Abstract:
A medical fluid infusion system (10) including: a fluid pathway (16) for transporting a pulsatile flow of fluid; a dampening element (80) in communication with the fluid pathway, the dampening element configured to actively dampen pressure fluctuations of the pulsatile flow to smoothen the pulsatile fluid flow, the dampening element operable in any orientation; and a fluid flow sensor (50) disposed along the fluid pathway downstream of the dampening element to measure the flow rate of the smoothened fluid flow.
Abstract:
A dialysis system instrument includes a dialysis instrument (10), a disposable pumping and valving cassette apparatus (30) operable with pumping and valving actuators of the dialysis instrument, the disposable cassette (50) including an electronic cell (100c) and electronics associated with the electronic cell, the electronics configured to determine an electrical property of a solution flowing through the electronic cell of the disposable apparatus.
Abstract:
A medical fluid infusion system (10) including: a fluid pathway (16) for transporting a pulsatile flow of fluid; a dampening element (80) in communication with the fluid pathway, the dampening element configured to actively dampen pressure fluctuations of the pulsatile flow to smoothen the pulsatile fluid flow, the dampening element operable in any orientation; and a fluid flow sensor (50) disposed along the fluid pathway downstream of the dampening element to measure the flow rate of the smoothened fluid flow.
Abstract:
A monitor for an extracorporeal therapy access site is disclosed. The monitor includes a bandage atop or adjacent the access site and a sensor for monitoring the bandage. The bandage includes a layer of polymer that expands when wetted with blood. The expansion causes a break in continuity of the sensor, or in an alternate embodiment, causes a sensor to cease detecting a target. When the break occurs, the control circuit monitoring the bandage sends a signal that a break has occurred, and a remote monitor then takes appropriate action, such as ceasing therapy, sending an alert, or sounding an alarm. In another embodiment, connecting wires in a continuity circuit are held apart by a polymer that dissolves when contacted by blood. If a leak occurs and a small portion of the polymer dissolves, the wires make contact, thus detecting a blood leak.
Abstract:
A dialysis fluid heating system includes a plurality of conductive tubes; first and second end caps located at first and second ends of the tubes, respectively, the first end cap including a dialysis fluid inlet and a dialysis fluid outlet, the end caps and the tubes configured such that dialysis fluid can flow from the fluid inlet of the first end cap, through at least one first tube to the second end cap, and through at least one second tube back to the first end cap; a conductive wire wound around an outside of the conductive tubes; and electronics configured to supply power to the conductive wire, the wire forming a primary coil of a transformer, the tubes forming a secondary coil of the transformer.
Abstract:
A method. The method comprises, at a reader, performing at least one transaction-based risk management process prior to energizing a contactless interface, initiating communication with a card utilized for the contactless transaction, receiving information associated with the card, and terminating communication with the card prior to authorizing the contactless transaction.
Abstract:
Hydroxylamine is formed in a reactor through a partial hydrogenation of nitric oxide gas (NO) with hydrogen gas (H 2 ) in an aqueous medium with nitrogen gas (N 2 ) as an inert gas. The formation of the hydroxylamine forms nitrous oxide gas (N 2 O). The gases and the water vapor are flowed away from the reactor in a vent gas stream enabling recycling of the gases. The N 2 O is removed from the vent gas stream to reduce flammability. Once the N 2 O is removed, the NO, H 2 , and N 2 are recycled and re-used in the reactor to form additional hydroxylamine. The N 2 O removed from the vent gas stream can be commercially sold or economically discarded.
Abstract translation:羟胺在反应器中通过在氮气(N 2/2)的水性介质中将一氧化氮气体(NO)与氢气(H 2 H 2)部分氢化形成为反应器, 惰性气体。 羟胺的形成形成一氧化二氮气体(N 2 O 2)。 气体和水蒸气以能够再循环气体的排气气流从反应器中流出。 从排出气流中除去N 2 O 2以降低可燃性。 一旦去除了N 2 O 2,则NO,H 2 N 2和N 2 O 2被再循环并重新用于反应器以形成额外的 羟胺。 从排放气流中除去的N 2 O 2可以商业销售或经济地丢弃。
Abstract:
A delivery system for active agents, and methods of making and using the systems, are provided. The delivery systems have (i) a ligand that is selective for an endogeneous plasma protein in the serum of a subject; and, (ii) a linker configured for operatively attaching the ligand covalently to an active agent to increase the half-life of the active agent in the serum.
Abstract:
A system, apparatus, and method for enabling effective use of a contactless payment device in a transit system. The invention may be implemented in a manner that separates the authentication process from the pre-authorization process, thereby permitting a transit system patron to access and begin use of the transit system prior to authorization of the transaction by the issuer of the device.
Abstract:
A dialysate testing method in one embodiment includes placing electrical contacts in a dialysate flow path, measuring an electrical property of the dialysate as it flows through the flow path and past the contacts, and determining whether the dialysate has been mixed properly from the detected electrical property. A dialysate testing method in another embodiment includes flowing dialysate past a pair of electrical contacts, calculating a conductivity of the dialysate using an algorithm that takes into account a geometry of the contacts, and using the calculated conductivity to determine if the dialysate has been removed properly.