A needle protection device and a safety needle assembly are described. The needle protection device comprises a connecting portion and a protection arm rotatable relative to the connecting portion. A pair of holding members are respectively formed on a proximal end portion of the protection arm and the connecting portion and configured to engage with each other in an unretreatable manner. A pair of positioning arms are respectively formed on the proximal end portion of the protection arm and the connecting portion and formed with at least one pair of complementary snap-fitting features. The paired snap-fitting features are configured to engage each other in a separable manner. The needle protection device and the safety needle assembly not only reliably prevents medical instruments from incurring accidental needle-sticks after use and ensures such medical instruments disposable, but also exhibits a simple structure and low costs.

An integrated testing device and method are disclosed. The device includes an integral reservoir for a test fluid, and an actuator, so that the test fluid can be dispensed to facilitate the test.

A disposable blood-taking needle with double-surface cap includes a lancet body with a needle tip, a lancet handle and a lancet cap. The lancet body is fixed inside the lancet handle and the needle tip extends out of the first end of the lancet handle to be inserted into the lancet cap. The body of the lancet cap is a block structure, which includes a first face and a second face. Both the first face and second face are flat and opposed such that when one face faces upwards, the other face faces downwards and the included angle between them in space is less than 45; the first face is provided with a first blind hole and the second face is provided with a second blind hole and both the first blind hole and the second blind hole match the first end of the lancet handle in respect of connection relationship. In the block structure, except the first face and the second face, the other external surfaces are arcuate faces protruding outward and/or angular faces protruding outward.

Disclosed is a replaceable blood lancet device in which a needle unit including a needle carrier and a front slider is used as inserted in a tubular barrel, and the used needle unit or needle carrier is replaced after use. The replaceable blood lancet device minimizes waste of resources by reducing the parts to be discarded in reuse. In addition, the front slider inserted in the barrel is easily loaded and unloaded through the withdrawal grip portion provided in the front slider. Further, an action spring for elastically pushing the needle carrier in a frontward direction, and a rear end cap for supporting the actuation spring to be compressed to generate an elastic force are provided, so that the blood lancet device can perform blood collection based on the elastic force of the spring.

A disposable blood lancet device includes a barrel including a tubular barrel body; a tubular front slider inserted in the barrel; a carrier; a needle carrier; an actuation spring elastically pushing the needle carrier in the frontward direction; and a trigger portion coming into contact with the elastic transformation portion upon the rearward movement of the needle carrier and elastically transforming the elastic transformation portion inwards in the radial direction so that the interlocking holding projection can be separated inwards from the rear end of the front slider to propel the needle carrier frontwards.

A reagentless whole-blood analyte detection system that is capable of being deployed near a patient has a source capable of emitting a beam of radiation that includes a spectral band. The whole-blood system also has a detector in an optical path of the beam. The whole-blood system also has a housing that is configured to house the source and the detector. The whole-blood system also has a sample element that is situated in the optical path of the beam. The sample element has a sample cell and a sample cell wall that does not eliminate transmittance of the beam of radiation in the spectral band.

An apparatus includes an introducer defining an inner volume, a catheter, and a guide member. The having a proximal end portion and a distal end portion, with the catheter defining a lumen extending through the proximal end portion and the distal end portion of the catheter, and with the catheter configured to move between a first position, in which the catheter is disposed within the introducer, and a second position, in which at least the distal end portion of the catheter is distal to the introducer. The guide member is coupled to the introducer, with the guide member defining a lumen. A portion of the catheter is received within the lumen of the guide member when the catheter is in the first position, and the distal end portion of the catheter is distal to the guide member when the catheter is in the second position.

Blood collection devices having a retractable needle are provided. Activation of the retraction mechanism causes release of propellant from a propellant chamber, which drives a retraction assembly carrying the needle into a body of the device.

A one-step, single-handed device for obtaining small, precise volumes of fluid from animals is able to quickly and easily draw a fluid sample. The device comprises an extraction component and a collection component that are coupled together and disposed along a grip handle. The user manipulates the device so as to initiate the extraction of the fluid, and then collect the fluid in a component that can quickly and easily be removed from the grip handleallowing the handle to be re-loaded and used again and again. The extraction component may comprise a hypodermic needle and the collection component may comprise a pre-calibrated pipette, where the pipette is positioned directly behind the needle and will thus draw the extracted fluid into a pre-sized chamber within the pipette.

An integrated testing device and fluid module are disclosed, as well as a method of manufacture. Fluid module contains a reservoir containing a test fluid, and a control vessel. The reservoir discharges test fluid into the control vessel, which discharges the test fluid in a controlled way to a test component.