An assistive robotic glove is any powered device that helps someone with weakness or too little movement within their natural hand to understand objects.
The device can be a glove or it could be a hand exoskeleton — it doesn't matter. The main feature is to augment the user's grasping capabilities.
This really is usually necessary since the natural hand has lost function as a result of paralysis, arthritis, or another disease or injury. Design Considerations for Assistive Robotic Gloves
You will find two driving considerations when designing assistive robotic gloves:
The user's amount of movement and/or strength in the natural hand. The truth that the natural hand is still present.
The degree of movement and/or strength in the natural hand is very important because it dictates the degree of required augmentation. If the natural hand has complete movement but is weak, the design requirement is merely to tighten or strengthen the hand's grip following the thumb and fingers have moved into a grasping position. The NUADA glove is a superb example of this design. It never forces the digits to maneuver but it could augment the user's grip sufficiently to lift 40 kilograms, which can be roughly comparable to the unisex average maximum grip force of an all-natural hand.
If the consumer cannot move his hand, then your assistive device must move it for him. In cases like this, designers should be careful not to damage the natural hand.
Note the way the Neomano will force the user's index and middle fingers to close but only under direct control via control buttons. Also, the grip strength is limited by a lift capacity of only 2 kilograms, so even though an individual accidentally forces the fingers to close at the wrong time, that is unlikely to cause injury.
There's an added subtlety to the glove: the user will need to have the capability to at the least relax his fingers to help open them. This is because the glove cannot force the fingers open. It can only help close them. When the user causes the glove release a an object, all it will is basically release the strain that has been previously placed on the fingers via the artificial tendons. The fingers will need to have sufficient mobility to make the most of this relaxed state.