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

Claim 0:
1. A method for controlling an artificial orthotic or prosthetic knee joint, the orthotic or prosthetic knee joint including a resistance device, at least one sensor, and a below-knee component, the method comprising:
determining sensor data via the at least one sensor during use of the orthotic or prosthetic knee joint;
determining at least one of a linear acceleration of the below-knee component, 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/or 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/or the determined angular velocity with at least one threshold value therefor;
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;
determining a knee moment about an axis of the orthotic or prosthetic knee joint in order to detect the 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 knee moment is acting in an extension direction, wherein determining at least one of a linear acceleration of the below-knee component, 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 comprises determining the linear acceleration of the below-knee component, and reducing the flexion resistance when the extended stride position is present, and wherein the threshold value is zero acceleration in a horizontal direction.