초록 ▼

An evacuated blood-sampling tube has a stopper with a skirt which fits over the open end of the tube. The stopper can be displaced to a venting position, in which an axial groove in the skirt communicates the interior of the tube with the exterior, to facilitate processing of the tube sample, includ

An evacuated blood-sampling tube has a stopper with a skirt which fits over the open end of the tube. The stopper can be displaced to a venting position, in which an axial groove in the skirt communicates the interior of the tube with the exterior, to facilitate processing of the tube sample, including pipetting, with the tube stoppered. The tube may have a bead which engages one annular groove in the stopper to provide a sealing fit and another annular groove in the stopper skirt to define the venting position.

대표청구항 ▼

In combination, a vial-type tube and stopper, the tube comprising a neck having an open end, and the stopper comprising a hollow generally cylindrical body of deformable material having a head including a sealing membrane for fitting over and closing the open end of the tube and an integral skirt ex

In combination, a vial-type tube and stopper, the tube comprising a neck having an open end, and the stopper comprising a hollow generally cylindrical body of deformable material having a head including a sealing membrane for fitting over and closing the open end of the tube and an integral skirt extending from the head for sealably fitting over the neck of the tube, and means defining in the stopper at least one axially-directed groove extending from the edge of the skirt at least partly along the inner surface of said skirt, said stopper being outwardly movable on the tube from a sealing position in which part of the inner wall of the skirt sealably fits around the outer wall of the tube neck to a venting position in which said axially-directed groove communicates the interior of the tube with the exterior.