bracket of the invention holds a transducer at the level of a patient 39 s heart in order to easily and accurately record pressures during surgery application_number US 61395409 A description the present invention provides a bracket comprising a pole support for apparatus such as breathing circuits and a means for holding the bracket to a bed the pole allows a transducer holder to be attached or clamped to it the bracket can be held to the bed by slipping a portion of it between the bed and the mattress or it can be clamped to the bed in one embodiment of the invention a device whose initial form is similar to a metal device presently used to hold breathing circuits for the anesthesiologist has been elegantly changed and appropriately modified to serve a dual purpose the device that has been modified is often called a u201c christmas tree u201d it is of metal construction and along its sides exists indentations which can act as support for the plastic tubing in a breathing circuit used during mechanical ventilation in common examples these are about u215e inch wide by about 1 u00bd inches in depth this u201c christmas tree u201d metal stand is commonly used during operations of all types and available in each operating room in a preferred embodiment of.