Exactech has been granted a patent for a system and method to evaluate soft tissue during knee arthroplasty. The method involves using an adjustable spacer and force sensor to measure pressure and gap distance, ensuring equal pressure on medial and lateral components. The information gathered can be used to update surgical plans. GlobalData’s report on Exactech gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on Exactech, Customized implants was a key innovation area identified from patents. Exactech's grant share as of January 2024 was 50%. Grant share is based on the ratio of number of grants to total number of patents.

Robotic system for knee arthroplasty with adjustable spacer

Source: United States Patent and Trademark Office (USPTO). Credit: Exactech Inc

A recently granted patent (Publication Number: US11833063B2) outlines a method for a robotic surgical system designed for robotically-assisted total knee arthroplasty. The method involves utilizing integral pumps within the system to perform a robotically-assisted resection of a patient's knee joint, inserting an adjustable spacer and force sensor device, and tracking the leg's flexion and extension during a range of motion test. The system maintains an equal gap distance between the knee's medial and lateral sides by adjusting pressure in the adjustable components. The maximum force between the resected surfaces is determined using the force sensor device and displayed on a connected screen.

Furthermore, the method includes determining an implant based on the maximum force, adjusting the three-dimensional plan accordingly, and repeating the range of motion test as needed. The system also allows for adjustments based on the maximum force, maintains equal pressure during the test, and can perform a robotically-assisted resection of the femur if required. Additionally, the method involves displaying the degree of flexion or extension during the range of motion test on the connected display, providing comprehensive feedback for the surgical process. The patent emphasizes the precision and adaptability of the robotic surgical system in ensuring optimal outcomes for total knee arthroplasty procedures.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.