A syringe includes a barrel having a distal end, a proximal end, and a sidewall extending therebetween along a longitudinal axis. At least one engagement member protrudes from a terminal portion of the sidewall in a proximal direction along the longitudinal axis. The at least one engagement member tapers axially in a direction from the distal end toward the proximal end. The at least one engagement member is configured for engagement with a locking mechanism of a fluid injector to releasably lock the syringe with the fluid injector. A taper of the at least one engagement member is configured to rotationally guide the syringe into alignment with the locking mechanism and axially eject the syringe upon rotation of the syringe. The locking mechanism operatively engages the at least one engagement member regardless of an orientation of the syringe about the longitudinal axis relative to the injector.

A glass syringe barrel is provided that has an at least partially conically shaped upper portion and a longitudinal axis. The glass syringe barrel has a top end through which a liquid can be ejected and a bottom end into which a plunger stopper can be pushed. The glass syringe barrel includes, in a direction from the top end to the bottom end, a cone, a shoulder region, and a body region. The shoulder region has and outer contour that has a concave and substantially circular arc-shaped area c.sub.1 with an outer radius r.sub.1. The outer contour of the glass syringe barrel in the shoulder region is defined by a certain minimum value the radius of curvature.

An assembly for an autoinjector device, the assembly including a syringe support for supporting a syringe by limiting forward axial movement of the syringe relative to the syringe support, and a guard element attachable to the syringe support by an attachment so that the guard element is axially restrained both axially forwardly and axially rearwardly relative to the syringe support by the attachment. Forwardly directed axial loads received by the guard element are transmitted to the syringe support via the attachment.

An adapter for single-handed operation of a syringe includes a clip having a pair of arcuate legs that straddle at least half of an outer diameter of a barrel of a syringe, the clip having an upper opening. The adapter also includes an integrated structure including an extension spine that extends in an axial direction and outside of the barrel of the syringe, a forward flange disposed at a first end of the extension spine and having arcuate legs that straddle at least half of the outer diameter of the barrel of the syringe, and a support that that is disposed on an opposite end of the extension spine and is positioned adjacent to a thumb press of a plunger rod of the syringe.

Examples herein provide a syringe comprising a fluid reservoir and a male connector comprising a fluid flow channel in fluid communication with the fluid reservoir. The male connector including a male luer having a tapered sealing surface configured to mate with a female tapered surface of a female connector to form a substantially fluid-tight seal. The male luer has a distal tip with a recess defined by a recess surface that is distal to the tapered sealing surface. A water-soluble antimicrobial composition is disposed on the recess surface. The male luer is configured such that, when the male connector is mated with a female connector to form a substantially fluid-tight seal, a cavity is formed between the female tapered surface and the recess surface.

A syringe-shaped spraying device includes: a syringe-shaped spraying device main body including a barrel that stores a liquid medicine, a plunger having a front end inserted in the barrel with a gasket being attached to the front end, and a nozzle that is provided with a spraying hole for spraying the liquid medicine and that is connected to a front end of the barrel; a vial adapter having a transfer needle to pierce a vial that stores a liquid medicine so as to suction the liquid medicine; and a connection adapter that is attached to the syringe-shaped spraying device main body and that connects the vial adapter to the syringe-shaped spraying device main body.

To be able to prevent a situation in which, in percutaneous dilational tracheostomy, the guide catheter already inserted into the trachea can kink, a device for percutaneous dilational tracheostomy is disclosed which has a puncture needle, a guide catheter and a guidewire. The puncture needle has a ground tip at its distal end. The maximum external diameter of the puncture needle is smaller than the minimum internal diameter of the guide catheter, and the puncture needle is insertable so far into the guide catheter that the ground tip of the puncture needle protrudes beyond the distal end of the guide catheter. The maximum diameter of the guidewire is smaller than the minimum internal diameter of the puncture needle, with the result that the guidewire can be guided through the puncture needle such that its end protrudes beyond the ground tip of the puncture needle.

The present disclosure relates to a therapeutic agent delivery device with anti-roll features. In one embodiment, a therapeutic agent delivery device may include a tubular body including a first end portion, a second end portion, and a lumen extending between the first end portion and the second portion. An outer surface of the tubular body includes a first opening in communication with the lumen. The outer surface of the tubular body further may include a ledge extending around a periphery of the first opening, and a portion of the ledge closest to the second end portion of the tubular body may be shaped as an arrowhead. The therapeutic agent delivery device also may include a cap configured to engage the second end portion of the tubular body, which may include a curved sidewall extending radially outward. The curved sidewall may include a protrusion.

The present disclosure is directed to a device for delivering an antimicrobial composition into a medical device. Some embodiments disclosed herein provide a method for preventing infection and microbial ingress in medical device connections. The device includes a male connector with a distal tip and a recess at the distal tip. The surface of the recess includes an antimicrobial composition. In certain implementations a male luer comprises a tapered sealing member further comprising a recess containing chlorhexidine acetate.

In a syringe, which is a prefilled syringe, when a cap body is attached to a cylindrical portion, a first sealing section is compressed radially inward by an inner peripheral surface constituting an opening of the cylindrical portion, thereby sealing a distal end section of a flow path in a liquid-tight manner, and a second sealing section is compressed radially inward by an inner peripheral surface of a proximal end section of the cylindrical portion, thereby sealing a proximal end section of the flow path in a liquid-tight manner.