Percutaneous catheter and guidewire having filter and medical device deployment capabilities

• US 7,691,123 B2
• Filed: 08/18/2005
• Issued: 04/06/2010
• Est. Priority Date: 05/08/1997
• Status: Expired due to Fees

• Current Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Inventors: Tsugita, Ross S., Maahs, Tracy D., Jang, Yue-Teh
• Primary Examiner(s): Manahan; Todd E
• Assistant Examiner(s): DOWE, KATHERINE MARIE
• Application Number:
  US11/206,616
• Publication Number:
  US 20060015140A1
• Time in Patent Office: 1,692 Days
• Field of Search: 606/200, 606/159
• US Class Current: 606/200
• CPC Class Codes: A61B 2017/320716 comprising means for preventing embolism by dislodged material
• CPC Class Codes: A61F 2/011 Instruments for their placement or removal
• CPC Class Codes: A61F 2/013 Distal protection devices, i.e. devices placed distally in combination with another endovascular procedure, e.g. angioplasty or stenting
• CPC Class Codes: A61F 2/82 Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents stent-grafts for tubular structures of the body other than blood vessels A61F2/04; stent-grafts for blood vessels A61F2/07; instruments specially adapted for placement or removal of stents or stent-grafts A61F2/95; for closing wounds, or holding wounds closed A61B17/04 - A61B17/115; dilators A61M29/00
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• 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 2230/005 Rosette-shaped, e.g. star-shaped
• CPC Class Codes: A61F 2230/0067 conical
• CPC Class Codes: A61F 2230/0071 spherical
• CPC Class Codes: A61F 2230/0076 ellipsoidal or ovoid
• CPC Class Codes: A61F 2230/008 paraboloidal
• CPC Class Codes: A61F 2250/0003 having an inflatable pocket filled with fluid, e.g. liquid or gas

Abstract

The invention provides a nested tubing cannula which comprises outer and inner elongate tubular members, both having a proximal end, a distal end, and a lumen therebetween. The inner tubular member is sealed at its distal end and is nested substantially coaxially within the lumen of the outer tubular member, so that the gap between the inner and the outer tubular member defines a second lumen whereas the first lumen is the lumen of the inner tubular member. A tubular sleeve is disposed coaxially between the inner and outer tubular members. A balloon is mounted on a distal region of the outer tubular member and is in communication with the first lumen. The cannula further comprises a port proximal or distal the balloon occluder and is in communication with the second lumen. Methods for making the devices herein are disclosed.

Claims

1. A distal protection device, comprising:

a filter frame comprising a plurality of struts, the struts having proximal and distal portions;

a first elongate member having a distal section, the distal section directly attached to the distal portion of the struts;

a second elongate member having a distal section, the distal section directly attached to the proximal portion of the struts,

wherein the struts have a first position wherein the struts are wrapped around the first elongate member;

wherein the struts have a second position wherein the struts are deployed away from the first elongate member such that the struts are not wrapped around the first elongate member, forming a filter basket, further wherein at least a portion of the filter basket comprises a filter material disposed on the struts; and

wherein the struts are moved between the first and second positions by rotating the first and second elongate members relative to one another.

2. The distal protection device of claim 1, wherein a distal end of the first member is attached to a distal end of the struts.

3. The distal protection device of claim 1, wherein a distal end of the second member is attached to a proximal end of the struts.

4. The distal protection device of claim 1, wherein the second elongate member is a tubular member, and the first elongate member extends down a lumen defined by the tubular member.

5. The distal protection device of claim 4, wherein the first elongate member is a wire.

6. The distal protection device of claim 1, wherein the first and second elongate members can move longitudinally relative to one another.

7. The distal protection device of claim 1, wherein the filter material is disposed on the distal portion of the struts.

8. The distal protection device of claim 7, wherein the filter material is disposed on the outside of the filter frame.

9. The distal protection device of claim 7, the filter material defining an open end and a closed end, the open end opening proximally.

10. The distal protection device of claim 1, wherein the struts are predisposed to assuming the second position.

11. The distal protection device of claim 1, wherein in the first position, at least a portion of the filter material is held near the first elongate member by at least one strut and in the second position the filter material is substantially free to expand.

12. A distal protection device, comprising:

a filter comprising a filter frame and a filter material, the filter material defining an open end and a closed end;

a first elongate member having a distal end, the distal end attached to the closed end of the filter material;

a second elongate member having a distal end, the distal end attached to a proximal portion of the filter,

wherein the filter frame extends from the second elongate member distal end to the first elongate member distal end;

wherein the filter has a first position wherein the filter is wrapped around the first elongate member;

wherein the filter has a second position wherein the filter is deployed away from the first elongate member, forming a filter basket, and

wherein the filter is moved between the first and second positions by rotating the first and second elongate members relative to one another without longitudinal translation of the first elongate member relative to the second elongate member.

13. The distal protection device of claim 12, wherein the filter frame comprises a plurality of struts, and wherein the distal end of the second member is attached to a proximal end of the struts.

14. The distal protection device of claim 12, wherein the second elongate member is a tubular member, and the first elongate member extends down a lumen defined by the tubular member.

15. The distal protection device of claim 14, wherein the first elongate member is a wire.

16. The distal protection device of claim 12, wherein the first and second elongate members can move longitudinally relative to one another.

17. The distal protection device of claim 12, wherein the filter material is disposed on the outside of the filter frame.

18. The distal protection device of claim 12, wherein the open end opens proximally.

19. The distal protection device of claim 12, wherein the struts are predisposed to assuming the second position.

20. The distal protection device of claim 12, wherein in the first position, at least a portion of the filter material is held near the first elongate member by at least one strut and in the second position the filter material is substantially free to expand.

21. A method of deploying a distal protection device comprising:

providing a distal protection device comprising a filter material disposed on a plurality of struts, the struts having proximal and distal portions;

a first elongate member having a distal section, the distal section attached to the distal portion of the filter material;

a second elongate member having a distal section, the distal section attached to the proximal portion of the struts;

wherein the struts have a first position wherein the struts are wrapped round the first elongate member;

wherein the struts have a second position wherein the struts are deployed away from the first elongate member such that the struts are not wrapped around the first elongate member, forming a filter basket, and wherein the struts are moved between the first and second positions by rotating the first and second elongate members relative to one another;

inserting the device in a body lumen while the struts are disposed in the first position;

moving the struts from the first to the second position by rotating the first and second elongate members relative to one another without longitudinal translation of the first elongate member relative to the second elongate member.

22. The method of claim 21, further comprising the step of moving the struts from the second to the first position.

23. The method of claim 22, further comprising the step of performing a procedure in the body lumen when the struts are in the second position.

24. The method of claim 22, wherein the struts are predisposed to assuming the second position.

25. The method of claim 21, wherein in the first position, at least a portion of the filter material is held near the first elongate member by at least one strut and in the second position the filter material is substantially free to expand.