Multi-size ureteral stent

• US 4,643,716 A
• Filed: 05/15/1986
• Issued: 02/17/1987
• Est. Priority Date: 09/26/1984
• Status: Expired due to Term

• Current Assignee: The Kendall Company (Colgate-Palmolive Company)
• Original Assignee: The Kendall Company (Colgate-Palmolive Company)
• Inventors: Drach, George W.
• Primary Examiner(s): Yasko, John D.
• Application Number:
  US06/863,668
• Time in Patent Office: 278 Days
• Field of Search: 604/8, 604/9, 604/164, 604/170, 604/280, 604/281, 128/127, 128/130
• US Class Current: 604/8
• CPC Class Codes: A61F 2002/048 Ureters
• CPC Class Codes: A61M 27/008 pre-shaped, for use in the urethral or ureteral tract

Abstract

A ureteral stent comprising, a catheter having a hollow elongated generally straight body portion, a retaining portion for retaining the catheter in the kidney of a patient adjacent a distal end of the body portion, and a proximal end portion extending proximally from the body portion, with the end portion being formed in a serpentine configuration which may be cut to length depending upon the length of the patient'"'"'s ureter.

Claims

1. A ureteral stent, comprising:

a catheter having a hollow elongated generally straight body portion, means for retaining the catheter in the kidney of a patient adjacent a distal end of the body portion, and a proximal end portion extending proximally from the body portion, said end portion being formed in a serpentine configuration disposed in a plane which may be cut to length depending upon the length of the patient'"'"'s ureter, and a distal part of the remaining end portion may be straightened for alignment with the body portion and placement in the ureter while a part of the serpentine configuration proximal the straightened portion is maintained in the stent for placement in the bladder.

2. The stent of claim 1 wherein the retaining means comprises a pig tail.

3. The stent of claim 1 including a plurality of apertures disposed along the length of the catheter and extending through a wall of the catheter such that they communicate between a lumen in the catheter and the outside of the catheter.