- The size of the device of at most approximately 65 cm length, 35cm width, and 15 cm depth should easily fit into a backpack or suitcase. The weight of all the parts of the device should be less than 20 pounds such that an occupational therapist can carry it. Any parts that the patient must wear on his or her hand must weigh less than 0.2 kg and not be much larger than a typical glove or hand accessory.
- Current budget allows for at least $2000 dollars (based on our client, Dr. Carter, and his lab’s contributions) for the project. Additional funding will be obtained through grants and competitions.
- The device should be safe to use and not worsen the condition or cause bodily injury through use. For example, the intensity of the feedback should not be too high that would cause damage to the retina, induce seizures, or cause damage to the ear. Some specifications include no sharp edges on the device and no exposed electrical parts that could result in electrocution.
- The device should work for adult patients and at least work with the right hand for fingers and the wrist. At a minimum the device should be able to detect 10 degrees of displacement at the finger and wrist joints.
- The device should provide visual, auditory or tactile feedback. Feedback delay from the time of input to the time of output should be less than 100 milliseconds to allow for the best learning environment.
- The power source should be able to provide energy for a typical rehabilitation session (approximately 30 minutes). The device should last at least a month, should be cleanable if in contact with the patient, and not contain moving parts that would break easily if knocked into. The device should be comfortable and not induce chafing of the skin, and should not cause pain due to swelling.
- The tasks should be difficult enough such that there is a 70% success rate. There should be enough repetitions. The patient should be engaged to participate in the activity for at least 20 minutes.
- Setup time for the device should be less than 5% of the therapy time and should be easy to learn how to set up. A manual describing how the device should be set up will be created.