A system and method for determining the fill volume of a fluid chamber includes a fluid injector, at least one fluid chamber in fluid communication with the fluid injector, one or more sensors positioned relative to the at least one fluid chamber and configured to detect a position of a liquid-gas interface of the fluid contained in the at least one fluid chamber, and at least one processor in communication with the sensors and the fluid injector, and configured to: determine the position of the liquid-gas interface of the fluid, calculate the volume of fluid in the at least one fluid chamber based on the position of the liquid-gas interface, and at least one of: i) display the volume of the fluid; ii) enable the fluid injector to perform an action; and iii) disable the fluid injector from performing the action.

A vasculature navigation system may include a dilator having a proximal end and a distal end located opposite the proximal end, the dilator comprising a guidewire lumen extending between the proximal end and the distal end, the dilator defining a proximal portion and a distal portion located opposite the proximal portion. In some embodiments, the vasculature navigation system also includes an access port located at the proximal end of the dilator, a distal port located at the distal end of the dilator, and a hemostasis valve coupled to the proximal portion of the dilator. The hemostasis valve may be configured to control fluid flow between the proximal portion and the distal portion. In some embodiments, a flush port is coupled to the proximal portion of the dilator and located distal to the hemostasis valve, and the flush port is coupled to a fluid supply source.

A drip chamber insert may include an elongate body portion comprising an upper surface, and a base portion positioned downstream of the elongate body portion for coupling to a drip chamber. The base portion may have an upper surface and a lower surface defining an outlet orifice of the drip chamber insert. The drip chamber insert may further include a first chamber and a second chamber. The first chamber may be disposed in the elongate body portion and fluidly coupled to the upper surface via an inlet orifice and to the outlet orifice via the base portion. An anti-run-dry membrane may be disposed on the upper surface of the elongate body portion extending over the inlet orifice. The second chamber may be disposed in the elongate body portion extending from the upper surface to the base portion. A low flowrate orifice may extend from a base of the second chamber into the base portion for fluidly coupling the second chamber with the outlet orifice.

A vasculature navigation system may include a dilator having a proximal end and a distal end located opposite the proximal end, the dilator comprising a guidewire lumen extending between the proximal end and the distal end, the dilator defining a proximal portion and a distal portion located opposite the proximal portion. In some embodiments, the vasculature navigation system also includes an access port located at the proximal end of the dilator, a distal port located at the distal end of the dilator, and a hemostasis valve coupled to the proximal portion of the dilator. The hemostasis valve may be configured to control fluid flow between the proximal portion and the distal portion. In some embodiments, a flush port is coupled to the proximal portion of the dilator and located distal to the hemostasis valve, and the flush port is coupled to a fluid supply source.

Keep vein open (KVO) infusion flow control devices are provided. The KVO infusion flow control device couples to intravenous (IV) tubing and includes a flow controller that provides a full open fluid flow rate through an outlet portion of the IV tubing when the flow controller is in an open position, and a KVO fluid flow rate through the outlet portion of the IV tubing when the flow controller is in a KVO position. Visual indicators are disposed on the KVO infusion flow control device.

Keep vein open (KVO) infusion flow control devices are provided. The KVO infusion flow control device couples to intravenous (IV) tubing and includes a flow controller that provides a full open fluid flow rate through an outlet portion of the IV tubing when the flow controller is in an open position, and a KVO fluid flow rate through the outlet portion of the IV tubing when the flow controller is in a KVO position. Visual indicators are disposed on the KVO infusion flow control device.

A system for providing multiple infusions to a patient (P), the system comprises a multiplicity of infusion devices (10) for administering a multiplicity of medical fluids through an infusion line (102) of an infusion set (103) to the patient (P), and a control device (2) for controlling the multiplicity of infusion devices (10). Herein, the control device (2) comprises a multiplex module (22) configured to multiplex the multiplicity of medical fluids for a multiplexed administration of the medical fluids through said infusion line (102) of the infusion set (103), the multiplex module (22) comprising a scheduling module (222) configured to define at least two packets, each packet comprising at least one medical fluid out of the multiplicity of medical fluids, and to arrange the at least two packets in a sequence for administration of the medical fluids of the at least two packets. In this way a system for providing multiple infusions to a patient is provided which allows for an efficient, yet reliable administration of multiple infusions while at the same time reducing the risks for errors. An advantage of multiplexing is reduction of the number of lumens with associated reduction of infection risks and discomfort.

Keep vein open (KVO) infusion flow control devices are provided. The KVO infusion flow control device couples to intravenous (IV) tubing and includes a flow controller that provides a full open fluid flow rate through an outlet portion of the IV tubing when the flow controller is in an open position, and a KVO fluid flow rate through the outlet portion of the IV tubing when the flow controller is in a KVO position. Visual indicators are disposed on the KVO infusion flow control device.

Disclosed are methods and apparatus for determining analyte concentration in a sample such as bodily fluid. Systems and methods disclosed herein can also include a treatment dosing system to infuse or inject a treatment drug (e.g., insulin or glucose) and provide glycemic control. The dose of the treatment drug may be based on the concentration of th4e analyte or the average value for the concentration of the analyte and/or the rate of change of the value of the concentration of the analyte.

A system for providing multiple infusions to a patient (P), the system comprises a multiplicity of infusion devices (10) for administering a multiplicity of medical fluids through an infusion line (102) of an infusion set (103) to the patient (P), and a control device (2) for controlling the multiplicity of infusion devices (10). Herein, the control device (2) comprises a multiplex module (22) configured to multiplex the multiplicity of medical fluids for a multiplexed administration of the medical fluids through said infusion line (102) of the infusion set (103), the multiplex module (22) comprising a scheduling module (222) configured to define at least two packets, each packet comprising at least one medical fluid out of the multiplicity of medical fluids, and to arrange the at least two packets in a sequence for administration of the medical fluids of the at least two packets. In this way a system for providing multiple infusions to a patient is provided which allows for an efficient, yet reliable administration of multiple infusions while at the same time reducing the risks for errors. An advantage of multiplexing is reduction of the number of lumens with associated reduction of infection risks and discomfort.