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Forearm rotation mechanism and orthosis including such mechanism

Дата: Март 23rd, 2011 Автор:
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  • Тип контента: Патент
  • Номер документа: 5047
  • Название документа: Forearm rotation mechanism and orthosis including such mechanism
  • Номер (DOI, IBSN, Патент): EP2164432B1
  • Изобретатель/автор: Garrec, P.
  • Правопреемник/учебное заведение: Comm. A L'Energie Atomique et Aux Energies Alt., Paris, France
  • Дата публикации документа: 2011-03-23
  • Страна опубликовавшая документ: Франция
  • Язык документа: Французский
  • Наименование изделия: Не заполнено
  • Источник: http://www.freepatentsonline.com/EP2164432.html
  • Вложения: Да
  • Аналитик: Дмитрий Соловьев

Forearm rotation mechanism and orthosis including such mechanism.

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Body Mounted Muscular Brace

Дата: Март 17th, 2011 Автор:
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  • Тип контента: Патент
  • Номер документа: 4554
  • Название документа: Body Mounted Muscular Brace
  • Номер (DOI, IBSN, Патент): US2011/0065553A1
  • Изобретатель/автор: Cersonsky S.M.
  • Правопреемник/учебное заведение: Не заполнено
  • Дата публикации документа: 2011-03-17
  • Страна опубликовавшая документ: США
  • Язык документа: Английский
  • Наименование изделия: Не заполнено
  • Источник: http://www.google.com/patents/US20110065553
  • Вложения: Да
  • Аналитик: Дмитрий Соловьев

A portable, easily body-mounted, light-weight hinged brace to build muscle groups by adding adjustable resistance at the joint.

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Категория: Патенты | Нет комментариев »


Human Leg Model Predicts Ankle Muscle-Tendon Morphology, State, Roles and Energetics in Walking

Дата: Март 17th, 2011 Автор:
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  • Тип контента: Научная статья
  • Номер документа: 7239
  • Название документа: Human Leg Model Predicts Ankle Muscle-Tendon Morphology, State, Roles and Energetics in Walking
  • Номер (DOI, IBSN, Патент): doi:10.1371/journal.pcbi.1001107
  • Изобретатель/автор: Pavitra Krishnaswamy, Emery N. Brown, Hugh M. Herr
  • Правопреемник/учебное заведение: Massachusetts Institute of Technology, Cambridge, Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
  • Дата публикации документа: 2011-03-17
  • Страна опубликовавшая документ: США
  • Язык документа: Английский
  • Наименование изделия: Не заполнено
  • Источник: PLoS Comput Biol
  • Вложения: Да
  • Аналитик: Глаголева Елена

A common feature in biological neuromuscular systems is the redundancy in joint actuation. Understanding how these redundancies are resolved in typical joint movements has been a long-standing problem in biomechanics, neuroscience and prosthetics. Many empirical studies have uncovered neural, mechanical and energetic aspects of how humans resolve these degrees of freedom to actuate leg joints for common tasks like walking. However, a unifying theoretical framework that explains the many independent empirical observations and predicts individual muscle and tendon contributions to joint actuation is yet to be established. Here we develop a computational framework to address how the ankle joint actuation problem is resolved by the neuromuscular system in walking. Our framework is founded upon the proposal that a consideration of both neural control and leg muscle-tendon morphology is critical to obtain predictive, mechanistic insight into individual muscle and tendon contributions to joint actua-tion. We examine kinetic, kinematic and electromyographic data from healthy walking subjects to find that human leg muscle-tendon morphology and neural activations enable a metabolically optimal realization of biological ankle mechanics in walking. This optimal realization corresponds to independent empirical observations of operation and performance of the soleus and gastrocnemius muscles, gives rise to an efficient load-sharing amongst ankle muscle-tendon units and causes soleus and gastrocnemius muscle fibers to take on distinct mechanical roles of force generation and power production at the end of stance phase in walking. The framework outlined here suggests that the dynamical interplay between leg structure and neural control may be key to the high walking economy of humans, and has implications as a means to obtain insight into empirically inaccessible features of individual muscle and tendons in biomechanical tasks.

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Категория: Научные статьи | Нет комментариев »


Self contained powered exoskeleton walker for a disabled user

Дата: Март 17th, 2011 Автор:
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  • Тип контента: Патент
  • Номер документа: 4414
  • Название документа: Self contained powered exoskeleton walker for a disabled user
  • Номер (DOI, IBSN, Патент): US2011/0066088A1
  • Изобретатель/автор: Little R., Irving R.A.
  • Правопреемник/учебное заведение: Не заполнено
  • Дата публикации документа: 2011-03-17
  • Страна опубликовавшая документ: США
  • Язык документа: Английский
  • Наименование изделия: Не заполнено
  • Источник: http://www.google.com/patents/US20110066088
  • Вложения: Да
  • Аналитик: Дмитрий Соловьев

A walker by a mobility impaired disabled user while moving through a set of movements correlating to a walking motion. The walker comprises an exoskeleton, a power source in the form of a battery pack or other similar onboard power pack together with its associated power supply cables, and a control system. The exoskeleton comprises a rigid pelvic support member including a pelvic harness and a pair of leg structures. Each of the leg structures comprise an upper leg structural member, alower leg structural member, a foot member, a main hip actuator, a knee actuator and a main foot actuator.

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Категория: Патенты | Нет комментариев »


Human–Robot Synchrony: Flexible Assistance Using Adaptive Oscillators

Дата: Март 17th, 2011 Автор:
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  • Тип контента: Научная статья
  • Номер документа: 1677
  • Название документа: Human–Robot Synchrony: Flexible Assistance Using Adaptive Oscillators
  • Номер (DOI, IBSN, Патент): 10.1109/TBME.2010.2089629
  • Изобретатель/автор: Vitiello, N., van den Kieboom, J., Ronsse, R., Lenzi, T., Ijspeert, A.J., Carrozza, M.C.
  • Правопреемник/учебное заведение: Biorobotics Lab., Ecole Polytech. Fed. de Lausanne (EPFL), Lausanne, Switzerland
  • Дата публикации документа: 2011-03-17
  • Страна опубликовавшая документ: Швейцария
  • Язык документа: Английский
  • Наименование изделия: Не заполнено
  • Источник: http://ieeexplore.ieee.org/search/freesrchabstract.jsp?tp=&a
  • Вложения: Да
  • Аналитик: Дмитрий Соловьев

We propose a novel method for movement assistance that is based on adaptive oscillators, i.e., mathematical tools that are capable of extracting the high-level features (amplitude, frequency, and offset) of a periodic signal. Such an oscillator acts like a filter on these features, but keeps its output in phase with respect to the input signal. Using a simple inverse model, we predicted the torque produced by human participants during rhythmic flexion extension of the elbow. Feeding back a fraction of this estimated torque to the participant through an elbow exoskeleton, we were able to prove the assistance efficiency through a marked decrease of the biceps and triceps electromyography. Importantly, since the oscillator adapted to the movement imposed by the user, the method flexibly allowed us to change the movement pattern and was still efficient during the nonstationary epochs. This method holds promise for the development of new robot-assisted rehabilitation protocols because it does not require prespecifying a reference trajectory and does not require complex signal sensing or single-user calibration: the only signal that is measured is the position of the augmented joint. In this paper, we further demonstrate that this assistance was very intuitive for the participants who adapted almost instantaneously.

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Категория: Научные статьи | 1 Комментарий »