Surgery – Container for blood or body treating material – or means used... – Bag type
Patent
1998-02-06
2000-03-21
Stright, Jr., Ronald K.
Surgery
Container for blood or body treating material, or means used...
Bag type
604416, 206219, 383 38, A61B 1900
Patent
active
060397209
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to a bag for containing a sterile medical solution, comprising glucose or glucose-like compounds, for example a solution for peritoneal dialysis, or a nutritional solution.
BACKGROUND OF THE INVENTION
The present invention starts from what is disclosed in WO 93/09820, relating to a system where the glucose or glucose-like compounds are included in a first package at a high concentration whilst the remaining compounds are separately packed in a second package. The packages are preferably combined into a single, two compartment bag. The packages, or bag, are heat sterilized, preferably autoclaved in a conventional way. The high glucose concentration in the first package protects the glucose or glucose-like compounds from deterioration, which otherwise results in the formation of toxic compounds. Other factors influencing upon the formation of toxic compounds from the glucose or glucose-like compounds are low pH, absence of electrolytes, absence of oxygen contents, short exposure times (at higher temperature) etc.
Bags comprising several compartments are shown in, for example, U.S. Pat. No. 4,403,992 disclosing a bag device for continuous peritoneal dialysis having two chambers one being a dialysis liquid chamber and one being a disinfectant chamber. First the disinfectant is passed through the respective ducts, whereupon the dialysis liquid is passed through the same duct.
Another bag having several chambers is disclosed DE-C1-41 07 223. This bag has a specific frangible web between the chambers being openable for mixing the contents of the two chambers.
Another double compartment container is disclosed in EP-A1-619 998. This container includes a peelable seal constructed from a multilayer film.
A multicompartment flexible bag is disclosed in DE-A1-38 30 630 comprising a clamp dividing the bag into two compartments. By removing the clamp, the contents of the a compartments can be mixed.
U.S. Pat. No. 3,520,471 discloses a sealed flexible container for carrying fluids particularly collecting, storing and dispensing blood. The container has an inclined end seal for improving the possibility to empty the container.
U.S. Pat. No. 4,496,046 discloses a multiple chamber container for the medical field such as nutrition solutions. The bag is composed of two or three compartments for mixing different solutions.
SUMMARY OF THE INVENTION
A container for sterile medical solutions comprises an upper surface, a lower surface, a relatively rigid top border including a central portion and peripheral portions surrounding the central portion, a relatively rigid bottom border, and at least one separation line joining the upper and lower surfaces of the container so as to create first and second compartments within the container. The top border of the container includes an aperture for supporting the container in a first position wherein the first compartment is disposed below the second compartment. The container includes at least one openable connector for selectively connecting the first and second compartment upon opening the openable connector in order to mix the contents of the first and second compartments. The top border includes lines of weakness in the central portion in order to form a hinged connection between the peripheral portions of the top border upon mixing the contents of the first and second compartments.
The at least one separation line is preferably inclined when the container is in the first position. The at least one separation line preferably has a lowest portion and a highest portion and the at least one openable connector is preferably disposed proximate to the lowest portion of the at least one separation line when the container is in the first position.
The container preferably includes a first introduction tube disposed in the top border for introducing a solution into the first compartment and a second introduction tube disposed in the top border for introducing a solution into the second compartment. The container, in certain preferred
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Cho David J.
Gambro AB
Stright Jr. Ronald K.
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