Improved feeding set connectors and cassettes are disclosed for use with peristaltic infusion pumps for safely delivering enteral nutritional fluids to a patient. The connectors provide an easy to use “pump-to-set” integration or “keying” system for specific reusable infusion pumps and their matching feeding sets, and can be utilized by medical professionals having various skill levels. The inventive feeding set cassettes can prevent accidental free flow of enteral fluids into a patient, even upon inadvertent release of the connector from the pumping mechanism.

A syringe pump is disclosed that includes a body, a syringe seat, a syringe actuator, a memory, and one or more processors. The syringe seat is coupled to the body. The syringe actuator is configured to actuate a syringe secured within the syringe seat. The memory is configured to store a plurality of instructions. The one or more processors, in accordance with the plurality of instructions, is/are configured to: prime the syringe pump in a prime phase; determine if an occlusion exists during the prime phase using a first test; stop the prime phase; initiate fluid delivery into a patient; enter into a start-up phase; determine if an occlusion exists using a second test during the start-up phase; transition from the start-up phase into a steady-state phase; and determine if an occlusion exists during the steady-state phase using a third test.

A patch-sized fluid delivery device may include a reusable portion and a disposable portion. The disposable portion may include components that come into contact with the fluid, while the reusable portion may include only components that do not come into contact with the fluid. Redundant systems, such as redundant controllers, power sources, motor actuators, and alarms, may be provided. Alternatively or additionally, certain components can be multi-functional, such a microphones and loudspeakers that may be used for both acoustic volume sensing and for other functions and a coil that may be used as both an inductive coupler for a battery recharger and an antenna for a wireless transceiver. Various types of network interfaces may be provided in order to allow for remote control and monitoring of the device.

A surgical console has a receptacle for receiving a surgical fluidics cassette. The receptacle has a light source that transmits light to light pipes in the surgical fluidics cassette. The light pipes transmit light to a light transmissive optical interface surrounded by an opaque frame in the surgical fluidics cassette. The opaque frame is located at a fluid level detection system in the cassette. The system illuminates fluidic connectors on the surgical fluidics cassette without interfering with the fluid level detection system of a surgical console.

Drug delivery reservoir for delivery of a beneficial agent to a user includes a drug delivery reservoir housing having a fluid reservoir defined therein. The drug delivery reservoir housing has a drug delivery reservoir base region. The drug delivery reservoir includes a dip tube extending inside the fluid reservoir. The dip tube includes a tubular wall defining a flow lumen. The tubular wall has at least one aperture defined therein and spaced proximally from a distal end of the tubular wall in fluid communication with the fluid reservoir. The drug delivery reservoir includes an adaptor disposed external to the drug delivery reservoir housing and coupled to a proximal end of the dip tube.

Method and system for controllably administering and/or withdrawing fluid from a patient. In one embodiment, the system may include an infusion needle, a pump adapted to be operably coupled to the infusion needle for creating fluid flow through the infusion needle, and a hands-free switch for activating and/or deactivating the pump.

An intravenous (IV) fluid delivery system include an IV bag and a fluid delivery device. The IV bag is made of many fluidic channels that keep the fluid distributed across the bag such that the bag may be easily and comfortably wrapped around the arm and shoulder of a person. At least some of the fluidic channels have a slanted shape to maximize emptying the contents of the IV bag as the fluid is injected to the patient's vein. The system includes a pump that moves the fluid into a tube and a needle that is connected to a person's vein. The processor repeatedly turns the pump on or off to gradually transfer the fluid from the IV bag into the person's vein. The processor controls the delivery of the fluid based on the patient's biometric data and/or hand movements as measured by the fluid delivery device.

An automated insertion assembly includes a first dermal perforation assembly configured to releasably engage a first subdermal device. A first actuation assembly is configured to drive the first dermal perforation assembly into a user's skin to a first depth and drive the first subdermal device into the user's skin to a second depth. The second depth is greater than the first depth.

A suspension of a therapeutic substance (e.g., embolic beads) dispersed within a liquid can be delivered via a catheter by using a bidirectional pump to rapidly draw the mixture of the therapeutic substance and liquid from an external syringe into an internal reservoir, then rapidly push the mixture back out into the external syringe. The rapid operation of the bidirectional pump mixes the two constituents so that the therapeutic substance is temporarily suspended within the liquid. Then, a low-speed pump is used to inject the mixture out via the catheter. In some embodiments, the parameters of the low-speed pump are controlled so that the fluid exiting the catheter will experience laminar flow. When the therapeutic substance comprises embolic beads, this can advantageously prevent reflux of the embolic beads, which can be dangerous.

A patch-sized fluid delivery device may include a reusable portion and a disposable portion. The disposable portion may include components that come into contact with the fluid, while the reusable portion may include only components that do not come into contact with the fluid. Redundant systems, such as redundant controllers, power sources, motor actuators, and alarms, may be provided. Alternatively or additionally, certain components can be multi-functional, such a microphones and loudspeakers that may be used for both acoustic volume sensing and for other functions and a coil that may be used as both an inductive coupler for a battery recharger and an antenna for a wireless transceiver. Various types of network interfaces may be provided in order to allow for remote control and monitoring of the device.