Delivery system for self-expanding stent, a method of using the delivery system, and a method of producing the delivery system
First Claim
1. A medical appliance, comprising:
- an outer sheath adapted to enclose a self-expanding stent in an interior space before deployment of the self-expanding stent;
an inner sheath enclosed within the outer sheath and adapted to be arranged about proximally adjacent to the self-expanding stent before deployment of the self-expanding stent; and
a plurality of extensions coupled to a distal end of the inner sheath, the extensions adapted to be arranged between the outer sheath and the self-expanding stent before deployment of the self-expanding stent.
1 Assignment
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Accused Products
Abstract
A medical appliance is provided that includes an outer sheath adapted to enclose a self-expanding stent in an inner space before deployment of the self-expanding stent and an inner sheath arranged between the outer sheath and the self-expanding stent before deployment of the self-expanding stent. The inner sheath includes longitudinal slits that extend from a distal end of the medical appliance to the proximal end. The longitudinal slits form a plurality of inner sleeve tails. The medical appliance also includes an actuator adapted to move the outer sheath with respect to the inner sheath during deployment of the self-expanding stent. The actuator is adapted to cause the outer sheath to move proximally. A method of deploying a self-expanding stent is provided. A method of loading a delivery mechanism is provided.
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Citations
29 Claims
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1. A medical appliance, comprising:
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an outer sheath adapted to enclose a self-expanding stent in an interior space before deployment of the self-expanding stent;
an inner sheath enclosed within the outer sheath and adapted to be arranged about proximally adjacent to the self-expanding stent before deployment of the self-expanding stent; and
a plurality of extensions coupled to a distal end of the inner sheath, the extensions adapted to be arranged between the outer sheath and the self-expanding stent before deployment of the self-expanding stent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method of deploying a self-expanding stent, comprising:
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inserting an outer sheath into a lumen of a body, the outer sheath coupled to a catheter, the outer sheath enclosing an inner sheath and a plurality of extensions, the plurality of extensions coupled to a distal end of the inner sheath and enclosing the self-expanding stent; and
activating an activator to move the outer sheath relative to the inner sheath and the plurality of extensions, the outer sheath moving proximally, the plurality of extensions allowing the self-expanding stent to expand to an edge of the lumen. - View Dependent Claims (20, 21)
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22. A method of loading a delivery mechanism, comprising:
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inserting an inner sheath into an outer sheath, the inner sheath comprising a tube having a plurality of longitudinal slits bounded at least distally by a circumferential ring, the outer sheath coupled to a catheter, the catheter including an activation mechanism adapted to move the outer sheath proximally with respect to an expandable pusher; and
detaching each of the longitudinal slits from each other of the longitudinal slits at a distal end of the inner sheath. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29)
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Specification