Analyte sensor and apparatus for insertion of the sensor
An apparatus for insertion of a medical device in the skin of a subject is provided.
1. A sensor insertion assembly comprising:
an inserter device comprising:
an analyte sensor at least a portion of which is configured to be positioned under a skin surface of a subject,
a sharp coupled with a sharp support; and
a cap removably attached to a distal portion of the inserter device by a plurality of threads, the cap including a first interior space, wherein the at least a portion of the analyte sensor and at least a portion of the sharp are housed within the first interior space.
2. The sensor insertion assembly of claim 1 , wherein the first interior space comprises a substantially sterile environment.
3. The sensor insertion assembly of claim 1 , wherein the plurality of threads comprises a first plurality of threads disposed on an interior surface of the cap and a second plurality of threads disposed on an exterior surface of the inserter device.
4. The sensor insertion assembly of claim 3 , wherein the inserter device further comprises a handle, and wherein the second plurality of threads is disposed on an exterior surface of the handle.
5. The sensor insertion assembly of claim 1 , wherein the cap contains a desiccant configured to remove moisture from the first interior space.
6. The sensor insertion assembly of claim 5 , wherein the desiccant comprises one or more of a silica gel or a molecular sieve.
7. The sensor insertion assembly of claim 5 , wherein the desiccant comprises one or more of a plurality of granular pellets or a tablet.
8. The sensor insertion assembly of claim 1 , wherein the cap is configured to be removed from the distal portion of the inserter device and to expose the at least a portion of the analyte sensor and the at least a portion of the sharp.
9. A sensor insertion assembly comprising:
an inserter device comprising:
an analyte sensor at least a portion of which is configured to be positioned under a skin surface of a subject,
a sharp coupled with a sharp support; and
a cap removably attached to a distal portion of the inserter device, the cap including a first interior space, wherein the at least a portion of the analyte sensor and at least a portion of the sharp are housed within the first interior space, wherein the cap comprises an upwardly extending boss including a second interior space, wherein the upwardly extending boss extends into the first interior space.
10. The sensor insertion assembly of claim 9 , wherein the at least a portion of the analyte sensor and the at least a portion of the sharp are disposed within the second interior space of the upwardly extending boss.
11. The sensor insertion assembly of claim 9 , wherein the upwardly extending boss comprises a cylindrical shape.
12. The sensor insertion assembly of claim 9 , wherein the upwardly extending boss is disposed on an interior surface of the cap.
13. The sensor insertion assembly of claim 9 , wherein the cap is removably attached to the distal portion of the inserter device by a plurality of threads.
14. The sensor insertion assembly of claim 9 , wherein the inserter device further comprises:
a sheath having a distal surface for placement on the skin surface of the subject;
a handle movable relative to the sheath; and
an analyte monitoring assembly including a power source and electronics coupled to the analyte sensor, wherein the analyte monitoring assembly comprises an aperture through which the at least a portion of the sharp can pass.
15. A sensor insertion assembly comprising:
an inserter device comprising:
an analyte sensor at least a portion of which is configured to be positioned under a skin surface of a subject,
a sharp coupled with a sharp support;
a sheath having a distal surface for placement on the skin surface of the subject;
a handle movable relative to the sheath; and
an analyte monitoring assembly including a power source and electronics coupled to the analyte sensor, wherein the analyte monitoring assembly comprises an aperture through which the at least a portion of the sharp can pass; and
a cap removably attached to a distal portion of the inserter device, the cap including a first interior space, wherein the at least a portion of the analyte sensor and at least a portion of the sharp are housed within the first interior space.
16. The sensor insertion assembly apparatus of claim 15 , wherein the handle is advanceable by application of manual force to the handle.
17. The sensor insertion assembly of claim 15 , wherein the handle at least partially surrounds the sheath.
18. The sensor insertion assembly of claim 15 , wherein the inserter device further comprises a spring configured to bias the sheath in a distal direction relative to the handle.
19. The sensor insertion assembly of claim 15 , wherein the inserter device further comprises a carriage configured to releasably hold the analyte monitoring assembly.
20. The sensor insertion assembly of claim 15 , wherein the analyte monitoring assembly has a substantially circular profile.