CMR Surgical had 40 patents in robotics during Q1 2024. CMR Surgical Ltd has filed patents for a robot arm with electrical braking in case of faults, a drape interface structure with varying elastic deformability, a method for testing a motor of a robot arm, and a control system for a surgical robotic system allowing remote control of surgical instrument positions. GlobalData’s report on CMR Surgical gives a 360-degree view of the company including its patenting strategy. Buy the report here.

CMR Surgical grant share with robotics as a theme is 40% in Q1 2024. Grant share is based on the ratio of number of grants to total number of patents.

Recent Patents

Application: Fault detection response in a robot arm (Patent ID: US20240100722A1)

The patent filed by CMR Surgical Ltd. describes a robot arm with a unique feature where a controller is configured to electrically brake the motor in response to detecting a fault in the robot arm. This braking current is applied to maintain the position of the joint against gravity, specifically when the joint is in a configuration where the arm would droop under gravity if not actively driven. The system is designed to address faults such as a loss of power by connecting the braking current to a back-up power supply, ensuring the arm's stability and safety.

Furthermore, the robot arm includes a multiple-phase motor with specific configurations for applying braking currents to different phases in response to faults. The controller is programmed to isolate faulty phases, apply braking currents to remaining phases, and utilize various sensors and circuitry to detect and respond to faults effectively. Additionally, the joint of the robot arm can rotate relative to the first link, and the braking current is designed to provide a fixed torque to lock the rotational position of the joint, enhancing the arm's precision and stability during operation. Overall, the patent outlines a sophisticated system for ensuring the safe and reliable performance of robot arms in various scenarios, particularly when facing faults or power loss.

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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.