A method of evaluating a human knee joint including a femur bone, a tibia bone, and ligaments. The method includes: inserting into the joint a tensioner-balancer that includes at least one force sensor; providing an electronic receiving device; moving the knee joint through at least a portion of its range of motion; using the electronic receiving device to collect data from the at least one force sensor; processing the collected force data to produce a digital geometric model of the knee joint, wherein the data includes: a medial spline representing a locus of points of contact of a medial condyle of the femur F with the tensioner-balancer, over a range of knee flexion angles; and a lateral spline representing the locus of points of contact of the femur F with the tensioner-balancer, over a range of knee flexion angles; and storing the digital geometric model for further use.

A number of improvements are provided relating to computer aided surgery. The improvement relates to both the methods used during computer aided surgery and the devices used during such procedures. Some of the improvement relate to controlling the selection of which data to display during a procedure and/or how the data is displayed to aid the surgeon. Other improvements relate to the structure of the tools used during a procedure and how the tools can be controlled automatically to improve the efficiency of the procedure. Still other improvements relate to methods of providing feedback during a procedure to improve either the efficiency or quality, or both, for a procedure.

A removable wedge for high tibial osteotomy surgery, comprising: a truncated wedge configured to provide a patient specific correction to the weight bearing axis based on 3D data for that patient’s tibia, femur and/or fibula; and an anterior flange configured to locate the partial wedge in a predetermined location on the tibia of that patient. Also a method for pre-operative planning, a method of designing a wedge, a method of printing a wedge a reusable wedge and a prosthetic implant.

Medical devices and related methods for transforming bone, other tissue, or other material are disclosed herein. According to an aspect, a cutting device includes a static casing having a width of substantially a first distance. The cutting device also includes a blade working body including a first end and a second end. The first end is configured to operatively connect to a source of movement. The second end includes a cutting component. The blade working body has a width of substantially a second distance, wherein the second distance is greater than the first distance.

A surgical saw blade for being coupled to a drive hub of a surgical saw. The surgical saw blade includes an attachment portion configured to be removably coupled to the drive hub. The surgical saw blade also includes a cutting portion opposite the attachment portion that includes a plurality of teeth. Additionally, the attachment portion defines a pair of indents. The first indent and the second indent are each defined by at least one curved surface. The curved surface is radially outwardly convex.

A surgical saw and complementary blade. The blade has lock teeth that are more ductal than the cutting teeth. The saw coupling assembly has an anvil and a press. The saw coupling assembly holds the blade to the saw by compressing the saw lock teeth between the anvil and the press so as to result the coining of the lock teeth.

Packaging and methods for packaging tools having a sharp or cutting edge, such as surgical tools, in which the tool is packaged under sterile conditions. The tool may be packaged first—at least partially—and in particular with its sensitive cutting edges and working surfaces packaged in a protective package. The protective package containing at least the cutting or working surfaces of the tool may then be secured in a fixed position in an outer blister pack, which may be sealed with a sealing film.

A surgical system includes a surgical tool associated with a virtual haptic interaction point such that movement of the virtual haptic interaction point corresponds to movement of the surgical tool. The surgical system further includes a processing circuit to establish a virtual entry boundary and activate a haptic object, which constrains the surgical tool after the haptic interaction point crosses the virtual entry boundary.

An apparatus for implanting a medical implant into bone includes: an implant having at least one predetermined natural frequency; and an instrument, comprising: a housing; a coupler carried by the housing and configured to be mechanically connected to a medical implant; and a forcing mechanism carried by the housing and operable to apply a cyclic excitation force at the predetermined natural frequency.

A rotary valve includes a rotor housing having a first centrally-located aperture extending axially through the rotor housing, an inlet port, and an outlet port. The inlet port and the outlet port each extend radially and open into the first centrally-located aperture. The rotary valve further includes a rotor to be disposed within the first centrally-located aperture. The rotor includes a main body and a dwell space extending radially inwardly into the main body and circumferentially around a portion of the main body. The rotor further includes a second centrally-located aperture that extends axially through a distal end of the rotor and into the dwell space within the main body.