Design of adjustable spherical four-bar linkages as continuous passive motion devices for anatomic joints rehabilitation

Boyang Hong, Arthur Erdman, Kealy Ham

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

Abstract

Continuous passive motion (CPM) is an important treatment in postoperative rehabilitation of human joints. It can improve the range of motion (ROM), reduce joint stiffness and accelerate the recovery process. The concept of CPM can be applied in many joint rehabilitation applications, including ankle joints, knee joints and elbow joints. However, even within a single type of joint, the ROM can be significantly different from person to person. Adjustable spherical linkage is appropriate for these applications. The following procedure is introduced: synthesize the first set of positions and selects the center point and circle point. Then, with the same center point and circle point, by altering some design parameters, i.e., the length of the input link and output link, a new set of positions can be synthesized. This idea is more practical in three-plustwo position synthesis, but can also be applied to four-plusthree position synthesis, with a significant increase in complexity.

Original languageEnglish (US)
Title of host publication24th Biennial Mechanisms Conference
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791897584
DOIs
StatePublished - 1996
EventASME 1996 Design Engineering Technical Conferences and Computers in Engineering Conference, DETC-CIE 1996 - Irvine, United States
Duration: Aug 18 1996Aug 22 1996

Publication series

NameProceedings of the ASME Design Engineering Technical Conference
Volume2B-1996

Conference

ConferenceASME 1996 Design Engineering Technical Conferences and Computers in Engineering Conference, DETC-CIE 1996
CountryUnited States
CityIrvine
Period8/18/968/22/96

Bibliographical note

Publisher Copyright:
© 1996 American Society of Mechanical Engineers (ASME). All rights reserved.

Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.

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