An apparatus having an outer wall that encompasses an interior chamber that holds a predetermined volume of fluid and gas where the gas rises to one end of the interior chamber and the fluid flows to the other end of the interior chamber. The apparatus also has an inlet port that allows for fluid to ingress into the interior chamber and an outlet port that allows for fluid to egress out of the interior chamber.

A wearable infusion pump assembly. The wearable infusion pump assembly includes a reservoir for receiving an infusible fluid and a fluid delivery system configured to deliver the infusible fluid from the reservoir to an external infusion set. The fluid delivery system includes a controller, a pump assembly for extracting a quantity of infusible fluid from the reservoir and providing the quantity of infusible fluid to the external infusion set, the pump assembly comprising a pump plunger, the pump plunger having distance of travel, the distance of travel having a starting position and an ending position, at least one optical sensor assembly for sensing the starting position and ending position of the pump plunger distance of travel and sending sensor output to the controller, and a first valve assembly configured to selectively isolate the pump assembly from the reservoir, wherein the controller receives the sensor output and determines the total displacement of the pump plunger.

A wearable infusion pump assembly. The wearable infusion pump assembly includes a reservoir for receiving an infusible fluid and a fluid delivery system configured to deliver the infusible fluid from the reservoir to an external infusion set. The fluid delivery system includes a controller, a pump assembly for extracting a quantity of infusible fluid from the reservoir and providing the quantity of infusible fluid to the external infusion set, the pump assembly comprising a pump plunger, the pump plunger having distance of travel, the distance of travel having a starting position and an ending position, at least one optical sensor assembly for sensing the starting position and ending position of the pump plunger distance of travel and sending sensor output to the controller, and a first valve assembly configured to selectively isolate the pump assembly from the reservoir, wherein the controller receives the sensor output and determines the total displacement of the pump plunger.

A wearable drug delivery device that can deliver a liquid drug stored in a container to a patient or user is provided. A soft needle or cannula can be placed in fluid communication with the liquid drug and can be coupled to a needle insertion component that provides access to the patient. A drive system of the drug delivery device can expel the liquid drug from the container to the patient through the soft needle or cannula. The wearable drug delivery device can include components for preventing backflow and eliminating air within the liquid drug. As a result, the comfort of the patient can be enhanced and correct drug dosages can be provided when using the drug delivery device.

A wearable drug delivery device that can deliver a liquid drug stored in a container to a patient or user is provided. A soft needle or cannula can be placed in fluid communication with the liquid drug and can be coupled to a needle insertion component that provides access to the patient. A drive system of the drug delivery device can expel the liquid drug from the container to the patient through the soft needle or cannula. The wearable drug delivery device can include components for preventing backflow and eliminating air within the liquid drug. As a result, the comfort of the patient can be enhanced and correct drug dosages can be provided when using the drug delivery device.

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.

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.

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.

Improvements in an infusion unit are disclosed. The infusion unit is a portable pump that can be used with patient that have wrist access or decubital PICC/MID-LINES without the risk of line accidently getting pulled. The infusion unit is in the shape of a conveniently shell that has an appearance of an arm cast. There are no hoses that extend beyond the body of the infusion unit and any vein penetration is completely covered under the body of the infusion unit. The secure enclosed unit prevents unauthorized tampering and entry into the unit. The medication dosing can be remotely monitored, fusion resumed, changed by nursing and the patient. The infusion unit has a wireless connection to a network to adjust medication and monitor vital signs, namely heart rate, O2 level and blood pressure that can be monitored and recorded for review.