims (21)
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Specification