Bciflex Medical Technology Co., Ltd.

Beijing Bciflex Medical Technology Co., Ltd.

Huihui Tian

Guiqiang Yang

Qian Li

Jinfen Wang

Dawei Wang

Qi Song

Bo Zeng

Wenbo Gu

Kaihan Wei

Chengli Li

Rongfeng Zhang

Xiudong Lu

The present application provides an implantation system and method for implanting a flexible neural electrode. The implantation system comprises a flexible neural electrode and an auxiliary implantation assembly. The flexible neural electrode is provided with an auxiliary implantation part. The auxiliary implantation assembly comprises a cannula assembly and a guide wire, the cannula assembly comprises an inner cannula and an outer cannula, the guide wire has a retracted state in which it is retracted within the inner cannula and an extended state in which it penetrates out of a distal end of the inner cannula, and an extended end of the guide wire is connected to the auxiliary implantation part. Wherein, when the guide wire is in the retracted state, the flexible neural electrode is in a curled state in which it is curled between the inner cannula and the outer cannula; when the guide wire is in the extended state, the flexible neural electrode moves to an intended target area along with the guide wire and unfolds, so as to transition from the curled state to an unfolded state. The above structure can achieve the objective of implantation through a small slit on the target object, and can ensure precise implantation and flat adherence of flexible neural electrodes on the surface of the implant by strategy of the auxiliary implantation assemblies.

Implantation system and method for implanting flexible neural electrode

A nerve stimulator. The nerve stimulator includes: a mid-shell, a stimulation acquisition module mounted within the mid-shell, a feed-through component being disposed on an end surface of the mid-shell and being electrically connected to the stimulation acquisition module, a mounting cover being mounted on the end surface of the mid-shell and covering an outer side of the feed-through component, and a flexible electrode being connected to one side of the feed-through component toward the mounting cover and extending from the end surface to an side surface of the mid-shell. The nerve stimulator of the embodiment of the present disclosure adopts a miniature installation design, which effectively reduces damage to tissues and facilitates the expansion of the number of electrode channels. In addition, the overall sealing property of the device is significantly improved by the multi-layer sealing structure.

Nerve stimulator

An implantable flexible electrode includes an implantation assembly and a proximal contact part. The implantation assembly is made of a flexible material, and includes an auxiliary implantation part, a microelectrode part, a macroelectrode part, and a lead part electrically connected to the microelectrode part and the macroelectrode part, a macroelectrode site of the macroelectrode part is used to record local field potential information after implantation, a microelectrode site of the microelectrode part is used to record single-unit action potential information, and the dimension of an end of the microelectrode part distal to the macroelectrode part is smaller than the dimension of an end of the microelectrode part proximal to the macroelectrode part. The proximal contact part is electrically connected to the lead part. The implantable flexible electrode enables simultaneous recording of local field potential information and single-unit action potential information to provide comprehensive information about neural activity.

Implantable flexible electrode, device, and kit

The present application provides an auxiliary implantation assembly, kit and system for flexible neural electrode, comprising: a cannula having a longitudinal cavity, and a tube wall at the distal end of the cannula configured to form a contact area larger than a first threshold to realize the pressing and limiting against the distal part in a case where the cannula is fixed and contacts the distal part of the flexible neural electrode; and a traction member extending in the longitudinal direction, the distal end of which is formed with a traction part and is configured to form a first physical connection mechanism with the proximal end of the cannula, the first physical connection mechanism is switchable between a locked state and an unlocked state by means of the proximal operation of the traction member.

Auxiliary implantation assembly, kit, and system for flexible neural electrodes

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Beijing, China

Huihui Tian