DEVICE AND SYSTEM FOR SAMPLING BODY FLUID AND ITS ANALYSIS Russian patent published in 2014 - IPC A61B5/151 A61B5/155 A61B5/157 

FIELD: medicine.

SUBSTANCE: invention relates to field of medicine, namely to sampling body fluid for the analysis, that is for determination of tested substance concentration. In particular it relates to devices and systems for obtaining a small sample of body fluid by puncturing subject's (person's or animal's) skin by means of disposable puncture element, which has tip for skin puncturing, suitable for creating a small wound, from which fluid is sampled. Described is device for sampling body fluid for analysis by skin puncturing by means of puncturing element, which has tip for skin puncturing. Claimed device has case, drive for puncturing, pressure ring and device for pressure force control. Drive for puncturing is located inside case for connection to puncturing element and for driving puncturing element, connected to it, in puncturing movement, during which puncturing element after trigging puncturing movement moves in direction of puncturing until it reaches point of maximal displacement, and in opposite direction after it reaches point of maximal displacement. Pressure ring surrounds opening for contact with skin and is made with possibility of pressing to skin. Opening for contact with skin has area of opening corresponding to circle with diameter, at least, 1.5 mm, but not larger than 4 mm. Device for pressure force control for controlling pressure force between pressure ring and skin at the time of triggering puncturing movement, which must be equal, at least, 3 H, preferably, at least, 4 H, and the most preferably, at least, 5 H. In the second version of implementation device for sapling body fluid has pressure ring, which has surface region in form of narrow ring, surrounding opening for contact with skin and transferring at the time of practical device application, at least, 70% of forces, acting between device and skin. Ring is on, at least, part of its circumference length, not more than 1.5 mm wide, preferably, not more than 1.2 mm wide, the most preferably, not more than 1 mm wide. System for obtaining body fluid sample for analysis by skin puncturing contains one of above mentioned manual devices for multiple use and puncturing element, made with possibility of connection with possibility of replacement to device drive.

EFFECT: technical result of invention consists in simplicity of application, minimal pain and minimal volume, weight and production cost.

23 cl, 5 dwg