US 12,433,516 B2
Detecting an analyte in a body fluid
Helmut Walter, Heppenheim (DE)
Assigned to ROCHE DIABETES CARE, INC., Indianapolis, IN (US)
Filed by Roche Diabetes Care, Inc., Indianapolis, IN (US)
Filed on May 23, 2024, as Appl. No. 18/672,735.
Application 18/672,735 is a continuation of application No. 18/228,340, filed on Jul. 31, 2023, granted, now 12,011,268.
Application 18/228,340 is a continuation of application No. 16/068,743, granted, now 11,759,133, previously published as PCT/EP2017/052387, filed on Feb. 3, 2017.
Claims priority of application No. 16154469 (EP), filed on Feb. 5, 2016.
Prior Publication US 2024/0315617 A1, Sep. 26, 2024
Int. Cl. A61B 5/1486 (2006.01); A61B 5/00 (2006.01); A61B 5/145 (2006.01); A61B 5/15 (2006.01)
CPC A61B 5/14865 (2013.01) [A61B 5/14503 (2013.01); A61B 5/14532 (2013.01); A61B 5/150969 (2013.01); A61B 5/6849 (2013.01); A61B 5/150022 (2013.01); A61B 2560/063 (2013.01); A61B 2562/166 (2013.01); A61B 2562/242 (2013.01)] 44 Claims
OG exemplary drawing
 
1. An assembly of components for mounting an analyte sensor and an electronics compartment on a user, the assembly comprising:
a housing defining a sealed sensor compartment, the housing comprising an upper cap, a lower cap, and an electronics compartment, the electronics compartment receiving at least a portion of an electronics unit, the housing further comprising an intermediate component;
a lower cover configured for removal from the assembly prior to analyte sensor insertion;
an analyte sensor comprising an insertable portion, the insertable portion being adapted for at least being partially inserted into the user's body tissue; and
a cannula attached to the upper cap, the cannula comprising an insertable portion, and the insertable portion of the analyte sensor being received inside the insertable portion of the cannula,
the electronics compartment and the sealed sensor compartment being connected to each other via at least one sealed opening, the analyte sensor extending from the sealed sensor compartment through the sealed opening to the electronics compartment,
the analyte sensor being operably connected to the electronics unit,
the electronics compartment defining a cannula aperture extending from an upper surface opening to a lower surface opening,
the lower cap sealing the lower surface opening of the electronics compartment, the lower cap comprising an interior volume receiving the insertable portion of the cannula and the insertable portion of the analyte sensor,
the upper cap sealing the upper surface opening of the electronics compartment,
the lower cap being configured for removal prior to insertion of the analyte sensor,
the upper cap and the cannula being configured for removal from the electronics compartment after insertion of the analyte sensor,
the insertable portion of the cannula extending within the sealed sensor compartment in a direction downwardly from the upper cap, through the cannula aperture, and beyond the lower surface opening, the insertable portion of the analyte sensor extending in a direction downwardly within the cannula and beyond the lower surface opening, and the lower cap extending in a direction downwardly from the electronics compartment,
the housing having a sealed condition, prior to insertion of the analyte sensor, in which the upper cap, the lower cap and the electronics compartment form the sealed sensor compartment surrounding and sealing the insertable portion of the cannula and the insertable portion of the analyte sensor from an external environment,
the upper cap and the electronics compartment moving together to insert the cannula and the insertable portion of the analyte sensor into the user's body tissue, and
the upper cap and the cannula being configured to moved together to remove the cannula from the user's body tissue after insertion of the insertable portion of the analyte sensor, leaving the analyte sensor implanted in the user's body tissue,
wherein the upper cap is detachably connected to the intermediate component at an at least one upper predetermined breaking point, and/or wherein the lower cap is detachably connected to the intermediate component at an at least one lower predetermined breaking point.