Urine collection bag with integral anti-reflux valve
First Claim
1. A urine collection bag comprising:
- at least one sheet of flexible material defining a fluid reservoir; and
an anti-reflux valve including a valve housing defining a fluid receptacle positioned externally of the fluid reservoir, the valve housing including a peripheral rim which is secured to the at least one sheet of flexible material adjacent an inlet opening formed in the at least one sheet of flexible material;
wherein the inlet opening in the at least one sheet of material forms a flap in the at least one sheet of flexible material, the flap being positioned to abut the peripheral rim of the housing and substantially seal the inlet opening when fluid flows from the fluid reservoir toward the fluid receptacle, the peripheral rim including at least one protrusion positioned to engage the flap to prevent the flap from sealing against the peripheral rim.
1 Assignment
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Accused Products
Abstract
A urine collection bag formed of at least one flexible sheet of material defining a fluid reservoir is disclosed which includes an anti-reflux valve. The anti-reflux valve includes a housing defining a fluid receptacle which opens into the fluid reservoir. The housing is secured to the urine collection bag such that the opening of the receptacle is covered by the at least one sheet of material. A cut-out is formed in the sheet of material below the housing opening to define a flap which overhangs the opening in the fluid receptacle. The flap is movable into the fluid reservoir to allow fluid to flow from the receptacle into the reservoir. Fluid flow from the reservoir towards the receptacle causes the flap to seal against a peripheral rim of the housing and, thus, is substantially prevented.
136 Citations
21 Claims
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1. A urine collection bag comprising:
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at least one sheet of flexible material defining a fluid reservoir; and
an anti-reflux valve including a valve housing defining a fluid receptacle positioned externally of the fluid reservoir, the valve housing including a peripheral rim which is secured to the at least one sheet of flexible material adjacent an inlet opening formed in the at least one sheet of flexible material;
wherein the inlet opening in the at least one sheet of material forms a flap in the at least one sheet of flexible material, the flap being positioned to abut the peripheral rim of the housing and substantially seal the inlet opening when fluid flows from the fluid reservoir toward the fluid receptacle, the peripheral rim including at least one protrusion positioned to engage the flap to prevent the flap from sealing against the peripheral rim. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A urine collection bag comprising:
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first and second sheets of material, each of the first and second sheets of material having a periphery, the periphery of the first sheet and the periphery of the second sheet being secured together to define a fluid reservoir;
an anti-reflux valve including a valve housing defining a fluid receptacle positioned externally of the fluid reservoir, the valve housing including a peripheral rim which is secured to the first sheet of flexible material adjacent an inlet opening formed in the first sheet of flexible material; and
a vent hole formed in the first sheet of material, the vent hole interconnecting the fluid reservoir and the fluid receptacle. wherein the inlet opening in the at least one sheet of material forms a flap in the first sheet of flexible material, the flap being positioned to abut the peripheral rim of the housing and substantially seal the inlet opening when fluid flows from the fluid reservoir toward the fluid receptacle. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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Specification