公开(公告)号：US3589422A

公开(公告)日：1971-06-29

申请号：US3589422D

申请日：1969-03-17

Applicant: BAXTER LABORATORIES INC

Inventor： BELLAMY DAVID JR ,  RALSTON PHILIP GREGORY

IPC: A61J1/00 ,  A61J1/05 ,  B65D1/00 ,  B65D17/06

CPC classification number: A61J1/05 ,  Y10S128/24

Abstract: A sealed bag for containing liquids. Typically made by a blowmolding process from a tube of molten thermoplastic resin. The bag comprises a tubular body of flexible plastic, sealed at one end, and narrowing to an integral tubular neck portion at the other end. A head portion, integral with the neck portion, seals the bag. A tubular recess is formed, typically in the head portion of the bag, for receiving a needle or the like for puncturing the bag to obtain the liquid contents. Generally, the cross section of the bag is oval, and a hanger at one end of the bag is attached thereto at a single station to facilitate collapse of the bag as liquid is withdrawn.