A fluid delivery system includes a control interface and multiple unique loading guides. The control interface of the fluid delivery system receives a fluid pump assembly. The multiple loading guides are retractable from the fluid delivery system to retain and control movement of a facing of the fluid pump assembly to contact the control interface on the facing of the fluid delivery system. In one configuration, the control interface is disposed in a cavity of the fluid delivery system; the multiple loading guides are disposed at locations in proximity to the cavity. The multiple loading guides slidably retract in unison to support substantially orthogonal insertion of the fluid pump assembly into the cavity of the fluid delivery system.

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 dimensions and a distensibility of a non-occluded portion of the patient line. If the change in pressure, the incremental volume, properties related to the distensibility of the patient line, and some of the dimensions of the patient line are known, a location of the occlusion can be inferred. An occlusion type can be inferred based on the location of the occlusion.

An occlusion detection device detects an occlusion of a flexible fluid path on either of upstream and downstream sides of a pump mechanism, the pump mechanism transporting a liquid through the fluid path by elastically deforming the fluid path. The occlusion detection device is provided with: an occlusion sensor that is disposed on the downstream side of the pump mechanism and detects an internal pressure of the fluid path during a liquid transporting operation of the pump mechanism; and a data processing circuit that analyzes on which side of the upstream and downstream sides of the pump mechanism the occlusion of the fluid path occurs, based on a change of the internal pressure of the fluid path detected by the occlusion sensor and outputs an analysis result.

An adipose tissue (AT) transfer system includes, on the aspiration side, an aspiration cannula, an aspiration pump, a container, and flexible tubing connecting the aspiration cannula to the container. On the reinjection side, the system includes a reinjection cannula, flexible tubing connecting the inlet of the reinjection cannula to the container, and a reinjection pump imposing positive-displacement pumping action on the flexible tubing and causing movement of AT in a pulsed mode. The aspiration pump operates to continually supply harvested AT to the second flexible tubing while the reinjection pumps causes continuous or pulsed deposition of the AT at injection site. To ensure that internal pressure and/or flow of the AT through a channel of delivery of the AT to the reinjection site does not exceed a predetermined value, the system contains an external pressure sensor configured to measure such internal pressure in absence of a part that is in direct contact with the AT.

A system, method or apparatus to detect abnormalities in delivery of a fluid may include an infusion apparatus that is controllable to cause one or more perturbations in a fluid flow (e.g., each of the one or more perturbations in the fluid flow may result in a measurable perturbed force response). A force signal representative of the perturbed force response may be used to determine an integrated perturbed force response value (e.g., using integration of the force signal over a perturbation time period; the integrated perturbed force response value being representative of an additional force caused by the at least one perturbation over an equilibrium force). A ratio between the integrated perturbed force response value and a normalizing value (e.g., based at least on a maximum perturbation force of the perturbed force response) may be used to determine if fluid flow is occluded.

An infusion pump assembly includes a reservoir assembly configured to contain an infusible fluid. A motor assembly is configured to act upon the reservoir assembly and dispense at least a portion of the infusible fluid contained within the reservoir assembly. Processing logic is configured to control the motor assembly. A primary power supply is configured to provide primary electrical energy to at least a portion of the processing logic. A backup power supply is configured to provide backup electrical energy to the at least a portion of the processing logic in the event that the primary power supply fails to provide the primary electrical energy to the at least a portion of the processing logic.

The present invention relates to a dosing mechanism including: a body; and a pump unit (3) that is attached to the body, in which the pump unit (3) includes: a pump (31) in which a volume of a solution feeding part therein repeats expansion and shrinkage, thereby sucking a medicine from a medicine vessel and discharging the medicine to a patient; a suction-side pipe (333) that extends from the pump (31) toward the medicine vessel; a discharge-side pipe (343) that extends from the pump (31) toward the patient; a relief pipe (35, 35a) whose one end (351) is connected to the discharge-side pipe (343) while the other end (352) is located in a part whose pressure is lower than pressure inside the discharge-side pipe when the medicine is dosed; and a relief pipe on-off valve (36, 36a) that opens and closes the relief pipe (35, 35a), a use method of a dosing mechanism, and a pump unit for a dosing mechanism.

It may desirable to monitor or control a pump remotely. For example, the pump may be positioned near the patient, with remote control or monitoring of the pump occurring in a control room. In one exemplary embodiment, the pump is used in an MRI environment. In another exemplary embodiment, the pump is used in a hyperbaric chamber. The pump may monitor one or more physiological parameters and transmit them to the remote. The pump may also transmit information relating to the pump's operation. The pump may send the device and/or physiological data using one or more packets. The packets may consist of low priority sequential packets and high-priority asynchronous packets. The high-priority packets may enable the real-time monitoring of a patient's heart beat or other physiological parameter.

The present invention relates to a dosing mechanism including: a body (2); and a disposable portion (3) that is removably attached to the body (2), in which the disposable portion (3) includes: a pump that sucks a medicine from a medicine vessel and discharges the medicine to a patient; a suction-side tube (33) that extends from the pump toward the medicine vessel; a discharge-side tube (34) that extends from the pump toward the patient; and a connector (331, 341) that is located at a front end of at least one of the suction-side tube (33) and the discharge-side tube (34), and the body (2) includes a sensor (24) in a position corresponding to the suction-side tube (33) or the discharge-side tube (34) attached to the body (2).

An ambulatory infusing device including a housing, a reservoir defining an interior volume, a wall associated with the housing and having an inner surface that faces into the reservoir interior volume, and a filter assembly. The filter assembly may include a filter assembly housing with a housing filter portion having a free end associated with the inner surface of the wall and a filter supporting volume that extends to the free end of the housing filter portion, and a filter located within the filter supporting volume that extends to at least the free end of the housing filter portion.