Indwelling urinary catheter
First Claim
Patent Images
1. A urinary catheter comprising:
- a core lumen insertable into a urethra, the core lumen defining an inlet end having a single inlet and an outlet end opposite the inlet end;
a bladder retention mechanism coupled to the inlet end of the core lumen for hingedly moving between a release position and a retention position;
a stent coaxially mounted on the core lumen adjacent the bladder retention mechanism, the stent defining a stent inlet in fluid communication with the single inlet of the core lumen and configured to transport a fluid from a bladder,and a stent outlet configured to discharge the fluid around an external surface of the core lumen and into contact with the urethra;
wherein the core lumen defines a first outermost diameter, wherein the stent defines a second outermost diameter, and wherein the second outermost diameter is greater than the first outermost diameter;
wherein the stent tapers at its bottom from the second outermost diameter towards the first outermost diameter.
3 Assignments
0 Petitions
Accused Products
Abstract
A urinary catheter generally includes a core lumen, a bladder retention mechanism, and a stent. The core lumen is insertable into a urethra, and defines an inlet end and an outlet end opposite the inlet end. The bladder retention mechanism is coupled to the inlet end of the core lumen for hingedly moving between a release position and a retention position. The stent is coaxially mounted on the core lumen adjacent the bladder retention mechanism, and defines a stent inlet configured to receive a fluid from the bladder, and a stent outlet configured to discharge the fluid around the core lumen and into the urethra.
-
Citations
23 Claims
-
1. A urinary catheter comprising:
-
a core lumen insertable into a urethra, the core lumen defining an inlet end having a single inlet and an outlet end opposite the inlet end; a bladder retention mechanism coupled to the inlet end of the core lumen for hingedly moving between a release position and a retention position; a stent coaxially mounted on the core lumen adjacent the bladder retention mechanism, the stent defining a stent inlet in fluid communication with the single inlet of the core lumen and configured to transport a fluid from a bladder, and a stent outlet configured to discharge the fluid around an external surface of the core lumen and into contact with the urethra; wherein the core lumen defines a first outermost diameter, wherein the stent defines a second outermost diameter, and wherein the second outermost diameter is greater than the first outermost diameter; wherein the stent tapers at its bottom from the second outermost diameter towards the first outermost diameter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A method for catheterization, the method comprising:
-
advancing a core lumen through a urethra of a patient into a bladder, wherein the core lumen defines an inlet end having a single inlet and an outlet end opposite the inlet end, wherein a bladder retention mechanism is coupled to the inlet end in a release position, wherein a stent is coaxially mounted on the core lumen adjacent the bladder retention mechanism, and wherein the stent defines a stent inlet in fluid communication with the single inlet of the core lumen and configured to receive a fluid from the bladder, and a stent outlet configured to discharge the fluid around an external surface of the core lumen and into contact with the urethra; and moving the core lumen in a direction from the inlet end toward the outlet end, whereupon the bladder retention mechanism hingedly moves from the release position to a retention position; wherein the core lumen defines a first outermost diameter, wherein the stent defines a second outermost diameter, and wherein the second outermost diameter is greater than the first outermost diameter; wherein the stent tapers at its bottom from the second outermost diameter towards the first outermost diameter. - View Dependent Claims (15, 16, 17, 18, 19, 20)
-
-
21. A urinary catheter comprising:
-
a core lumen insertable into a urethra, the core lumen defining an inlet end having a single inlet and an outlet end opposite the inlet end, the inlet end of the core lumen being attached to a plug; a bladder retention mechanism for hingedly moving between a release position and a retention position, the bladder retention mechanism having a socket formed therein into which the plug is fitted; and a stent coaxially mounted on the core lumen adjacent the bladder retention mechanism, the stent defining a stent inlet in fluid communication with the single inlet of the core lumen and configured to receive a fluid from a bladder, and a stent outlet configured to discharge the fluid around an external surface of the core lumen and into contact with the urethra, wherein a pulling force applied to the core lumen removes the plug from the socket such that the bladder retention mechanism is in the release position; wherein the core lumen defines a first outermost diameter, wherein the stent defines a second outermost diameter, and wherein the second outermost diameter is greater than the first outermost diameter; wherein the stent tapers at its bottom from the second outermost diameter towards the first outermost diameter. - View Dependent Claims (22, 23)
-
Specification