Systems and methods for delivery retrievable stents
First Claim
1. A stent delivery system for delivery and deploying an expandable stent comprising:
- a catheter;
a shaft comprising a distal end, disposed within the catheter;
an expandable stent comprising a proximal end and a distal end, wherein the shaft is attached directly to the expandable stent and the shaft is disposed within the expandable stent; and
a plurality of struts disposed within the expandable stent, wherein a first end of each strut is coupled to the shaft and a second end of each strut is coupled to the expandable stent,wherein longitudinal movement of the shaft relative to the expandable stent pulls the distal end of the expandable stent and the proximal end of the expandable stent toward one another, extends the plurality of struts radially outward, and expands the expandable stent, andwherein the plurality of struts provide an adjustable outward radial force to an outer surface of the expandable stent.
1 Assignment
0 Petitions
Accused Products
Abstract
Systems and method for delivering and deploying an expandable stent to treat Intracranial atherosclerotic disease (ICAD) involving large and medium-sized blood vessels. The disclosed systems include a catheter, a shaft comprising a distal end disposed within the catheter, an expandable stent comprising a proximal end and a distal end, wherein the shaft is coupled to the expandable stent and the shaft is disposed within the expandable stent, and a plurality of struts, wherein a first end of each strut is coupled to the shaft and a second end of each strut is coupled to the expandable stent. Longitudinal movement of the shaft relative to the expandable stent extends the plurality of struts radially outward and expands the expandable stent, similar to umbrella. The plurality of struts provides radial force to the expandable stent in an expanded configuration to the vessel walls of the patient.
43 Citations
28 Claims
-
1. A stent delivery system for delivery and deploying an expandable stent comprising:
-
a catheter; a shaft comprising a distal end, disposed within the catheter; an expandable stent comprising a proximal end and a distal end, wherein the shaft is attached directly to the expandable stent and the shaft is disposed within the expandable stent; and a plurality of struts disposed within the expandable stent, wherein a first end of each strut is coupled to the shaft and a second end of each strut is coupled to the expandable stent, wherein longitudinal movement of the shaft relative to the expandable stent pulls the distal end of the expandable stent and the proximal end of the expandable stent toward one another, extends the plurality of struts radially outward, and expands the expandable stent, and wherein the plurality of struts provide an adjustable outward radial force to an outer surface of the expandable stent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. An expandable stent system comprising:
-
a shaft comprising a distal end; an expandable stent comprising a proximal end and a distal end, wherein the shaft is attached directly to the expandable stent and the shaft is disposed within the expandable stent; and a plurality of struts disposed within the expandable stent, wherein a first end of each strut is coupled to the shaft and a second end of each strut is coupled to the expandable stent, wherein the plurality of struts extends radially outward and expands the expandable stent to an expanded configuration, and wherein the plurality of struts radially outward movement is configured to provide an adjustable outward radial force to an outer surface of the expandable stent. - View Dependent Claims (17, 18)
-
-
19. A method for deploying a retrievable expandable stent comprising:
-
inserting a catheter into a vasculature of a patient, wherein an expandable stent system is disposed within the catheter, the expandable stent system comprising; a shaft comprising a distal end; an expandable stent comprising a proximal end and a distal end, wherein the shaft is attached directly to the expandable stent and the shaft is disposed within the expandable stent; and a plurality of struts disposed within the expandable stent, wherein a first end of each strut is coupled to the shaft and a second end of each strut is coupled to the expandable stent, advancing the catheter to a target location within the patient; deploying the expandable stent outside a distal end of the catheter; and selectively controlling an outward radial force and size of the expandable stent to expand the expandable stent against vessel walls, wherein longitudinal movement of the shaft relative to the expandable stent extends the plurality of struts radially outward and expands the expandable stent. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28)
-
Specification