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

Blood-vessel embolectomy device with helical structure and thrombus treating apparatus with the same

A technology of helical structure and therapeutic apparatus, applied in balloon catheter, medical science, surgery and other directions, to achieve the effect of improving clamping force, good flexibility and good foldability

Active Publication Date: 2016-06-15
ZHUHAI TON-BRIDGE MEDICAL TECH CO LTD
View PDF18 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This device can also be used in other adaptive parts of human blood vessels

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
  • Blood-vessel embolectomy device with helical structure and thrombus treating apparatus with the same
  • Blood-vessel embolectomy device with helical structure and thrombus treating apparatus with the same
  • Blood-vessel embolectomy device with helical structure and thrombus treating apparatus with the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Embodiment one, such as Figure 3 to Figure 5 As shown: the unit grid 170 of the thrombus retriever 100 increases one by one in the longitudinal direction, and the helical starting point and ending point of the longitudinal gap 160 rotates one revolution in the axial direction. This makes it possible to fold the thrombus retriever 100 at any point on the circumference, that is to say, the thrombus retriever 100 can fold and clamp the thrombus around the entire circumference, which is non-linear, and the clamping force on the thrombus will be greatly improved. .

Embodiment 2

[0053] Embodiment two, such as Image 6 as well as Figure 7 As shown: the unit grid 170 of the thrombus retriever 100 increases every two in the longitudinal direction, and the helical starting point and ending point of the longitudinal gap 160 rotates half a circle in the axial direction. The advantage of this structure is that it not only ensures that the thrombus retriever 100 is folded and clamped on the semi-circumferential helix, but also enables the thrombus retriever 100 to maintain a certain degree of flexibility. collapse etc.

Embodiment 3

[0054] Embodiment three, such as Figure 8 as well as Figure 9 As shown: the unit grid 170 of the thrombus retriever 100 increases every three in the longitudinal direction, and the helical starting point and ending point of the longitudinal gap 160 rotates a quarter of a circle in the axial direction. Such a structure enables the thrombus retriever 100 to be folded limitedly on the axial helix, and has a certain radial support force while ensuring the clamping of the thrombus.

[0055] The proximal end of the thrombus retriever 100 is configured as a tapered structure 130, which gradually expands from the proximal end to the distal end, and the taper is 30° to 60°. The advantage of this design is that it greatly reduces push resistance when the retriever is retracted into the guiding catheter.

[0056] The thrombus retriever 100 has an oblong shape or an oblong shape in a self-expanding state, its length ranges from 5 mm to 60 mm, and its diameter ranges from 2 mm to 6 mm ...

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

PropertyMeasurementUnit
Lengthaaaaaaaaaa
Diameteraaaaaaaaaa
Taperaaaaaaaaaa
Login to View More

Abstract

The invention relates to a blood-vessel embolectomy device with a helical structure and a thrombus treating apparatus with the same. The blood-vessel embolectomy device comprises a developing loop, developing rings and an embolectomy device body arranged between the developing loop and the developing rings. The embolectomy device body is of a web-tubular or cage-shaped structure composed of a plurality of connected unit grids; the web-shaped or cage-shaped structure is in an opening type, and a longitudinal gap is formed in the side face of the embolectomy device body, and extends in a helical mode along the outer surface of the web-shaped or cage-shaped structure. The thrombus treating apparatus comprises the blood-vessel embolectomy device with the helical structure, a protecting sheath tube, a conveying wire, a micro guide tube, a guiding guide tube and a rotating bleeding stopping valve. The micro guide tube is pushed to a thrombus embolism in the guiding guide tube along the guiding guide tube, the protecting sheath tube is communicated with the micro guide tube through the rotating bleeding stopping valve, and the embolectomy device body is placed in the protecting sheath tube and pushed into the micro guide tube through the conveying wire. According to the blood-vessel embolectomy device with the helical structure and the thrombus treating apparatus, flexibility is good, the embolectomy device body can pass through the bent blood vessel or reach the blood vessel with the thin far end, and harm to the blood vessel wall is reduced to be minimum.

Description

technical field [0001] The present invention relates to a blood vessel thrombus removal device with a helical structure and a thrombus treatment instrument using the device, in particular to a medical device for intervening in blood vessels, which is used to treat acute ischemic stroke by It is a treatment method that mechanically removes thrombus blocked in blood vessels to restore blood flow immediately, which is especially suitable for thrombus removal of intracranial blood vessels. Background technique [0002] Once ischemic stroke occurs, blood vessels must be recanalized within the shortest possible time (effective time window). At present, there are two main treatment methods for intracranial thrombosis: drug thrombolysis and mechanical thrombectomy. [0003] Drug thrombolysis is through intravenous injection of rt-PA (tissue plasminogen activator) or urokinase to dissolve thrombus, and can also be treated with intra-arterial exposure to thrombolysis, anti-platelet a...

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
IPC IPC(8): A61B17/221A61M25/10
CPCA61B17/221A61B2017/22044A61B2017/2215A61M2025/1052
Inventor 赵中陈志刚徐兵科施磊
Owner ZHUHAI TON-BRIDGE 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