Wire perfusion catheter

• US 6,015,402 A
• Filed: 06/04/1998
• Issued: 01/18/2000
• Est. Priority Date: 03/07/1997
• Status: Expired due to Term

• Current Assignee: Harvinder Sahota
• Original Assignee: Harvinder Sahota
• Inventors: Sahota, Harvinder
• Primary Examiner(s): YASKO JR, JOHN D
• Application Number:
  US09/090,504
• Time in Patent Office: 593 Days
• Field of Search: 604/523, 604/524, 604/525, 604/526, 604/527, 604/532, 604/536, 604/96, 604/500, 623/1, 623/12, 623/66
• US Class Current: 604/523
• CPC Class Codes: A61F 2/958 Inflatable balloons for placing stents or stent-grafts
• CPC Class Codes: A61F 2002/30143 hexagonal
• CPC Class Codes: A61F 2002/30677 Means for introducing or releasing pharmaceutical products, e.g. antibiotics, into the body
• CPC Class Codes: A61F 2002/821 Ostial stents
• CPC Class Codes: A61F 2230/0017 Angular shapes
• CPC Class Codes: A61F 2250/0067 Means for introducing or releasing pharmaceutical products into the body
• CPC Class Codes: A61M 2025/0177 having external means for receiving guide wires, wires or stiffening members, e.g. loops, clamps or lateral tubes
• CPC Class Codes: A61M 2025/09183 having tools at the distal tip
• CPC Class Codes: A61M 2025/1052 for temporarily occluding a vessel for isolating a sector
• CPC Class Codes: A61M 2025/1063 having only one lumen used for guide wire and inflation, e.g. to minimise the diameter
• CPC Class Codes: A61M 2025/1095 with perfusion means for enabling blood circulation while the balloon is in an inflated state or in a deflated state, e.g. permanent by-pass within catheter shaft
• CPC Class Codes: A61M 25/1002 characterised by balloon shape A61M25/1006, A61M25/1009 take precedence
• CPC Class Codes: A61M 25/1011 Multiple balloon catheters
• CPC Class Codes: A61M 25/104 used for angioplasty

Abstract

A low profile wire perfusion catheter is disclosed for use in percutaneous transluminal coronary angioplasty. The catheter includes a wire configured to be inserted into a blood vessel. The wire is hollow and defines an axial lumen therein. An inflation balloon is attached directly to the wire and is configured to expand radially outward in response to inflation thereof. Inflow and outflow perfusion ports extend through the wire and communicate with the lumen to allow perfusion of blood across the balloon when the balloon is inflated within a blood vessel. Because the balloon is attached directly to the wire, the catheter has an advantageously low cross-sectional area.

Claims

1. A stent for placement within a body lumen comprising:

a mesh material, said mesh material adapted to form a tube-like stent having a hexagonal cross-section.

2. The stent of claim 1, wherein said stent comprises an ostial stent.

3. The stent of claim 2, wherein said stent is coated with heparin.

4. The stent of claim 1, wherein said stent is expandable and adapted for positioning on an inflation balloon attached to a catheter.

5. The stent of claim 4, wherein said stent is an ostial stent coated with heparin.