Patent ID: 8267842
Filing Date: 2012-09-18
Classification: A61B

Abstract:
1. An ergometer, in particular for examining a test person or patient in a magnetic resonance apparatus, comprising: at least one drive means, provided essentially movably, at least one pneumatic piston/cylinder array, wherein the drive means is provided for movement at the piston or the cylinder and a pneumatically applied pressure between the piston and the cylinder constitutes a resistance or force for deflecting the drive means by the test person or patient, characterized in that the resistance or force to set the drive means in motion can be controlled or regulated, in particular during operation, wherein the resistance or the force is regulated or controlled automatically or electronically based on measured signals from a feedback loop during examination of the test person or patient, wherein the arrangement furthermore comprises a compressed air inlet and an air vessel provided between the compressed air inlet and the ergometer, and wherein the air vessel is designed such that the air pressure applied at the piston/cylinder array can be controlled or regulated and guarantees that no high or short-term load peaks result from counter-pressure when the drive means is deflected.