Connectors for high density neural interfaces

A lead assembly comprising:

• a first cable comprising a proximal end and a distal end;
• a second cable comprising a proximal end and a distal end;
• a connection assembly comprising:
• a first connector disposed at the proximal end of the first cable, the first connector comprising a core and a first supporting structure wrapped around at least a portion of the core, wherein:
• the first supporting structure comprises a first layer of high temperature liquid crystal polymer and a second layer of low temperature liquid crystal polymer that is reflowed to attach the first supporting structure to the core;
• first conductive traces are located between the first layer and the second layer, wherein the first conductive traces terminate at first conductive contacts formed on a surface of the first layer;
• a second connector disposed at the distal end of the second cable, the second connector comprising a second supporting structure, wherein:
• the second supporting structure comprises one or more second layers of polymer;
• second conductive traces are located between the one or more second layers, wherein the second conductive traces terminate at second conductive contacts formed on a surface of the one or more second layers;
• and
• a housing comprising:
• a first half portion, a second half portion, a proximal port, and a distal port, wherein the first cable is inserted into the connection assembly through the distal port, the second cable is inserted into the connection assembly through the proximal port, and the first half portion is attached to the second half portion with one or more attachment features, wherein the one or more attachment features hold the first connector in physical contact with the second connector such that the first conductive contacts are in electrical contact with the second conductive contact.