Edge closing process for integrated woven covered stent
A covered stent, an integrated technology, is applied in the field of medical devices to achieve the effects of outstanding creativity and novelty, improved support performance and anti-slip performance, and strong process practicability
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[0027] In order to make the present invention more obvious and understandable, the preferred embodiments are described in detail as follows in conjunction with the accompanying drawings:
[0028] Such as Figure 1-2 As shown, the present invention provides an integrated braided film-covered stent edge trimming process, including the initial edge trimming process and the end end edge trimming process; including the following steps:
[0029] Step 1: Use a frustum-shaped braiding mold instead of a cylindrical mold at the initial stage of weaving, and only use metal fiber weaving at the initial stage of weaving to obtain the initial end bracket;
[0030] Step 2: When the stent is woven into the cylindrical part, the polymer fiber or yarn participates in the weaving;
[0031] Step 3: When the stent graft is woven to an effective length, the polymer fibers or yarns therein no longer participate in weaving, while the metal fibers therein continue to weave forward;
[0032] Step 4: ...
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