Tecpharma Licensing Ag

Ypsomed Ag

Other

Stewi Ag

Vebo Genossenschaft

Benjamin Scherer

Edgar Hommann

Ian M Thompson

Lorenz Broennimann

Stephan EBNÖTHER

Lorenz FÄH

An injection device including a housing, a needle guard sleeve displaceable relative to the housing, and a spring coupled to the guard sleeve such that the guard sleeve can be moved by the spring distally from a proximal position to an end position, the spring also being coupled to a forward drive element displaceable relative to the housing in a drive direction wherein the spring is tensioned upon a movement of the forward drive element in the forward drive direction.

Injection device with a spring for a needle protecting sleeve

In an elongated casing, an active agent container connected to an injection needle can be shifted axially by a spring force. Auto-injectors distributed pre-filled and with the springs tensed may be provided with a needle protecting cap to ensure sterility of the needle. When the needle protecting cap is removed as preparation for using the auto-injector, a tensile force can be exerted on the active agent container. Therefore, the active agent container and needle must be prevented from being undesirably pulled forwards. At least one latching tongue prevents the active agent container from being prematurely shifted with respect to the casing, by abutting a flange arranged on a sliding sleeve accommodating the active agent container. When the auto-injector is placed onto the skin, a needle protecting tube is shifted into the casing, forcing the latching tongue away from the flange, thereby freeing the travel path for needle movement.

Auto-injector with active agent container latching

In an elongated casing, an active agent container connected to an injection needle can be shifted axially by a spring force. Auto-injectors which are sold or distributed filled and with the springs tensed have to be provided with a needle protecting cap to ensure the sterility of the injection needle. When such a needle protecting cap is removed as preparation for using the auto-injector, a tensile force can be exerted on the active agent container. Therefore, the active agent container comprising the injection needle must be prevented from being undesirably pulled forwards. At least one latching tongue prevents the active agent container from being prematurely shifted with respect to the casing, by abutting a flange arranged on a sliding sleeve which accommodates the active agent container. When the auto-injector is placed onto a person's skin, a needle protecting tube is shifted into the casing, forcing the latching tongue away from the flange and, thus, freeing the travel path for needle movement.

An injection device for use with a two-chamber ampoule, wherein the device includes a front casing part with which the two-chamber ampoule can be associated, a rear casing part, a threaded drive accommodated by the rear casing part, a piston rod which, during a blending movement, is moved by the threaded drive toward a dispensing end of the device and slaves at least a closing piston of the two-chamber ampoule in the process, wherein a spring element presses the piston rod toward the dispensing end during a delivery movement.

Auto-pen for a two-chamber ampoule

A device for automatically injecting an active agent, the device involving a syringe filled with an active agent and carrying an injection needle, the syringe displaceable in a receiver by the tension of a spring. A transmission displaceable by at least one spring traverses a first partial path for sticking the injection needle and a second partial path for emptying the active agent from the syringe. The at least one spring acts between the transmission and an intermediate part, and another spring acts between the intermediate part and a support fixedly connected to the receiver. An indicator visible from the outside is connected to the intermediate part, moves only during the second partial path, and traverses a path length that is substantially smaller that the sum of both partial paths.

Device for automatically injecting an active agent

A device for administering an injectable product including a casing, an injection mechanism including an injection needle pointing in an insertion direction, and a protective cap for the injection needle wherein, in one embodiment, the administering device includes a removing device for removing the protective cap from the injection needle and, in another embodiment, the administering device includes a needle protecting sleeve shiftable generally in alignment with the casing and generally between a front position, advanced relative to the casing, for protecting the injection needle and to a rear position, retracted relative to the casing, for inserting the injection needle into a tissue. In one embodiment, the needle protecting sleeve is prevented from moving completely into the rear position by a lock when the protective cap is protecting the injection needle.

Growing community of inventors

Uster, Switzerland

Benjamin Scherer