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US 10,478,544 B2Granted
Medicament preparation and treatment devices, methods, and systems
AssigneeNxStage Medical, Inc.
InventorsGoetz Friederichs, William Weigel, Dennis M. Treu, Jeffrey H. Burbank, James M. Brugger, Keith J. Wheeler, Scott W. Newell
Life of this patent
Estimating the term…
Abstract
A medicament preparation system, according to an embodiment, includes a water purification module and a medicament proportioning module. The system is configured to allow convenient and safe use in a home environment or a critical care environment as well as others affording safety, reliability, and a compact form factor.
Claims16
A fluid circuit for preparation of a medicament for renal replacement therapy, comprising:
- a concentrate container containing acid concentrate connected for flow communication, through a first pumping tube segment, to a medicament supply line that has been capped and sterile-sealed at an outlet end thereof;
- a bicarbonate cartridge containing dry bicarbonate buffer compound, the bicarbonate cartridge being of a type that admits water in a cartridge inlet thereby forming a saturated bicarbonate solution which is received at a cartridge outlet, the cartridge outlet being connected for flow communication, through a second pumping tube segment, to the medicament supply line;
- and
- a water inlet line, capped and sterile-sealed, connected for flow communication, through a third pumping tube segment, to the medicament supply line and connected for flow communication to the bicarbonate cartridge inlet;
- the first, second, and third pumping tube segments being supported by a circuit cartridge which orients, aligns, and exposes for access the first, second, and third pumping tube segments with respective actuators of a predefined medicament preparation device;
- the circuit cartridge containing a first concentration sensor station positioned in said medicament supply line downstream of a first junction where the first pumping tube segment connects to the medicament supply line;
- the circuit cartridge containing a second concentration sensor station positioned in said medicament supply line downstream of both said first junction and a second junction where the second pumping tube segment connects to the medicament supply line, wherein
- each of said concentration sensor stations includes a liquid conductivity sensor and a temperature sensor portion,
- the temperature sensor portion includes a flow chamber with a flat surface to permit a temperature sensor to be placed against said flat surface of a predefined sensor of the predefined medicament preparation device, and
- the entire fluid circuit is sterile.
7 more elements
A fluid circuit for preparation of a medicament for renal replacement therapy, comprising:
- a first container containing acid concentrate connected for flow communication, through a first pumping tube segment, to a medicament supply line that has been capped and sterile-sealed at an outlet end thereof;
- a second container containing a buffer concentrate connected for flow communication, through a second pumping tube segment, to the medicament supply line;
- and
- a water inlet line, capped and sterile-sealed, connected for flow communication, through a third pumping tube segment, to the medicament supply line;
- the first, second, and third pumping tube segments being supported by a circuit cartridge which orients, aligns, and exposes for access the first, second, and third pumping tube segments with respective actuators of a predefined medicament preparation device;
- the circuit cartridge containing a first concentration sensor station positioned in said medicament supply line downstream of a first junction where the first pumping tube segment connects to the medicament supply line;
- the circuit cartridge containing a second concentration sensor station positioned in said medicament supply line downstream of both said first junction and a second junction where the second pumping tube segment connects to the medicament supply line, wherein
- each of said concentration sensor stations includes a liquid conductivity sensor and a temperature sensor portion,
- the temperature sensor portion includes a flow chamber with a flat surface to permit a temperature sensor to be placed against said flat surface of a predefined sensor of the predefined medicament preparation device, and
- the entire fluid circuit is sterile.
7 more elements
Dependencies are inferred from the claim text.