High-tech bionic arm chest "connected" can know hot and cold
Release date: 2007-11-30
High-tech bionic arm chest "connected" can know hot and cold
According to China Daily, a hospital in the United States recently installed a new high-tech bionic arm for the 60-year-old Han Sullivan and the 27-year-old veteran Michelle. According to Dr. Kuken, the researcher of the new bionic arm, with this bionic arm, the disabled can feel different touches from the wrist, palm and back of the hand by stimulating different parts of the chest.
This bionic arm is equipped with a pressure sensor that transmits the contact signal to the inductive receiver under the skin of the chest and creates a faint tingling that allows them to touch the object through the chest. Of course, since the chest skin itself has tactile nerve cells, the signals they send sometimes mix with the stimulus from the bionic arm, and even cover the latter. However, as long as the contact pressure of the arm is increased, Sullivan and Michelle can distinguish it from the touch of the chest itself. In addition to stress, they can even distinguish between hot and cold temperatures and feel pain.
Dr. Kuken said that users of this bionic arm can manipulate the robotic arm through the brain. Through surgery, the nerve at the stump of the disabled person is connected to the chest muscle group, so that the muscle group can receive and amplify the electronic pulse emitted from the brain, and then pass it to the sensor on the bionic arm to control Its movement. Here, the pectoral muscle acts as a signal "transfer station" and "amplifier". ——Shanghai Medical Device Industry Association website
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