System and method for a drug delivery and biosensor patch
First Claim
1. An integrated drug delivery and biosensor (IDDB) system, comprising:
- a patch configured for attaching to a patient;
a drug delivery system coupled to the patch, wherein the drug delivery system is configured to administer a dosage of medication at an administration rate at an upper epidermal layer of skin to the patient;
a biosensor system coupled to the patch, wherein the biosensor system is configured to;
monitor biosensor data of the patient, wherein the biosensor data includes one or more of;
respiratory rate, heart rate or blood pressure;
continuously monitor an absorption rate of the medication into the upper epidermal layer of skin and surrounding tissue and in arterial blood flow of the patient; and
continuously monitor a concentration of a substance in the arterial blood flow, wherein the concentration of the substance corresponds to a concentration of the medication;
wherein the drug delivery system is configured to alter the dosage of the medication and the administration rate of the medication in response to;
the biosensor data;
the absorption rate of the medication into the upper epidermal layer of skin and surrounding tissue and in the arterial blood flow; and
the concentration of the substance in the arterial blood flow.
6 Assignments
0 Petitions
Accused Products
Abstract
An integrated drug delivery and biosensor (IDDB) system is implemented on a patch or arm band. The drug delivery system includes needles adapted to pierce the skin and direct injection of a predetermined dosage of medication through the needles into the epidermis of the skin of a patient. The integrated biosensor monitors absorption of the medication into the epidermis of the skin of the patient and may also monitor concentration of the medication or other relevant substances in arterial blood flow of the patient. The integrated biosensor may also monitor a patient'"'"'s vitals in response to the medication. The integrated biosensor may then alter dosage or frequency of administration of dosages or even halt a dosage of medication in response to the patient'"'"'s vitals or absorption of the medication.
47 Citations
23 Claims
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1. An integrated drug delivery and biosensor (IDDB) system, comprising:
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a patch configured for attaching to a patient; a drug delivery system coupled to the patch, wherein the drug delivery system is configured to administer a dosage of medication at an administration rate at an upper epidermal layer of skin to the patient; a biosensor system coupled to the patch, wherein the biosensor system is configured to; monitor biosensor data of the patient, wherein the biosensor data includes one or more of;
respiratory rate, heart rate or blood pressure;continuously monitor an absorption rate of the medication into the upper epidermal layer of skin and surrounding tissue and in arterial blood flow of the patient; and continuously monitor a concentration of a substance in the arterial blood flow, wherein the concentration of the substance corresponds to a concentration of the medication; wherein the drug delivery system is configured to alter the dosage of the medication and the administration rate of the medication in response to;
the biosensor data;
the absorption rate of the medication into the upper epidermal layer of skin and surrounding tissue and in the arterial blood flow; and
the concentration of the substance in the arterial blood flow. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An method operable by an integrated drug delivery and biosensor (IDDB), comprising:
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administering a dosage of medication at an administration rate from a drug delivery system integrated onto the patch for attaching to a patient; monitoring biosensor data of the patient using a biosensor integrated onto the patch, wherein the biosensor data includes one or more of;
respiratory rate, heart rate or blood pressure;monitoring absorption rate using the integrated biosensor of the medication into surrounding tissue and arterial blood flow; monitoring concentration by the integrated biosensor of a substance in arterial blood flow, wherein the concentration of the substance corresponds to a concentration of the medication; and altering the dosage of the medication and the administration of the medication by the drug delivery system in response to the biosensor data, the absorption rate of the medication into the surrounding tissue and into the arterial blood flow, and the concentration of the substance in the arterial blood flow. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. An integrated drug delivery and biosensor (IDDB) system, comprising:
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a patch configured for attaching to a patient; a drug delivery system coupled to the patch, wherein the drug delivery system is configured to administer a dosage of insulin at an administration rate to the patient; a biosensor system coupled to the patch configured to continuously monitor a blood glucose concentration level in the arterial blood flow of the patient, wherein the biosensor system includes; a PPG circuit configured to; emit light having at least a first wavelength responsive to nitric oxide (NO) levels directed at an outer epidermal layer of skin tissue of a patient; emit light having at least a second wavelength with a low absorption coefficient for nitric oxide (NO) directed at the outer epidermal layer of skin tissue of the patient; generate a first spectral response for light around the first wavelength responsive to NO levels reflected from the outer epidermal layer of the skin tissue of the patient; generate a second spectral response for light around the second wavelength with a low absorption coefficient for NO reflected from the outer epidermal layer of the skin tissue of the patient; a processing circuit configured to obtain an indicator of a concentration level of NO of the patient by; isolating a systolic point and a diastolic point in the first spectral response and obtain a value Lλ
1 using a ratio of the systolic point and the diastolic point in the first spectral response;isolating a systolic point and a diastolic point in the second spectral response and obtain a value Lλ
2 using a ratio of the systolic point and diastolic point in the second spectral response;obtaining a value R λ
1, λ
2 from a ratio of the value Lλ
1 and the value Lλ
2, wherein the value Rλ
1, λ
2 is the indicator of the concentration level of NO of the patient;obtaining a blood glucose concentration level in the arterial blood flow of the patient from a calibration table using the value R λ
1, λ
2, wherein the calibration table includes a range of Rλ
1, λ
2 values and correlated blood glucose concentration levels; andwherein the IDDB system is configured to alter the dosage of the insulin and the administration rate of the insulin in response to the blood glucose concentration level in the arterial blood flow. - View Dependent Claims (20, 21, 22, 23)
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Specification