Guide extension catheter

• US 10,682,494 B2
• Filed: 05/26/2016
• Issued: 06/16/2020
• Est. Priority Date: 06/01/2015
• Status: Active Grant

• Current Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Inventors: Fuller, Jeffrey Steven, Anderson, James M., Uschold, John E.
• Primary Examiner(s): Bouchelle, Laura A
• Assistant Examiner(s): Zamory, Justin L
• Application Number:
  US15/165,124
• Publication Number:
  US 20160346502A1
• Time in Patent Office: 1,482 Days
• CPC Class Codes: A61M 2025/0175 having telescopic features, interengaging nestable members movable in relations to one another
• CPC Class Codes: A61M 25/0009 Making of catheters or other medical or surgical tubes
• CPC Class Codes: A61M 25/0069 Tip not integral with tube
• CPC Class Codes: A61M 25/008 Strength or flexibility characteristics of the catheter tip
• CPC Class Codes: A61M 25/0108 using radio-opaque or ultrasound markers
• CPC Class Codes: A61M 25/04 in the body, e.g. expansible A61M25/10, A61M16/0488 take precedence
• CPC Class Codes: B29C 48/21 the layers being joined at their surfaces
• CPC Class Codes: B29K 2101/12 Thermoplastic materials
• CPC Class Codes: B29K 2995/0011 Electromagnetic wave shielding material
• CPC Class Codes: B29L 2031/7542 Catheters

Abstract

Medical devices and methods for making and using medical devices are disclosed. An example medical device may include a guide extension catheter. The guide extension catheter may include a proximal member having a proximal end, a distal end, and a proximal diameter. The guide extension catheter may additionally include a collar member attached to the distal end of the proximal member, the collar member comprising a base portion and one or more ribs connected to the base portion and extending distally away from the base portion. In still some additional embodiments, the guide extension catheter may further include a distal sheath member attached to the collar member, the distal sheath member having a distal diameter larger than the proximal diameter.

Claims

1. A guide extension catheter comprising:

a proximal member having a proximal end, a distal end, a proximal diameter, and a first central axis;

a collar member having a proximal end and a distal end at opposing ends of the collar member, the proximal end of the collar member attached to the distal end of the proximal member and the collar member comprising a base portion and plurality of ribs connected to the base portion and extending from and distally away from the base portion and defining the distal end of the collar member;

a distal sheath member attached to the collar member, the distal sheath member having a distal diameter larger than the proximal diameter and a second central axis that is offset from the first central axis; and

wherein the base portion includes a cross-sectional dimension greater than the proximal diameter.

2. The guide extension catheter of claim 1, wherein each of the plurality of ribs are connected to the base portion at an angle extending from a respective rib of the plurality of ribs to a top of the base portion of between 15 degrees and 75 degrees.

3. The guide extension catheter of claim 1, wherein each of the plurality of ribs are connected to the base portion at an angle extending from a respective rib of the plurality of ribs to a top of the base portion of between 30 degrees and 60 degrees.

4. The guide extension catheter of claim 1, wherein each of the plurality of ribs are connected to the base portion at an angle extending from a respective rib of the plurality of ribs to a top of the base portion of 45 degrees.

5. The guide extension catheter of claim 1, wherein the plurality of ribs comprise between two ribs and ten ribs.

6. The guide extension catheter of claim 1, wherein the plurality of ribs comprise five ribs.

7. The guide extension catheter of claim 1, wherein the plurality of ribs extend away from the base portion in a twisting manner.

8. The guide extension catheter of claim 1, wherein the plurality of ribs extend away from the base portion in a helical manner.

9. The guide extension catheter of claim 1, wherein each of the plurality of ribs extends away from the base portion a same distance.

20. The guide extension catheter of claim 1, wherein the plurality of ribs extend away from the base portion in a helical manner and terminate at a distal free end adjacent the distal end of the collar member.

10. A guide extension catheter comprising:

a proximal member having a proximal end, a distal end, a proximal diameter, and a first central axis;

a hollow tube extending along a longitudinal axis and attached to the distal end of the proximal member, the hollow tube defining one or more channels extending along at least a portion of the hollow tube; and

a distal sheath member attached to the hollow tube, the distal sheath member having a distal diameter greater than the proximal diameter and a second central axis that is offset from the first central axis,

wherein the channels are angled with respect to the longitudinal axis of the hollow tube.

11. The guide extension catheter of claim 10, wherein the one or more channels are angled between about 15 degrees and 75 degrees with respect to the longitudinal axis.

12. The guide extension catheter of claim 10, wherein the one or more channels are angled between about 30 degrees and 60 degrees with respect to the longitudinal axis.

13. The guide extension catheter of claim 10, wherein the one or more channels comprise between two channels and ten channels.

14. The guide extension catheter of claim 10, wherein the one or more channels comprise between four and seven channels.

15. The guide extension catheter of claim 10, wherein the hollow tube defines the one or more channels such that each of the one or more channels has an open end and a closed end.

16. A guide extension catheter comprising:

a proximal member having a proximal end, a distal end, a proximal diameter, and a first central axis;

a collar member attached to the proximal member, the collar member having a proximal end and distal end and comprising a base portion and a distally extending portion; and

a distal sheath member attached to the collar member, the distal sheath member having a distal diameter greater than the proximal diameter and a second central axis that is offset from the first central axis,

wherein the distally extending portion has a cross-sectional surface area that varies less than 33% through the distally extending portion.

17. The guide extension catheter of claim 16, wherein the collar member has a cross-sectional surface area that varies less than 10% along the distally extending portion.

18. The guide extension catheter of claim 16, wherein the distally extending portion comprises ribs connected to the base portion and extending distally away from the base portion.

19. The guide extension catheter of claim 18, wherein the ribs extend distally away from the base portion in a helically twisting manner.