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Thrombus extraction device for transcatheter pulmonary artery thrombus extraction system

A pulmonary artery and catheter technology, applied in the field of medical devices, can solve the problem of low thrombus capture rate, achieve the effect of avoiding the loss of thrombus, cutting and grabbing thrombus easily, and avoiding secondary blockage

Pending Publication Date: 2022-08-02
CHENXING (NANTONG) MEDICAL EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the technical problem of low thrombus capture rate caused by the sparse structure of the thrombus retrieval stent in the prior art, and aims to provide a thrombus retriever for a transcatheter pulmonary artery thrombus retrieval system

Method used

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  • Thrombus extraction device for transcatheter pulmonary artery thrombus extraction system
  • Thrombus extraction device for transcatheter pulmonary artery thrombus extraction system
  • Thrombus extraction device for transcatheter pulmonary artery thrombus extraction system

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Embodiment Construction

[0070] In order to make the technical means, creative features, achieved goals and effects of the present invention easy to understand and understand, the present invention will be further described below with reference to specific drawings.

[0071] refer to Figure 1 to Figure 20 , a thrombectomy device for a transcatheter pulmonary artery thrombectomy system, comprising a thrombectomy stent 100 , a guide head 200 , a push rod 300 , a pulling tube 400 and a developing ring 500 .

[0072] refer to Figure 1 to Figure 4 , Figure 9 and Figure 10 , the thrombectomy stent 100 is made of wire harness and has mesh holes, and the mesh holes are a gradual structure with a denser at the distal end and a sparser at the proximal end.

[0073] In some embodiments, at least the proximal end and the distal end of the thrombectomy stent 100 are in a folded configuration, resulting in a folded proximal wire harness at the proximal end and a folded distal wire harness at the distal end. ...

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Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a thrombectomy device for a transcatheter pulmonary artery thrombectomy system. A thrombectomy device for a transcatheter pulmonary artery thrombectomy system comprises a thrombectomy support. The guide head is positioned at the far end of the thrombectomy stent; the thrombectomy stent is made of a wire harness and provided with meshes, and the meshes are of a gradually-changing structure with the far end being dense and the near end being sparse. The far end of the push rod is fixedly connected to the near end of the thrombectomy stent, and the push rod wraps the near-end wire harness of the thrombectomy stent; the pull tube is located in the thrombectomy support, the near end of the pull tube penetrates through the thrombectomy support and extends to the operation end of the thrombectomy system, and the far end of the pull tube is fixedly connected to the guide head; when the pull tube axially moves, the thrombus extraction support and the guide head are driven. The parts are simple and convenient to connect and fix, the deformation problem of the thrombus extraction stent is greatly reduced, the thrombus extraction stent has a good expansion state, thrombus can be grabbed to the maximum extent, the thrombus can be easily gathered, contraction deformation is buffered when the thrombus extraction stent is withdrawn, and loss of the thrombus is avoided.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a thrombectomy device for a transcatheter pulmonary artery thrombectomy system. Background technique [0002] Pulmonary embolism (PE) refers to the pulmonary circulation disorder caused by shed thrombus or other substances blocking the pulmonary artery or its branches. It has the characteristics of high morbidity, high mortality, high recurrence and high missed diagnosis. PE is also the third leading cause of cardiovascular death after coronary heart disease and stroke, with a 30-day mortality rate of 30% if left untreated, with 11% of patients dying within the first hour of admission. More than 10 million cases are diagnosed each year globally, with 1 million in the United States and more than 700,000 in France, Italy, Germany, Spain, Sweden and the United Kingdom. According to domestic statistics, among 100,000 adults, there are about 110 cases of pulmonary...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/221
CPCA61B17/221A61B2017/2212
Inventor 王焱庄晖姜程文高泽明梁玉晨
Owner CHENXING (NANTONG) MEDICAL EQUIP CO LTD
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