Shallow Implantable Analyte Sensor with Rapid Physiological Response
First Claim
Patent Images
1. A method, comprising:
- transcutaneously positioning an analyte sensor through a skin layer of a user, said analyte sensor including dermal a portion configured to be positioned substantially within a dermal layer under the skin layer; and
detecting a signal generated from the implanted portion of the analyte sensor, wherein the signal is associated with an analyte level of the user.
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Abstract
Methods and devices to detect analyte in body fluid are provided. Embodiments include analyte sensors designed so that at least a portion of the sensor is positionable beneath a skin surface in the dermal layer.
264 Citations
48 Claims
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1. A method, comprising:
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transcutaneously positioning an analyte sensor through a skin layer of a user, said analyte sensor including dermal a portion configured to be positioned substantially within a dermal layer under the skin layer; and detecting a signal generated from the implanted portion of the analyte sensor, wherein the signal is associated with an analyte level of the user. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An analyte sensor insertion device, comprising:
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an introducer having a sharp end; and an analyte sensor having a predetermined length and coupled to the introducer for transcutaneous positioning of a portion of the analyte sensor under a skin layer of a user at a predetermined depth not exceeding approximately 3 millimeters; wherein the portion of the analyte sensor under the skin layer includes one or more electrodes in fluid contact with dermal fluid for detecting a signal from the dermal fluid associated with an analyte level of the user. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method, comprising:
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positioning a portion of a transcutaneous analyte sensor under a skin layer of a user to retain one or more electrodes of the analyte sensor intradermally under the skin layer; and receiving one or more analyte associated signals from the one or more electrodes of the analyte sensor. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A kit, comprising:
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an insertion device including; a housing; an insertion mechanism coupled to the housing; and an introducer coupled to the insertion mechanism; and an analyte sensor coupled to the introducer, the analyte sensor including an implantable portion with one or more electrodes for intradermal positioning under a skin layer of a user; wherein upon actuation of the insertion mechanism, the introducer is configured pierce the skin layer of the user to transcutaneously position the implantable portion of the analyte sensor such that at least one of the one or more electrodes is in fluid contact with the dermal fluid of the user; and further wherein the introducer is removed from the user after positioning the implantable portion of the analyte sensor. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40)
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41. A method, comprising:
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transcutaneously positioning an analyte sensor through a skin layer of a user, said analyte sensor including at least a working electrode, wherein said working electrode of the analyte sensor is positioned within a dermal layer under the skin layer; and detecting a signal generated from the working electrode of the analyte sensor, wherein the signal is associated with an analyte level of the user, wherein the generated signal from the working electrode of the analyte sensor is detected within a shorter time period from the sensor positioning, than a time period to detect a generated signal from a working electrode of a subcutaneous sensor having the working electrode positioned in the subcutaneous fluid measured from the same sensor positioning. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48)
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Specification