Top cover component, pulse generator and implantable electrical stimulation system

Abstract

The invention provides a top cover component, a pulse generator and an implantable electrical stimulation system. The top cover component comprises a connector, an intermediate sealing ring and a locking member for locking an insertion end, wherein the connector, the intermediate sealing ring and the locking member are connected in a sleeved manner, and each has electrode through holes allowing electrodes to pass through; and a plurality of the electrode through holes form a matching cavity matched with the insertion end. The top cover component further comprises a top cover body having an accommodating groove, wherein a first glue dispensing groove is formed in the accommodating groove corresponding to the periphery of the intermediate sealing ring; and the top cover body is sealed and fixed to the connector, the intermediate sealing ring and the locking member by means of liquid silicone rubber. By adopting the design, firstly, the sleeved matching can ensure the coaxiality of the parts and prevent the entry of the liquid silicone rubber; secondly, filling and solidification of the liquid silicone rubber are realized by forming the first glue dispensing groove, and the liquid silicone rubber is combined with the intermediate sealing ring to isolate the adjacent connectors completely; thirdly, the positioning and anti-releasing structure is formed with the top cover body, thereby ensuring the positional precision and preventing the parts from disengaging from the end part of the top cover body.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a top cover component, a pulse generator and an implanted electrical stimulation system. Background technique [0002] An implantable electrical nerve stimulation system is an active implantable medical device, which generally consists of three parts: a pulse generator, an extension lead, and an electrode lead. Depending on the actual application of the system, it may only include the pulse generator and electrodes. The wire has two parts. The implantable nerve electrical stimulation system excites, inhibits or mediates the conduction of the nervous system through electrical stimulation, so as to achieve the therapeutic effect of restoring or improving the function of the human body. Compared with traditional surgical destructive surgery, implantable nerve electrical stimulation therapy is safe and reversible, and has obvious curative effect, and has been more and more u...

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the large number of connectors in the top cover part in the prior art, which leads to the problem that the normal operation is easily affected by the failure of the seal between the connecting contacts and the problem between the connectors. positional offset problem

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