Balloon catheter with cutting edge

• US 5,196,024 A
• Filed: 07/03/1990
• Issued: 03/23/1993
• Est. Priority Date: 07/03/1990
• Status: Expired due to Term

• Current Assignee: Cedars-Sinai Medical Center (Cedars Sinai Health System)
• Original Assignee: Cedars-Sinai Medical Center (Cedars Sinai Health System)
• Inventors: Barath, Peter I.
• Primary Examiner(s): Cohen, Lee S.
• Assistant Examiner(s): ZELE, KRISTA MICHELLE
• Application Number:
  US07/547,957
• Time in Patent Office: 994 Days
• Field of Search: 604/96, 604/98, 606/159, 606/167, 606/170, 606/192, 606/191, 606/194
• US Class Current: 606/159
• CPC Class Codes: A61B 17/320725 with radially expandable cutting or abrading elements A61B17/32075 takes precedence
• CPC Class Codes: A61B 2017/22061 for spreading elements apart
• CPC Class Codes: A61M 2025/1086 having a special balloon surface topography, e.g. pores, protuberances, spikes or grooves
• CPC Class Codes: A61M 25/104 used for angioplasty

Abstract

A device and method for dilation or recanalization of a diseased vessel by use of a balloon catheter with cutting edges to make longitudinal cuts in the vessel wall is described. The diameter of the vessel increased without the subsequent secondary cellular proliferation or restenosis in the vessel caused by conventional angioplasty methods.

Claims

1. A device for dilating or recanalizing a vessel comprising:

an inflatable balloon catheter with cuting edges situated parallel with the longitudinal axis of said balloon;

said cutting edges covered by folds of the balloon while in the deflated state to prevent injury of said vessel during delivery; and

said cuttign edges being further defined as positioned on plates mounted onto the balloon surface.

2. A device according to claim 1 wherein said cutting edges are formed of metal or plastic.

3. A device accoridng to claim 1 wherein said cutting edges are metallic edges and said plates are metallic plates.

4. A device for dilating or recanalizing a vessel comprising:

an inflatable balloon catheter with articualted cutting edges situated parallel with the longitudinal axis of the balloon;

said cutting edges being further defined as positioned on plates mounted onto the balloon surface.

5. A device for dilating or recanalizing a vessel comprising:

an inflatable balloon catheter with articulated cutting edges situated parallel with the longitudinal axis of the balloon;

said cuting edges covered by folds of the balloon while in the deflated state to prevent injury of said vessel during delivery; and

said cutting edges being further defined as positioned on plates mounted onto the balloon surface.