A closure device for preventing thrombosis of patent oval foramen and a preparation method

A technology of foramen ovale and occlusion, which is applied in the field of preventing thrombus formation of patent foramen ovale occluder and its preparation, can solve problems affecting human health, human allergies, reducing the scope of application of occluders, etc. Effects of health, expanding the scope of application, and ensuring quality

Inactive Publication Date: 2019-01-15
WUHAN VICKOR MEDICAL TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] It can be seen that the occluder in the prior art has the defect that the nickel alloy material is in full contact with the body

Method used

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  • A closure device for preventing thrombosis of patent oval foramen and a preparation method
  • A closure device for preventing thrombosis of patent oval foramen and a preparation method
  • A closure device for preventing thrombosis of patent oval foramen and a preparation method

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Embodiment Construction

[0031] The method of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments of the present invention.

[0032] like figure 1 and figure 2 As shown, the patent foramen ovale occluder for preventing thrombus generation includes: a left disc 1 and a right disc 2 respectively arranged in the left ventricle and the right ventricle, or the left atrium or the right atrium, through the left disc 1 and the right disc 2 The occluder is stuck in the ventricular septum or atrial septum. The middle parts of the left disk 1 and the right disk 2 are fixedly connected together by the waist 3, which ensures a more stable occluder and a longer use time at the patient's heart. In order to facilitate the use of interventional surgery, especially through the femoral artery through the controllable sheath to enter the patient's heart, the left disc 1, right disc 2 and waist 3 are all made of grid lines 4 made of nickel-titani...

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Abstract

A closure device for preventing thrombosis of patent oval foramen is disclosed. The left disk, a right disk and a waist are woven with grid lines made of nickel-titanium alloy, and the surface of gridlines is coated with Parylene coating by vacuum vapor deposition process. The invention also discloses a preparation method of the closure device, which comprises the following steps: selecting a nickel-titanium alloy wire with uniform thickness as a grid line; coating the grid lines with the Parylene coatings by vacuum vapor deposition; weaving at least two group of grid lines to form a networkmanagement; weaving an expansion line in a grid between gridlines of a network management; thermally shaping the mesh tube into a left disk, a right disk and a waist through a thermally-shaped mold. As that closure device for prevent thrombosis is generated, the nickel element material of the closure device is completely isolate from the body fluid of the human body, the nickel element is not allowed to enter the human body, the health of the human body is ensured, and the application range of the closure device is enlarged.

Description

technical field [0001] The invention relates to the technical field of structural design and preparation method design of an occluder used in interventional surgery, in particular to a patent foramen ovale occluder for preventing thrombosis and a preparation method thereof. Background technique [0002] With the continuous development of interventional materials and devices and interventional cardiology, transcatheter (controllable sheath) interventional occluder minimally invasive treatment of atrial septal defect (VSD), ventricular septal defect (ASD), patent ductus arteriosus (PDA) and Congenital heart disease such as patent foramen ovale (PFO) has become an important method. Endovascular occlusion with interventional methods is also a widely accepted treatment. [0003] In the prior art, in order to meet the need for a controllable sheath to intervene in the heart and introduce the occluder into the heart, there are strict requirements on the material selection of the o...

Claims

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Application Information

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IPC IPC(8): A61B17/00
CPCA61B17/0057A61B2017/00575
Inventor 陈松王雪丽陈澍张兴董念国田军尚小珂张长东丁珊珊卢蓉
Owner WUHAN VICKOR MEDICAL TECH CO LTD
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