Non-invasive sensor
First Claim
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1. A sensor for placement against the tissue of a living subject for the purpose of measuring a physiological quantity, said sensor comprising:
- a rigid housing having a rigid peripheral upstanding wall which forms a recess chamber, said upstanding peripheral wall terminating in an upper rim designed for providing a force against the tissue of a patient and limiting the amount of movement of said housing;
light source means for exposing said tissue to a source of light having at least one predetermined wavelength;
light sensing means for sensing light reflected from said tissue which has been exposed to said light source means;
flexible support means secured to said housing and placed against said upper rim for independently supporting said light source means and light sensing means within said recess chamber and for placement against the tissue of a patient, said light source means and light sensing means being mounted in said flexible support means such that said light sensing means and light source means move independently from each other and conform to the tissue of the patient.
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Abstract
A sensor for placement against the tissue of a living subject for the purpose of measuring a physiological quantity. The sensor includes a rigid housing having a recess chamber formed therein. A light source and sensor is mounted in a flexible mounting pad secured to the housing. The flexible mounting pad allows the light source and sensor to move independently of each other and conforms to the adjacent tissue.
213 Citations
15 Claims
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1. A sensor for placement against the tissue of a living subject for the purpose of measuring a physiological quantity, said sensor comprising:
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a rigid housing having a rigid peripheral upstanding wall which forms a recess chamber, said upstanding peripheral wall terminating in an upper rim designed for providing a force against the tissue of a patient and limiting the amount of movement of said housing; light source means for exposing said tissue to a source of light having at least one predetermined wavelength; light sensing means for sensing light reflected from said tissue which has been exposed to said light source means; flexible support means secured to said housing and placed against said upper rim for independently supporting said light source means and light sensing means within said recess chamber and for placement against the tissue of a patient, said light source means and light sensing means being mounted in said flexible support means such that said light sensing means and light source means move independently from each other and conform to the tissue of the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification