Reduced diameter stent/graft deployment catheter
First Claim
1. A system for deploying a device within vasculature, comprising:
- a catheter body, the catheter body having a sheath portion, a tube portion, a distal end and including an inner surface, the catheter body further comprises a sheath portion having a cross-sectional profile and a tube portion having a cross-sectional profile, the cross-sectional profile of said sheath portion is greater than the cross-sectional profile of said tube portion;
an inner tube slidably disposed in the catheter body; and
a plunger slidably disposed in the catheter body, the plunger having a profile configured to substantially mate with the inner surface of the catheter body, the plunger further comprises a delivery sheath portion having a cross-sectional profile and a tube portion having a cross-sectional profile, the cross-sectional profile of said delivery sheath portion is greater than the cross-sectional profile of said tube portion;
wherein the inner tube is adapted to translate longitudinally independently of the plunger beyond the distal end of the catheter body.
3 Assignments
0 Petitions
Accused Products
Abstract
A reduced diameter stent/graft deployment catheter and a method of insertion for said catheter. The delivery sheath portion of the catheter, i.e. the distal portion of the catheter containing the stent/graft, has a larger outer diameter than the remaining proximal portion of the catheter. The reduced outer diameter of the body of the catheter allows for the use of a smaller diameter introducer sheath. The method of inserting said catheter comprises the following steps: First, the delivery sheath portion of the catheter is inserted into the patient. Next, an introducer sheath, with an outer diameter which is no larger than the outer diameter of the delivery sheath, is disposed about the catheter and its distal portion inserted into the patient. The catheter is then advanced into the patient and the stent/graft deployed.
52 Citations
12 Claims
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1. A system for deploying a device within vasculature, comprising:
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a catheter body, the catheter body having a sheath portion, a tube portion, a distal end and including an inner surface, the catheter body further comprises a sheath portion having a cross-sectional profile and a tube portion having a cross-sectional profile, the cross-sectional profile of said sheath portion is greater than the cross-sectional profile of said tube portion;
an inner tube slidably disposed in the catheter body; and
a plunger slidably disposed in the catheter body, the plunger having a profile configured to substantially mate with the inner surface of the catheter body, the plunger further comprises a delivery sheath portion having a cross-sectional profile and a tube portion having a cross-sectional profile, the cross-sectional profile of said delivery sheath portion is greater than the cross-sectional profile of said tube portion;
wherein the inner tube is adapted to translate longitudinally independently of the plunger beyond the distal end of the catheter body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification