Method and Apparatus for Compressing/Loading Stent-Valves
AssigneeSymetis SA
InventorsLuc Mantanus, Fabien Lombardi, Pierre Simonin, Youssef Biadillah, Jean-Luc Hefti, Stephane Delaloye
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Abstract
Apparatus (40) for compressing a transcatheter cardiac stent-valve (10) comprises: a first compressor stage (100) including a hollow channel (42) with a tapered interior surface configured for compressing a stent-valve in response to longitudinal advancement of the stent-valve within the channel; and a second compressor stage (102) comprising a crimper for compressing a portion of the stent-valve without longitudinal advancement.
Claims20
A loading system for use in compressing and/or loading a stent-valve for a delivery catheter, the loading system comprising:
- a distal sheath configured for compressing and covering a distal portion of the stent-valve;
- a proximal sheath configured for compressing and covering a proximal portion of the stent-valve;
- a plurality of segments configured to be disposed over the proximal sheath, the plurality of segments alone define a tubular shape that has a form fit over the proximal sheath;
- and
- a retainer configured to be disposed over and retain the plurality of segments in the tubular shape.
A loading system for use in compressing and/or loading a stent-valve for a delivery catheter, the loading system comprising:
- a distal sheath configured for compressing and covering a distal portion of the stent-valve;
- a proximal sheath configured for compressing and covering a proximal portion of the stent-valve;
- only two transparent segments configured to be disposed over the proximal sheath, the two segments alone define a tubular shape that has a form fit over the proximal sheath;
- and
- a retainer configured to be disposed over and retain the two segments in the tubular shape.
A loading system for use in compressing and/or loading a stent-valve for a delivery catheter, the loading system comprising:
- a distal sheath configured for compressing and covering a distal portion of the stent-valve;
- a proximal sheath configured for compressing and covering a proximal portion of the stent-valve;
- a plurality of segments configured to be disposed over the proximal sheath, the plurality of segments alone define a tubular shape that has a form fit over the proximal sheath;
- a retainer configured to be disposed over and retain the plurality of segments in the tubular shape;
- and
- an interior support configured to be fitted to a distal end of the delivery catheter and configured to apply a counterforce to the distal end of the delivery catheter to balance a force needed for forcibly translating the proximal sheath over the stent-valve.
Dependencies are inferred from the claim text.