Slidable capture catheter

• US 20040220612A1
• Filed: 04/27/2004
• Published: 11/04/2004
• Est. Priority Date: 04/30/2003
• Status: Abandoned Application

• Current Assignee: Rubicon Medical, Inc. (Boston Scientific Corporation)
• Original Assignee: Rubicon Medical, Inc. (Boston Scientific Corporation)
• Inventors: Swainston, Kyle W., Edmiston, Daryl R., Linder, Richard J.
• Application Number:
  US10/832,565
• Publication Number:
  US 20040220612A1
• Time in Patent Office: Days
• US Class Current: 606/200
• CPC Class Codes: A61B 2090/0811 for the position of a particular part of an instrument with respect to the rest of the instrument, e.g. position of the anvil of a stapling instrument
• CPC Class Codes: A61F 2/0108 Both ends closed, i.e. legs gathered at both ends
• CPC Class Codes: A61F 2/011 Instruments for their placement or removal
• CPC Class Codes: A61F 2/9517 handle assemblies therefor
• CPC Class Codes: A61F 2002/018 made from tubes or sheets of material, e.g. by etching or laser-cutting
• CPC Class Codes: A61F 2230/0006 circular
• CPC Class Codes: A61F 2230/008 paraboloidal

Abstract

A capture catheter is provided having a proximal end and a distal end. A tubular member extends between the distal end and the proximal end of the capture catheter. A capture sleeve is disposed at the distal end. An actuation assembly is disposed at the proximal end of the capture catheter. The actuation assembly includes a barrel having a plunger disposed therethrough, the plunger able to slide in the proximal and distal direction. The plunger is connected to a deploying member is disposed through a lumen extending through the tubular member. The deploying member is connected to the capture sleeve to translate movement in the distal and proximal directions. A flush port is provided aspirate the lumen having the deploying member. Stop mechanism are provided for preventing excessive movement in the distal and proximal directions.

Claims

1. A capture catheter capable of being displaced within a body lumen and to engage with an embolic protection device that collects embolic material, the capture catheter comprising:

an elongate member having a proximal end and an atraumatic distal end, the elongate member comprising a first lumen extending from said proximal end toward said distal end thereof and a second lumen extending from said distal end toward said proximal end;

a capture sleeve slidably cooperating with said distal end of said elongate member; and

an actuating assembly connected to said proximal end of said elongate member, said actuating assembly having a deploying member that couples with said capture sleeve and slidably cooperates with said first lumen so that an operator can move said deploying member in a controlled manner using a single hand of the operator.

2. The capture catheter as recited in claim 1, wherein said actuating assembly comprises:

a barrel connected to said proximal end of said elongate member; and

a plunger slidably disposed in said barrel, said plunger being connected to said deploying member.

3. The capture catheter as recited in claim 1, wherein said actuating assembly comprises:

a housing; and

a sliding assembly disposed in said housing, said sliding assembly being connected to said deployment member such that said deployment member can be moved proximally and distally.

4. The capture catheter as recited in claim 3, wherein said sliding assembly comprises:

a slot formed on a surface of said housing;

a track disposed in said housing; and

an actuating member slidably disposed on said track, said deployment member being connected to said actuating member.

5. The capture catheter as recited in claim 4, wherein said actuating member comprising a body, and a flexible arm depending outwardly from said body and at least partially extending through said slot of said housing such that said flexible arm is accessible by an operator to move said actuating member along said track.

6. The capture catheter as recited in claim 4, wherein said slot includes at least one locking groove formed along a length thereof, wherein said flexible arm can be selectively disposed in said at least one locking groove.

7. The capture catheter as recited in claim 4, further comprising a plurality of tactical ribs formed on an inside surface of said housing.

8. The capture catheter as recited in claim 4, further comprising a compression limiter formed on said body of said actuating member.

9. The capture catheter as recited in claim 1, wherein said actuating assembly further comprises markings on a housing of said actuating assembly, said markings providing indicators as to the deployed and un-deployed state of said capture sleeve.

10. The capture catheter as recited in claim 1, wherein said actuating assembly further comprise one or more stops that limit the movement of said deploying member during deployment and retrieval of the embolic protection device.

11. The capture catheter as recited in claim 1, further comprising a secondary sleeve coupled to said capture sleeve, said secondary sleeve extending in a proximal direction from a proximal end of said capture sleeve.

12. The capture catheter as recited in claim 1, wherein said capture sleeve further comprises:

a tubular sleeve configured to at least partially surround the embolic protection device and to retain the embolic protection device therein without losing a significant amount of embolic debris therefrom; and

a reinforcement mechanism cooperating with said tubular sleeve to provide said tubular sleeve with radial and axial strength to prevent said tubular sleeve from buckling or collapsing against the embolic protection device.

13. The capture catheter as recited in claim 1, wherein said deploying member comprises reinforcement mechanisms at both ends to prevent said deploying member from buckling or collapsing during displacement of said deploying member.

