Membrane-covered arterial aneurysm intratumoral blocking device

A technology of occlusion device and aneurysm, which is applied in the field of medical devices, can solve the problems of easy puncture of the aneurysm roof and large space occupation of the occlusion device, and achieve the effects of small space occupation, reduction of arterial thrombosis, and reasonable tension

Pending Publication Date: 2022-03-04
JIANGSU NOWYON MEDICAL CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, and provide a covered aneurysm occlusion device, which aims to solve the problem that the distal end of the occlusion device in the prior art is easy to pierce the aneurysm dome and occupies too much space. technical problem

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
  • Membrane-covered arterial aneurysm intratumoral blocking device
  • Membrane-covered arterial aneurysm intratumoral blocking device
  • Membrane-covered arterial aneurysm intratumoral blocking device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] refer to figure 1 , the embodiment of the present invention provides a film-covered aneurysm intravascular occlusion device, which includes a marking part 1 and an elastic mesh body 2 connected to the marking part 1 when the film is not covered. The elastic mesh body 2 includes a delivery state and an unfolded state. The elastic mesh body 2 fits the tumor cavity in the expanded state for sealing. In the expanded state, the radial diameter of the elastic mesh body 2 first increases and then decreases from the proximal end to the distal end, and the elastic mesh body 2 extends from the most distal end to the proximal end, and the radial diameter gradually decreases.

[0048] Specifically, the marking part 1 is a developing object, which is used to better confirm the release position of the blocking device. The proximal end of the elastic mesh body 2 is fixed on the distal end of the marking part 1 to prevent the proximal end from hanging the thrombus and puncturing the ...

Embodiment 2

[0054] On the basis of the first embodiment, in order to increase the recovery force of the occlusion device or avoid the risk of weak and fragile tumor tops, the surface of the occlusion device is coated with an elastic film 3 . The elastic film 3 is divided into an integral film and a partial film. The elastic film 3 can cover the inner surface or the outer surface or the inner and outer surfaces of the elastic mesh body 2 .

[0055] The elastic membrane 3 is a partial coating, which can be coated only on the distal end of the elastic mesh body 2 . The elastic membrane 3 has various structures in the case of partial coating, and the partial coating will be described below through specific structures.

[0056] The first type of covering structure is covering only at the distal end. Such as Figure 17 As shown, the elastic membrane 3 includes a first extension portion 31 of the elastic mesh body 2 in the unfolded state that extends from the distal end to the proximal end. ...

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 is suitable for the technical field of medical apparatuses and instruments, and discloses a covered arterial aneurysm intratumoral occlusion device. The invention provides a covered arterial aneurysm intratumoral occlusion device. The covered arterial aneurysm intratumoral occlusion device comprises a marking part and an elastic reticular body connected with the marking part, the elastic net-shaped body has a conveying state and an unfolding state; the elastic net-shaped body is attached to a tumor cavity to block the tumor cavity in an unfolded state. The radial diameter of the elastic net-shaped body in the unfolded state is increased and then decreased from the near end to the far end, the elastic net-shaped body extends from the farthest end to the near end, and the radial diameter of the elastic net-shaped body is gradually decreased. The surface of the elastic net-shaped body is covered with an elastic film; and the maximum diameter of the elastic reticular body in an unfolded state is greater than the diameter of the aneurysm to be treated. The elastic net-shaped body has the advantage of being small in occupied space, the restoring force of the support can be increased through the elastic film, and the risk that the tumor top is weak and prone to being broken is reduced.

Description

【Technical field】 [0001] The invention relates to the technical field of medical devices, in particular to a membrane-covered aneurysm intravascular occlusion device. 【Background technique】 [0002] Intracranial aneurysm refers to the localized swelling and expansion of the vessel wall of the artery due to the effect of acquired pathological factors or congenital malformation. The attack rate of intracranial aneurysms is extremely high, about 5%. The fatality rate of rupture and bleeding for the first time is 8% to 45%, the fatality rate is higher than 60% within one year, and the fatality rate is over 85% within 2 years. Therefore, the international community generally emphasizes the important clinical significance of early diagnosis and treatment of intracranial aneurysms to improve the survival rate and quality of life of patients. [0003] At present, there are two standardized treatment methods for cerebral aneurysm rupture and bleeding, which are surgical clipping an...

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): A61B17/12A61F2/07A61F2/90
CPCA61B17/12113A61B17/12168A61F2/90A61F2/06A61F2250/0067A61F2210/0076
Inventor 刘振全孙冰贾晶其他发明人请求不公开姓名
Owner JIANGSU NOWYON MEDICAL CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap