Systems and methods for delivery of peritoneal dialysis (PD) solutions with integrated inter chamber diffuser
First Claim
1. A container system for medical agents, comprising:
- a first compartment that contains a first medical agent,a second compartment that contains a second medical agent, the second compartment being fluidly couplable with the first compartment via a fluid pathway-defining port that is disposed internally to one or more of the first and second compartments, anda diffuser that is disposed within and movable relative to the port,wherein the diffuser is movable toward one end of the port to permit movement of at least one of said medical agents through the port and into the first compartment and to facilitate mixing therein,wherein the diffuser is movable toward another end of the port to permit movement of at least one of said medical agents through the port and into the second compartment to facilitate mixing therein.
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Accused Products
Abstract
The invention provides, in some aspects, a container system for medical solutions such as peritoneal dialysis (PD) solutions. The invention particularly features a system which includes a first compartment that contains a first medical solution, e.g., a PD osmotic agent, and a second compartment that contains a second medical solution, e.g., a PD buffer agent. The compartments maintain their respective contents separately from one another for purposes of transport, storage and/or sterilization. However, the compartments are fluidly couplable, so that their respective contents can be combined with one another, e.g., following sterilization of the agents and prior to their introduction into the patient'"'"'s abdomen. To that end, a container system can include a diffuser that is disposed in a fluid pathway between the first and second compartments, e.g., to facilitate homogeneous mixing of the first and second PD agents. That diffuser is disposed within and moves relative to a structure, such as a port that defines the fluid pathway between those compartment. Thus, for example, the diffuser can comprise a body that “floats” within that pathway-defining structure and that moves from one end to the other (and/or to from points there between), depending on a direction of solution flow through the structure.
259 Citations
31 Claims
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1. A container system for medical agents, comprising:
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a first compartment that contains a first medical agent, a second compartment that contains a second medical agent, the second compartment being fluidly couplable with the first compartment via a fluid pathway-defining port that is disposed internally to one or more of the first and second compartments, and a diffuser that is disposed within and movable relative to the port, wherein the diffuser is movable toward one end of the port to permit movement of at least one of said medical agents through the port and into the first compartment and to facilitate mixing therein, wherein the diffuser is movable toward another end of the port to permit movement of at least one of said medical agents through the port and into the second compartment to facilitate mixing therein. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A multiple chamber vessel for peritoneal dialysis (PD) agents, comprising
a first compartment that contains a PD osmotic agent, a second compartment that contains a PD buffer agent, the second compartment being fluidly couplable with the first compartment via an elongate fluid pathway-defining port that is disposed internally to one or more of the first and second compartments, and a diffuser that is disposed within and movable relative to the port, wherein the diffuser is movable toward one end of the port to permit movement of at least one of said PD agents through the port and into the first compartment and to facilitate mixing therein, wherein the diffuser is movable toward another end of the port to permit movement of at least one of said PD agents through the port and into the second compartment to facilitate mixing therein, and the port including a first frangible seal to prevent contact between the PD osmotic agent and the PD buffer agent.
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26. A container system for medical agents, comprising
a first compartment that contains a first medical agent, a second compartment that contains a second medical agent, the second compartment being fluidly couplable with the first compartment via a fluid pathway-defining port that is disposed internally to one or more of the first and second compartments, a diffuser that comprises one or more apertures and that is disposed within and movable relative to the port, wherein the diffuser is movable to one end of the port to permit movement of at least one of said medical agents through the port and into the first compartment and to facilitate mixing therein, wherein the diffuser is movable to another end of the port to permit movement of at least one of said medical agents through the port and into the second compartment to facilitate mixing therein, and wherein the port includes one or more structural elements that prevent the diffuser from obstructing movement of the medical agents into, through and/or out of the port.
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30. A multiple chamber vessel for peritoneal dialysis (PD) agents, comprising
a first compartment that contains a PD osmotic agent, a second compartment that contains a PD buffer agent, the second compartment being fluidly couplable with the first compartment via a fluid pathway-defining port, a diffuser that is disposed within and movable relative to the port, wherein the diffuser is movable toward one end of the port to permit movement of at least one of said PD agents through the port and into the first compartment and to facilitate mixing therein, wherein the diffuser is movable toward another end of the port to permit movement of at least one of said PD agents through the port and into the second compartment to facilitate mixing therein, wherein the port includes a first frangible seal to prevent contact between the PD osmotic agent and the PD buffer agent, a second frangible seal that prevents fluid transfer between the second compartment and an outlet fluid pathway of the vessel, wherein the port includes one or more structural elements that prevent at least one of the first and second seals from obstructing movement of any of said PD agents into, through and/or out of the port after that respective seal is broken.
Specification