Stent delivery handle

• US 6,190,360 B1
• Filed: 04/09/1999
• Issued: 02/20/2001
• Est. Priority Date: 04/09/1999
• Status: Expired due to Term

• Current Assignee: Endotex Interventional Systems Incorporated (Boston Scientific Corporation)
• Original Assignee: Endotex Interventional Systems Incorporated (Boston Scientific Corporation)
• Inventors: Khosravi, Farhad, Iancea, Octavian
• Primary Examiner(s): Nguyen, Anhtuan T.
• Application Number:
  US09/289,052
• Time in Patent Office: 683 Days
• Field of Search: 604/158, 604/165.01, 604/167.02, 604/264, 604/168, 604/154, 604/160, 604/164.04, 604/164.09, 604/164.1, 604/164.11, 604/164.12, 604/165.02
• US Class Current: 604/164.09
• 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

Abstract

A handle device for a catheter-sheath assembly includes a handle member having proximal and distal ends, and a control member including a tubular portion coupled to a control portion, the control portion slidably coupled to the handle member. A cooperating rail and wheel are provided on the handle member and the control portion for directing the control portion axially with respect to the handle member upon rotation of the wheel. A tubular sheath extends distally from the tubular portion, and a catheter or bumper is secured to the handle member that extends through the tubular portion into the sheath. The control portion is directable between distal and proximal positions to direct the tubular portion proximally and consequently retract the sheath with respect to the catheter or bumper to deploy a stent or other element from within the sheath.

Claims

1. An apparatus for treating a remote location within a body lumen of a patient, comprising:

a handle member having proximal and distal ends and proximal and distal portions defining a longitudinal axis therebetween, and a lumen therein extending between the proximal and distal ends;

a control member comprising a tubular portion aligned with the lumen of the handle member and a control portion slidably coupled to received on the distal portion of the handle member, the control portion being directable axially with respect to the handle member between distal and proximal positions;

a tubular outer member extending distally from the tubular portion of the control member;

an elongate inner member extending through the lumen in the handle member and through the tubular portion of the control member into the outer member, the inner member being substantially secured axially with respect to the handle member;

a rail extending axially along the distal portion of the handle member; and

a guide member on the control member engaging the rail for preventing rotation of the control member relative to the handle member about the longitudinal axis.

2. The apparatus of claim 1, wherein the outer member has a distal end, and the inner member has a distal end disposed proximate the distal end of the outer member, and wherein the outer member is directable between distal and proximal positions when the control portion is directed between its distal and proximal positions, for covering and uncovering, respectively, the distal end of the inner member.

3. The apparatus of claim 2, wherein the inner and outer members have a predetermined relative length such that when the outer member is in its distal position, the distal end of the outer member extends a predetermined distance beyond the distal end of the inner member, thereby defining a recess for receiving an expandable prosthesis therein.

4. The apparatus of claim 2, wherein the inner member has a treatment element on its distal end.

5. The apparatus of claim 4, wherein the treatment element comprises an expandable prosthesis, the prosthesis being deployable when the distal end of the inner member is uncovered from the outer member.

6. The apparatus of claim 4, wherein the treatment element comprises an expandable member.

7. The apparatus of claim 1, wherein the handle member comprises a locking mechanism thereon having an open position for allowing the inner member to be inserted into the lumen in the handle member, and a closed position for substantially securing the relative axial position of the inner member and the handle member.

8. The apparatus of claim 7, wherein the locking mechanism comprises a hemostatic seal on the proximal portion of the handle member.

9. The apparatus of claim 1, further comprising a locking mechanism for substantially securing the control member in one of its proximal and distal positions.

10. The apparatus of claim 9, wherein the locking mechanism comprises a removable pin extending into both the control member and the handle member.

11. The apparatus of claim 1, wherein the control portion comprises a finger grip.

12. The apparatus of claim 1, wherein the control portion of the control member has a tubular shape defining a passage into which the distal portion of the handle member is slidably received.

13. The apparatus of claim 1, wherein the rail comprises an axial groove formed in the distal portion of the handle member, and the guide member comprises an extension element extending from the control member into the groove.

14. The apparatus of claim 1, wherein the rail comprises a rail member extending axially along the distal portion of the handle member.

15. The apparatus of claim 14, wherein the guide member comprises a wheel rotatably mounted to the control portion of the control member, the wheel engaging the rail member for directing the control portion axially upon rotation of the wheel.

16. The apparatus of claim 1, wherein the tubular portion of the control member is disposed in the lumen of the handle member, the tubular portion being coupled to the gripping portion such that the tubular portion is directed axially within the lumen when the gripping portion is directed axially.

17. The apparatus of claim 16, wherein the tubular portion of the control member is coupled to the gripping portion by a hub extending therebetween, the hub traveling in an axial slot in the distal portion of the handle member, thereby limiting the relative axial movement of the control portion and the handle member.

18. The apparatus of claim 16, wherein the tubular portion of the control member travels in an enlarged region of the lumen of the handle member.

