Method for setting up a control process, control process for an orthopedic device, and orthopedic device

A pattern recognition-based control system for prosthetics allows patients to use their muscle contractions naturally, simplifying control and adaptation, addressing the challenge of complex prosthetic control with multiple electrode pairs.

WO2026132062A1PCT designated stage Publication Date: 2026-06-25OTTO BOCK HEALTHCARE PROD GMBH
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
OTTO BOCK HEALTHCARE PROD GMBH
Filing Date
2025-12-17
Publication Date
2026-06-25

AI Technical Summary

Technical Problem

Existing prosthetic devices, particularly those with complex components like powered prosthetic elbows and hands, are difficult to control reliably using conventional two-channel controllers, requiring multiple electrode pairs and complex control systems, which delays patient use post-amputation and complicates prosthesis selection.

Method used

A control system utilizing pattern recognition to assign multiple sensor signals to a switching operation, eliminating the need for predefined thresholds by allowing patients to generate and reproduce their own muscle contraction patterns, which are then evaluated and assigned to trigger signals for mode switching.

Benefits of technology

Enables quick adaptation and reliable control of prosthetic devices by allowing patients to use their natural muscle contractions for control, reducing the need for electrode pairing and simplifying the control system setup, thereby enhancing usability and acceptance post-amputation.

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Abstract

The invention relates to a method for setting up a control of an orthopedic device (10) which can be placed on a body part of a patient and which has a sensor device (20) with at least one sensor (22) and at least one drive (24), the at least one sensor and the at least one drive being connected to a control device (30). Data relating to the patient is recorded by the sensor device (20) and transmitted as sensor signals to the control device (30). The drive (24) drives at least one adjustable component (12) of the orthopedic device (10), and the control device (30) has at least two stored control modes in which the drive (24) is activated, deactivated, or modulated on the basis of the sensor signals and is switched between the control modes via a trigger signal, wherein a plurality of sensors (22) are provided in the sensor device (20), and a plurality of sensor signals are detected which are to be assigned to a switching process, the sensor signals which are to be assigned to the switching process being evaluated using a pattern recognition process, and the evaluation being assigned to the trigger signal.
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