Abstract: A hemodialysis machine includes a main body and a door connected to the main body. The door and the main body cooperate to define a non-removable chamber. The door is openable relative to the main body of the hemodialysis machine to allow a salt to be placed into the non-removable chamber when the door is in an open position. The main body further includes a fluid inlet, a fluid outlet, and a pumping mechanism. The fluid inlet and the fluid outlet are in fluid communication with the non-removable chamber. The pumping mechanism is configured to deliver a fluid from a fluid source to the non-removable chamber through the fluid inlet to mix with salt within the non-removable chamber to form a salt solution that exits the non-removable chamber through the fluid outlet.

Abstract: A dialysis machine comprising: a power supply for providing power to the dialysis machine, the power supply including a power supply cable that includes a first ground wire electrically connected to a first ground prong; and a hydraulics system for making dialysate, supplying the dialysate to a dialysate circuit, and draining spent dialysate from the dialysate circuit, the hydraulics system including a hydraulics grounding cable that includes a second ground wire electrically connected to a second ground prong.

Abstract: A system for blood treatment that includes a blood treatment machine. The blood treatment machine includes a receiver, a user interface configured to display information related to the blood pressure data received by the receiver, and a controller. The controller is configured to generate a notification to notify a user of an upcoming blood pressure measurement before the blood pressure measurement occurs. The blood treatment machine also includes a blood pressure monitoring device connected to the blood treatment machine, the blood pressure monitoring device configured to send signals containing blood pressure information to the receiver of the blood treatment machine.

Abstract: An intelligent support assembly, for example, a mobile support assembly (e.g., cart) for a dialysis machine (e.g., a peritoneal dialysis cycler), and methods for performing dialysis treatment using such an assembly. The intelligent support assembly may be configured to determine one or more properties relating to a dialysis treatment being performed on a patient using the dialysis machine, and to control one or more actions that affect the dialysis treatment based at least in part on the determined one or more properties. The cart may be configured to receive information corresponding to the one or more properties from, and transmit such information to, the dialysis machine, network access devices, sensor devices, and other devices. The controlled actions may include adjusting a height of dialysis solution or other items relative to a height of the patient, and moving the cart relative to the location of the patient.

Abstract: A sensor assembly measures characteristics of a fluid entering or exiting a patient via a catheter. The sensor assembly includes a flow tube that accepts the fluid at a first end thereof expels the fluid at a second end thereof, a plurality of sensors disposed about the flow tube, the sensors including at least one temperature sensor that measures temperature of the fluid and at least one pressure sensor that measures pressure of the fluid, and a connector that connects the sensor assembly to the catheter. The sensors may also include a clarity sensor, a conductivity sensor, a flow sensor, and/or an air detector. The sensor assembly may also include a wireless communication device that provides wireless communication. The sensor assembly may communicate with a dialysis machine via a network. The dialysis machine may be a peritoneal dialysis machine.

Abstract: A medical fluid delivery cassette configured for use with a medical fluid pumping system and related systems and methods. The medical fluid delivery cassette includes a base and a membrane that together define a fluid pump chamber. The medical fluid delivery cassette further includes a member configured to apply an outward force to an inner surface of the membrane.

Abstract: A method comprising: establishing a wireless connection between a first medical device and a second medical device, comprising: receiving, by the first medical device, via a short-range wireless technology protocol, connection information related to the second medical device; and establishing, by the first medical device, a wireless connection with the second medical device based on the connection information.

Abstract: Systems and sensor clip assemblies for optically monitoring blood flowing through a blood chamber are provided. A sensor clip assembly includes emitters and photodetectors positioned on opposing arms, a signal conditioning circuit for conditioning raw analog signals generated by the photodetectors while the sensor clip assembly is fastened to a blood chamber, and an analog-to-digital converter for converting the conditioned analog signals to raw digital data. The sensor clip assembly may output the raw digital data to an external device and receive synchronized control signals from the external device, or the sensor clip assembly may include a microcontroller for performing calculations on the raw digital data and providing synchronized control signals internally. Parameters of blood flowing through the blood chamber such as hematocrit, oxygen saturation, and change in blood volume may be calculated from the raw digital data derived from the raw analog signals generated by the photodetectors.

Abstract: In general, a dialysis device includes a first processing device for monitoring dialysis functions of the dialysis device, a second processing device, a display device, and memory. The memory is configured to store instructions that, when executed, cause the dialysis device to provide, on the display device, a first display region and a second display region, where the first display region is associated with the first processing device and the second display region is associated with the second processing device. At least a portion of the first display region cannot be obscured by the second display region.

