Closed-loop spinal cord electrical stimulation system
US12023493B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 9, 2020 |
| Grant date | Jul 2, 2024 |
| Priority date | — |
| Expiry date | Jan 10, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2503/42
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A closed-loop spinal cord electrical stimulation system includes a spinal epidural electrical stimulation electrode, a low limb electrical stimulation electrode, a closed-loop electrical stimulator and a controller. The spinal epidural electrical stimulation electrode, the low limb electrical stimulation electrode and the controller are electrically connected to the closed-loop electrical stimulator respectively. The spinal epidural electrical stimulation electrode is used for applying a first electrical stimulation to the spinal epidural site, and the low limb electrical stimulation electrode is used for applying a second electrical stimulation to a low limb. The voltage of the first electric stimulation is 400-600 mV, the voltage of the second electric stimulation is 1 V-1.5 V, and the stimulation frequency of the both is 10-20 Hz. The stimulation system can send electrophysiological signals similar to sensorimotor neural circuitry to the subject with spinal cord injury, and can activate and remodel the neural circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.