Delivery system with medical device release by evertable sleeve

Abstract

A medical device delivery system has a tubular member defining a passageway and an inner member slideably disposed within the passageway. An expandable intraluminal medical device is disposed on a chamber of the inner member, and an evertable sleeve is attached to the inner member proximal to the chamber and to an inner surface of the tubular member. Relative movement between the tubular and outer members moves the evertable sleeve from a first position substantially overlying the expandable intraluminal medical device to a second position substantially proximal to the chamber.

1 . A medical device delivery system, comprising:
 a tubular member having a proximal end defining a proximal opening, a distal end defining a distal opening, and an inner surface defining a passageway extending between the proximal and distal openings;   an inner member slideably disposed within the passageway of the tubular member, the inner member comprising an elongate body defining an inner passageway adapted to slideably receive a wireguide, a chamber for receiving an expandable intraluminal medical device, and a distal tip adapted for navigation through a body vessel, the chamber having a second proximal end and a second distal end;   an expandable intraluminal medical device disposed on the inner member at the chamber; and   an evertable sleeve attached to the inner member proximal to the chamber and to the inner surface of the tubular member at the distal end, the evertable sleeve comprising a flexible tubular member adapted to move between a first position substantially overlying the expandable intraluminal medical device between the chamber and the inner surface of the tubular member and a second position substantially proximal to the chamber upon relative axial movement among the tubular member and the inner member.   
     
     
         2 . The medical device delivery system according to  claim 1 , wherein the evertable sleeve has a second inner surface having first and second end portions, the first end portion attached to the inner member and the second end portion attached to the inner surface of the tubular member. 
     
     
         3 . The medical device delivery system according to  claim 1 , wherein the evertable sleeve has a second inner surface, an outer surface, a second proximal end, and a second distal end, the second proximal end of the second inner surface attached to the inner member and the second distal end of the outer surface attached to the inner surface of the tubular member. 
     
     
         4 . The medical device delivery system according to  claim 1 , wherein the evertable sleeve has a second proximal end and a second distal end; and
 wherein at least one of the second proximal and second distal ends comprises a flange.   
     
     
         5 . The medical device delivery system according to  claim 4 , wherein the flange comprises a circumferential ring structure. 
     
     
         6 . The medical device delivery system according to  claim 4 , wherein the flange comprises a partial circumferential ring structure. 
     
     
         7 . The medical device delivery system according to  claim 1 , wherein the evertable sleeve has a second proximal end and a second distal end; and
 wherein at least one of the second proximal and second distal ends is embedded within a flange.   
     
     
         8 . The medical device delivery system according to  claim 1 , wherein the evertable sleeve has a second proximal end and a second distal end; and
 wherein the second distal ends is embedded within a flange; and   wherein the flange includes a rounded inner edge.   
     
     
         9 . The medical device delivery system according to  claim 1 , wherein the evertable sleeve has a second proximal end and a second distal end; and
 wherein the second proximal end extends proximally along a portion of the inner member proximal to the chamber; and   wherein the second distal end extends proximally along a portion of the inner surface of the tubular member.   
     
     
         10 . The medical device delivery system according to  claim 1 , wherein the evertable sleeve has a second proximal end and a second distal end; and
 wherein the second proximal end extends proximally along a portion of the inner member proximal to the chamber; and   wherein the second distal end extends distally along a portion of the inner surface of the tubular member toward the distal end.   
     
     
         11 . The medical device delivery system according to  claim 1 , wherein the sleeve comprises ePTFE, nylon, or another polymeric material. 
     
     
         12 . The medical device delivery system according to  claim 1 , wherein the expandable intraluminal medical device comprises a self-expandable intraluminal medical device. 
     
     
         13 . The medical device delivery system according to  claim 1 , wherein the expandable intraluminal medical device requires an application of an expansion force to effect expansion. 
     
     
         14 . The medical device delivery system according to  claim 1 , wherein the expandable intraluminal medical device includes a graft member. 
     
     
         15 . The medical device delivery system according to  claim 14 , wherein the expandable intraluminal medical device comprises a stent graft device, an occluder, a prosthetic valve, or an expandable filter. 
     
