Device for loading a self-expandable prosthesis into a sheath
AssigneeCook Medical Technologies LLC
InventorsPer Hendriksen, Allan G. Hemmingsen, Jacob Lund Clausen
Life of this patent
Estimating the term…
Abstract
An assembly comprising: a protective sheath and a loading device for loading a self-expandable prosthesis into said sheath, the loading device having a conical distal section, which radially compresses the prosthesis and an annular lip that engages with the interior of the distal end of said sheath to guide the prosthesis into the sheath while protecting the sheath from damage.
Claims16
An apparatus for loading a self-expandable prosthesis into a protective sheath having an interior sheath radius, the apparatus comprising:
- a passageway through the apparatus extending along an axis and having a proximal and a distal end, the passageway comprising:
- a distal section and a proximal section adjacent the distal section;
- wherein the distal section has an interior radius that decreases with distance from the distal end to a first value adjacent a rim of the loading apparatus, at least one portion of the rim having an exterior radius that is smaller than the interior sheath radius, the rim extending axially into the proximal section with the at least one portion.
An assembly comprising:
- a protective sheath having interior and exterior radii and a distal end;
- and
- a loading device for loading a self-expandable prosthesis into the sheath, the loading device comprising:
- a passageway through the device extending along an axis and having a proximal and a distal end, the passageway comprising:
- a distal section having an interior radius that decreases with distance from the distal end to a first value at a rim of the loading device, the first value being less than the interior radius of the sheath;
- the passageway further comprising a proximal section harboring the sheath;
- the rim extending axially so as to engage with the interior of the distal end of the sheath with a portion of the rim having an exterior radius smaller than the interior radius of the sheath and prevent distal movement of the sheath relative to the device.
A system for loading a self-expandable prosthesis into a protective sheath, the system comprising:
- a self-expandable prosthesis releasably attached to the distal end of a wire;
- a protective sheath having interior and exterior radii and a distal end;
- and
- a loading device for loading a self-expandable prosthesis into the sheath, the loading device comprising:
- a passageway through the device extending along an axis and having a proximal and a distal end;
- a conical section surrounding a distal portion of the passageway, the conical section narrowing with distance from the distal end of the passageway;
- a rim extending located proximally to the conical section, the rim extending axially so as to engage with the interior of the distal end of the sheath and prevent distal movement of the sheath relative to the device;
- wherein, the wire extends axially through the passageway and along the lumen of the protective sheath and wherein the rim prevents the prosthesis from contacting the distal end of the sheath during loading.
Dependencies are inferred from the claim text.