A robot-aided knee arthroplasty system includes a robotic device and a controller communicable with the robotic device. The controller is configured to control the robotic device to apply a force configured to increase a gap distance between a femur and a tibia of a knee joint and collect measurements of the gap distance between the femur and the tibia as the robotic device applies the force.

A sterile pressure pad assembly system, kit and method uses a cage assembly comprising an enclosure and a pad assembly configured as a generally rectangular pad disposed adjacent the patient's limb near the joint to be extended and/or distended. The pad may be affixed by adhesive to the outer surface of an arcuate side and formed from suitable foam and cell structure materials that can be sterilized such as, for example, polyurethane-based foam. The enclosure of the cage assembly is configured with one or more ridges to sufficiently optimize a material strength to the arcuate side of the enclosure so as to not crush under pressure from the surgical distractor unit and/or the weight of the patient's limb of the patient when the sterile cage assembly and pad support a limb of a patient on a support bar as a surgical distractor unit positions the pad in abutment with a popliteal area of a patient's knee joint during a medical procedure.

A method of operating a joint positioner includes securing a first holder of the joint positioner to a first portion of a limb and a second holder of the joint positioner to a second portion of the limb, manually articulating a mechanical arm extending between the first holder and the second holder to a position causing tension in soft tissue of the limb, and switching between a first mode in which arm segments of the mechanical arm are manually repositionable and a second mode in which the mechanical arm is fixed in the position.

Systems and methods may be used to perform robot-aided surgery. A system may include a robotic controller to monitor a position and orientation of an end effector coupled to an end of a robotic arm. The robotic controller may apply a force to a bone using the end effector, such as via a soft tissue balancing component. The robotic controller may determine soft tissue balance using information from a tracking system, such as a position of a first tracker affixed to the bone. The soft tissue balance may be output, such as to a display device.

Systems and methods may be used to perform robot-aided surgery. A system may include a robotic controller to monitor a position and orientation of an end effector coupled to an end of a robotic arm. The robotic controller may apply a force to a bone using the end effector, such as via a soft tissue balancing component. The robotic controller may determine soft tissue balance using information from a tracking system, such as a position of a first tracker affixed to the bone. The soft tissue balance may be output, such as to a display device.

Surgical systems and methods for assisting with procedures involving a subject's limb, such as a leg associated with a knee or hip joint. One or more robotic arms move and position the limb to manipulate the joint. The robotic arm(s) can be controlled based on a sensed joint gap or desired joint gap. An arthroscope can capture imagery of the joint and a tracking system can track poses of the arthroscope, the robotic arm(s), and the limb.

This invention relates to a patient positioner and, more specifically, to an articulated armature configured to position a leg and knee at a precise angle, as needed in unicompartmental knee arthroplasty surgery. The positioner is adapted to connect to either side rail of a support table, without changing orientation, via drop pins disposed in a socket clamp. The socket clamp may couple to a ball coupled to a first arm and elbow joint, which in turn may couple to a second arm and wrist joint, which in turn may couple to a pad assembly adapted to hold the patient's thigh, thereby positioning the lower leg to dangle over the side or end of an operating table. The positioner is adapted for ease of disassembly, sterilization, and reassembly. The invention may be exchanged for a total knee replacement positioner without moving the patient or breaking the sterile field.

This invention relates to a patient positioner and, more specifically, to an articulated armature configured to position a leg and knee at a precise angle, as needed in unicompartmental knee arthroplasty surgery. The positioner is adapted to connect to either side rail of a support table, without changing orientation, via drop pins disposed in a socket clamp. The socket clamp may couple to a ball coupled to a first arm and elbow joint, which in turn may couple to a second arm and wrist joint, which in turn may couple to a pad assembly adapted to hold the patient's thigh, thereby positioning the lower leg to dangle over the side or end of an operating table. The positioner is adapted for ease of disassembly, sterilization, and reassembly. The invention may be exchanged for a total knee replacement positioner without moving the patient or breaking the sterile field.

A drape is provided. The drape may support positioning a patient for a surgical procedure and may include one or more hard points. The hard points may be coupled to a medical tool mount disposed in a working space and may releasably grip a medical tool in a sterile space to form a sterile barrier between the medical tool mount and the medical tool.

A positioning system for a surgical procedure is provided. The positioning system may include a surgery table, a spar base, and a spar extending from the spar base to support at least one leg of a patient. The spar base may be positioned beneath a platform of the surgery table and may translate a distance along the surgery in a direction from the distal end to the proximal end of the surgery table.