Embolectomy apparatus for intravascular embolectomy and application of embolectomy apparatus

A blood vessel and thrombus technology, applied in the field of thrombectomy device, can solve the problems of complex structure, inability to use intracranial blood vessels, and inconvenient retraction and deployment.
CN106388902AInactive Publication Date: 2017-02-15้ซ˜ไธ้ƒŽ
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
้ซ˜ไธ้ƒŽ
Publication Date
2017-02-15
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention relates to an embolectomy apparatus for intravascular embolectomy and an application of the embolectomy apparatus. The embolectomy apparatus comprises a stent portion, a tectorial membrane portion, a proximal portion, a push-pull rod and a micro catheter. The stent portion is of a meshed structure, and the stent, under a release state, is expanded as a hollow tubular structure; many holes are formed in the far end of the tectorial membrane, so as to facilitate passing of a blood flow; the proximal portion is of a triangular or elliptic meshed opening structure with the end connected to the push-pull rod; and by virtue of the micro catheter, the embolectomy apparatus for the intravascular embolectomy is transported. With the application of the tectorial membrane stent-type embolectomy apparatus provided by the invention, acute thrombosis formed in minute blood vessels, in particular in cerebral blood vessels, can be removed conveniently; the embolectomy apparatus can prevent the prolapse of the thrombosis from meshes of the stent and protect openings of branch vessels from getting blocked; and in addition, damage to the inner walls of the blood vessels caused by steel strips of the stent. The embolectomy apparatus provided by the invention is simple, convenient and safe to operate and is convenient for popularization; and the embolectomy apparatus is applicable to broad ordinary people at salaried class.
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Description

technical field

[0001] The invention belongs to the field of medical devices, and in particular relates to a thrombus remover for intravascular thrombus removal and an application thereof. Background technique

[0002] Acute ischemic cerebral infarction is the damage of nerve tissue caused by ischemic necrosis of local brain tissue due to sudden blockage of cerebral artery blood flow. 70%-80% of patients with severe symptoms requiring arteriography can see emboli or thrombus obstruction, and larger artery obstruction can cause 53%-92% of patients to die. Arterial recanalization is the key to the treatment of acute ischemic cerebral infarction. Currently, there are two conventional methods for the treatment of acute ischemic cerebral infarction: interventional thrombolysis and mechanical thrombectomy. Intravascular thrombolysis is to inject a thrombolytic agent into the vicinity of the thrombus blocking the artery through the catheter, and form a high concentration of throm...

Claims

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