Method for causing a stricture of a body passageway

• US 6,156,032 A
• Filed: 09/30/1998
• Issued: 12/05/2000
• Est. Priority Date: 09/30/1998
• Status: Expired due to Term

• Current Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Original Assignee: Scimed Life Systems Incorporated (Boston Scientific Corporation)
• Inventors: Lennox, Charles D.
• Primary Examiner(s): COHEN, LEE S
• Application Number:
  US09/164,002
• Time in Patent Office: 797 Days
• Field of Search: 606/41, 606/45, 606/49, 606/14, 606/15, 606/21, 606/27, 607/99, 607/105, 607/113, 604/114
• US Class Current: 606/41
• CPC Class Codes: A61B 18/1492 having a flexible, catheter-like structure, e.g. for heart ablation A61B18/1477 takes precedence
• CPC Class Codes: A61B 2018/00029 open
• CPC Class Codes: A61B 2018/00101 low, i.e. thermally insulating
• CPC Class Codes: A61B 2018/00505 Urinary tract
• CPC Class Codes: A61B 2018/00553 Sphincter
• CPC Class Codes: A61B 2018/00678 upper
• CPC Class Codes: A61B 2018/00702 Power or energy
• CPC Class Codes: A61B 2018/00791 Temperature
• CPC Class Codes: A61B 2018/00815 measured by a thermistor

Abstract

This invention provides for an apparatus and method to cause a stricture in a body passageway. For example, urinary incontinence and vesicoureteral reflux can be treated by inserting an energy-delivering probe into the body passageway of the urinary tract and applying energy to an arcuate segment of the wall of the body passageway to cause injury to the wall, hyperplasia of the tissue surrounding the wall, and stricture of the body passageway. Other applications for the apparatus and method of the present invention includes treatment of gastro-esophageal reflux and fecal incontinence.

Claims

1. A method for causing a stricture of a body passageway, comprising the steps of

inserting an energy-delivering probe into a body passageway, the body passageway defined by an internal tubular wall and adjacent tissue surrounding the wall;

and

applying energy along a radial segment of the wall using said probe, thereby causing injury to the wall, hyperplasia of tissue adjacent the wall, and stricture of the body passageway.

2. The method of claim 1, wherein the body passageway is the urethra.

3. The method of claim 2, wherein the energy is applied proximal to the urethral sphincter.

4. The method of claim 1, wherein the body passageway is the ureter.

5. The method of claim 4, wherein the energy is applied at the vesicoureteric junction.

6. The method of claim 1, wherein the body passageway is the bile duct.

7. The method of claim 1, wherein the body passageway is a vein or an artery.

8. The method of claim 1, wherein the application of energy causes a burn.

9. The method of claim 8, wherein the energy is RF radiation.

10. The method of claim 1, wherein the energy is applied through an energy emitter near a distal end of the probe.

11. The method of claim 10, further comprising the step of regulating the temperature of the energy emitter.

12. The method of claim 1 further comprising the step of

applying energy along a segment of the wall causing a subsequent injury to the wall, hyperplasia of tissue surrounding the wall and tighter stricture of the body passageway.

13. The method of claim 12 wherein a subsequent injury is caused at a location overlapping the prior injury.

14. The method of claim 1, wherein the body passageway is the rectum.

15. The method of claim 1, wherein the body passageway is the esophagus.

16. A method for treating urinary incontinence by causing a stricture in a urethra, said method comprising the steps of

inserting an energy-delivering probe into the urethra, the urethra having a tubular internal wall and adjacent tissue surrounding the wall, said energy-delivering probe having a temperature regulated RF electrode near a distal end of said probe;

and

applying energy along a radial segment of the wall through said electrode, thereby causing injury to the wall, hyperplasia of tissue adjacent the wall, and stricture of the urethra.

17. The method of claim 16, wherein the energy is applied proximal to the urethral sphincter.

18. A method for treating vesicoureteral reflux by causing a stricture in a ureter, said method comprising the steps of

inserting an energy-delivering probe into the ureter, the ureter having a tubular internal wall and adjacent tissue surrounding the wall, said energy-delivering probe having a temperature regulated RF electrode near a distal end of said probe;

and

applying energy along a radial segment of the wall through said electrode, thereby causing injury to the wall, hyperplasia of tissue adjacent the wall, and stricture of the urethra.

19. The method of claim 18, wherein the energy is applied at the vesicoureteric junction.