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Thrombus taking stent system with near-end protection and far-end protection functions

A protective function and stent system technology, applied in the field of medical devices, can solve problems such as prolonging operation time and increasing patient risk, and achieve the effects of improving operation efficiency, shortening operation time, and improving thrombus capture efficiency

Pending Publication Date: 2021-08-06
JIANGSU NOWYON MEDICAL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This plan adds an extra interventional operation, which increases the risk of the patient in the operation and prolongs the operation time

Method used

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  • Thrombus taking stent system with near-end protection and far-end protection functions
  • Thrombus taking stent system with near-end protection and far-end protection functions
  • Thrombus taking stent system with near-end protection and far-end protection functions

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Embodiment Construction

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0041] Such as figure 1 As shown, the present invention provides a technical solution: a thrombectomy bracket system with proximal protection and distal protection functions, including an outer sheath tube 1, a push rod 5, a proximal protection device 4, a thrombectomy bracket 7, a distal End protection device 10; the outer sheath tube 1 is a hollow tubular structure, the push rod 5 is a slender rod, and the proximal end is inserted in the outer sheath tube 1;...

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Abstract

The invention discloses a thrombus taking stent system with near-end protection and far-end protection functions. The thrombus taking stent system comprises an outer sheath tube, a push rod, a near-end protection device, a thrombus taking stent and a far-end protection device. The thrombus taking stent system has the advantages that in the thrombus taking process, the far-end protection device can filter blood clots or atherosclerotic plaques flowing in the blood flow direction, and small thrombi or plaques are effectively prevented from continuously entering blood vessels. When the thrombus taking stent system is withdrawn after thrombus capture, the near-end protection device can completely store the thrombus taking stent and thrombi captured on the stent, so that the possibility that the thrombi or plaque falls off when the thrombus taking stent is withdrawn into a micro catheter is effectively reduced, and the thrombus capture efficiency can be effectively improved. According to the thrombus taking stent system, before the thrombus taking stent is released, the far-end protection device does not need to be withdrawn to adjust the thrombus taking position, and the positioning accuracy of the thrombus taking stent can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a thrombectomy support system with proximal and distal protection functions. Background technique [0002] Stroke is a common cerebrovascular disease with high morbidity, mortality and disability. According to reports, about 80% of surviving cerebrovascular patients have different degrees of limb dysfunction. About 43.7% of the patients cannot take care of themselves. Intravenous injection of rt-PA thrombolysis is currently a commonly used treatment for acute cerebral infarction, but it takes a long time to treat, causes great damage to the ischemic brain tissue, and is accompanied by a risk of bleeding, and the recanalization rate is very low. Among them, basilar artery thrombolysis The rate of thrombus recanalization is only about 30%, the rate of thrombolytic recanalization of lesions in the terminal carotid artery is only 6%, and the rate of thrombolytic recanalizati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/22
CPCA61B17/22A61B2017/22038A61B2017/22042A61B2017/22048A61B2017/22051
Inventor 王媛媛
Owner JIANGSU NOWYON MEDICAL CO LTD
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