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US 2019/0167460 A1Published application
Self-expanding stent delivery system
AssigneeBoston Scientific Scimed, Inc.
InventorsJAN WEBER, JAMES M. ANDERSON, TIMOTHY A. OSTROOT, DEREK C. SUTERMEISTER, CASS A. HANSON
Life of this patent
Estimating the term…
Abstract
Systems for the delivery of endoluminal devices are disclosed. An illustrative system may include a delivery sheath having an inner sheath and an outer sheath. The delivery sheath may be configured to restrain a stent in a compressed delivery configuration. The outer sheath may cover the entire length of the stent and the inner sheath may cover a portion of the length of the stent.
Claims20
A stent delivery system comprising:
- an elongate catheter shaft having a distal end region and a proximal end region;
- a stent having a proximal end region, a distal end region, and a length extending therebetween, the stent disposed about the distal end region of the elongate catheter shaft;
- a handle including an actuation assembly;
- and
- a delivery sheath having a proximal end region and distal end region, the proximal end region affixed to a portion of the actuation assembly, wherein the delivery sheath is disposed over the elongate catheter shaft and the stent, the delivery sheath comprising:
- an outer sheath having a proximal end region and a distal end region;
- an inner sheath slidably disposed within the outer sheath, the inner sheath having a proximal end region and a distal end region;
- and
- a solid lubricant disposed between the inner sheath and the outer sheath.
6 more elements
A stent delivery system comprising:
- an elongate catheter shaft having a distal end region and a proximal end region;
- a stent having a proximal end region, a distal end region, and a length extending therebetween, the stent disposed about the distal end region of the elongate catheter shaft;
- a handle including a thumb wheel, a pinion, an outer tubular member including a plurality of teeth and grooves, and an inner tubular member slidably disposed within the outer tubular member;
- and
- a delivery sheath having a proximal end region and distal end region, the proximal end region affixed to the rack assembly, wherein the delivery sheath is disposed over the elongate catheter shaft and the stent, the delivery sheath comprising:
- an outer sheath having a proximal end region coupled to a distal end of the outer tubular member and a distal end region;
- an inner sheath slidably disposed within the outer sheath, the inner sheath having a proximal end region coupled to a distal end of the inner tubular member and a distal end region;
- and
- a solid lubricant disposed between the inner sheath and the outer sheath.
6 more elements
A method for delivering a stent to a desired location, the method comprising:
- advancing a stent delivery system to a desired location, the stent delivery system comprising:
- an elongate catheter shaft having a distal end region and a proximal end region;
- a stent having a proximal end region, a distal end region, and a length extending therebetween, the stent disposed about the distal end region of the elongate catheter shaft;
- a handle including a thumb wheel, a pinion, and a rack assembly;
- and
- a delivery sheath having a proximal end region and distal end region, the proximal end region affixed to the rack assembly, wherein the delivery sheath is disposed over the elongate catheter shaft and the stent, the delivery sheath comprising:
- an outer sheath having a proximal end region and a distal end region;
- an inner sheath slidably disposed within the outer sheath, the inner sheath having a proximal end region and a distal end region;
- and
- a solid lubricant disposed between the inner sheath and the outer sheath
- proximally retracting the outer sheath independently of the inner sheath over a distal portion of the stent;
- and
- proximally retracting the outer sheath and the inner sheath simultaneously over a proximal portion of the stent.
10 more elements
Dependencies are inferred from the claim text.