Patent ID: 9675460
Date: 2017-06-13
CPC Classifications: A61B,A61F,A61L,A61M

Claim:
1. An implantable medical device, for implantation in a mammal joint having an acetabulum surface, comprising: an artificial concave acetabulum surface, being a bowl shaped surface adapted to replace a surface of the acetabulum surface, wherein said artificial concave acetabulum surface is adapted to be lubricated, when implanted in said joint, a reservoir comprising a pumping device and a movable wall portion for changing the volume of the reservoir, for non-invasively transporting a lubricating fluid from said reservoir to said artificial acetabulum surface for lubricating said artificial acetabulum surface, at least one inlet adapted to receive said lubricating fluid from the reservoir, at least one channel at least partly integrated in said artificial concave acetabulum surface, wherein the channel is in fluid connection with said at least one inlet for distributing said lubricating fluid to the surface of said artificial concave surface, an implantable subcutaneous injection port for refilling said reservoir, wherein the movable wall portion is moved when the reservoir is refilled, such that the volume of the reservoir is increased, and wherein the implantable injection port is adapted to allow, by injection into the injection port, preloading of said reservoir with pressurized lubricating fluid, and an interconnecting part for connecting the reservoir and said artificial concave acetabulum surface.