Two-way shape memory vascular treatment systems

• US 8,870,901 B1
• Filed: 08/28/2013
• Issued: 10/28/2014
• Est. Priority Date: 07/29/2013
• Status: Active Grant

• Current Assignee: Insera Therapeutics, Inc.
• Original Assignee: Insera Therapeutics, Inc.
• Inventors: Janardhan, Vallabh, Janardhan, Vikram
• Primary Examiner(s): Holwerda, Kathleen
• Assistant Examiner(s): ALEMAN, SARAH WEBB
• Application Number:
  US14/012,903
• Time in Patent Office: 426 Days
• Field of Search: 606/151, 606/159, 606/200, 623/1.15, 623/1.18, 623/1.3, 623/1.34, 623 2364- 2366
• US Class Current: 606/159
• 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 first shape at a first temperature,

wherein the first shape comprises a spiral and the first temperature is less than about 25°

C.,

a second shape at a second temperature higher than the first temperature,

wherein the second shape comprises a plurality of bulbs,

the second shape different than the first shape, and

a third shape comprising stress-induced martensite,

the third shape different than the first shape and the second shape,

wherein the textile structure is configured to self-expand from the third shape to the second shape upon deployment from a sheath, and

wherein the textile structure is configured to transform from the second shape to the first shape upon exposure to the first temperature or lower.

2. The device of claim 1, wherein the third shape comprises a cylindrical shape and wherein the stress-induced martensite is induced by inner sidewalls of the sheath.

3. The device of claim 1, wherein the plurality of bulbs comprises at least three bulbs.

4. The device of claim 1, wherein the first temperature is less than about 18°

C.

5. The device of claim 1, wherein the second temperature is at least about 25°

C.

6. The device of claim 1, wherein the plurality of bulbs comprises five to twenty bulbs.

7. The device of claim 1, wherein the textile structure is completely hollow.

8. The device of claim 1, wherein the textile structure comprises a free distal end.

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

a plurality of wires woven to form a textile structure, the textile structure comprising;

a first shape at a first temperature,

the first shape comprising a spiral,

a second shape at a second temperature higher than the first temperature,

the second shape comprising a cylindrical shape,

the second shape different than the first shape, and

a third shape at a third temperature higher than the second temperature,

the third shape comprising a plurality of bulbs,

the third shape different than the first shape and the second shape,

wherein the textile structure is configured to transform from the second shape to the first shape upon exposure to the first temperature or lower, and

wherein the textile structure is configured to transform from the second shape to the third shape upon at least one of;

exposure to the third temperature or higher and deployment from a sheath.

10. The device of claim 9, wherein the first temperature is less than about 25°

C.

11. The device of claim 9, wherein the second temperature is between about 25°

C. and about 37°

C.

12. The device of claim 9, wherein the third temperature is at least about 37°

C.

13. The device of claim 9, wherein the first temperature is less than about 18°

C.

14. The device of claim 9, wherein the plurality of bulbs comprises at least three bulbs.

15. The device of claim 9, wherein the plurality of bulbs comprises five to twenty bulbs.

16. The device of claim 9, wherein the textile structure is completely hollow.

17. The device of claim 9, wherein the textile structure comprises a free distal end.

18. The device of claim 9, wherein at least one bulb of the plurality of bulbs has a spherical shape and wherein a first bulb of the plurality of bulbs has a smaller diameter than a second bulb of the plurality of bulbs.