An implantable medical device, for implantation in a mammal knee joint, comprising an artificial contacting surface adapted to replace at least one contacting surface of the knee joint and to be lubricated when implanted in said joint. The medical device further comprises a reservoir comprising a movable wall portion defining the volume of the reservoir, at least one inlet adapted to receive a lubricating fluid from the reservoir, at least one channel at least partly integrated in said artificial contacting surface, wherein the channel is fluidly connected with said at least one inlet for distributing said lubricating fluid to the surface of said artificial contacting surface. The medical device further comprises an operation device adapted to non-invasively transport said lubricating fluid from said reservoir to said artificial contacting surface, and an implantable 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.

Techniques and systems for distracting a spinal disc space and supporting adjacent vertebrae are provided. Trial instruments are insertable into the disc space to determine a desired disc space height and to select a corresponding implant. Implants can be also be self-distracting and the implant providing the desired disc space height can be implanted in the spinal disc space.

A device for containing bone graft material comprises a body including an inner sleeve extending longitudinally from a proximal end to a distal end and an outer sleeve surrounding the inner sleeve and extending longitudinally from a proximal end to a distal end such that a bone graft collecting space is formed therebetween.

The invention relates to an intervertebral disk prosthesis (10), comprising a caudal plate (20), a cranial plate (30), and an elastic core (40) formed between the caudal plate (20) and the cranial plate (30), wherein the caudal plate (20) has a cavity (25) on the side (21) facing the cranial plate (30), wherein the core (40) is integrally connected to the cavity (25) in the caudal plate (20).

A fusion cage has a first component that defines an outside surface that is configured to engage a vertebral endplate, and an interior surface. The fusion cage has a second component that defines first and second opposed surfaces. One of the first and second opposed surfaces can mate with the interior surface of the first component. The fusion cage can include vertical and lateral throughholes adapted to enhance fusion.

A medical device for treating hip joint osteoarthritis by providing a joint surface is provided. The medical device comprises at least two artificial hip joint surface parts, wherein said at least two artificial hip joint surface parts are adapted to be connected to each other to form an artificial hip joint surface during an operation. Furthermore a method of treating a hip joint of a human patient by providing said the medical device is provided. The hip joint comprising a caput femur and an acetabulum, the method comprises the steps of: cutting the skin of said human patient, dissecting an area of the pelvic bone on the opposite side from said acetabulum, creating a hole in said dissected area, said hole passing through said pelvic bone and into said hip joint of said human patient, and providing said medical device to said hip joint, through said hole in said pelvic bone of said human patient.

A device for containing bone graft material comprises a body including an inner sleeve extending longitudinally from a proximal end to a distal end and an outer sleeve surrounding the inner sleeve and extending longitudinally from a proximal end to a distal end such that a bone graft collecting space is formed therebetween.

A process for introducing a stabilizing element into a vertebral column, in which the stabilizing element is introduced in such a manner that the stabilizing element connects two adjacent vertebral bodies to one another.

A fusion cage has a first component that defines an outside surface that is configured to engage a vertebral endplate, and an interior surface. The fusion cage has a second component that defines first and second opposed surfaces. One of the first and second opposed surfaces can mate with the interior surface of the first component. The fusion cage can include vertical and lateral throughholes adapted to enhance fusion.

A medical device for treating hip joint osteoarthritis by providing a joint surface is provided. The medical device has at least two artificial hip joint surface parts adapted to be connected to each other to form an artificial hip joint surface during an operation. A method of treating a hip joint of a human patient by providing the medical device is also provided. The method includes cutting the skin of the human patient, dissecting an area of the pelvic bone on the opposite side from the acetabulum, creating a hole in the dissected area passing through the pelvic bone and into said hip joint and providing the medical device to the hip joint, through the hole in the pelvic.