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Development of minimally invasive glucose sensor
Continuous glucose monitoring (CGM) systems, which use a tiny sensor inserted under the skin to check glucose levels in tissue fluid, are becoming an important adjunct for the treatment of type 1 diabetes patients.
However, sensors currently on the market are not small enough; minimization of both sensor diameter and insertion length are essential for the reduction of user physiological and mental load.
We recently developed a unique glucose sensor featuring a localized sensing region in side the tip of a fine tapered tube. As a result, only the tip of this sensor must be inserted into the tissue. Our challenge now is to develop a patch-style sensor with an insertion length of less than 0.5 mm, so the sensor setting process can feel as painless “sticking a patch” rather than “inserting a needle”.
●Keywords
Minimally invasive sensor, continuous glucose monitoring system (CGMS), diabetes
●Research outline
Conventional needle glucose sensor
Patch glucose sensor 
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