Medical devices

Abstract

Medical devices, and related components and methods, are disclosed.

What is claimed is: 
     
         1 . A method for treating a target site in the body, the method comprising:
 inserting a catheter into a body lumen of a patient, the catheter comprising:
 a tubular member having a proximal portion, a distal portion and a lumen extending therein; and 
 an inflatable member disposed on the distal portion of the tubular member; 
   inflating the inflatable member such that at least a portion of the distal portion of the tubular member substantially aligns with a longitudinal axis of the body lumen;   delivering an embolic material into the body lumen to form a first occlusion at a first location;   deflating the inflatable member;   rotating the tubular member within the body lumen such that the embolic material may be injected in a second direction different from the first direction.   
     
     
         2 . The method of  claim 1 , wherein the inflatable member is eccentrically disposed on the distal portion of the tubular member. 
     
     
         3 . The method of  claim 2 , wherein the inflatable member has a first wall portion having a first thickness and a second wall portion having a second wall thickness, the second wall thickness being greater than the first wall thickness. 
     
     
         4 . The method of  claim 3 , wherein the inflating the inflatable member includes inflating the first wall portion at a greater rate than the second wall portion, and wherein inflating the second wall portion at a greater rate forms a curve in the distal portion of the tubular member. 
     
     
         5 . The method of  claim 1 , wherein the embolic material is selected from the group consisting of embolic gels, embolic particles, embolic coils, and combinations thereof. 
     
     
         6 . The method of  claim 1 , wherein the embolic material comprises embolic particles. 
     
     
         7 . The method of  claim 1 , wherein the embolic material comprises an embolic gel. 
     
     
         8 . The method of  claim 1 , wherein the body lumen comprises one or more branches of the portal vein. 
     
     
         9 . The method of  claim 1 , further comprising delivering embolic material at a second location to form a second occlusion, and wherein the first occlusion is spaced away from the second occlusion. 
     
     
         10 . The method of  claim 9 , wherein the method further comprises resecting a liver tissue of a patient in a space between the first location and the second location. 
     
     
         11 . A method for occluding a body lumen, the method comprising:
 inserting an accessory device into a body lumen;   delivering an embolic occlusion device over the accessory device, the embolic occlusion device comprising:
 a catheter including first and second lumens extending therein; and 
 a balloon disposed along a distal portion of the catheter; 
   expanding the balloon via the first catheter lumen such that at least a portion of the distal portion of the catheter rotates to a position adjacent a first target site within the body lumen;   delivering an embolic material into the body lumen through the second catheter lumen to form a first occlusion at the first target site;   deflating the balloon;   rotating the embolic occlusion device such that the embolic material may be injected to form a second occlusion at a second target site different from the first target site.   
     
     
         12 . The method of  claim 11 , wherein the balloon is eccentrically disposed on the distal portion of the catheter. 
     
     
         13 . The method of  claim 12 , wherein the balloon has a first wall portion having a first thickness and a second wall portion having a second wall thickness, the second wall thickness being greater than the first wall thickness. 
     
     
         14 . The method of  claim 13 , wherein the inflating the balloon includes inflating the first wall portion at a greater rate than the second wall portion, and wherein inflating the second wall portion at a greater rate forms a curve in the distal portion of the catheter. 
     
     
         15 . The method of  claim 11 , wherein the embolic material is selected from the group consisting of embolic gels, embolic particles, embolic coils, and combinations thereof. 
     
     
         16 . The method of  claim 11 , wherein the embolic material comprises embolic particles. 
     
     
         17 . The method of  claim 11 , wherein the embolic material comprises an embolic gel. 
     
     
         18 . The method of  claim 11 , wherein the body lumen comprises one or more branches of the portal vein. 
     
     
         19 . The method of  claim 11 , further comprising delivering embolic material at a second location to form a second occlusion, and wherein the first occlusion is spaced away from the second occlusion. 
     
     
         20 . A medical device for delivering embolic material, comprising:
 a tubular member having a proximal portion, a distal portion and a lumen extending therein; and   an inflatable member disposed on the distal portion of the tubular member;   wherein the inflatable member is configured to substantially align at least a portion of the tubular member along a longitudinal axis of a body lumen;   wherein the lumen of the tubular member is configured to deliver an embolic material into the body lumen to form a first occlusion at a first location;   wherein the tubular member is configured to rotate within the body lumen such that the embolic material may be injected in a second direction different from the first direction.