Scaffold loading and delivery systems
First Claim
1. A delivery system comprising(a) an elongate inner member,(b) a loading member that comprises a loading lumen having a loading lumen axis and a plurality of longitudinal pathways adjacent to the loading lumen, said loading lumen comprising a tapered lumen region having a proximal tapered lumen end with a first diameter and a distal tapered lumen end with a second diameter that is smaller than the first diameter,(c) a self-expanding scaffold disposed around the elongate inner member within the loading lumen, said scaffold comprising a scaffold wall and having a scaffold lumen, a proximal scaffold end, a distal scaffold end, an inner luminal surface, an outer abluminal surface,(d) a plurality of loading pins configured for engagement with the scaffold wall and for longitudinal movement along the longitudinal pathways, such that longitudinal movement of the loading pins within the longitudinal pathways is accompanied by longitudinal movement of the scaffold, and(e) a delivery sheath comprising a delivery lumen in communication with the loading lumen, said delivery lumen having a delivery lumen diameter.
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Accused Products
Abstract
This disclosure describes, inter alia, materials, devices, kits and methods that may be used for loading scaffolds into delivery devices and delivery of scaffolds into the body of a patient, including delivery of scaffolds to the sinuses for the treatment of chronic sinusitis, among other purposes.
376 Citations
8 Claims
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1. A delivery system comprising
(a) an elongate inner member, (b) a loading member that comprises a loading lumen having a loading lumen axis and a plurality of longitudinal pathways adjacent to the loading lumen, said loading lumen comprising a tapered lumen region having a proximal tapered lumen end with a first diameter and a distal tapered lumen end with a second diameter that is smaller than the first diameter, (c) a self-expanding scaffold disposed around the elongate inner member within the loading lumen, said scaffold comprising a scaffold wall and having a scaffold lumen, a proximal scaffold end, a distal scaffold end, an inner luminal surface, an outer abluminal surface, (d) a plurality of loading pins configured for engagement with the scaffold wall and for longitudinal movement along the longitudinal pathways, such that longitudinal movement of the loading pins within the longitudinal pathways is accompanied by longitudinal movement of the scaffold, and (e) a delivery sheath comprising a delivery lumen in communication with the loading lumen, said delivery lumen having a delivery lumen diameter.
Specification