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发明公开
CN101873872A 用于粉末和液体药物的药筒 无效 - 驳回 复审申请

用于粉末和液体药物的药筒
摘要：
用于保持和混合医用产品的药筒或注射器(10)，包括管状主体(16)，其包括具有相对的第一和第二端部(28，30)的圆筒形壁(26)。壁具有内部和外部表面(34，36)，内部表面至少沿药物混合区域具有基本恒定的横截面。第一阻隔件(18)滑动设置在第一和第二端部之间的壁内，第一阻隔件与内部表面形成液体紧密密封；第二阻隔件(20)滑动设置在第一和第一端部之间的壁内，第二阻隔件与内部表面形成液体紧密密封。柔性插入件(22)设在第二端部处或附近，柔性插入件与壁形成液体紧密密封，柔性插入件可由医用针头或其它刺穿工具刺穿。刚性保持器(24)固定到壁上并具有开口，用于接近插入件以便由医用针头刺穿。插入件延伸到保持器内并横过开口形成液体紧密密封。
摘要（英）：

A cartridge or injector (10) for holding and mixing a medical product is provided herein including a tubular body (16) having a cylindrical wall (26) having first (28) and second (30) opposing ends. The wall includes inner (34) and outer (36) surfaces with the inner surface having a generally constant cross-section along at least a drug mixing area. A first stopper (18) is slidably disposed within the wall between the first and second ends, the first stopper defining a liquid-light seal with the inner surface. A second stopper (20) is slidably disposed within the wall between the first stopper and the first end, the second stopper defining a liquid-tight seal with the inner surface. A flexible insert (22) is disposed at or in proximity to the second end, the insert forming a liquid-tight seal with the wall, the insert being pierceable by a medical needle or other piercing instrument. A rigid retainer (24) is fixed to the wall having an opening therein for providing access to the insert for piercing by a medical needle. The insert extends into the retainer and forms a liquid-tight seal across the opening.

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