Unlock instant, AI-driven research and patent intelligence for your innovation.

Blocking device

A technology of blocking device and sealing disc, applied in medical science, surgery, ligation, etc., can solve the problem of excessive outward opening of the support section.

Active Publication Date: 2020-12-18
LIFETECH SCI (SHENZHEN) CO LTD
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on this, it is necessary to provide a new occlusion device for the technical problem that some of the support segments are excessively expanded outward when the existing umbrella-shaped occlusion device is implanted in the body.

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
  • Blocking device
  • Blocking device
  • Blocking device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1 provides a blocking device 100, please refer to figure 1 and figure 2 , including an elastic sealing disc 110, and an elastic fixing frame 120 connected to the sealing disc 110 and located on one side of the sealing disc 110. The sealing disc 110 and the fixing frame 120 can be connected directly or through at least one connecting piece. The connecting piece can be a flexible or rigid connecting piece, which can be respectively connected to one end of the sealing disc 110 and the fixing frame 120 through sleeve connection or welding. In this embodiment, the sealing disc 110 is directly connected to the fixing frame 120 , specifically, the distal end of the sealing disc 110 extends into the connecting portion 121 located at the proximal end of the fixing frame 120 and is fixed.

[0035] The sealing disc 110 can be made of at least one metal wire with superelasticity and shape memory (such as nickel-titanium alloy wire) or biocompatible polymer wire. After ...

Embodiment 2

[0057] The parts of the blocking device 200 in Embodiment 2 that are the same as the blocking device 100 in Embodiment 1 will not be repeated here. The main difference is that in Embodiment 2, along the circumferential direction C of the fixing frame, at least The two support sections are connected in series by at least one constraint. Specifically, please refer to Figure 9 On the fixed frame 220, only a part of the support segments 223 are respectively provided with a first constraint part 231 or a second constraint part 232, and the first constraint part 231 and the second constraint part 232 matched with it are respectively arranged along the fixed frame. On the two adjacent support segments 223 in the circumferential direction C of 220 , a plurality of constraining members 240 are scattered and spaced apart along the circumferential direction C of the fixing frame 220 , instead of being arranged continuously in Embodiment 1. Such a blocking device 200 realizes the restra...

Embodiment 3

[0060] The parts of the occlusion device 300 in Embodiment 3 that are the same as those in the occlusion device 100 in Embodiment 1 will not be repeated here. The main difference is that in Embodiment 3, the first restriction part and the second restriction part are respectively arranged on the curved section at any position. Further, the first constraining part and the second constraining part are respectively arranged at the end of the curved section, for example, can be punched at the end of the curved segment, or at least one protrusion is provided at the end of the curved segment, as long as the constraining part can be One end or a part of it is fixed on the end of the supporting section.

[0061] Specifically, please refer to Figure 10 The end of the curved section 326 is provided with a ball head (not shown in the figure), which can be realized by heat-melting the end of the curved section 326, or by fixedly connecting a ball head at the end of the curved section 326...

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 relates to a blocking device, comprising a sealing disc, and a fixing frame connected to the sealing disc and located on one side of the sealing disc, the fixing frame includes a connection part connected with the sealing disc, and at least one supporting body, and at least one supporting body is connected to the sealing disc. The connecting portion radiates and extends toward the proximal end, thereby forming a plurality of support segments, at least one first constraint portion is provided on the support segment, and at least one second constraint portion is provided on the fixing frame; the occlusion device also includes at least one constraint member , the restraint is connected with the first restraint part and the second restraint part, so that when the part of the restraint part located between the first restraint part and the second restraint part produces a restraint force, the restraint force is at least on the support section where the first restraint part is located Constrain by moving away from the mount. The blocking device of the present invention can give certain radial constraints to the multiple supporting sections of the umbrella-shaped fixing frame, so as to avoid the risk caused by excessive outward expansion of the supporting sections.

Description

technical field [0001] The invention relates to the technical field of interventional medical devices, in particular to a blocking device for blocking an opening in a human body or an animal body. Background technique [0002] Left atrial appendage occluder, atrial septal defect occluder, aneurysm occluder and other occlusion devices, due to their excellent structure to achieve occlusion and almost no life-threatening complications after implantation in patients, More and more trusted by doctors and patients. Especially for the occluder with an umbrella-shaped structure fixing frame, such as a cantilever type occluding device, the suspended parts of each support rod of the fixing frame, such as the supporting section part, can better Adapt to the parts to be blocked with different structures in the body. [0003] However, it is precisely because there is no constraint between the suspended parts of the various support rods, taking the left atrial appendage blockage as an e...

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 Patents(China)
IPC IPC(8): A61B17/12
CPCA61B17/12031A61B17/12118A61B17/12122A61B17/12154A61B17/12145A61B17/12172
Inventor 李安宁刘建勇
Owner LIFETECH SCI (SHENZHEN) CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com