Abstract: This disclosure relates to medical fluid cassettes and related systems and methods. In certain aspects, a medical fluid cassette includes a base having a first region and a second region, a first membrane overlying the first region of the base, and a second membrane overlying the second region of the base. The second membrane is configured to rebound away from the base when a force used to press the second membrane toward the base is released.

Abstract: This disclosure relates to medical fluid sensors and related systems and methods. In some aspects, a medical fluid cartridge includes a body including a first portion defining a first fluid passageway and a second portion defining a second fluid passageway in fluid communication with the first fluid passageway. The first portion of the body can be disposed in a radio frequency device while the second portion of the body remains outside the radio frequency device.

Abstract: Devices, systems, and methods can be used to deliver temperature-controlled medical fluids to patients. For example, this disclosure provides devices, systems, and methods for controlling the temperature of dialysate delivered to a patient during a peritoneal dialysis treatment.

Abstract: A dialysis system, comprising: a dialysis machine; an authentication component configured to determine that a source of a voice command received by the dialysis system is an authorized user of the dialysis system; and a processor configured to carry out a function determined based on the voice command.

Abstract: A medical wetness sensing device includes a base adapted to be disposed on a wearer of the medical wetness sensing device. The base includes a first electrical conductor and a second electrical conductor electrically insulated from the first electrical conductor. The first electrical conductor includes a hinge portion enabling a first portion of the first electrical conductor to deflect, at the hinge portion, relative to a second portion of the first electrical conductor. The medical wetness sensing device includes a controller electrically connected to the first electrical conductor and the second electrical conductor. The controller is configured to detect a presence or an absence of a medical fluid electrically connecting the first and second electrical conductors.

Abstract: A system for controlling the position of a diaphragm in a diaphragm-containing pressure pod, is provided. The system can include a peristaltic pump, a pressure pod having a flow-through fluid side and a gas side that are separated by a diaphragm, and a pressure sensor operatively connected to the gas side. The pressure sensor is configured to sense pulses of pressure resulting from movement of the diaphragm and caused by the action of the peristaltic pump. A gas source and a valve can be in fluid communication with the gas side of the pressure pod and can be configured to provide gas to, or vent gas from, the gas side. A controller receives pressure signals from the pressure sensor and controls the valve in response, and in so doing, controls the position of the diaphragm. Methods for positioning the diaphragm are also included.

Abstract: This disclosure relates to fluid line sets and related methods. In certain aspects, the fluid line sets include a vial adapter connected to a first end of a fluid line, and a cap removably attached to a second end of the fluid line such that the cap seals the second end of the fluid line. The vial adapter includes a base, a spike extending from a central region of the base, and a sidewall extending from the base and substantially surrounding the spike. The base and the side wall at least partially define a cavity configured to receive a portion of a vial. The cap includes a deformable portion at least partially defining a gas chamber, and the cap is configured so that deformation of the deformable portion causes gas to be forced from the gas chamber to the vial adapter via the fluid line.

Abstract: A hemodialysis system according to an embodiment of the present invention includes a hydrochamber, and a water circuit for water to flow from an external water source into the hydrochamber via a water inlet valve. The hemodialysis system further includes a spent dialysate circuit for a disinfecting agent to flow to the hydrochamber via a recirculation valve during a disinfectant operation, and a drain valve disposed in the spent dialysate circuit. During the disinfectant operation, the hemodialysis system is adapted to replace a volume of the disinfecting agent exiting the spent dialysate circuit via the drain valve with an equal volume of water via the water inlet valve. The recirculation valve is directly connected to the hydrochamber such that in response to a pressure drop at the external water source, the disinfecting agent is prevented from backflowing through the water inlet valve.

Abstract: A measurement system for measuring blood characteristics includes a controller, an emitter, a sensor, a reference photo sensor, and a mask. The emitter emits light at a plurality of wavelengths from a first side of a blood flow channel to a second side of the blood flow channel. The sensor is provided on the second side of the blood flow channel. The reference photo sensor is provided on the first side of the blood flow channel. The mask is provided on the first side blocking reflected light other than from the light from the emitter to enter the reference photo sensor. The controller compensates measurements from the sensor based upon measurements from the reference photo sensor.

Abstract: An electrical sensor for sensing electromagnetic properties of process fluids in a dialysis machine or a similar medical device can include a probe for interfacing with the fluids that is made from electronic fabric materials. The electronic fabric probe can include one or more conductors embedded in a non-conductive fabric layer. The electronic fabric probe is accommodated an enclosure which establishes a flow path with respect to the probe to establish fluid contact between the process fluids and the conductors. The conductors can apply or sense current and/or voltage with respect to the fluid. A portion of the electronic fabric probe can be disposed externally of the enclosure to provide electronic communication externally of the enclosure.