Posts Tagged FES

[VIDEO] Can functional electrical stimulation restore function? – YouTube

Daniel Becker, MD | The Johns Hopkins University School of Medicine and INI October 21, 2017

via Can functional electrical stimulation restore function? – YouTube

Advertisements

, ,

Leave a comment

[Abstract] Combined Brain and Peripheral Nerve Stimulation in Chronic Stroke Patients With Moderate to Severe Motor Impairment

First published: 

Abstract

Objectives

To evaluate effects of somatosensory stimulation in the form of repetitive peripheral nerve sensory stimulation (RPSS) in combination with transcranial direct current stimulation (tDCS), tDCS alone, RPSS alone, or sham RPSS + tDCS as add-on interventions to training of wrist extension with functional electrical stimulation (FES), in chronic stroke patients with moderate to severe upper limb impairments in a crossover design. We hypothesized that the combination of RPSS and tDCS would enhance the effects of FES on active range of movement (ROM) of the paretic wrist to a greater extent than RPSS alone, tDCS alone or sham RPSS + tDCS.

Materials and Methods

The primary outcome was the active ROM of extension of the paretic wrist. Secondary outcomes were ROM of wrist flexion, grasp, and pinch strength of the paretic and nonparetic upper limbs, and ROM of wrist extension of the nonparetic wrist. Outcomes were blindly evaluated before and after each intervention. Analysis of variance with repeated measures with factors “session” and “time” was performed.

Results

After screening 2499 subjects, 22 were included. Data from 20 subjects were analyzed. There were significant effects of “time” for grasp force of the paretic limb and for ROM of wrist extension of the nonparetic limb, but no effects of “session” or interaction “session x time.” There were no significant effects of “session,” “time,” or interaction “session x time” regarding other outcomes.

Conclusions

Single sessions of PSS + tDCS, tDCS alone, or RPSS alone did not improve training effects in chronic stroke patients with moderate to severe impairment.

Source: Combined Brain and Peripheral Nerve Stimulation in Chronic Stroke Patients With Moderate to Severe Motor Impairment – Menezes – 2017 – Neuromodulation: Technology at the Neural Interface – Wiley Online Library

, , , , , , , , , , ,

Leave a comment

[WEB SITE] SMARTmove – FES

Summary

SMARTmove is a £1.1 million Medical Research Council research project running for 30 months from September 2016 to February 2019, funded under the Development Pathway Funding Scheme (DPFS). The project brings together a multidisciplinary team with expertise in functional materials, direct printing fabrication, control algorithms, wireless electronics, sensors, and end user engagement to address stroke rehabilitation. Working together with the advisory board members from six institutions, we will deliver a personalised wearable device for home-based stroke upper limb rehabilitation.

     

The Need

Stroke is one of the largest causes of disability: 17 million strokes occur every year worldwide, meaning one stroke every two seconds. Half of stroke survivors lose the ability to perform everyday tasks with their upper limb, which affects their independence. The cost to society in the UK is nine billion pounds per year due to health and social care, informal care, productivity loss and benefit payments. As stroke is an age-related disease, these numbers are set to increase as the population ages.

Novelty

Current commercial devices using functional electrical stimulation (FES) have large electrodes that only stimulate a limited number of muscles, resulting in simple, imprecise movements and the rapid onset of fatigue. In addition, current commercial devices do not employ feedback control to account for the movement of patients, only reducing the level of precision in the resulting movements. In addition, devices are either bulky and expensive, or difficult to set-up due to trailing wires.

Our project uses bespoke screen printable pastes to print electrode arrays directly onto everyday fabrics, such as those used in clothing. The resulting garments will have cutting-edge sensor technologies integrated into them. Advanced control algorithms will then adjust the stimulation based on the patients’ limb motion to enable precise functional movements, such as eating, washing or dressing.

