The present invention relates to an injector for preventing accidental needle sticks comprising:—a cylinder extending along a longitudinal axis, an inner wall and an outer wall, the cylinder having an outlet at an outlet end opposite an actuating end and a finger grip on the outer wall, which finger grip is positioned between the outlet end and the actuating end,—a piston having a piston body and a deformable sealing element, which deformable sealing element abuts the inner wall of the cylinder at an abutting interface and seals an annular gap between the piston body and the inner wall of the cylinder when the piston is inserted in the cylinder,—a needle guard for mounting on the outside of the cylinder from the outlet end or the actuating end, which needle guard comprises a barrel with a mounting end opposite an operating end, the barrel having a slot for receiving the finger grip of the cylinder when the needle guard is mounted on the cylinder, which slot extends from the mounting end towards the operating end, wherein when the needle guard is mounted on the cylinder from the actuating end in a protective position, the barrel extends along the longitudinal axis and projects beyond the outlet end of the cylinder so that when a hypodermic needle is attached at the outlet end, the barrel protects a user from accidental needle sticks.

The present invention discloses a safety syringe and a safety mechanism for use in the safety syringe. In one example, the safety syringe comprises: a barrel having a proximal end, a distal end and a cavity being between the proximal end and the distal end and defining a longitudinal axis, a needle holder extending distally from the distal end; a plunger having a distal portion inserted inside the barrel from the proximal end of barrel and a proximal portion located outside the barrel; a needle having a proximal portion inserted into a needle passage of the needle holder from the distal side of the needle holder and a distal portion located outside the needle holder, the needle being hollow and in fluid communication with the cavity of the barrel; and a safety mechanism mounted at least partially around the needle holder; at an unactuated position of the safety mechanism, the distal portion of the needle is not covered by the safety mechanism; at an actuated position of the safety mechanism, at least distal tip end of the needle is covered by the safety mechanism to prevent accidental contact with the distal tip end of the needle. According to the present disclosure, it is feasible to, upon assembling the syringe, first duly mount the safety mechanism, and then mount the needle. As such, the needle needs to be calibrated only once, and furthermore, the safety mechanism, before being actuated, does not interfere with the needle.

A retractable needle catheter insertion device is provided with a cannula and a needle positioned within the cannula to assist with insertion of the cannula. After insertion of the cannula into a patient, the needle can retract into a protective sleeve that contains the needle in order to reduce the chance that a medical practitioner will be inadvertently stuck by a used needle. The needle is carried by a needle support that is slidably disposed within the sleeve. A spring biases the needle support and needle toward a retracted position, and the device also includes an activation hub that works in conjunction with the needle support to control retraction of the needle. The retraction may be activated manually by the medical practitioner or may be activated automatically. A modular system and method of manufacturing is also provided in which catheters having either manually or automatic retraction can be manufactured using common parts.

Device for dispensing a substance having: a dispensing element through which the substance can be dispensed, a displaceable protective element for the dispensing element, a drive element that is coupled with the protective element and a feedback element which can generate a signal when or after a predefined quantity or the entire quantity of the substance to be dispensed has been dispensed characterized in that the feedback device is coupled with the drive element.

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.

Auto-injector for administering a dose of a liquid medicament includes a housing to contain a syringe with a hollow needle and a stopper for sealing the syringe and displacing the medicament, the housing having a distal end and a proximal end with an orifice to apply against an injection site. A spring means, upon activation, can push the needle from inside the housing through the orifice and past the proximal end, operate the syringe to supply the dose of medicament, and retract the syringe with the needle after delivering the medicament. An activating means can lock the spring means in a pressurized state prior to manual operation and capable of, upon manual operation, releasing the spring means for injection.

An injector includes a trigger mechanism including: a trigger member disposed about an axis having an aperture and a protrusion, and a ram assembly having a ram configured to pressurize a medicament container for expelling a medicament therefrom, the ram assembly further having a trigger engagement member configured to engage the aperture of the trigger member when the trigger member is in a pre-firing condition; an energy source associated with the ram for powering the ram to expel the medicament; and a user-operable firing-initiation member having an aperture engaged with the protrusion of the trigger member and operable for causing an axial translation of the trigger member in a proximal direction from the pre-firing condition to a firing condition in which the trigger engagement member is released from the retaining portion to allow the energy source to fire the ram.

A drug delivery system is disclosed that includes a drug delivery device having a reservoir and a delivery cannula having a proximal end in fluid communication with the reservoir and a distal end to be received within a patient. The drug delivery system may further include one or more sensors coupled to the drug delivery device, a wireless transmitter, and a controller coupled to the one or more sensors and the wireless transmitter. The controller may be configured to use the one or more sensors to determine a condition or an operational state of the drug delivery device, and control the wireless transmitter to wirelessly transmit one or more reports representative of the condition or the operational state of the drug delivery device. A method for use with a drug delivery device is also disclosed.

A needle-based device includes a barrel as a body thereof and a needle. A portion of the needle is received within the barrel and glued thereinto to cause the needle to protrude from the barrel. The needle-based device also includes a needle shield to protect an entire length of the needle protruding from the barrel based on completely encompassing the entire protruding length of the needle in a first state of disuse of the needle-based device. The barrel includes wings on lateral sides of an outer wall thereof. The wings extend perpendicular to a length of the barrel to couple the needle shield to the barrel in the first state of disuse of the needle-based device.

A method includes protecting an entire length of a needle of a needle-based device protruding from a needle mount or a body of the needle-based device in a first state of disuse thereof based on providing a needle shield encompassing the entire protruding length of the needle, and encompassing the needle shield completely in the first state of disuse with an external cap. The method also includes providing a guide element protruding inward from an end of the external cap farthest away from the needle mount or the body of the needle-based device, internal to the external cap parallel to a length of the external cap and through the needle shield such that, in the state of disuse, the guide element at least partially envelops the needle therewithin to prevent significant lateral movement of the needle and prevents the end of the external cap from touching the needle.