SU1537267A1 - Automatic injector - Google Patents

Abstract

The invention relates to devices for the automatic introduction of drugs. The purpose of the invention is to automatically remove the needle after injection. The automatic injector consists of a housing 1, a pusher 2 made in the form of a Y-shaped spring, a return mechanism 3 made in the form of a U-shaped spring, and an interchangeable capsule 4 with a needle 5. The return mechanism 3 has a stopper 6. The pusher 2 is fixed by a stopper 7 , having a trigger element 8, and in a free state interacts with the stopper 6 of the return mechanism 3. 2 Il.

Description

1

The invention relates to medicine, in particular to devices for the automatic introduction of medicinal substances.

The aim of the invention is to automatically remove the needle after injection.

FIG. 1 depicts an automatic injector, common zid; in fig. 2 — PREPARATION of an automatic injector with nfc capsules.

An automatic injector consists of a housing 1, a pusher 2, made in the form of a V-shaped spring, a return mechanism of the gate mechanism 3, made in the form of a V-shaped spring, and an interchangeable capsule 4 with a needle 5. The return mechanism 3 has a spring-loaded the stopper 6. The pusher 2 is fixed by a stopper 7 having a spring-loaded trigger element 8, while one V-shaped spring, mounted on the side of the capsule 4t, is connected to the base of the capsule 4 — made from от-9; by means of which the spring interacts with the stopper 7 and is fixed in the working position and, the other end of the V-shaped spring is attached to the wall of the housing 1, on

Etora with the possibility of longitudinal

to

displacement is set to the trigger 8. The return mechanism 3 is located at the opposite wall of the housing 1, on which one end of the V-shaped spring is fixed and the stopper 6 is pivotally mounted, which interacts with the other end of the V-shaped spring and holds it in the working position, V- The various springs are parallel to each other. The replaceable capsule 4 is installed perpendicular to the walls of the housing 1 with fixed V-shaped springs and is made with corrugated walls. Automatic injector. Can be performed with several interchangeable capsules 4, for which an appropriate number of all the working elements is necessary.

Automatic injector works as follows.

When the trigger element 8 is moved, the stopper 7 moves and releases the V-shaped spring from its fixation, which acts on the cap

0 5

0

five

five

0

Sulu 4. As a result, the needle 5, piercing the protective film, is inserted into the human body and the corrugated walls of the capsule 4 are compressed, which allows for injection. When it ends, this V-shaped spring interacts with the stopper 6, thereby freeing another V-shaped spring, which returns the first spring to its original position and thereby removes the needle 5 from the human body. The ratio of the efforts of the V-shaped springs is adjusted to ensure the smoothness of their work. When replacing the replaceable capsule 4, all the working elements are installed and fixed in the initial position. When several capsules 4 are used with different medicinal substances, the corresponding trigger elements -8 are moved, depending on the need for the introduction of any medicinal substance or the combination of medicinal substances.

An automatic injector can be used to self-inject medicinal substances by the injured or injured himself, as it is driven by a single movement of the hand. At the same time, if the automatic injector is located, for example, in the back pocket of the pants with a needle in the direction of the human body, then the injured or injured can use it without taking it out of the pocket.

Claims (1)

Invention Formula An automatic injector, comprising a housing with a pusher and a stopper with a trigger element and a replaceable capsule with a needle, that is, in order to automatically remove the needle after the injection, it is equipped with a return mechanism made in A V-shaped spring with a stopper, while the pusher is also made in the form of a 7-shaped spring installed on the side of the capsule and taken up in a free state with a spring stopper of the return mechanism, and the capsule is made with corrugated-4 walls. 0 FIG. 2 Editor G. Gerber Compiled by G. Gudkov T Öhred l. Ol nynyk Order 124 Circulation 472 VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5 Production and publishing plant Patent, Uzhgorod, st. Gagarin, 101 Proofreader M.Sharoshi Subscription