ENDOLUMINAL MULTI-LUMINAL SURGICAL SHEATH AND METHOD

摘要

This invention is a radially non-deformable surgical access catheter (14) with a central lumen (20) surrounded by plural peripheral lumens (22), the lumens (20, 22) being rigidly connected to each other to provide axial stiffness for the catheter (14), as well as rotational stiffness for the catheter (14) so that the catheter (14) may be rotated about its longitudinal axis to place the instruments in any of the peripheral lumens (22) into operational proximity to preselected tissue. Methods are also disclosed.