Patent ID: 8353685

Claim:
A micro peristaltic pump, which comprises: a) an actuating part comprising a motor and a first force effector driven by the motor; b) a cartridge part comprising an elastic membrane attached to a cartridge body comprising at least three chambers having inlets and outlets which are sealingly connected in tandem, wherein said elastic membrane attached to said cartridge body forms an enclosed space further comprising a second force effector which interacts with the first force effector, wherein said first force effector is asymmetrically attached to the motor and is rotated by the motor to interact with the second force effectors configured along a circular track; and c) means for controlling movement of the first force effector to and from said cartridge part in a plane substantially parallel to the plane comprising said cartridge part, whereby said chambers covered by the first force effector are open or closed by the interaction of the first and second force effector, wherein either the first force effector or the second force effector is ferromagnetic, and the other is a ferromagnetic, paramagnetic or other types of magnetic substrate that can generate magnetic force with ferromagnet.