SYSTEMS AND METHODS FOR ASSESSING TISSUE CONTACT

摘要

Systems and methods are disclosed for assessing tissue contact, e.g., for mapping, tissue ablation, or other procedures. An exemplary tissue contact sensing system comprises a flexible tip device (10). At least one piezoelectric sensor (20) is housed within the flexible tip device (10). The at least one piezoelectric sensor (20) is responsive to contact stress of the flexible tip device (10) by generating electrical signals corresponding to the amount of contact stress. An output device (10) is electrically connected to the at least one piezoelectric sensor (20). The output device (10) receives the electrical signals for assessing tissue contact by the flexible tip device (10). Methods for assembling and using the flexible tip device (10) are also disclosed.