A cannula capture mechanism is described herein. The capture mechanism may include an inner housing, outer housing, and a cannula. The outer housing may be configured to move between a compressed and a decompressed state. An outer surface of the inner housing may include one or more interlock components. When the cannula is exposed from a distal end of the inner housing, the one or more interlock components may interact with one or more interlock surfaces formed in another surface of the catheter device. When the cannula is retracted proximally within the inner housing, the inner housing may contract radially inward causing the one or more interlock components to be separated from the one or more interlock surfaces and the outer housing to move to the decompressed state and extend distally over a distal portion of the inner housing.

A system for serially injecting liquids includes a syringe body, proximal and distal stopper members disposed in the syringe body, a first liquid in a distal chamber, a second liquid in a proximal chamber, a plunger member, and a needle hub assembly coupled to a distal needle interface of the syringe body. The plunger member includes a needle retention feature disposed in a plunger interior, an energy-storage member disposed in the plunger interior, and an energy-storage member latching member disposed in the plunger interior. The needle assembly includes a needle having a needle proximal end feature, a hub, and a needle latching member configured to couple the needle to the hub. Manipulating the plunger member to insert the proximal stopper member distally relative to the syringe body initially expels the first liquid, then the second liquid. The needle is at least partially retractable into plunger interior.

This invention relates to a method of identifying an accurate dosage of medicine in a dosage chamber of a syringe including the steps of providing an accurate dosage of a detailed single dosage medicine for insertion into a dosage chamber of a syringe; identifying the accurate dosage of medicine in the dosage chamber by retaining a notifier of the accurate dosage; securing the notifier with the syringe wherein the accurate dosage of medicine in a dosage chamber of a syringe is shown by the details on the notifier when secured with the syringe and allowing usage of the syringe to dispense the accurate dosage.

An injector such as a needle-type autoinjector having a flexible flange disposed at an injection end of the injector for stretching or pinching the skin of the injection site. The flexible flange may be removably attached to the injector or integrated into the injector during manufacturing. Further, an injector having a palm button disposed at an activation end of the injector for activating an injection cycle of the injector. The palm button may be removably attached to the injector or integrated into the injector during manufacturing. Still further, a holding device for one-handed operation of an injector, the holding device having a sleeve and at least one hand rest coupled to the sleeve, the sleeve and hand rest providing ergonomic holding and operation of the injector. Still further, autoinjector needle shield having an enlarged, rounded lip for contacting the skin at the injection site.

The single-use safety syringe having a manual and/or automatic retracting needle preventing re-use thereof comprises a needle, a piston with a tightening seal and a cylindrical body having, at an end thereof, a connector provided with a calibrated attaching hole for the needle and open, at another end thereof, for inserting the piston, comprising, internally of the cylindrical body, a separating seal of a first chamber comprised between the separating seal and the connector in which a first active ingredient is positioned and a second chamber comprised between the separating seal and the tightening seal in which a second active ingredient is positioned, the separating seal having a connecting channel between the first and second chamber, closed by a pressure limiting valve, first engaging means further being provided, activatable for engaging the separating seal to the needle and second engaging means activatable for engaging the separating seal to the piston.

The invention relates to an implant injection device (1), comprising: an injection needle (3), a receiver housing (7) for receiving at least a first implant and a second implant, injection means (11), comprising: a pushing rod (37), arranged upstream from said implants housed in the receiver housing (7) and configured to push the first implant and the second implant through the injection needle (3) between an initial position and a final position in which the first implant and the second implant are injected, means (39) for pushing on the pushing rod (37), configured to exert a force tending to move the pushing rod (37) from the initial position to the final position, intermediate stop means (41) holding the pushing rod (37) in an intermediate position between the initial position and the final position, said means oppose the force exerted by the pushing means (39) when the stroke of the pushing rod (37) reaches a predetermined distance corresponding to the length of injection of the first implant, means (43) for actuation by a user, configured to release a displacement of the pushing rod (37) from the intermediate position to the final position.

A disposable injection pen includes a pen casing, an injection head mechanism and a trigger mechanism. The injection head mechanism includes a barrel arranged in the pen casing and a needle arranged on a top thereof. The barrel is provided with a rubber plug. The trigger mechanism includes a protective sheath arranged in the pen casing and movably wrapped around the needle. A bottom of the protective sheath movably abuts against a sliding part. An outside of the sliding part is sleeved with a secondary spring whose bottom is fixedly connected to a bottom of the pen casing. An inside of the sliding part is movably clamped with a push rod with an open bottom. An inner top of the push rod is connected to an inner bottom of the sliding part through a primary spring.

One embodiment is directed to a system for injecting, comprising a syringe body defining an interior medicine chamber; a stopper member configured to be inserted into the interior medicine chamber to contain medicine within the medicine chamber; a plunger member configured to be manually manipulated to insert the stopper member relative to the syringe body; a needle having proximal and distal ends, the proximal end comprising an anchoring geometry configured to be at least partially penetrated into the stopper member such that upon retraction of the stopper member, the needle is pulled proximally along with the stopper to be at least partially contained within the interior medicine chamber; and an energy-storing member operatively coupled between the stopper member and the syringe body, the energy-storing member configured to facilitate retraction of the stopper member relative to the syringe body.

A syringe for receiving a fluid from a container. The syringe comprises a barrel for housing the fluid and including an end wall with an opening defined therein, a plunger for slidable engagement within the barrel, and moveable between a retracted position and an extended position, and a needle. The needle has a first end anchored to the plunger and a second distal end, a conduit defined by the needle, and an inlet offset from the second distal end for fluid communication with an opening defined at the second distal end. The plunger includes a plunger seal for engagement within the barrel, the plunger seal defining a passage for receiving the needle. The syringe further comprises an engagement system having a complementary feature to cooperatively engage with a complementary feature of the container to mount the container to the syringe.

The invention relates to an injection device. Exemplary embodiments of the invention comprise an application element, an injection needle, an injection needle housing, a drive system for the injection movement, and a retraction system. In exemplary embodiments, a substance is injected during the retraction movement of the injection needle.