Device for treating microfluidic sample

A microfluidic sample processing device, comprising:

• a tray apparatus, for accommodating a reagent and a chip clamp for mounting a microfluidic chip;
• a mechanical arm, having a connecting head for connecting the chip clamp, a gas flow channel for communicating with an inner cavity of the chip clamp being arranged in the connecting head;
• a negative pressure suction apparatus, for providing negative pressure to the gas flow channel of the connecting head;
• a lifting apparatus, for driving the connecting head to rise and fall to connecting the chip clamp or make the chip clamp insert into or separate from the reagent;
• and
• a translation apparatus, for driving the connecting head to move to above the chip clamp or above the reagent;
• wherein, the tray apparatus is positioned below the mechanical arm, and the mechanical arm is arranged on the translation apparatus and is connected to the lifting apparatus,
• wherein one or more kits are mounted on the tray apparatus, each kit comprises a kit body, and the kit body is provided with a waste liquid collection well for inserting the chip clamp and storing waste liquid and one or more reagent wells for storing reagents, and
• wherein the kit body is further provided with a chip return well for depositing the chip clamp, the tray apparatus further comprises a baffle plate, and a part of the chip return well is located directly under the baffle plate.