Apparatus and method for suppressing resonance in an...

Details Apparatus and method for suppressing resonance in an... Apparatus and method for suppressing resonance in an...

A - Human Necessities

61

B

326/13.5

A61B 5/02 (2006.01) A61B 5/0215 (2006.01)

Patent

CA 1175494

Abstract of the Invention A novel apparatus and method for suppressing, unwanted resonance in an electromanometry system. The apparatus includes a compliant air cavity connected through a variable impedance device which is coupled in parallel to the liquid- filled catheter or the electromanometry system. By varying the hydraulic impedance through which the compliant air cavity is coupled to the system, precise impedance matching capability is provided over a wide range of hydraulic impedance values, thereby permitting suppression of unwanted resonance and improved frequency response of recorded waveforms in a wide variety of catheter-transducer systems.

372619

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