A hose pump includes a hose bed having a counter support, a carrier disk rotatable relative to the counter support, and a number of pinch rollers and guide rollers arranged on the carrier disk. A guide roller is arranged between two consecutive pinch rollers, and the pinch rollers press a hose inserted into hose bed against the counter support, while pinching the hose when the carrier disk is rotating in the conveying direction to transport the fluid in the hose. To ensure reliable threading of a hose section of a pump hose, when the hose section is somewhat too short and to prevent unthreading of the inserted hose section during operation of the hose pump, the angular distance between a guide roller and the pinch roller preceding the guide roller in the conveying direction is greater than the angular distance between this guide roller and the pinch roller following the guide roller in the conveying direction.

A flow control apparatus adapted to receive a feeding set includes a housing capable of receiving at least a portion of the feeding set. A pumping device is supported by the housing and positioned to contact the feeding set when the feeding set is received by the housing so the pumping device acts on the feeding set to produce fluid flow in the feeding set for delivery of fluid to a subject. An ultrasonic sensor is supported by the housing and arranged with respect to the pumping device to produce a sensor signal indicative of a viscosity of the fluid delivered through the feeding set. A control circuit is in communication with the ultrasonic sensor for receiving the sensor signal from the sensor indicative of the viscosity of the fluid and in communication with the pumping device to control operation thereof.

A peristaltic pump has an arcuate raceway with a partially concave inner surface extending through an arc of at least one hundred eighty degrees (180°). The arc defines a midpoint, and a rotor faces the inner surface of the raceway and is both rotatable relative to the raceway and translationally movable relative to the raceway between a pump position, wherein the rotor is spaced from the midpoint a first distance, and a tube load position, wherein the rotor is spaced from the midpoint a second distance greater than the first distance. A motor is coupled to the rotor to rotate the rotor plural are rollers arranged on the rotor to contact tubing disposed between the rotor and the raceway when the rotor is in the pump position. The motor is prevented from stopping at a predetermined angular position to facilitate loading and unloading tubing.

Interventional catheter assemblies, operating systems and adaptive interface components allow operation of a variety of interventional catheter assemblies, including infusion catheters, aspiration catheters and interventional catheters that provide both infusion and aspiration, using a common control console housing infusion and aspiration systems. Adaptive tubing cassettes having a handle and one or more preformed tubing loops route aspiration and/or infusion tubing in a predetermined configuration to mate with aspiration and infusion systems on a control console.

A pump system is disclosed that comprises a control unit and one or more modular infusion devices removably docked to the primary control unit. Each modular infusion device comprises a pumping mechanism and a processor configured to control the pumping mechanism and communicate with the control unit. The modular infusion device is configured to manipulate a portion of a fluid delivery set to pump a fluid. The first processor and the second processor are configured to exchange one or more operating parameters when the modular infusion device is docked to the primary control unit. The modular infusion device is configured to pump the fluid after being undocked.

A unified dispenser for holding, mixing, and dispensing a drug includes a housing holding a diluent reservoir, a drug reservoir, and a tubing set connecting and defining a fluid communication path therebetween. A first occlusion is at the diluent reservoir, and a second occlusion is at the drug reservoir. In a storage state of the dispenser, the first and second occlusions are entirely encased within the housing and occlude the fluid communication path. First and second pull assemblies extend outside the housing. The first and second pull assemblies are coupled to the first and second occlusions, respectively, so that removal of the first and second pull assemblies removes the first and second occlusions and joins the diluent reservoir to the drug reservoir in fluid communication through the tubing set, thereby arranging the dispenser from the storage state to a use state.

A pump set for use with a pumping apparatus includes tubing for carrying a liquid. A valve mechanism is mounted to the tubing between an inlet section and a pump engagement section. The valve mechanism includes a first port connected to the inlet section of the tubing, a second port connected to the pump engagement section of the tubing, and a valve disposed between the first and second ports. The valve includes a stem rotatably mounted within a stem holder. The stem includes a flow passage extending through the stem and having an open V shape whereby a narrow open end of the flow passage communicates with the first port and a wide open end of the flow passage communicates with the second port to place the inlet section of the tubing in communication with the pump engagement section of the tubing.

Air-in-line sensor systems and methods of using same are provided. The system includes an adapter (60) including first and second cylindrical portions defining a fluid flow channel, the first cylindrical portion comprising two adjacent wedge-shaped protrusions (68). Each wedge-shaped protrusion is infrared transmittive and defines an outer surface and an inner surface. The system further includes a tube and an infrared reflective sensor having an infrared light emitter (42,52) and an infrared light detector (44,54). The infrared light emitter and the infrared light detector are positioned at or near an adapter so that an infrared light can be transmitted to the adapter and at least a portion of the infrared light reflected off the adapter can be detected by the infrared light detector.

The subject technology is embodied in a method for predicting a delivery rate of a plurality of drugs dispensed by multiple infusion pumps at a delivery point. The method includes receiving one or more operating parameters related to multiple drug pumps and a carrier fluid pump, wherein each of the drug pumps dispenses a drug, and the carrier fluid pump dispenses a carrier fluid. The method also includes determining a delivery rate of a first drug at the delivery point. This can be done by predicting time variation of a concentration of the first drug at the delivery point based on a mathematical model of a mixed flow through a fluid path that terminates at the delivery point. The mixed flow includes the drugs and the carrier fluid. The model includes the operating parameters and a plurality of flow-parameters related to the mathematical model of the mixed flow.

A medical device and a system for medical treatment comprising the medical device are disclosed. The medical device comprises a fluidic conduit and/or is configured to be operatively coupled to a fluidic conduit. The medical device comprises a flow regulator for regulating the flow of a fluid in the fluidic conduit and at least two movable elements, which are passively displaceable as a function of a fluidic pressure change in the fluidic conduit or actively displaceable for regulating the flow of fluid in the fluidic conduit. The medical device further comprises at least one transponder circuit comprising at least one transponder element chosen from a capacitor, an inductor, a resistor, or combinations thereof, being arranged with respect to the movable elements such that the transponder circuit has a capacitance or inductance or resistance or resonant frequency or Q factor, which changes as a function of the displacement of the movable elements. The system further comprises a control device comprising a transceiver, wherein the transceiver is configured to transmit energy to the transponder circuit and to read out the capacitance and/or the inductance and/or the resistance and/or the resonant frequency and/or the Q factor of the transponder circuit, such as to determine with the same transponder circuit whether there is a displacement of any of the movable elements. A foil comprising at least one transponder circuit to be arranged in the medical device is also disclosed.