DEVICE FOR ELECTRIC DIAGNOSTICS OF CONDITION OF HARD TISSUES OF TOOTH Russian patent published in 2006 - IPC A61C19/04 

FIELD: medicine; dentistry.

SUBSTANCE: device for electric diagnostics of condition of hard tissues of tooth has measurement unit, active and passive electrodes. Active electrode has holder made of isolation material. There is tip at the end of electrode. The tip is made of current-conducting material. There is contact element on the tip; the contact element is made in form capillary tube. Elastic tube is fastened to holder. One end of the tube is open and the other one is closed. Closed end of the tube is connected with non-working end of capillary tube. Passive electrode is made in form of contact area. Tip has vertical hole and horizontal hole disposed in perpendicular to the tip; the horizontal hole is provided with thread. Removable capillary tube in mounted inside vertical hole; the capillary tube is capable of moving along the hole. Non-working end of capillary tube is connected with elastic tube by connecting coupling. Rest screw is mounted inside threaded hole. Closed end of elastic tube is made in form of elastic bottle placed inside rigid cylindrical case provided with lateral slot along its middle part. Elastic clamp is put onto case. Protecting case is disposed between bottle and case at its top part. Removable dozer in form of plate being congruent to case is mounted onto case. There is vertical protrusion at one end of dozer. The protrusion goes into slot of case for interaction with protecting case. The other end of plate of dozer is inserted into elastic casing. Silver contact area of passive electrode is disposed onto elastic substrate. Removable dozer has vertical protrusion which height can differ.

EFFECT: improved precision of measurement.

1 dwg