Transcutaneous analyte sensor
First Claim
Patent Images
1. An analyte measuring system, the system comprising:
- a mounting unit comprising a first side adapted for mounting on the skin of a host and a second side, opposing the first side, wherein the second side comprises an opening, and wherein the mounting unit comprises electrical contacts;
an electronics unit detachably connectable to the opening in the second side of the mounting unit, wherein the electronics unit comprises electrical contacts;
a sensor for measuring a level of the analyte comprising an in vivo portion configured for insertion through the skin at an exit site of the host and an ex vivo portion comprising electrode terminals configured for operable connection to the electrical contacts of the electronics unit via the electrical contacts of the mounting unit, whereby the sensor is operably connected to the electronics unit when the electronics unit is detachably connected to the mounting unit;
a communication station for receiving and processing analyte measurements received from the electronics unit; and
an elastomeric sealing member that fits in the opening on the second side of the mounting unit and configured to protect the electrical contacts of the mounting unit from moisture.
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Abstract
The present invention relates generally to systems and methods for measuring an analyte in a host. More particularly, the present invention relates to systems and methods for transcutaneous measurement of glucose in a host.
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Citations
20 Claims
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1. An analyte measuring system, the system comprising:
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a mounting unit comprising a first side adapted for mounting on the skin of a host and a second side, opposing the first side, wherein the second side comprises an opening, and wherein the mounting unit comprises electrical contacts; an electronics unit detachably connectable to the opening in the second side of the mounting unit, wherein the electronics unit comprises electrical contacts; a sensor for measuring a level of the analyte comprising an in vivo portion configured for insertion through the skin at an exit site of the host and an ex vivo portion comprising electrode terminals configured for operable connection to the electrical contacts of the electronics unit via the electrical contacts of the mounting unit, whereby the sensor is operably connected to the electronics unit when the electronics unit is detachably connected to the mounting unit; a communication station for receiving and processing analyte measurements received from the electronics unit; and an elastomeric sealing member that fits in the opening on the second side of the mounting unit and configured to protect the electrical contacts of the mounting unit from moisture. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An analyte measuring system, the system comprising:
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a mounting unit comprising a first side adapted for mounting on the skin of a host and a second side, opposing the first side, wherein the second side comprises an opening, and wherein the mounting unit comprises electrical contacts; an electronics unit detachably connectable to the opening in the second side of the mounting unit, wherein the electronics unit comprises electrical contacts; a sensor for measuring a level of the analyte comprising an in vivo portion configured for insertion, using a needle, through the skin at an exit site of the host and an ex vivo portion comprising electrode terminals configured for operable connection to the electrical contacts of the electronics unit via the electrical contacts of the mounting unit, whereby the sensor is operably connected to the electronics unit when the electronics unit is detachably connected to the mounting unit; and a communication station for receiving and processing analyte measurements received from the electronics unit, wherein the electrical contacts of the mounting unit comprise a conductive elastomer and a guide tube that extends through the conductive elastomer to maintain an opening in the electrical contacts of the mounting unit prior to sensor insertion and enable easy insertion of the needle through the electrical contacts of the mounting unit during insertion of the needle.
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12. An analyte measuring system, the system comprising:
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a mounting unit adapted for mounting on the skin of a host; an electronics unit body detachably connectable to the mounting unit; a sensor for measuring a level of the analyte comprising an in vivo portion for insertion through the skin at an exit site of the host and an ex vivo portion connected to the mounting unit, wherein the sensor is operably connected to the electronics unit body when the electronics unit body is detachably connected to the mounting unit; and a communication station for receiving and processing analyte measurements received from the electronics unit body, wherein the mounting unit comprises an opening configured to releasably receive the electronics unit body therein, and wherein the mounting unit is configured such that at least a portion of the electronics unit body is located over the exit site of the host when the electronics unit body is detachably connected to the mounting unit, and wherein the sensor is configured to bend from a substantially straight position during sensor insertion to a substantially bent configuration after sensor insertion, wherein the substantially bent configuration is configured to cause flexion in the sensor that absorbs movements on the sensor during use of the sensor. - View Dependent Claims (13, 14, 15, 16)
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17. An analyte measuring system, the system comprising:
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a mounting unit comprising a first side adapted for mounting on the skin of a host and a second side, opposing the first side, wherein the second side comprises an opening, and wherein the mounting unit comprises electrical contacts; an electronics unit detachably connectable to the opening in the second side of the mounting unit, wherein the electronics unit comprises electrical contacts; a sensor for measuring a level of the analyte comprising an in vivo portion configured for insertion through the skin at an exit site of the host and an ex vivo portion comprising electrode terminals configured for operable connection to the electrical contacts of the electronics unit via the electrical contacts of the mounting unit, whereby the sensor is operably connected to the electronics unit when the electronics unit is detachably connected to the mounting unit;
wherein the system comprises a sealing member comprising a molded elastomeric subassembly located between the electrical contacts of the mounting unit and the electrical contacts of the electronics unit, and wherein the system further comprises a sealant comprising a water impermeable material or compound that has a viscosity that allows penetration into void spaces within the mounting unit. - View Dependent Claims (18, 19, 20)
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Specification