Patent ID: 8603185
Filing Date: 2013-12-10
Classification: A61F,A61M

Abstract:
1. A non-expandable stent comprising: a generally tubular body having a lumen defined therethrough, the body comprising: a proximal portion comprising a curved portion, the curved portion comprising a loop configured for placement proximal to a sphincter to prevent ingress of the curved portion through the sphincter; and a substantially straight distal portion comprising a first retaining member extending outward from a proximal end of the distal portion, the first retaining member configured for placement distal to the sphincter and configured to engage the sphincter such that the curved portion and the first retaining member engage the sphincter to hold the stent in position, wherein the distal portion, distal to the first retaining member is free of retaining members and the distal portion distal to the first retaining member has a first length that is greater than a second length, the second length extending longitudinally between the curved portion and the first retaining member.