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Method for carrying out hemodynamic measurements on a patient and flow-directed balloon catheter used for this

  • US 5,035,246 A
  • Filed: 06/30/1988
  • Issued: 07/30/1991
  • Est. Priority Date: 06/30/1987
  • Status: Expired due to Fees
First Claim
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1. Method for carrying out hemodynamic measurements on a patient, using a flow-directed balloon catheter, which is connected to a control and pressure-measuring unit and is at least provided with a distal measuring lumen and a balloon-inflating lumen, comprising the steps of inserting the catheter by way of a suitable vein until the distal end is positioned inside the thorax, subsequently inflating the balloon, inserting the catheter further by way of the right atrium and ventricle into the pulmonary artery until the distal end with the inflated balloon in wedge position is stuck in a branch thereof and closes off the latter, providing a proximal measuring lumen spaced closely to the distal measuring lumen, measuring the pulmonary arterial pressure (PAP) during insertion of the catheter into the pulmonary artery as long as the catheter has not yet arrived in the wedge position via both the proximal measuring lumen and the distal measuring lumen, and simultaneously recording the two relevant, virtually identical pressure curves with the measuring unit.

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