Stent fold clip
AssigneeAdvanced Cardiovascular Systems, Inc.
InventorTimothy R. Owens
Life of this patent
Estimating the term…
Abstract
An apparatus for secure stent delivery where the stent is delivered by a catheter system including a foldable delivery balloon. The apparatus, embodied in a stent with tethering clips, enables the stent and delivery balloon to be mechanically interlocked during delivery of the stent. The tethering clips are coupled to a strut included in the stent and the clips are positionable in a releasable gripping relationship with a fold in the balloon. When the balloon is inflated, the tethering clips are pushed outward and the stent and balloon are no longer interlocked, allowing the stent to be expandable radially by the inflating balloon.
Claims44
A stent for implanting in a body lumen and deliverable on a delivery catheter having an inflatable balloon portion for expanding the stent, comprising:
- a plurality of adjacent struts defining a tubular, radially expandable body which is adapted to expand from a collapsed position to an expanded position in the body lumen;
- and
- a tethering clip attached to a strut and positionable in a releasable gripping relationship within a fold created when the balloon portion of the delivery catheter is folded in a collapsed position, the clip being adapted to releasably grip the balloon portion to hold the stent on the balloon portion.
A stent for implanting in a body lumen and deliverable on a delivery catheter having an inflatable balloon portion for expanding the stent, comprising:
- a plurality of adjacent struts defining a tubular, radially expandable body which is adapted to expand from a collapsed position to an expanded position in the body lumen;
- and
- a plurality of tethering clips attached to the struts and positionable in a releasable gripping relationship within a fold created on the balloon portion of the delivery catheter when the balloon portion is folded in a collapsed position to releasably grip the balloon fold to hold the stent on the balloon portion.
A method of securing an intra-luminal stent onto a stent delivery catheter having an inflatable balloon portion, including:
- selecting a stent having a tethering clip projecting therefrom;
- folding an inflatable balloon on a stent delivery catheter to form at least one fold therein;
- and
- positioning the clip in the balloon fold to releasably hold the stent in position on the folded balloon.
A stent for implanting in a body lumen and deliverable on a delivery catheter having an inflatable balloon portion for expanding the stent, comprising:
- a plurality of adjacent struts defining a tubular, radially expandable body which is adapted to expand from a collapsed position to an expanded position in the body lumen;
- and
- a tethering clip attached to a strut and positionable in a releasable gripping relationship within a fold formed on the balloon portion of the delivery catheter when placed in the collapsed position to releasably grip the balloon to hold the stent on the balloon portion, the clip having one end connected to a strut and a free end forming a stop to create a frictional resistance from withdrawal of the stent from the balloon portion.
A stent for implanting in a body lumen and deliverable on a delivery catheter having an inflatable balloon portion for expanding the stent, comprising:
- a plurality of adjacent struts defining a tubular, radially expandable body which is adapted to expand from a collapsed position to an expanded position in the body lumen;
- a row of tethering clips attached to the struts in a substantially straight line arrangement and positionable in a releasable gripping relationship within a fold formed on the balloon portion of the delivery catheter when placed in the collapsed position to releasably grip the balloon to hold the stent on the balloon portion;
- and
- a second row of adjacent tethering clips attached to the struts and positionable in a releaseable gripping relationship with a fold formed on the balloon portion of the delivery catheter.
A stent for implanting in a body lumen and deliverable on a delivery catheter having an inflatable balloon portion for expanding the stent, comprising:
- a plurality of adjacent struts defining a tubular, radially expandable body which is adapted to expand from a collapsed position to an expanded position in the body lumen;
- and
- a tethering clip attached to a strut and positionable in a releasable gripping relationship within a fold formed on the balloon portion of the delivery catheter when placed in the collapsed position to releasably grip the balloon to hold the struts on the balloon portion, the tethering clip being made from material which is different from the material making up the struts.
A stent for implanting in a body lumen and deliverable on a delivery catheter having an inflatable balloon portion for expanding the stent, comprising:
- a plurality of adjacent struts defining a tubular, radially expandable body which is adapted to expand from a collapsed position to an expanded position in the body lumen;
- and
- a plurality of tethering clips attached to the struts and positionable in a releasable gripping relationship within a fold formed on the balloon portion of the delivery catheter when placed in the collapsed position to releasably grip the balloon to hold the struts on the balloon portion, the tethering clips being made from material which is different from the material making up the struts.
Dependencies are inferred from the claim text.