Connection of a manipulation member, including a bend without substantial surface cracks, to an endovascular intervention device

• US 10,111,682 B2
• Filed: 07/07/2016
• Issued: 10/30/2018
• Est. Priority Date: 01/09/2013
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Johnson, Garrett, Buss, Joachim
• Primary Examiner(s): Tanner, Jocelin
• Application Number:
  US15/204,791
• Publication Number:
  US 20160317164A1
• Time in Patent Office: 845 Days
• 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 element can comprise a hooked portion extending about a proximal portion of the intervention element. The hooked portion can comprise a bend. The hooked portion can have (i) no substantial surface crack at an interior region of the bend and (ii) a maximum lateral dimension that is less than 0.027 inch. 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 metallic material forming a hooked portion extending about a proximal portion of the intervention element, the hooked portion comprising a bend, the hooked portion having (i) no substantial surface crack in the metallic material at an interior region of the bend and (ii) a maximum lateral dimension that is less than 0.027 inch; and

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

2. The device of claim 1, wherein the hooked portion comprises no surface crack that is (i) at the bend and (ii) discernable, by a normal human eye, under 10×

magnification.

3. The device of claim 2, wherein the bend has a radius that is less than double a maximum cross-sectional dimension of the elongate member in the bend.

4. The device of claim 3, wherein the bend has a radius that is less than the maximum cross-sectional dimension of the elongate member in the bend.

5. The device of claim 1, wherein the maximum lateral dimension is less than 0.021 inch.

6. The device of claim 5, wherein the maximum lateral dimension is less than 0.015 inch.

7. The device of claim 1, wherein the hooked portion comprises no surface crack at the bend.

8. The device of claim 1, wherein the hooked portion comprises no surface crack at an exterior region of the bend.

9. The device of claim 1, wherein the elongate member has a maximum cross-sectional dimension that is less than 0.007 inch along the hooked portion.

10. 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.

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

12. The device of claim 1, wherein the hooked portion further comprises a first segment and a second segment extending generally parallel to each other and proximally from the bend with the bend located between the first segment and the second segment.

13. The device of claim 12, 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.

14. The device of claim 1, wherein the elongate member comprises nickel titanium alloy.

15. The device of claim 1, wherein the elongate member further comprises a polymer coating over at least a portion thereof.

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

an elongate manipulation member comprising a metallic material forming a distally-located attachment portion, the attachment portion comprising a first segment, a second segment, and a bend, without any substantial surface crack in the metallic material, located between the first and second segments, the first segment and the second segment extending proximally from the bend, the attachment portion having (i) no substantial surface crack in the metallic material at an interior region of the bend and (ii) a maximum lateral dimension that is less than 0.027 inch;

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 manipulation member; and

a joining element substantially permanently attaching the attachment portion of the elongate member to the intervention element.

17. The device of claim 16, wherein the hooked portion comprises no surface crack that is (i) at the bend and (ii) discernable, by a normal human eye, under 10×

magnification.

18. The device of claim 17, wherein the bend has a radius that is less than double a maximum cross-sectional dimension of the elongate member in the bend.

19. The device of claim 16, wherein the joining element comprises a band that substantially surrounds at least a section of the attachment portion and a segment of the proximal end portion of the intervention element.