A fluid dispenser device having a body (1), and a dispenser head (2) provided with an orifice (3) and that is axially movable relative to the body (1). The body receives a reservoir (10) containing fluid, the reservoir has a hollow tube (11) having a proximal axial opening (12) closed by a stopper (20) adapted to slide in the tube (11). The dispenser head (2) includes a hollow cannula (4) connected at one end to the dispenser orifice (3), and provided at its other end with a perforating tip (5) having an opening (6) for perforating the stopper (20), the opening (6) defining a peripheral edge (7) extending around the opening (6) and includes a distal axial end and a proximal axial end, the distal axial end forming the distal axial end (59) of the perforating tip (5) arranged on the longitudinal central axis (A) of the cannula (4).

Disclosed are applicators and methods injecting of a liquid anesthetic into a dental patient with no or minimal pain. In accordance with one embodiment the applicator is for intraligamentary injection and includes an elongated, thin member having an open distal free formed of a resilient and somewhat conformable material suitable for producing a substantially fluid-tight interface with the anatomic structures at the gingival sulcus to inject the anesthetic therein. In another embodiment the applicator includes a flexible skirt surrounding a sharpened cannula, with the cannula being movable with respect to the skirt. The skirt is arranged to receive the anesthetic to anesthetize the gum, whereupon the cannula can then pierce the gum to inject the anesthetic into the underlying anatomic structure.

The present disclosure relates, according to some embodiments, to a puncture needle that can prevent the occurrence of coring. A puncture needle according to the present disclosure includes a cannula provided with a lumen. The cannula has a blade surface. The blade surface has: a sharp region located on a tip side of the blade surface and provided with a sharp edge on inner and outer circumferences of the blade surface; and a blunt region located on a base end side of the blade surface and provided with a blunt edge on the inner and outer circumferences of the blade surface. A tip of the blade surface is provided with a thick portion formed by a boundary between two surfaces, and the boundary forms an edge.

Disclosed are applicators and methods injecting of a liquid anesthetic into a dental patient with no or minimal pain. In accordance with one embodiment the applicator is for intraligamentary injection and includes an elongated, thin member having an open distal free formed of a resilient and somewhat conformable material suitable for producing a substantially fluid-tight interface with the anatomic structures at the gingival sulcus to inject the anesthetic therein. In another embodiment the applicator includes a flexible skirt surrounding a sharpened cannula, with the cannula being movable with respect to the skirt. The skirt is arranged to receive the anesthetic to anesthetize the gum, whereupon the cannula can then pierce the gum to inject the anesthetic into the underlying anatomic structure.

Disclosed are applicators and methods for injecting a liquid, such as anesthetic, into a patient with no or minimal pain. The applicator includes a coupling and a blade rotatably mounted on the coupling. The coupling is arranged to receive a cartridge in which a cannula is mounted such that the cannula extends through a proximal channel of the coupling and into a distal channel of the blade. The coupling is further arranged to secure the applicator to a source of liquid such that the liquid can be selectively introduced into and through the cannula into the tissue of the patient. The blade is thin enough for atraumatic insertion into a gingival sulcus of the patient.

A needle hypodermic system and method for reducing the incidence of infections due to administering fluids by injection and/or for reducing the risk of surface contamination of sample fluids in humans or animals is provided. The hypodermic needle system may include a first, outer needle with a bore having an open distal end, and a second, inner needle or cannula having a closed distal end and an opening proximal to the distal end which can be rotated or otherwise advanced between open and closed positions. Additionally, the second, inner needle may have a rounded or blunted end and filler material may be used to prevent bacteria or other microbes from being carried by the needles.

A system includes a sensor applicator, a sensor control device arranged within the sensor applicator and including an electronics housing and a sensor extending from a bottom of the electronics housing, and a cap coupled to one of the sensor applicator and the sensor control device, wherein the cap is removable prior to deploying the sensor control device from the sensor applicator.

A multi-beveled needle point geometry for hypodermic needles such as pen needles. A proximal bevel is formed at a first angle of inclination, a pair of intermediate bevels at a second angle of inclination, and a pair of distal bevels at a third angle of inclination and differing angles of rotation. The second angle of inclination is substantially different than the first angle of inclination to define a marked apex at the intersections between the proximal bevel and the intermediate bevels. At least one smooth transition is typically provided between adjacent bevels, between a bevel and an outer surface of the needle, and/or between a bevel and the lumen of the needle.

A system includes a sensor applicator, a sensor control device arranged within the sensor applicator and including an electronics housing and a sensor extending from a bottom of the electronics housing, and a cap coupled to one of the sensor applicator and the sensor control device, wherein the cap is removable prior to deploying the sensor control device from the sensor applicator.

The present invention relates to a needle having safety mechanism for a huber needle assembly in which the safety mechanism comprises a needle hub, a base, a huber needle slidably disposed through the needle hub, a wing holder having two wings at the opposite end of the wing holder, a connector which connects the needle hub and the base for protecting the tip of the huber needle.