Patent ductus arteriosus plugging device

A patent ductus arteriosus and occluder technology, applied in medical science, surgery, etc., can solve problems such as the occluder falling off, and achieve the effect of reasonable structure and wide application range

Inactive Publication Date: 2014-08-27
SHANDONG PROVINCIAL HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The occluder with the above struct...

Method used

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  • Patent ductus arteriosus plugging device
  • Patent ductus arteriosus plugging device
  • Patent ductus arteriosus plugging device

Examples

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Embodiment Construction

[0032] Such as Figure 1 to Figure 7 As shown, the present invention relates to an occluder for a patent ductus arteriosus, which is composed of a metal filament, an impermeable membrane and a fixing element.

[0033] For existing defects, the subject of protection of the present invention is as follows:

[0034] What was developed was a medical device for occluding the patent ductus arteriosus. The element makes the occlusion process full of flexibility through the minimum degree of damage and minimal intervention. The structure of the element is more in line with the anatomical and physiological structure of the valve, and the trauma is minimized, so that the element can completely and accurately reach the occlusion site, blockage.

[0035] The basic principle is to compress the occluder 1 and introduce it through the catheter into the unclosed section of the ductus arteriosus 2 that needs to be occluded, and then lead the occluder out of the catheter. Since the occluder h...

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Abstract

The invention discloses a patent ductus arteriosus plugging device. A fabric body is sequentially provided with a right disc, a first reducing neck, a first cylinder, a second reducing neck, a second cylinder and a left disc from a right heat system to a left heart system; the two cylinders are in hollow cylinder shapes with the diameter from 4 mm to 20 mm; the diameter of the two reducing necks is obviously smaller than that of the two cylinders; the thickness of the two reducing necks is smaller than or equal to 1 mm; the right disc is in a round shape with the external edge to be 1 mm larger than the first cylinder; the left disc is in a round shape with the external edge to be 3.5 mm larger than the second cylinder; closing positions of the fabric body are arranged at centers of the two discs; a threaded column is fixed at the closing position on the right disc; two expanding thin films are arranged in an empty chamber inside the second cylinder. According to the patent ductus arteriosus plugging device, diameter of the reducing neck portion and the cylinder portion has significant difference, micro-deformation in the length direction can be achieved, and the plugging device can be firmly fixed inside an arterial duct to form into a riveting force.

Description

technical field [0001] The invention relates to the field of occluders used in occlusion operations for patients with patent ductus arteriosus, especially a patent ductus arteriosus occluder suitable for long-tube PDAs. Background technique [0002] Patent ductus arteriosus is one of the common types of congenital heart disease in children, accounting for 15% of the total number of congenital heart disease. The passive opening of the ductus arteriosus in the fetus is an important channel for blood circulation. After birth, functional closure occurs about 15 hours after birth, and 80% of them are closed anatomically at 3 months after birth. By one year, it should be completely closed anatomically. If it continues to open and produces pathological and physiological changes, it is called patent ductus arteriosus. [0003] Classified by type, including cast: the length of the catheter is mostly about 1 cm, and the diameter varies in thickness; funnel-shaped: similar in length ...

Claims

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Application Information

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IPC IPC(8): A61B17/12A61B17/00
CPCA61B17/0057A61B2017/00628A61B2017/00632
Inventor 王玉林
Owner SHANDONG PROVINCIAL HOSPITAL
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