The systems, methods and articles described herein are directed to at least one pressure sensor along a downstream fluid line which senses fluid pressure and assists an occlusion detection feature in determining the presence of occlusions in the downstream fluid line. In addition, the system can dynamically adapt the occlusion detection feature based on a delivery of fluid, such as a bolus, in order to prevent the system from creating a false alarm regarding an occlusion of the downstream fluid line.

An infusion pump includes upstream and downstream valves, a pressing surface disposed between the valves which presses on an infusion tube, a pressure sensor which measures pressure within the infusion tube, and a controller. In response to the pressure, the controller determines that there is an occlusion in the infusion tube downstream of the downstream valve, and in response thereto, toggles the upstream valve and the downstream valve. The toggling includes sequentially, (a) while the upstream valve remains closed, isolating a segment of the infusion tube between the valves by closing the downstream valve, (b) while the downstream valve remains closed, reducing pressure in the isolated segment by opening the upstream valve, (c) while the downstream valve remains closed, closing the upstream valve, and (d) while the upstream valve remains closed, reducing pressure downstream of the downstream valve by opening the downstream valve. Other applications are also described.

Force sensing assemblies for an infusion pump are provided. A force sensing assembly includes a processor and an occlusion sensor coupled to the processor. The occlusion sensor is positioned opposed to an occluder valve when the platen is closed. The force sensing assembly measures one or more forces exerted on a fluid tube during a pump cycle. Infusion pump assemblies, methods of operating an infusion pump with a force sensing assembly, systems for controlling an infusion pump and an infusion device are also provided.

The present invention relates to a sensing device, a method of use of a sensing device and a method of manufacture of a sensing device. Embodiments are generally configured as sensor arrays for detecting a pressure change within an infusion line to pre-empt or detect line occlusions in the administration of medical infusions. Generally, embodiments comprise a support component having a support surface for mounting thereon one or more electrically connected switches, a length of expandable tubing for passing a fluid therethrough and are secured to the support surface and in physical contact with the electrically connected switches. The one or more electrically connected switches forms a sensor array adapted to sense expansion of the expandable tubing indicative of pressure changes resulting from line occlusions.

A method that includes receiving, in a medication delivery module, a command to start a medication delivery from a first control module coupled to the medication delivery module, is provided. The command to start the medication delivery is based on clinical information received at the first control module. The method includes recording, in a memory of the medication delivery module, an update of the medication delivery, receiving an indication that the medication delivery module was decoupled from the first control module, and receiving an indication that the medication delivery module has become coupled with a second control module. The method also includes communicating, in response, with the second control module, to update the clinical information. A system and a non-transitory, computer readable medium storing instructions to perform the above method are also provided.

A waste-reducing pumping system and method for delivering a liquid to a patient according to a predetermined therapy protocol is characterized by a stored flush mode routine executable by a processor after an end-of-therapy stoppage of a pumping mechanism, whereby the pumping mechanism is operated to deliver residual liquid remaining in downstream tubing of an administration set to the patient to prevent the residual liquid from being wasted or manually administered at an unsafe rate.

A dialysis machine (e.g., a peritoneal dialysis (PD) machine) can include a pressure sensor mounted at a proximal end of a patient line made of a distensible material that provides PD solution to a patient through a catheter. During treatment, an occlusion can occur at different locations in the patient line and/or the catheter. When an incremental volume of additional solution is provided to the patient line while the occlusion is present, a change in pressure results. The change in pressure depends on the dimensions and the distensibility of the non-occluded portion of the patient line. If the change in pressure, the incremental volume, the properties related to the distensibility of the patient line, and some of the dimensions of the patient line are known, the location of the occlusion can be inferred. The occlusion type can be inferred based on the determined location.

An implantable pump configured to enable tuning of a delivery velocity of a fixed quantity of medicament. The implantable pump including a pump, an accumulator and a valve configured to enable tuning of a delivery velocity of a fixed quantity of medicament, wherein operating the pump with the valve continuously in the open state enables a steady-state delivery of medicament at a first velocity, and wherein closing of the valve enables the pump to at least partially fill the accumulator and subsequent opening of the valve enables the at least partially filled accumulator to dispense medicament, thereby delivering a bolus of medicament at a second velocity, wherein the second velocity is greater than the first velocity.

A method that includes receiving, in a medication delivery module, a command to start a medication delivery from a first control module coupled to the medication delivery module, is provided. The command to start the medication delivery is based on clinical information received at the first control module. The method includes recording, in a memory of the medication delivery module, an update of the medication delivery, receiving an indication that the medication delivery module was decoupled from the first control module, and receiving an indication that the medication delivery module has become coupled with a second control module. The method also includes communicating, in response, with the second control module, to update the clinical information. A system and a non-transitory, computer readable medium storing instructions to perform the above method are also provided.

A distributed infusion pump system is provided with long-term recording of the type of medication, nutrition or hydration, pump output pressure, corresponding infusion flow, infusion flow resistance, and an automatic or manual alarm in the event that thresholds applied to these parameters or their derivatives are exceeded.