We have developed a special sharpening point Tapercut - T2 with a variable angle of the cutting edges, which allows to penetrate tissue with minimal resistance.
The grinding angles are calculated as follows: when penetrating the tissue the direction of movement of the cutting edges is as close as possible to the trajectory of the rotational movement of needleholder with the needle. This makes it possible to use the force applied to the needleholder more effectively and so to reduce puncture force.