BJUK KENNET M.,БЬЮК Кеннет М.,IGOU MAJKL P.,ИГОУ Майкл П.,BLEJKNI DEREK,БЛЕЙКНИ Дерек,IRLZ RONALD G.,ИРЛЗ Рональд Г.
申请号：
RU2013137853
公开号：
RU2564085C2
申请日:
2011.05.27
申请国别(地区):
RU
年份:
2015
代理人:
摘要：
FIELD: medicine.SUBSTANCE: group of inventions refers to medical equipment, namely to devices and methods for stent delivery into a body vessels. A plunger assembly for a stent delivery device comprises a distal end of an elongated inner element and a stent coupling element having a proximal end and a distal end. The proximal end of the stent coupling element is found at least partially inside the distal end of the elongated inner element. The stent coupling element comprises a segment, which extends in the radial direction outwards to the distal end of the stent coupling element. The stent coupling element is configured to move the stent if advanced in the distal direction, and to keep stent immobile if retracted in the proximal direction. The stent coupling element has a notch. The elongated inner element comprises an inner layer filling the notch at least partially. The stent delivery device comprises an elongated outer element at least partially forming an outer element lumen the elongated inner element is coaxially positioned inside the outer element lumen, and the above plunger assembly. A method for producing the plunger assembly involves the stage of mechanical attachment of the proximal end of the stent coupling element at least partially inside the distal end of the elongated inner element. The stage of mechanical attachment involves filling the notch with the inner layer at least partially. The stent delivery system comprises a stent and a stent delivery catheter. The stent has a radially compressed configuration and a radially extended configuration. The stent has a proximal end, a distal end, a length between the proximal and distal lengths and a set of lengthwise holes. The stent delivery catheter comprises an elongated tubular element having a proximal end and a distal end an elongated inner tubular element having a proximal end and a distal end, and the stent coupling element. The stent is kept in the radially compressed configuration inside the dist
