| abstract |
Catheter systems and methods are disclosed for anchoring the catheter system (10) to tissue (25), e.g., for delivery of biologic or chemical agents, or other therapeutic fluid during various procedures. An exemplary tissue anchoring catheter comprises an outer catheter shaft (16) connected to a catheter handle (12). A delivery sheath (18) is provided within the outer catheter shaft (16), the delivery sheath (18) housing a needle (20). At least one anchor (27, 28) is operatively associated with the delivery sheath (18), the at least one anchor operable at the catheter handle (12) to secure the delivery sheath (18) to tissue (25) for conveying biologic or chemical agents, or other therapeutic fluid from the needle (20) to the tissue (25). The tissue anchoring catheter may further comprise sensing means (55) such as piezoelectric, pressure, thermistor, thermocouple, or ultrasound sensors. |