Catheter Inner Member

• US 20100125324A1
• Filed: 11/14/2008
• Published: 05/20/2010
• Est. Priority Date: 11/14/2008
• Status: Abandoned Application

• Current Assignee: Medtronic Vascular, Inc. (Medtronic Plc)
• Original Assignee: Medtronic Vascular, Inc. (Medtronic Plc)
• Inventors: Collins, Chris, Nafea, Bijan, Berthiaume, William, Tran, Don, Kinkade, Jeremy
• Application Number:
  US12/271,524
• Publication Number:
  US 20100125324A1
• Time in Patent Office: Days
• US Class Current: 623/1.110
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2/9517 handle assemblies therefor
• CPC Class Codes: A61M 2025/0004 having two or more concentrically arranged tubes for forming a concentric catheter system
• CPC Class Codes: A61M 2025/0019 Cleaning catheters or the like, e.g. for reuse of the device, for avoiding replacement
• CPC Class Codes: A61M 2025/0037 characterized by lumina being arranged side-by-side
• CPC Class Codes: A61M 2025/0183 Rapid exchange or monorail catheters
• CPC Class Codes: A61M 25/0029 characterized by features relating to least one lumen located at the middle part of the catheter, e.g. slots, flaps, valves, cuffs, apertures, notches, grooves or rapid exchange ports catheter shaft surface irregularities A61M2025/006
• CPC Class Codes: A61M 25/007 Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked

Abstract

A catheter inner member includes an inner member body, including a first side and a second side, the second side opposing the first side. The inner member body includes an inner surface defining an inner member inner lumen and an outer surface defining a surrounding environment. The inner member further includes at least a first flush port and a second flush port in the inner member body. The first flush port and second flush port provide fluid communication between the inner lumen and a surrounding environment. The first flush port disposed on the first side and the second flush port disposed on the second side, wherein the first flush port is axially displaced from the second flush port.

Claims

1. A catheter inner member comprising:

an inner member body, including a first side and a second side, the second side opposing the first side, the inner member body including an inner surface defining an inner lumen, the inner member body further including an outer surface defining a surrounding environment;

at least a first flush port and a second flush port in the inner member body, the first flush port and second flush port providing fluid communication between the inner lumen and the surrounding environment, the first flush port disposed on the first side and the second flush port disposed on the second side, and wherein the first flush port is axially offset from the second flush port.

2. The catheter inner member of claim 1 further comprising a rapid exchange port having a block disposed within the inner member body and providing a fluid seal to reduce flow of the flushing fluid proximal of the rapid exchange port.

3. The catheter inner member of claim 1 further comprising an outer cover surrounding the inner member body.

4. The catheter inner member of claim 3 further comprising a self expanding stent contained by the outer cover and contained between the outer cover and the inner member body.

5. A catheter inner member comprising:

an inner member body, the inner member body defining an inner lumen and a surrounding environment;

at least a first incomplete circumferential cut providing fluid communication between the inner lumen and the surrounding environment.

6. The catheter inner member of claim 5 wherein the incomplete circumferential cut extends radially about the inner member body.

7. The catheter inner member of claim 5 wherein the incomplete circumferential cut extends spirally about the inner member body.

8. The catheter inner member of claim 5 further comprising:

a plurality of flush ports in the inner member body, the flush ports providing fluid communication between the inner lumen and the surrounding environment, the plurality of flush ports alternately disposed on a first side of the inner member body and a second side of the inner member body, and wherein the plurality of flush ports are axially displaced from each other.

9. The catheter inner member of claim 8 wherein the inner member body includes a flush port portion and a cut portion, wherein the cut portion is axially offset from the flush port portion, and wherein each flush port is disposed within the flush port portion, and wherein the at least a first incomplete circumferential cut is disposed within the cut portion.

10. The catheter inner member of claim 9 wherein the inner lumen is in fluid communication with a fluid source, and wherein the cut portion is disposed between the fluid source and the flush port portion.

11. A catheter system comprising:

a catheter including a catheter body defining a catheter inner lumen and a surrounding environment;

an inner member maintained within the catheter inner lumen, the inner member comprising;

an inner member body, including a first side and a second side, the second side opposing the first side, the inner member body defining an inner member inner lumen, the inner member body further including an outer surface; and

at least a first flush port and a second flush port in the inner member body, the first flush port and second flush port providing fluid communication between the inner member inner lumen and the catheter inner lumen, the first flush port disposed on the first side and the second flush port disposed on the second side, and wherein the first flush port is axially displaced from the second flush port.

12. The system of claim 11 further comprising:

a stent loaded in the catheter, the stent loaded adjacent at least one of the first flush port and second flush port.

13. The system of claim 12 further comprising:

at least a first incomplete circumferential cut providing fluid communication between the inner member inner lumen and the surrounding environment

14. The system of claim 13 wherein the inner member body includes a flush port portion and a cut portion, wherein the cut portion is axially offset from the flush port portion, and wherein each flush port is disposed within the flush port portion, and wherein the at least a first incomplete circumferential cut is disposed within the cut portion.

15. The system of claim 14 wherein the inner member inner lumen is in fluid communication with a fluid source, and wherein the cut portion is disposed between the fluid source and the flush port portion.

16. The system of claim 14 wherein the inner member inner lumen is in fluid communication with a fluid source, and wherein the flush port portion is disposed between the fluid source and the cut portion.

17. The system of claim 11 further comprising:

at least a first incomplete circumferential cut providing fluid communication between the inner member inner lumen and the surrounding environment

18. The system of claim 17 wherein the inner member body includes a flush port portion and a cut portion, wherein the cut portion is axially offset from the flush port portion, and wherein each flush port is disposed within the flush port portion, and wherein the at least a first incomplete circumferential cut is disposed within the cut portion.

19. The system of claim 18 wherein the inner member inner lumen is in fluid communication with a fluid source, and wherein the flush port portion is disposed between the fluid source and the cut portion

20. The system of claim 19 wherein the cut portion is disposed between the fluid source and the flush port portion.

21. A catheter inner member comprising:

an inner member body, the inner member body including an inner surface and an outer surface, the inner surface separated by the outer surface by a thickness;

at least a first incomplete circumferential cut, the at least a first incomplete circumferential cut extending from the outer surface radially a fraction of the thickness.

22. A catheter system comprising:

a catheter defining a lumen; and

a dual lumen inner member within the catheter, the dual lumen inner member defining a first lumen and a second lumen, the first lumen parallel with the second lumen, and wherein the first lumen is in fluid communication with a distal tip of the catheter, and wherein the second lumen is in fluid communication with a proximal end of the catheter, and wherein the second lumen includes at least a first flush port and a second flush port in the dual lumen inner member, the first flush port and second flush port providing fluid communication between the first lumen and a surrounding environment, the first flush port disposed on a first side and the second flush port disposed on a second side, and wherein the first flush port is axially offset from the second flush port.