A neural interface circuit for bidirectional signal transmission includes at least one electrode configured to collect a neural signal and receive an excitation signal. The neural interface circuit can transmit signals bidirectionally. On the one hand, neural signals can be collected through electrodes, and on the other hand, excitation signals can be received through electrodes. The excitation signals can achieve the purpose of researching or intervening treatment.

A composite microneedle structure based on an integrated circuit chip includes a microstrip line, at least one microprobe and at least one integrated circuit chip. The microprobe includes a hard needle and a soft needle, the soft needle is fixed to an upper surface of the hard needle by a fixed structural member, and the integrated circuit chip is provided at a tail of the microprobe; the integrated circuit chip and the soft needle of the microprobe are fixed to form an electrical connection, and the microstrip line and one end of the integrated circuit chip are fixed to form the electrical connection.

A neurodiagnostic needle electrode pair assembly is provided that includes a pair of needle electrodes and a recovered dual-wall heat shrink tube. The needle electrodes are connected to a pair of leadwires by respective electrical connections between proximal ends of the needle electrodes and distal ends of the leadwires. The recovered dual-wall heat shrink tube covers the proximal ends of the needle electrodes, the respective electrical connections and the distal ends of the leadwires. The recovered dual-wall heat shrink tube includes an inner lining of adhesive that secures the needle electrodes in a fixed, spaced apart relationship. A mold for a neurodiagnostic needle electrode pair assembly and a method of manufacturing a neurodiagnostic needle electrode pair assembly are also provided.

A neurodiagnostic needle electrode pair assembly is provided that includes a pair of needle electrodes and a recovered dual-wall heat shrink tube. The needle electrodes are connected to a pair of leadwires by respective electrical connections between proximal ends of the needle electrodes and distal ends of the leadwires. The recovered dual-wall heat shrink tube covers the proximal ends of the needle electrodes, the respective electrical connections and the distal ends of the leadwires. The recovered dual-wall heat shrink tube includes an inner lining of adhesive that secures the needle electrodes in a fixed, spaced apart relationship. A mold for a neurodiagnostic needle electrode pair assembly and a method of manufacturing a neurodiagnostic needle electrode pair assembly are also provided.

A flexible micro-needle electrode for biopotential monitoring, a method for constructing the flexible micro-needle electrode and a patch electrode comprising the flexible micro-needle electrode. The method comprises the steps of providing a negative stamp that has been structured with a plurality of micro-needle structures; depositing at least one layer of electrically conductive material onto the negative stamp; and peeling off the at least one layer of electrically conductive material from the negative stamp to obtain the flexible micro-needle electrode comprising the at least one layer of electrically conductive material defined with the plurality of micro-needle structures.

A flexible micro-needle electrode for biopotential monitoring, a method for constructing the flexible micro-needle electrode and a patch electrode comprising the flexible micro-needle electrode. The method comprises the steps of providing a negative stamp that has been structured with a plurality of micro-needle structures; depositing at least one layer of electrically conductive material onto the negative stamp; and peeling off the at least one layer of electrically conductive material from the negative stamp to obtain the flexible micro-needle electrode comprising the at least one layer of electrically conductive material defined with the plurality of micro-needle structures.

A method for controlling a signal acquisition electrode, an electroencephalogram, EEG, signal acquisition apparatus, and a medium are provided. The signal acquisition electrode is movably connected to a wearable component of the EEG signal acquisition apparatus. The wearable component is adapted to be worn on a head of a user, and the EEG signal acquisition apparatus further includes a pushing component. The method includes: controlling, when a contact impedance between the signal acquisition electrode and the head is greater than or equal to a first impedance threshold, the pushing component to push the signal acquisition electrode to move towards the head to acquire an EEG signal by using the signal acquisition electrode.

A method for controlling a signal acquisition electrode, an electroencephalogram, EEG, signal acquisition apparatus, and a medium are provided. The signal acquisition electrode is movably connected to a wearable component of the EEG signal acquisition apparatus. The wearable component is adapted to be worn on a head of a user, and the EEG signal acquisition apparatus further includes a pushing component. The method includes: controlling, when a contact impedance between the signal acquisition electrode and the head is greater than or equal to a first impedance threshold, the pushing component to push the signal acquisition electrode to move towards the head to acquire an EEG signal by using the signal acquisition electrode.

A system for detecting strokes includes a sensor device configured to obtain physiological data from a patient, for example brain activity data. The sensor device can include electrodes configured to be disposed at the back of the patient's neck or base of the skull. The electrodes can detect electrical signals corresponding to brain activity in the P3, Pz, and/or P4 brain regions or other brain regions. A computing device communicatively coupled to the sensor device is configured to receive the physiological data and analyze it to indicate whether the patient has suffered a stroke.

A flexible neural electrode composite structure and a manufacturing and an implantation method therefor are provided. The flexible neural electrode composite structure includes: a plurality of flexible neural electrodes, each flexible neural electrode including an implant portion and an auxiliary structure provided at the implant portion; an auxiliary implantation assembly, which includes a plurality of auxiliary implantation needles corresponding to the plurality of flexible neural electrodes on a one-to-one basis, wherein each auxiliary implantation needle includes an auxiliary implantation end located close to one end of a corresponding flexible neural electrode, and the auxiliary implantation end is configured to be assembled with the auxiliary structure corresponding thereto; and a fixture, which is configured to fix the assembled auxiliary implantation ends and auxiliary structures.