Catheter and method of fluid removal from a body cavity

• US 20030191452A1
• Filed: 06/14/2002
• Published: 10/09/2003
• Est. Priority Date: 04/04/2002
• Status: Active Grant

• Current Assignee: Allen J. Meglin, Matthew Meglin
• Original Assignee: Allen J. Meglin, Matthew Meglin
• Inventors: Meglin, Matthew, Meglin, Allen J.
• Granted Patent: US 7,048,729 B2
• Time in Patent Office: Days
• US Class Current: 604/537
• CPC Class Codes: A61M 27/00 Drainage appliance for wounds or the like , i.e. wound drains, implanted drains negative pressure wound therapy devices A61M1/90; implements for holding wound open A61B17/02 ; middle ear drainage A61F11/202

Abstract

A catheter comprises a catheter body having a wall defining a lumen therein and having plural holes defined through the wall in a pattern which prevents loculation, migration and blockage of a fluid flow through the lumen, the catheter body having a tissue-puncture resistant shape; and a port having a reservoir capable of multiple needle accesses. The catheter is useful for draining fluids from a patient'"'"'s body cavity, for example the peritoneal cavity.

Claims

1. A catheter, comprising:

a catheter body having a wall defining a lumen therein and having plural holes defined through the wall in a pattern which prevents loculation, migration and blockage of a fluid flow through the lumen, the catheter body having a tissue-puncture resistant shape; and

a port having on one surface a septum capable of multiple needle accesses.

2. The catheter of claim 1, wherein the plural holes are located in a protected region of the catheter body.

3. The catheter of claim 2, having a pigtail coil shape.

4. The catheter of claim 3, wherein the plural holes are located in a protected region defined by an inner curve of the pigtail coil.

5. The catheter of claim 2, having a helix coil shape.

6. The catheter of claim 5, wherein the plural holes are located in a protected region defined by an inner curve of the helix coil.

7. The catheter of claim 2, having a T-bar shape.

8. The catheter of claim 7, wherein the plural holes are located in a protected region defined adjacent an angle between a stem and a crossbar of the T-bar.

9. The catheter of claim 1, having a tulip shape.

10. The catheter of claim 9, wherein the plural holes are located on a broad surface of a petal of the tulip.

11. The catheter of claim 10, the tulip collapsible when advanced by a pusher rod.

12. The catheter of claim 1, wherein the port has a septum through which needle access is obtained.

13. The catheter of claim 12, wherein the septum has sufficient surface area and thickness to sustain over 50 passages by an 18 gauge needle.

14. The catheter of claim 13, wherein the septum has sufficient surface area and thickness to sustain over 100 passages by the 18 gauge needle.

15. The catheter of claim 14, wherein the septum has sufficient surface area and thickness to sustain over 200 passages by the 18 gauge needle.

16. The catheter of claim 1, further comprising:

another port coupled to the first port and to the body of the catheter for fluid communication therewith.

17. The catheter of claim 1, wherein the port has an outlet that terminates opposite the port from the septum.

18. The catheter of claim 17, wherein the outlet exits the port from a surface opposite the septum.

19. The catheter of claim 17, wherein the outlet exits the port from a side of the port and makes a right-angle bend.

20. The catheter of claim 1, wherein the catheter body and the port are integrated.

21. The catheter of claim 1, further comprising:

a cage surrounding at least part of the catheter body including the plural holes.

22. The catheter of claim 21, wherein the cage is integral with the catheter body.

23. The catheter of claim 21, wherein the cage is memory mated.