Patent ID: 9261499
Filing Date: 2016-02-16
CPC Classification: G01N

Claim Text:
1. A biochemical device, including: a biochemical detection unit for detecting a sample having at least one epitope for reacting with the biochemical detection unit, including: a light source for illuminating the receptor and the photoconductor, wherein the sample bound to the affinity site of the receptor blocks light from the light source to the photoconductor plate and causes the variation in resistance value of the photoconductor plate; and a primary channel for the sample entering first and at least one sub-channel for the sample entering later on; wherein the at least one sub-channel communicates with the primary channel through an opening, wherein the photoconductor plate is disposed in the primary channel or the sub-channel, at least one portion of the sample from the primary channel enters at least one sub-channel towards the photoconductor plate; and a sampling unit, disposed by the opening and electrically connected to the resistance sensing component, for selectively allowing the sample to enter the sub-channel upon concentration of the sample, wherein the resistance sensing component outputs a control signal to the sampling unit for the sampling unit closing the opening when the resistance sensing component senses the resistance value varying over a default value.