7 results about "Electroencephalogram electrode" patented technology

The application relates to the technical field of electroencephalogram signal collection, and discloses a manufacturing method of a semi-dry electrode, a semi-dry electrode and an electroencephalogram signal collection system. The manufacturing method comprises the following steps: pouring a preset amount of liquid gel into a pouring cavity of a pouring mold; the surface of a support is adapted to conduct electricity, and the support is provided with a contact part; inserting the contact part into the pouring cavity to wait for the gel to solidify, and a gap exists between the inner wall of the pouring cavity and the contact part; after the liquid gel is solidified, the solid gel adheres to the contact part to form an electroencephalogram electrode; when the electroencephalogram electrode is in close contact with the scalp, the surface of the scalp and the electroencephalogram electrode are in an electrically connected state. In actual application, the solidified gel can directly pass through the hair and be in close contact with the scalp, so that good electrical contact is formed between the surface of the scalp and the electroencephalogram electrode, and the accuracy of signal transmission is ensured. Therefore, the problem of short circuit between electrode points is avoided.

This utility model discloses an infrared electroencephalogram (EEG) electrode positioning device, comprising: a fixing component, including a fixing surface and an assembly surface, wherein the fixing surface is used for detachable fixing to a wall, and the assembly surface is provided with a first ball joint; an infrared probe for projecting red dots to the target electrode position; and an adjusting rod assembly, one end of which is rotatably connected to the first ball joint of the fixing component, and the other end of which is movably connected to the infrared probe. This utility model achieves detachable fixing to the wall through the fixing component, eliminating the need for drilling and preventing damage to the installation environment, thus solving the problems caused by traditional drilling fixing methods. The rotatable connection of one end of the adjusting rod assembly to the first ball joint of the fixing component allows the adjusting rod assembly to be adjusted in multiple directions. Compared with traditional rigid structure supports that only support single-direction adjustment, this better adapts to the multi-angle needs of different patient head shapes or complex surgical scenarios, improving the adjustability and flexibility of the support.

The utility model relates to electroencephalogram signal collection equipment technical field, especially a kind of non-invasive electroencephalogram electrode. The minimum thickness of current product shell is 0.9mm, and the thickness of the best comprehensive performance of conductive silicone is 0.7mm, and the conductive silicone of general electroencephalogram electrode is directly pressed and injected on copper contact, and the conductive silicone cannot completely adhere to head skin, which greatly affects the collection of electroencephalogram signal. The utility model provides a kind of non-invasive electroencephalogram electrode, tin paste layer and a tinned copper sheet are added between conductive silicone and copper contact, under the premise of keeping the elastic property and the best conductive performance of conductive silicone, the height difference of conductive silicone and product shell is eliminated, and the collection quality of electroencephalogram signal is improved.

The application belongs to the technical field of brain-computer interface, and particularly discloses a self-adaptive dynamic electroencephalogram electrode and a preparation method thereof. The electrode effectively solves the poor wearing comfort and mechanical mismatch under dynamic activities of the existing gel electrode. The electroencephalogram electrode has a three-layer structure from bottom to top, namely a contact layer, a buffer layer and a transmission layer. The contact layer is used for contacting biological tissues, the buffer layer is used for stress buffering and signal transmission, and the transmission layer is used for connecting electronic circuits. The modulus of the contact layer is 0.1-1 kPa, the modulus of the buffer layer is 1-10 kPa, and the modulus of the transmission layer is 10-100 kPa. The core material of the electroencephalogram electrode is a polyacrylic acid skeleton and metal ions. The application realizes the stepwise change of the mechanical properties of the single-component hydrogel from bottom to top, retains the dynamic reversibility and biological safety, and realizes non-invasive, high comfort and stable signal acquisition.

The utility model discloses an electroencephalogram electrode cap capable of preventing skin from being bruised, and aims to solve the problems that the conventional electrode cap is very easy to fall off when being worn, the skin is bruised after an electroencephalogram is finished, and the electrode cap is very uncomfortable to wear. The electrode cap comprises a cap body, the cap body comprises a hard outer layer and a flexible inner layer, a plurality of threaded holes are formed in the hard outer layer, mounting seats are in threaded connection with the interiors of the threaded holes, movable rods are slidably inserted into the mounting seats, electrode fixing holes are formed in the movable rods, one ends of the movable rods are fixedly connected with first limiting blocks, and the other ends of the movable rods are fixedly connected with second limiting blocks. The outer surface of the movable rod is sleeved with a spring. The position of the movable rod and the position of the electrode fixing hole can be adjusted, then the buffering air bags are inflated, and therefore the outer walls of the front buffering air bag and the rear buffering air bag are attached to the rear side of the head and the forehead of a patient, the head fixing device is suitable for heads of different sizes, it is guaranteed that the head fixing device is worn more properly, and the situations of falling off and bruising are avoided.

Sleep performance systems and methods of using the same are disclosed. The sleep performance systems can improve the quality of sleep by making one or more recommendations to the subject for increasing a sleep quality score. The sleep performance systems can have one or more electroencephalography (EEG) electrodes configured to measure a subject's brain activity during sleep. The sleep performance systems can have a processor configured to quantify the quality of the subject's slow-wave sleep by determining one or more sleep performance scores associated with the measured brain activity. The sleep performance systems can recommend and / or activate sleep improvement programs based on various threshold scores.

The application discloses an adjustable electroencephalogram electrode piece fixing device, and belongs to the technical field of medical auxiliary supplies, and is used for providing an adjustable electroencephalogram electrode piece fixing device more suitable for long hair wearers, comprising a head cover part, the head cover part is provided with a lead sleeve with an open lower end, the lead sleeve is provided with densely distributed threading holes, the lower end edge of the lead sleeve is provided with a tightening belt, the front side edge of the tightening belt and the bottom edge of the lead sleeve surround a face window, the rear side edge of the tightening belt and the bottom edge of the lead sleeve surround a neck window, the inner surface of the front side wall of the lead sleeve is fixedly connected with a head gasket, the inner surface of the tightening belt is fixedly connected with a neck gasket, and the rear side wall of the lead sleeve is provided with a gathering hole. The application sets the gathering hole structure of the plait on the rear side wall of the head cover part, utilizes the stable root of the tied plait to further constrain the head cover part itself, cooperates with the gasket structure with greater contact friction force, so that the fixing device can also be kept stable on the head of the long hair wearer.