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CONSTANT FORCE SYRINGE
专利权人:
发明人:
Kevin P. COWAN,Barry L. TUCKER
申请号:
US13797959
公开号:
US20140276451A1
申请日:
2013.03.12
申请国别(地区):
US
年份:
2014
代理人:
摘要:
Various syringe systems are disclosed. One such syringe system may include a body having a hollow lumen and a distal end, a vacuum chamber disposed within the hollow lumen of the syringe body, a first plunger connected to a distal portion of the vacuum chamber, the first plunger forming a first seal against an inner surface of the syringe body and defining a fluid delivery volume between the first plunger and the distal end of the syringe body, a second plunger disposed within the vacuum chamber, the second plunger forming a second seal against an inner surface of the vacuum chamber and defining a proximal and distal volume compartments within the vacuum chamber, and a piston affixed to the second plunger, the piston configured to move the second plunger within the vacuum chamber, thereby altering a volume of the proximal volume compartment and a volume of the distal volume compartment.
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中国工程科技知识中心
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http://www.ckcest.cn/home/

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