Hand exoskeleton for continuous passive motion postoperative rehabilitation

Uetsuji, Sakura; Kingsuvangul, Nattawat; Boonyasurakul, Boonyawee; Charoensuk, Warakorn

doi:10.1109/bmeicon.2017.8229149

Cited by 4 publications

(3 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Walking with torso load is very common to daily life, such as students carrying schoolbags to school, doctors wearing protective clothing to work, and soldiers carrying equipment to March. Long-term weightbearing walking will not only increase physical fatigue and reduce the exercise state of human body, but also easily lead to stress fracture of lower limbs, joint pain of lower limbs, back muscle pull-up, lumbar disc herniation and other injuries [1][2][3][4]. In order to reduce the fatigue of human body, reduce the risk of injury and improve the sports performance, the current research mainly focuses on the following two directions.…”

Section: Introductionmentioning

confidence: 99%

Response of Passive Exoskeleton to Torso Load under Natural Gait

2022

Proceedings of WCSE 2022 Spring Event: 2022 9th International Conference on Industrial Engineering and Applications

View full text Add to dashboard Cite

Torso loads is the most common load form of daily life. Backpacks carried daily and radiation protection clothing worn by some specific workers belong to the category of torso load. When this kind of load is worn and walked by human body, it will fluctuate with the height of human centroid. For walking, what is done in this direction is useless. Under certain circumstances, such as marching, it is often required to walk with a large amount of load for a long time and the external environment cannot provide a sustainable energy supply. For the sake of to reduce the extra work required by load fluctuation in walking in passive condition, this paper first calculates the curve of human centroid change of natural gait, and obtains that the extra work required by unit mass in one gait cycle change are 0.72 J. After that, the spring mass damping model is established, and the change curve of human centroid is taken as the system input, and the energy reduction and shock absorption ability of exoskeleton models with different natural frequencies under the premise of a certain load mass is obtained, at the same time, the load weight ratio curve and theoretical energy reduction efficiency curve required to achieve energy reduction effect under different damping ratios are drawn. That provides theoretical basis of designing structural stiffness and damping for related research, and has high application value.

show abstract

Section: Introductionmentioning

confidence: 99%

Response of Passive Exoskeleton to Torso Load under Natural Gait

2022

Proceedings of WCSE 2022 Spring Event: 2022 9th International Conference on Industrial Engineering and Applications

View full text Add to dashboard Cite

show abstract

“…Minor movement in the joint can be helped by a device that can moved passively and continuously. Thus, with passive and continuous movement can restore joint limitations or joint stiffness in patient post joint surgery [8] [9][10] [11].…”

Section: Introduction (Heading 1)mentioning

confidence: 99%

Design of a Continuous Passive Motion (CPM) Machine for Wrist Joint Therapy

Noviyanto

Septilianingtyas

Rahmawati

2021

jrc

View full text Add to dashboard Cite

Patients after joint surgery require passive movements that are carried out continuously. The movement is given to the patient to reduce the stiffness that occurs in the joints after joint surgery. Joint stiffness is characterized by pain and limited motion of the joint, which is caused due to reduced synovial fluid. Synovial fluid in the joints can be reduced if the joint is not moved in a long time. This research will design a wrist joint therapy machine that can be moved flexion, extension, ulnar and radial. Besides that, the device to be designed can be adjusted the angle of movement of the tool and the speed of movement of the tool. The angles of movement that can be reached are: (1) flexion movement: 80 ° movement angle, (2) extension movement: 75 ° movement angle, (3) radial movement: 25 ° movement angle, and (4) ulnar movement: movement angle 39 °. Adjustable speeds include: 1 RPM, 2 RPM and 3 RPM. In the result of testing device, we find the maximum difference of movement in 2° and the speed of rotation we have the difference in 0.5 second. Based on experiments that have been done, the tool can be controlled in accordance with the desired movement settings.

show abstract

“…Some CPM machine use On/Off control. However, some researchers using proportional integral and derivative (PID) controller, a linear and simple controller to control the CPM machine [20][21][22]. To handle the non-linear dynamics of the CPM, PID with Neural Network algorithm was also proposed [23].…”

Section: Introductionmentioning

confidence: 99%

Controlling a knee CPM machine using PID and iterative learning control algorithm

Maneetham

Sutyasadi

2020

TELKOMNIKA

View full text Add to dashboard Cite

A conventional continuous passive motion (CPM) machine uses simple controller such as On/Off controller. Some better CPMs use PID controller. These kind of CPMs can not distinguish load different due to the different size of the patient leg. This may cause the CPM no longer follow the trajectory or the angle commands. Meanwhile, each patient may have different scenario of therapy from the others. When progress on the patient exists, the range of the flexion may be increased step by step. Therefore, the treatment can be different in term of the range of flexion from time to time. This paper proposes CPM with hybrid proportional integral derivative (PID) and iterative learning controller (ILC). The system has capability in learning the trajectory tracking. Therefore, the CPM will be able to follow any load or trajectory changes applied to it. The more accurate CPM machine can follow the trajectory command, the better its performance for the treatment. The experiment showed that the system was stable due to the PID controller. The tracking performance also improved with the ILC even there exist some disturbances.

show abstract

Hand exoskeleton for continuous passive motion postoperative rehabilitation

Cited by 4 publications

References 17 publications

Response of Passive Exoskeleton to Torso Load under Natural Gait

Response of Passive Exoskeleton to Torso Load under Natural Gait

Design of a Continuous Passive Motion (CPM) Machine for Wrist Joint Therapy

Controlling a knee CPM machine using PID and iterative learning control algorithm

Contact Info

Product

Resources

About