Application No.:
`Filing Date:
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`16/835772
`March 31, 2020
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`AMENDMENTSTO THE SPECIFICATION
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`Please amendthe originally filed specification as set forth below.
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`Please amend Paragraph [0020] as follows:
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`[0020]
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`FIG.
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`1
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`illustrates a conventional approach to [[2D]]two-dimensional pulse
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`oximetry in which the emitter is configured to emit optical radiation as a point optical source.
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`Please amend Paragraph [0021] as follows:
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`[0021]
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`FIG. 2 illustrates the disclosed [[3D]]three-dimensional approach to pulse
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`oximetry in which the emitted light irradiates a substantially larger volume of tissue as compared
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`to the point source approach described with respect to HG-2AHIG. 1.
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`Please amend Paragraph [0022] as follows:
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`[0022]
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`FIG. 3 illustrates schematically a side view of a [[3D]]three-dimensional pulse
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`oximetry sensor according to an embodimentofthe present disclosure.
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`Please amend Paragraph [0023] as follows:
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`[0023]
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`FIG. 4A is a top view of a portion of a [[3D]]three-dimensional pulse
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`oximetry sensor according to an embodimentofthe present disclosure.
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`Please amend Paragraph [0024] as follows:
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`[0024]
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`FIG. 4B illustrates the top view of a portion of the [[3D]]three-dimensional
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`pulse oximetry sensor shown in FIG. 4A, with the addition of a tissue measurement site in
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`operational position.
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`Please amend Paragraph [0025] as follows:
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`[0025]
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`FIG. 5 illustrates a top view of a [[3D]]three-dimensional pulse oximetry
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`sensor according to an embodimentofthe present disclosure.
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`Please amend Paragraph [0026] as follows:
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`[0026]
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`FIG. 6 illustrates a conventional [[2D]]two-dimensional approachto reflective
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`pulse oximetry in which the emitter is configured to emit optical radiation as a point optical
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`source.
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`-2-
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`Application No.:
`Filing Date:
`
`16/835772
`March 31, 2020
`
`Please amend Paragraph [0027] as follows:
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`[0027]
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`FIG. 7A is a simplified schematic side view illustration of a reflective
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`[[3D]]three-dimensional pulse oximetry sensor according to an embodiment of the present
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`disclosure.
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`Please amend Paragraph [0028] as follows:
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`[0028]
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`FIG. 7B is a simplified schematic top view illustration of the [[3D]]three-
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`dimensional reflective pulse oximetry sensor of FIG. 7A.
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`Please amend Paragraph [0048] as follows:
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`[0048]
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`The light diffuser 704 receives the optical radiation emitted from the emitter
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`[[302 ]]702and homogenously spreads the optical radiation over a wide, donut-shaped area, such
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`as the area outlined by the light diffuser 704 as depicted in FIG. 7B. Advantageously, the diffuser
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`704 can receive emitted light in the form of a 2D point optical source (or any other form) and
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`spread the light to fit the desired surface area on a plane defined by the surface of the tissue
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`measurement site 102. In an embodiment, the diffuser 704 is made of ground glass or glass
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`beads. A skilled artisan will understand that may other materials can be used to makethe light
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`diffuser 704.
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`Please amend Paragraph [0049] as follows:
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`[0049]
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`The light blocker 706 includes an annular ring having a cover portion 707
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`sized and shaped to formalight isolation chamberfor the light concentrator 708 and the detector
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`710. (For purposesof illustration, the light block cover 707 is not illustrated in FIG. 7B.) The
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`light blocker 706 and the cover 707 can be made of any material that optically isolates the light
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`concentrator 708 and the detector 710. The light isolation chamber formed bythe light blocker
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`706 and cover[[708 ]]707ensures that the only light detected by the detector 710 is light that is
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`reflected from the tissue measurementsite.
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`Please amend Paragraph [0053] as follows:
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`[0053]
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`Referring now to FIG. 7B, a top view of the 3D sensor 700 is illustrated with
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`both the emitter 702 and the light blocker cover 707 removedfor ease of illustration. The outer
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`ring illustrates the footprint of the light diffuser 704. As light is emitted from the emitter 702 (not
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`-3-
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`

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`Application No.:
`Filing Date:
`
`16/835772
`March 31, 2020
`
`shown in FIG. 7B), it is diffused homogenously and directed to the tissue measurementsite 102.
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`The light blocker 706 forms the circular wall of a light isolation chamber to keep incident light
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`from being sensed by the detector 710. The light blocker cover 707 blocks incidental light from
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`entering the light isolation chamber from above. The light concentrator #49708 collects the
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`reflected light from the tissue measurement site 102 and funnels it upward toward the detector
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`710 at the center of the 3D sensor 700.
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`-4-
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