Devices for modifying hypotubes

• US 8,872,068 B1
• Filed: 03/25/2014
• 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): PELHAM, JOSEPH MOORE
• Application Number:
  US14/224,593
• Time in Patent Office: 217 Days
• Field of Search: None
• US Class Current: 219/121.82
• 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

A system for modifying a hypotube may include a hypotube holding subsystem, a hypotube collection subsystem, and a cooling subsystem. The hypotube holding subsystem may be configured to inhibit sag of a held hypotube. The hypotube collection subsystem may be configured to collect a hypotube after laser cutting. The cooling subsystem may include a valve configured to direct gas into the hypotube collection subsystem.

Claims

1. A system for modifying a hypotube, the system comprising:

a hypotube holding subsystem comprising;

a bushing,

a plurality of collets, and

a hypotube clamp configured to longitudinally advance a hypotube,

the bushing, the plurality of collets, and the hypotube clamp aligned at a height, above a floor on which the system rests, and

the bushing and plurality of collets arranged to inhibit sag of a hypotube to be less than 3% of the height;

a spiral hypotube collector configured to wind a hypotube after laser cutting; and

a cooling subsystem configured to flow gas at a temperature between 20°

C. and 25°

C. into the spiral hypotube collector,

the cooling subsystem comprising a valve configured to regulate gas flow from the cooling system into the spiral hypotube collector.

2. The system of claim 1, wherein the cooling subsystem is further configured to flow gas into a laser nozzle and toward a hypotube being cut by a focused laser beam, and wherein the cooling subsystem further comprises a second valve configured to regulate gas flow from the cooling subsystem into the laser nozzle.

3. The system of claim 1, wherein the gas comprises ambient air or inert gas.

4. The system of claim 1, wherein the system is configured to inhibit forming fissures in the hypotube.

5. A system for modifying a hypotube, the system comprising:

a hypotube holding subsystem configured to inhibit sag of a held hypotube;

a hypotube collection subsystem configured to collect a hypotube after laser cutting; and

a cooling subsystem comprising a valve configured to direct gas into the hypotube collection subsystem, and a second valve configured to direct gas into a laser nozzle and towards a hypotube being cut by a focused laser beam.

6. The system of claim 5, wherein the cooling subsystem comprises an inert gas source.

7. The system of claim 5, wherein the gas comprises ambient air.

8. The system of claim 5, wherein the gas is at a temperature between 20°

C. and 25°

C.

9. The system of claim 5, wherein the hypotube collection subsystem comprises a spiral hypotube collector configured to wind a hypotube after laser cutting.

10. The system of claim 5, wherein the hypotube holding subsystem comprises:

a bushing,

a plurality of collets, and

a hypotube clamp configured to longitudinally advance a hypotube.

11. The system of claim 10, wherein the bushing, the plurality of collets, and the hypotube clamp are aligned at a height above a floor on which the system rests, and wherein the bushing and plurality of collets are arranged to inhibit sag of a hypotube to be less than 3% of the height.

12. The system of claim 10, wherein the cooling subsystem is configured to reduce a heat affected zone.

13. The system of claim 10, wherein the system is configured to inhibit forming fissures in the hypotube.

14. A system for modifying a hypotube, the system comprising:

a cooling subsystem comprising;

a first valve configured to direct gas into a spiral hypotube collector configured to wind a hypotube after laser cutting, and

a second valve configured to direct gas into a laser nozzle and towards a hypotube being cut by a focused laser beam.

15. The system of claim 14, wherein the cooling subsystem comprises an inert gas source.

16. The system of claim 14, wherein the gas comprises air at a temperature between 20°

C. and 25°

C.

17. The system of claim 14, further comprising the spiral hypotube collector.

18. The system of claim 14, wherein the cooling subsystem is configured to reduce a heat affected zone.

19. The system of claim 14, wherein the system is configured to inhibit forming fissures in the hypotube.