Automatic blood monitoring for medication delivery method and apparatus
First Claim
1. An implantable blood monitoring and medication administering system, comprising,an infusion device implantable beneath the skin of a human or animal and containing medication,a single channel catheter implantable in a vessel and connected to the infusion device,an information transmitting sensor located within the single channel catheter and communicating with the infusion device for transmitting information about blood chemistry to the infusion device, andwherein said infusion device comprises means for causing medication to flow through the catheter, into engagement with the sensor, and thence into the vessel automatically in response to the information transmitted from the sensor.
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Abstract
An implantable blood monitoring and medication administering system includes an infusion device (2) which is implantable beneath the skin of a human or animal and which contains medication. A catheter (4) which is implantable in a vessel V is connected to the infusion device. An information transmitting sensor (22) is located in the catheter (4) and is connected to a microprocessor (8) within the system which controls a pump (10) for first withdrawing blood from the vessel V and submitting it to the sensor (22) and then returning the withdrawn blood to the vessel V along with a predetermined amount of medication, the pump may act to pump medication as well as blood or to pump blood alone. In the latter instance, a second pump (44) acts to pump the medication.
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Citations
20 Claims
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1. An implantable blood monitoring and medication administering system, comprising,
an infusion device implantable beneath the skin of a human or animal and containing medication, a single channel catheter implantable in a vessel and connected to the infusion device, an information transmitting sensor located within the single channel catheter and communicating with the infusion device for transmitting information about blood chemistry to the infusion device, and wherein said infusion device comprises means for causing medication to flow through the catheter, into engagement with the sensor, and thence into the vessel automatically in response to the information transmitted from the sensor.
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4. An implantable blood monitoring and medication administering system, comprising,
an infusion device implantable beneath the skin of a human or animal and containing medication, a single channel catheter implantable in a vessel and connected to the infusion device, medication calculating means in the infusion device; -
an information transmitting sensor located within the single channel catheter and communicating with the infusion device for transmitting information about blood chemistry to the medication calculating means, and wherein said infusion device comprises means for drawing blood into the catheter from the vessel to engage the sensor in the catheter and, subsequently reversing the blood flow for returning the blood along the same path through the catheter to the vessel with a calculated amount of medication from the infusion device. - View Dependent Claims (5, 6, 7, 8, 9, 10)
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11. An implantable blood monitoring and medication administering system, comprising,
an infusion device implantable beneath the skin of a human or animal and containing medication, a single channel catheter implantable in a vessel and connected to the infusion device, an information transmitting sensor located within the single channel catheter and communicating with the infusion device for transmitting information about blood chemistry to the infusion device, and wherein said infusion device comprises a microprocessor and a pump for drawing blood from the vessel onto the catheter to engage the sensor and for returning the blood along the same path through the catheter to the vessel with a calculated amount of medication from the infusion device.
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15. A method of automatically monitoring blood chemistry and administering an amount of medication determined to be required by the chemistry monitoring, all from within the body of a human or animal, comprising the steps of:
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a) withdrawing blood from a vessel in the body; b) submitting the withdrawn blood to analysis within the body; c) determining the amount of medication required as a result of the analysis; d) adding the required amount of medication to the withdrawn blood; and e) returning the analyzed blood to the vessel along with the determined amount of medication. - View Dependent Claims (16, 17)
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18. A method of automatically monitoring blood chemistry and administering an amount of medication determined to be required by the chemistry monitoring, all from within the body of a human or animal, comprising the steps of:
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a) sending a signal from a first location within the body to withdraw blood from a vessel, b) transmitting the withdrawn blood to a second location within the body for chemical analysis, c) chemically analyzing the withdrawn blood, d) transmitting information about the analyzed blood from the second location to the first location, e) calculating at the first location within the body the amount of medication required as a result of the analysis, f) adding the required amount of medication to the withdrawn blood, and g) creating a signal at the first location to initiated returning the withdrawn blood and the required medication to the vessel. - View Dependent Claims (19)
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20. A method of automatically monitoring blood chemistry and administering an amount of medication determined to be required by the chemistry monitoring, all from within the body of a human or animal, comprising the steps of:
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a) sending a signal from a first location within the body to withdraw blood from a vessel, b) transferring the blood from the vessel to a second location within the body for chemical analysis of the blood, c) chemically analyzing the withdrawn blood at the second location, d) sending information about the analysis to the first location within the body and at that location calculating the amount of medication required as a result of the analysis, and e) creating a signal at the first location to dispense the required medication from the first location to the second location and then into the vessel along with the analyzed blood.
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Specification