Apparatus for improved pulse oximetry measurement
First Claim
Patent Images
1. A sensor utilized in monitoring patient oxygenation, the sensor comprising:
- a housing including an interior surface substantially surrounding an interior and including a first material having a low reflectance and/or transmissive characteristic to light;
a light source operatively affixed to the housing and proximate the interior surface so as to project light within the interior of the housing;
a light detector operatively affixed to the housing and proximate the interior surface; and
, a second material proximate the light source or the light detector, wherein the second material being relatively more reflective, transmissive—
or a combination thereof—
to light than the first material.
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Abstract
An apparatus for measuring the blood oxygen level of a patient is disclosed. In one embodiment, the apparatus includes a housing having an interior surface of non-reflective material substantially surrounding an interior. A cooperating light source and detector are operatively positioned proximate the interior surface so as to emit and receive light projected within the interior of the housing. A material more conducive to light transmission, reflectance, or a combination thereof—as compared to the interior surface material—is positioned proximate the light source and/or detector.
74 Citations
37 Claims
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1. A sensor utilized in monitoring patient oxygenation, the sensor comprising:
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a housing including an interior surface substantially surrounding an interior and including a first material having a low reflectance and/or transmissive characteristic to light;
a light source operatively affixed to the housing and proximate the interior surface so as to project light within the interior of the housing;
a light detector operatively affixed to the housing and proximate the interior surface; and
,a second material proximate the light source or the light detector, wherein the second material being relatively more reflective, transmissive—
or a combination thereof—
to light than the first material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A sensor for monitoring oxygenation and adaptable for attaching to a patient, the sensor comprising:
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a housing substantially surrounding an interior, the housing including an interior wall comprising a first material and having an outlet, the interior wall is capable of being placed proximate the patient;
an inset housing including a second material, the inset housing inlaid within the outlet;
a light source substantially surrounded by the inset housing wherein an exposed portion of the light source is positioned proximate the interior wall so as to project light produced by the light source toward the interior of the housing; and
,a light detector operatively attached to the housing and proximate the interior. - View Dependent Claims (17, 18, 19)
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20. A sensor utilized in monitoring patient oxygenation, the sensor comprising:
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a housing including a first material being substantially non-reflective and/or non-transmissive to light, the housing including an interior and an interior surface, the interior surface including an opening;
an inset housing including a second material being substantially reflective, transmissive—
or a combination thereof—
to light, the inset housing inlaid within the opening of the interior surface; and
,a light source substantially surrounded by the inset housing wherein an exposed portion of the light source is proximate the interior surface so as to project light toward the interior of the housing. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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Specification