Device and method for treating ischemic heart disease

• US 20050267567A1
• Filed: 07/21/2005
• Published: 12/01/2005
• Est. Priority Date: 03/27/2000
• Status: Abandoned Application

• Current Assignee: Shockwave Medical, Incorporated
• Original Assignee: Neovasc Medical Ltd. (Neovasc Incorporated)
• Inventors: Shalev, Ilan
• Application Number:
  US11/186,745
• Publication Number:
  US 20050267567A1
• Time in Patent Office: Days
• US Class Current: 623/1.310
• CPC Class Codes: A61F 2/01 Filters implantable into blood vessels
• CPC Class Codes: A61F 2/2475 Venous valves
• CPC Class Codes: A61F 2/88 the wire-like elements formed as helical or spiral coils forming a net-like or mesh-like structure A61F2/90
• 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 2002/018 made from tubes or sheets of material, e.g. by etching or laser-cutting
• CPC Class Codes: A61F 2002/068 Modifying the blood flow model, e.g. by diffuser or deflector
• 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 2002/9155 Adjacent bands being connected to each other
• CPC Class Codes: A61F 2002/91558 connected peak to peak
• CPC Class Codes: A61F 2220/0016 with sharp anchoring protrusions, e.g. barbs, pins, spikes
• CPC Class Codes: A61F 2220/0075 sutured, ligatured or stitched, retained or tied with a rope, string, thread, wire or cable
• CPC Class Codes: A61F 2230/0006 circular
• CPC Class Codes: A61F 2230/005 Rosette-shaped, e.g. star-shaped
• CPC Class Codes: A61F 2230/0069 cylindrical
• CPC Class Codes: A61F 2230/0078 hyperboloidal
• CPC Class Codes: A61F 2230/008 paraboloidal
• CPC Class Codes: A61F 2250/0039 differing in diameter

Abstract

A narrowing intraluminal stent is disclosed and comprises a hollow body and a flow passage therethrough, the hollow body designed for intraluminal placement and having at least one portion of an inner cross sectional dimension smaller than the cross sectional dimension of the lumen, so as to artificially narrow a passage through the body lumen. A method of artificially narrowing a passage through a body lumen using the stent is also disclosed.

Claims

1. A method of affecting blood flow in coronary vessels, comprising:

(a) transvascularly guiding a catheter to a coronary sinus; and

(b) narrowing a cross-sectional dimension of a flow lumen of said coronary sinus using said catheter.

2. A method according to claim 1, wherein narrowing comprises deploying a flow reducer in said coronary sinus.

3. A method according to claim 2, wherein deploying comprises deploying using a balloon.

4. A method according to claim 2, wherein deploying comprises deploying a self-expanding reducer.

5. A method according to claim 1, wherein narrowing comprises narrowing in a manner that increases back pressure.

6. A method according to claim 1, wherein narrowing comprises narrowing in a manner that initiates angiogenesis.

7. A method according to claim 1, wherein narrowing comprises narrowing in a manner that accelerates angiogenesis.

8. A method according to claim 1, wherein narrowing comprises narrowing in a manner that prevents ischemic heart disease.

9. A method according to claim 1, wherein narrowing comprises permanently narrowing.

10. A method according to claim 1, comprising:

determining that a patient has ischemic heart disease; and

performing (a)-(b).

11. A method according to claim 1, comprising reducing said a diameter of said cross-section by a factor of at least 2.6.

12. A method of improving perfusion of a tissue, comprising:

(a) identifying a tissue having a deficient degree of blood flow there through; and

(b) transvascularly narrowing a cross-sectional diameter of a vessel carrying blood from said tissue.

13. A method according to claim 12, wherein said vessel comprises a coronary sinus.

14. A method according to claim 12, wherein said tissue comprises cardiac tissue.

15. A method according to claim 12, wherein said narrowing is sufficient to cause angiogenesis in said tissue.

16. A method according to claim 12, wherein narrowing comprises implanting a flow reducer in said vessel.