Implantable luminal devices

• US 10,441,290 B2
• Filed: 05/01/2017
• Issued: 10/15/2019
• Est. Priority Date: 06/14/2013
• Status: Active Grant

• Current Assignee: ArtVentive Medical Group Inc
• Original Assignee: ArtVentive Medical Group Inc
• Inventors: Rudakov, Leon, Black, Andrew, Leopold, Andrew R., Jensen, Kelly
• Primary Examiner(s): Orkin, Alexander J
• Application Number:
  US15/583,956
• Publication Number:
  US 20170296198A1
• Time in Patent Office: 897 Days
• CPC Class Codes: A61B 17/12036 partial occlusion
• CPC Class Codes: A61B 17/1204 temporary occlusion
• CPC Class Codes: A61B 17/12109 in a blood vessel
• CPC Class Codes: A61B 17/12136 Balloons
• CPC Class Codes: A61B 17/1214 Coils or wires
• CPC Class Codes: A61B 17/12145 having a pre-set deployed three-dimensional shape methods of manufacturing A61B2017/00526
• CPC Class Codes: A61B 17/1215 comprising additional materials, e.g. thrombogenic, having filaments, having fibers, being coated
• CPC Class Codes: A61B 17/12172 having a pre-set deployed three-dimensional shape methods of manufacturing A61B2017/00526
• CPC Class Codes: A61B 17/12177 comprising additional materials, e.g. thrombogenic, having filaments, having fibers or being coated
• CPC Class Codes: A61B 2017/1205 Introduction devices

Abstract

An implant may include a frame and a cover to facilitate endoluminal vessel occlusion, selective release of embolic material toward a target region, and/or endoluminal stenting. The frame of the implant provides radial expansion properties to secure the cover within a body vessel. The cover and/or the frame can occlude flow of a fluid through the body vessel.

Claims

1. A method of assembling an implant delivery system, comprising:

providing an implant, in a relaxed state, to a catheter having a kerf (1) extending from and through an outer surface of the catheter into a lumen of the catheter, and (2) extending in a first helical direction and defining opposing sides along a helical coil;

engaging a first end portion of the implant with a proximal portion of the catheter; and

engaging a second end portion of the implant with a distal portion of the catheter, such that the implant is held in a torsional state by the catheter, and such that the implant applies a torque to the catheter to cause opposing sides of adjacent windings of the coil between the proximal portion and the distal portion to be pulled toward each other.

2. The method of claim 1, wherein the kerf has a non-linear profile following a helical path.

3. The method of claim 2, wherein, the non-linear profile comprises a triangular profile.

4. The method of claim 2, wherein, the non-linear profile comprises a sawtooth profile.

5. The method of claim 2, wherein, the non-linear profile comprises an undulating profile.

6. The method of claim 1, wherein the implant further comprises a helical member extending in a second helical direction, opposite the first helical direction.

7. The method of claim 1, wherein, while the implant is in the relaxed state, the proximal portion is configured to disengage from the first end portion and/or the distal portion is configured to disengage from the second end portion.

8. The method of claim 1, wherein the kerf is defined between adjacent windings of the helical coil, and while the implant is in the torsional state, the adjacent windings of the helical coil contact each other.

9. The method of claim 1, wherein the kerf is defined between adjacent windings of the helical coil, and while the implant is in the relaxed state, the adjacent windings of the coil are spaced apart from each other by a gap.

10. The method of claim 1, wherein the torque causes opposing sides of adjacent windings of the coil between the proximal portion and the distal portion to be pulled toward each other.

11. The method of claim 1, wherein the kerf extends between adjacent windings of the coil.

12. A method of assembling an implant delivery system, the method comprising:

providing a catheter comprising a proximal portion, a distal portion, and a helical coil extending in a first helical direction and connecting the proximal portion to the distal portion, the coil being defined by a kerf between adjacent windings of the coil;

engaging a first end portion of an implant with the catheter proximal portion, the implant being biased to a relaxed state;

moving the implant away from the relaxed state to a collapsed state and engaging a second end portion of the implant with the catheter distal portion such that the implant applies a torque to the catheter to reduce a width or pitch of the kerf between adjacent windings of the catheter coil.

13. The method of claim 12, wherein the kerf has a non-linear profile following a helical path.

14. The method of claim 12, wherein the implant further comprises a helical member extending in a second helical direction, opposite the first helical direction.

15. The method of claim 12, wherein, while the implant is in the relaxed state, the adjacent windings of the coil are spaced apart from each other by a gap.

16. The method of claim 12, wherein, while the implant is in the relaxed state, the proximal portion is configured to disengage from the first end portion and/or the distal portion is configured to disengage from the second end portion.

17. A method of assembling an implant delivery system, the method comprising:

providing a catheter comprising a proximal portion, a distal portion, and a kerf that defines windings of the catheter that connect the proximal portion to the distal portion and are movable relative to each other; and

compressing an implant onto the catheter to couple (i) a first end portion of the implant to the catheter proximal portion and (ii) a second end portion of the implant to the catheter distal portion such that the implant is engaged on the catheter in a collapsed state to apply a torque to the catheter, thereby reducing a width or pitch of a gap between adjacent windings.

18. The method of claim 17, wherein the catheter comprises a coil wherealong the kerf extends between adjacent windings of the coil.

19. The method of claim 17, wherein the kerf has a non-linear profile following a helical path.