Vessel occlusion devices, kits and methods

Abstract

A blood vessel occlusion device comprising a plurality of legs having a deployed state wherein each of the plurality of legs is angled outwardly toward a vessel wall and a delivery state wherein the plurality of legs are sized and shaped for pushing into a target blood vessel and substantially in parallel to a common longitudinal axis. Each leg has an anchoring tooth at a distal end thereof and a gripping point formed therealong. Each leg switches from deployed state to delivery state by a retention element and maintained in delivery state when said retention element is supported by the gripping point.

1 - 20 . (canceled) 
     
     
         21 . A blood vessel occlusion device, comprising:
 an expandable proximal ring having a proximal outer radial surface and a plurality of anchoring teeth therealong;   an expandable distal ring having a distal outer radial surface and a plurality of anchoring teeth therealong; and   a constriction mechanism;   wherein said plurality of anchoring teeth are capable of grasping a vein's wall and said constriction mechanism constrains torsion movement of said expandable proximal ring relative to said expandable distal ring.   
     
     
         22 . The blood vessel occlusion device according to  claim 21 , further comprising at least one of:
 a deployment device; and   a pushing element wherein said deployment device has a lumen and said pushing element fits into said lumen.   
     
     
         23 . The blood vessel occlusion device according to  claim 21 , further comprising a blood clot cage essentially distal to said expandable distal ring. 
     
     
         24 . The blood vessel occlusion device according to  claim 21 , wherein said expandable proximal ring and said expandable distal ring are made of a shape memory alloy. 
     
     
         25 - 33 . (canceled) 
     
     
         34 . The blood vessel occlusion device according to  claim 21 , further comprising:
 an upper anchoring element mounted on said expandable ring; and   a lower anchoring element mounted on said expandable tubular frame;   wherein said upper and lower anchoring elements are capable of grasping a blood vessel wall; wherein said expandable tubular frame has and an interior side and an exterior side and upon pulling said expandable ring towards said lower end said expandable ring creates a funnel shape at said interior side thereby changing the position of said upper anchoring element.   
     
     
         35 . (canceled) 
     
     
         36 . A blood vessel occlusion device, comprising:
 an expandable sleeve having an inner side, an outer side;   a plurality of anchoring teeth on said outer side;   a pulling wire attached to said expandable sleeve; and   a retention element positioned to wrap around said expandable sleeve;   wherein said expandable sleeve has an unturned mode and a turned mode, when said outer side faces outside of said expandable sleeve when in unturned mode and faces inside of said expandable sleeve when in turned mode and said pulling wire is capable of transforming said expandable sleeve from unturned mode to turned mode by flipping said expandable sleeve inside out and said plurality of anchoring teeth are capable of grasping a vein's wall and said retention element restricts the dimensions of said expandable sleeve.   
     
     
         37 . The blood vessel occlusion device according to  claim 36 , wherein said expandable sleeve have a front side and a rear side and said retention element is positioned at said rear side. 
     
     
         38 . The blood vessel occlusion device according to  claim 36 , wherein said expandable sleeve is thermally treated. 
     
     
         39 . The blood vessel occlusion device according to  claim 36 , further comprising a deployment device which limits the expansion of said expandable sleeve and is capable of delivering said blood vessel occlusion device to a target blood vessel. 
     
     
         40 . The blood vessel occlusion device according to  claim 36 , further comprising a blood clot cage essentially in front of said front side. 
     
     
         41 . The blood vessel occlusion device according to  claim 36 , wherein said expandable sleeve is made of a shape memory alloy. 
     
     
         42 . A method for occluding a blood vessel comprising:
 inserting a deployment device carrying an expandable element and a constriction element into a target blood vessel;   moving said deployment device with respect to said expandable element thereby releasing top part of said expandable element and allowing said expandable element to attach to a blood vessel wall;   moving said constricting element with respect to said expandable element thereby narrowing said expandable element; and   moving said deployment device with respect to said expandable element thereby releasing bottom part of said expandable element allowing said expandable element to self stabilize against vessel wall.   
     
     
         43 . The method for occluding a blood vessel according to  claim 42 , further comprising at least one of:
 removing said deployment device from said target blood vessel;   delivering an occluding agent; and   rotating said expandable element after said releasing top part.   
     
     
         44 . A method for occluding a blood vessel comprising:
 inserting a deployment device carrying an expandable spiral element into a target blood vessel;   moving said deployment device with respect to said expandable spiral element thereby releasing said expandable spiral element and allowing said expandable spiral element to attach to a blood vessel wall; and   constricting expandable spiral element.   
     
     
         45 . The method for occluding a blood vessel comprising according to  claim 44 , wherein constriction is performed by rotating said expandable spiral element thereby occluding said blood vessel. 
     
     
         46 . A method for occluding a blood vessel comprising:
 inserting a deployment device carrying an expandable proximal ring and an expandable distal ring into a target blood vessel;   moving said deployment device with respect to said expandable distal ring thereby releasing said expandable distal ring and attaching said expandable distal ring to a target blood vessel wall;   rotating said expandable distal ring to constrict said target blood vessel wall;   moving said deployment device with respect to said expandable proximal ring thereby releasing said expandable proximal ring and attaching said expandable proximal ring to a target blood vessel wall;   rotating said expandable proximal ring to constrict said target blood vessel wall; and   constricting torsion movement of said expandable proximal ring with respect to said expandable distal ring;   wherein said target blood vessel is occluded by said rotation of said expandable distal ring and rotation of said expandable proximal ring.   
     
     
         47 . The method for occluding a blood vessel according to  claim 46 , wherein rotation of said expandable distal ring is in counter direction with respect to rotation of said expandable proximal ring. 
     
     
         48 . The method for occluding a blood vessel according to  claim 46 , further comprising at least one of:
 removing said deployment device from said target blood vessel; and   releasing an occluding agent.   
     
     
         49 . A method for occluding a blood vessel comprising:
 inserting a deployment device carrying an expandable sleeve and a constriction element into a target blood vessel;   moving said deployment device with respect to said expandable sleeve thereby releasing top part of said expandable sleeve and allowing said expandable sleeve to attach to a blood vessel wall;   flipping said expandable sleeve inside out; and   moving said constricting element with respect to said expandable sleeve thereby narrowing said expandable sleeve.   
     
     
         50 . The method according to  claim 49 , further comprising at least one of:
 removing said deployment device from said target blood vessel; and   releasing an occluding agent.