# US 11,109,777 B2 · Kinetic assessment and alignment of the muscular-skeletal system and method therefor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,109,777 B2 - Document ID: US11109777B2 - Status: Granted - Kind: B2 - Application number: 16/411,348 - Filed: 2019-05-14 - Published: 2019-08-29 - Granted: 2021-09-07 - Earliest claimed: 2013-03-18 - Assignees: Orthosensor Inc. - Applicants: Orthosensor Inc. - Inventors: Marc Stein; Martin Roche - Web page: https://patentgrep.com/patent/US11109777B2 ## CPC - A61B 5/103: Measuring devices for testing the shape, pattern, {colour,} size or movement of the body or parts thereof, for diagnostic purposes (measuring instruments specially adapted for dentistry A61C19/04) - A61B 5/1036: {Measuring load distribution, e.g. podologic studies} - A61B 5/1072: {measuring distances on the body, e.g. measuring length, height or thickness (A61B5/1076 takes precedence)} - A61B 5/1121: {Determining geometric values, e.g. centre of rotation or angular range of movement} - A61B 5/45: {For evaluating or diagnosing the musculoskeletal system or teeth (A61B5/1036, A61B5/1074, A61B7/006 take precedence)} - A61B 5/4528: {Joints (A61B5/4533, A61B5/4538 take precedence)} - A61B 5/4571: {Evaluating the hip} - A61B 5/4585: {Evaluating the knee} - A61B 5/4851: {Prosthesis assessment or monitoring} - A61B 5/686: {Permanently implanted devices, e.g. pacemakers, other stimulators, biochips (A61B5/6861 takes precedence)} - A61B 17/154: {for preparing bone for knee prosthesis} - A61B 17/155: {Cutting femur} - A61B 17/157: {Cutting tibia} - A61B 17/1764: {for the knee} - A61B 34/10: Computer-aided planning, simulation or modelling of surgical operations - A61B 34/20: Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis - A61B 34/25: {User interfaces for surgical systems} - A61B 90/37: {Surgical systems with images on a monitor during operation} - A61F 2/3836: {Special connection between upper and lower leg, e.g. constrained} - A61F 2/461: {of knees} - A61F 2/4657: {Measuring instruments used for implanting artificial joints (for surgical instruments A61B90/06)} - A61F 2/4684: {Trial or dummy prostheses} - G06F 3/0481: based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance - A61B 5/4887: {Locating particular structures in or on the body} - A61B 2034/102: {Modelling of surgical devices, implants or prosthesis} - A61B 2034/104: {Modelling the effect of the tool, e.g. the effect of an implanted prosthesis or for predicting the effect of ablation or burring} - A61B 2034/105: {Modelling of the patient, e.g. for ligaments or bones} - A61F 2/38: for elbows or knees - A61F 2002/4658: {for measuring dimensions, e.g. length} - A61F 2002/4668: {for measuring angles} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C) - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract A system is disclosed herein for providing a kinetic assessment and preparation of a prosthetic joint comprising one or more prosthetic components. The system comprises a prosthetic component including sensors and circuitry configured to measure load, position of load, and joint alignment. The system further includes a remote system for receiving, processing, and displaying quantitative measurements from the sensors. The kinetic assessment measures joint alignment under loading that will be similar to that of a final joint installation. The kinetic assessment can use trial or permanent prosthetic components. Furthermore, adjustments can be made to the applied load magnitude, position of load, and joint alignment by various means to fine-tune an installation. The kinetic assessment increases both performance and reliability of the installed joint by reducing error that is introduced by elements that load or modify the joint dynamics not taken into account by prior assessment methods. ## Claims ### Claim 1 An orthopedic measurement system for kinetic assessment comprising: a device having a surface configured to couple to a joint of a musculoskeletal system comprising one or more sensors configured to measure one or more parameters; a computer configured to receive measurement data from one or more sensors; a display coupled to the computer wherein the display includes a graphical user interface, wherein a memory and one or more processors of the computer are configured to execute one or more programs stored in the memory, wherein the graphical user interface includes a graphical depiction of a portion of a surface of the device that is configured to couple to the joint, wherein a contact point is displayed on the graphical depiction of the portion of the surface of the device, wherein the computer is configured to use the measurement data to calculate a contact point location on the graphical depiction of the portion of the surface of the device, and wherein the contact point is configured to move in real-time corresponding to a change in the measurement data. ### Claim 2 (depends on 1) The system of claim 1 wherein the display is configured to indicate a predetermined area range on the graphical depiction of the portion of the surface of the device and wherein the computer is configured to use the measurement data to calculate if the contact point is within or outside the predetermined area range. ### Claim 3 (depends on 1) The system of claim 1 wherein the device comprises: an articular surface configured to support movement of the joint; and a plurality of load sensors underlying the articular surface, wherein a kinetic assessment results in at one least change performed under musculoskeletal loading that produces a measurement change from the plurality of load sensors and is reflected in movement of the contact point on the display. ### Claim 4 (depends on 3) The system of claim 3 wherein the computer is configured to receive load measurement data from the plurality of load sensors and wherein the computer is configured to use the load measurement data from the plurality of load sensors to calculate the contact point on the display. ### Claim 5 (depends on 4) The system of claim 4 wherein the display is configured to display movement of the contact point on the portion of the surface of the device on the display as a result of changes in measurement data due to musculoskeletal movement, device movement, tissue tensioning, bone cutting, or device shimming. ### Claim 6 (depends on 1) The system of claim 1 wherein