Variably-shaped vascular devices

• US 8,721,677 B1
• Filed: 12/18/2013
• Issued: 05/13/2014
• 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): Severson, Ryan
• Assistant Examiner(s): Miles, Jonathan W
• Application Number:
  US14/132,493
• Time in Patent Office: 146 Days
• Field of Search: 623/1.13, 623/1.14, 623/1.15, 623/1.16, 623/1.17, 623/1.18, 623/1.19, 623/1.2, 623/1.21, 623/1.3, 623/1.31, 623/1.34, 623/1.51, 623/1.53, 623/13.19, 606/159, 606/191, 606/198, 606/200, 606/228, 606/229, 606/230, 606/231, 600/139, 600/140, 600/141, 600/142, 600/146, 600/587, 604/523, 604/524, 604/525
• US Class Current: 606/200
• CPC Class Codes: A61B 17/12109 in a blood vessel
• CPC Class Codes: A61B 17/12113 within an aneurysm
• 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 17/22 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 17/22031 Gripping instruments, e.g. forceps, for removing or smashing calculi A61B17/221 takes precedence
• CPC Class Codes: A61B 17/22032 having inflatable gripping elements balloon catheters A61M25/10
• 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 17/3207 Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions A61B17/32037 takes precedence; endoscopic cutting instruments A61B17/320016
• CPC Class Codes: A61B 2017/00526 Methods of manufacturing
• CPC Class Codes: A61B 2017/00575 for closure at remote site, e.g. closing atrial septum defects
• CPC Class Codes: A61B 2017/00592 Elastic or resilient implements
• CPC Class Codes: A61B 2017/00606 Implements H-shaped in cross-section, i.e. with occluders on both sides of the opening
• CPC Class Codes: A61B 2017/00641 for closing fistulae, e.g. anorectal fistulae
• CPC Class Codes: A61B 2017/00778 Operations on blood vessels A61B2017/22097, A61B2017/320741 take precedence
• CPC Class Codes: A61B 2017/22001 Angioplasty, e.g. PCTA
• CPC Class Codes: A61B 2017/22002 preventing restenosis
• CPC Class Codes: A61B 2017/22034 for gripping the obstruction or the tissue part from inside
• CPC Class Codes: A61B 2017/22035 for retrieving or repositioning foreign objects
• CPC Class Codes: A61B 2017/22067 : Blocking; Occlusion A61B2017/22054 takes precedence
• CPC Class Codes: A61B 2090/3966 : Radiopaque markers visible in an X-ray image
• CPC Class Codes: A61B 90/39 : Markers, e.g. radio-opaque or breast lesions markers
• CPC Class Codes: A61F 2/011 : Instruments for their placement or removal
• CPC Class Codes: A61F 2002/018 : made from tubes or sheets of material, e.g. by etching or laser-cutting
• CPC Class Codes: A61M 1/74 : Suction control underwater drainage A61M1/61
• CPC Class Codes: A61M 1/84 : Drainage tubes; Aspiration tips for negative pressure wound therapy A61M1/90; for surgical cutting instruments A61B17/32
• CPC Class Codes: A61M 2025/0042 : Microcatheters, cannula or the like having outside diameters around 1 mm or less
• CPC Class Codes: A61M 2202/06 : Solids
• CPC Class Codes: A61M 2207/10 : Device therefor
• CPC Class Codes: A61M 2210/12 : Blood circulatory system
• CPC Class Codes: A61M 25/0023 : by the form of the lumen, e.g. cross-section, variable diameter
• CPC Class Codes: A61M 25/10 : Balloon catheters A61M25/0125 takes precedence; embolectomy A61B17/22032; retractors A61B17/02; inflatable balloons for placing stents or stent-grafts A61F2/958 ; stomach balloons for treatment of obesity A61F5/0003; oesophagal tubes A61J15/00
• CPC Class Codes: A61M 29/00 : Dilators with or without means for introducing media, e.g. remedies instruments for performing visual medical inspections of cavities or tubes of the body A61B1/00
• CPC Class Codes: B23K 26/083 : Devices involving movement of the workpiece in at least one axial direction
• CPC Class Codes: B23K 26/14 : using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor B23K26/12 takes precedence
• CPC Class Codes: B23K 26/142 : for the removal of by-products
• CPC Class Codes: B23K 26/1435 : involving specially adapted flow control means
• CPC Class Codes: B23K 26/146 : the fluid stream containing a liquid
• CPC Class Codes: B23K 26/20 : Bonding soldering by means of radiant energy B23K1/005; joining of preformed plastics parts by heating using laser beam B29C65/16
• CPC Class Codes: B23K 26/38 : by boring or cutting
• CPC Class Codes: B26F 3/004 : by means of a fluid jet methods for use of abrasive blasting for cutting B24C1/045; guns for abrasive fluid jets B24C5/02; perforating by non-mechanical means, e.g. by fluid jet B26F1/26
• CPC Class Codes: D04C 1/06 : Braid or lace serving particular purposes
• CPC Class Codes: D04C 1/12 : Cords, lines, or tows
• CPC Class Codes: D04C 3/48 : Auxiliary devices
• CPC Class Codes: D10B 2403/0333 : with tubular portions of variable diameter or distinct axial orientation
• CPC Class Codes: D10B 2509/06 : Vascular grafts; stents
• CPC Class Codes: Y10T 137/8376 : Combined
• CPC Class Codes: Y10T 137/85954 : Closed circulating system
• CPC Class Codes: Y10T 156/10 : Methods of surface bonding and/or assembly therefor
• CPC Class Codes: Y10T 29/49913 : by constricting outer annulus
• CPC Class Codes: Y10T 29/49995 : Shaping one-piece blank by removing material
• CPC Class Codes: Y10T 82/2521 : Bar feeder

