Balloon catheter with non-deployable stent

• US 10,086,178 B2
• Filed: 02/07/2011
• Issued: 10/02/2018
• Est. Priority Date: 11/09/2001
• Status: Expired due to Term

• Current Assignee: Spectranetics Corporation (Koninklijke Philips N.V.)
• Original Assignee: Angioscore Incorporated (Koninklijke Philips N.V.)
• Inventors: Farnan, Robert C., Hoyns, Dirk Voland, Ram, Anand
• Primary Examiner(s): Stransky, Katrina
• Assistant Examiner(s): Colello, Erin
• Application Number:
  US13/022,489
• Publication Number:
  US 20110125247A1
• Time in Patent Office: 2,794 Days
• Field of Search: 623 117, 606194, 606191, 606192, 606159, 604103, 60410305, 60410307, 60410308, 60410309, 604104, 604509, 604 22
• CPC Class Codes: A61B 17/320725 with radially expandable cutting or abrading elements A61B17/32075 takes precedence
• CPC Class Codes: A61B 2017/00858 high friction, non-slip on handles A61B2017/00429
• CPC Class Codes: A61B 2017/22061 for spreading elements apart
• CPC Class Codes: A61F 2/91 made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
• CPC Class Codes: A61F 2/915 with bands having a meander structure, adjacent bands being connected to each other
• CPC Class Codes: A61F 2/958 Inflatable balloons for placing stents or stent-grafts
• CPC Class Codes: A61F 2002/91525 within the whole structure different bands showing different meander characteristics, e.g. frequency or amplitude
• CPC Class Codes: A61F 2002/91533 characterised by the phase between adjacent bands
• CPC Class Codes: A61F 2002/91558 connected peak to peak
• CPC Class Codes: A61F 2210/0076 multilayered, e.g. laminated structures
• CPC Class Codes: A61F 2230/005 Rosette-shaped, e.g. star-shaped
• CPC Class Codes: A61F 2230/0058 X-shaped
• CPC Class Codes: A61F 2230/0067 conical
• CPC Class Codes: A61M 2025/105 having a balloon suitable for drug delivery, e.g. by using holes for delivery, drug coating or membranes
• CPC Class Codes: A61M 2025/1081 having sheaths or the like for covering the balloon but not forming a permanent part of the balloon, e.g. retractable, dissolvable or tearable sheaths
• CPC Class Codes: A61M 2025/1086 having a special balloon surface topography, e.g. pores, protuberances, spikes or grooves
• CPC Class Codes: A61M 2025/1088 having special surface characteristics depending on material properties or added substances, e.g. for reducing friction
• CPC Class Codes: A61M 2025/109 having balloons for removing solid matters, e.g. by grasping or scraping plaque, thrombus or other matters that obstruct the flow
• 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 25/1027 Making of balloon catheters
• CPC Class Codes: A61M 25/104 : used for angioplasty

Abstract

An angioplasty balloon including a non-deployable stent to prevent or reduce the potential for slippage of the inflated balloon with respect to the vessel wall being treated. The balloon includes a non-deployable stent that is adapted to be secured to the balloon or angioplasty balloon catheter. The stent has a proximal end, a distal end, and at least one extension section, at least one set of serpentine rings and at least one set of elongation links that allow expansion of the strut to accommodate the inflation of the balloon. The stent is made of a material so that the stent collapses upon deflation of the balloon.

Claims

1. An angioplasty balloon catheter comprising:

a catheter having a shaft;

an inflatable balloon; and

a non-deployable stent coupled to said catheter and disposed over said inflatable balloon, said non-deployable stent comprising a hypo tube having a proximal end and a distal end, said proximal and distal ends of said hypo tube being coupled to the shaft of said catheter distal to a proximal end of said catheter and proximal to a distal end of the catheter respectively, said non-deployable stent further comprising a plurality of longitudinal struts wherein, prior to expansion, each longitudinal strut has one or more bends configured to allow said longitudinal struts to longitudinally expand upon inflation of the inflatable balloon.

2. An angioplasty catheter as in claim 1, wherein said one or more bends is a sinusoidal bend.

3. An angioplasty catheter as in claim 1, wherein said non-deployable stent comprises a nickel titanium alloy.

4. An angioplasty catheter as in claim 1, wherein said plurality of longitudinal struts comprise a cross sectional shape, wherein said cross sectional shape is at least one of a round, triangular and rectangular shape.

5. An angioplasty catheter as in claim 1, wherein said one or more bends is disposed adjacent said proximal end of said non-deployable stent.

6. An angioplasty catheter as in claim 5, wherein said one or more bends is a sinusoidal bend.

7. An angioplasty catheter as in claim 6, wherein said one or more bends is disposed adjacent said distal end of said non-deployable stent.

8. An angioplasty catheter as in claim 1, wherein said one or more bends is disposed adjacent said distal end of said non-deployable stent.

9. An angioplasty catheter as in claim 8, wherein said one or more bends is a sinusoidal bend.