ХИБ Мартин Г. (US),ХЭДЖИСЕК Дэвид Дж. (US),НАЙСТРОМ Сидни Д. (US)
申请号：
RU2011126168/14
公开号：
RU2011126168A
申请日:
2009.11.17
申请国别(地区):
RU
年份:
2013
代理人:
摘要：
1. A method of blocking a fluid injection assembly of a fluid injection system, wherein the assembly includes a plunger rod, a syringe and a plunger, and the method includes the steps of: isolating the syringe from all the ducts of the injection assembly in a downward direction； the syringe to a second position in the syringe so that a vacuum is created in the syringe below the plunger； while the plunger is in working engagement with the plunger rod in the first position； the plunger is configured to disengage from the plunger rod in the second position and move back to the first position when disengaged from the plunger rod. 2. The method of claim 1, wherein the vacuum creates a suction force to disengage the plunger from the plunger rod. The method according to claim 1, wherein the inner diameter of the syringe is larger in the second position than in the first position, so as to facilitate disengagement of the plunger with the plunger rod. The method according to claim 1, wherein: the working engagement of the plunger with the plunger rod includes a plunger docking device configured to engage with the rod engagement device； the plunger docking device includes a series of petals formed in a radially expanding / contracting portion of the plunger side wall, the petals protrude into the plunger cavity, the plunger cavity is defined by the side wall； the device for engaging the plunger rod includes a recess formed at the proximal end end portion of the plunger rod； and when the plunger rod is retracted to the second position, the expanding / contracting portion of the side wall of the plunger expands to facilitate1. Способ блокирования узла нагнетания жидкости системы для инъекции жидкости, где узел включает шток плунжера, шприц и плунжер, и способ включает в себя этапы, на которых:изолируют шприц от всех протоков узла нагнетания в нисходящем направлении；отводят шток плунжера из первого положения в шприце во второе положение в шприце так, что в шприце ниже плунжера с
