摘要:
A system, method and apparatus for regulating vacuum applied to surgical suction devices (20, 30) allowing the use of a single vacuum regulator (44) and associated canister to provide vacuum to two suction devices, such as a suction stabilizer (20) and a suction retractor (30). Vacuum controllers (50, 52) may be placed in the vacuum lines (54,56) provided to each of two or more suction devices, or may be placed only in the vacuum line of the suction device believed most likely to detach during the procedure.
摘要:
A method and system for ablating tissue to provide a desired set of lesions. The system includes an ablation apparatus having an elongated shapeable section carrying a mechanism such as an electrode for applying ablation energy along the shapeable section. The shapeable section includes a member of shape memory material having a memorized configuration. The shapeable section is shaped manually or using fixtures to display a configuration corresponding to one of the desired lesions and is then employed to create the desired lesion. Thereafter the shapeable section is heated to cause it to resume its memorized configuration. Shaping, heating and ablating to create lesions are continued as necessary provide the desired set of lesions. In some embodiments of the invention, heating may be accomplished using heating elements built into the shapeable section.
摘要:
The invention provides an organ positioning device and method that employs suction to hold organ tissue to the device. The device allows the organ, for example, heart to be positioned in a desired orientation but otherwise allowing movement of the heart as the heart beats. The device is designed to be relatively atraumatic to heart tissue. Generally, the device comprises a resiliently flexible suction head having a plurality of legs that flex to conform to the surface of the heart. The suction head has vacuum passageways in fluid communication with the legs to apply suction between the legs and the surface of the heart.