A unilateral-driven patch-type drug infusion device, includes: an infusion unit, which includes a drug storage unit; a screw connected to a piston and a driving wheel provided with wheel teeth, respectively, the driving wheel drives the screw to move by rotation, pushing the piston forward; at least one driving unit cooperating with the driving wheel, the driving unit includes at least one driving portion; a power unit and a reset unit coupled to the driving unit, and an infusion tube structure, which includes a base and an infusion needle, and the base includes an initial position, a working position, and an intermediate position. This infusion device can output controllable and stable driving force, which eliminates safety hazards and improves user experience.

A unilateral-driven patch-type drug infusion device, includes: an infusion unit, which includes a drug storage unit; a screw connected to a piston and a driving wheel provided with wheel teeth, respectively, the driving wheel drives the screw to move by rotation, pushing the piston forward; at least one driving unit cooperating with the driving wheel, the driving unit includes at least one driving portion; a power unit and a reset unit coupled to the driving unit, and an infusion tube structure, which includes a base and an infusion needle, and the base includes an initial position, a working position, and an intermediate position. This infusion device can output controllable and stable driving force, which eliminates safety hazards and improves user experience.

A vascular access device may include a blood circuit having an arterial blood line and a venous blood line. The venous blood line is connected to a first access needle and the arterial blood line is connected to a second access needle. The venous blood line is connected to an access component affixed to the second access needle and configured such that when the second access needle is used to infuse blood into a patient, the access component is positioned to withdraw blood and convey it into the venous line. The withdrawn blood may also be conveyed to an air detector to detect withdrawal of the second access needle.

A syringe is described with a plunger assembly that is adapted to have a dispensing stroke sized to dispense a fluid therapeutic product from the syringe without dispensing any air or headspace. The syringe includes a plunger rod having a stop feature that stops a dispensing stroke of the plunger rod at a distance corresponding to a level of air or headspace within the syringe avoiding additional air dispensing steps from a healthcare provider.

A syringe is described with a plunger assembly that is adapted to have a dispensing stroke sized to dispense a fluid therapeutic product from the syringe without dispensing any air or headspace. The syringe includes a plunger rod having a stop feature that stops a dispensing stroke of the plunger rod at a distance corresponding to a level of air or headspace within the syringe avoiding additional air dispensing steps from a healthcare provider.

A semi-automated veterinary medicine delivery device may sense whether and how much air may have been incorporated into a dose delivered to an animal. The device may also sense an incomplete injection in some cases and may cause a second dose to be administered to make up for the incomplete dose. The device may compare a position sensor on a syringe in combination with a current sensor on a motor attached to the syringe to detect any abnormalities. In the case of an improper dose, the device may alert the user and administer a second dose.

An injection syringe for injecting a first injectable product into a body injection site of an individual, includes a first barrel containing a first product, a first syringe barrel containing the first injectable product, a first plunger displaceably mounted in the first syringe barrel; a hollow needle to be inserted into the body injection site; an adapter connected to the first syringe barrel and the needle, and a verification device to ensure that, when the first injectable product is injected, the hollow needle is not introduced into a blood vessel. The verification device includes a second syringe barrel containing a second product and connected to the adapter and a second plunger displaceably mounted in the second syringe barrel to cause a depression at the distal end of the hollow needle.

An injection syringe for injecting a first injectable product into a body injection site of an individual, includes a first barrel containing a first product, a first syringe barrel containing the first injectable product, a first plunger displaceably mounted in the first syringe barrel; a hollow needle to be inserted into the body injection site; an adapter connected to the first syringe barrel and the needle, and a verification device to ensure that, when the first injectable product is injected, the hollow needle is not introduced into a blood vessel. The verification device includes a second syringe barrel containing a second product and connected to the adapter and a second plunger displaceably mounted in the second syringe barrel to cause a depression at the distal end of the hollow needle.

Described is an infusion fluid air eliminating device comprising a body having a fluid passage region with a fluid inlet and a fluid outlet so as to define a fluid path from the fluid inlet to the fluid outlet, and a hydrophobic membrane, wherein the hydrophobic membrane covers the fluid passage region along a portion between the fluid inlet and the fluid outlet in a substantially sealed arrangement relative to the environment wherein there is provided a cavity on the side of the membrane facing the fluid passage region, and a pressurization unit is provided to pressurize the membrane against the fluid passage region such that the membrane essentially closes the cavity between the fluid inlet and the fluid outlet at one location when the pressure in the fluid is below a predetermined threshold value, and opens when the pressure in the fluid is not below the threshold value.

The present invention discloses a sterile PRP separation kit that has compartmentalized container having a cover that allows for a stage-specific exposure of sterile components of the sterile PRP separation kit housed within stage-specific compartments to a non-sterile environment commensurate with a specific stage of operation of a separation process of PRP. The sterile PRP separation kit includes a PRP tube with segregated portals for injection of blood into the PRP tube, aspiration of PRP from the PRP tube, and for maintaining an interior pressure of the PRP tube at equilibrium with ambient pressure during both injection and aspiration.