14. A capture catheter capable of being displaced along a guide wire to engage with an embolic protection device that collects embolic material, the capture catheter comprising:

an elongate member comprising a proximal end and a distal end, said elongate member having a first lumen configured to receive the guide wire and a second lumen configured to receive a deploying member, said distal end being adapted to prevent movement of said elongate member distal to a proximal end of the embolic protection device;

a capture sleeve slidably cooperating with at least a portion of an exterior surface of said elongate member, said capture sleeve connecting with said deploying member; and

an actuating assembly cooperating with said proximal end of said elongate member and said deploying member, wherein manipulating said activation assembly moves said deploying member.

15. The capture catheter as recited in claim 14, wherein said actuating assembly comprises:

a barrel connected to said proximal end of said elongate member, said barrel having a chamber formed therein; and

a plunger slidably engaging with at least a portion of said chamber, said plunger being connected to said deploying member such that moving said plunger moves said deploying member.

16. The capture catheter as recited in claim 15, wherein said barrel is integrally formed with said elongate member.

17. The capture catheter as recited in claim 15, wherein said plunger comprises an outer telescoping member and an inner telescoping member slidably disposed about said elongate member.

18. The capture catheter as recited in claim 17, wherein said inner telescoping member is bonded around said end of said deploying member to reinforce said deploying member.

19. The capture catheter as recited in claim 14, wherein said actuating assembly comprises:

a housing;

a slot formed on a surface of the housing;

a track disposed in the housing; and

an actuating member slidably disposed on the track, said deployment member being connected to said actuating member;

20. The capture catheter as recited in claim 19, wherein said actuating member comprising a body, and a flexible arm depending outwardly from said body and at least partially extending through said slot of said housing such that said flexible arm is accessible by an operator to move said actuating member along said track.

21. The capture catheter as recited in claim 14, wherein said capture sleeve comprises:

a tubular sleeve; and

a reinforcement mechanism disposed in cooperation with said tubular sleeve to provide axial and radial strength to said tubular sleeve.

22. The capture catheter as recited in claim 14, wherein said capture sleeve comprises a tubular sleeve.

23. The capture catheter as recited in claim 14, further comprising a transition sleeve disposed over at least a portion of an exterior surface of said elongate member and at least a portion of said exterior surface of said capture sleeve.

24. The capture catheter as recited in claim 14, wherein said second lumen terminates proximal to a distal end of said elongate member.

25. The capture catheter as recited in claim 14, further comprising a secondary sleeve coupled to said capture sleeve, wherein said secondary sleeve extends from said capture sleeve to a location where said second lumen terminates upon said capture sleeve being moved a maximum distance in a distal direction.

26. The capture catheter as recited in claim 24, wherein said secondary sleeve prevents buckling of said deploying member as said capture sleeve is moved in the distal direction.

27. The capture catheter as recited in claim 14, wherein moving said deploying member displaces said capture sleeve relative to said elongate member to engage with or release at least a portion of the embolic protection device

29. The capture catheter as recited in claim 27, wherein said first tubular member and second tubular member are formed integrally.

30. The capture catheter as recited in claim 27, wherein the outer diameter around said first lumen is smaller than the outer diameter around said second lumen of said second tubular member and smaller than the outer diameter of said first tubular member, forming a space therebetween.

31. The capture catheter as recited in claim 29, wherein said sleeve is connected to said actuating assembly by a connecting member which is disposed in said space.

32. The capture catheter as recited in claim 29, wherein an end portion of said second tubular member is tapered.

33. The capture catheter as recited in claim 29, wherein said distal end of said first tubular member comprises a plurality of grooves and said proximal end of said sleeve comprises a stop member such that said plurality of grooves and said stop member cooperate to form a plurality of mechanical stops.

34. The capture catheter as recited in claim 29, further comprising a reinforcement mechanism disposed in cooperation with said sleeve to confer axial and radial strength to said sleeve.

28. A capture catheter adapted to at least partially surround a filter device adapted to capture embolic material, the capture catheter comprising:

(a) a first tubular member adapted to cooperate with an actuating assembly having a deploying member, said first tubular member comprising;

(i) a first end adapted to cooperate with said actuating assembly;

(ii) a second end; and

(iii) a lumen extending from said first end to said second end, said lumen receiving at least a portion of said deploying member;

(b) a second tubular member cooperating with said second end of said first tubular member;

said second tubular member comprising;

(i) a first lumen configured to be disposed adjacent to said lumen of said first tubular member; and

(ii) an end portion disposed at a distal end of said second tubular member; and

(c) a sleeve slidably cooperating with said second tubular member, said sleeve coupled to said deploying member of said actuating assembly and adapted to slide over at least a portion of an exterior surface of said second tubular member as said actuating element is displaced in a distal direction.