Patent ID: 11931273
Assignee: OTTO BOCK HEALTHCARE PRODUCTS GMBH
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 8:
9. A method to control an artificial orthotic or prosthetic knee joint, the method comprising:
providing an inertial measurement system, a below-knee component positioned on the orthotic or prosthetic knee joint, and a resistance device, the below-knee component including a sole member;
determining sensor data via the inertial measurement system during use of the orthotic or prosthetic knee joint;
determining a linear acceleration at a level of the sole member, an extended stride position of a prosthesis or orthosis having the artificial prosthetic or orthotic knee joint, a knee angle, a knee angle velocity, and an angular velocity of the below-knee component with the sensor data;
comparing at least one of the determined linear acceleration, the determined extended stride position, the determined knee angle, the determined knee angle velocity, and the determined angular velocity with at least one threshold value;
reducing a flexion resistance if the threshold value is reached;
determining an absolute angle of the below-knee component in order to detect a terminal stance phase; and
reducing the flexion resistance if a predefined limit value for the absolute angle of the below-knee component is exceeded such that the below-knee component has a forward inclination and if the linear acceleration is zero in a horizontal direction.