Occlusive Device

Abstract

An occlusive device comprising a braided component which can be inserted into a blood vessel and a delivery system for delivering said occlusive device is described.

What is claimed is: 
     
         1 . A device for filling and occluding a vascular malformation comprising:
 a braided occlusive portion comprising a plurality of braided wires; and,   an embolic coil; a portion of the braided occlusive portion extending into one end of the embolic coil.   
     
     
         2 . The device of  claim 1 , wherein the braided occlusive portion forms a circular, elliptical, semi-circular, or rectangular cross-sectional shape. 
     
     
         3 . The device of  claim 1 , wherein the braided occlusive portion forms a linearly tapered tubular braid. 
     
     
         4 . The device of  claim 1 , wherein the braided occlusive portion forms a step-tapered profile shape. 
     
     
         5 . The device of  claim 1 , wherein the braided occlusive portion forms an enlarged, trumpeted shape. 
     
     
         6 . The device of  claim 1 , wherein the braided occlusive portion forms a variable braid pitch that varies along a length of the braided occlusive portion. 
     
     
         7 . The device of  claim 1 , wherein the braided occlusive portion includes portions that are electropolished and portions that are not electropolished. 
     
     
         8 . The device of  claim 1 , wherein the plurality of braided wires comprises Nitinol and a radiopaque material. 
     
     
         9 . The device of  claim 1 , wherein the plurality of braided wires comprises wires composed of both 1) Nitinol and 2) platinum or tantalum. 
     
     
         10 . The device of  claim 1 , further comprises hydrogel placed on the interior and/or exterior of the braided occlusive portion. 
     
     
         11 . The device of  claim 1 , wherein the braided occlusive portion is packed into one end of the embolic coil. 
     
     
         12 . A device for filling and occluding a vascular malformation comprising:
 a braided occlusive portion comprising a plurality of braided wires; the braided occlusive portion forming an elliptical or rectangular cross-sectional shape; and,   a first embolic coil; a first portion of the braided occlusive portion being linearly tapered and extending into a first end of the first embolic coil.   
     
     
         13 . The device of  claim 12 , wherein the plurality of braided wires comprises wires composed of both 1) Nitinol and 2) platinum or tantalum. 
     
     
         14 . The device of  claim 12 , wherein the braided occlusive portion forms a variable braid pitch that varies along a length of the braided occlusive portion. 
     
     
         15 . The device of  claim 12 , further comprises a second embolic coil; a second portion of the braided occlusive portion being linearly tapered and packed into a second end of the second embolic coil. 
     
     
         16 . A device for filling and occluding a vascular malformation comprising:
 a braided occlusive portion comprising a plurality of braided wires;   a first embolic coil; a first portion of the braided occlusive portion extending into a first end of the first embolic coil; and,   a second embolic coil; a second portion of the braided occlusive portion extending into a second end of the second embolic coil.   
     
     
         17 . The device of  claim 16 , further comprises hydrogel placed on the interior and/or exterior of the braided occlusive portion. 
     
     
         18 . The device of  claim 16 , wherein the plurality of braided wires forms a braid angle of 30 to 150 degrees. 
     
     
         19 . The device of  claim 16 , wherein the plurality of braided wires forms a braid angle of 68 to 143 degrees. 
     
     
         20 . The device of  claim 16 , wherein the braided occlusive portion is packed into a second end of the second embolic coil.