Expandable iliac sheath and method of use
First Claim
1. A sheath hub for a catheter, the sheath hub comprising:
- a housing having a proximal end defining a proximal opening, a distal end defining a distal opening and a chamber disposed therebetween; and
a valve disposed within the chamber, the valve comprising a plurality of valve members, the plurality of valve members configured to control blood leakage through the hub at arterial pressures when nothing is inserted through the chamber up to and including a device that is 26 French in diameter inserted through the chamber;
wherein the housing includes a first port configured for purging and aspirating fluid from the chamber and a second port for infusing into and removing fluid from a jacket configured to collapse a sheath of said sheath hub.
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Accused Products
Abstract
Disclosed is an expandable transluminal sheath, for introduction into the body while in a first, collapsed cross-sectional configuration, subsequent expansion of at least a part of the distal end of the sheath to a second, enlarged cross-sectional configuration, and subsequent removal in a third, collapsed cross-sectional configuration. The sheath is configured for use in the vascular system and has utility in the introduction and removal of implant delivery catheters. The access route is through the femoral arteries and the iliac arteries into the aorta. The distal end of the sheath is maintained in the first, collapsed cross-sectional configuration during advancement to the arteries into the aorta. The distal end of the sheath is then expanded using a radial dilatation device, which is removed prior to the introduction of implant delivery catheters. The distal end of the sheath is subsequently reduced to a diametrically small size for removal.
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Citations
14 Claims
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1. A sheath hub for a catheter, the sheath hub comprising:
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a housing having a proximal end defining a proximal opening, a distal end defining a distal opening and a chamber disposed therebetween; and a valve disposed within the chamber, the valve comprising a plurality of valve members, the plurality of valve members configured to control blood leakage through the hub at arterial pressures when nothing is inserted through the chamber up to and including a device that is 26 French in diameter inserted through the chamber; wherein the housing includes a first port configured for purging and aspirating fluid from the chamber and a second port for infusing into and removing fluid from a jacket configured to collapse a sheath of said sheath hub. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification