The present invention relates to drug delivery systems that cannot be reloaded or reused and further include a passive safety shield system. The drug delivery devices described herein comprise a drug container comprising at least one bellow, wherein the at least one bellow comprises a first surface and an opposing second surface, wherein the first surface is comprised of a first Belleville spring and the opposing second surface is comprised of a second Belleville spring, wherein the second Belleville spring has a higher spring rate than the first Belleville spring; or a drug container extending between distal and proximal ends, and comprises a continuous change in cross section from proximal end to distal end; a needle, wherein the needle is in liquid communication with the drug container; a plunger extending between a proximal end and a distal end, wherein the plunger is in communication with the drug container and where upon axial movement of the punger, the drug container is compressed; a main body extending between a proximal end and a distal end and comprising an inner body and an outer body, wherein the inner body houses the plunger and the drug container and the outer body is capable of sliding over the inner body and extending past the needle; and a spring located between the inner body and the outer body for urging the outer body to slide over the inner body and extend past the needle.

There is provided a protected needle assembly. The assembly includes an outer barrel receiving a needle therethrough. The assembly includes an inner barrel resiliently biased to extend about the needle in a protected needle mode. The inner barrel is retractable into the outer barrel in a first instance to deploy the needle. The assembly includes a locking mechanism actuated upon the inner barrel moving towards the protected needle mode once more. The locking mechanism is configured to inhibit further retraction of the inner barrel thereafter.

The present disclosure relates to an administration mechanism for a medicament delivery device having a movable sleeve, and a delivery member cover having a distal end portion configured to receive the movable sleeve. The delivery member being configured to be linearly displaceable between a first position and a second position relative to the movable sleeve, wherein the distal end portion has an end face defining a guide surface and the movable sleeve has a radially outwards extending first follower structure configured to cooperate with the guide surface when the delivery member cover is moved from the first position towards the second position, causing the movable sleeve to rotate.

A method includes protecting an entire length of a needle of a needle-based device protruding from a needle mount coupled to a body thereof based on providing a needle shield completely encompassing the entire protruding length of the needle in a first state of disuse, and retracting the needle shield in a first direction toward the body of the needle-based device to apply a first force in the first direction to cause the needle to emerge out of the needle shield to prepare the needle-based device for a second state of use. The method also includes transitioning the needle-based device back to the first state of disuse following the second state of use in accordance with applying a second force in a second direction diametrically opposite to the first direction, and providing a lock button to lock the needle shield in the first state of disuse.

A low-profile universal passive protector for an IV catheter includes a connector having a tubular body and a pair of arms pivotally connected thereto. The tubular body defines an end face and the connector includes a cavity extending from the end face. An elongate sheath is snap engageable to the tubular body. A spring is insertable within the connector cavity to extend between at least one of the pair of arms and the elongate sheath when received within the cavity. A slider is moveably coupled to the sheath. The slider includes a flashback chamber formed therein. A hypodermic needle is connected to the slider and is in fluid communication with the flashback chamber. The slider is moveable along the sheath between a first position and a second position, with the hypodermic needle being drawn into the sheath as the slider moves from the first position toward the second position.

An ejection-type safety intravenous needle includes a sheath, a hub, a cannula fixed on the hub, and a base. An accommodation cavity is formed in the base. The hub is fixed in the accommodation cavity, and the cannula is exposed outside of the accommodation cavity. The sheath encloses the cannula, and a bottom of the sheath is located in the accommodation cavity and provided with a first limiting structure. A second limiting structure cooperating with the first limiting structure is provided at a top of the accommodation cavity. An elastic element is provided in the accommodation cavity, and the elastic element abuts against a bottom end of the sheath. A top and a bottom of the base are provided with a first clamping structure and a second clamping structure, respectively. A third clamping structure cooperating with the first clamping structure and the second clamping structure is provided on the sheath.

A syringe safety system may include a sleeve. The sleeve may include a guide track formed in the sleeve. The guide track may have a guide pin retention portion, a travel portion, and a lockout portion. The syringe safety system may include a collar having a guide from an exterior surface of the collar. A spring may extend between and be coupled to the collar and the sleeve. A cap may engage the sleeve. The cap may be configured to retain the guide pin in the guide pin retention portion of the guide tack. When the cap is removed, the spring advances the guide pin into the travel portion of the guide track.

A safety needle assembly includes a housing and a cannula hub connected within a side wall of the housing, a needle connected to the cannula and extending from the cannula hub outward from a proximal end of the housing, and a spring connected with the housing. The assembly includes a barrel connected with the spring and at least partially contained within the housing to least partially cover the cannula hub. The barrel is configured for moving, sliding, traveling, activating, relocating, or transitioning from a first mode in which the barrel is securely retracted and locked at least partially within the housing and the needle extends through an aperture of the barrel and the proximal end of the housing, to a second mode in which the barrel extends from the proximal end and beyond the needle.

the present invention provides a needle system comprising a needle assembly (1, 100, 200, 300) and a drug cartridge (30, 130, 230, 330), the needle assembly (1, 100, 200, 300) comprising a needle hub member (4.1, 104.1, 204.1, 304.1) in which an injection needle (15, 115, 215, 315) is fixedly mounted such that a front needle portion (15f, 115f, 215f, 315f) extends in a distal direction therefrom and a rear needle portion (15r, 115r, 215r, 315r) extends in a proximal direction therefrom, and a skirt member (4.2, 104.2, 204.2, 304.2) extending proximally from the needle hub member (4.1, 104.1, 204.1, 304.1) and defining a skirt cavity (4.9, 104.9, 204.9, 304.9) accommodating the rear needle portion (15r, 115r, 215r, 315r), the skirt cavity (4.9, 104.9, 204.9, 304.9) having a skirt cavity configuration, and the drug cartridge (30, 130, 230, 330) comprising a generally cylindrical body (31, 131, 231, 331) being sealed proximally by a slidable piston (239, 339) and having an outlet end portion defined by a neck (32, 132, 232, 332) and a head (33, 133, 233, 333), the head (33, 133, 233, 333) having a head configuration, wherein the skirt cavity configuration corresponds to the head configuration, providing for a tight fitting of the skirt member (4.2, 104.2, 204.2, 304.2) on the head (33, 133, 233, 333) which renders the rear needle portion (15r, 115r, 215r, 315r) a permanent resident of the outlet end portion.

The present invention provides a needle assembly (1) for a drug delivery device, comprising a needle hub (25) in which a needle (15) is fixedly mounted, the needle (15) extending along a reference axis and comprising a needle body with a lumen and a distal needle end portion adapted for insertion through a skin layer, a needle shield (12) axially displaceable relative to the needle hub (25) between an extended position in which the distal needle end portion is covered and a retracted position in which the distal needle end portion is exposed, the nee-dle shield (12) being biased towards the extended position, and an elastomeric plug member (10) fitted tightly around a portion of the needle (15), the plug member (10) comprising a self-sealing front section (10.4) and being axially displaceable along the needle body be-tween a proximal plug position in which the distal needle end portion is exposed and a distal plug position in which the distal needle end portion is covered and the lumen is sealed by the self-sealing front section (10.4), wherein the needle shield (12) and the plug member (10) comprise mutually interactable engagement members (12.1, 12.4, 10.5) configured to ensure displacement of the plug member (10) from the proximal plug position to the distal plug position in response to a displacement of the needle shield (12) from the retracted posi-tion to the extended position.