To provide a liquid medicine self-injection system that enables patient himself/herself to easily and safely inject (in particular, bolus-infuse) a prescribed amount of liquid medicine for preventing, treating or improving obstetrical pain, in particular, for a painless childbirth. The liquid medicine self-injection system according to the present invention contains a liquid medicine preservation container for storing a liquid medicine, a liquid medicine feeding-out means for feeding out the liquid medicine from the liquid medicine preservation container, and a liquid medicine injection device for allowing the liquid medicine fed out from the liquid medicine preservation container to be self-injected, and is configured to be able to use for preventing, treating or improving obstetrical pain, in particular, for a painless childbirth. Thus, a prescribed amount of liquid medicine can be easily and safely administered to a patient, that is, pregnant woman, in particular, pregnant woman during childbirth, without giving ill effect on an unborn child or using a large-sized device by self-injection at one time.

Modules for housing electronic and electromechanical medical equipment including a system to measure and record administration of one or more IV medications or fluids for IV administration. A system and method for fusing independent measures of the physiological parameters, in some examples using a Kalman filter for each possible combination of sensor measurements.

Embodiments of the present invention are directed to devices, systems and methods for delivering therapeutic fluid (e.g., insulin) into the body, including a skin adherable cradle, for retaining a therapeutic fluid dispenser for delivering a therapeutic fluid to a user.

Examples of fluid delivery drive system and/or pump system that creates a vacuum in a fluid line for drawing and expelling fluid are provided. The vacuum may be created by separating two components that are positioned within the sealed fluid line. Once the two components are separated and the fluid is contained within the volume created between the separated components, the two components may be shuttled within the sealed volume. The movement of the two components can seal off an inlet to the fluid line and then open a pathway to an outlet from the fluid line while ensuring the created volume between the two components is maintained constant. The two components can then be moved back together to expel the fluid from the created volume through the outlet for delivery, for example, to a patient. Other examples are disclosed and described.

A bolus delivery device is provided that comprises a housing and a reservoir defined by an activation dome and a reservoir seat and disposed within the housing for receipt of a volume of a fluid. The bolus delivery device further comprises a bladder disposed in the housing that is in fluid communication with the reservoir for receipt of the fluid from the reservoir; an actuator; an inlet conduit in fluid communication with the reservoir for providing the fluid to the reservoir; and an outlet conduit in fluid communication with the bladder for providing the fluid to a patient. The actuator is in operative communication with the reservoir to initiate a flow of the fluid from the reservoir to the bladder. The bladder expands as the bladder receives the fluid and contracts as the bladder dispenses the fluid. An infusion assembly including a bolus delivery device also is provided.

Bulbs for use with an IV set are described herein. A bulb includes a bulb body and a filter. The bulb body defines an inlet, an outlet, and a bulb volume in fluid communication with the inlet and the outlet. The filter is in fluid communication with the bulb volume. The filter captures particulate from a flow from the inlet to the outlet. The bulb body is deformable to compress the bulb volume and direct back flow from the bulb volume through the filter, agitating particulate captured in the filter, unclogging the filter and allowing for more flow.

IV filters are described herein. An IV filter includes a body, a filter media, and a bulb. The body defines a body volume. The filter media is disposed within the body volume. The filter media defines an inlet portion of the body volume and an outlet portion of the body volume. The filter media permits inlet flow from the inlet portion of the body volume to the outlet portion of the body volume and captures particulate from the inlet flow. The bulb defines a bulb volume in fluid communication with the outlet portion of the body volume. The bulb is deformable to compress the bulb volume and direct back flow from the outlet portion of the body volume through the filter media and into the inlet portion of the body volume, displacing particulate captured in the filter media into the inlet portion of the body volume.

A gear-driven infusion assembly is provided which has a housing, a gear assembly coupled to the housing, a shuttle assembly slidably coupled to the housing and operably coupled to the gear assembly, and a tube enclosure connected to the housing. The tube enclosure is configured to house a primary drug closure such as a syringe. The gear assembly includes a spool assembly having a pinion gear and a drive spool. When the spring rotates the drive spool, the drive spool drives the pinion gear, and the gear assembly drives the shuttle assembly. When the gear assembly drives the shuttle assembly, the shuttle assembly slides longitudinally along the housing. The gear assembly may be spring driven such that a spring rotates the pinion gear about the drive spool. An overspeed protection device is also provided which has a spool assembly including a drive spool.

Apparatus and methods for providing controlled pressure-flow pulses which purge a catheter system with turbulent flow flushing. Accomplishment of such controlled pressure-flow pulses is provided by a variety of inventive devices including a special plunger rod for a conventional syringe, other interactive parts for conventional syringes, an in-line catheter attachable device which automatically generates the controlled pressure-flow pulses and also single pulse, digitally operated devices.

Disclosed is an irrigation system. The irrigation system includes a manual pump. The manual pump can provide pressurized liquid through a tube at an outlet.