DEVICES AND METHODS FOR OCCLUDING ABNORMAL OPENINGS IN A PATIENT'S VASCULATURE

摘要

A medical device is provided in which one or both ends of the device encourage the formation of tissue across substantially the entire area of the respective end that is exposed to the blood flow for reducing the risk of a thrombotic embolism. The medical device includes a tubular structure having at least one expanded volume portion and a tapered transition portion. The tubular structure may be made through the braiding of a number of strands, and a first end feature may be used to secure the proximal strand ends. The proximal strand ends may be secured via the proximal end of the first end feature, such that the tapered transition portion is formed over the circumferential surface of the first end feature, and only a proximal end surface (or a portion of the proximal end surface) of the first end feature is exposed to the path of flowing blood.

主权项

1. A medical device configured to self-expand from a contracted state toward an expanded state when deployed from a delivery device, the medical device comprising:
a tubular structure comprising a plurality of braided strands, each braided strand comprising a proximal strand end and a distal strand end; and a first end feature defining a proximal end and a distal end, wherein the first end feature is configured to receive and secure the proximal strand ends via the proximal end of the first end feature.