Impact

This project will deliver a fabric-based wearable FES for home based stroke rehabilitation. The beneficiaries include:

  1. Persons with stroke (PwS) and other neurological conditions. Stroke survivors are the direct beneficiaries of our research. The FES clothing can be adapted to also treat hand/arm disabilities resulting from other neurological conditions such as cerebral palsy, head injury, spinal cord injury, and multiple sclerosis. The use of the wearable training system increases the intensity of rehabilitation without an increase in clinical contact time. This leads to better outcomes such as reduced impairment, greater restoration of function, improved quality of life and increased social activity.
  2. The NHS. FES-integrated clothing is comfortable to wear and convenient to use for rehabilitation, enabling impaired people to benefit from FES at home. It will transfer hospital based professional care to home based self-care, and therefore will reduce NHS costs by saving healthcare professionals’ time and other hospital resources.
  3. Industry. Benefits include: bringing business to the whole supply chain; increasing the FES market demand by improving performance; benefiting other industry sectors such as rehabilitation for other neurological conditions.
  4. Research communities in related fields. Specifically, the fields of novel fabrication, control systems, design of medical devices, rehabilitation, smart fabrics, and remote healthcare will benefit from the highly transformative platform technology (e.g. direct write printing, fabric electrodes, iterative learning control systems) developed in this work.

What is FES?

Functional electrical stimulation (FES) is a technique used to facilitate the practice of therapeutic exercises and tasks. Intensive movement practice can restore the upper limb function lost following stroke. However, stroke patients often have little or no movement, so are unable to practice. FES activates muscles artificially to facilitate task practise and improve patients’ movement.

More…..

Source: SMARTmove

, , , , , , ,

Leave a comment

[VIDEO] Bioness L300 Go Technology Introduction – YouTube

Published on Sep 25, 2017
L300 Go is a functional electrical stimulation (FES) system that satisfies the productivity demands of today’s value-based healthcare system. Key aspects of the L300 experience have been dramatically improved with 3D Motion Detection, multi-channel stimulation, Smart Bluetooth® programming and a home user mobile app that tracks activity to keep patients engaged in the rehabilitation process. All of this in a streamlined design, with a fitting process that is faster and easier than ever before.

, , , , ,

Leave a comment

[WEB SITE] Bioness Announces Commercial Availability of the L300 Go™ System to Healthcare Professionals

Source: Bioness Announces Commercial Availability of the L300 Go™ System to Healthcare Professionals

, , , , , ,

Leave a comment

[Abstract] Design and Test of a Closed-Loop FES System for Supporting Function of the Hemiparetic Hand Based on Automatic Detection Using the Microsoft Kinect Sensor

Abstract
This paper describes the design of a FES system automatically controlled in a closed loop using a Microsoft Kinect sensor, for assisting both cylindrical grasping and hand opening. The feasibility of the system was evaluated in real-time in stroke patients with hand function deficits. A hand function exercise was designed in which the subjects performed an arm and hand exercise in sitting position. The subject had to grasp one of two differently sized cylindrical objects and move it forward or backwards in the sagittal plane. This exercise was performed with each cylinder with and without FES support. Results showed that the stroke patients were able to perform up to 29% more successful grasps when they were assisted by FES. Moreover, the hand grasp-and-hold and hold-and-release durations were shorter for the smaller of the two cylinders. FES was appropriately timed in more than 95% of all trials indicating successful closed loop FES control. Future studies should incorporate options for assisting forward reaching in order to target a larger group of stroke patients.

, , , , , , , , , ,

Leave a comment

[Abstract] Preliminary results of testing the recoveriX system on stroke patients 

Abstract

Motor imagery based brain-computer interfaces (BCI) extract the movement intentions of subjects in real-time and can be used to control a cursor or medical devices. In the last years, the control of functional electrical stimulation (FES) devices drew researchers’ attention for the post-stroke rehabilitation field. In here, a patient can use the movement imagery to artificially induce movements of the paretic arms through FES in real-time.

Five patients who had a stroke that affected the motor system participated in the current study, and were trained across 10 to 24 sessions lasting about 40 min each with the recoveriX® system. The patients had to imagine 80 left and 80 right hand movements. The electroencephalogram (EEG) data was analyzed with Common Spatial Patterns (CSP) and linear discriminant analysis (LDA) and a feedback was provided in form of a cursor on a computer screen. If the correct imagination was classified, the FES device was also activated to induce the right or left hand movement.

In at least one session, all patients were able to achieve a maximum accuracy above 96%. Moreover, all patients exhibited improvements in motor function. On one hand, the high accuracies achieved within the study show that the patients are highly motivated to participate into a study to improve their lost motor functions. On the other hand, this study reflects the efficacy of combining motor imagination, visual feedback and real hand movement that activates tactile and proprioceptive systems.

