Large hole closure device

Abstract

A closure device and system for closing openings in tissue. After placing sutures in the tissue, the sutures are clamped by the closure device to hold the sutures in place and close the opening in the tissue.

1 . (canceled) 
     
     
         2 . The closure device of  claim 6 , wherein the first engagement mechanism includes first threads and the second engagement mechanism includes second threads. 
     
     
         3 . The closure device of  claim 6 , wherein the first engagement mechanism and the second engagement mechanism enable the inner body to rotate within the outer body to close the gap. 
     
     
         4 . The closure device of  claim 6 , wherein the first opening is non-centrically located in the outer body and wherein the second opening is non-centrically located in the inner body. 
     
     
         5 . The closure device of  claim 6 , the inner body comprises a slot on a top surface, where in the slot engages with a rotator rod to rotate the inner body. 
     
     
         6 . A closure device for closing an opening, the closure device comprising:
 an outer body having a first opening, the outer body including a first engagement mechanism;   an inner body having a second opening the inner body including a second engagement mechanism that is complementary to the first engagement mechanism, wherein the first engagement mechanism and the second engagement mechanism cooperate to close a gap between the outer body and the inner body to clamp sutures between the outer body and the inner body, wherein the outer body comprises a non-circular perimeter, the non-circular perimeter enabling the outer body to be held while the inner body rotates.   
     
     
         7 . The closure device of  claim 6 , wherein the first opening and the second opening receive sutures and wherein rotation of the inner body pulls the sutures into the gap, wherein the sutures are clamped between when the inner body and the outer body are in a closed position. 
     
     
         8 . A closure system for closing an opening in tissue, the closure system comprising:
 a closure device including an inner body and an outer body, wherein the inner body and the outer body cooperate to clamp sutures used in closing the opening;   a holder tube having a distal end and a proximal end, the closure device disposed in the distal end prior to deployment; and   a rotator rod that cooperates with the inner body to clamp the sutures.   
     
     
         9 . The closure system of  claim 8 , wherein the inner body includes a first opening and the outer body includes a second opening, the first opening non-centrically located in the inner body and the second opening non-centrically located in the outer body. 
     
     
         10 . The closure system of  claim 9 , wherein the closure device comprises an engagement mechanism formed in the inner body and the outer body, wherein the engagement mechanism operates to close a gap between the inner body and the outer body after the sutures have been pulled into the gap and through the first and second openings. 
     
     
         11 . The closure system of  claim 10 , wherein the engagement mechanism includes first threads formed in an outer wall of the inner body and second threads formed in an inner wall of the outer body, the first threads engaging the second threads such that the inner body rotates within the outer body. 
     
     
         12 . The closure system of  claim 10 , the inner body further comprising a slot, wherein the rotator rod engages the slot to rotate the inner body. 
     
     
         13 . The closure system of  claim 9 , wherein the rotator rod comprises a blade attached to a distal end of the rotator rod, wherein the blade trims the sutures after the sutures are clamped between the inner body and the outer body. 
     
     
         14 . The closure system of  claim 9 , wherein the distal end of the holder tube is configured to limit rotation of the outer body and wherein the outer body includes a perimeter that fits in the distal end such to limit rotation of the outer body. 
     
     
         15 . The closure system of  claim 9 , wherein the first opening and the second opening are aligned and the sutures pass through the first opening and the second opening, wherein the sutures are pulled into the gap when the inner body rotates such that the first opening and the second opening are misaligned when the inner body and the outer body are in a closed position. 
     
     
         16 . A method for closing an opening in tissue, the method comprising:
 placing sutures in walls around the opening in the tissue;   passing the sutures through a closure device; and   closing the closure device to clamp the sutures in place to substantially close the opening in the tissue.   
     
     
         17 . The method of  claim 16 , wherein the closure device comprises an inner body and an outer body with a gap between the inner body and the outer body, further comprising passing the sutures through a first opening in the inner body and a second opening in the outer body. 
     
     
         18 . The method of  claim 17 , further comprising tightening the sutures to substantially close the opening. 
     
     
         19 . The method of claim  22 , further comprising rotating the inner body relative to the outer body to close the gap and clamp the sutures between the inner body and the outer body. 
     
     
         20 . The method of  claim 19 , further comprising trimming the sutures with a blade attached to a rotator rod used to rotate the inner body relative to the outer body.