Virtual reality based rehabilitation

WHAT ARE THE DIFFERENT TYPES OF ROBOTIC DEVICES AVAILABLE IN THE FIELD OF PHYSICAL MEDICINE AND REHABILITATION ?

OR

WRITE A NOTE ON REHABILITATION ROBOTICS ?

A 12 INTRODUCTION

Use of robotics - Also kn as Rehabilitation robotics

DEFINITION

1 Rehabilitation robotics is a field of research dedicated to understanding and augmenting rehabilitation through the application of robotic devices.

2 Rehabilitation robotics includes -

A ) development of robotic devices tailored for assisting different sensorimotor functions (e.g. arm, hand,leg, ankle)

B ) development of different schemes of assisting therapeutic training and

C ) assessment of sensorimotor performance (ability to move) of patient

3 Rehabilitation using robotics is generally well tolerated by patients, and has been found to be an effective adjunct to therapy in individuals suffering from motor impairments, especially due to stroke.

4 Rehabilitation robotics can be considered a specific focus of biomedical engineering, and a part of human-robot interaction.

5 Rehabilitation robots are designed with applications of techniques that determine the adaptability level of the patient.

CLASSIFICATION

four types -

A ) augmentative manipulation (wheelchairs, workstation, power-feeder, mobile robots, robotic orthoses, and robotic room)

B ) augmentative mobility (robotic wheelchairs, mobility aids for visually impaired people, and walking support systems for the elderly)

C ) therapy robots and

D ) robots for help care-givers

MECHANISM / MODE OF ACTION

1 attempts to leverage the principles of neuroplasticity by improving quality of movement, and increasing the intensity and repetition of the task

2 Has 5 types of action based upon the adaptability level of the patient - performance based progressive algorithm

A ) The responsive software allows the robot to alter the amount of assistance it provides, based on the patient’s speed and timing of movement.

B ) This allows for a more personalized treatment session without the need for constant therapist interaction )

Techniques include

A ) active assisted exercise -

In active assisted exercise, the patient moves his or her hand in a predetermined pathway without any force pushing against it

B ) active constrained exercise -

Active constrained exercise is the movement of the patient’s arm with an opposing force; if it tries to move outside of what it is supposed to.

C ) active resistive exercise - Active resistive exercise is the movement with opposing force

These machines MIT-Manus, Bi-Manu-Track and MIME make the active resistive exercise possible.

D ) passive exercise - Passive exercise needs to be pushed from the patient

and

E ) adaptive exercise -

Finally, an adaptive exercise is an excessive workout that the robot has never done and is adapting to the new unknown pathway.

These devices Bi-ManuTrack and MIME support the adaptive exercise possible. The active constrained exercise is supported by all the machines that are mentioned

3 The vertical, anti-gravity setting - is particularly useful for improving shoulder and elbow function.

ADVANTAGES

1 REPITITION IS THE KEY - provides multiple and effective repititions

2 MEASUREMENT - PRE AND POST can be taken earlier

3 No excessive physical work

DIFFERENT TYPES OF REHABILITATION ROBOTICS

A ) FOR UPPER EXTREMITY ( HAND )

1 ROBOTIC HAND -

A ) The robotic hand is controlled by EMG signals in the forearm muscles, meaning that patients can move their hand using only their brain.

B ) The device also has a continuous passive motion mode, where the actions of hand opening and closing are done involuntarily

2 AMADEO -

A ) The hand rehabilitation robot called AMADEO offers a range of rehabilitation strategies including passive, assistive, ROM, force and haptic training.

B ) FOR UPPER EXTREMITY ( ARM )

1 DIEGO

A ) The arm rehabilitation robot called DIEGO offers bilateral arm therapy including assistive force for weight reduction and full 3D tracking of the arm movement for augemented feedback training in a virtual reality environment.

2 IN MOTION2

A ) allows participates to practice reaching movement in horizontal plane with a reduction of gravity.

B ) The motions that are performed require shoulder flexion and extension and external rotation.

C ) It is very easy to set up the usage of this robot.

D ) The procedure of using this robot is the following -

1 The participant sits down at a desk and places her or his into a trough.

2 Then the participants’ looks at a computer screen and try to reach out for the target.

3 As you are reaching out for the target the device gives guidance so that your therapy can be successful.

C ) FOR LOWER EXTREMITY

1 HIP BOT -

A ) The Hipbot is a robot used in patients with limited mobility.

B ) The hip is an important joint in the human body, it supports our weight and allows the movement and statically position.

C ) When people suffer a fracture by an accident or have problems in this location, need to improve a rehabilitation process.

1 This robot helps in this cases, because it combines movements of abduction/adduction and flexion/extension that help the patients to restore their mobility.

2 The robot has 5 degree of freedom mechanism necessary to all positions for the rehab, it is controlled by a PID controller and can be used for both legs ( v imp ).

2 Exoskeleton limbs -

A ) Tibion Bionic Leg

B ) the Myomo Neuro-robotic System, MRISAR’s STRAC (Symbiotic Terrain Robotic Assist Chair) and

C ) the Berkeley Bionics eLegs

D ) enhanced treadmills such as Hocoma’s Lokomat

D ) For improving balance , walking and other motor functions - VIRTUAL REALITY BASED REHABILITATION

SUCH AS -

A ) Multiple sclerosis

B ) TBI

C ) SCI

3 ANKLE - RUTZER ANKLE