Sample detection device

Abstract

The present invention provides a sample detection device, comprising a bottom case and a cover plate, wherein a retainer for holding the sample detecting orifice plate is disposed in the bottom case,and a probe module is disposed at a bottom portion of the retainer, a pressurizer for pressing the sample detecting orifice plate is disposed on the cover plate, the probe module includes an electrically insulating plate and a probe for sample detection, and the probe is used for contacting a contact point on the sample detecting orifice plate, to transmit an electrical signal, the probe is made of metal materials, and includes a probe body, and an elastic contact mounted on the probe body and elastically movable relative to the probe body, a plurality of minute protrusions are formed at a topend portion of the elastic contact, top surfaces of the plurality of minute protrusions form a plane surface as a whole, and between the plurality of minute protrusions is a recess. The sample detecting device can ensure good contact between the probe and the contact and can reduce errors.

Description

Contents of the invention [0001] The invention relates to a sample detection device. Background technique [0002] In the field of biological sample detection, especially in the liquid biopsy detection field, a sample detection device is usually used to detect biological samples. The sample detection device includes: a housing, which is divided into a bottom case and a cover plate; a holding structure, which has a holder arranged in the bottom case of the above-mentioned case, and a pressurizer arranged on the cover plate of the above-mentioned case; sample detection an orifice plate, which is used to contain biological samples, has a box shape, is placed in the accommodating portion of the above-mentioned holder, and is pressurized by the above-mentioned pressurizer to be held by the above-mentioned holding structure; and a probe module, which has The probe is connected to the detection electrode of the sample detection hole plate so as to supply power to the sample detect...

AI Technical Summary

Problems solved by technology

In this case, the contact area between the probe 133 and the contact point 113 is small, and a good contact may not be obtained, resulting in no detection or poor detection accuracy. Moreover, for the alignment accuracy between the probe module and the sample detection orifice plate The requirements are high. If the alignment is not precise, the probe 133 and the contact point 113 of the sample detection hole plate may deviate from each other, and the detection cannot be performed.

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