Device for tamponade of body cavities and mechanical anchoring of a catheter

1. A device for tamponade of body cavities and for mechanical anchoring of a catheter having a shaft with an end, the device comprising:

a flexible tube segment having an inner wall and an outer wall that surround an interior space wherein said tube segment is inflatable to assume a torus geometry with said inner wall defining an internal area, and the internal area is configured without through-passing support bodies so that a displacement of tube wall material between said inner wall and said outer wall of said tube segment is possible as inflation proceeds, wherein said tube segment is preformed in such a way that a tube portion that forms the inner wall of said tube segment after invagination is smaller in cross section and has a greater wall thickness than a tube portion forming the outer wall, and wherein said tube segment further comprises:

a. two ends, which are fastened to a same closing element, configured so that a torus geometry is striven for as said inflatable tube segment is inflated and

b. said closing element is a pipe nipple and said two ends of said tube segment are joined together fluid-tightly.

2. The device according to claim 1 , wherein at least said outer wall is thin-walled and elastically expandable.

3. The device according to claim 1 , wherein at least said outer wall of the tube segment has a wall thickness of a few microns.

4. The device according to claim 1 , wherein said tube segment consists of a polyurethane, a polyurethane/polyvinyl chloride mixture, or a comparable polyurethane-based material or a polymer having comparable expansion and processing characteristics.

5. The device according to claim 1 , wherein said tube segment is configured for the reversible, sealing securement of the catheter at the end of the catheter shaft.

6. The device according to claim 1 , wherein said tube segment is formed by invaginating a single-walled tube section.

7. The device according to claim 6 , wherein at least one end of said tube section is attached to the catheter shaft.

8. The device according to claim 1 , wherein a channel for the delivery and/or discharge of a fluid opens into the interior space formed by said walls of said tube segment.

9. The device according to claim 6 , wherein said tube section or a portion thereof is preformed as a single-walled tube in the shape of a roll before being fashioned into a tube segment by invagination.

10. The device according to claim 9 , wherein a bulge produced vertically to the plane of rotation of said tube segment by the invagination is thickened by said preforming.

11. The device according to claim 1 , wherein said tube portion is provided with a uniform wall thickness and a uniform inner diameter.

12. The device according to claim 1 , wherein said tube segment is implemented with a residual volume.

13. The device according to claim 1 , wherein a channel is connected via a flexible connecting tube to a valve disposed outside said tube segment.

14. The device according to claim 13 , wherein said valve includes a lip valve.

15. The device according to claim 13 , wherein said valve is a circular sleeve consisting of flexible material and disposed between said tube ends.

16. The device according to claim 1 , wherein a collar-shaped abutment is disposed on a selected one of said pipe nipple and said catheter shaft.

17. The device according to claim 1 , wherein a pressure sensor is contained in the interior space.

18. The device according to claim 1 , wherein a medically active substance can be introduced into the interior space enclosed by said tube segment.

19. The device according to claim 18 , wherein said medically active substance has at least one of radioactive and chemotherapeutic properties.

20. The device according to claim 18 , wherein said tube segment is covered in at least one subregion by a shield and said shield suppresses or decreases the medicinal activity of the substance in the shielded subregion.

21. The device according to claim 1 , wherein a radiographic contrast medium can be introduced into the interior space enclosed by said tube segment.

22. The device according to claim 1 , wherein affixed to a surface of said tube segment is a pair of electrodes.

23. The device according to claim 1 , wherein a receptacle is affixed to the surface of said tube segment.

24. The device according to claim 1 , wherein a carrier containing a chemotherapeutic substance is affixed to a surface of said tube segment.

25. The device according to claim 1 , wherein a carrier is affixed to a surface of said tube segment.

26. The device according to claim 25 , wherein the carrier contains a radioactive substance.

27. A device for tamponade of body cavities and for mechanical anchoring of a catheter, the device comprising:

a flexible tube segment having an inner wall and an outer wall that surround an interior space wherein said tube segment is inflatable to assume a torus geometry with said inner wall defining an internal area, and the internal area is configured without through-passing support bodies so that a displacement of tube wall material between said inner wall and said outer wall of said tube segment is possible as inflation proceeds, wherein said tube segment further comprises:

a. two ends, which are fastened to a same closing element, configured so that a torus geometry is striven for as said inflatable tube segment is inflated and

b. said closing element is a pipe nipple and said two ends of said tube segment are joined together fluid-tightly, wherein a clamping closure having a longitudinally displaceable sleeve is slidably attached to said tube segment.