Occlusion clip

Abstract

An occlusion clip comprising: (a) a first elongated occlusion arm; (b) a second elongated occlusion arm; (c) a first elongated biasing arm coupled to a distal portion of the first elongated occlusion arm; (d) a second elongated biasing arm coupled to a distal portion of the second elongated occlusion arm, where a proximal portion of the first elongated biasing arm is coupled to a proximal portion of the second elongated biasing arm, where the first elongated occlusion arm extends parallel to the first elongated bias arm along a majority of its length, and where the second elongated occlusion arm extends parallel to the second elongated bias arm along a majority of its length.

What is claimed is: 
     
         1 . An occlusion clip comprising:
 a first elongated occlusion arm;   a second elongated occlusion arm;   a first elongated biasing arm coupled to a distal portion of the first elongated occlusion arm;   a second elongated biasing arm coupled to a distal portion of the second elongated occlusion arm;   wherein a proximal portion of the first elongated biasing arm is coupled to a proximal portion of the second elongated biasing arm;   wherein the first elongated occlusion arm extends parallel to the first elongated bias arm along a majority of its length; and,   wherein the second elongated occlusion arm extends parallel to the second elongated bias arm along a majority of its length.   
     
     
         2 . The occlusion clip of  claim 1 , wherein:
 the first elongated occlusion arm includes a free proximal end; and,   the second elongated occlusion arm includes a free proximal end.   
     
     
         3 . The occlusion clip of  claim 1 , wherein:
 the first elongated occlusion arm includes a first convex tissue engaging surface;   the second elongated occlusion arm includes a second convex tissue engaging surface; and,   the first convex tissue engaging surface faces the second convex tissue engaging surface.   
     
     
         4 . The occlusion clip of  claim 1 , wherein:
 a portion of the first convex tissue engaging surface lies along a first plane;   a portion of the second convex tissue engaging surface lies along a second plane; and,   the first plane and the second plane are parallel to one another.   
     
     
         5 . The occlusion clip of  claim 4 , wherein:
 no portion of the first convex tissue engaging surface extends through the second plane; and,   no portion of the first convex tissue engaging surface extends through the second plane.   
     
     
         6 . The occlusion clip of  claim 1 , wherein:
 the first elongated occlusion arm includes a first longitudinal length;   the second elongated occlusion arm includes a second longitudinal length;   more than seventy five percent of the first longitudinal length includes a first gap interposing the first elongated occlusion arm and the first elongated biasing arm; and,   more than seventy five percent of the second longitudinal length includes a second gap interposing the second elongated occlusion arm and the second elongated biasing arm.   
     
     
         7 . The occlusion clip of  claim 6 , wherein:
 the first elongated biasing arm includes a third longitudinal length;   the second elongated biasing arm includes a fourth longitudinal length;   the third longitudinal length is greater than the first longitudinal length; and,   the fourth longitudinal length is greater than the second longitudinal length.   
     
     
         8 . The occlusion clip of any of the foregoing claims, wherein the first elongated occlusion arm, the second elongated occlusion arm, the first elongated biasing arm, and the second elongated biasing arm are integral. 
     
     
         9 . The occlusion clip of  claim 1 , further comprising a fabric covering at least a portion of the occlusion clip. 
     
     
         10 . The occlusion clip of  claim 9 , wherein the fabric covering comprises a tube that concurrently circumscribes at least one of: (a) the first elongated occlusion arm and the first elongated biasing arm; and, (b) the second elongated occlusion arm and the second elongated biasing arm. 
     
     
         11 . The occlusion clip of  claim 9 , wherein the tube that concurrently circumscribes both: (a) the first elongated occlusion arm and the first elongated biasing arm; and, (b) the second elongated occlusion arm and the second elongated biasing arm. 
     
     
         12 . The occlusion clip of  claim 1 , wherein:
 the occlusion clip includes a first distal cavity interposing a distal end of the first elongated occlusion arm and a distal end of the first elongated biasing arm; and,   the occlusion clip includes a second distal cavity interposing a distal end of the second elongated occlusion arm and a distal end of the second elongated biasing arm.   
     
     
         13 . The occlusion clip of  claim 12 , wherein:
 the occlusion clip includes a first proximal cavity interposing a proximal end of the first elongated occlusion arm and a proximal section of the first elongated biasing arm;   the occlusion clip includes a second proximal cavity interposing a proximal end of the second elongated occlusion arm and a distal section of the second elongated biasing arm;   a first bridge interposes the first proximal cavity and the first distal cavity, the first bridge linking the first elongated occlusion arm and the first elongated biasing arm;   and, a second bridge interposes the second proximal cavity and the second distal cavity, the second bridge linking the second elongated occlusion arm and the second elongated biasing arm.   
     
     
         14 . An occlusion clip comprising:
 a continuous length of material interposing a pair of terminal ends, the continuous length of material including a first turn having a greater than 150 degree change of direction, a second turn having a second turn having a greater than 150 degree change of direction, a third turn having a greater than 150 degree change of direction, where the third turn occurs at a proximal end of the occlusion clip, where the first and second turns occur proximate a distal end of the occlusion clip, where the proximal end and the distal end are opposite one another, and where the pair of terminal ends occur proximate the proximal end of the occlusion clip.   
     
     
         15 . The occlusion clip of  claim 14 , wherein the first, second, and third turns lie within a common plane. 
     
     
         16 . The occlusion clip of  claim 14 , wherein at least two of the first turn, the second turn, and the third turn lie within a common plane. 
     
     
         17 . The occlusion clip of  claim 14 , wherein:
 the first turn couples a first elongated occlusion arm to a first elongated biasing arm;   the second turn couples a second elongated occlusion arm to a second elongated biasing arm;   the third turn couples the first elongated biasing arm to the second elongated biasing arm; and,   at least one of the first and second elongated occlusion arms interposes the first and second elongated biasing arms.   
     
     
         18 . A method of fabricating an occlusion clip comprising:
 cutting out an outline of an occlusion clip precursor from a sheet of material, the occlusion clip precursor including a pair of occlusion arms and a pair of biasing arms; and,   compressing the occlusion clip precursor to preload a pair of occlusion arms to form an occlusion clip.   
     
     
         19 . The method of  claim 18 , wherein the step of cutting out the outline is performed using electrical discharge machining. 
     
     
         20 . The method of  claim 19 , wherein the electrical discharge machining includes wire electrical discharge machining. 
     
     
         21 . The method of  claim 18 , further comprising wrapping the occlusion clip in a fabric. 
     
     
         22 . The method of  claim 21 , wherein the fabric comprises a fabric tube that promotes tissue ingrowth. 
     
     
         23 . The method of  claim 18 , wherein the occlusion clip comprises a continuous length of material interposing a pair of terminal ends, the continuous length of material including a first turn having a greater than 150 degree change of direction, a second turn having a second turn having a greater than 150 degree change of direction, a third turn having a greater than 150 degree change of direction, where the third turn occurs at a proximal end of the occlusion clip, where the first and second turns occur proximate a distal end of the occlusion clip, where the proximal end and the distal end are opposite one another, and where the pair of terminal ends occur proximate the proximal end of the occlusion clip.