Covered stent and medical device

Abstract

A covered stent and a medical device. The medical device includes a covered stent including a main stent and a first branch stent. A first interface, a second interface and a third interface are provided on a side surface of the main stent and spaced along an axial direction of the main stent, the first interface receives the first branch stent, the second interface receives a second branch stent, and/or the third interface receives a third branch stent. The covered stent further includes a restraining assembly arranged on the main stent, and the restraining assembly applies to the main stent a tensile force toward an inner cavity of the main stent. At least a portion of the main stent that is provided with the second interface and the third interface is recessed toward the inner cavity of the main stent.

Dependencies are inferred from the claim text.