Urological device
First Claim
1. A urological device comprising:
- a urological valve for location in a bladder of a patient; and
a valve support stem for location in a urethra of a patient, the urological valve at least partially projecting beyond the valve support stem in a direction towards the bladder when the device is positioned in the bladder and urethra,the valve having a normally closed configuration to prevent flow from the bladder and an open configuration for fluid flow through the valve, the valve being automatically movable from the closed configuration to the open configuration in response to a pre-set hydrodynamic pressure of at least 750 mm H2O applied for a pre-set time of at least 5 seconds, anda bladder retainer for locating the valve in the bladder, the bladder retainer including a flare extending radially outwardly of the support stem.
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Accused Products
Abstract
A urological device comprises a urological valve for location in the bladder of a patient and a valve support stem for location in the urethra of a patient. The valve has a normally closed configuration to prevent flow from the bladder and an open configuration for fluid flow through the valve. The valve is automatically movable from the closed configuration to the open configuration in response to a pre-set hydrodynamic pressure applied for a pre-set time. In one case the valve has a plurality of valve leaflets with a region of co-aption between the valve leaflets. In the normally closed configuration the valve leaflets are engaged at the region of co-aption and in the open configuration the leaflets are separated at the co-aption region for fluid flow through the valve.
101 Citations
54 Claims
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1. A urological device comprising:
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a urological valve for location in a bladder of a patient; and a valve support stem for location in a urethra of a patient, the urological valve at least partially projecting beyond the valve support stem in a direction towards the bladder when the device is positioned in the bladder and urethra, the valve having a normally closed configuration to prevent flow from the bladder and an open configuration for fluid flow through the valve, the valve being automatically movable from the closed configuration to the open configuration in response to a pre-set hydrodynamic pressure of at least 750 mm H2O applied for a pre-set time of at least 5 seconds, and a bladder retainer for locating the valve in the bladder, the bladder retainer including a flare extending radially outwardly of the support stem. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A urological device comprising
a urological valve for location in a bladder of a patient, a valve support stem for location in a urethra of a patient, the urological valve at least partially projecting beyond the valve support stem in a direction towards the bladder when the device is positioned in the bladder and urethra, the urological valve having a normally closed configuration to prevent flow from the bladder and an open configuration for fluid flow through the urological valve, the urological valve being automatically movable from the closed configuration to the open configuration in response to a pre-set hydrodynamic pressure applied for a pre-set time, a bladder retainer extending circumferentially about the valve support stem for locating the urological valve in the bladder, and a stiffening structure for the bladder retainer, the stiffening structure being a mesh of shape memory material.
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32. A urological device comprising:
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a urological valve for location in a bladder of a patient; and a valve support stem for location in a urethra of a patient, the urological valve at least partially projecting beyond the valve support stem in a direction towards the bladder when the device is positioned in the bladder and urethra, the valve having a normally closed configuration to prevent flow from the bladder and an open configuration for fluid flow through the valve, the valve being automatically movable from the closed configuration to the open configuration in response to a pre-set hydrodynamic pressure of at least 750 mm H2O applied for a pre-set time of at least 5 seconds, and a bladder retainer for locating the valve in the bladder, the bladder retainer including a stiffening structure. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54)
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Specification