发明授权
- 专利标题: System for detecting air
- 专利标题(中): 空气检测系统
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申请号: US10174356申请日: 2002-06-17
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公开(公告)号: US06746427B2公开(公告)日: 2004-06-08
- 发明人: Doug Duchon , Thomas Paulson , Vince Copa , Robert F. Wilson , Jiyan Liu
- 申请人: Doug Duchon , Thomas Paulson , Vince Copa , Robert F. Wilson , Jiyan Liu
- 主分类号: A61M3700
- IPC分类号: A61M3700
摘要:
A dual port syringe has an upper port for connection to a fluid reservoir and a lower port for delivery of the medical fluid under pressure to a patient. A first valve is connected between the fluid reservoir and the upper port, and second valve is connected between the lower port and the patient. During a fill operation, a piston is moved within the syringe to drawn fluid from the reservoir into the syringe through the upper port. During injection operation, the piston moves in an opposite direction to force fluid out of the syringe through the lower port.
公开/授权文献
- US20020151854A1 System for detecting air 公开/授权日:2002-10-17