MR Conditional needle and surface electrodes

摘要

MR conditional needle and surface electrode assemblies. The surface electrode utilizes a disc or cone-shaped structure with a bore with a concave bottom surface for receiving a conductive gel and an insulated wire with a connector for an EEG. The needle electrode assembly utilizes a cylindrical-shaped structure and is constructed of an MR conditional material having a needle and an insulated lead wire structure with a connector for an EEG.

主权项

1. An MR conditional needle electrode assembly comprising:
a) a hub structure having a periphery and formed of an MR conditional material; b) a needle extending outwardly from said periphery of said hub structure; c) an insulated flexible lead wire structure containing a signal carrying wire communicating with said needle, said insulated flexible lead wire structure extending from said hub structure and having a terminal end; d) a plug connected to said terminal end of said insulated flexible lead wire structure for connection to an EEG assembly; and e) a quick disconnect device incorporated in said insulated flexible lead wire structure and positioned between said hub structure and said plug, said quick disconnect device constructed to receive a plurality of said lead wire structures in an aligned configuration so that said lead wire structures remain in a parallel configuration with respect to each other into and extending from said quick disconnect device.