Resilient arthroplasty device

Abstract

The disclosure is directed to a resilient implant for implantation into human or animal joints to act as a cushion allowing for renewed joint motion. The implant endures variable joint forces and cyclic loads while reducing pain and improving function after injury or disease to repair, reconstruct, and regenerate joint integrity. The implant is deployed in a prepared debrided joint space, secured to at least one of the joint bones and expanded in the space, molding to surrounding structures with sufficient stability to avoid extrusion or dislocation. The implant has opposing walls that move in varied directions, and an inner space filled with suitable filler to accommodate motions which mimic or approximate normal joint motion. The implant pads the damaged joint surfaces, restores cushioning immediately and may be employed to restore cartilage to normal by delivering regenerative cells.

1 . A resilient implant for the foot or ankle comprising:
 a first wall,   a second wall,   a side wall extending between the first wall and the second wall,   a plurality of chords or anchors for securing the implant to at least one bone or one ligament.   
     
     
         2 . The resilient implant of  claim 1 , wherein the implant comprises a mesh material. 
     
     
         3 . The resilient implant of  claim 1 , wherein the first wall, the second wall and the side wall define an interior portion. 
     
     
         4 . The resilient implant of  claim 3 , wherein the interior portion is inflated with a resilient material. 
     
     
         5 . The resilient implant of  claim 3 , wherein the interior portion is inflated with gas, liquid, gel, slurry, curable polymer, foam, sponge or combinations thereof. 
     
     
         6 . The resilient implant of  claim 4 , wherein the resilient material in the interior portion maintains spacing between the first wall, the second wall and the side wall. 
     
     
         7 . The resilient implant of  claim 4 , wherein the resilient material in the interior portion provides support between the first wall, the second wall and the side wall. 
     
     
         8 . The resilient implant of  claim 1 , further comprising tissue regeneration agents. 
     
     
         9 . The resilient implant of  claim 1 , wherein the first wall, the second wall and/or the side wall are multilayered. 
     
     
         10 . The resilient implant of  claim 1 , wherein the first wall, the second wall and/or the side wall have a variable resiliency. 
     
     
         11 . The resilient implant of  claim 10 , wherein the distance between the first wall and the second wall varies throughout the implant. 
     
     
         12 . The resilient implant of  claim 1 , wherein the implant has a center. 
     
     
         13 . The resilient implant of  claim 12 , wherein the center of the resilient implant's rotation will change with gait or the motion of the tibia. 
     
     
         14 . A resilient implant for the foot or ankle comprising:
 a first wall,   a second wall,   a side wall,   a plurality of chords or anchors for securing the implant to at least one bone or one ligament,   wherein one of the first wall, second wall and side wall engages the tibia.   
     
     
         15 . The resilient implant of  claim 14 , wherein one of the first wall, second wall and side wall which does not engage the tibia, engages the calcaneus. 
     
     
         16 . The resilient implant of  claim 14 , wherein the first wall, the second wall and/or the side wall have a variable resiliency. 
     
     
         17 . The resilient implant of  claim 14 , wherein the distance between the first wall and the second wall varies throughout the implant. 
     
     
         18 . The resilient implant of  claim 14 , wherein the distance between the first wall and the second wall is from 0.5 mm to 5 mm. 
     
     
         19 . The resilient implant of  claim 14 , wherein the implant has a center. 
     
     
         20 . The resilient implant of  claim 14 , wherein the center of the resilient implant's rotation changes with gait or motion of the tibia.