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Parachute design biodegradable occluder

An occluder and parachute technology, applied in medical science, surgery, ligation, etc., can solve problems such as wear and conduction block, and achieve obvious benefits, excellent occlusion treatment, and small friction and wear.

Pending Publication Date: 2020-06-19
SHANGHAI SHAPE MEMORY ALLOY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the occlusion of ventricular septal defect, there will be a certain probability of conduction block; after the occluder is implanted in the human body, due to the relatively hard material, there will be a certain degree of friction and wear on the defect tissue and surrounding tissues

Method used

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  • Parachute design biodegradable occluder
  • Parachute design biodegradable occluder
  • Parachute design biodegradable occluder

Examples

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Embodiment Construction

[0024] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0025] A biodegradable occluder with a parachute design provided by the present invention is made of a high molecular polymer material, which has degradable properties in biological tissues, and finally decomposes into a harmless human body, which can be absorbed by the human body or can be absorbed by the human body. Substances metabolized by the human body.

[0026] to combine figure 1 , the present invention includes an oc...

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Abstract

The invention provides a parachute design biodegradable occluder. The end close to a human body is defined as a near end, and the end away from the human body is defined as a far end; the occluder ischaracterized in that the occluder includes an occluder support internally arranged with a flow-choking membrane, and a forming ring with changeable states; and the occluder support, the flow-chokingmembrane and the forming ring are made from macromolecule polymer materials having biodegradable properties in biological tissue. The occluder is made from the biodegradable polymer materials, so thatthe occluder can be decomposed or absorbed by human tissue after a period of time in the human tissue, defect parts can be finally formed by the self tissue of the human body, therefore, occlusion without foreign matters can be realized, and the benefits are particularly obvious for children.

Description

technical field [0001] The invention relates to a biodegradable occluder. Background technique [0002] Common congenital heart diseases include atrial septal defect, ventricular septal defect, patent ductus arteriosus, and patent foramen ovale. In the past, surgical thoracotomy was the only effective way to treat this type of congenital heart disease. The development of interventional medical devices and interventional surgery technology has made it possible for such patients who previously required thoracotomy to be cured through minimally invasive interventional therapy. Conventional minimally invasive interventional surgery uses a heart occluder for occlusion treatment, while the mainstream occluder currently on the market is made of nickel-titanium alloy material, which uses the superelastic properties of nickel-titanium alloy material to achieve occlusion treatment at the defect site . [0003] At the same time, there will be a certain rate of complications when usin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/00A61B17/12
CPCA61B17/0057A61B17/12109A61B17/12145A61B17/1215A61B2017/00575A61B2017/00606A61B2017/00623A61B2017/00831A61B2017/1205
Inventor 詹航敏陈娟李博王帆
Owner SHANGHAI SHAPE MEMORY ALLOY
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