Device and method for determining analyte levels
First Claim
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1. A wholly implantable glucose monitoring device, the device comprising:
- a) a housing and a sensor, wherein the sensor is situated on the housing, wherein the sensor comprises a member for determining an amount of glucose in a biological fluid of a tissue of a host, and wherein the tissue of the host is adapted to be adjacent to a first side of the housing;
b) an angiogenic layer situated on said sensor, wherein the angiogenic layer promotes adequate microcirculatory delivery of analyte and oxygen to the sensor; and
c) a securing member for securing the device to the tissue of the host, wherein the securing member is situated on the first side of the housing wherein one of the angiogenic layer and securing member is more proximal to the housing than other of the angiogenic layer and the securing member.
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Abstract
Devices and methods for determining analyte levels are described. The devices and methods allow for the implantation of analyte-monitoring devices, such as glucose monitoring devices, that result in the delivery of a dependable flow of blood to deliver sample to the implanted device. The devices comprise a unique microarchitectural arrangement in the sensor region that allows accurate data to be obtained over long periods of time.
1120 Citations
73 Claims
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1. A wholly implantable glucose monitoring device, the device comprising:
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a) a housing and a sensor, wherein the sensor is situated on the housing, wherein the sensor comprises a member for determining an amount of glucose in a biological fluid of a tissue of a host, and wherein the tissue of the host is adapted to be adjacent to a first side of the housing;
b) an angiogenic layer situated on said sensor, wherein the angiogenic layer promotes adequate microcirculatory delivery of analyte and oxygen to the sensor; and
c) a securing member for securing the device to the tissue of the host, wherein the securing member is situated on the first side of the housing wherein one of the angiogenic layer and securing member is more proximal to the housing than other of the angiogenic layer and the securing member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A device for measuring glucose in a tissue of a host, the device comprising:
a wholly implantable device comprising a analyte sensor having an interface for communicating with a tissue of the host, the interface comprising an angiogenic layer for promoting adequate microcirculatory delivery of glucose and oxygen to the sensor, and an outermost stability layer for promoting formation of a stable foreign body capsule structure wherein one of the angiogenic layer and the stability layer. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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41. An analyte-measuring device suitable for implantation in a host, the device comprising:
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a housing, wherein the housing comprises a securing member for preventing movement of the device after implantation;
a sensor for determining an amount of an analyte in the host; and
an angiogenic layer, wherein the angiogenic layer promotes development of blood vessels microcirculation wherein one of the angiogenic layer and securing member is more proximal to the housing the other of the angiogenic layer and the securing member. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59)
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60. An analyte-measuring device suitable for implantation in a host, the device comprising:
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a housing, wherein the housing comprises a securing member for preventing movement of the device after implantation;
a sensor for determining an amount of an analyte in the host; and
a stability layer, wherein the stability layer promotes formation of a stable foreign body capsule structure wherein one of the stability layer and securing member is more proximal to the housing than other of the stability layer and the securing member. - View Dependent Claims (61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73)
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Specification