초록 ▼

The present invention is a medical device such as a stent in the form of an expandable mesh with an expandable polymer layer thereon. The mesh is metal or plastic. The polymer may be any of a variety of expandable polymers, which either expand upon hydration, or expand without significant resistance

The present invention is a medical device such as a stent in the form of an expandable mesh with an expandable polymer layer thereon. The mesh is metal or plastic. The polymer may be any of a variety of expandable polymers, which either expand upon hydration, or expand without significant resistance. The invention may be used, for example, as an expandable biliary, vascular, endotracheal, esophageal, or prostatic device.

대표청구항 ▼

A stent for insertion into the interior of a body comprising: an expandable stent body, said expandable stent body having a first configuration having a first diameter and a second configuration having a second diameter wherein said first diameter is less than said second diameter; and, an expandabl

A stent for insertion into the interior of a body comprising: an expandable stent body, said expandable stent body having a first configuration having a first diameter and a second configuration having a second diameter wherein said first diameter is less than said second diameter; and, an expandable polymer layer coupled with said expandable stent body, said expandable polymer layer being hydrophilic, said expandable polymer layer expanding upon hydration to form an expanded polymer layer, said expanded polymer layer coupled with said expandable stent body as one of an internal liner-like layer inside said expandable stent body an external sheath-like layer outside said expandable stent body, an interstitial layer disposed within interstices in said expandable stent body, and any combination thereof.