| 摘要 |
This disclosure relates to an atrioventricular electrode for the purpose of electrically stimulating the heart, for example, in conjunction with a pacemaker. The atrioventricular electrode includes a ventricular component and an atrial component, both carried by a common body. The atrial component, in its original form assumes a generally J-shaped configuration so that it may hook onto the atrial appendage at the time the ventricular component has the electrode thereof firmly engaged against the right ventricular wall. Restraining means are provided for, during the insertion of the atrioventricular electrode to restrain the atrial component in a substantially straight line relationship adjacent the ventricular component so as to facilitate the insertion of the atrioventricular electrode. The restraining means is preferably in the form of a stylet utilized for the purpose of positioning the atrioventricular electrode and which stylet, when withdrawn, permits the bending of the atrial component back to its original J-shaped configuration.
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