| 摘要 |
A circular arc shaped flow path (21) is formed as a microfluidic flow path in a sheet-like microfluidic chip (20). A roller (15) on a rotor (10) is pressed against the circular arc shaped flow path (21) in the microfluidic chip (20), the rotor (10) is rotary-driven by a driving motor 4, and the circular arc shaped flow path (21) is caused to make a peristaltic motion by rotation of the rotor (10), to send a liquid in the flow path. On the flat surface of the rotor (10), a plurality of rollers (15) are held so as to be pressed in contact with the circular arc shaped flow path (21), to freely rotate on the flat surface perpendicular to a rotary shaft (13) of the rotor (10). The circular arc shaped flow path (21) is disposed along the rotational trajectory of the plurality of rollers (15). |
| 主权项 |
1. A micro peristaltic pump comprising:
a base having a chip housing portion; a sheet-like microfluidic chip housed in the chip housing portion, and having a circular arc shaped flow path which swells out of a flat surface in a substantially mountain shape at its cross section, to be formed into a circular arc shape: a rotor installed in the base so as to be able to he rotary-driven opposite the flat surface of the microfluidic chip a plurality of free-rotating bodies held so as to be pressed in contact with the circular arc shaped flow path to he freely rotatable on a flat surface perpendicular to a rotary shaft of the rotor: a rotary driving means which is attached to an attaching portion of the base, and rotatory-drives the rotor: and a solid member fixed to the base so as to cover the microfluidic chip, wherein the circular arc shaped flow path is formed such that its radius is the same as a radius of the rotational trajectory of the free-rotating bodies, the rotor is installed so as to be rotatable in an opening portion provided near the chip housing portion of the base, the sheet-like microfluidic chi is house n the chip housing portion with the circular arc shaped flow path faced toward the rotor, the solid member is fixed to the base so as to cover the microfluidic chi) from a side opposite to the free-rotating bodies on the rotor and so as to be detachable by a retainer, and the microfluidic chip is exposed so as to be detachable when the solid member is detached. |
