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PISTON POUR UTILISATION DANS UNE SERINGUE AVEC UN RAPPORT DIMENSIONNEL SPECIFIQUE D'UNE STRUCTURE D'ETANCHEITE
专利权人:
INJECTO A/S
发明人:
HETTING, MIKKEL
申请号:
CA2914532
公开号:
CA2914532A1
申请日:
2014.06.04
申请国别(地区):
CA
年份:
2014
代理人:
摘要:
The present invention relates to 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 having axial dimensions parallel with the longitudinal axis, characterised in that 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 other aspects the invention relates to an injector comprising the piston and to the use in a disposable syringe of the piston. The piston can prevent refilling of a syringe.
来源网站:
中国工程科技知识中心
来源网址:
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