     
         16 . The medical device delivery system according to  claim 1 , wherein the chamber comprises an axial section of the inner member having a reduced diameter as compared to a proximal portion of the inner member. 
     
     
         17 . The medical device delivery system according to  claim 1 , wherein the evertable sleeve has a second proximal end and a second distal end; and
 wherein the second proximal end is embedded in a first flange having a third proximal end and a third distal end and the second distal end is embedded in a second flange having a fourth proximal end and a fourth distal end, the second proximal end embedded in the third distal end of the first flange and the second distal end embedded in the fourth distal end of the second flange.   
     
     
         18 . The medical device delivery system according to  claim 1 , wherein the evertable sleeve has a second proximal end and a second distal end; and
 wherein the second proximal end is embedded in a first flange having a third proximal end and a third distal end and the second distal end is embedded in a second flange having a fourth proximal end and a fourth distal end, the second proximal end embedded in the third distal end of the first flange and the second distal end embedded in the fourth proximal end of the second flange.   
     
     
         19 . The medical device delivery system according to  claim 1 , wherein the evertable sleeve has a second outer surface, a second inner surface, a second proximal end and a second distal end; and
 wherein the second proximal end has a third surface facing inward toward the inner member and the second distal end has a fourth surface facing outward toward the tubular member, the third surface and the fourth surface each being a portion of the second outer surface.   
     
     
         20 . The medical device delivery system according to  claim 1 , wherein the evertable sleeve has a second outer surface, a second inner surface, a second proximal end and a second distal end; and
 wherein the second proximal end has a third surface facing inward toward the inner member and the second distal end has a fourth surface facing outward toward the tubular member, the third surface being a portion of the second outer surface and the fourth surface being a portion of the second inner surface.   
     
     
         21 . A medical device delivery system, comprising:
 a tubular member having a proximal end defining a proximal opening, a distal end defining a distal opening, and an inner surface defining a passageway extending between the proximal and distal openings;   an inner member slideably disposed within the passageway of the tubular member, the inner member comprising an elongate body defining an inner passageway adapted to slideably receive a wireguide, a chamber for receiving an expandable intraluminal medical device, and a distal tip adapted for navigation through a body vessel, the chamber having a second proximal end and a second distal end and comprising an axial section of the inner member having a reduced diameter as compared to a proximal portion of the inner member;   an expandable intraluminal medical device disposed on the inner member at the chamber; and   an evertable sleeve attached to the inner member proximal to the chamber and to the inner surface of the tubular member at the distal end, the evertable sleeve comprising a flexible tubular member adapted to move between a first position substantially overlying the expandable intraluminal medical device between the chamber and the inner surface of the tubular member and a second position substantially proximal to the chamber upon relative axial movement among the tubular member and the inner member.   
     
     
         22 . The medical device delivery system according to  claim 21 , wherein the evertable sleeve has a second inner surface having first and second end portions, the first end portion attached to the inner member and the second end portion attached to the inner surface of the tubular member. 
     
     
         23 . The medical device delivery system according to  claim 21 , wherein the evertable sleeve has a second inner surface, an outer surface, a second proximal end, and a second distal end, the second proximal end of the second inner surface attached to the inner member and the second distal end of the outer surface attached to the inner surface of the tubular member. 
     
     
         24 . A medical device delivery system, comprising:
 a tubular member having a proximal end defining a proximal opening, a distal end defining a distal opening, and an inner surface defining a passageway extending between the proximal and distal openings;   an inner member slideably disposed within the passageway of the tubular member, the inner member comprising an elongate body defining an inner passageway adapted to slideably receive a wireguide, a chamber for receiving an expandable intraluminal medical device, and a distal tip adapted for navigation through a body vessel, the chamber having a second proximal end and a second distal end and comprising an axial section of the inner member having a reduced diameter as compared to a proximal portion of the inner member;   an expandable intraluminal medical device disposed on the inner member at the chamber; and   an evertable sleeve attached to the inner member proximal to the chamber and to the inner surface of the tubular member at the distal end, the evertable sleeve comprising a flexible tubular member having a second proximal end and a second distal end embedded within a flange having a rounded inner edge;   wherein the second proximal end extends proximally along a portion of the inner member proximal to the chamber; and   wherein the second distal end extends distally along a portion of the inner surface of the tubular member toward the distal end.