Catheter or the like with medication injector to prevent infection
First Claim
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1. A catheter comprising:
- a) a tubular body having a tube wall, proximal and distal ends, and an exterior surface, adapted to be positioned in an operative position in a living body wall such that said proximal end is positioned outside the living body and said distal end lies within the living body inwardly of the body wall;
b) at least one primary interior channel within said tubular body, extending substantially the entire length of said tubular body and having openings at said proximal and distal ends, the opening at said distal end being positioned to communicate with the interior of the living body when said tubular body is in its operative position;
c) a cuff having proximal and distal ends and comprising an inner base sleeve and a outer porous cylindrical pad mounted on said inner base sleeve and flow ports extending through said inner base sleeve and said tubular body;
said inner base sleeve being disposed annularly and engagingly around said tubular body, and adapted to be located within the body wall of the living body when said tubular body is in its operative position;
d) a secondary channel within said tubular body, extending from said proximal end a distance along said tubular body and being positioned to communicate with said flow ports extending through said tube wall at a point located between said proximal and distal ends of said cuff, said secondary channel permitting the introduction of disinfectant fluid through said flow ports to engage and cleanse the body wall.
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Abstract
A peritoneal dialysis catheter has annular cuffs at one or more locations along its length. The cuffs are of a woven material to promote tissue ingrowth and thereby anchor the catheter to the body. The catheter has internal channels extending from ports located outside the body to deliver disinfecting fluid to the space between the cuffs and the catheter exterior, preventing infections from reaching the cuffs and reducing the frequency of new implants.
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Citations
24 Claims
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1. A catheter comprising:
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a) a tubular body having a tube wall, proximal and distal ends, and an exterior surface, adapted to be positioned in an operative position in a living body wall such that said proximal end is positioned outside the living body and said distal end lies within the living body inwardly of the body wall; b) at least one primary interior channel within said tubular body, extending substantially the entire length of said tubular body and having openings at said proximal and distal ends, the opening at said distal end being positioned to communicate with the interior of the living body when said tubular body is in its operative position; c) a cuff having proximal and distal ends and comprising an inner base sleeve and a outer porous cylindrical pad mounted on said inner base sleeve and flow ports extending through said inner base sleeve and said tubular body;
said inner base sleeve being disposed annularly and engagingly around said tubular body, and adapted to be located within the body wall of the living body when said tubular body is in its operative position;d) a secondary channel within said tubular body, extending from said proximal end a distance along said tubular body and being positioned to communicate with said flow ports extending through said tube wall at a point located between said proximal and distal ends of said cuff, said secondary channel permitting the introduction of disinfectant fluid through said flow ports to engage and cleanse the body wall. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An elongated, cylindrical body implant having an outer surface, a primary channel within said body implant extending substantially the entire length of said body implant, a distal end and a proximal end, which implant is adapted to be positioned in an operative position in a living body wall such that said proximal end is positioned outside the living body and said distal end lies within the living body inwardly of the body wall;
- said implant including;
a) a cuff having proximal and distal ends and comprising an inner base sleeve and an outer, porous, cylindrical pad mounted externally on said inner base sleeve, wherein said inner base sleeve is secured to the outer surface of the body implant, flow ports extending through said inner base sleeve to said body implant;
said inner base sleeve being disposed annularly and engagingly around said body implant, and adapted to be located within the body wall of the living body when said body implant is in its operative position; andb) a secondary channel within said body implant, extending from said proximal end a distance along said body implant and being positioned to communicate with said flow ports at a point located between said proximal and distal ends of said cuff. - View Dependent Claims (21, 22, 23, 24)
- said implant including;
Specification