Cannula ring and related systems and methods

Abstract

Cannula devices and related methods are provided. In accordance with one embodiment, a cannula ring includes a body portion having a substantially cylindrical member defining an opening therethrough. A plurality of anchor arms coupled with the body portion and configured to be positioned in a first, collapsed state and a second, deployed state, wherein the anchor arms each include a free end that is radially displaced from the body portion while in the second, deployed state relative to their positions while in the first, collapsed state. Suture rings and other associated structures and devices are also described.

1 .- 8 . (canceled) 
     
     
         9 . A cannula device comprising:
 a first structure having a convex gimbaled surface;   a suture ring having a body portion and a ring portion, the body portion having a concave gimbaled surface coupled with the convex gimbaled surface of the first structure, wherein the suture ring may pivot in at least two planes relative to the first structure.   
     
     
         10 . The cannula device of  claim 9 , wherein the first structure comprises a conduit. 
     
     
         11 . The cannula device of  claim 9 , wherein the first structure comprises a blood pump. 
     
     
         12 . The cannula device of  claim 9 , wherein the first structure comprises a cannula ring. 
     
     
         13 . A cannula device comprising:
 a first structure;   a suture ring having a body portion, a ring portion and an locking mechanism, wherein the suture ring may coupled with the first structure and be selectively locked at a plurality of positions relative to the first structure.   
     
     
         14 . A cannula device comprising:
 a first structure;   a suture ring coupled with the first structure, the first structure having an opening formed therein that is eccentrically located relative to a perimeter defined by the suture ring.   
     
     
         15 . The cannula device of  claim 14 , wherein the perimeter is an outer perimeter of the suture ring. 
     
     
         16 . The cannula device of  claim 14 , wherein the perimeter is an inner perimeter of the suture ring. 
     
     
         17 .- 20 . (canceled)