Abstract: A fat removal device includes a screen which includes passages through which fat can be extruded, to be cut or melted away from the surface of an internal organ. The device includes a blade to cut the fat or radiofrequency monopolar or bipolar electrodes to melt the fat, aspiration to remove the fat away from the screen and blade, irrigation to irrigate the screen and blade, and an electrocautery member to cauterize the capillary bed of the fat. Methods of using removing the fat layer from the surface of an internal body organ are also described.

Abstract: An RF treatment device according to the present invention includes one or two radio frequency electrode holders each having multiple needle electrodes arranged to create a transmural lesion through tissue, with or without the presence of fat on the tissue. When inserted through the tissue, the needle electrodes are in single straight or curved line with the needle electrodes being parallel to each other, adjacent electrodes having opposite polarity, and having tips and shafts designed to minimize tissue penetration force. Lubricious coatings may be provided for this purpose, along with or in lieu of motion imparting mechanisms which to impart vibration, oscillation, or rotation which facilitate penetration. Further, RF energy may applied during penetration for this purpose. The embodiments are described for use in creating a transmural lesion in heart tissue to treat atrial fibrillation by blocking the passage of abnormal electrical currents through the heart.

Abstract: An RF treatment device according to the present invention includes one or two radio frequency electrode holders each having multiple electrodes arranged to create a transmural lesion through tissue. The treatment device is placed with one holder placed on the endocardial surface of the heart wall with the electrodes protruding towards the epicardial surface of the heart and the other optional holder placed on the epicardial surface of the heart with the electrodes protruding towards the endocardial surface of the heart forming a bipolar arrangement of equally spaced electrodes. The embodiments of the present invention are described for use in creating a transmural lesion in heart tissue to treat atrial fibrillation by blocking the passage of abnormal electrical currents through the heart. However, the devices and methods may also be used to create continuous transmural lesions in heart tissue and other body organs and tissues to treat other conditions.

Abstract: A fat removal device includes a screen which includes passages through which fat can be extruded, to be cut or melted away from the surface of an internal organ. The device includes a blade to cut the fat or radiofrequency monopolar or bipolar electrodes to melt the fat, aspiration to remove the fat away from the screen and blade, irrigation to irrigate the screen and blade, and an electrocautery member to cauterize the capillary bed of the fat. Methods of using removing the fat layer from the surface of an internal body organ are also described.

Abstract: A fat removal device includes a screen which includes passages through which fat can be extruded, to be cut or melted away from the surface of an internal organ. The device includes a blade to cut the fat or radiofrequency monopolar or bipolar electrodes to melt the fat, aspiration to remove the fat away from the screen and blade, irrigation to irrigate the screen and blade, and an electrocautery member to cauterize the capillary bed of the fat. Methods of using removing the fat layer from the surface of an internal body organ are also described.

Abstract: An RF treatment device according to the present invention includes one or two radio frequency electrode holders each having multiple electrodes arranged to create a transmural lesion through tissue. The treatment device is placed with one holder placed on the endocardial surface of the heart wall with the electrodes protruding towards the epicardial surface of the heart and the other optional holder placed on the epicardial surface of the heart with the electrodes protruding towards the endocardial surface of the heart forming a bipolar arrangement of equally spaced electrodes. The embodiments of the present invention are described for use in creating a transmural lesion in heart tissue to treat atrial fibrillation by blocking the passage of abnormal electrical currents through the heart. However, the devices and methods may also be used to create continuous transmural lesions in heart tissue and other body organs and tissues to treat other conditions.