System and method for electrotactile feedback

A sensory, user-friendly technology for prosthetics

Active Publication Date: 2017-10-20
FUNDACION TECNALIA RES & INNOVATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, the system addresses the problem of identifying artificial body parts or body limbs (prosthet...

Method used

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  • System and method for electrotactile feedback
  • System and method for electrotactile feedback
  • System and method for electrotactile feedback

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Embodiment Construction

[0048] In this document, the term "comprising" and its derivatives (such as "comprising", etc.) should not be interpreted as an exclusive meaning, that is, these terms should not be interpreted as excluding that the described and limited content may include additional elements, steps possibility of waiting.

[0049] In the context of the present invention, the term "about" and its cognate terms (eg "approximately", etc.) are to be understood as indicating values ​​that are very close to those values ​​accompanying the preceding mentioned term. That is, deviations from the exact value should be acceptable within reasonable limits, since a person skilled in the art will appreciate that such deviations from the indicated values ​​are unavoidable due to, for example, measurement inaccuracies. The same applies to the terms "approximately" and "about" and "substantially".

[0050] The term "body member" of a "body part" is intended along the text to mean an arm or a leg or a part t...

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PUM

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Abstract

A system and method for transferring proprioceptive and/or sensory information from a prosthesis (37, 471) or from a sensing system (472) disposed at a body part having poor or no sensation, to the skin of a user wearing such prosthesis or sensing system. The system comprises: a device (10, 30, 40) for providing electrotactile feedback in the form of an electrical stimulation pattern with coding scheme for at least one input signal (14, 141, 142, 341, 441); and at least one multi-pad electrode (13, 33, 43, 53, 63) configured to be positioned on a part of the body of said user, said multi-pad electrode (13, 33, 43, 53, 63) comprising a plurality of pads configured to be selectively and discretely activated/deactivated according to said predefined stimulation pattern.

Description

technical field [0001] The present invention relates to the field of prostheses, such as hand prostheses, or to non-sensitized body parts, and in particular to electrostimulation devices providing electrotactile feedback for such prostheses or non-sensitized body parts. Background technique [0002] Commercially available multifunctional motorized prostheses capable of opening or closing the hand based on electromyographic (EMG) control signals (myoelectric prosthesis) are currently facing several challenges. They typically only allow two degrees of freedom (hands open and close), they lack sensory feedback, they have limited battery life, and are excessively heavy and accumulate heat when carried all day. Such shortcomings lead to an average rejection rate of more than 25% for myoelectric prostheses today. Ongoing research—including the combined use of multiple EMG recordings and artificial neural networks—may soon form the basis for neural control of more advanced hand pr...

Claims

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Application Information

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IPC IPC(8): A61F2/68A61F2/58A61F2/60A61F2/80A61F2/76
CPCA61F2/583A61F2/60A61F2/80A61F2002/7625A61F2002/762A61F2002/7635A61F2002/5058A61F2002/6827A61F2/72A61F2002/7615A61F2/76A61F2/68
Inventor 马蒂亚·什特尔巴茨戈兰·比耶利奇内博伊萨·马莱舍维奇蒂里·谢勒
Owner FUNDACION TECNALIA RES & INNOVATION
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