Patent ID: 7575718

Claim:
A fluid feeding system comprising: a flow channel unit comprising at least a flow channel for feeding a sample fluid containing a sample to a sensor surface for detecting reaction of said sample, an inlet opening for introducing said sample fluid into said flow channel, an outlet opening for draining said sample fluid out of said flow channel, and pipette catchers formed at said inlet and outlet openings; and a fluid feeding apparatus comprising a pipette head having a couple of pipettes for sucking and ejecting said sample fluid, a device for moving said pipette head to said flow channel unit as positioned removably on a designated stage, and pressing ends of said pipettes onto said pipette catchers, to inject said sample fluid into said flow channel, wherein either said ends of said pipettes or said pipette catchers are formed from a soft material so as to be deformed resiliently when said ends of said pipettes are pressed onto said pipette catchers.