Source: O174 Preliminary results of testing the recoveriX system on stroke patients – Clinical Neurophysiology

, , , , , , , , , , , ,

Leave a comment

[Abstract] Towards an ankle neuroprosthesis for hybrid robotics: Concepts and current sources for functional electrical stimulation

Abstract:

Hybrid rehabilitation robotics combine neuro-prosthetic devices (close-loop functional electrical stimulation systems) and traditional robotic structures and actuators to explore better therapies and promote a more efficient motor function recovery or compensation. Although hybrid robotics and ankle neuroprostheses (NPs) have been widely developed over the last years, there are just few studies on the use of NPs to electrically control both ankle flexion and extension to promote ankle recovery and improved gait patterns in paretic limbs. The aim of this work is to develop an ankle NP specifically designed to work in the field of hybrid robotics. This article presents early steps towards this goal and makes a brief review about motor NPs and Functional Electrical Stimulation (FES) principles and most common devices used to aid the ankle functioning during the gait cycle. It also shows a current sources analysis done in this framework, in order to choose the best one for this intended application.

Source: Towards an ankle neuroprosthesis for hybrid robotics: Concepts and current sources for functional electrical stimulation – IEEE Xplore Document

, , , , , , , , , ,

Leave a comment

[VIDEO] WalkAide® Demonstration – YouTube

Published on Mar 29, 2012

WalkAide® patient Connie Fowble demonstrates how the Walkaide® benefits her daily life. She shows the previous orthotic device that she used prior to being fit with the Walkaide®. For more information call 877-4HANGER or visit http://www.hanger.com.

, , , ,

Leave a comment

[Technology News] Global Functional Electrical Stimulation Device (FES) Market 2017 – Bioness INC, Otto Bock, Odstock Medical Limited 

Functional Electrical Stimulation Device (FES) market studies the competitive landscape view of the industry. The Functional Electrical Stimulation Device (FES) report also includes development plans and policies along with manufacturing processes. The major regions involved in Functional Electrical Stimulation Device (FES) Market are (United States, EU, China, and Japan).

For Sample Copy Of The Report Click Here: http://qyresearch.us/report/global-functional-electrical-stimulation-device-fes-market-2017/41817/#inquiry

Leading Manufacturers Analysis in Global Functional Electrical Stimulation Device (FES) Market 2017:

1 Bioness INC
2 Otto Bock
3 Odstock Medical Limited
4 Trulife
5 XFT
6 MotoMed

Functional Electrical Stimulation Device (FES) Market: Type Segment Analysis

Wire
Wireless

Functional Electrical Stimulation Device (FES) Market: Applications Segment Analysis

Personal FES
Commercial FES

The Functional Electrical Stimulation Device (FES) report does the thorough study of the key industry players to understand their business strategies, annual revenue, company profile and their contribution to the global Functional Electrical Stimulation Device (FES) market share. Diverse factors of the Functional Electrical Stimulation Device (FES) industry like the supply chain scenario, industry standards, import/export details are also mentioned in Global Functional Electrical Stimulation Device (FES) Market 2017 report.

Key Highlights of the Functional Electrical Stimulation Device (FES) Market:

A Clear understanding of the Functional Electrical Stimulation Device (FES) market based on growth, constraints, opportunities, feasibility study.

Concise Functional Electrical Stimulation Device (FES) Market study based on major geographical regions.

Analysis of evolving market segments as well as a complete study of existing Functional Electrical Stimulation Device (FES) market segments.

Discover More About Report Here: http://qyresearch.us/report/global-functional-electrical-stimulation-device-fes-market-2017/41817/

Furthermore, distinct aspects of Functional Electrical Stimulation Device (FES) market like the technological development, economic factors, opportunities and threats to the growth of Functional Electrical Stimulation Device (FES) market are covered in depth in this report. The performance of Functional Electrical Stimulation Device (FES) market during 2017 to 2022 is being forecasted in this report.

In conclusion, Global Functional Electrical Stimulation Device (FES) market 2017 report presents the descriptive analysis of the parent market based on elite players, present, past and futuristic data which will serve as a profitable guide for all the Functional Electrical Stimulation Device (FES) industry competitors.

Source: Global Functional Electrical Stimulation Device (FES) Market 2017 – Bioness INC, Otto Bock, Odstock Medical Limited | The First Newshawk

, ,

Leave a comment

%d bloggers like this: