The invention discloses a
micro injection mould for a biodegradable
vascular stent and belongs to the technical field of
polymer injection moulds. The
micro injection mould for the biodegradable
vascular stent is characterized by adopting a single-cavity injection mould with a split type mould cavity structure, four-time parting, multi-point
sprue feeding and multiway sequential core pulling of an inclined sliding block, wherein the single-cavity injection mould comprises a mould frame part, a side parting part, a mould
temperature control part and a vacuumizing part; and the
micro injection mould for the biodegradable
vascular stent mainly comprises a positioning ring, a
sprue sleeve, a fixed mould fixed plate, a demoulding runner plate, a fixed template, a moveable template, a pad plate, a moveable mould fixed plate, a sliding block, a sliding block pressing plate, a limited
steel ball, a wedge block, an inclined guide column, a mould core, a
heating oil channel, a cooling
water channel, a sealing ring, a limited rod, a spring, a guide column, a guide sleeve, a nylon sleeve fixed block and a nylon sleeve. The micro injection mould for the biodegradable vascular
stent has the beneficial effects of forming the vascular
stent at one step, guaranteeing the size precision, the surface quality, the integral strength and the fatigue performance required by the
stent, realizing automatic production, improving the production efficiency and reducing the manufacturing cost of the vascular stent.