US 11,717,193 B2
Invasive biosensor alignment and retention
Arthur Lin, Fremont, CA (US); Xianyan Wang, San Jose, CA (US); and Pey-Jiun Ko, Redwood City, CA (US)
Assigned to DexCom, Inc., San Diego, CA (US)
Filed by DexCom, Inc., San Diego, CA (US)
Filed on Feb. 2, 2021, as Appl. No. 17/165,242.
Application 17/165,242 is a division of application No. 15/703,087, filed on Sep. 13, 2017, granted, now 10,932,699.
Prior Publication US 2021/0290163 A1, Sep. 23, 2021
Int. Cl. A61B 5/145 (2006.01); A61B 5/00 (2006.01); A61B 5/291 (2021.01)
CPC A61B 5/14503 (2013.01) [A61B 5/14532 (2013.01); A61B 5/291 (2021.01); A61B 5/6833 (2013.01); A61B 5/6848 (2013.01); A61B 5/6898 (2013.01); A61B 2560/0406 (2013.01); A61B 2560/0431 (2013.01); A61B 2560/0462 (2013.01); A61B 2560/063 (2013.01); A61B 2562/164 (2013.01)] 10 Claims
OG exemplary drawing
 
8. A method comprising:
obtaining a wearable biosensor comprising:
a housing comprising a first surface defining a first opening, and a second surface opposite the first surface, the second surface defining a second opening, the first and second openings defining a substantially unobstructed pathway through the housing, the first surface configured to be coupled to a skin of a wearer;
a biosensor wire partially disposed within the housing and having an exterior portion extending through the first opening;
a hollow insertion needle positioned within the pathway and extending through the first opening, the hollow insertion needle at least partially encircling the biosensor wire; and
a biosensor retention feature collapsible against the first surface of the housing, the biosensor retention feature encircling and contacting the hollow insertion needle;
applying the wearable biosensor to a wearer's skin comprising:
inserting the hollow insertion needle into the wearer's skin through a puncture,
inserting the biosensor wire through the puncture, and
pressing the housing against the wearer's skin and collapsing the biosensor retention feature against the housing; and
withdrawing the hollow insertion needle from the wearer's skin and the housing.