Bifurcation graft deployment catheter
First Claim
1. An endoluminal graft deployment catheter, comprising:
- a proximal outer tube section, having a proximal end and a distal end;
an intermediate tube extending through the proximal tube section and beyond the distal end;
a central core, extending through the intermediate tube; and
a cap attached to the central core;
a tubular sheath extending over a portion of the intermediate tube and having an open distal end and a proximal end, the open distal end of the tubular sheath having a first diameter and the proximal end of the tubular sheath having a second diameter that is smaller than the first diameter, the proximal end being coupled to the intermediate tube, the tubular sheath defining a proximal cavity between the tubular sheath and the intermediate tube for receiving a proximal end of a prosthesis; and
a plug positioned in the proximal cavity between the tubular sheath and the intermediate tube, the plug defining a distal surface that faces the proximal end of the prosthesis.
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Accused Products
Abstract
Disclosed is a deployment catheter for deploying a tubular endoluminal vascular prosthesis, useful in treating, for example, an abdominal aortic aneurysm. The deployment catheter includes a proximal tubular section and a distal tubular section which are axially movable in opposite directions to deploy a prosthesis. A central core extends throughout the proximal tubular section and into the distal tubular section. A reinforcing structure is carried by the central core, spanning the junction between the proximal tubular section and distal tubular section, to improve flexibility characteristics of the catheter. In one embodiment, the proximal tubular section and/or distal tubular section are rotationally linked to the central core.
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Citations
23 Claims
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1. An endoluminal graft deployment catheter, comprising:
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a proximal outer tube section, having a proximal end and a distal end;
an intermediate tube extending through the proximal tube section and beyond the distal end;
a central core, extending through the intermediate tube; and
a cap attached to the central core;
a tubular sheath extending over a portion of the intermediate tube and having an open distal end and a proximal end, the open distal end of the tubular sheath having a first diameter and the proximal end of the tubular sheath having a second diameter that is smaller than the first diameter, the proximal end being coupled to the intermediate tube, the tubular sheath defining a proximal cavity between the tubular sheath and the intermediate tube for receiving a proximal end of a prosthesis; and
a plug positioned in the proximal cavity between the tubular sheath and the intermediate tube, the plug defining a distal surface that faces the proximal end of the prosthesis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An endoluminal graft deployment catheter, comprising:
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an elongate flexible body, having a proximal end and a distal end;
a proximal outer tube section, having a proximal end and a distal end;
a distal outer tube section, having a proximal end and a distal end, an intermediate tube extending through the proximal outer sheath tube section and beyond the distal end of the proximal outer tube section;
the intermediate tube having a first portion and a second portion, the first portion having a larger diameter than the second portion to form a distally facing surface;
a central core, extending through the proximal and distal outer tube sections and the intermediate tube;
a tubular sheath having an open distal end and a proximal end, the open distal end of the tubular sheath having a first diameter and the proximal end of the tubular sheath having a second diameter that is smaller than the first diameter, the proximal end of the tubular sheath being coupled to the second portion of the intermediate tube, the tubular sheath defining a proximal cavity for receiving a proximal end of a prosthesis; and
a spacer for filling at least partially a space between the distally facing surface of the intermediate tube and an outer surface of the tubular sheath wherein the proximal and distal tube sections define a prosthesis cavity therein for carrying the prosthesis; and
axial separation of the proximal tube section from the distal tube section opens the cavity to release the prosthesis. - View Dependent Claims (13, 14, 15, 16)
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17. An endoluminal graft deployment catheter, comprising:
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a proximal outer tube section, having a proximal end and a distal end;
an intermediate tube extending through the proximal tube section and beyond the distal end;
a central core, extending through the intermediate tube; and
a tubular sheath having an open distal end and a proximal end, the open distal end of the tubular sheath having a first diameter and the proximal end of the tubular sheath having a second diameter that is smaller than the first diameter, the proximal end being coupled to the intermediate tube, the tubular sheath defining a proximal cavity for receiving a proximal end of a prosthesis, the tubular sheath configured to maintain the proximal end of the prosthesis in a compressed configuration; and
a plug positioned in the proximal cavity, the plug defining a distal surface that faces the proximal end of the prosthesis. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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Specification