Rapid exchange catheters and embolic protection devices

• US 7,955,351 B2
• Filed: 02/17/2006
• Issued: 06/07/2011
• Est. Priority Date: 02/18/2005
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Tyco Healthcare Group LP (Medtronic Plc)
• Inventors: von Lehe, Cathleen, Sirivong, Sengkham
• Primary Examiner(s): Jackson; Gary
• Assistant Examiner(s): Mendoza; Michael G
• Application Number:
  US11/357,404
• Publication Number:
  US 20060190025A1
• Time in Patent Office: 1,936 Days
• Field of Search: 606/200, 606/127, 606/159, 600/585
• US Class Current: 606/200
• CPC Class Codes: A61B 17/12022 Occluding by internal devices, e.g. balloons or releasable wires plugging an opening in the wall of an organ A61B17/0057; occluders for the cervical canal A61F6/146; vas deferens occluders A61F6/20
• CPC Class Codes: A61B 17/12109 in a blood vessel
• CPC Class Codes: A61B 17/12122 within the heart for closing a cardiac septal defect A61B17/0057
• CPC Class Codes: A61B 17/12172 having a pre-set deployed three-dimensional shape methods of manufacturing A61B2017/00526
• CPC Class Codes: A61B 2017/1205 Introduction devices
• 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 2002/015 Stop means therefor
• CPC Class Codes: A61F 2002/016 made from wire-like elements
• CPC Class Codes: A61F 2002/018 made from tubes or sheets of material, e.g. by etching or laser-cutting
• CPC Class Codes: A61F 2230/0008 elliptical or oval
• CPC Class Codes: A61F 2230/0067 conical
• CPC Class Codes: A61M 2025/0183 Rapid exchange or monorail catheters
• CPC Class Codes: A61M 25/0023 by the form of the lumen, e.g. cross-section, variable diameter

Abstract

A catheter comprising a housing portion defining an interior cavity and the housing portion comprising a housing member having an interior space dimensioned for housing an indwelling medical device. The elongated member comprises a lumen extending at least from an exit port to a distal port, the housing member is disposed within the lumen, and the lumen is dimensioned in the housing portion to receive a guidewire outside of the interior space of the housing member. A medical device for filtering emboli from blood flowing in a blood vessel of patient comprising an elongate support member and an elongate side branch member connected to the elongate support member. The filter element is attached to the elongate side branch member by a proximal filter element slider, and the elongate side branch member is adapted to maintain the filter element centered in the vessel.

Claims

1. A medical device for maintaining an embolic protection device in a blood vessel in a patient'"'"'s body comprising:

an elongate support member;

an elongate side branch member connected to the elongate support member, the elongate side branch member angling away from the elongate support member over at least a portion of a length of the elongate side branch member; and

an embolic protection device attached to the elongate side branch member by a proximal embolic protection device slider that slides over the elongate side branch member,

the elongate side branch member being adapted to maintain the elongate support member centered in the vessel.

2. A medical device of claim 1, wherein the embolic protection device is attached to the elongate support member.

3. A medical device of claim 1, wherein the embolic protection device is a filter.

4. A medical device of claim 1, wherein the embolic protection device is an occlusive device.

5. A medical device for filtering emboli from blood flowing in a blood vessel of patient comprising:

an elongate support member;

an elongate side branch member connected to the elongate support member, the elongate side branch member angling away from the elongate support member over at least a portion of a length of the elongate side branch member; and

a filter element being expandable from a collapsed configuration when the filter element is restrained to an expanded configuration when the filter element is unrestrained, wherein the filter element comprises a material having pores, wherein the filter element has proximal and distal portions, the filter element having a shape in the expanded configuration which defines an interior cavity having a proximal facing opening,

the filter element being attached to the elongate side branch member by a proximal filter element slider that slides over the elongate side branch member,

the elongate side branch member being adapted to maintain the filter element elongate support member centered in the vessel.

6. A medical device of claim 5, wherein the material having pores is self-expanding.

7. A medical device of claim 6, wherein the material having pores comprises wires braided to form pores.

8. A medical device of claim 5, wherein the elongate support member has distal and proximal portions and the filter element is attached to the elongate support member in a distal portion of the elongate support member.

9. A medical device of claim 5, wherein the elongate support member has a distal end and the filter element is attached to the elongate support member at or near the distal end.

10. A medical device of claim 5, wherein the elongate side branch member is connected to the elongate support member by a proximal side branch member slider and a distal side branch member slider.

11. A medical device of claim 10, wherein the filter element is attached to the elongate support member by a distal filter element slider.

12. A medical device of claim 11, wherein in its expanded configuration, (i) the proximal side branch member slider is proximal of the proximal filter element slider, (ii) the proximal filter element slider is proximal of the distal side branch member slider, and (iii) the distal side branch member slider is proximal of the distal filter element slider.

13. A medical device of claim 12, wherein the elongate support member includes a proximal stop and a distal stop with both stops being distal to the distal side branch member slider and proximal of the distal filter element slider.

14. A medical device of claim 5, wherein the filter element is attached to the elongate support member by a distal filter element slider.

15. A medical device of claim 5, wherein the elongate side branch member is connected to the elongate support member by a proximal side branch member slider.

16. A medical device of claim 15, wherein the elongate side branch member has a distal end that comprises a distal end stop and the distal end is not connected to the elongate support member.

17. A medical device of claim 16, wherein the filter element is attached to the elongate support member by a distal filter element slider.

18. A medical device of claim 17, wherein in its expanded configuration, the proximal side branch member slider is proximal of the proximal filter element slider.

19. A medical device of claim 18, wherein the elongate member includes an elongate member stop, the elongate member stop being distal of the proximal side branch member slider and being proximal of the distal filter element slider.

20. A medical device of claim 5, wherein the elongate support member has a distal end portion and the elongate side branch member is a loop portion of the elongate support member at the distal end portion.

21. A medical device of claim 20, wherein the proximal filter element slider provides the only connection between the filter element and the elongate side branch member, and the filter element is not connected to the elongate support member.

22. A medical device of claim 5, wherein the filter element is attached to the elongate side branch member by the proximal filter element slider and a distal filter element slider.

23. A medical device of claim 22, wherein the elongate support member has a distal end, a tube is fixed on the elongate side branch member between the proximal and distal filter element sliders, and the tube slideably receives the distal end of the elongate support member.

24. A medical device of claim 5, wherein the elongate support member comprises a slot in which a sliding element is disposed and the elongate side branch member is connected to the elongate support member by the proximal sliding element.

25. A medical device of claim 24, wherein a distal dual side branch member and filter element slider connects the elongate side branch member and the filter element to the elongate support member.

26. A medical device of claim 5, wherein the elongate side branch member is connected to the elongate support member by a proximal side branch member slider and a distal dual side branch member and filter element slider, the distal dual side branch member and filter element slider connecting the filter element to the elongate support member.

27. A medical device of claim 26, wherein the elongate member includes a stop distal to the proximal side branch member slider and proximal of the distal dual side branch member and filter element slider.