Thrombectomy device

A guide wire and handle technology, applied in medical science, surgery, etc., can solve the problems of high support force of thrombectomy stent, damage to blood vessel wall, thrombus embedding, etc., and achieve the effect of improving efficiency, reducing movement resistance and reducing damage.

Inactive Publication Date: 2018-07-24
威海维心医疗设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, after the above-mentioned thrombectomy stent device is released from the microcatheter, the support force of the thrombectomy stent to the blood vessel wall is determined by its own material and structure, which is extremely easy to occur. The support force of the thrombus stent is too high to damage the vessel wall, or the support force of the thrombus retrieval stent is too low to fully embed the thrombus

Method used

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Embodiment Construction

[0022] In the following, the present invention will be specifically described through exemplary embodiments. It should be understood, however, that elements, structures and characteristics of one embodiment may be beneficially incorporated in other embodiments without further recitation.

[0023] In the description of the present invention, it should be noted that (1) the proximal end and the distal end described in the present invention are positions known to those skilled in the art, so they are explained here; (2) the terms "inside", The orientation or positional relationship indicated by "outside", "upper", "lower", "front", "rear" etc. is based on the positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating Or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cann...

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Abstract

The invention provides a thrombectomy device. The thrombectomy device comprises a first thrombectomy bracket, a delivery catheter and a tensioning guide wire, the end portion of the delivery catheteris fixedly connected to the a proximal end of the first thrombectomy bracket to drive the first thrombectomy bracket to move, the outside of the tensioning guide wire is sleeved with the delivery catheter, and the end portion, close to the first thrombectomy bracket, of the tensioning guide wire extends out of the catheter and is fixedly connected to a distal end of the first thrombectomy bracket.The invention can achieve an effective adjustment of the supporting force.

Description

technical field [0001] The invention belongs to the technical field of intracranial thrombectomy, and in particular relates to a thrombectomy device. Background technique [0002] At present, the performance requirements for intracranial thrombectomy stents can be summarized into four points: namely, delivery performance, support performance, thrombus grasping performance and thrombus pulling performance. It is generally believed in the industry that an ideal thrombus retrieval stent should have the following characteristics: easy delivery, easy release with obvious support, effective capture of thrombus, and thrombus not falling off during thrombus pulling. [0003] Chinese invention patent CN105476689A discloses a thrombectomy support device, including a thrombus retrieval support, a delivery guide wire, a guide wire, and a marking ring. The bracket is composed of a proximal thrombectomy bracket and a distal protection bracket. The proximal end of the distal protection br...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/22
CPCA61B17/22A61B2017/00778A61B2017/22038A61B2017/22094
Inventor 田立剑苏宏东毕俊超王英平张朝伟
Owner 威海维心医疗设备有限公司
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