7 results about "Total knee replacement surgery" patented technology

Systems and methods for determining the fiber strain of a subject's ligament are provided. An example method may include capturing, via an imaging device, image data comprising two or more images of the ligament. The method may include determining, by one or more processors, a fiber strain of at least a portion of the ligament by analyzing the image data using digital image correlation, and based on the fiber strain, providing, by the one or more processors, guidance for performing a guided release of the ligament. The guided release may be performed using a template having a plurality of apertures, via which one or more perforations to the ligament of the subject are made using a perforation device. When applied to total knee replacement (TKA) procedures, the guided release techniques ensure optimal balance in the knee throughout both flexion and extension movements and enhances overall functionality of the knee joint.

An orthopaedic surgical instrument system includes a sensor adapter and multiple surgical instruments. The sensor adapter includes a housing with a force sensor positioned within the housing and a sensor contact configured to transfer force to the force sensor extending from the housing. Each surgical instrument includes a sensor connector configured to receive the sensor adapter at a predetermined location relative to the surgical instrument. Each sensor adapter further includes a registering feature to engage an anatomical feature of a patient or another surgical instrument. The surgical instruments may include a shim that may be attached to a gap assessment tool or a tibial insert trial. Methods associated with the surgical instrument system are also disclosed.

Systems and methods for determining the fiber strain of a subject's ligament are provided. An example method may include capturing, via an imaging device, image data comprising two or more images of the ligament. The method may include determining, by one or more processors, a fiber strain of at least a portion of the ligament by analyzing the image data using digital image correlation, and based on the fiber strain, providing, by the one or more processors, guidance for performing a guided release of the ligament. The guided release may be performed using a template having a plurality of apertures, via which one or more perforations to the ligament of the subject are made using a perforation device. When applied to total knee replacement (TKA) procedures, the guided release techniques ensure optimal balance in the knee throughout both flexion and extension movements and enhances overall functionality of the knee joint.

A knee alignment measurement tool for use during a total knee replacement surgery may include the following main components: a sensor assembly, a display unit configured to power up, operatively control the individual sensors of the sensor assembly, and display the readings therefrom, and a flexible gooseneck cable operatively connecting the sensor assembly to the display unit. The sensor assembly may include a rigid base supporting a circuit board, a left sensor and a right sensor positioned adjacent to the left center, and a cover sealed to the rigid base to enclose the left sensor and the right sensor, wherein the cover does not abut the rigid base during the compression of the sensor assembly.

The application discloses a total knee replacement surgery image inspection method and device. A CT image of a professional DCM, i.e. a CT image with a metal rod, is read in, maximum and minimum gray scale values of the image are obtained, and more than 75% of the gray scale values are taken, which include the metal rod and some scattered points. A maximum connected threshold is used to extract and remove points other than the metal rod. At this time, the image only has the metal rod. The image is binarized, the number of layers of the image, the height of the image and the space height of a layer are obtained, the number of layers of the image within 10 mm is calculated, a center point is taken every 10 mm of the total number of layers, the vectors of adjacent points are calculated, the error is obtained by subtracting the adjacent vectors, a reasonable range is defined, all errors within the range are qualified, and otherwise, the errors are unqualified. Therefore, the error rate of planning and bone cutting navigation according to unqualified pictures in the later stage can be reduced, the leg bone of the picture is consistent with the leg bone of the patient, and the time of manual judgment is reduced.

1. Name of the product in this design: Graphical User Interface for Orthopedic Surgical Navigation and Control of Electronic Devices. 2. Intended use of this design: for use in an electronic device. 3. The key design features of this product are its graphical user interface. 4. The image or photograph that best illustrates the design's key points: the front view. 5. Application of the graphical user interface: for navigation control and information display in robot-assisted orthopedic surgery. 6. Human-computer interaction method of graphical user interface: On the surgery type selection page shown in the main view, select the "Total Knee Replacement Surgery" card to enter the change state diagram 1. Select the item to open the preview page of the knee joint scheme shown in Figure 2, which represents the change state. Click "Navigation" in Change State Diagram 2 to enter Change State Diagram 3. Click "Next" to proceed to the changed state diagram (Figure 4). Click "Finish" to enter the changed state diagram (Figure 5). Click the right button next to "Navigation Steps" to enter the changed state diagram 6. Click "Verify" to enter the changed state (Figure 7). Click the right-hand button next to "Joint Registration" to enter the changed state (Figure 8). Click "Gap" to enter the changing state (Figure 9). Click "Full Process" to enter the change status diagram (Figure 10). Click the right button next to "Intraoperative Assessment" to enter the changed state (Figure 11). Click "OK" to enter the changed state (Figure 12). Click the button with "A" at the bottom to enter the changed state (Figure 13). Click "Apply" to enter the changed state (Figure 14). Click the right button next to "Osteotomy Navigation" to enter the changed state (Figure 15). The gray-coated area represents the content image.

Described within are systems, methods and apparatus for a bone mounted robotic-assisted orthopedic surgery system for precise implant position, soft tissue balancing and guidance of tools during a surgical procedure, particularly partial or total knee replacement procedure. The system features a bone mounted robotic arm with end-effector for precise positioning of surgical tool, position in of implants and balancing of soft tissues. The reconfigurable robotic system requires minimal training by surgeons, is intuitive to use similar to conventional instrumented surgery and has a small footprint. The system works with existing, conventional instruments, patient specific instruments, sensor-assisted systems and computer-assisted systems and does not require increased surgical time and safely provides the enhanced precision achievable by robotic-assisted systems and computer-assisted technologies.