Free end vascular treatment systems

• US 9,592,068 B2
• Filed: 11/24/2014
• Issued: 03/14/2017
• Est. Priority Date: 03/15/2013
• Status: Active Grant

• Current Assignee: Insera Therapeutics, Inc.
• Original Assignee: Insera Therapeutics, Inc.
• Inventors: Janardhan, Vallabh, Janardhan, Vikram
• Primary Examiner(s): MILES, JONATHAN WADE
• Application Number:
  US14/551,337
• Publication Number:
  US 20150080941A1
• Time in Patent Office: 841 Days
• US Class Current: 1/1
• CPC Class Codes: A61B 17/12109 in a blood vessel
• CPC Class Codes: A61B 17/12113 within an aneurysm
• CPC Class Codes: A61B 17/12118 for positioning in conjunction with a stent
• CPC Class Codes: A61B 17/12122 within the heart for closing a cardiac septal defect A61B17/0057
• CPC Class Codes: A61B 17/12172 having a pre-set deployed three-dimensional shape methods of manufacturing A61B2017/00526
• CPC Class Codes: A61B 17/22031 Gripping instruments, e.g. forceps, for removing or smashing calculi A61B17/221 takes precedence
• 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 2017/00526 Methods of manufacturing
• CPC Class Codes: A61B 2017/00867 shape memory effect
• CPC Class Codes: A61B 2017/00955 thermoplastic
• CPC Class Codes: A61B 2017/12077 Joint changing shape upon application of heat, e.g. bi-metal or reversible thermal memory
• CPC Class Codes: A61B 2017/22034 for gripping the obstruction or the tissue part from inside
• CPC Class Codes: A61B 2017/22038 with a guide wire
• CPC Class Codes: A61B 2017/2217 single wire changing shape to a gripping configuration
• CPC Class Codes: A61B 2090/3966 Radiopaque markers visible in an X-ray image
• CPC Class Codes: A61M 2025/0042 Microcatheters, cannula or the like having outside diameters around 1 mm or less
• CPC Class Codes: A61M 25/0015 Making lateral openings in a catheter tube, e.g. holes, slits, ports, piercings of guidewire ports; Methods for processing the holes, e.g. smoothing the edges
• CPC Class Codes: A61M 25/0021 characterised by the form of the tubing A61M25/0054 takes precedence
• CPC Class Codes: A61M 25/0043 characterised by structural features
• CPC Class Codes: D04C 1/06 Braid or lace serving particular purposes
• CPC Class Codes: D04C 3/48 : Auxiliary devices
• CPC Class Codes: D10B 2509/06 : Vascular grafts; stents
• CPC Class Codes: Y10T 156/1062 : Prior to assembly
• CPC Class Codes: Y10T 83/0596 : Cutting wall of hollow work

Abstract

Vascular treatment and methods include a plurality of self-expanding bulbs and a hypotube including interspersed patterns of longitudinally spaced rows of kerfs. Joints between woven structures and hypotubes include solder. Woven structures include patterns of radiopaque filaments measureable under x-ray. Structures are heat treated to include at least shapes at different temperatures. A catheter includes a hypotube including interspersed patterns of longitudinally spaced rows of kerfs. Heat treating systems include a detachable flange. Laser cutting systems include a fluid flow system.

Claims

1. A device for treating a thrombus in a vessel, the device comprising:

a textile structure comprising a plurality of filaments woven together,

the plurality of filaments comprising;

a plurality of radiopaque filaments, and

a plurality of shape memory filaments,

the textile structure configured to self-expand from a radially collapsed state to a radially expanded state upon release from a microcatheter,

the textile structure having a braid angle between 130° and

160°

,

the textile structure having a pics per inch between 150 and 190,

the textile structure, in the radially expanded state, comprising an undulating shape comprising;

hills, and

valleys between the hills;

a delivery system having a distal end; and

a bond comprising the distal end of the delivery system fixably coupled to a first end of the textile structure, wherein a second end of the textile structure is free.

2. The device of claim 1, wherein the first end is a proximal end of the textile structure.

3. The device of claim 1, wherein the bond comprises the first end of the textile structure inlay bonded to the distal end of the delivery system.

4. The device of claim 1, wherein the bond comprises the first end of the textile structure overlay bonded to the distal end of the delivery system.

5. The device of claim 1, wherein the textile structure comprises a narrow distal tip.

6. The device of claim 1, wherein the plurality of radiopaque filaments are grouped to increase radiopacity during fluoroscopy, wherein at least two of the hills have different diameters in the radially expanded state, wherein at least two of the hills have different shapes in the radially expanded state, and wherein a ratio of rotation of the delivery system to rotation of the textile structure is not 1:

1.

7. A device for treating a thrombus in a vessel, the device comprising:

a textile structure comprising a plurality of filaments woven together,

the textile structure configured to self-expand from a radially collapsed state to a radially expanded state upon release from a microcatheter,

the textile structure, in the radially expanded state, comprising an undulating shape comprising;

hills, and

valleys between the hills; and

a delivery system having a distal end;

wherein the distal end of the delivery system is fixably coupled to a first end of the textile structure,

wherein a second end of the textile structure is free, and

wherein a ratio of rotation of the delivery system to rotation of the textile structure is not 1;

1.

8. The device of claim 7, wherein the first end is a proximal end of the textile structure, and wherein the first end of the textile structure is inlay bonded to the distal end of the delivery system.

9. The device of claim 7, wherein the first end of the textile structure is overlay bonded to the distal end of the delivery system.

10. The device of claim 7, wherein the textile structure has at least one of a braid angle between 130°

and 160° and

a pics per inch between 150 and 190.

11. The device of claim 7, wherein the textile structure has a radial force sufficient to expand a target vessel between 0% and 30%.

12. The device of claim 7, wherein the textile structure comprises a narrow distal tip.

13. The device of claim 7, wherein at least two of the hills have different diameters in the radially expanded state, and wherein at least two of the hills have different shapes in the radially expanded state.

14. A device for treating a thrombus in a vessel, the device comprising:

a textile structure comprising a plurality of filaments woven together,

the textile structure configured to self-expand from a radially collapsed state to a radially expanded state upon release from a microcatheter,

the textile structure, in the radially expanded state, comprising an undulating shape comprising;

hills, and

valleys between the hills; and

a delivery system having a distal end,

wherein the distal end of the delivery system is fixably coupled to a first end of the textile structure, and

wherein a second end of the textile structure is free.

15. The device of claim 14, wherein the first end is a proximal end of the textile structure.

16. The device of claim 14, wherein the first end of the textile structure is inlay bonded to the distal end of the delivery system.

17. The device of claim 14, wherein the first end of the textile structure is overlay bonded to the distal end of the delivery system.

18. The device of claim 14, wherein the textile structure comprises a narrow distal tip.

19. The device of claim 14, wherein at least two of the hills have different diameters in the radially expanded state, wherein at least two of the hills have different shapes in the radially expanded state, and wherein the textile structure has a braid angle between 130°

and 160° and

a pics per inch between 150 and 190.

20. The device of claim 14, wherein at least two of the hills have different diameters in the radially expanded state, and wherein a ratio of rotation of the delivery system to rotation of the textile structure is not 1:

1.