6 results about "Intracranial electrodes" patented technology

The application discloses a brain electric wire fixing band after intracranial electrode implantation, which effectively solves the problem of inconvenient wire fixation after operation of the patient with implanted electrodes; the brain electric wire fixing band comprises a winding band, a fixing ring is arranged at the left free end of the winding band, the winding band is in a circular ring shape and the right free end of the winding band penetrates through the fixing ring, a positioning air bag is fixed to the inner side of the winding band, connecting rings are respectively fixed to the left and right sides of the upper end of the winding band, a pressing band in the up-down direction is fixed to the middle part of the winding band, two anti-pressure air bags are fixed to the upper end of the winding band and are located between the two connecting rings, the pressing band is located between the two anti-pressure air bags, an inflation device is fixed to the right end of the winding band, the left end of the inflation device is communicated with the positioning air bag through a main air pipe, the upper side of the inflation device is communicated with the right anti-pressure air bag through a secondary air pipe, and the two anti-pressure air bags are communicated through a connecting pipe; the structure is simple, convenient to operate, novel in design and high in practicability.

Provided herein is a mesoscopic electrophysiological system including a structural system sized and configured to be attached to a head of a patient and to hold a plurality of intracranial electrode shafts in predetermined positions around the head of the patient, a plurality of mesoscopic intracranial electrode shafts that includes a first plurality of electrode contacts configured to measure local field potentials (LFPs) at a plurality of locations in a brain of a patient, wherein each electrode shaft of the plurality of intracranial electrode shafts includes a second plurality of electrode contacts, and a plurality of guide pins sized and configured to receive the plurality of mesoscopic intracranial electrode shafts positioned therein.

This invention discloses an implantable closed-loop neuromodulation system and method, relating to the field of neuroengineering, aiming to solve the problems of poor electrode adaptability and slow closed-loop response in existing implantable neuromodulation systems. The system includes intracranial electrodes, a one-to-one matching adapter plate for adapting different electrodes, a feedthrough component, and an implantable host fixed to the skull surface. The processing unit within the host decodes neural signals in real time within 10 ms to determine the brain state; if an abnormality is detected, the stimulation output unit selects a pattern from a preset safe stimulation pattern library to generate stimulation commands for intervention. This application achieves multi-electrode adaptation through the adapter plate and millisecond-level closed-loop response through high-speed processing, improving the timeliness and accuracy of intervention and enhancing safety.

The invention relates to an intelligent medical instrument, in particular to an electrode anatomy positioning system before intractable epilepsy lesion resection operation, which is used for solving the problems that before resection operation, intracranial electrode contact anatomy attribute judgment is lack of standards, classification depends on artificial experience and is difficult to repeat, and multi-modal images are lack of fusion and quantitative analysis. According to the scheme, brain segmentation is carried out based on a T1w image of a patient before electrode implantation, and each brain region segmentation image is made into a mask image; rigid body registration is carried out based on the brain CT with the implanted electrode and the T1w image, an electrode entry point and a target point are marked, an electrode contact is reconstructed, then the position of the contact is judged according to the coordinates of the electrode contact and the mask image, electrode classification and positioning are achieved, a doctor can conveniently distinguish the source of an intracranial electroencephalogram signal, and then the position of a focus is determined. In addition, the position relation and the metabolism condition of the electrode contacts and the cortex layers of the different brain partitions can be clearly checked by fusing multi-mode images.

This invention discloses a method, apparatus, system, medium, and product for generating intracranial electrode lead trajectories. The method includes: acquiring medical imaging data of a patient's brain after intracranial electrode lead implantation; extracting a set of feature points corresponding to the electrode lead from the medical imaging data; selecting a set of target feature points implanted in the patient's cranium from the set of feature points based on the trajectory characteristics of the electrode lead in the patient's cranium, wherein the trajectory characteristics at least indicate that the curvature of the electrode lead in the patient's cranium does not exceed a preset curvature value; and simulating the trajectory of the electrode lead in the patient's cranium based on the set of target feature points. This application utilizes the intracranial trajectory of the electrode lead to accurately identify the intracranial electrode lead portion. Through the points corresponding to the intracranial electrode lead portion, precise three-dimensional visualization rendering of the intracranial electrode lead is performed, enabling doctors to better understand the positional relationship between the intracranial electrode lead and surrounding nerve fiber bundles, which helps doctors optimize programming parameters and improve treatment outcomes.

The invention provides an interventional intracranial electrode bearing support, and belongs to the technical field of brain-computer interfaces in medical instruments. The stent comprises a stent body with a radial compression state and an expansion state, the stent body is used for being arranged at the set position of an intracranial blood vessel, a plurality of elastic supporting structures capable of deforming in various directions are arranged on the outer side wall of the stent body at intervals in the circumferential direction and / or the axial direction, and electrode plates are fixedly arranged at the ends, away from the stent body, of the elastic supporting structures; when the support body deforms, the elastic supporting structure is used for buffering deformation force in multiple directions so as to guarantee the position stability of the electrode plates. The electrode bearing support is mainly used for solving the technical problems that according to an existing electrode bearing support, the attaching stability of electrode plates is insufficient, the signal collection quality is affected, and the overall reliability of a system is reduced.