MULTI-LUMEN CATHETER ASSEMBLY AND METHOD OF PROVIDING RELATIVE MOTION THERETO

• US 20090024084A1
• Filed: 07/15/2008
• Published: 01/22/2009
• Est. Priority Date: 07/16/2007
• Status: Abandoned Application

• Current Assignee: Cleveland Clinic Foundation
• Original Assignee: Peritec Biosciences
• Inventors: Khosla, Rajesh K., Christian, Steve
• Application Number:
  US12/173,603
• Publication Number:
  US 20090024084A1
• Time in Patent Office: Days
• US Class Current: 604/95.10
• CPC Class Codes: A61M 2025/0004 having two or more concentrically arranged tubes for forming a concentric catheter system
• CPC Class Codes: A61M 2025/0006 which can be secured against axial movement, e.g. by using a locking cuff
• CPC Class Codes: A61M 25/0097 characterised by the hub connectors A61M39/10
• CPC Class Codes: A61M 25/0136 Handles therefor

Abstract

A handle for providing relative motion to a multi-lumen catheter assembly includes an elongated handle body having a longitudinal axis. The handle body has longitudinally spaced proximal and distal handle ends. An outer catheter chuck is connected to the distal handle end and is adapted to receive an outer catheter member. An inner catheter chuck is connected to the proximal handle end and is adapted to receive an inner catheter member. A handle actuator is movably connected to the handle body. The handle actuator is adapted to receive an intermediate catheter member and to move the intermediate catheter member relative to the inner and outer catheter members. The intermediate catheter is at least partially interposed between the inner and outer catheter.

Claims

1. A handle for providing relative motion to a multi-lumen catheter assembly, the handle comprising:

an elongated handle body having a longitudinal axis, the handle body having longitudinally spaced proximal and distal handle ends;

an outer catheter chuck connected to the distal handle end and adapted to receive an outer catheter member;

an inner catheter chuck connected to the proximal handle end and adapted to receive an inner catheter member;

a handle actuator movably connected to the handle body, the handle actuator being adapted to receive an intermediate catheter member and to move the intermediate catheter member relative to the inner and outer catheter members, the intermediate catheter member being at least partially interposed between the inner and outer catheter members.

2. The handle of claim 1, wherein the inner catheter member has a third lumen and the handle comprises an inner catheter adapter connected to the inner catheter member and providing access to the third lumen, the inner catheter adapter being mounted on the handle body.

3. The handle of claim 1, being configured to maintain at least a portion of each of the outer, intermediate, and inner catheter members in a coaxial relationship with at least a portion of the other of the outer, inner, and intermediate catheter members.

4. The handle of claim 1, wherein the inner catheter member extends longitudinally through at least a portion of the handle body when received by the inner catheter chuck.

5. The handle of claim 4, wherein the handle body has a handle lumen, and the inner catheter member extends longitudinally through at least a portion of the handle lumen.

6. The handle of claim 1, wherein the outer catheter chuck includes retention means adapted to frictionally engage the outer catheter member.

7. The handle of claim 1, wherein the inner catheter chuck includes retention means adapted to frictionally engage the inner catheter member.

8. The handle of claim 1, wherein the handle actuator is slidably connected to the handle body and adapted for longitudinal motion relative to the handle body to move the intermediate catheter member relative to the inner and outer catheter members.

9. The handle of claim 1, wherein the handle actuator is axially rotatable between first and second actuator rotation positions, the handle actuator being prevented from moving longitudinally relative to the handle body in the first actuator rotation position, and the handle actuator being permitted to move longitudinally relative to the handle body in the second actuator rotation position.

10. The handle of claim 8, comprising an actuator detent mechanism operative to selectively resist movement of the handle actuator in the longitudinal direction.

11. The handle of claim 9, comprising an actuator detent mechanism operative to selectively resist rotation of the handle actuator in the axial direction.

12. A multi-lumen catheter assembly, comprising:

an outer catheter member having a longitudinal axis and longitudinally spaced proximal and distal outer catheter ends with a first lumen defined therebetween;

an intermediate catheter member having longitudinally spaced proximal and distal intermediate catheter ends with a second lumen defined therebetween, the intermediate catheter member being at least partially located within the first lumen;

an inner catheter member having longitudinally spaced proximal and distal inner catheter ends, the inner catheter member being at least partially located within the second lumen; and

a handle connected to the proximal outer catheter end, the proximal intermediate catheter end, and the proximal inner catheter end;

wherein the handle is adapted to maintain the relative position of the outer and inner catheter members while providing movement of the intermediate catheter member relative thereto.

