Sensors for continuous analyte monitoring, and related methods
First Claim
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1. A sensor device for measuring analyte concentration in a host, comprising:
- an in vivo portion configured for insertion under a host'"'"'s skin, wherein the in vivo portion comprises at least one sensor, a bioactive agent, a biodegradable material, a hardening agent, and a membrane, wherein the hardening agent is integrated into the membrane, wherein the membrane covers at least a portion of the at least one sensor, wherein the hardening agent increases a column strength of the sensor, wherein the biodegradable material encapsulates at least a portion of the sensor, wherein the biodegradable material is configured to biodegrade following insertion into the host, wherein the biodegradable material is formed of a material that provides the sensor with sufficient column strength to prevent sensor buckling during insertion of the in vivo portion, wherein the biodegradable material has a Rockwell Hardness of 25 D to 65 D, wherein the at least one sensor lacks a column strength necessary to be inserted alone through the host'"'"'s skin without buckling, wherein the bioactive agent is configured to suppress wounding; and
an ex vivo portion configured to remain above the host'"'"'s skin surface after insertion of the in vivo portion, wherein the ex vivo portion is configured to receive pressure from a user to cause insertion of the in vivo portion of the sensor device, wherein the ex vivo portion comprises an adhesive configured to adhere the ex vivo portion to the host'"'"'s skin.
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Abstract
Sensor devices including dissolvable tissue-piercing tips are provided. The sensor devices can be used in conjunction with dissolvable needles configured for inserting the sensor devices into a host. Hardening agents for strengthening membranes on sensor devices are also provided. Methods of using and fabricating sensor devices are also provided.
32 Citations
12 Claims
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1. A sensor device for measuring analyte concentration in a host, comprising:
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an in vivo portion configured for insertion under a host'"'"'s skin, wherein the in vivo portion comprises at least one sensor, a bioactive agent, a biodegradable material, a hardening agent, and a membrane, wherein the hardening agent is integrated into the membrane, wherein the membrane covers at least a portion of the at least one sensor, wherein the hardening agent increases a column strength of the sensor, wherein the biodegradable material encapsulates at least a portion of the sensor, wherein the biodegradable material is configured to biodegrade following insertion into the host, wherein the biodegradable material is formed of a material that provides the sensor with sufficient column strength to prevent sensor buckling during insertion of the in vivo portion, wherein the biodegradable material has a Rockwell Hardness of 25 D to 65 D, wherein the at least one sensor lacks a column strength necessary to be inserted alone through the host'"'"'s skin without buckling, wherein the bioactive agent is configured to suppress wounding; and an ex vivo portion configured to remain above the host'"'"'s skin surface after insertion of the in vivo portion, wherein the ex vivo portion is configured to receive pressure from a user to cause insertion of the in vivo portion of the sensor device, wherein the ex vivo portion comprises an adhesive configured to adhere the ex vivo portion to the host'"'"'s skin. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification