Development of an ADL assistance apparatus for upper limbs and evaluation of muscle and cerebral activity

Eiichiro Tanaka, Shozo Saegusa, Yasuo Iwasaki, Louis Yuge

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We developed an assistance apparatus for upper limbs for patients who can control their finger but they cannot lift up their arms themselves, for example myopathy and hemiplegic patients. The mechanism of assistance is utilized the differential gears to lose the weight and volume of the mechanical arm. That enabled us to configure three motors to drive two DOFs (Degrees of freedom) for the shoulder and one DOF for the elbow around the root of the mechanical arm. This arm has two support trays, for wrist and upper arm. Furthermore, to realize other ADL (activities of daily living) motions (for instance, eating, writing, putting on makeup, wiping his/her face, and so on) them selves, we proposed to control the device using the targeted posture map for the mechanical arm. To be able to choose the appropriate input for each patient, various input interfaces, for example, joy-stick, push buttons, sensor glove using bending sensors, and so on, are equipped. In general, even though a human behaves an atonic motion, the maximum voluntary contraction (%MVC) outputs at least from 5 to 10 %. The usage of this apparatus is to move the user's upper limbs with dependence completely, and the purpose of this apparatus is to decrease the value of %MVC up to approximately 10 %. Therefore, in this paper, the muscles of the user were evaluated with the ratio of %MVC. To confirm the effectiveness of assistance ability, we measured muscle activity while using the device, and compared the %MVC data between using the device or not. As a result, the activity decreased up to 80%, and the effectiveness of this device could be confirmed. Finally, to expand the usage of this apparatus to encompass Neuro-Rehabilitation as well, we measured cerebral activity while using the device for rehabilitation with a near-infrared spectroscopy (NIRS). Then we compared the data from using the device or not, and input motion from a third person. By using this device, the cerebral activity decreased especially when the target motion was complex. However, when the subject input the motion themselves, the cerebral activity increased more than when the data is input by a third person, especially, when the target motion was complex. Therefore, for use in Neuro-Rehabilitation, we found it is important the subject input the target motion him/herself.

Original languageEnglish
Title of host publication38th Mechanisms and Robotics Conference
PublisherAmerican Society of Mechanical Engineers (ASME)
Volume5A
ISBN (Electronic)9780791846360
DOIs
Publication statusPublished - 2014
Externally publishedYes
EventASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2014 - Buffalo, United States
Duration: 2014 Aug 172014 Aug 20

Other

OtherASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2014
CountryUnited States
CityBuffalo
Period14/8/1714/8/20

Fingerprint

Patient rehabilitation
Muscle
Motion
Evaluation
Rehabilitation
Near infrared spectroscopy
Sensors
Gears
Target
Person
Degree of freedom
Near-infrared Spectroscopy
Sensor
Expand
Contraction
Choose
Roots
Face
Decrease
Output

ASJC Scopus subject areas

  • Modelling and Simulation
  • Mechanical Engineering
  • Computer Science Applications
  • Computer Graphics and Computer-Aided Design

Cite this

Tanaka, E., Saegusa, S., Iwasaki, Y., & Yuge, L. (2014). Development of an ADL assistance apparatus for upper limbs and evaluation of muscle and cerebral activity. In 38th Mechanisms and Robotics Conference (Vol. 5A). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/DETC2014-34914

Development of an ADL assistance apparatus for upper limbs and evaluation of muscle and cerebral activity. / Tanaka, Eiichiro; Saegusa, Shozo; Iwasaki, Yasuo; Yuge, Louis.

38th Mechanisms and Robotics Conference. Vol. 5A American Society of Mechanical Engineers (ASME), 2014.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Tanaka, E, Saegusa, S, Iwasaki, Y & Yuge, L 2014, Development of an ADL assistance apparatus for upper limbs and evaluation of muscle and cerebral activity. in 38th Mechanisms and Robotics Conference. vol. 5A, American Society of Mechanical Engineers (ASME), ASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2014, Buffalo, United States, 14/8/17. https://doi.org/10.1115/DETC2014-34914
Tanaka E, Saegusa S, Iwasaki Y, Yuge L. Development of an ADL assistance apparatus for upper limbs and evaluation of muscle and cerebral activity. In 38th Mechanisms and Robotics Conference. Vol. 5A. American Society of Mechanical Engineers (ASME). 2014 https://doi.org/10.1115/DETC2014-34914
Tanaka, Eiichiro ; Saegusa, Shozo ; Iwasaki, Yasuo ; Yuge, Louis. / Development of an ADL assistance apparatus for upper limbs and evaluation of muscle and cerebral activity. 38th Mechanisms and Robotics Conference. Vol. 5A American Society of Mechanical Engineers (ASME), 2014.
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