| abstract |
A method according to one embodiment for maintaining patency of an opening inside the human body comprises introducing a radially self-expanding hollow stent into the opening while the stent is retained in a radially compressed state, wherein the stent has enlarged ends and a reduced intermediate portion. The stent is introduced into the opening such that its intermediate portion extends through the opening and the enlarged ends are positioned outside of the opening. Once deployed, at least the end portions of the stent expand on opposing faces of the opening to resist dislodgement of the stent from the opening. The stent is preferably biodegradable, such that it is eliminated from the surgical site over a period of weeks to months, by which time the patency of the opening is more assured. The method can be used in combination with, for example, an endoscopic surgical method such as endoscopic third ventriculostomy for treating hydrocephalus of a brain. |