Durable sensor for detecting optical pulses
First Claim
1. A sensor for use in illuminating a patient'"'"'s tissue to measure blood constituents, comprising:
- a first housing;
a first deformable means for securely gripping and complying to the patient'"'"'s tissue, attached to the first housing and having an undeformed shape when not complying to the tissue;
a second housing;
a second deformable means for securely gripping and complying to the patient'"'"'s tissue, attached to the second housing and having an undeformed shape when not complying to the tissue;
a light source secured proximal to the surface of one of the first or second deformable means;
a light detector secured proximal to the surface of the other of the first or second deformable means;
means for arranging the first and second housings so that the first and second deformable means are in opposition about the patient'"'"'s tissue; and
means for connecting the first and second housings together about the patient'"'"'s tissue so that the first and second deformable means grip and conform to the shape of the tissue without substantially altering the blood flow and for disengaging the sensor from the tissue to permit the first and second deformable means to return to their undeformed shape.
3 Assignments
0 Petitions
Accused Products
Abstract
A sensor for use with instruments that non-invasively measure blood constituents, particularly oxygen saturation of arterial blood from the patient'"'"'s tissue. The sensor has two rigid housings adapted for arrangement in opposition and secured about a patient'"'"'s tissue. Each housing has a deformable pad adapted for receiving, conforming to, and securely gripping the patient'"'"'s tissue without significantly affecting arterial blood flow. In one embodiment, the housings are pivotally mounted and biased closed under tension, one pad contains a light source for illuminating the tissue in its tissue contacting surface, and the other pad contains the light detector for use in measuring the amount of light absorbed by the blood constituent. In a second embodiment one or the other pad contains both the light source and light detector. The detected light can then be correlated to the amount of blood constituent present in the blood.
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Citations
24 Claims
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1. A sensor for use in illuminating a patient'"'"'s tissue to measure blood constituents, comprising:
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a first housing; a first deformable means for securely gripping and complying to the patient'"'"'s tissue, attached to the first housing and having an undeformed shape when not complying to the tissue; a second housing; a second deformable means for securely gripping and complying to the patient'"'"'s tissue, attached to the second housing and having an undeformed shape when not complying to the tissue; a light source secured proximal to the surface of one of the first or second deformable means; a light detector secured proximal to the surface of the other of the first or second deformable means; means for arranging the first and second housings so that the first and second deformable means are in opposition about the patient'"'"'s tissue; and means for connecting the first and second housings together about the patient'"'"'s tissue so that the first and second deformable means grip and conform to the shape of the tissue without substantially altering the blood flow and for disengaging the sensor from the tissue to permit the first and second deformable means to return to their undeformed shape. - View Dependent Claims (2)
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3. A sensor for use in illuminating a patient'"'"'s tissue to measure blood contituents, comprising:
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two rigid housings pivotally connected, the housings having an open position and a closed position with respect to one another; means for biasing the housings in their closed position; a pair of deformable means for securely gripping and complying to the pateint'"'"'s tissue, each having an undeformed shape when not complying to the tissue, secured on opposing surfaces of the housings between the pivotal connection and the housing ends; a light source secured proximal to the surface of the deformable means on one said housing; a light detector secured proximal to the surface of the deformable means on the other said housing; and means for opening and closing the housings to permit the patient'"'"'s tissue to be inserted into the sensor and the deformable means to grip and conform to the shape of the tissue without substantially altering the blood flow and to permit the patient'"'"'s tissue to be removed from the sensor and the deformable means to return to their undeformed shape. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A sensor for use in illuminating a patient'"'"'s tissue to measure blood constituents comprising:
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a first housing; a first deformable means for securely gripping and complying to the patient'"'"'s tissue, attached to the first housing and having an undeformed shape when not complying to the tissue; a second housing; a second deformable means for securely gripping and complying to the patient'"'"'s tissue, attached to the second housing and having an undeformed shape when not complying to the tissue; a light source secured proximal to the surface of the one of the first or second deformable means on one said housing; a light detector secured proximal to the surface of the same deformable means on the same said housing; means for arranging the first and second housings so that the first and second deformable means are in opposition about the patient'"'"'s tissue; and means for connecting the first and second housings together about the patient'"'"'s tissue without substantially altering the blood flow so that the first and second deformable means grip and conform to the shape of the tissue and for disengaging the sensor from the tissue to permit the first and second deformable means to return to their undeformed shapes. - View Dependent Claims (14)
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15. A sensor for use in illuminating a patient'"'"'s tissue to measure blood constituents, comprising:
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two rigid housings pivotally connected, the housings having an open position and a closed position; means for biasing the housings in their closed position; a pair of deformable means for securely gripping and complying to the patient'"'"'s tissue, each having an undeformed shape when not complying to the tissie, secured on opposing surfaces of the housing between the pivotal connection and the housing ends; a light source secured proximal to the surface of the deformable means on one said housing; a light detector secured proximal to the surface of the deformable means on the same said housing; and means for opening and closing the housings to permit the patient'"'"'s tissue to be inserted into the sensor and the deformable means to conform to the shape of the tissue without substantially altering the blood flow and to permit the patient'"'"'s tissue to be removed from the sensor and the deformable means to return to their undeformed shape. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification