Triboelectric sensor and thromboelastography instrument

Abstract

This application relates to the field of coagulation detection and discloses a triboelectric sensor and a thromboelastography instrument. The triboelectric sensor includes a housing, an electrode module, and a static friction layer. The housing includes a shell and a cover, with an opening at one end of the shell. The cover closes to the opening and has a through hole for dripping blood into the shell. The electrode module is attached to the bottom of the shell and includes a first electrode layer and a second electrode layer, which are spaced apart. The static friction layer is in close contact with the side surface of the electrode module facing away from the bottom of the shell and covers the electrode module. The housing is rotatable about a first axis to drive the blood droplet to move along the surface of the static friction layer toward the cover toward either the first or second electrode layer. When the blood droplet moves, the electrode module generates a voltage signal. The above-mentioned triboelectric sensor has a simple structure, low cost, and facilitates the miniaturization of thromboelastography instruments.

Images