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US 2006/0189922 A1Published application
Dialysis catheter with stiffening member and flow diverting structure
OwnerChanaka Amarasinghe, James Batesinventors
Life of this patent
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Abstract
Disclosed is a double lumen continuous flow dialysis catheter having contiguous lumens of different lengths, the shorter lumen acting as a blood intake lumen and the longer as a blood return lumen. The catheter is designed to ease insertion into the body without the use of a tearaway sheath and to minimize recirculation flow from the blood return lumen to the blood intake lumen and/or prevent the blood intake lumen from becoming compressed against a vessel or body wall during dialysis.
Claims17
A double lumen catheter, comprising:
- an elongated tube having a unitary outer wall and longitudinal septum wall dividing an interior of said tube into an intake lumen and a return lumen, said intake lumen extending from a proximal end of said tube to an end terminating in a distal intake aperture, said return lumen extending substantially contiguously with said intake lumen from said proximal end of said tube to an end terminating in a distal return aperture spaced distally forward of said intake aperture;
- a diverting structure extending outward from said outer wall of said longitudinal septum wall and positioned distally forward of said intake aperture;
- and
- a stiffening member removably positionable within said catheter tube.
1 more element
Dependencies are inferred from the claim text.