Occlusion device and methods of using the same

Abstract

An occlusion device for occluding a body vessel and methods of using the device are disclosed.

1 . An occlusion device for occluding a body lumen comprising:
 a proximal end,   a distal end spaced from the proximal end along a longitudinal axis,   an occluding member disposed between the proximal end and distal end, the occluding member moveable between a radially-outwardly expanded configuration and a contracted configuration,   at least one biasing member attached to and disposed within the occluding member and extending between the proximal and distal ends along a longitudinal axis, the biasing member having a contracted configuration and an extended configuration such that when the biasing member is in the contracted position the occlusion member is moved to the expanded configuration and when the biasing member is in the extended position the occlusion member is moved to the contracted configuration.   
     
     
         2 . The occlusion device of  claim 1  wherein the proximal end of the occlusion device comprises a proximal hub and wherein the distal end of the occlusion device comprises a distal hub. 
     
     
         3 . The occlusion device of  claim 2  wherein the at least one biasing member is attached to the proximal and distal hubs. 
     
     
         4 . The occlusion device of  claim 1  wherein the biasing member is biased in the contracted configuration. 
     
     
         5 . The occlusion device of  claim 1  wherein the biasing member is a helical coil. 
     
     
         6 . The occlusion device of  claim 1  wherein at least a portion of the occluding member comprises a woven mesh. 
     
     
         7 . The occlusion device of  claim 6  wherein at least a portion of the woven mesh forms an occlusive barrier that extends radially around the longitudinal axis. 
     
     
         8 . The occlusion device of  claim 1  wherein the longitudinal axis comprises a midpoint located approximately halfway between the proximal and distal ends of the device and wherein the occlusion member extends radially outwardly away from the longitudinal axis to define a largest diameter at the midpoint when the occlusion member is in an expanded configuration. 
     
     
         9 . The occlusion device of  claim 6  wherein the woven mesh comprises a self-expanding material and a polyester fiber. 
     
     
         10 . The occlusion device of  claim 9  wherein the self-expanding material and polyester fiber are woven in a ratio of at least one of 1:1; 1:2; 1:3; 1:4; 2:1; 3:1 and 4:1. 
     
     
         11 . The occlusion device of  claim 1  wherein at least one of the proximal and distal ends comprises a radiopaque material. 
     
     
         12 . The occlusion device of  claim 1  wherein at least one of the proximal and distal ends is configured for releasable attachment to a delivery device. 
     
     
         13 . The occlusion device of  claim 1  wherein at least one of the proximal and distal ends comprises an atraumatic tip. 
     
     
         14 . An occlusion device for occluding a body vessel comprising:
 a proximal end,   a distal end spaced from the proximal end along a longitudinal axis,   an occluding member disposed between the proximal end and distal end, the occluding member moveable between a radially-outwardly expanded configuration and a contracted configuration,   a first biasing member disposed within the occluding member and having a first end adjoined to the proximal end of the device,   a second biasing member disposed within the occluding member and having a first end adjoined to the distal end of the device, the second biasing member configured to engage the first biasing member.   
     
     
         15 . The occlusion device of  claim 14  wherein when proximal and distal ends are moved towards each other along the longitudinal axis, the occlusion member is moveable to the expanded configuration, and when proximal and distal ends are moved away from each other along the longitudinal axis, the occlusion member is moveable to the contracted configuration. 
     
     
         16 . The occlusion device of  claim 14  wherein at least one of the first and second biasing members is rotatable with respect to the other biasing member. 
     
     
         17 . The occlusion device of  claim 14  wherein at least one of the first and second biasing members is a helical coil. 
     
     
         18 . The occlusion device of  claim 14  wherein at least one of the first and second biasing members is threaded. 
     
     
         19 . The occlusion device of  claim 14  wherein the occluding member comprises a woven mesh. 
     
     
         20 . The occlusion device of  claim 19  wherein the self-expanding material and polyester fiber are woven in a ratio of at least one of 1:1; 1:2; 1:3; 1:4; 2:1; 3:1 and 4:1.