Patent ID: 8336403

Claim:
A pipette tip having a support and a fluid enclosed therein having a function for sustainedly activating the support, comprising: a pipette tip comprising an attachment opening that is to be attached to a nozzle for sucking and discharging a gas and capable of moving relative to an accommodating part group having a liquid accommodating part that accommodates or being capable of accommodating various liquids, or to a connecting tube that is attachable to the nozzle and communicated with the nozzle, and an opening that allows flow-in and flow-out of a liquid in response to the suction and discharging of the gas; a support enclosed in the pipette tip, which adsorbs or captures a biological material in the liquid or reacts with or bonds to the biological material; and a fluid for sustainedly activating the support, which comprises a predetermined liquid or a predetermined gas that is enclosed in the pipette tip in a breakable state and comes into contact with the support, wherein the fluid for sustainedly activating the support is enclosed in a breakable state in the pipette tip by occluding the attachment opening by a perforable member or a detachable lid member or by attaching the attachment opening to the connecting tube in which a perforable member is provided so as to intersect the axial direction of the attachment tube, and by occluding the opening by a detachable cap; wherein the pipette tip is provided with an enclosing part for enclosing the support in the pipette tip, and the enclosing part is provided to an area interposed between the perforable member provided to the attachment opening or the perforable member provided to the lid member or the attached connecting tube and the cap provided to the opening, and the liquid flown in the pipette tip and the enclosed fluid for sustainedly activating the support may pass the enclosing part; and wherein the pipette tip has one or more of support passage preventing members that are provided separately from the pipette tip to partition between the opening and the attachment opening of the pipette tip so that the enclosing part becomes capable of contacting with the flow-in liquid or the enclosed fluid for sustainedly activating the support.