Embolic medical devices

• US 9,713,475 B2
• Filed: 04/18/2014
• Issued: 07/25/2017
• Est. Priority Date: 04/18/2014
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Vu, Khoa, Divino, Vincent, Kadam, Madhur, Rhee, Richard, Bardsley, Earl, Kulak, Julie, Carrillo, Ramon, Amefia, Kokou A.
• Primary Examiner(s): WEISBERG, AMY REGINA
• Application Number:
  US14/256,032
• Publication Number:
  US 20150297240A1
• Time in Patent Office: 1,194 Days
• CPC Class Codes: A61B 17/12113 within an aneurysm
• CPC Class Codes: A61B 17/12168 having a mesh structure A61B17/1214 takes precedence
• 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 2017/00867 shape memory effect for prostheses A61F2210/0014
• CPC Class Codes: A61B 2017/1205 Introduction devices
• CPC Class Codes: A61B 2090/0801 Prevention of accidental cutting or pricking
• CPC Class Codes: A61B 2090/3966 Radiopaque markers visible in an X-ray image

Abstract

An occlusive device for occluding a target area can include an elongate member having opposing first and second side edges extending longitudinally along the member and a member width. The member can have a collapsed configuration in which the first and second side edges are curled toward each other about a longitudinal axis of the member. Further the member can have an expanded configuration in which the member form a series of loops and the first and second side edges uncurl to be spaced apart from each other.

Claims

1. An occlusive device for occluding a target area, comprising:

an elongate member formed of a single layer sheet of mesh material having opposing first and second side edges extending longitudinally along the member, the member having a length measured along its longitudinal axis and a width measured perpendicular to the length, wherein the width is less than the length, the member having;

a collapsed configuration for delivery through a catheter to the target area, wherein, in the collapsed configuration the member is folded at least once and curled about a line substantially parallel to the longitudinal axis of the member, and the first and second side edges are positioned a first distance relative to one another; and

an expanded configuration in which the member form a series of loops and the first and second side edges uncurl to be spaced apart from each other a second distance greater than the first distance.

2. The device of claim 1, wherein the elongate member comprises a shape memory material.

3. The device of claim 1, wherein the member comprises a plurality of interwoven filaments.

4. The device of claim 3, wherein a spacing of the filaments varies along the length of the member.

5. The device of claim 3, wherein the plurality of filaments are braided together.

6. The device of claim 1, wherein the elongate member includes at least one slit.

7. The device of claim 6, wherein the at least one slit extends along the longitudinal axis of the member.

8. The device of claim 6, wherein the elongate member includes a plurality of slits extending along the longitudinal axis of the member and spaced apart in a substantially linear configuration.

9. The device of claim 1, wherein the first and second side edges comprise a plurality of wing elements extending laterally therefrom.

10. The device of claim 9, wherein the wing elements extend from opposing sides of the elongate member.

11. The device of claim 10, wherein a pair of wing elements extend from opposing sides at a first longitudinal position along the member.

12. The device of claim 10, wherein the wing elements comprise first and second sets of wing elements, the first set extending from a first side of the member and the second set extending from a second side of the member at different longitudinal positions than the first set.