13. The multi-lumen catheter assembly of claim 12, wherein the handle comprises:

a handle body having longitudinally spaced proximal and distal handle ends, the distal handle end affixed to the proximal outer catheter end and the proximal handle end affixed to the proximal inner catheter end;

a handle lumen extending longitudinally between the distal and proximal handle ends, the inner catheter member extending longitudinally through the handle lumen; and

a handle actuator affixed to the proximal intermediate catheter end and movably connected to the handle body;

wherein the handle actuator is selectively movable relative to the handle body to move the intermediate catheter member longitudinally relative to the outer and inner catheter members.

14. The multi-lumen catheter assembly of claim 13, wherein the inner catheter member has a third lumen defined between the proximal and distal inner catheter ends and the proximal handle end comprises an inner catheter adapter placing the proximal handle end in fluid communication with the third lumen.

15. The multi-lumen catheter assembly of claim 13, wherein the handle actuator is slidably connected to the handle body.

16. The multi-lumen catheter assembly of claim 13, wherein the handle actuator is selectively movable in a longitudinal direction relative to the handle body.

17. The multi-lumen catheter assembly of claim 13, wherein the handle actuator is axially rotatable between first and second actuator rotation positions, the handle actuator being prevented from moving longitudinally relative to the handle body in the first actuator rotation position, and the handle actuator being permitted to move longitudinally relative to the handle body in the second actuator rotation position.

18. The multi-lumen catheter assembly of claim 16, comprising an actuator detent mechanism operative to selectively resist movement of the handle actuator in the longitudinal direction.

19. The multi-lumen catheter assembly of claim 17, comprising an actuator detent mechanism operative to selectively resist movement of the handle actuator between the first and second actuator rotation positions.

20. The multi-lumen catheter assembly of claim 12, wherein the handle actuator is selectively movable relative to the handle body to move the distal intermediate catheter end longitudinally between the distal inner catheter end and the distal outer catheter end.

21. The multi-lumen catheter assembly of claim 12, wherein the handle actuator is selectively movable relative to the handle body to extend the distal intermediate catheter end longitudinally beyond the distal inner catheter end.

22. The multi-lumen catheter assembly of claim 12, wherein the outer, intermediate, and inner catheter members are at least partially arranged in a mutually coaxial relationship.

23. An intraluminal prosthesis delivery system comprising the multi-lumen catheter assembly of claim 12, wherein at least one of the distal outer catheter end, the distal intermediate catheter end, and the distal inner catheter end is operatively connectable to an intraluminal prosthesis cartridge.

24. A method of providing relative motion to a multi-lumen catheter assembly, the method comprising the steps of:

providing an outer catheter member having a longitudinal axis and longitudinally spaced proximal and distal outer catheter ends with a first lumen defined therebetween;

at least partially locating an intermediate catheter member within the first lumen, the intermediate catheter member having longitudinally spaced proximal and distal intermediate catheter ends with a second lumen defined therebetween;

at least partially locating an inner catheter member within the second lumen, the inner catheter member having longitudinally spaced proximal and distal inner catheter ends;

connecting a handle to the proximal outer catheter end, the proximal intermediate catheter end, and the proximal inner catheter end;

maintaining the relative position of the outer and inner catheter members; and

providing movement of the intermediate catheter member relative to the outer and inner catheter members.

25. The method of claim 24, comprising the steps of:

providing a handle body having longitudinally spaced proximal and distal handle ends and a handle lumen extending longitudinally therebetween;

affixing the distal handle end to the proximal outer catheter end;

affixing the proximal handle end to the proximal inner catheter end;

extending the inner catheter member longitudinally through the handle lumen;

affixing a handle actuator to the proximal intermediate catheter end;

movably connecting the handle actuator to the handle body; and

moving the intermediate catheter member longitudinally relative to the outer and inner catheter members by selectively-moving the handle actuator relative to the handle body.

26. The method of claim 25, wherein the step of movably connecting the handle actuator to the handle body comprises the step of slidably connecting the handle actuator to the handle body.

27. The method of claim 25, wherein the step of moving the intermediate catheter member longitudinally relative to the outer and inner catheter members by selectively moving the handle actuator relative to the handle body comprises the step of selectively moving the handle actuator in a longitudinal direction relative to the handle body.

28. The method of claim 25, wherein the handle actuator is axially rotatable between first and second actuator rotation positions, the method comprising the steps of:

preventing the handle actuator from moving longitudinally relative to the handle body in the first actuator rotation position; and

permitting the handle actuator to move longitudinally relative to the handle body in the second actuator rotation position.

29. The method of claim 28, comprising the step of selectively resisting movement of the handle actuator between the first and second actuator rotation positions with an actuator detent mechanism.

30. The method of claim 24, comprising the step of selectively moving the handle actuator relative to the handle body to move the distal intermediate catheter end longitudinally between the distal inner catheter end and the distal outer catheter end.

31. The method of claim 24, comprising the step of extending the distal intermediate catheter end axially beyond the distal inner catheter end by selectively moving the handle actuator relative to the handle body.