Patent ID: 6293927
Filing Date: 2001-09-25
Classification: A61M

Abstract:
A stationary central dialysis catheter comprising:a. a planar axially elongated sinuous tubular member having a plurality of axially extending lumens therein;b. at least a part of said tubular member having predetermined two-dimensional shape substantially matching an anatomical central tunnel region of interest, including at least two portions of relative straightness connected by a curved portion region, to fit a preselected body lumen in said anatomical region of interest;c. said tubular member being deformable and resiliently returning to said predetermined two-dimensional shape after deformation;d. in said part of said tubular member having predetermined shape at least two of said lumens each having at least one aperture for through passage of fluid during dialysis, said apertures being axially displaced from one another along said tubular member;e. a flexible sheath having a proximal portion and a distal portion and complementally surrounding at least said part having predetermined two-dimensional shape, for protecting said tubular member part having predetermined shape, and being peelably removable therefrom in situ when said tubular member has been positioned within said preselected lumen;f. ripcord means in the form of a suture embedded in said flexible sheath and running the longitudinal length thereof to define a line of weakness therein, the suture looped around at the distal portion with free ends at the proximal portion to define the line of weakness separable first adjacent the suture loop, the suture extending along the length of said tubular member for rupturing said sheath in a proximal direction in the vicinity of an axial extremity of said tubular member proximate said apertures in response to manual force applied to a portion of said ripcord extending from the body of a patient in whom said catheter has been implanted.