A dialysis bag is provided, including a first layer of film and a second layer of film each having a closed end and an opposite outlet end, the layers sealed together about corresponding peripheral edges to define a bag chamber. An outlet assembly is sealingly disposed at the corresponding outlet en
A dialysis bag is provided, including a first layer of film and a second layer of film each having a closed end and an opposite outlet end, the layers sealed together about corresponding peripheral edges to define a bag chamber. An outlet assembly is sealingly disposed at the corresponding outlet ends and has a tubular administrative outlet with an inlet and is in fluid communication with the bag chamber. A dimple is formed in at least one of the layers adjacent to the inlet for preventing occlusion as a fluid level decreases in the bag.
대표청구항▼
1. A dialysis bag, comprising: a first layer of film and a second layer of film each having a closed end and an opposite outlet end; said layers sealed together about corresponding peripheral edges to define a bag chamber; an outlet assembly sealingly disposed at said corresponding outlet ends and h
1. A dialysis bag, comprising: a first layer of film and a second layer of film each having a closed end and an opposite outlet end; said layers sealed together about corresponding peripheral edges to define a bag chamber; an outlet assembly sealingly disposed at said corresponding outlet ends and having a tubular administrative outlet with an inlet and being in fluid communication with said bag chamber, said outlet being sealingly sandwiched between said first and second layers of film and said inlet projecting past a seal joining said layers and into said bag chamber; a dimple formed in said first layer adjacent to said inlet for preventing occlusion as a fluid level in said bag decreases; and a first outlet end seal connecting said first and second layers and having an axially extending segment being in spaced, parallel relationship to said administrative outlet, having a length extending linearly from said outlet end and having a seal segment end of said length extending farther axially into said bag chamber than said inlet, said dimple having a length and a width, said length being longer than said width and extending only along a line between said inlet and said seal segment end, with a first end of said dimple disposed adjacent said inlet, and a second end of said dimple being disposed adjacent said seal segment end. 2. The bag of claim 1 further including an outlet end seal securing said first and second layers at said outlet end on sides of said outlet assembly, forming a first outlet end seal and a second outlet end seal, said first outlet end seal being asymmetric with said second outlet end seal. 3. The bag of claim 2 wherein said first outlet end seal is provided with a reinforcing rib. 4. The bag of claim 2 wherein said tubular administrative outlet is laterally spaced from said first outlet end seal for enhancing formation of said dimple. 5. The bag of claim 4 wherein said outlet is spaced from said first outlet end seal between 1/16 and 5/16 inch. 6. The bag of claim 3 wherein said reinforcing rib is generally “L”-shaped. 7. The bag of claim 2 wherein said first outlet side seal has an angled portion forming an approximate 90 degree angle. 8. The bag of claim 7 further including a generally “L”-shaped reinforcing rib disposed on said first outlet side seal such that said angled portion is between said reinforcing rib and said tubular administrative outlet. 9. The bag of claim 1, wherein said first outlet end seal defines an angle, and said dimple extends between said angle and said inlet. 10. The bag of claim 9, wherein said angle includes a first portion extending generally parallel to an axis of said tubular administrative outlet, and a second portion extending generally transversely to said axis. 11. The bag of claim 10, wherein said second portion is spaced from an outlet edge of said first and second layers by a sealed web extending approximately 0.803 inch. 12. A peritoneal dialysis bag, comprising: a bag chamber defined by a pair of complementary layers sealed together to form a bag chamber therebetween and having a first, outlet end and a second, closed end opposite said outlet end; said bag layers sealed together in part at said outlet end by a first outlet end seal; at least one tubular administrative outlet sealingly disposed at said outlet end and in fluid communication with said bag chamber, said outlet having an inlet projecting into said bag chamber past a seal joining said bag layers together; said seal including a linear, axially extending seal segment extending in spaced, parallel relation to said outlet and into said bag chamber to create a displacement between an end of said segment and said inlet; and a dimple formed in at least one said layer, having a length and a width, the length being longer than said width and, said dimple having a first end adjacent said inlet of said outlet and a second end adjacent said end of said seal segment of said first outlet end seal for preventing occlusion of said inlet as said bag is depleted of fluid, said dimple located only along a line extending between said inlet and said end of said segment. 13. The bag of claim 12, wherein said dimple is constructed and arranged so that occlusion is prevented regardless of the angular orientation of said tubular administrative outlet relative to said bag. 14. The bag of claim 12, wherein said dimple is formed in part by said first outlet seal being asymmetrical with a second outlet seal, and said tubular inlet is closer to said first outlet seal than to said second outlet seal. 15. The bag of claim 12, wherein said first outlet seal includes a second seal segment that defines an angle with said portion extending generally parallel to an axis defined by said tubular inlet, and said second seal segment is spaced between 3/16 and 9/16 inch from said inlet of said outlet. 16. The bag of claim 14, further including a generally “L”-shaped support rib disposed relative to said first outlet seal such that said seal portion is located between said rib and said tubular administrative outlet. 17. A peritoneal dialysis bag, comprising: at least one tubular administrative outlet sealingly disposed at an outlet end of a bag chamber and in fluid communication with said bag chamber, said outlet having an inlet projecting into said bag chamber past a seal joining said bag layers together; a dimple formed in at least one said bag layer and having a first end adjacent said inlet and a second end adjacent an end of an axially extending segment of a first outlet end seal, wherein said dimple extends only along a line between said inlet and said seal segment end, said first outlet end seal being asymmetrical with a second outlet end seal, said axially extending segment of said first outlet end seal extending further axially into said bag chamber than said inlet of said first outlet seal and also further axially relative to said second outlet end seal; said inlet is closer to said first outlet end seal than to said second outlet end seal; and a generally “L”-shaped support rib being disposed relative to said first outlet end seal such that said seal portion is located between said rib and said tubular administrative outlet.
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