Abstract: A medical treatment system, such as peritoneal dialysis system, may include control and other features to enhance patient comfort and ease of use. For example, a peritoneal dialysis system may include patient line state detector for detecting whether a patient line is primed before it is to be connected to the patient. The patient line state detector can also the ability to detect whether a patient line has been properly mounted for priming. Both patient line presence/absence and fill state can be determined using an optical system, e.g., one that employs a single optical sensor.

Abstract: A fill adapter for filling a reservoir. The fill adapter includes a button assembly actuator and a pump chamber plunger actuator hingably attached to the button assembly actuator, wherein the actuation of the button assembly actuator actuates the pump chamber plunger actuator and wherein the pump chamber plunger actuator actuates a pump chamber membrane before the at least one button assembly is actuated.

Abstract: Dialysis systems comprising actuators that cooperate to perform dialysis functions and sensors that cooperate to monitor dialysis functions are disclosed. According to one aspect, such a hemodialysis system comprises a user interface model layer, a therapy layer, below the user interface model layer, and a machine layer below the therapy layer. The user interface model layer is configured to manage the state of a graphical user interface and receive inputs from a graphical user interface. The therapy layer is configured to run state machines that generate therapy commands based at least in part on the inputs from the graphical user interface. The machine layer is configured to provide commands for the actuators based on the therapy commands.

Abstract: A system for delivery of a volume of infusible fluid. The system includes a controller configured to calculate a trajectory for delivering infusible fluid, the trajectory comprising at least one volume of fluid, and determine a schedule for delivering the at least one volume of fluid according to the trajectory, wherein the schedule comprising an interval and a volume of infusible fluid for delivery. The system also includes a volume sensor assembly for determining the at least one volume of fluid delivered, wherein the controller recalculates the trajectory based on the volume of fluid delivered.

Abstract: Components for a medical infusion fluid handling system, such as an APD system, in which one or more lines (30) (such as solution lines), spikes (160) or other connection ports may be automatically capped and/or de-capped. This feature may provide advantages, such as a reduced likelihood of contamination since no human interaction is required to de-cap and connect the lines, spikes or other connections. For example, a fluid handling cassette (24) may include one or more caps (63) that cover a corresponding spike (160) and include a raised and/or recessed feature to assist in removal of the cap from the cassette. A solution line cap (31) may include a hole and recess, groove or other feature to engage with a spike cap enable removal of the cap.

Abstract: A medical infusion fluid handling system, such as an APD system, may be arranged to de-cap and connect one or more lines (30) (such as solution lines) with one or more spikes (160) or other connection ports on a fluid handling cassette (24). This feature may reduce a likelihood of contamination since no human interaction is required to de-cap and connect the lines and spikes. For example, an APD system may include a carriage (146) arranged to receive a plurality of solution lines (30) each having a connector end (31a) and a cap (31). The carriage may move along a first direction so as to move the connector ends of the solution lines along the first direction, and a cap stripper (149) may be arranged to engage with caps on the solution lines on the carriage. The cap stripper may move in a second direction transverse to the first direction, as well as to move with the carriage along the first direction.

Abstract: An occluder (147), and methods for occlusion, that employs first and second opposed occluding members (165) associated with each other, a tube contacting member (161) connected to, or comprising at least a portion of, at least one of the first and second occluding members, and a force actuator (166) constructed and positioned to apply a force to at least one of the first and second occluding members. Application of the force by the force actuator may cause the tube contacting member to move between a tube occluding and an open position. A release member (169) may be configured and positioned to enable an operator to manually move the tube contacting member from the tube occluding position to the open position even with no force applied to the occluding member by the force actuator.

Abstract: A medical treatment system, such as peritoneal dialysis system, may include control and other features to enhance patient comfort and ease of use. For example, a cycler device (14) may include a heater bag receiving section (142) and a lid (143) mounted to cover and uncover the heater bag receiving section, potentially enabling faster heating of dialysate. A user interface (144) may be moveable to be received into the receiving section and covered by the Hd, if desired. The system may detect anomalous conditions, such as tilting of the system housing, and automatically recover without terminating a treatment. The system may include noise reduction features, such as porting pneumatic outputs to a common chamber, and others. The system may also automatically detect any one of several different solution lines (30) connected to the system, and control operation accordingly, e.g., to mix solutions provided by two or more lines and form a needed dialysate solution.

Abstract: A fluid handling cassette (24), such as that useable with an APD cycler device or other infusion apparatus, may include a generally planar body having at least one pump chamber (181) formed as a depression in a first side of the body and a plurality of flowpaths for fluid that includes a channel. A patient line port may be arranged for connection to a patient line (34) and be in fluid communication with the at least one pump chamber via at least one flowpath, and an optional membrane (15) may be attached to the first side of the body over the at least one pump chamber. In one embodiment, the membrane may have a pump chamber portion (151) with an unstressed shape that generally conforms to the pump chamber depression in the body and is arranged to be movable for movement of fluid in the useable space of the pump chamber. One or more spacers (50) may be provided in the pump chamber to prevent a pump membrane from contacting an inner wall of the pump chamber.

Abstract: A product dispensing system includes a flow control device configured to regulate a first ingredient. A pump module is configured to be coupled to a supply of a second ingredient. A controller is configured to provide a first control signal to the flow control device for controlling the supply of a first quantity of the first ingredient based upon, at least in part, a predetermined recipe. The controller is further configured to provide a second control signal to the pump module for controlling the supply of a first quantity of the second ingredient based upon, at least in part, the predetermined recipe.

Abstract: An audio alarm for a transporter having an electric motor. The alarm has a signal generator for generating a signal within the audible frequency range and a modulator for modulating a current that is applied to the electric motor in accordance with the signal generated by the signal generator.

Abstract: A cassette for controlling the flow of IV fluid from a patient to a source. The cassette preferably includes, along the fluid passage through the cassette, first and second membrane-based valves on either side of a pressure-conduction chamber, and a stopcock-type valve. The stopcock valve is preferably located downstream of the second membrane-based valve, which is preferably located downstream of the pressure-conduction chamber. The stopcock control valve preferably has two rigid cylindrical members with complementary surfaces, wherein one member includes a tapered groove defined on its complementary surface. The two complementary surfaces define a space therebetween, instead of having an interference fit, and a resilient sealing member is disposed in this space.

Abstract: Improvements to personal vehicles including self-propelled and balancing personal vehicles. Ready detachability of a seat, footrest, seat back, control unit, wheels and caster assembly is provided using quick disconnect mechanisms.

Abstract: A method of removing and retrieving a staple or other fastening device for a plurality of objects, commonly paper, without the use of additional tools. The combined fastening removal and retrieval device comprises a tab of tear-resistant material that is placed on top of or around the objects being stapled or otherwise fastened together. The combination of the stack of papers and the combined fastening removal and retrieval device is then fastened together to form a single object. To remove the fastening device, the user pulls on the tab, which in turn pulls on the fastening device, such as a staple, until the staple or other fastening device is removed from the stack of papers. An additional benefit is that the staple will remain attached to the fastening removal device.

Abstract: Systems and methods for controlling a device are disclosed. In one embodiment, the systems and methods allow for the control of a human transport device such that the human transport device remains in an upright position regardless of the surface being traversed. The systems and methods may include a plurality of operational modes where each mode has different characteristics. Additionally, systems and method for locating a center of gravity of a device are disclosed.