Analyte sensor devices, connections, and methods
Devices associated with on-body analyte sensor units are disclosed. These devices include any of packaging and/or loading systems, applicators and elements of the on-body sensor units themselves. Also, various approaches to connecting electrochemical analyte sensors to and/or within associated on-body analyte sensor units are disclosed. The connector approaches variously involve the use of unique sensor and ancillary element arrangements to facilitate assembly of separate electronics assemblies and sensor elements that are kept apart until the end user brings them together.
1. A sensor assembly comprising:
a sensor having a tail portion, a contacts portion, and a bendable portion;
a seal including electrical contacts disposed to align with the contacts portion of the sensor and to allow electrical signals to pass through the seal;
a support including a distal surface and features for sealably coupling to an electronics assembly; and
a sharp including a channel for supporting the tail portion of the sensor and a hub for gripping the sharp during retraction,
wherein the seal is shaped to enclose the contacts portion of the sensor within the support.
2. The sensor assembly of claim 1 , wherein the seal is formed from flexible material and includes a hinge allowing the seal to be folded around the contacts portion of the sensor, sealing both sides of the contacts portion.
3. The sensor assembly of claim 1 , wherein the bendable portion of the sensor facilitates having a major surface of the contacts portion of the sensor substantially parallel with a circuit board of an electronics assembly when the sensor assembly is mated to the electronics assembly while also concurrently facilitating having the tail portion of the sensor substantially perpendicular to the major surface of the contacts portion.
4. The sensor assembly of claim 1 , wherein the seal comprises silicone.
5. The sensor assembly of claim 1 , wherein the seal comprises silicone and the electrical contacts comprise doped silicone.
6. The sensor assembly of claim 1 , wherein the seal is adapted to fold over the contacts portion of the sensor.
7. The sensor assembly of claim 6 , wherein the seal comprises two discrete pieces.
8. The sensor assembly of claim 6 , wherein the seal comprises two sections coupled together by a living hinge, the two sections adapted for placement on opposite sides of the contacts potion of the sensor.
9. The sensor assembly of claim 8 , wherein the two sections are symmetrical.
10. The sensor assembly of claim 1 , wherein the support is a rigid or semi-rigid housing adapted to receive the seal.
11. The sensor assembly of claim 10 , wherein the support comprises at least one post and the seal comprises at least one an aperture for receiving the at least one post.
12. The sensor assembly of claim 10 , wherein the support is adapted to receive the sharp.
13. The sensor assembly of claim 1 , wherein the seal comprises a raised lip.
14. The sensor assembly of claim 13 , wherein the raised lip encircles the electrical contacts of the seal.
15. The sensor assembly of claim 13 , wherein the raised lip is integrally formed in the seal.
16. The sensor assembly of claim 13 , wherein the raised lip is embodied as a gasket or O-ring.
17. The sensor assembly of claim 1 , wherein the sensor assembly is shaped to fit within a socket of the electronics assembly.
18. The sensor assembly of claim 1 , further comprising a clip or snap feature for mating with the electronics assembly.