An infusion tube system and a method for manufacture are provided. An infusion tube system including an infusion tube and a connector attached to the infusion tube at an end of the infusion tube is disclosed. The connector has a proximal end and includes a connector body extending from a distal end to a proximal end along a center axis and defining a cavity. The connector body includes an end wall with an inner surface, and at least one vent opening, and a sidewall extending from the end wall along the center axis with an inner and outer surface. The connector includes a membrane covering the at least one vent opening, the membrane being welded to the inner surface of the end wall along at least one welding seam including a first welding seam such that the membrane covers and seals the at least one vent opening.

The present invention discloses an anti-bubble infusion drip chamber. The anti-bubble infusion drip chamber comprises a drip chamber main body; the drip chamber main body has an upper portion and a lower portion, namely a drip chamber portion arranged on the upper portion and a filtering portion arranged on the lower portion; the filtering portion is provided with a liquid storage cavity communicated with an inner cavity of the drip chamber portion, and a liquid medicine filter and an air filter which are arranged on two sides of the liquid storage cavity; a liquid medicine flow channel is arranged on the side wall of the filter and is provided with a liquid inlet and a liquid outlet; the liquid inlet is formed above the liquid outlet; a liquid medicine filter membrane is arranged between the liquid inlet of the flow channel and the liquid storage cavity; and an air filter is arranged on the drip chamber main body on at least one side of the filter membrane. A horizontally-placed liquid medicine filter membrane in the traditional drip chamber can cause unsmooth flow of liquid medicine due to surface tension of the liquid medicine and accumulation of impurities. By making an improvement on the drip chamber, the liquid medicine filter membrane is vertically or obliquely arranged, so that on one hand, the impurities can be prevented from being accumulated on the surface of the filter membrane, and on the other hand, the surface tension of the liquid medicine can be destroyed.

An air venting device may include an adapter comprising a tubular body having a hollow interior defining a fluid flow path, and a vent plug detachably coupled to at least a portion of the tubular body. The vent plug may include an inner circumferential surface defining an internal chamber of the vent plug, and the fluid flow path of the adapter may fluidly communicate the adapter with the internal chamber of the vent plug. The vent plug may further include a superabsorbent polymer material disposed in the internal chamber. The superabsorbent polymer material may be configured to (i) absorb a liquid entering the internal chamber from the fluid flow path, and (ii) expand in volume as the liquid is absorbed into the superabsorbent polymer material. Air entrained in the liquid entering the internal chamber may be vented to an exterior of the air venting device via the vent plug.

Embodiments of the present disclosure relate to techniques, processes, devices or systems for pump devices for providing a fixed volume of fluid, which is delivered and refilled within one pumping cycle. In one approach, a wearable drug delivery device may include a reservoir configured to store a liquid drug, and a drive mechanism coupled to the reservoir for receiving the liquid drug. The drive mechanism may include a housing defining a chamber, the housing including an inlet valve operable to receive the liquid drug and an outlet valve operable to expel the liquid drug from the chamber, and a resilient sealing member within the chamber. The drive mechanism may further include a shape memory wire coupled to the resilient sealing member, wherein the shape memory wire is operable to bias the resilient sealing member within the chamber.

Embodiments of the current disclosure are directed toward systems, devices and methods for diabetes management. In particular, the present disclosure relates to devices and methods for dispensing insulin to a patient. A portable fluid infusion device, comprising a disposable part (DP) and a reusable part (RP) is disclosed. The DP comprises a first reservoir and a second reservoir, the second reservoir less than or equal to the first reservoir in length, while the RP comprises a first compartment configured to receive the first reservoir, a second compartment configured to receive the second reservoir and a gasket for sealing a junction between the second reservoir and the second compartment upon connection of the RP and the DP.

An air filter device for medicinal liquid injection in which a medicinal liquid channel is formed includes: a housing having an air passage that diverges from the medicinal liquid channel and is connected to outside; a hydrophilic boundary filter disposed in the medicinal liquid channel and dividing the medicinal liquid channel into a first channel at an upstream side and a second channel at a downstream side; and a hydrophobic air-passing filter disposed at a boundary between the air passage and the first channel.

An attachment band for a fluid delivery apparatus includes an annular body having a wall defining a hollow inner space, an adjacent pair of attachment apertures extending through the wall, and an indicator aperture extending through the wall opposite the pair of attachment apertures. The indicator aperture includes an indicator portion that is configured to present an indication to a user of the fluid delivery apparatus of a tightness of the attachment band. A first strap extends radially outward from the annular body of the attachment band and is substantially aligned with the attachment apertures. A second strap extends radially outward from the annular body and is substantially aligned with the indicator aperture.

In some embodiments, a housing can define a reservoir. A lower cap can be coupled to the housing and define an outlet, and an upper cap can be coupled to the housing and can define an inlet. The upper cap can include an extending portion extending laterally a distance beyond an outermost extending portion of the lower cap relative to a central axis of the housing such that, when the lower cap and the extending portion of the upper cap contact a horizontal surface, the central axis of the housing is transverse to the surface and a sealing member is configured to sealingly engage a sealing surface of a valve seat prior to a liquid fluid level within a reservoir decreasing below a minimum threshold fluid level.

A gas elimination apparatus and a method for use in an intravenous delivery system are provided. The apparatus includes a fluid inlet coupling a fluid flow into a liquid chamber, a fluid outlet protruding into the liquid chamber, and a flow diversion member proximal to the fluid outlet. The flow diversion member configured to block a direct flow between the fluid inlet and the fluid outlet. The apparatus includes a membrane separating a portion of the liquid chamber from an outer chamber and a gas venting valve fluidically coupling the outer chamber with the atmosphere. The flow diversion member may be mechanically supported by at least one strut or elongate member extending along a flow direction into the liquid chamber.

An infusion tube system and a method for manufacture are provided. An infusion tube system including an infusion tube and a connector attached to the infusion tube at an end of the infusion tube is disclosed. The connector has a proximal end and includes a connector body extending from a distal end to a proximal end along a center axis and defining a cavity. The connector body includes an end wall with an inner surface, and at least one vent opening, and a sidewall extending from the end wall along the center axis with an inner and outer surface. The connector includes a membrane covering the at least one vent opening, the membrane being welded to the inner surface of the end wall along at least one welding seam including a first welding seam such that the membrane covers and seals the at least one vent opening.