| abstract |
(57) [Summary]nThe present invention relates to devices such as cannulas or needles, which are used to insert expandable structures, such as medical balloons, into internal regions of the human or animal body, and to their use. About the method. In various embodiments, the insertion devices described herein facilitate insertion and removal of expandable structures and damage such expandable structures during their insertion, inflation, and removal. It can deflect outward at the tip to reduce the risk of doing so. In other embodiments, the insertion devices described herein directionally guide and / or prevent expansion of the expandable structure within an internal region of an animal or human body, thereby providing a fracture. Optimally positioned cavities may be created for repair, augmentation, and / or treatment of damaged and / or diseased bone. |