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. At least one piezoelectric sensor is housed within the flexible tip device. The at least one piezoelectric...http://www.google.com/patents/US20070123764?utm_source=gb-gplus-sharePatent US20070123764 - Systems and Methods For Assessing Tissue Contact