Urological device
A urological device comprises a urological valve having a plurality of valve leaflets with a region of co-aption between the valve leaflets. The valve has a normally closed configuration in which the valve leaflets are engaged at the region of co-aption and an open configuration in which the leaflets are separated at the co-aption region for fluid flow through the valve. The valve is automatically movable from the closed configuration to the open configuration in response to applied urological pressure.
1. A urological device comprising
a urological valve, the valve including a plurality of valve leaflets, the valve having internally located, stiffening reinforcement members, the stiffening reinforcement members defining a fulcrum or hinge region about which the valve leaflets are movable from a normally closed configuration to an open configuration, the stiffening reinforcement members extending vertically,
the valve having a region of co-aption between the valve leaflets, the valve having the normally closed configuration in which the valve leaflets are engaged at the region of co-aption and the open configuration in which the leaflets are separated at the co-aption region for fluid flow through the valve, the valve being configured to evert automatically on movement between the closed configuration and the open configuration in response to applied urological pressure.
2. The urological device as claimed in claim 1 , wherein the valve is adapted to open in response to a preset pressure applied over a preset time.
3. The urological device as claimed in claim 2 , wherein the valve is adapted to open in response to a pressure of at least 750 mm H 2 O applied for at least 5 seconds.
4. The urological device as claimed in claim 1 , wherein the valve is adapted to remain closed in response to a spike pressure applied for a short time as would be generated by a user coughing.
5. The urological device as claimed in claim 4 , wherein the spike pressure is 900 mm H 2 O applied for a period of less than 0.5 seconds.
6. The urological device as claimed in claim 1 , wherein the valve remains open as fluid flows therethrough without a requirement for a user to apply urological pressure.
7. The urological device as claimed in claim 6 , wherein the valve returns to the closed configuration when flow through the valve has substantially stopped.
8. The urological device as claimed in claim 1 , wherein the valve reverts on return from the open to the closed configuration.
9. The urological device as claimed in claim 1 , wherein the valve includes at least three valve leaflets.
10. The urological device as claimed in claim 1 , wherein the valve includes a main body having a region which defines a hinge about which a portion of the valve main body is movable between the closed and open configurations.
11. A urological device comprising
a urological valve, the valve including a plurality of valve leaflets, the valve having internally located, stiffening reinforcement members, the stiffening reinforcement members defining a fulcrum or hinge region about which the valve leaflets are moveable from a normally closed configuration to an open configuration, the stiffening reinforcement members being spaced about an internal circumference of the valve,
the valve having a region of co-aption between the valve leaflets, the valve having the normally closed configuration in which the valve leaflets are engaged at the region of co-aption and the open configuration in which the leaflets are separated at the co-aption region for fluid flow through the valve, the valve being configured to evert automatically on movement between the closed configuration and the open configuration in response to applied urological pressure.
12. The urological device as claimed in claim 11 , wherein the valve is adapted to open in response to a preset pressure applied over a preset time.
13. The urological device as claimed in claim 12 , wherein the valve is adapted to open in response to a pressure of at least 750 mm H 2 O applied for at least 5 seconds.
14. The urological device as claimed in claim 11 , wherein the valve is adapted to remain closed in response to a spike pressure applied for a short time as would be generated by a user coughing.
15. The urological device as claimed in claim 14 , wherein the spike pressure is 900 mm H 2 O applied for a period of less than 0.5 seconds.
16. The urological device as claimed in claim 11 , wherein the valve remains open as fluid flows therethrough without a requirement for a user to apply urological pressure.
17. The urological device as claimed in claim 16 , wherein the valve returns to the closed configuration when flow through the valve has substantially stopped.
18. The urological device as claimed in claim 11 , wherein the valve reverts on return from the open to the closed configuration.
19. The urological device as claimed in claim 11 , wherein the valve includes at least three valve leaflets.
20. The urological device as claimed in claim 11 , wherein the valve includes a main body having a region which defines a hinge about which a portion of the valve main body is movable between the closed and open configurations.