11 results about "Spinal nerve" patented technology

The invention relates to the technical field of medical education equipment, and discloses a spinal cord injury teaching model with sensory-motion plane visualization and voice guidance functions. Comprising a human body model body, a plurality of red light emitting diodes, a plurality of blue light emitting diodes, a plurality of micro steering engines, a key input module, a main controller, a voice synthesis module and a rechargeable power supply, when a spinal nerve segment, a body side and a muscle strength level are selected through the key input module, the main controller controls all red light-emitting diodes or blue light-emitting diodes, located on the spinal nerve segment and above the spinal nerve segment, in the selected body side to be turned on. And the control module is used for controlling the voice synthesis module to play voice contents corresponding to the selected spinal nerve segment, the selected body side and the selected muscle strength level, and driving the micro steering engine corresponding to the key movement muscle in the selected body side to rotate to a preset angle corresponding to the selected muscle strength level. The control module is used for controlling the voice synthesis module to play the voice contents corresponding to the selected spinal nerve segment, the body side and the muscle strength level.

The invention discloses an exoskeleton robot or active power artificial limb joint angle prediction device and method. According to the method, electromyographic signals carrying neural information and inertial motion unit data carrying kinematics information are fused, information transmitted by spinal nerve and speed information in multi-modal data are utilized, and feature fusion and decoding are carried out; finally, the output is used for controlling intelligent rehabilitation equipment such as a lower limb exoskeleton robot and an active artificial limb. According to the method, the speed adaptability of the existing lower limb motion angle prediction based on the human body surface electromyogram signals is remarkably improved, and the engineering practical performance of the method is remarkably improved.

The application provides a small animal sciatic nerve magnetic resonance coil and an imaging method, and the method comprises the following steps: filling a high-concentration sugar syrup solution at the bottom of the magnetic resonance coil and performing constant temperature control; placing a small animal in a prone position in the high-concentration sugar syrup solution and discharging air in the gap between the lower limbs and below the abdomen of the small animal; after performing magnetic resonance positioning scanning to determine the main sequence scanning range, starting the main sequence scanning, suppressing the flow tissue signal through a pre-pulse combination, exciting the tissue by using a radio frequency pulse with preset parameters, acquiring echo signals by combining a fast spin echo technology and filling K space, and obtaining scanning original data; performing preprocessing on the scanning original data and accurate segmentation of the sciatic nerve and spinal nerve to obtain a segmentation result; and completing three-dimensional model reconstruction, optimization and multi-modal fusion visualization based on the segmentation result to obtain an image scanning result. The application is suitable for small animals, is accurate in imaging, can effectively suppress various kinds of artifacts, and can be widely applied to sciatic nerve imaging scenarios of small animals.

The utility model provides a spinal nerve distribution point teaching model control circuit, comprising at least one touch unit used for sensing a touch action to generate a touch signal; the control unit is used for responding to the touch signal to generate a corresponding first signal, and the first signal is at least used for recording touch position information; the signal conversion unit is used for converting the first signal into a second signal and sending the second signal to external equipment, or is used for receiving a third signal sent by the external equipment, converting the third signal into a fourth signal and then transmitting the fourth signal to the control unit; the touch unit and the signal conversion unit are both in communication connection with the control unit; by adopting the spinal nerve distribution point teaching model control circuit of the utility model, the communication function between the control unit and the external equipment is realized. The learning progress of a user can be recorded, related functions of the teaching model can be controlled through external equipment, and the defects that an existing teaching model is single in control means and cannot record the learning progress are effectively overcome.

This disclosure relates to a flexible electrode for the spinal cord and a method for manufacturing the same. A flexible electrode for the spinal cord is provided, comprising: an attachment portion configured to be able to be placed on the white matter lateral to the epidural space or intradural space, and configured to acquire or apply electrical signals to the surface of the spinal cord; wherein the attachment portion of the flexible electrode includes a first insulating layer and a second insulating layer, and a conductive layer located between the first insulating layer and the second insulating layer; wherein the attachment portion of the flexible electrode further includes one or more electrode sites, each electrode site being electrically coupled to one of the conductive wires in the conductive layer, and contacting the spinal cord after implantation of the flexible electrode to acquire electrical signals from spinal nerves and transmit the acquired electrical signals through the conductive wires, or to apply electrical signals received through the conductive wires to spinal nerves.

The invention relates to application of a Xiaji acupoint electroacupuncture in preparation of equipment for treating Parkinson's frozen gait, and belongs to the technical field of modernization of traditional Chinese medicine. A traditional Chinese medicine acupuncture technology and a modern electroacupuncture technology are combined, a new application of electroacupuncture is provided, electroacupuncture is adopted to stimulate a spine point area, an electric signal is transmitted to a center through anterior and posterior spines of spinal nerves, release of dopamine in a basal node is promoted, signal inhibition of a cortex auxiliary movement area is relieved, and the aim of treating the spines is achieved. Excitation input of anterior spinal horn motor neurons is increased, so that contraction of skeletal muscles is triggered, movement retardation and frozen gaits of Parkinson's disease patients are improved, pathological neural circuits of PD are rapidly broken, nerve functions are remodeled through long-term stimulation, and a new path is provided for drug or DBS refractory dyskinesia and frozen gaits.

