CONNECTION OF AN ENDOVASCULAR INTERVENTION DEVICE TO A MANIPULATION MEMBER

• US 20140194919A1
• Filed: 03/15/2013
• Published: 07/10/2014
• Est. Priority Date: 01/09/2013
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: LOSORDO, Michael Louis, MOLAEI, Masoud, WAINWRIGHT, John, EPSTEIN, Evan David
• Granted Patent: US 9,358,021 B2
• Time in Patent Office: Days
• US Class Current: 606/200
• CPC Class Codes: A61B 17/22 Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for dilators A61M29/00
• CPC Class Codes: A61B 17/221 Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions surgical snare instruments A61B17/32056
• CPC Class Codes: A61B 17/32056 Surgical snare instruments for removing or smashing calculi A61B2017/2212; tonsillotomes A61B17/26
• CPC Class Codes: A61B 2017/00526 Methods of manufacturing
• CPC Class Codes: A61B 2017/00623 Introducing or retrieving devices therefor
• CPC Class Codes: A61B 2017/12054 Details concerning the detachment of the occluding device from the introduction device
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61M 2025/0042 Microcatheters, cannula or the like having outside diameters around 1 mm or less
• CPC Class Codes: A61M 25/0021 characterised by the form of the tubing A61M25/0054 takes precedence
• CPC Class Codes: A61M 25/0108 using radio-opaque or ultrasound markers
• CPC Class Codes: A61M 25/104 used for angioplasty

Abstract

A device for intravascular intervention can comprise an intervention element, an elongate manipulation member, and a joining element. The elongate member can comprise a hooked portion extending about a proximal portion of the intervention element. The joining element can substantially permanently attach the hooked portion to the intervention element.

Claims

1. A device for intravascular intervention, the device comprising:

an intervention element;

an elongate manipulation member comprising a hooked portion extending about a proximal portion of the intervention element; and

a joining element substantially permanently attaching the hooked portion to the intervention element.

2. The device of claim 1, wherein the joining element comprises a band that substantially surrounds at least a section of the elongate member and a segment of the intervention element.

3. The device of claim 1, further comprising a binding agent engaging each of the intervention element, the elongate member, and the joining element.

4. The device of claim 3, wherein the binding agent is a UV curable adhesive.

5. A device for intravascular intervention, the device comprising:

an elongate manipulation member comprising a distally-located attachment portion, the attachment portion comprising a first segment, a second segment, and a bend between the first and second segments;

an intervention element comprising a proximal end portion and a hole through the proximal end portion, the attachment portion of the elongate member extending through the hole at the bend such that the first segment and the second segment are located on different sides of the proximal end portion, the intervention element being substantially permanently attached to the elongate delivery member.

6. The device of claim 5, further comprising a band, wherein the band substantially surrounds at least a section of the attachment portion of the elongate member and a segment of the proximal portion of the intervention element.

7. The device of claim 6, wherein the band has an inner diameter that is less than a width of the proximal end portion of the intervention element.

8. The device of claim 6, wherein the band does not extend over the tab.

9. The device of claim 6, wherein the band is crimped onto each of the elongate member and the intervention element.

10. The device of claim 9, wherein the band is crimped onto a retention portion of the intervention element, the retention portion being positioned between the hole and a terminal proximal end of the intervention element.

11. The device of claim 9, wherein the proximal end portion of the intervention element comprises a shoulder positioned laterally of the retention portion, the shoulder extending laterally to an extent, measured from the retention portion, that is greater than or equal to a wall thickness the band.

12. The device of claim 9, wherein the retention portion comprises a proximal part and a middle part, the middle part being located between the hole and the proximal part, and the proximal part having a width greater than a width of the middle part.

13. The device of claim 9, wherein the proximal end portion of the interventional element has a top side and a bottom side, the hole extends through the proximal end portion between the top side and the bottom side, and the retention portion extends laterally beyond the attachment portion of the elongate member as viewed from the top.

14. The device of claim 13, wherein, as viewed from the top of the proximal end portion of the intervention element, the retention portion is laterally offset from the attachment portion of elongate member.

15. The device of claim 14, wherein, as viewed from the top of the proximal end portion of the intervention element, the proximal part of the retention portion underlies the attachment portion of elongate member and the middle part of the retention portion does not underlie the attachment portion.

16. The device of claim 15, wherein at least one of the first segment or the second segment of the elongate member has an extending portion that extends into a region that is (i) between the top side and the bottom side of the proximal end portion, and (ii) between the proximal part of the retention portion and the hole, the extending portion and the proximal part being aligned such that a line extending in a proximal-distal direction intersects the extending portion and the proximal part.

17. The device of claim 6, wherein the band is circumferentially continuous.

18. The device of claim 6, wherein the band is radiopaque.

19. The device of claim 6, wherein the band is circumferentially discontinuous and comprises first and second lateral edges, the band having first and second portions adjacent the first and second edges, respectively, that overlap each other.

20. The device of claim 5, further comprising a binding agent attached to the elongate member and the intervention element.

21. The device of claim 20, further comprising a band, wherein the band substantially surrounds the distal portion of the elongate member and a portion of the proximal end of the intervention element.

22. The device of claim 20, wherein the binding agent comprises an adhesive.

23. The device of claim 22, wherein the adhesive is UV curable.

24. The device of claim 5, wherein the first segment and the second segment extend generally parallel to each other.

25. The device of claim 24, wherein the elongate manipulation member further comprises a proximal terminal end and a distal terminal end, and the distal terminal end is proximal of the bend of the attachment portion.

26. A method of using a device, the device comprising an intervention element, an elongate manipulation member comprising a distally-located hooked attachment portion extending about a proximal portion of the intervention element, and a joining element substantially permanently attaching the attachment portion to the intervention element, the method comprising:

inserting the intervention element into a cerebral blood vessel using the elongate member;

manipulating the device to perform a therapy;

removing the intervention element from the cerebral blood vessel using the elongate member.

27. The method of claim 26, wherein:

the hooked attachment portion comprises a first segment, a second segment, and a bend between the first and second segments;

the intervention element comprises a hole through the proximal portion; and

the attachment portion extending through the hole at the bend such that the first segment and the second segment are located on different sides of the proximal portion.

28. The method of claim 26, wherein the device is inserted through a microcatheter.

29. The method of claim 26, wherein the removing is performed by proximally pulling the elongate member such that the intervention element is retracted into a microcatheter.

30. The method of claim 26, wherein the manipulating comprises deploying the intervention element to an expanded position.

31. The method of claim 30, wherein the deploying comprises substantially maintaining a location of the intervention element while retracting a microcatheter from over the intervention element.

32. The method of claim 30, wherein the manipulating further comprises restoring blood flow through an obstructed portion of the cerebral blood vessel.

33. The method of claim 30, wherein the manipulating further comprises capturing a thrombus.

34. The method of claim 33, wherein the removing the intervention element comprises removing the captured thrombus from the cerebral blood vessel.