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 vessel, the device comprising:

a plurality of wires woven to form a textile structure,

the textile structure comprising;

a proximal end,

a distal end,

a longitudinal axis extending from the proximal end to the distal end,

a plurality of bulbs, and

a plurality of necks,

wherein the textile structure is expandable from a radially-compressed state to a radially-expanded state,

wherein the plurality of wires comprises a plurality of shape-memory wires and a plurality of radiopaque wires,

wherein pairs of bulbs of the plurality of bulbs are spaced along the longitudinal axis of the textile structure by a neck of the plurality of necks,

wherein a first neck of the plurality of necks has a different neck parameter than a second neck of the plurality of necks at least when the textile structure is in the radially-expanded state,

wherein the different neck parameter includes at least one of;

a neck length along the longitudinal axis, and

a neck diameter transverse to the longitudinal axis.

2. The device of claim 1, wherein each of the plurality of bulbs has a generally spherical shape in the radially expanded state and wherein each of the plurality of necks is generally cylindrical along the longitudinal axis.

3. The device of claim 1, wherein outer diameters of the plurality of bulbs vary between the proximal end to the distal end.

4. The device of claim 1, wherein the textile structure is tapered or stepped from the proximal end to the distal end.

5. The device of claim 1, wherein the different neck parameter is the neck length.

6. The device of claim 1, wherein the different neck parameter is the neck diameter.

7. The device of claim 6, wherein the first neck has a different neck length than a third neck.

8. The device of claim 1, wherein the plurality of necks comprises:

the first neck having a first neck length;

the second neck having a second neck length; and

a third neck having a third neck length,

wherein the first neck length is shorter than the second neck length, and

wherein the third neck length is longer than the second neck length.

9. The device of claim 8, wherein the first neck and the second neck are not consecutive along the longitudinal axis.

10. The device of claim 1, wherein the plurality of bulbs comprises nine bulbs, and wherein the plurality of necks comprises:

a first neck between a first bulb and a second bulb, the first neck having a first neck diameter and a first neck length;

a second neck between the second bulb and a third bulb, the second neck having the first neck diameter and the first neck length,

a third neck between the third bulb and a fourth bulb, the third neck having a second neck diameter and the first neck length, the second neck diameter larger than the first neck diameter;

a fourth neck between the fourth bulb and a fifth bulb, the fourth neck having the first neck diameter and a second neck length, the second neck length longer than the first neck length;

a fifth neck between the fifth bulb and a sixth bulb, the fifth neck having the first neck diameter and the first neck length;

a sixth neck between the sixth bulb and a seventh bulb, the sixth neck having the second neck diameter and the first neck length;

a seventh neck between the seventh bulb and an eighth bulb, the seventh neck having the first neck diameter and the second neck length; and

an eighth neck between the eighth bulb and a ninth bulb, the eighth neck having a third neck diameter and the first neck length, the third neck diameter larger than the second neck diameter.

11. A device for treating a vessel, the device comprising:

a plurality of shape-memory wires and a plurality of radiopaque wires woven to form a textile structure,

the textile structure being expandable from a radially-compressed state to a radially-expanded state,

the textile structure comprising a plurality of bulbs spaced along a longitudinal axis of the textile structure by a plurality of necks, at least one neck of the plurality of necks having a different neck parameter than another neck of the plurality of necks, the neck parameter including at least one of length, diameter, and shape.

12. The device of claim 11, wherein each of the plurality of bulbs has a generally spherical shape in the radially-expanded state, and wherein each of the plurality of necks is generally cylindrical.

13. The device of claim 11, wherein outer diameters of the plurality of bulbs vary from a first end of the textile structure to a second end of the textile structure.

14. The device of claim 11, wherein the different neck parameter is length.

15. The device of claim 11, wherein the different neck parameter is diameter.

16. The device of claim 11, wherein the different neck parameter is shape.

17. A device for treating a vessel, the device comprising:

a plurality of wires woven to form a textile structure,

the textile structure being expandable from a radially-compressed state to a radially-expanded state,

the textile structure comprising;

a plurality of bulbs, and

a plurality of necks,

wherein pairs of bulbs of the plurality of bulbs are spaced along a longitudinal axis of the textile structure by a neck of the plurality of necks,

wherein a first neck of the plurality of necks and a second neck of the plurality of necks have at least one of a different neck length, a different neck diameter, and a different neck shape.

18. The device of claim 17, wherein the device is sized for treatment of the vessel in a brain or a leg.

19. The device of claim 17, wherein at least two necks of the plurality of necks that are consecutive along the longitudinal axis have the different neck length, and wherein at least two necks of the plurality of necks that are consecutive along the longitudinal axis have the different neck diameter, each of the at least two necks comprising the same necks, sharing at least one neck, or comprising different necks.

20. The device of claim 17, wherein the first neck and the second neck have a different neck length and wherein the second neck and a third neck have a different neck diameter.