Patent ID: 8974462
Filing Date: 2015-03-10
Classification: A61B,A61F,A61M

Abstract:
1. A method for distracting a femoral head from an acetabulum of a hip joint, the method comprising: inserting a first catheter having a first balloon into a central compartment of the hip joint between the femoral head and the acetabulum, the first balloon having a first size; inflating the first balloon of the first catheter to distract the femoral head from the acetabulum a first distance; using the first balloon of the first catheter to maintain distraction between the femoral head and the acetabulum by the first distance, and advancing a second catheter over a shaft of the first catheter so that a second balloon on the second catheter is disposed in the first distance between the distracted femoral head and the acetabulum, wherein the second balloon is placed in the acetabular fossa of the acetabulum, the acetabular fossa being a recessed region in the joint surface of the acetabulum, the second balloon having a second size, wherein the second size is greater than the first size; and inflating the second balloon on the second catheter to further distract the femoral head from the acetabulum a second distance, wherein the second distance is greater than the first distance.