Abstract: A navigation tracker fixation device system is provided that comprises a plate that is placed at a generally longitudinal axis of a patient's bone and having at least one hole and operable to receive a member for coupling the plate to the bone. A post is provided that is coupled to the plate and operable to extend beyond a surgical site. A tracker component may be coupled to the plate, the post or both the plate and the post, and the post enables the tracker component to be positioned within the surgical site while remaining away from an articular surface resection area of the bone. The tracker component remains within the surgical site during resection of the bone. Preferably, the surgical tracking system is provided to verify bone resection or knee kinematics, without a need to remove or replace the tracker component from the surgical site, during the procedure.

Abstract: A pain relieving device for selectively applying three or more pain relieving modalities to an upper body region of a person. The modalities include acupressure and at least two other modalities selected from the group of vibration, massage, heat, traction and electric stimulation. The device further includes a controller for enabling an operator of the pain relieving device to select which two or more of the pain relieving modalities are applied to the person at any given time. The controller causes the pain relieving apparatus to automatically apply the selected modalities to the person.

Abstract: A pain relieving device includes a plurality of sources of pain relieving modalities selected from the group consisting of massage, vibration, acupressure and electric stimulation; and means for applying at least two of the modalities simultaneously to a selected point at the upper body region of a person.