发明名称 |
Ampoule with a seal in two compression states |
摘要 |
Ampoules for dispensing flowable substances and metering systems incorporating the same are described herein. An ampoule for a flowable substance includes an ampoule body comprising an interior space for receiving the flowable substance and an inner circumferential surface having a guide region and a sealing region. A piston may be disposed in the interior space of the ampoule body such that the piston is slidably displaceable along a direction of displacement. The piston includes at least one sealing element for forming a seal with the inner circumferential surface in a contact zone on the outer circumference of the sealing element. The sealing element has a first compression state when the contact zone is in the guide region and a second compression state when the contact zone is in the sealing region. A second blocking device prevents movement of the contact zone from the sealing region to the guide region.
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申请公布号 |
US8409150(B2) |
申请公布日期 |
2013.04.02 |
申请号 |
US201213467372 |
申请日期 |
2012.05.09 |
申请人 |
ZIHLMANN RUEDI;HORISBERGER RONNY-PATRIC;FEHLMANN DANIEL;ROCHE DIAGNOSTICS INTERNATIONAL AG |
发明人 |
ZIHLMANN RUEDI;HORISBERGER RONNY-PATRIC;FEHLMANN DANIEL |
分类号 |
A61M5/315 |
主分类号 |
A61M5/315 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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