A surgical apparatus includes a surgical device, configured to be manipulated by a user to perform a procedure on a patient, and a computer system. The computer system is programmed to implement control parameters for controlling the surgical device to provide at least one of haptic guidance to the user and a limit on user manipulation of the surgical device, based on a relationship between an anatomy of the patient and at least one of a position, an orientation, a velocity, and an acceleration of a portion of the surgical device, and to adjust the control parameters in response to movement of the anatomy during the procedure.

Haptic guidance system and method

Systems and methods for joint replacement are provided. The systems and methods include a surgical orientation device and at least one orthopedic fixture. The surgical orientation device and orthopedic fixtures can be used to locate the orientation of an axis in the body, to adjust an orientation of a cutting plane or planes along a bony surface, to distract a joint, or to otherwise assist in an orthopedic procedure or procedures.

Systems and methods for joint replacement

A method for controlling a surgical device is provided. The method includes manipulating the surgical device to perform a procedure on a patient; determining whether a relationship between an anatomy of the patient and a position, an orientation, a velocity, and/or an acceleration of a surgical tool of the surgical device corresponds to a desired relationship between the anatomy and the position, the orientation, the velocity, and/or the acceleration of the surgical tool; and imposing a constraint on the surgical device if the relationship does not correspond to the desired relationship and/or a detection device is unable to detect a position of the anatomy and/or the position of the surgical tool.

Method and apparatus for controlling a haptic device

A method and system for guiding at least a portion of a surgical device to a desired position between two tissues in a patient's body involves coupling a guidewire to the device and pulling the distal end of the guidewire to guide at least a portion of the surgical device to a desired position between the two tissues. The surgical device generally includes one or more guidewire coupling members and may comprise a tissue access device. A system may include a guidewire and a surgical device. In some embodiments, a guidewire, a tissue access device, and one or more additional devices to use with the access device may be provided. Methods, devices and systems may be used in open, less-invasive or percutaneous surgical procedures, in various embodiments.

Tissue access guidewire system and method

Guidewire exchange systems, devices and methods, for positioning and actuating surgical devices in a desired position between two tissues in a patient's body are described A guidewire may be coupled to a surgical device for positioning and actuating (eg, urging against a target tissue) The guidewire may be exchanged between different surgical devices during the same procedure, and the guidewire and surgical devices may be releaseably or permanently coupled The surgical device generally includes one or more guidewire coupling members A system may include a guidewire and a surgical device having a guidewire coupling member Methods, devices and systems may be used in open, less-invasive or percutaneous surgical procedures

Guidewire exchange systems to treat spinal stenosis

A knee replacement system provides a knee implant that may be used to more accurately replicate the diameter of a natural knee. In one embodiment, a patellofemoral component is connected to the posterior portion of a condylar component by screws that pass through the femur allowing the patellofemoral component and the condylar component to be torqued against opposing sides of the femur. Two additional screws are used to connect the patellofemoral component town anterior portion of the condylar component. A gap may be left between the patellofemoral component and the anterior portion of the condylar component if needed to provide precise replication of the diameter of the natural knee from the patellofemoral component to the condylar component.

Systems and methods for compartmental replacement in a knee

A system improves the design of artificial implant components for use in joint replacement surgeries. The system includes an anthropometric static image data analyzer, an implant model data generator, a kinematic model simulator, and a dynamic response data analyzer. The implant model data generator may also use image data of a joint in motion for modification of the implant model data used in the kinematic simulation. Dynamic response data generated by the kinematic model simulation is analyzed by the dynamic response data analyzer to generate differential data that may be used to further refine the implant model data.

System and method for designing a physiometric implant system

A knee prosthetic system includes a femoral component, a fixed tibial bearing component, a mobile tibial bearing component and an integrated or common tibial base component. The same tibial base component can be used with either the fixed tibial bearing component or the mobile tibial bearing component. The fixed bearing component and tibial base component have mating anti-rotation features. One embodiment of the mobile bearing component does not engage the anti-rotation feature of the tibial base component. Another embodiment engages the anti-rotation feature to allow for limited rotation.

Modular fixed and mobile bearing prosthesis system

A guide system for resecting a bone through incisions of the type utilized for arthroscopic procedures is provided. The guide system comprises a first alignment pin, a second alignment pin and a wire saw. The first alignment pin is configured to be inserted through a first incision into a bone in a first orientation. The second alignment pin is configured to inserted through a second incision into the bone in a second orientation. The first alignment pin and the second alignment pin are configured and oriented to define a resection plane of reference through which the bone is to be resected and the wire saw is configured to be inserted through the first and second incisions to be guided by the first and second alignment pins while being moved to resect the bone.

Method and apparatus for arthroscopic bone preparation

An improved sliding patellar replacement component is provided. Various combinations of translational and/or rotational degrees of freedom are provided by boss and channel configurations between the base subcomponent of the replacement component and the articulating subcomponent of the patellar replacement component. In one embodiment, spin about one axis is restricted by a spin stop that may be movable to allow for ease of assembly. Alternatively, the boss and channel are configured to function as a spin stop. Assembly of the patellar replacement component in one embodiment is simplified by the provision of a boss assembly region.

Adam Hayden

Papers

Systems and methods for compartmental replacement in a knee

System and method for designing a physiometric implant system

Modular fixed and mobile bearing prosthesis system

Method and apparatus for arthroscopic bone preparation

Sliding patellar prosthesis