Method and apparatus for non-invasive blood glucose sensing
First Claim
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1. Apparatus for monitoring blood glucose levels in a patient, said apparatus of the non-invasive, near infrared type including a monitor housing having means for generating and measuring near infrared radiation, wherein the improvement comprises:
- a) a sensor head operably coupled to the near infrared radiation generating and measuring means for directing and receiving said radiation to and from a patient'"'"'s skin;
b) an arm tray slidably mounted on said monitor housing adjacent to said sensor head for supporting a forearm of the patient thereon and to position the forearm relative to the sensor head; and
c) motive means for incrementally moving and stopping the arm tray relative to the sensor head over a selected distance to permit a plurality of blood glucose measurements to be made along a given area of forearm skin of the patient.
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Abstract
A method and apparatus (12) for the non-invasive sensing of blood glucose levels includes apparatus (10) which moves the forearm of the patient in a controlled incremental manner to take a plurality of spectral skin measurements and averaging the measurements for the purpose of accounting for biological differences that exist in the patient'"'"'s skin.
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Citations
8 Claims
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1. Apparatus for monitoring blood glucose levels in a patient, said apparatus of the non-invasive, near infrared type including a monitor housing having means for generating and measuring near infrared radiation, wherein the improvement comprises:
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a) a sensor head operably coupled to the near infrared radiation generating and measuring means for directing and receiving said radiation to and from a patient'"'"'s skin; b) an arm tray slidably mounted on said monitor housing adjacent to said sensor head for supporting a forearm of the patient thereon and to position the forearm relative to the sensor head; and c) motive means for incrementally moving and stopping the arm tray relative to the sensor head over a selected distance to permit a plurality of blood glucose measurements to be made along a given area of forearm skin of the patient. - View Dependent Claims (2, 3, 4, 5)
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6. A method of monitoring a blood glucose level by use of near infrared radiation in a patient comprising the steps of:
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a) positioning a sensor head of a blood glucose monitor at a first skin site of the patient; b) performing at least one blood glucose measurement at said first skin site; c) repositioning the sensor head to a next skin site and, at the same time, lifting the skin of the patient away from the sensor head; d) performing at least one blood glucose measurement at said next skin site; e) repeating steps c) and d) a plurality of times to conduct blood glucose measurements over a given area of skin; f) averaging the blood glucose measurements made in steps b)-e); and g) releasing the skin to contact the sensor head during steps b) and d). - View Dependent Claims (7, 8)
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Specification