3results about How to "Eliminate the step effect" patented technology

This invention relates to the field of medical signal processing technology, specifically disclosing an AI-assisted diagnostic method and system for Parkinson's disease based on brain networks. The method includes: acquiring continuously collected temporal signals from the brain and establishing a discrete sequence; establishing an effective window set through signal activity screening; evaluating the temporal connectivity of the effective window set to obtain a steady-state data stream; analyzing the phase synchronization index and determining significant functional coupling to construct a topological confidence structure of the brain network; establishing an equivalent resistance model based on the topological confidence structure, outputting global conductivity, and tracking potential energy drops to establish a transmission cost subgraph; and performing gridded density analysis based on the transmission cost subgraph to obtain spatial damping distribution and evaluate the brain network's operational state. The system includes: a signal acquisition module, a temporal evaluation module, a confidence analysis module, a blockage analysis module, and a state evaluation module. This invention is beneficial for assisting in the diagnosis of Parkinson's disease and providing data support.

The utility model relates to the technical field of graphene, and provides a graphene heating pad for automotive trim, which comprises a packaging plate, a heating circuit board is arranged in the middle of the packaging plate, a graphene plate is arranged on one side, far away from the heating circuit board, of the packaging plate, and the packaging plate comprises a first packaging plate and a second packaging plate. The heating circuit board is located between the first packaging plate and the second packaging plate, and a net-shaped plate is arranged between the heating circuit board and the second packaging plate; gaps in the heating circuit board are effectively filled through the net-shaped plate, so that the heat distribution efficiency can be improved by reducing the gaps of the heating circuit board, namely, the heat flowing in the gaps of the heating circuit board is reduced, and the heat distribution is more uniform; on the other hand, the step effect caused by the gaps is relieved, that is, the gaps of the heating circuit board are filled with the net-shaped plate, and the gaps of the heating circuit board are reduced, so that the overall appearance of the heating pad is smoother as a whole, and the attractiveness of the product is improved.

The retrograde tracheal intubation device comprises a tracheal catheter main body, a built-in guide tube core, a one-way locking mechanism and a special traction guide wire, the tracheal catheter main body is a flexible hollow tube body, the built-in guide tube core is arranged in the tracheal catheter main body, a variable-diameter conical head is arranged at the far end of the built-in guide tube core, and the one-way locking mechanism is arranged at the tail end of the built-in guide tube core. The one-way locking mechanism is arranged in the reducing conical head and used for achieving one-way mechanical locking. The special traction guide wire comprises a wire body, the middle section of the wire body is provided with a traction protrusion, and the radial size of the traction protrusion is smaller than the hole diameter of the center through hole. And meanwhile, a transition air bag and a clamping air bag which are matched with each other are also arranged. By pulling the special traction guide wire at one end of the cricothyroid membrane, the built-in guide tube core and the tracheal catheter main body can sequentially pass through the glottis under the action of the traction bulge.