ELECTRODE DEVICE FOR MEASURING BIOELECTRIC POTENTIALS Russian patent published in 2024 - IPC A61B5/24 B82Y5/00 

FIELD: medical equipment.

SUBSTANCE: electrode device for measuring bioelectric potentials contains a dielectric porous contact element located in a dielectric housing. Contact element contains at least sixteen dielectric porous plates of the same diameter. Pores of the plates are filled with silver nanoparticles and are impregnated with an electrolyte. Plates are electrically connected to each other with silver-containing paste by means of sintering. On the non-working side of the upper plate there is a recess with an applied layer of silver, which is electrically connected through a current-carrying silver element to a conductor for connection to the input of the electrographic device. Sealant is applied on the non-working side of the contact element. Lower plate is made with a projection for installation in the hole of the bottom of the housing. Plates between upper and lower plates are made with thickness of not more than 0.8 mm. Upper and lower plates are made with height of not more than 1.5 mm. Plates of the contact element are made of aluminum-silicon oxide ceramic with the size of interconnected pores of 1–5 mcm. Pores of the plates are filled with silver nanoparticles throughout the thickness of the plate so that their weight in different layers of each plate is 4.4–48.4% with respect to the total weight of the remaining components of the composition, from which the plate is made. Silver nanoparticles have spherical and ellipsoidal shape with diameter of 57–142 nm.

EFFECT: reducing the level of intrinsic noise of the electrode device to zero for recording signals of bioelectric activity of various human organs and tissues from units of nanovolts.

2 cl, 10 dwg