Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A thrombectomy bracket with a gradually changing mesh

A gradient mesh, mesh technology, applied in the field of mechanical thrombectomy stents, can solve the problems of secondary embolism, difficult to embed thrombus, poor compliance and adherence, etc., achieve significant radial support force, prevent secondary embolism, The effect of good adherence

Inactive Publication Date: 2019-01-15
HANGZHOU EXCEED MEDICAL TECH CO LTD
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Several mechanical thrombectomy devices commonly used in the market still have the following problems: 1. Insufficient radial support, difficult to embed thrombus, and unable to effectively capture thrombus; 2. Poor flexibility and adherence, difficult or impossible to pass through complex lesions Blood vessels, and the effect of thrombus removal is not ideal; 3. The effect of distal protection is not ideal, which can easily lead to secondary embolism when small thrombus falls off; 4. Small thrombus is easy to escape to form vascular embolism

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A thrombectomy bracket with a gradually changing mesh
  • A thrombectomy bracket with a gradually changing mesh
  • A thrombectomy bracket with a gradually changing mesh

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1, with reference to attached Figure 1-2 , Figure 6A , 6B , 6C, 6D.

[0027] The bolt-removing support provided by the present invention comprises a main body mesh cylinder 100, the proximal end of the main body mesh barrel has a traction part 1, and the size of the grid 11 at the far end of the main body mesh barrel is smaller than the size of the mesh 12 near the proximal end of the main body mesh barrel and The grid is denser, preferably, from the traction part to the distal end, the grid gradually changes from large to small. In this way, not only has significant radial support force, but also the radial force has a tendency to gradually increase from the proximal end to the distal end, with the effects of conical expansion, reverse conical protection, and carrying, and better wall-attachment performance, providing long-distance end protection to help prevent thrombus from dislodging and escaping, and has excellent compliance throughout.

[0028] Th...

Embodiment 2

[0034] Embodiment 2, with reference to attached Figure 3-5 , Figure 6A , 6B , 6C, 6D, 6E.

[0035] The bolt-removing support provided by the present invention comprises a main body mesh cylinder 100, the proximal end of the main body mesh barrel has a traction part 1, and the size of the grid 11 at the far end of the main body mesh barrel is smaller than the size of the mesh 12 near the proximal end of the main body mesh barrel and The grid is denser, preferably, from the traction part to the distal end, the grid gradually changes from large to small. In this way, not only has significant radial support force, but also the radial force has a tendency to gradually increase from the proximal end to the distal end, with the effects of conical expansion, reverse conical protection, and carrying, and better wall-attachment performance, providing long-distance end protection to help prevent thrombus from dislodging and escaping, and has excellent compliance throughout.

[0036...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a thrombectomy bracket with a gradually changing mesh, comprising a main body mesh cylinder, wherein the proximal end of the main body mesh cylinder is provided with a tractionpart. The bracket is characterized in that the mesh size of the distal end of the main body mesh cylinder is smaller than the mesh size of the proximal end of the main body mesh cylinder, and the mesh is more compact. The bracket has remarkable radial support force, excellent compliance, good adherence to the wall and distal protection capability.

Description

technical field [0001] The invention belongs to the field of medical devices, and in particular relates to a mechanical thrombectomy support for the treatment of acute ischemic stroke. Background technique [0002] Stroke is divided into hemorrhagic stroke (also known as cerebral hemorrhage) and ischemic stroke (also known as cerebral infarction), of which ischemic stroke accounts for 80%. [0003] At present, intravenous thrombolysis with tPA is an effective method for the treatment of acute ischemic stroke, but the treatment time window is narrow, only 4.5 hours. As a result, patients who exceed the time window cannot be treated in time. At present, the rate of thrombolytic therapy with tPA drugs in my country is only 1.6%. In addition, for stroke caused by large vessel occlusion and cardioembolic embolism, the recanalization rate of intravenous thrombolysis is low, and the therapeutic effect is not good. If the recanalization rate of the internal carotid artery occlusio...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/22
CPCA61B17/22A61B2017/2212A61B2017/2217
Inventor 向建平周启蒙荆洪娟冷晓畅
Owner HANGZHOU EXCEED MEDICAL TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com