This application relates to a brain-computer interface (BCI) control system and method. Its wireless power supply transmitter transmits energy through the skin at a frequency of 6.78MHz via magnetic resonance coupling to an implantable BCI controller (ICU) within the body. This allows the ICU to power an implantable brain signal acquisition unit (NRU) and an implantable spinal nerve stimulator (NSU) based on the received energy, enabling wireless power supply to implantable medical devices such as the NRU and NSU. Furthermore, the external BCI controller (ECU) and the implantable ICU communicate wirelessly for motion feedback and control, achieving a closed-loop control system of "perception-decision-feedback-adjustment," thereby improving the accuracy and adaptability of motion control.

The invention discloses an endoscope for spinal surgery. According to the technical scheme, the endoscope is characterized by comprising a main body, the accessory connecting part is arranged on the main body and is used for connecting a functional module; one end of the sheathing canal is fixedly connected to the main body, the other end of the sheathing canal extends in the direction far away from the main body, and the end, far away from the main body, of the sheathing canal is arranged as a surgical end and extends to a surgical site; the retraction tube is arranged outside the sheath tube in a sleeving manner; the retraction assembly is arranged on the retraction tube, and the retraction assembly is used for retracting spinal nerves at the surgical end of the sheathing canal; through the arrangement of the retracting assembly, a doctor can retract spinal nerves only by operating the endoscope, so that the operation convenience is improved, and an operation can be conveniently carried out in a narrow area.

The invention relates to the technical field of nerve tract recognition, in particular to a spinal nerve tract injury assessment method based on diffusion tensor imaging. The method comprises the following steps: firstly, acquiring diffusion tensor imaging data of a spinal cord part of a patient, and constructing a fault-tolerant attraction domain based on atlas registration and morphological dilation processing so as to overcome anatomical positioning errors; determining an individualized liquefaction entropy reference according to entropy distribution of the high-diffusion sample set, and respectively constructing a conduction resistance field and a microstructure confusion field; constructing a nonlinear suppression weight by using an entropy reference to carry out weighted coupling on the resistance field, and generating a cost field for suppressing liquefaction artifacts, so that a liquefaction region is converted into a high-resistance barrier; executing anisotropic path finding based on the cost field in the fault-tolerant attraction domain to obtain an optimal transmission path; and finally, extracting multi-dimensional features of the path, and determining the functional state of the neural pathway in combination with hierarchical logic. According to the method, liquefaction artifact interference can be effectively eliminated, and adaptive and refined quantitative evaluation of the spinal nerve tract injury state is realized.

The invention discloses a comprehensive testing device for sciatic nerve trunks, motor nerves and skeletal muscles. The comprehensive testing device comprises a specimen bearing assembly composed of PU plates, an electrophysiological signal collecting and stimulating assembly composed of acupuncture needles and miniature alligator clips, and a muscular tension testing assembly composed of a support and a tension transducer. The PU plate can fix an in-vitro spine-spinal nerve-sciatic nerve trunk-tibial nerve-gastrocnemius muscle integrated active specimen of a frog, and the acupuncture needle can puncture an adventitia and is arranged between nerve fascia membranes or puncture an adventitia of skeletal muscle and is arranged between muscular fascia membranes and is connected with a biological function data analyzer, so that electrical stimulation application and electric signal and electromyographic signal acquisition are realized, and the biological function data analyzer is connected with a biological function data analyzer. The tension transducer is connected with the specimen and synchronously collects muscular tension signals. Neural and muscle testing functions are integrated, the use amount of experimental animals is reduced, the signal-to-noise ratio of signals is increased through acupuncture needle puncture type collection, the PU plate is flexible in adaptation, the electrode distance is adjustable, and neural electrophysiological signals and muscular tension signals can be synchronously obtained.

The invention discloses application of magnolol and pharmaceutically acceptable salts thereof in inhibiting bone marrow-derived foam macrophage chronic inflammation after spinal cord injury. The invention provides application of magnolol in preparation of drugs for promoting discharge of macrophage lipid, drugs for promoting spinal cord injury repair, drugs for inhibiting lipid accumulation mediated secondary inflammation after spinal cord injury or neuroprotection drugs. The invention further provides a spinal cord injury repairing drug containing magnolol, a drug or reagent for promoting macrophage lipid excretion and a spinal cord inflammation inhibiting drug. According to the application disclosed by the invention, the magnolol is disclosed for the first time by regulating immune cell lipid excretion-inflammatory factor axis, so that the spinal nerve regeneration is obviously promoted, the nerve function is improved, the inflammatory reaction after lipid overload is relieved, and the spinal cord tissue is protected, and an innovative strategy is provided for spinal cord injury treatment. The magnolol synergistically intervenes the secondary neurodegenerative disease after spinal cord injury by improving lipid overload and immune dual pathways, and a brand new direction is provided for SCI treatment.