Easily removable ureteral stent
First Claim
Patent Images
1. A ureteral stent for maintaining drainage between the kidney and bladder comprising;
- an elongated flexible tubular member having proximal and distal ends connected by a body portion having an axis including a central lumen and a plurality of holes to provide fluid communication between the proximal and distal ends, the proximal end for placement in the bladder, the distal end including retention means for retaining the distal end in the kidney, the distal end retention means comprising the distal end being set in the shape of helical curl, the helical curl having a flex portion which is viewed as the second turn of a loop of the helical curl in the same plane of the body portion when the angle measured between the body portion and the flex portion of the helical curl is 0°
-10°
, said flex portion of the helical curl being positioned at an angle to the body portion being measured between 15°
to 175°
to allow for safe and facile removal of the distal end from the kidney.
9 Assignments
0 Petitions
Accused Products
Abstract
A ureteral stent includes an elongated tubular member having proximal and distal ends. The proximal end is configured for placement in the bladder and the distal end has a shape of a helical curl including a flex portion which is the second turn of the loop of the helical curl. The flex portion of the loop of the helical curl is positioned at an angle to the body portion between 15-175 degrees to allow for safe removal of the distal end from the kidney.
150 Citations
13 Claims
-
1. A ureteral stent for maintaining drainage between the kidney and bladder comprising;
an elongated flexible tubular member having proximal and distal ends connected by a body portion having an axis including a central lumen and a plurality of holes to provide fluid communication between the proximal and distal ends, the proximal end for placement in the bladder, the distal end including retention means for retaining the distal end in the kidney, the distal end retention means comprising the distal end being set in the shape of helical curl, the helical curl having a flex portion which is viewed as the second turn of a loop of the helical curl in the same plane of the body portion when the angle measured between the body portion and the flex portion of the helical curl is 0°
-10°
, said flex portion of the helical curl being positioned at an angle to the body portion being measured between 15°
to 175°
to allow for safe and facile removal of the distal end from the kidney.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
Specification
-
- Resources
Litigation Campaign Assessment
Thank you for your request. You will receive a custom alert email when the Litigation Campaign Assessment is available.
×
-
Current AssigneeGyrus ACMI, Inc. (Olympus Corporation)
-
Original AssigneeCircon Corp. (Olympus Corporation)
-
InventorsAli, Mohammed
-
Primary Examiner(s)ISABELLA, DAVID J
-
Application NumberUS08/813,598Time in Patent Office529 DaysField of Search604/8, 604/9, 604/10, 604/281, 604/54, 604/280, 604/283, 604/284US Class Current604/8CPC Class CodesA61F 2/848 having means for fixation t...A61F 2/88 the wire-like elements form...A61M 27/008 pre-shaped, for use in the ...
