Branch stent

Abstract

A branch stent, including a stent body and a skirt structure disposed on the stent body. The stent body includes a main body stent and a main body covering film disposed on the main body stent. The skirt structure includes a sealing stent segment connected to the stent body and a fixing stent segment connected to the sealing stent segment, and the skirt structure is provided with a developing structure. For the branch stent, a branch opening of a vascular stent is sealed by the sealing stent segment to prevent endoleaks. The fixing stent segment can be folded, and is automatically folded after being released from a delivery sheath, to prevent the branch stent from moving. Also, the skirt structure is provided with the developing structure for displaying the state of the skirt structure after being released from the delivery sheath, making it convenient for an operator to observe.

Dependencies are inferred from the claim text.