ES1075366U - Hypodermic syringe with bellows system - Google Patents

Abstract

Hypodermic syringe with bellows system, of the type used to inject drugs intramuscularly into the muscle mass (10), characterized essentially by being made up of a deformable and flexible container (1), with a structure simulating a bellows, associated with a plug (2), internally comprising the liquid to be injected and the injector needle (3) of tubular and hollow conformation and of an undefined caliber and said needle (3) being linked to a conical head (4). (Machine-translation by Google Translate, not legally binding)

Description

Hypodermic syringe with system bellows.

Object of the invention

The utility model presented refers to a hypodermic syringe with bellows system that comprises a flexible and deformable container with an associated injection needle, presenting advantages of use that far exceed the syringes existing in the state of the art and in he
market.

Specifically, this innovation develops a type syringe specially designed for quick and immediate use in circumstances where it is either massive treatments or well for people who must self inject medications, mainly. The syringe comprises a deformable body similar to a bellows pre loaded with the medically in question and associated with an injection needle.

Background of the invention and State of the art

The hypodermic syringe is an instrument sanitary whose object is to inoculate medication under the skin of a person or draw fluid, for example blood. Basically It comprises a hollow and tubular needle that penetrates human tissue and that is coupled to the nozzle of a cylinder or container tubular with indicative marks of the level of use contained and some clamping wings on its back and inside which penetrates a piston to press the contained liquid, forcing it to follow the inner needle travel.

From this basic structure they have developed multiple syringe designs, whose conformation characteristics vary depending on your application final, varying, for example, the gauge of the needle, the capacity of the container, the injector mechanism, etc. Although most of the syringes should be loaded with the liquid to be injected, for example In the case of insulin for diabetics, there are also pre-filled syringes with the dose of correct medication.

And also in general, with few exceptions, current health regulations state that syringes are mono use, that is, they include a mechanism such that it prevents a new use after being used for the first time.

Based on the above, and with the exception of existing variables, the basic conformation of the syringes It is still the one described in previous paragraphs: needle, plunger and container. This provision requires a special manipulation of the syringe, which is usually used with only one hand in an operation in which the degree of approximation and inclination of the syringe determines a greater or lesser ease in the introduction of the needle on the skin and, consequently, more or less pain before prick that tears the skin and tissue.

Therefore, there are circumstances in which the Management of a hypodermic syringe can be complex, by less so for example in the case of need for injections massive numbers of people when speed is imperative (vaccinations, epidemics, etc.) or in the case of people who must self inject for various reasons and especially for treatments of chronic diseases. In these cases, the usual protocol for putting an injectable can be complicated or at least slow in the first case and insecure in the second.

The applicant considers that there should be a type of syringe of very simple use that allowed to inject medicines with a simple pressure and without the need to execute complex movements

In his day, this same applicant patented a "field syringe", with a bellows type body and a needle similar to a staff, but this technical solution is not operational anymore that the injectable liquid could not penetrate the needle. exist other patents that develop similar ideas, such as the US patent 5267974 in which the syringe has a compressible body with a needle in which the liquid penetrates axially. The same occurs with US patent 2696212, in which the syringe has a deformable body with an injection needle into which the liquid at its upper end.

In all these cases, the technical resolution is, a priori , satisfactory, but the practical application comes to highlight the difficulty in getting the injectable liquid to penetrate the needle tube.

Based on the above and also as a result of his own experience, the applicant understands that there should be a way to drive the injectable liquid into the needle while maintaining a flexible container for self-filled syringes and a single
use.

Description of the invention

Thus, the invention presented in this utility model aims at a hypodermic syringe with concrete bellows system in a deformable and flexible body and a syringe associated with a conical head with holes, all this linked to a screw cap.

This hypodermic syringe with system bellows matches the rest of syringes in having a injection needle but simplifies the rest of its structure. The piston and the tubular cylinder disappears and the body of the the syringe to a deformable container similar to a bellows closed at the bottom and with a thread at the top It allows you to link to a plug. Inserted in this cap is place a conical head, similar to a funnel with holes perimetrales in part of its structure, with the mouth coupled to the aforementioned cap and its lower cannula adjusted with the needle tubular and hollow.