19. The apparatus of claim 18, further comprising a tubular extension portion extending distally from the proximal portion of the handle member into the enlarged region of the lumen, the tubular extension portion slidably engaging an interior of the tubular portion of the control member.

20. An apparatus for treating a remote location within a body lumen of a patient, comprising:

a handle member having proximal and distal ends defining a longitudinal axis therebetween;

a control member comprising a tubular portion and a control portion slidably coupled to the handle member, the control portion being directable axially with respect to the handle member between distal and proximal positions;

a tubular outer member attached to a distal end of the tubular portion of the control member and extending distally therefrom;

the tubular outer member being directed proximally as the control portion is directed between its distal and proximal positions;

an elongate inner member secured to the handle member and extending through the tubular portion of the control member into the outer member; and

a treatment element disposed in a lumen of the tubular outer member proximate its distal end, the elongate inner member being configured for holding the treatment element in position when the tubular outer member is being directed proximally, thereby deploying the treatment element from within the lumen of the tubular outer member.

21. The apparatus of claim 20, wherein the outer member has a distal end, and the inner member has a distal end disposed proximate the distal end of the outer member, and wherein the outer member is directable between distal and proximal positions when the control portion is directed between its distal and proximal positions, for covering and uncovering, respectively, the distal end of the inner member.

22. The apparatus of claim 21, wherein the inner member has the treatment element on its distal end.

23. The apparatus of claim 22, wherein the treatment element comprises an expandable prosthesis.

24. The apparatus of claim 22, wherein the treatment element comprises an expandable member.

25. The apparatus of claim 21, wherein the inner and outer members have a predetermined relative length such that when the outer member is in its distal position, the distal end of the outer member extends a predetermined distance beyond the distal end of the inner member, thereby defining a recess for receiving the treatment element therein.

26. The apparatus of claim 25, wherein the treatment element comprises an expandable prosthesis.

27. The apparatus of claim 26, wherein the inner member comprises a bumper for preventing proximal movement of the expandable prosthesis received in the recess when the outer member is directed proximally.

28. The apparatus of claim 20, further comprising a seal for providing a fluid-tight seal between the control member and the lumen.

29. An apparatus for treating a remote location within a body lumen of a patient, comprising:

a handle member having proximal and distal ends defining a longitudinal axis therebetween, and including a lumen extending parallel to the longitudinal axis;

a control member comprising a tubular portion and a control portion slidably received on the handle member, the control portion being directable axially with respect to the handle member between distal and proximal positions;

a tubular outer member extending distally from the tubular portion of the control member, the tubular outer member being directed proximally as the control portion is directed between its distal and proximal positions;

an elongate inner member extending through the lumen in the handle member and through the tubular portion of the control member into the outer member; and

a cooperating rail and wheel on the handle and the control portion of the control member, the wheel engaging the rail for directing the control portion axially upon rotation of the wheel.

30. An apparatus for treating a remote location within a body lumen of a patient, comprising:

a handle member having proximal and distal ends defining a longitudinal axis therebetween;

a control member comprising a tubular portion coupled to a control portion, the control portion being slidably coupled to the handle member such that the control portion is directable axially with respect to the handle member to direct the tubular portion axially;

a tubular outer member extending distally from the tubular portion of the control member;

an elongate inner member secured to the handle member and extending through the tubular portion of the control member into the outer member; and

a cooperating rail and wheel on the handle member and the control portion of the control member, the wheel engaging the rail for directing the control portion axially upon rotation of the wheel, thereby directing the tubular outer member axially with respect to the elongate inner member.

31. The apparatus of claim 30, further comprising a treatment element disposed within a lumen of the tubular outer member proximate its distal end.

32. The apparatus of claim 31, wherein the treatment element comprises a stent.

33. The apparatus of claim 32, wherein the elongate inner member comprises a bumper member having a distal end proximate the stent, whereby when the control portion is directed proximally, the outer tubular member retracts while the bumper holds the stent in position to deploy the stent from the outer tubular member.

34. The apparatus of claim 30, wherein the tubular outer member has a distal end, and the elongate inner member has a distal end disposed proximate the distal end of the tubular outer member, and wherein the tubular outer member is directable between distal and proximal positions when the control portion is directed between its distal and proximal positions, for covering and uncovering, respectively, the distal end of the elongate inner member.

35. The apparatus of claim 30, wherein the elongate inner member and the tubular outer member have a predetermined relative length such that when the tubular outer member is in its distal position, the distal end of the tubular outer member extends a predetermined distance beyond the distal end of the elongate inner member, thereby defining a recess for receiving an expandable prosthesis therein.

36. The apparatus of claim 35, further comprising an expandable prosthesis received in the recess.

37. The apparatus of claim 35, wherein the inner member comprises a bumper member for preventing proximal movement of an expandable prosthesis received in the recess when the outer member is directed proximally.

38. The apparatus of claim 30, further comprising a seal for providing a fluid-tight seal between the control member and the lumen.