Endoluminal prosthesis introducer
AssigneeCook Medical Technologies LLC
InventorsBlayne A. Roeder, Timothy A. Resch
Life of this patent
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Abstract
An endoluminal prosthesis introducer may include an elongate tubular sheath including a reinforced longitudinal segment and a peelable longitudinal segment extending distally from the reinforced segment. An elongate tubular cannula may be disposed within the sheath. Upon application of a force applied to a distal end of the sheath, the peelable segment may progressively split in a proximal direction, and the reinforced segment may longitudinally move relative to the cannula in a distal direction.
Claims18
An endoluminal prosthesis introducer comprising:
- an elongate tubular sheath comprising a reinforced longitudinal segment and a peelable longitudinal segment extending distally from the reinforced segment;
- and
- an elongate tubular cannula disposed within the sheath,
- wherein, upon application of a force applied to a distal end of the sheath, the peelable segment progressively splits in a proximal direction and the reinforced segment longitudinally moves relative to the cannula in a distal direction,
- wherein the sheath comprises a tubular sidewall, and the reinforced segment of the sheath comprises a reinforcing member attached to the sidewall, and
- wherein the peelable segment is free of the reinforcing member.
A system comprising:
- an introducer and an endoluminal prosthesis loaded on the introducer;
- the introducer comprising:
- an elongate tubular sheath comprising a peelable longitudinal segment;
- an elongate tubular cannula disposed within the sheath;
- and
- a handle positioned at a proximal end of the cannula;
- the prosthesis comprising a tubular body comprising a lumen extending longitudinally within the tubular body;
- wherein the sheath comprises a tubular sidewall, and the reinforced segment of the sheath comprises a reinforcing member attached to the sidewall,
- wherein the peelable segment is free of the reinforcing member,
- wherein the prosthesis is positioned about a proximal end of the cannula, and, in response to a pulling force applied to a distal end of the sheath, the peelable segment of the sheath progressively splits in a proximal direction and the sheath moves longitudinally relative to the prosthesis between a delivery configuration in which the sheath is positioned over the prosthesis and a deployment configuration in which the sheath is positioned distal of the prosthesis;
- and
- wherein, in the delivery configuration, the distal end of the sheath is spaced longitudinally from a proximal end of the handle by a distance that is shorter than a length of the prosthesis.
A method of deploying an endoluminal prosthesis, the method comprising:
- providing the prosthesis loaded on an introducer, the introducer comprising an elongate tubular sheath and an elongate tubular cannula disposed within the sheath, the prosthesis disposed about a proximal end of the cannula and within the sheath;
- progressively splitting a peelable segment of the sheath by applying a pulling force to a distal end of the sheath;
- and in response to progressively splitting the peelable segment of the sheath, pulling a reinforced segment of the sheath positioned proximal of the peelable segment distally relative to the prosthesis a sufficient distance to uncover the prosthesis,
- wherein the sheath comprises a tubular sidewall, and the reinforced segment of the sheath comprises a reinforcing member attached to the sidewall, and wherein the peelable segment is free of the reinforcing member.
Dependencies are inferred from the claim text.