The whole set has dimensions very reduced The volume of the container and consequently, the dimensions of the cap to which it fits and the length of the Internal syringe depend, in any case, on the amount of liquid to be injected: the greater the amount of liquid, the greater the capacity requires the deformable container, and to a lesser amount, less Capacity and smaller size requires the container. With everything, having in consideration that these are pre-filled syringes and a only use, the dose of medication is limited and therefore also are the dimensions of the aforementioned syringe.

This invention is completed with a box cylindrical with associated cover, dimensionally suitable to accommodate inside the syringe, which facilitates the handling of the same for transport, safeguard the injectable medication, guarantees the sanitary sterility of the instrument and avoids the risk of accidental punctures after use when the needle is at discovered, this cylindrical box being finally the ideal container to deposit the used syringe in the waste container for final disposal.

In its resting position, the deformable body It is deployed along its entire length, with the needle completely housed and hidden inside. The liquid to be injected it also remains inside the container, which is airtight and not porous.

In passing to use situation, it is enough to place the base of the container on the relevant muscle mass and press the plug. When compressing the container, it deforms and folds, simultaneously the needle penetrates the tissue, the fluid moves up, penetrates through the holes in the head of the needle and in the same needle, which injects it into muscle mass.

The result is a rapid injection, without complicated maneuvers, with a fast and light movement pressure, suitable for anyone without experience sanitary

Description of the drawings

For a better understanding of how much is left described herein, some drawings are attached, the which should be analyzed and considered only by way of example and without any limiting or restrictive character.

Figure 1.- Elevation view of the syringe hypodermic with bellows system in rest position.

Figure 2.- Elevation view of the syringe hypodermic with bellows system after use.

Figure 3.- Detail view of the cap and the needle fuel transfer

Figure 4.- Detail view of the conical head inside and the associated syringe.

Figure 5.- Elevation view of the head conical.

Figure 6.- Plan view of the head conical.

Figure 7.- Cap cut.

Figure 8.- Cut of the cap, head assembly Conical and syringe.

Figure 9.- Detail view of the container deformable or bellows.

Figure 10.- Section of the deformable container or bellows.

Figure 11.- Cut of the syringe assembly hypodermic with bellows system in rest position.

Figure 12.- Cut of the syringe assembly hypodermic with bellows system in use.

Figure 13.- Cut of the syringe assembly hypodermic with bellows system after use.

Figure 14.- View of the cylindrical box.

Description of a preferred embodiment

These figures show the conformation of the new hypodermic syringe with bellows system, shaped externally, as shown in figures 1 and 2, by a deformable and flexible container type body (1), with a structure similar to a bellows, and a plug (2), comprising internally the injection needle (3), of tubular conformation and hollow and of an undefined caliber. In this figure 1, the container flexible (1) appears fully extended in its conformation original before using the syringe, while in the figure 2 said container (1) appears conveniently deformed and dimensionally reduced, exposing the practice entire injection needle (3).

Figure 3 shows the plug (2) and the needle (3) inserted into the end end of the cannula (5) of the head conical (4) described in figures 4, 5 and 6 in which they perceive the holes (6) capriciously located through the conical head body. These figures also show clearly the cannula (5) of the lower end of the head, noticeably narrow, which occupies a central position in it, as detailed in figure 6.

Figures 7 and 8 detail the plug (2), with internal thread (7) and associated in its internal central part with the spout of the head (4), substantially wide, being, in fact, the widest part of said head (4).

The container is shown in Figures 9 and 10 flexible and deformable (1), hollow inside and closed by its bottom or base (9), open at the top where It forms an externally threaded area (8). Within this container is placed the injection needle and also the liquid to inject. The body of this container (1) presents in all its contour folds (11) that allow compression in one way similar to a bellows, from which three consequences derive: it is reduced the volume of the container, the injection needle is exposed and the liquid it contains is compressed, which is forced to move to the only possible exit through the holes (6) of the head (4), circulating inside the needle injector (3) until leaving through its final hole inserted in the mass muscular.

