Dialysis bag with anti-occlusion feature

摘要

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.

主权项

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.