Wearable sensor patches, applicator systems for applying wearable sensor patches, and associated systems, devices, and methods

A disposable, wearable sensor patch, comprising:

• a housing having a first housing portion and a second housing portion configured to mate with one another;
• a filament at least partially positioned exterior the housing at a base surface of the first housing portion, wherein the filament is configured to extend into a user's tissue and is used to detect at least one parameter of an analyte in fluid of the user;
• an electronics subsystem positioned and fluidly sealed within the housing;
• and
• an integrated transmitting unit configured to wirelessly interface with a computing device that is remote from the wearable sensor patch by outputting signals based on the at least one parameter of the analyte,
• wherein the housing includes an interface such that the disposable, wearable sensor patch can be releasably retained by and at least partially positioned within an applicator that is configured to accelerate the disposable, wearable sensor patch toward the user to extend the filament into the user's tissue.

An applicator, comprising:

• a housing portion having an opening at a bottom surface of the housing portion;
• a holder portion configured to releasably hold a wearable patch having a sensor usable to detect a parameter of an analyte in fluid of a user,
• wherein, when the applicator is in a loaded configuration, the holder portion is at least partially positioned within an interior of the housing portion such that the housing portion circumscribes at least a portion of the holder portion;
• a spring positioned within the interior of the housing portion;
• and
• a trigger mechanism configured to initiate a transition the of the applicator from (a) the loaded configuration in which the spring is in a first state of compression to (b) a released configuration such that the spring (i) transitions from the first state of compression to a second, lower state of compression and (ii) accelerates the portion of the holder portion in a direction away from the housing portion toward the opening while the spring transitions from the first state of compression to the second state of compression.