Figure 11 shows a section of the assembly. of the hypodermic syringe, with the deformable container and flexible (1) threaded with the cap thanks to their respective threads (8) and (7), with the conical head (4) attached to the inner face of the cap (2) and the injection needle (3) adjusted at the end end of the cannula (5) of said head. In this figure 11, the body of the syringe, that is, the flexible container (1), is fully extended

A section of the assembly is shown in figure 12 of the hypodermic syringe after use, highlighting the mode in which the flexible container has been deformed, folding as a bellows or accordion, and notably redicting its length. How consequently, the needle (3), which remains fixed in its position and coupled to the cannula (5) of the conical head (4), tear and break the base (9) of said container (1), being exposed.

Figure 13 shows the operation of the hypodermic syringe with bellows system, which is positioned on the muscle mass (10), so that by pressing the plug (2), the flexible container (1) deforms, contracting its structure and folding, so that the injector water (3) penetrates the mass muscle, while the liquid enclosed within the container flexible (1), when its capacity is reduced, it is forced to move, penetrating the only exit that exists, that is, the conical head holes (4) that connect directly to the injection needle (3), thus reaching the medicament liquid to the needle exit hole (3) that is locked in the corresponding muscle mass (10). This displacement of the liquid is illustrated in figure 13 by arrows that mark the route they trace.

In figure 14 shows the cylindrical container (12) with associated cap, which acts as a syringe packaging in a first phase, before use, ensuring the sterility of the same and the sanitary conditions of the medicine, while It facilitates comfortable and safe transport and handling. In a second phase, when the syringe is already used and therefore unable for later use, the same container or box cylindrical is again the container to remove sanitary waste no risk of accidental punctures.

The operation of this syringe is, by both simple and intuitive: with a simple pressure on the cap you manages to inject the liquid, without the need for movements or own maneuvers of health professionals. Also the described cap fulfills the function of being the handle that the user precise to take the syringe in an easy and maneuvering way complicated

It is not considered necessary to extend this description so that any subject matter expert understands the scope of the invention and the advantages derived therefrom. The materials, shape, size and arrangement of the different parts they will be susceptible of variation as long as this does not imply alteration in the essentiality of the invention, the terms in which it has been drafted this report should always be taken broadly and not limiting.

Claims (6)

1. Hypodermic syringe with bellows system, of the type used to inject medications intramuscularly into the muscle mass (10), characterized essentially by being formed by a deformable and flexible container (1), with a structure similar to a bellows , associated with a plug (2), internally comprising the liquid to be injected and the injector needle (3) of tubular and hollow conformation and of an undefined caliber and said needle (3) being linked to a conical head (4). 2. Hypodermic syringe with bellows system, according to the 1st claim, essentially characterized in that the flexible and deformable container (1) is hollow internally, is closed at its bottom or base (9) and open at its upper part where it is formed an external thread (8), presenting in all its contour folds (11) that allow its compression. 3. Hypodermic syringe with bellows system, according to the 1st claim, essentially characterized in that the cap (2) has an inner thread (7) in which the flexible and deformable container (1) is adjusted, the inner central part of the cap being (2) coupled with the head (4). 4. Hypodermic syringe with bellows system, according to the 1st and 3rd claims, essentially characterized in that the conical head (4) has a substantially wide mouth at its upper end that engages with the inner part of the cap (2), and a cannula (5) substantially narrow in its lower part, said cannula (5) occupying a central position of the head (4), the structure or body of said conical head (4) presenting various through holes (6) capriciously located. 5. Hypodermic syringe with bellows system, according to the 1st and 4th claims, essentially characterized in that the needle (3) is inserted into the final end of the cannula (5) of the conical head (4). 6. Hypodermic syringe with bellows system, according to the preceding claims essentially characterized in that it is located inside a cylindrical box or container (12) with associated cap and dimensionally suitable for housing said syringe.