Methods, devices and systems for computer-assisted robotic surgery

Abstract

Methods, devices and systems for the planning and execution of computer-assisted robotic surgery are provided. The methods include methods to collect information about bones and prostheses, use the information to create virtual models and simulations, optionally receive input based on user discretion in generating the cut file, and to generate instruction for the execution of cut paths during the surgery. The system and devices include computers and peripherals and set-ups to link the components together into functional systems.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application is a continuation of U.S. Utility patent application Ser. No. 14 / 417,446 filed Jan. 26, 2015, now U.S. Pat. No. ______ that in turn is a United States National Phase of PCT Application Number PCT / US14 / 25458 filed Mar. 14, 2014 that in turn claims priority of Provisional Patent Application Ser. No. 61 / 780,878 filed Mar. 13, 2013, the contents of which are incorporated herein by reference.FIELD OF THE INVENTION[0002]This invention generally relates to the orthopedic prosthesis implantation surgery, and more specifically to a new and useful method and system for planning and executing the implantation surgery of an orthopedic prosthesis in bone.BACKGROUND OF THE INVENTION[0003]Throughout a lifetime, bones and joints become damaged and worn through normal use and traumatic events. This degradation of the joints involving the articular cartilage and subchondral bone is known as arthritis and results in symptoms including joint ...

AI Technical Summary

Benefits of technology

The patent text describes methods, devices, and systems for computer-assisted robotic surgery. These methods involve collecting information about bones and prostheses, creating virtual models and simulations, and receiving input from the user to create a cut file. The system and devices link together computers and peripherals to create functional systems. The technical effects include improved precision, accuracy, and efficiency in robotic surgery.

Problems solved by technology

Throughout a lifetime, bones and joints become damaged and worn through normal use and traumatic events.

This degradation of the joints involving the articular cartilage and subchondral bone is known as arthritis and results in symptoms including joint pain, tenderness, stiffness, and potentially locking.

A slight misalignment may result in poor wear characteristics, reduced functionality, and a decreased longevity.

However, the level of mechanical control was determined by the limitations of human skill and dexterity.

Unfortunately, in part due to the boundaries of computer technology at the time, the scope of assistance that can be provided by the computer may be restricted to the execution of a cut file with cut parameters that are based on limited input, for instance input that is limited to the dimensions of a cutting cavity correlating to a particular prosthesis, and its position in a bone model.

Examples of the consequences thereof are the fact that in the currently available technology a pre-existing set of cut files, based on the design of the prosthesis, may actually cause cutting interference with soft tissue, or may require cutting unnecessary areas using robotic assistance when the physician may prefer to cut certain regions without assistance.

Another example is the inability for the physicians to enter preferences based on personal experience, or based on patient-specific factors like age, life expectancy, body weight and expected physical activity.

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