Transcutaneous analyte sensor
First Claim
1. A sensor device for measuring an analyte concentration, the sensor device comprising:
- a sensor unit configured for direct press insertion, wherein the sensor unit comprises an in vivo portion comprising a sensor body and a tissue piercing element configured to pierce a skin of a host to open and define a passage for insertion of the sensor body, wherein the sensor body and the tissue piercing element form a unitary piece, wherein the sensor body comprises at least one electrode, wherein the sensor body further comprises a membrane covering at least a portion of the at least one electrode;
an on-skin unit configured to support the sensor on an exterior surface of a host'"'"'s skin, wherein the on-skin unit is configured to receive a pressure from a user for insertion of the sensor unit through the skin; and
a skin tensioner configured to stretch the skin surface to create tension thereto sufficient to permit needle-less sensor insertion.
1 Assignment
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Accused Products
Abstract
A transcutaneous sensor device configured for continuously measuring analyte concentrations in a host is provided. In some embodiments, the transcutaneous sensor device 100 comprises an in vivo portion 160 configured for insertion under the skin 180 of the host and an ex vivo portion 170 configured to remain above the surface of the skin 180 of the host after sensor insertion of the in vivo portion. The in vivo portion may comprise a tissue piercing element 110 configured for piercing the skin 180 of the host and a sensor body 120 comprising a material or support member 130 that provides sufficient column strength to allow the sensor body to be pushable in a host tissue without substantial buckling. The ex vivo portion 170 may be configured to comprise (or operably connect to) a sensor electronics unit and may comprise a mounting unit 150. Also described here are various configurations of the sensor body and the tissue piercing element that may be used to protect the membrane of the sensor body.
209 Citations
18 Claims
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1. A sensor device for measuring an analyte concentration, the sensor device comprising:
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a sensor unit configured for direct press insertion, wherein the sensor unit comprises an in vivo portion comprising a sensor body and a tissue piercing element configured to pierce a skin of a host to open and define a passage for insertion of the sensor body, wherein the sensor body and the tissue piercing element form a unitary piece, wherein the sensor body comprises at least one electrode, wherein the sensor body further comprises a membrane covering at least a portion of the at least one electrode; an on-skin unit configured to support the sensor on an exterior surface of a host'"'"'s skin, wherein the on-skin unit is configured to receive a pressure from a user for insertion of the sensor unit through the skin; and a skin tensioner configured to stretch the skin surface to create tension thereto sufficient to permit needle-less sensor insertion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification