Clinical evaluation of the bionic glove

Popović, Dejan B.; Stojanović, Aleksandar; Pjanovic, A.; Radosavljević, Slobodanka; Popović, Mirjana; Jović, Stevan; Vulović, Dragan

doi:10.1016/s0003-9993(99)90141-7

Cited by 107 publications

(70 citation statements)

References 5 publications

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“…A reduction of flexor hypertonia due to FES was also found elsewhere. 3 The importance of providing different digital or analogue control for FES has been previously reported 27 and clearly apparent in our subjects.…”

Section: Improvement Of Grasp Function With Fessupporting

confidence: 54%

“…Other studies using surface or implantable systems confirm these benefits. 2,3,5,9,10,[22][23][24][25] Smaller objects such as pegs and wooden blocks could be manipulated better with an active tenodesis grasp rather than with FES because the position of the object within the hand can better be corrected, and there is no time required for the interaction with the device. For heavier and slippery objects FES was advantageous or necessary.…”

Section: Improvement Of Grasp Function With Fesmentioning

confidence: 99%

“…1 FES activates paralysed muscles by electrically stimulating peripheral nerves originating from intact lower motoneurons. Different FES systems for improving grasp function have been developed and evaluated, including transcutaneous systems (eg Bionic Glove, 2,3 NESS Handmaster, 4,5 Belgrade Grasping System, 6,7 ActiGrip s System 8 ) and implantable systems (eg Freehand system 9,10 ). The Bionic Glove is a noninvasive FES system that uses self-adhesive surface electrodes.…”

Section: Introductionmentioning

confidence: 99%

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Transcutaneous functional electrical stimulation for grasping in subjects with cervical spinal cord injury

et al. 2004

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Study design: Case series. Objectives: To evaluate the benefit, shortcomings and acceptance of a new transcutaneous functional electrical stimulation (FES) technology aimed at improving the grasp function in tetraplegic subjects in acute and postacute rehabilitation. Setting: Spinal cord injury (SCI) centre, university hospital. Methods: Subjects (N ¼ 11) with complete or incomplete SCI at C4/5-C7 who started FES 1-67 months after their accident were included. Hand function tests, analysis of video recordings and of written documentation of FES sessions, status of muscle strength, and followup query were used as outcome measures. Results: Nine subjects used FES as a neuroprosthesis. Eight demonstrated improved grasp function and performance in activities of daily living. In one subject, no benefit from FES was observed. Two other subjects showed improvements in muscle strength and facilitation of active movement with FES. Four subjects successfully integrated FES as neuroprosthesis in everyday life within the rehabilitation centre. Three received the system for home use. The most relevant reasons for stopping the FES application were: (i) improvement of voluntary grasp function, (ii) physical and psychological problems, (iii) no available stimulator for home use, and (iv) insufficient assistance for electrode placement at home. Shortcomings related to the transcutaneous surface technology (eg pain or coactivation of neighbouring muscles) could usually be reduced, or did not limit the efficiency or acceptance of FES. Individually designed digital or analogue control devices were preferred. Conclusion: Tetraplegic subjects in acute and postacute rehabilitation can profit from a new transcutaneous FES system with respect to functional use and independence. It can be implemented in the rehabilitation programme for muscle strengthening and facilitation of voluntary activity. For a successful application of FES, there is a need for individual electrode placement, stimulation programmes, and FES control devices.Spinal Cord (2005) 43, 1-13.

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Section: Improvement Of Grasp Function With Fessupporting

confidence: 54%

Section: Improvement Of Grasp Function With Fesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Transcutaneous functional electrical stimulation for grasping in subjects with cervical spinal cord injury

et al. 2004

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“…24 The power grasp and the handling of big objects were signi®cantly improved. It was also shown that the Bionic Glove has an important therapeutic e ect during the ADL training.…”

Section: Existing Neuroprosthesesmentioning

confidence: 99%

Functional electrical stimulation for grasping and walking: indications and limitations

et al. 2001

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This review describes the state of art in the ®eld of Functional Electrical Stimulation (FES) and its impact on improving grasping and walking functions in acute and chronic Spinal Cord Injured (SCI) patients. It is argued that during the early rehabilitation period the FES systems with surface stimulation electrodes should be used to assist training of hand and leg movements in SCI patients. Our clinical trials have shown that a number of acute SCI patients with impaired walking and grasping functions could improve these functions due to training with an adjustable FES system to the point that they ®nally did not need the FES system to carry out these tasks. Other acute SCI patients, who did not recover the desired function, were enabled to perform either walking or grasping with the FES assistance. We believe that the subjects who can perform grasping or walking with the help of FES, and still use the neuroprosthesis 6 months after being subjected to the FES training, should consider the FES system as a prosthetic device in Activities of Daily Living (ADL). Despite the signi®cant technical progress achieved in the last 10 to 15 years in the FES ®eld, there is a general consensus that these systems are not su ciently advanced and that they need further development. The limited acceptance of the FES technology can be in part explained by the fact that it is not completely mature and that the patients still require daily assistance to use the FES systems. Nevertheless the present FES treatments combined with conventional occupational and physical therapy still remain the most promising approach in rehabilitating SCI patients. In this review, advantages and limitations of di erent FES systems that are used to restore grasping and walking functions are discussed. Spinal Cord (2001) 39, 403 ± 412

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“…The Bionic Glove [4], [5] from the University of Alberta, Canada, is a hybrid system consisting of a garment with FES electrodes that uses a mechanical measurement of wrist extension to trigger stimulation of finger flexion. A commercially available product called the Handmaster [6] produced by NESS Ltd., Israel, is an orthosis in which stimulation electrodes are fitted; the orthosis locks the wrist in normal position.…”

mentioning

confidence: 99%

A pilot study of myoelectrically controlled FES of upper extremity

Thorsen

Spadone

Ferrarin

2001

IEEE Trans. Neural Syst. Rehabil. Eng.

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Abstract-Functional electrical stimulation (FES) of upper limbs can be used for the recovery of some hand functions on patients with CNS lesions. This study deals with the control of FES by means of myoelectrical activity detected from voluntarily activated paretic muscles. The specific aim of this paper is to evaluate the accuracy of myoelectrical control in terms of produced force and movement.For this purpose, a specific device called myoelectrical controlled functional electrical stimulator (MeCFES) has been developed and applied to six tetraplegic patients with a spinal cord lesion and one stroke hemiplegic patient.Residual myoelectric signals from the paretic wrist extensor (m. extensor carpi radialis, ECR) have been used to control stimulation of either the wrist extension (i.e., the same muscle) or thumb flexion. A tracking test based on a visual feedback of the produced force or movement compared to a reference target trajectory was used to quantify control accuracy. A comparison was made between the tracking performances of each subject with and without the MeCFES and the learning process for two of the subjects were observed during consecutive sessions.Results showed that the wrist extension was improved in three out of five C5 SCI patients and the thumb flexion was largely increased in one incomplete C3 SCI patient. The hemiplegic patient showed limited thumb control with the MeCFES but indicated the possibility of a carry over effect. It was found that a low residual natural force resulted in a less accurate movement but also with a large increase (up to ten times) of the muscle output. On the contrary, persons with a medium residual force obtained a smaller amplification of muscle force with a higher tracking accuracy.

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Clinical evaluation of the bionic glove

Cited by 107 publications

References 5 publications

Transcutaneous functional electrical stimulation for grasping in subjects with cervical spinal cord injury

Transcutaneous functional electrical stimulation for grasping in subjects with cervical spinal cord injury

Functional electrical stimulation for grasping and walking: indications and limitations

A pilot study of myoelectrically controlled FES of upper extremity

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