| 摘要 |
<p>A method for placing various types of catheters into the pericardial space takes advantage of the fact that the right auricle is a thin walled, low-pressure structure which can be readily penetrated without damaging the pericardium or the epicardium. A guide catheter (401) is passed through a selected peripheral vein to establish a trans-venous route to the right auricle of the heart. A needle catheter (401) is then passe through guide catheter and into the right auricle so that a distal end of the needle catheter (402) is positioned against a wall of the right auricle. The wall of the right auricle is than pierced with the needle catheter (402). A guide wire (403) is advanced through the needle catheter and into the pericardial space. Once in position the guide wire (403) can be used as a conduit over which a desired catheter may be introduced for performing a specific medical procedure.</p> |
