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Patent foramen ovale plugging device

A technology of foramen ovale and occluder, which is applied in the field of medical devices, can solve the problems of poor resilience and fixation performance of degradable materials, and achieve the effect of strengthening fixation, improving resilience and reducing requirements

Pending Publication Date: 2017-11-28
SHANGHAI HEARTCARE MEDICAL TECH CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The main purpose of the present invention is to provide a patent foramen ovale occluder to solve the above problems, to overcome the problems of metal residues and degradable materials in the current occluder with poor rebound performance and fixation performance

Method used

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Embodiment Construction

[0040] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments in the following description are merely examples, and those skilled in the art can think of other obvious variations.

[0041] In the following embodiments, the proximal end refers to the end close to the operator, and the distal end refers to the end far away from the operator.

[0042] Such as Figure 5 with Image 6 The occluder shown includes a woven mesh, a fixed rivet for the occluder and a central connector. Among them, the woven net is a closed net bucket woven from a single wire-like degradable material. It is formed into a double-disc and waist-shaped structure by heat setting by a mold, which includes a distal end baffle plate 11 and a proximal end baffle plate 12.

[0043] Such as Figure 5 with Image 6 As shown, after the occluder reaches the designated position of the foramen ovale and deforms and e...

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Abstract

The invention discloses a patent foramen ovale plugging device. The patent foramen ovale plugging device is characterized by comprising a woven mesh, a plugging device fixing rivet and a central connecting part. The patent foramen ovale plugging device is made of degradable materials so that the plugging device can be degraded and absorbed in vivo 2-3 years after the surgery, and therefore surgical treatment which is needed after a possible heart disease occurs is not affected; and resilience performance of the plugging device and fixation of the plugging device relative to the interatrial septum are greatly improved through the fixing rivet structure and the central connecting part. By means of the patent foramen ovale plugging device, the requirement on the mechanical property of the materials is reduced to the maximum extent, and therefore most absorbable materials can be applied in the field of plugging devices. The patent foramen ovale plugging device further comprises diaphragm baffles which are beneficial for endothelialization of the plugging device in the initial implantation period.

Description

Technical field [0001] The present invention relates to the technical field of medical devices, in particular to a degradable foramen ovale patent occluder in the field of interventional therapy. Background technique [0002] Studies have shown that there is a close connection between patent foramen ovale and patients with unexplained stroke. Through the patent foramen ovale, the following emboli can enter the left heart system and cause corresponding clinical symptoms: [0003] 1. Thrombosis in deep veins of lower extremities or pelvic veins; [0004] 2. Air emboli caused by diving sickness or decompression sickness; [0005] 3. Fat emboli formed after surgery or trauma. [0006] Moreover, for patients with patent foramen ovale who have experienced thrombotic events, the risk of recurring thrombotic events is still high. [0007] Therefore, for the treatment of the cause, sealing the open foramen ovale in high-risk groups is expected to reduce the incidence of patients. In addition, ...

Claims

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Application Information

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IPC IPC(8): A61B17/00
CPCA61B17/0057A61B2017/00606A61B2017/00597A61B2017/00004
Inventor 周而辰王国辉薛宗玉胡登脉
Owner SHANGHAI HEARTCARE MEDICAL TECH CORP LTD
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