Methods And Devices For Creating Electrical Block At Specific Targeted Sites In Cardiac Tissue

• US 20100174304A1
• Filed: 03/17/2010
• Published: 07/08/2010
• Est. Priority Date: 05/01/2003
• Status: Abandoned Application

• Current Assignee: Richard Cornelius, Robert C. Beesley, Robert Seth Schwartz
• Original Assignee: Richard Cornelius, Robert C. Beesley, Robert Seth Schwartz
• Inventors: Swanson, William, Cornelius, Richard, Schwartz, Robert S.
• Application Number:
  US12/726,304
• Publication Number:
  US 20100174304A1
• Time in Patent Office: Days
• US Class Current: 606/167
• CPC Class Codes: A61B 17/205 Vaccinating by means of needles or other puncturing devices
• 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 2017/00247 Making holes in the wall of the heart, e.g. laser Myocardial revascularization
• CPC Class Codes: A61B 2017/00256 Creating an electrical block
• CPC Class Codes: A61B 2017/320004 abrasive
• CPC Class Codes: A61B 2018/00392 Transmyocardial revascularisation

Abstract

The present invention provides a mechanical injury device having cutting elements for injuring tissue and thereby creating electrical block that can prevent atrial fibrillation. These cutting elements may preferably be removable, breakaway, or simply integral to the injury device and may be delivered, for example, by catheter or hand tool.

Claims

1. A device for causing tissue injury comprising:

a tube having a fixation element disposed at a distal end of said tube;

a deployment arm connected to said tube;

a plurality of cutting elements disposable within said deployment arm.

a mechanism for ejecting at least one cutting element to a target tissue site when said fixation element has retained said tube in a desired position.

2. A device as set forth in claim 1, wherein said fixation element is an expandable mesh.

3. A device as set forth in claim 1, wherein said device is a catheter assembly.

4. A device as set forth in claim 1, wherein said cutting element includes a coating to enhance tissue inflammation.

5. A device as set forth in claim 1, wherein said cutting element includes a coating to enhance scarring.

6. A device as set forth in claim 4, wherein said coating is selected from a group comprising glutaraldehyde, tetracycline, actinomicin, and polidocanol.