Occlusive medical device

Abstract

An example occlusive implant is disclosed. The example occlusive implant includes an expandable framework including a height and a plurality of support members defining a proximal end region of the expandable framework and a central hub member attached to the plurality of support members. Additionally, the expandable framework is configured to shift between a first configuration and a second configuration, wherein the height of the expandable framework remains substantially the same in both the first configuration and the second configuration. Further, the central hub member is configured to shift relative to the proximal end region while the expandable framework shifts between the first configuration and the second configuration.

What is claimed: 
     
         1 . (canceled) 
     
     
         2 . An occlusive implant, comprising:
 a distal expandable framework having a proximal end and a distal end, the distal expandable framework configured to shift between a collapsed configuration and an expanded configuration;   a hub member having a distal end fixed to the proximal end of the distal expandable framework;   a proximal occlusive disk fixed to a proximal end of the hub member, the proximal disk disposed proximal of the distal expandable framework in both the collapsed configuration and the expanded configuration; and   a first occlusive member disposed on a proximal end region of the distal expandable framework, adjacent the hub member.   
     
     
         3 . The occlusive implant of  claim 2 , wherein the distal expandable framework has a height, wherein the height remains substantially the same in both the collapsed configuration and the expanded configuration. 
     
     
         4 . The occlusive implant of  claim 2 , wherein the distal expandable framework includes a plurality of support members, wherein proximal ends of the plurality of support members are fixed to the hub member and distal ends of the plurality of support members are free. 
     
     
         5 . The occlusive implant of  claim 2 , wherein the distal expandable framework includes a longitudinal axis, wherein the hub member is configured to shift along the longitudinal axis relative to the proximal end region while the distal expandable framework shifts between the collapsed configuration and the expanded configuration. 
     
     
         6 . The occlusive implant of  claim 2 , wherein the proximal occlusive disk has an outer diameter greater than an outer diameter than the distal expandable framework in the expanded configuration. 
     
     
         7 . The occlusive implant of  claim 6 , wherein the outer diameter of the proximal occlusive disk is reduced when the distal expandable framework is in the collapsed configuration. 
     
     
         8 . The occlusive implant of  claim 2 , wherein the proximal occlusive disk is spaced apart axially from the distal expandable framework by the hub member. 
     
     
         9 . The occlusive implant of  claim 2 , further comprising a plurality of anchor members extending radially outward from the distal expandable framework. 
     
     
         10 . The occlusive implant of  claim 2 , wherein the distal expandable framework includes a first radial outward force in the collapsed configuration and a second radial outward force in the expanded configuration, and wherein the first radial outward force is substantially equivalent to the second radial outward force. 
     
     
         11 . The occlusive implant of  claim 2 , further comprising a second occlusive member disposed along a distal end region of the distal expandable framework. 
     
     
         12 . The occlusive implant of  claim 2 , wherein the proximal occlusive disk and the first occlusive member are made from the same material. 
     
     
         13 . An occlusive implant, comprising:
 a distal expandable framework having a proximal end and a distal end and a height measured therebetween, the distal expandable framework configured to shift between a collapsed configuration and an expanded configuration;   a hub member having a distal end fixed to the proximal end of the distal expandable framework, wherein the distal expandable framework first extends radially outward from the hub member defining the proximal end and then extends distally along the height; and   a proximal occlusive disk fixed to a proximal end of the hub member, the proximal disk disposed proximal of the distal expandable framework in both the collapsed configuration and the expanded configuration.   
     
     
         14 . The occlusive implant of  claim 13 , further comprising a first occlusive member disposed on a proximal end region of the distal expandable framework, adjacent the hub member. 
     
     
         15 . The occlusive implant of  claim 14 , wherein the distal expandable framework includes a longitudinal axis, wherein the hub member is configured to shift along the longitudinal axis relative to the proximal end region while the distal expandable framework shifts between the collapsed configuration and the expanded configuration. 
     
     
         16 . The occlusive implant of  claim 14 , further comprising a second occlusive member disposed along a distal end region of the distal expandable framework. 
     
     
         17 . The occlusive implant of  claim 13 , wherein the distal expandable framework includes a plurality of support members, wherein proximal ends of the plurality of support members are fixed to the hub member and distal ends of the plurality of support members are free. 
     
     
         18 . The occlusive implant of  claim 13 , wherein the proximal occlusive disk has an outer diameter greater than an outer diameter than the distal expandable framework in the expanded configuration. 
     
     
         19 . The occlusive implant of  claim 13 , wherein the proximal occlusive disk is spaced apart axially from the distal expandable framework by the hub member. 
     
     
         20 . The occlusive implant of  claim 13 , further comprising a plurality of anchor members extending radially outward from the distal expandable framework. 
     
     
         21 . An occlusive implant, comprising:
 a distal expandable framework configured to shift between a collapsed configuration and an expanded configuration;   a hub member having a distal end fixed to the proximal end of the distal expandable framework; and   a proximal occlusive disk fixed to a proximal end of the hub member, the proximal occlusive disk having an outer diameter greater than an outer diameter of the distal expandable framework in the expanded configuration;   wherein the distal expandable framework includes a plurality of support members having proximal ends fixed to the hub member and free distal ends defining a distalmost end of the distal expandable framework.