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.

A set of surgical instruments for an artificial hip joint implant and, more specifically, a set of improved surgical instruments, can be used in direct anterior approach hip replacement surgery and are capable of minimizing damage, such as muscle damage, which may arise during surgery, by resolving problems that existing surgical instruments possess.

An implant for an artificial hip joint and, more specifically, a dual mobility acetabular cup assembly for an artificial hip joint is configured to have improved locking mechanism between a liner and a shell and improved resistance to micromotion and to guide the liner into the shell with proper orientation by providing stable liner-shell fastening structure to the acetabular cup assembly.

A surgical system for positioning a prosthetic component includes a robotic arm and a surgical tool having an end effector configured to be coupled to the robotic arm. The system further includes a controller programmed to generate control signals, based on a planned pose of the prosthetic component, that cause the robotic arm to allow movement of the surgical tool in at least one degree of freedom and to constrain movement of the surgical tool in other degrees of freedom, wherein the controller is programmed to generate control signals that cause the robotic arm to maintain the constraint as the prosthetic component is implanted on the anatomy.

A surgical system includes a robotic arm, a straight end effector configured to be coupled to the robotic arm, an offset end effector configured to be coupled to the robotic arm, and a controller configured to control the robotic arm using first control logic when the straight end effector is coupled to the robotic arm and second control logic when the offset end effector is coupled to the robotic arm.

A medical device for implantation in a hip joint of a human patient is provided. The natural hip joint having a ball shaped caput femur as the proximal part of the femoral bone with a convex hip joint surface towards the centre of the hip joint and a bowl shaped acetabulum as part of the pelvic bone with a concave hip joint surface towards the centre of the hip joint. The caput femur has a centrally placed longitudinal extension, extending through the center of the caput and collum femur, aligned with the collum femur, defined as the caput and collum femur center axis. The medical device comprising; an artificial acetabulum, comprising a concave surface towards the centre of the hip joint. The artificial concave acetabulum is adapted to, when implanted, be fixated to the femoral bone of the human patient, and be in movable connection with an artificial caput femur fixated to the pelvic bone of the patient.

The present invention relates generally to implants used in medical procedures such as bone fixation or fusion. More specifically, this application relates to fenestrated implants used in bone fixation or fusion.

A concentric tube drilling robot device comprises an outer tube including a proximal end, a distal end, and a concentric through hole centered on a longitudinal axis extending from the proximal end to the distal end, at least one inner tube nested within the outer tube including a proximal end, a distal end, and a concentric through hole centered on the longitudinal axis, wherein the at least one nested inner tube is concentric with the outer tube, and a flexible drive shaft including a proximal end, a distal end and a tool tip positioned at the distal end, wherein the flexible drive shaft extends through the concentric through hole of the at least one inner tube, and is configured to provide a rotational torque to the tool tip. A drilling robot system and drilling method are also disclosed.

A robotic system includes an articulated member comprising a joint and configured to be manually moved by a user to facilitate performance of a task and a controller. The controller is programmed to determine whether an angular position of the joint is moved within an angular range of motion defined by a braking region, generate a force feedback signal compensating for a gravitational load on the articulated member to inhibit manual movement in space of at least a portion of the articulated member when the angular position of the joint is in the braking region, and maintain the force feedback signal until a user disengages the force feedback.

The present invention relates generally to implants and tools for the fixation or fusion of joints or bone segments. These tools include tissue dilators and protectors. Other tools include broaches used to shape bores in bone. The tools can also include a system for removing an implant from bone. Implants can include assemblies of one or more implant structures that make possible the achievement of diverse interventions involving the fusion and/or stabilization of lumbar and sacral vertebra in a non-invasive manner, with minimal incision, and without the necessitating the removing the intervertebral disc. Implants for fusing both sacroiliac joints of a patient include a long implant that extends across both sacroiliac joints.