Venous access catheters and methods for portal venous system catheterization
AssigneeThe Regents of the University of Colorado, a body corporate
InventorThor Johnson
Life of this patent
Estimating the term…
Abstract
The present invention contemplates devices and methods to administer nutritional compositions and/or therapeutic drugs directly into a portal venous system. For example, total parenteral nutrition therapy may be administered directly into the hepatic portal venous system thus circumventing known side effects of conventional parenteral administration. Alternatively, hepatic diseases and disorders may be treated using locally administered therapeutic drugs. Devices capable of direct portal venous system administration include, but are not limited to, a direct portal access catheter or a transjugular access catheter.
Claims21
A transjugular portal access catheter device, comprising:
- a) a catheter body having a proximal end and a distal end and a tissue penetrator, wherein an anchor balloon is attached to said distal end;
- b) at least three lumens configured within said catheter body, wherein said first lumen extends between said proximal end and said distal end, said second lumen connects to said anchor balloon, and said third lumen extends from said proximal end and terminates before said distal end;
- and
- c) a connection hub interfaced with said three lumens, wherein said hub connects said three lumens to said proximal end of said catheter body.
A direct portal access catheter device, comprising:
- a) a catheter body having a proximal end and a distal end and a tissue penetrator, wherein said distal end of said catheter contains an anchor balloon;
- b) at least two lumens configured within said catheter body, wherein said first lumen extends from said proximal end to said distal end, and said second lumen connects to said anchor balloon;
- and
- c) a connection hub interfaced with said first and second lumens and connects to said proximal end.
A method, comprising:
- a) providing;
- i) a subject exhibiting at least one symptom of a disorder;
- ii) a portal access catheter comprising an anchor balloon;
- and
- iii) a composition capable of reducing said at least one symptom of said disorder;
- b) inserting said portal access catheter into a portal venous system;
- c) stabilizing said portal access catheter with said anchor balloon;
- and
- d) administering said composition with said portal access catheter into said portal venous system under conditions such that said at least one symptom of said disorder is reduced.
21-52. (canceled)
Dependencies are inferred from the claim text.