公开(公告)号：US5220921A

公开(公告)日：1993-06-22

申请号：US783109

申请日：1991-10-25

申请人： Johathan R. Ferris ,  K. Randy Brimhall ,  Frank W. Vanesky ,  D. Scott Buchanan ,  Laurence Warden

发明人： Johathan R. Ferris ,  K. Randy Brimhall ,  Frank W. Vanesky ,  D. Scott Buchanan ,  Laurence Warden

IPC分类号： A61B5/05 ,  A61B5/04 ,  A61B5/0476

CPC分类号： A61B5/04009

摘要： An apparatus for making bioelectromagnetic measurements of the human body includes an apparatus for measuring the bioelectromagnetic reaction of a living body to a tactile stimulation and a tactile stimulator that controllably applies a tactile stimulation to the body without creating a magnetic or electrical field that is detected directly by the apparatus for measuring the bioelectromagnetic reaction. The tactile stimulator includes a pressure chamber closed on one side by a movable body such as a piston or flexible membrane, a conduit that transmits pneumatic pressure to the pressure chamber, and apparatus for applying pneumatic pressure to the conduit. The measuring apparatus, such as a biomagnetometer, may be located within a shielded room, and in this case the pressure chamber and movable body are preferably located within the shielded room, the apparatus for applying pneumatic pressure is located outside the room, and the conduit passes from the exterior to the interior of the room.