Patent foramen ovale (pfo) closure device with linearly elongating petals
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机译:带有线性延长花瓣的卵圆孔(pfo)专利封闭装置
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摘要
The present invention provides a device for occluding an anatomical aperture, such as an atrial septal defect (ASD) or a patent foramen ovale (PFO). The occluder (20) includes two sides connected by a central tube. The occluder is formed from a tube (25), which is cut to produce struts (32) in each side. Upon the application of force, the struts deform into loops. The loops may be of various shapes, sizes, and configurations, and, in at least some embodiments, the loops have rounded peripheries. In some embodiments, at least one of the sides includes a tissue scaffold. The occluder further includes a catch system (131) that maintains its deployed state in vivo. When the occluder is deployed in vivo, the two sides are disposed on opposite sides of the septal tissue surrounding the aperture and the catch system is deployed so that the occluder exerts a compressive force on the septal tissue and closes the aperture.
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