Analyte sensor method of making the same
First Claim
1. An analyte sensor for implantation in a body for use with a slotted needle, the sensor comprising:
- a substrate with notches cut in the substrate to form a necked down region in the substrate and a non-necked down region in the substrate wherein the non-necked down region is distal to the notch which forms the necked down region and is for placement within the body; and
at least one sensor electrode formed from one or more conductive layers,wherein the notches creating the necked down region allow the substrate to slide into the slotted needle that has a slot narrow enough to permit passage of the necked down region, but prevents the non-necked down region of the substrate from slipping out of the slotted needle, andwherein the notches cut in the substrate do not expose any sensor electrode to analytes.
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Accused Products
Abstract
A sensor and method of making the same for implantation in a body that includes a substrate with notches cut in the substrate to form a necked down region in the substrate; and at least one sensor electrode formed from one or more conductive layers. Preferably, the thickness of the substrate ranges from approximately 25μ to 350μ, but the thickness of the substrate can range from 5μ to 750μ. The sensor may be incorporated in to a sensor assembly includes a slotted needle having a slot. The notches creating the necked down region allow the substrate to slide into the slotted needle, which that has the slot narrow enough to permit passage of the necked down region. However, a non-necked down region of the substrate is prevented from pulling out of the slotted needle through the slot. The slot of the slotted needle may also permit the necked down region of the substrate to slide down the slot.
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Citations
14 Claims
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1. An analyte sensor for implantation in a body for use with a slotted needle, the sensor comprising:
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a substrate with notches cut in the substrate to form a necked down region in the substrate and a non-necked down region in the substrate wherein the non-necked down region is distal to the notch which forms the necked down region and is for placement within the body; and at least one sensor electrode formed from one or more conductive layers, wherein the notches creating the necked down region allow the substrate to slide into the slotted needle that has a slot narrow enough to permit passage of the necked down region, but prevents the non-necked down region of the substrate from slipping out of the slotted needle, and wherein the notches cut in the substrate do not expose any sensor electrode to analytes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An analyte sensor system for implantation in a body, the sensor system comprising:
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a slotted needle; a substrate with notches cut in the substrate to form a necked down region in the substrate and a non-necked down region in the substrate wherein to non-necked down region is distal to the notch which forms the necked down region and is for placement within the body; and at least one sensor electrode formed from one or more conductive layers, wherein the notches creating the necked down region allow the substrate to slide into the slotted needle that has a slot narrow enough to permit passage of the necked down region, but prevents the non-necked down region of the substrate from slipping out of the slotted needle, and wherein the notches cut in the substrate do not expose any sensor electrode to analytes.
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Specification