Patent ID: 8834361
Filing Date: 2014-09-16
Classification: A61B

Abstract:
1. A medical device for forming a pathway from an external orifice to a bodily opening defined by tissue of an internal bodily lumen, the medical device comprising: a flexible sheath having a longitudinal length suitable for forming the pathway, the flexible sheath having a distal portion that is collapsible; and an expandable frame connected to the distal portion of the sheath, the expandable frame operable between a collapsed configuration and an expanded configuration, the expandable frame expanding radially from the collapsed configuration to the expanded configuration; the expandable frame including a first cage having a proximal segment and a distal segment connected together by intermediate hinges, the proximal segment connected to the flexible sheath, the distal segment projecting distally beyond the distal portion of the flexible sheath; the distal segment rotating radially outwardly relative to the proximal segment about the intermediate hinges when the expandable frame expands radially from the collapsed configuration to the expanded configuration.