Multiple electrode holders for indicating nerve responses to stimulation

Claim 1

AN APPARATUS FOR PERMANENTLY RETAINING ELECTRODE LEADS IMPLANTED IN THE BRAIN OF AN EXPERIMENTAL ANIMAL WHICH IS EMPLOYED IN CONJUNCTION WITH ELECTROENCEPHALOGRAPHIC-INDICATING INSTRUMENTALITIES, TO STIMULATE THE ANIMAL AND TO OBTAIN REPEATED ELECTROENCEPHALOGRAMS OF THE ANIMAL OVER AN EXTENDED PERIOD OF TIME COMPRISING: (A) A PEDESTAL HAVING, (1) A FLANGE SHAPED TO FIT SNUGLY THE SKULL OF THE ANIMAL AND ADAPTED TO BE BOLTED THERETO; (2) A SOCKET AT THE END OF THE PEDESTAL OPPOSITE SAID FLANGE; (3) A LONGITUDINAL PASSAGE THROUGH THE PEDESTAL, (B) A CUP MEMBER FITTED AND LOCKED WITHIN THE PEDESTAL SOCKET HAVING, (1) A LONGITUDINAL PASSAGE REGISTERING WITH THE PASSAGE IN THE PEDESTAL; (2) AT ONE END, A PLURALITY OF SLOTS COMMUNICATING WITH THE LONGITUDINAL PASSAGE; (C) A PLURALITY OF ELECTRODE LEADS ADAPTED TO BE IMPLANTED IN THE ANIMAL''S BRAIN AT ONE END AND PASSING THROUGH THE LONGITUDINAL PASSAGES IN SAID PEDESTAL AND CUP MEMBER, THE SECOND END OF EACH ELECTRODE LEAD TERMINATING IN ONE OF SAID SLOTS OF SAID CUP MEMBER; (D) SOLIDIFIED CONDUCTIVE MATERIAL OVERLYING AN EXPOSED PORTION OF THE ELECTRODE LEAD IN EACH OF THE SLOTS OF SAID CUP MEMBER; (E) SEPARABLE CONNECTOR MEANS FOR SELECTIVELY CONNECTING AND DISCONNECTING THE SAID ELECTRODE LEADS TO AND FROM THE AFORESAID ELECTROENCEPHALORGRAPHIC-INDICATING INSTRUMENTALITIES COMPRISING, (1) A WIPING CONTACT MEMBER HAVING A PLURALITY OF SPRING PRESSED CONTACT ELEMENTS EACH ADAPTED TO MAKE ELECTRICAL CONTACT WITH THE SOLIDIFIED CONDUCTING MATERIAL IN ONE OF THE SLOTS OF SAID CUP MEMBER; (2) AN ELECTRICAL LEAD CONNECTES TO EACH OF SAID CONTACT ELEMENTS AND CAPABLE OF FURTHER CONNECTION TO THE SAID ENCEPHALOGRAPHIC-INDICATING INSTRUMENTALITIES; (3) MEANS FOR SELECTIVELY LOCKING SAID WIPING MEMBER IN MECHANICAL AND ELECTRICAL ENGAGEMENT WITH SAID CUP MEMBER AND PEDESTAL.

Claim 2

AN APPARATUS FOR PERMANENTLY RETAINING ELECTRODE LEADS IMPLANTED IN THE BRAIN OF AN EXPERIMENTAL ANIMAL WHICH IS EMPLOYED IN CONJUNCTION WITH ELECTROENCEPHALOGRAPHIC-INDICATING INSTRUMENTALITIES, TO STIMULATE THE ANIMAL AND TO OBTAIN REPEATED ELECTROENCEPHALOGRAMS OF THE ANIMAL OVER AN EXTENDED PERIOD OF TIME COMPRISING: (A) A PEDESTAL HAVING, (1) A FLANGE SHAPED TO FIT SNUGLY THE SKULL OF THE ANIMAL AND ADAPTED TO BE BOLTED THERETO; (2) A SOCKET AT THE END OF THE PEDESTAL OPPOSITE SAID FLANGE; (3) A LONGITUDINAL PASSAGE THROUGH THE PEDESTAL, (B) A CUP MEMBER FITTED AND LOCKED WITHIN THE PEDESTAL SOCKET HAVING, (1) A LONGITUDINAL PASSAGE REGISTERING WITH THE PASSAGE IN THE PEDESTAL; (2) AT ONE END, A PLURALITY OF SLOTS COMMUNICATING WITH THE LONGITUDINAL PASSAGE; (C) A PLURALITY OF ELECTRODE LEADS ADAPTED TO BE IMPLANTED IN THE ANIMAL''S BRAIN AT ONE END AND PASSING THROUGH THE LONGITUDINAL PASSAGES IN SAID PEDESTAL AND CUP MEMBER, THE SECOND END OF EACH ELECTRODE LEAD TERMINATING IN ONE OF SAID SLOTS OF SAID CUP MEMBER; (D) SOLIDIFIED CONDUCTIVE MATERIAL OVERLYING AN EXPOSED PORTION OF THE ELECTRODE LEAD IN EACH OF THE SLOTS OF SAID CUP MEMBER; (E) SEPARABLE CONNECTOR MEANS FOR SELECTIVELY CONNECTING AND DISCONNECTING THE SAID ELECTRODE LEADS TO AND FROM THE AFORESAID ELECTROENCEPHALORGRAPHIC-INDICATING INSTRUMENTALITIES COMPRISING, (1) A WIPING CONTACT MEMBER HAVING A PLURALITY OF SPRING PRESSED CONTACT ELEMENTS EACH ADAPTED TO MAKE ELECTRICAL CONTACT WITH THE SOLIDIFIED CONDUCTING MATERIAL IN ONE OF THE SLOTS OF SAID CUP MEMBER; (2) AN ELECTRICAL LEAD CONNECTES TO EACH OF SAID CONTACT ELEMENTS AND CAPABLE OF FURTHER CONNECTION TO THE SAID ENCEPHALOGRAPHIC-INDICATING INSTRUMENTALITIES; (3) MEANS FOR SELECTIVELY LOCKING SAID WIPING MEMBER IN MECHANICAL AND ELECTRICAL ENGAGEMENT WITH SAID CUP MEMBER AND PEDESTAL.