An apparatus for determining the volume of fluid dispensed. The apparatus has an acoustic volume sensor that acoustically excites a reference volume and a measurement chamber with a loudspeaker and measures the acoustic response with microphones acoustically coupled to the reference and the measurement chamber. The loudspeaker and sensing microphones are connected to the measurement chamber by separate ports. A detachable dispensing chamber is coupled to the acoustic volume sensor. The volume of the fluid dispensed is determined by a processor based on the acoustic response of the microphones to acoustic excitement by the loudspeaker.

Bodily fluid sample collection systems, devices, and method are provided. The device may comprise a first portion comprising at least a sample collection channel configured to draw the fluid sample into the sample collection channel via a first type of motive force. The sample collection device may include a second portion comprising a sample container for receiving the bodily fluid sample collected in the sample collection channel, the sample container operably engagable to be in fluid communication with the collection channel, whereupon when fluid communication is established, the container provides a second motive force different from the first motive force to move a majority of the bodily fluid sample from the channel into the container.

A biological fluid collection device that is adapted to receive a blood sample is disclosed. The biological fluid collection device includes a housing, a puncturing element transitionable between a pre-actuated position wherein the puncturing element is retained within the housing and a puncturing position wherein at least a portion of the puncturing element extends through the housing, and a cartridge removably connectable to a portion of the housing. After collecting a blood sample, the cartridge is removable from the housing and the cartridge is able to transfer the blood sample to a point-of-care testing device. The biological fluid collection device provides a closed system that reduces the exposure of a blood sample and provides fast mixing of a blood sample with a sample stabilizer.

A lancing device for infant with safety rotating and unlocking push-shooting button is provided. The push-shooting button is exposed and occupies two position attitudes. A first attitude is an insurance lock-out state that the push-shooting button is locked to avoid an undesired trigger before actuation, and a second attitude is a state that leaves away from the first one attitude where the push-shooting button is readily loaded to be launched. Under the insurance lock-out state, the push-shooting button is locked and moves only by a rotation. Firstly, the button is rotated and loaded to a to-be-launch state. Then, the button is pressed inwards and an edge lancing mechanism is actuated with a blade projecting from a lancing opening of the shell to cut and retract back into the shell. The whole blood collecting procedure is finished.

An automated insertion assembly includes a first dermal perforation assembly configured to releasably engage a first subdermal device. A first actuation assembly is configured to drive the first dermal perforation assembly into a user's skin to a first depth and drive the first subdermal device into the user's skin to a second depth. The second depth is greater than the first depth.

A method of dispensing a therapeutic fluid from a line includes providing an inlet line connectable to an upstream fluid source. The inlet line is in downstream fluid communication with a pumping chamber. The pumping chamber has a pump outlet. The method also includes actuating a force application assembly so as to restrict retrograde flow of fluid through the inlet while pressurizing the pumping chamber to urge flow through the pump outlet. A corresponding system employs the method.

A system is disclosed. The system includes a reservoir for containing a fluidic medium, the reservoir including a front surface, a resilient cylindrical flexure portion connected to the front surface, the resilient cylindrical flexure portion comprising an accordion-like structure that is able to expand and contract to change an interior volume within the resilient cylindrical flexure portion, a central passageway within the resilient cylindrical flexure, and a collection chamber connected to the central passageway. Also, a system including a reservoir, a plunger head located within the reservoir, a plunger arm connected to the plunger head, a driving shaft connected to the plunger arm, and a motor connected to the driving shaft, the motor controllable to move the drive shaft in a first motion and a second motion so as to move the advance plunger head and retract the plunger head within the reservoir.

A system for extracting and collecting a sample of a fluid of a user, comprising a sample collection device, comprising a sample container arranged to receive said sample; a cap arranged to cooperate with the sample container and having an incision mechanism movable in the cap by a triggering mechanism; a sealing mechanism; a sample extraction device, comprising a vacuum creation mechanism arranged to create vacuum in a vacuum chamber; and a valve control mechanism arranged to release the vacuum from the vacuum chamber to the sample collection device. The system simplifies collection of a fluid (e.g., blood) sample while keeping a high-quality standard for its analysis, minimizes the risk of injury due to handling the sample, reduces the risk of contamination of the collected sample, is compatible with standard blood analysers of central laboratories, requires minimal action from the user, and can collect large volumes of bodily fluid.

A tail pressing type disposable safety lancet includes a shell, a lancet core, a spring and tail cover. The shell has an elastic arm for locking the lancet core, wherein: the tail cover has an active locking part for locking and the elastic arm has a passive locking part for locking correspondingly; the positions, the fitting time of the active locking part and the passive locking part correlate with the active and passive unlocking parts; when the tail cover is pressed during use, it forces the lancet core to unlock for ejection and puncturing, and the tail cover and elastic arm enter the locking state and cannot be used again. After use of the safety lancet, the tail cover permanently locks on the elastic arm of the shell, ensuring the safety of single use, and the user visually recognizes the tail cover is retracted at the tail of the shell.

A sample collection device for collecting a blood sample of a patient, the sample collection device including a first partially deformable shell and a second at least partially pierceable shell with a pre-packaged vacuum sealed between the first shell and the second shell. The second shell may additionally hold a sample container and an automatic mechanical cutting mechanism including a rotatable cutting blade and an actuator spring, the actuator spring being actuatable by pressing the first shell, thereby releasing and rotating the cutting blade. By pressing the first shell, the pre-packaged vacuum is released to a collection opening of the second shell such that the vacuum effects a suction effect so that blood coming out of the incision created by the rotatable cutting blade leaks into the sample container.