Cerebral aneurysm embolization therapeutic device and using method thereof

Abstract

Provided in the invention is a cerebral aneurysm embolization therapeutic device and a using method thereof. The invention discloses a suture-contained cerebral aneurysm embolization therapeutic device and a using method thereof. The device comprises a conveying guide wire, a sheath pipe, a skeleton suture, and a PU nanometer electrospining net. The skeleton suture is in a rhombus shape; a nickel-titanium memory alloy wire is connected in a head-to-end mode to form an annular shape and then is drawn to prefabricate and form the rhombus-shaped skeleton suture. A PU nanometer electrospining wire is attached to the surface of the rhombus-shaped skeleton suture; the PU nanometer electrospining wire is interlaced in the rhombus-shaped skeleton suture to form the PU nanometer electrospining net. The skeleton suture is arranged in a shape like a string of beads based on connecting points of the rhombuses; the connecting points of the rhombus-shaped skeleton suture are flexible bonding ones; and the rhombus-shaped skeleton suture in a shape like a string of beads circles into a spiral shape to fill the cerebral aneurysm automatically according to the cerebral aneurysm space structure. According to the invention, the effective embolization area and embolization effect are increased; and the operation difficulty, the treatment cost, and the cerebral aneurysm recurrent risk are reduced. The device is sent into the cerebral aneurysm cavity by a micro pipe, thereby achieving a cerebral aneurysm enclosing objective.

Description

technical field [0001] The invention relates to an internal embolization treatment device for a cerebral aneurysm, in particular to an internal embolization treatment device for a cerebral aneurysm and a use method thereof. Background technique [0002] There are detachable balloons and detachable coils in the embolization treatment devices for cerebral aneurysms. The detachable balloon needs to conform to the direction of blood flow to reach the aneurysm when used, and the clinical maneuverability is poor; in addition, the detachable balloon is difficult to adapt to the irregular shape of the aneurysm, which may rupture the aneurysm and cause aneurysm Finally, the balloon may dislodge after release and cause the risk of ectopic embolism, so it is rarely used clinically for embolization of cerebral aneurysms. [0003] The commonly used detachable spring coils in clinical practice are composed of a single-diameter, double-diameter (2-D) or three-dimensional (3-D) skeleton co...

AI Technical Summary

Problems solved by technology

The disadvantage of this configuration is that a coil that matches the diameter of the aneurysm is first selected for filling, but there is often a gap left after a single coil is filled, and the coils must be filled continuously in order to achieve the purpose of complete filling.

In the c...

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