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PISTON FOR USE A SYRINGE WITH SPECIFIC DIMENSIONAL RATIO OF A SEALING STRUCTURE
专利权人:
INJECTO A/S
发明人:
HETTING, MIKKEL
申请号:
SG11201509151X
公开号:
SG11201509151XA
申请日:
2014.06.04
申请国别(地区):
SG
年份:
2015
代理人:
摘要:
A piston for use in an injector comprising a cylinder having a longitudinal axis and an inner wall, which piston has a deformable sealing element with a convex surface, which deformable sealing element when the piston is inserted in the cylinder abuts the inner wall of the cylinder at an abutting interface and seals an annular gap between the piston and the inner wall of the cylinder. The abutting interface and the deformable sealing element have axial dimensions parallel with the longitudinal axis. The ratio between the axial dimension of the abutting interface and the axial dimension of the deformable sealing element is in the range between 0.01 and 0.2. In another aspect, an injector includes the piston and is used in a disposable syringe of the piston. The piston can prevent refilling of a syringe.
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中国工程科技知识中心
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