the device is configured to be rotated from a reference position, wherein an amount of rotation of the device is measured and reported on the display, and wherein a rotation of the device can produce movement of the contact point. ### Claim 7 (depends on 1) The system of claim 1 wherein the computer is configured to calculate alignment of the joint from the measurement data, wherein the alignment is calculated from a predetermined movement of the joint, and wherein the display is configured to display one of a bone offset relative to a mechanical axis or a total offset relative to the mechanical axis generated from the measurement data. ### Claim 8 (depends on 1) The system of claim 1 wherein the graphical user interface includes a graphical depiction of at least a portion of the joint, wherein the computer is configured to track movement of the joint using the measurement data, and wherein the graphical depiction of the at least a portion of the joint is configured to move on the display corresponding to actual movement of the joint. ### Claim 9 (depends on 1) The system of claim 1 wherein the device is a prosthetic component, a trialing device, or a tool configured to be inserted into the joint of the musculoskeletal system. ### Claim 10 An orthopedic measurement system for kinetic assessment comprising: a device having a surface configured to couple to a bone of a musculoskeletal system comprising one or more sensors configured to measure one or more parameters; a computer configured to receive measurement data from the one or more sensors; a display coupled to the computer wherein the display includes a graphical user interface, wherein a memory and one or more processors of the computer are configured to execute one or more programs stored in the memory, wherein the graphical user interface includes a graphical depiction of a portion of a surface of the device that is configured to couple to the bone, wherein a contact point is displayed on the graphical depiction of the portion of the surface of the device, wherein the computer is configured to use the measurement data to calculate a contact point location on the graphical depiction of the portion of the surface of the device, and wherein the contact point is configured to move in real-time corresponding to a change in the measurement data. ### Claim 11 (depends on 10) The system of claim 10 wherein a plurality of load sensors underlie the surface of the device, wherein a kinetic assessment results in at one least change performed under musculoskeletal loading that produces a measurement change from the plurality of load sensors and is reflected in movement of the contact point on the display. ### Claim 12 (depends on 10) The system of claim 10 wherein the computer is configured to calculate alignment of the musculoskeletal system from the measurement data, wherein the alignment is calculated from a predetermined movement of the bone, and wherein the display is configured to display a bone. ### Claim 13 (depends on 10) The system of claim 10 wherein the display is configured to display movement of the contact point on the portion of the surface of the device on the display as a result of changes in measurement data due to musculoskeletal movement, device movement, tissue tensioning, bone cutting, or device shimming. ### Claim 14 (depends on 10) The system of claim 10 wherein the device is configured to be rotated, wherein the computer is configured to calculate rotation of the device from a reference position from the measurement data, and wherein the display is configured to indicate degrees of rotation from the reference position. ### Claim 15 (depends on 10) The system of claim 10 wherein the device is a prosthetic component, a trialing device, or a tool configured to be coupled to the bone of the musculoskeletal system. ### Claim 16 An orthopedic measurement system for kinetic assessment comprising: a device having a surface configured to be surgically inserted into a musculoskeletal system comprising one or more sensors configured to measure one or more parameters; a computer configured to receive measurement data from the one or more sensors; a display coupled to the computer wherein the display includes a graphical user interface, wherein a memory and one or more processors of the computer are configured to execute one or more programs stored in the memory, wherein the graphical user interface includes a graphical depiction of a portion of a surface of the device that is configured to couple to the bone, wherein a contact point is displayed on the graphical depiction of the portion of the surface of the device, wherein the computer is configured to use the measurement data to calculate a contact point location on the graphical depiction of the portion of the surface of the device, and wherein the contact point is configured to move in real-time corresponding to a change in the measurement data. ### Claim 17 (depends on 16) The system of claim 16 wherein the display is configured to indicate a predetermined area range on the graphical depiction of the portion of the surface of the device and wherein the computer is configured to use the measurement data to calculate if the contact point is within or outside the predetermined area range. ### Claim 18 (depends on 16) The system of claim 16 wherein the graphical user interface includes a graphical depiction of at least a portion of the musculoskeletal system, wherein the computer is configured to track movement of the musculoskeletal system using the measurement data, and wherein the graphical depiction of the at least a portion of the musculoskeletal system is configured to move on the display corresponding to actual movement of the musculoskeletal system. ### Claim 19 (depends on 16) The system of claim 16 wherein the device comprises: an articular surface configured to support movement of the musculoskeletal system; and a plurality of load sensors underlying the articular surface, wherein a kinetic assessment results in at one least change performed under musculoskeletal loading that produces a measurement change from the plurality of load sensors and is reflected in movement of the contact point on the display. ### Claim 20 (depends on 16) The system of claim 16 wherein the device is a prosthetic component, a trialing device, or a tool configured to be coupled to the musculoskeletal system.