RU197932U1 - CAP FOR GLASS POTS FILLED WITH MEDICAL LIQUIDS - Google Patents

Abstract

The utility model relates to medical equipment, namely packaging for sterile liquids, more specifically, to closures - caps for containers filled with medical liquids, and can be used in the medical industry for sterile closure of containers, in particular, filled with liquids for injection or transfusion, with the possibility of providing puncture places in the closure for introducing into the container a device for collecting sterile liquid (for example, a syringe) and then safely removing this device with the required amount of liquid. The technical result is the provision of reliable fastening of the cap to the neck of a glass container. The cap for glass containers filled with medical fluids contains a housing with a side wall and an end wall forming the internal cavity of the housing, at least two through holes are made on the end wall, forming puncture sites and covered with tear-off elements, and an elastic element located in the internal cavity of the housing on its end wall, while it additionally contains at least two locking protrusions located at the same distance from each other on the side wall of the housing at an angle α, which is from 85 ° to 105 °. 6 c.p. f-ly, 4 ill.

Description

The utility model relates to medical equipment, namely packaging for sterile liquids, and more particularly, to closures - caps for containers filled with medical liquids, and can be used in the medical industry for sterile closure of containers, in particular, filled with liquids for injection or transfusion, with the possibility of providing puncture places in the closure for introducing into the container a device for collecting sterile liquid (for example, a syringe) and then safely removing this device with the required amount of liquid.

The aluminum cap is known from the prior art, which is a closure that is rolled up or crimped on the neck of a bottle or vial after filling them with medicines and capping with rubber stoppers to ensure sealing of the closure (http://medabraziv.ru/alyuminievyie_kolpachki).

The disadvantage of this cap is its limited use if it is necessary to introduce additional medication into a sterile fluid before or during the procedure, due to the absence of independent openings in its device for collecting sterile fluid and introducing an additional component, respectively.

Known cap for containers filled with medical fluids, which has a place for the selection of medical fluid and injection of additional funds, while the places of selection and injection are made as separate accesses to the first hole for the selection of liquid, which is closed by the first punctured self-sealing membrane, and the second hole for injection of additional means, which is locked by a second punctured self-sealing membrane, the first and second punctured membranes being made differently. (EA 009498 B1, class B65D 51/00, publ. 02.28.2008). The use of punctured self-sealing membranes to close the puncture sites in the cap design makes it possible to increase the convenience of puncture of the sealing element, as well as to ensure its effective compression after removing the sterile fluid intake device. The disadvantages of the device of this cap include the implementation of the membranes separately, as well as their location directly in the puncture holes, complicates the design and its assembly, as well as the reliability of its use.

A cap is also known for sealing polymer bottles with infusion medical solutions, comprising a body, in the upper part of which there is a protrusion with two ports in the form of holes, and in its lower part there is an annular bead-flange designed for welding the cap to the neck of the bottle containing the medical infusion solution, and a sealing element located in the inner cavity of the protrusion. Both ports are closed by elements for opening ports, while the sealing element is made in the form of an insert of synthetic rubber located inside the protrusion, and is fixed by a plate welded to the lower inner edge of the protrusion, and the elements for opening the ports are made in the form of two tear-off oval petals that make up a single integer with lid protrusion. (RU 173333 U1, class B65D 51/20, A61J 1/14, published 07.09.2016).

The cover device provides the possibility of self-sealing of puncture sites after removing the device for sterile fluid intake by using an elastic element, as well as increasing the reliability of pairing of the cap elements and increasing the rigidity of its entire structure by fixing the elastic element inside a rigid frame. The disadvantage of the cap device is the lack of technical feasibility of its fastening and sealing when using, for example, glass bottles with infusion solutions, since the annular bead-flange is designed to weld the cap to the neck of the bottle made of a polymer material.

Closest to the claimed utility model is a cap for containers filled with medical fluids, comprising a body with a side wall and an end wall forming the internal cavity of the body, a protrusion is made on the end wall with at least two through holes on the end surface, forming puncture sites and closed tear-off elements, containing a gripping part and a connecting part mating with the end surface of the protrusion and made with a weakened section partially or along the entire length of the interface with the end surface of the protrusion. In the inner cavity of the housing on its end wall at the puncture sites is an elastic element made inside a rigid frame, and the elastic element extends beyond the through holes. (RU 178945 U1, class B65D 51/20, A61J 1/14, published 07.09.2016). The cap is mounted on a container, for example, a plastic bottle filled with liquids for injection or transfusion, using automatic lines to ensure the necessary sterility parameters. To install the cap on the tank, use an annular protrusion with an internal groove.

The device of the cap provides the possibility of self-sealing of the puncture sites after removing the device for the intake of sterile fluid through the use of an elastic element, increases the reliability of pairing of the cap elements, as well as the rigidity of its entire structure by fixing the elastic element inside a rigid frame. The disadvantage of the cap is its limited applicability, which is due to the possibility of its use with a certain type of containers containing a solution for the internal groove.

The objective of the utility model is to expand the arsenal of caps for glass containers filled with medical fluids with the elimination of the disadvantage inherent in the prototype.

The technical result is the provision of reliable fastening of the cap to the neck of a glass container.

The technical result is achieved by the fact that the cap for glass containers filled with medical liquids comprises a body with a side wall and an end wall forming the internal cavity of the body, at least two through holes are made on the end wall, forming puncture sites and closed with tear-off elements, and an elastic element located in the inner cavity of the housing on its end wall, while it further comprises at least two locking protrusions located at the same distance from each other on the side wall of the housing at an angle α, which is from 85 ° to 105 °.

There is an option in which the housing is made of non-toxic pyrogen-free polymeric material.

There is an option in which polypropylene, polyethylene, polycarbonate or polystyrene is used as a non-toxic pyrogen-free polymeric material.

There is an option in which the elastic element is made of rubber or a thermoplastic elastomer.

There is an option in which the tear-off elements comprise a recess.

There is an option in which the cap further comprises an annular protrusion located in the inner cavity of the housing on its end wall

There is an option in which the elastic element is fixed inside the annular protrusion

The examples and graphic materials given in the description do not limit the options for performing the cap, but only explain its structure.

In FIG. 1 shows a cap fixed to the neck of a glass container (cross section).

In FIG. 2 shows a cap (top view).

In FIG. 3 shows a cap containing an annular protrusion with an elastic element fixed inside, as well as tear-off elements made with a recess (cross section).

In FIG. 4 shows a cap containing an annular protrusion with an elastic element fixed inside, as well as tear-off elements made with a recess (top view).

The cap for glass containers filled with medical fluids contains a housing 1 (FIG. 1, FIG. 2, FIG. 3, FIG. 4) with a side wall 2 (FIG. 1, FIG. 2, FIG. 3, FIG. 4) and an end wall 3 (Fig. 1, Fig. 2., Fig. 3, Fig. 4) forming the internal cavity of the housing 1. At least two through holes 4 are made on the end wall 3 (Fig. 1, Fig. 3.), forming a puncture site and closed by tear-off elements 5 (FIG. 1, FIG. 2., FIG. 3, FIG. 4).

Tear-off elements 5 may contain recesses 6 (FIG. 3, FIG. 4). In the inner cavity of the housing 1 on its end wall 3 is an elastic element 7 (Fig 1, Fig. 3). In the inner cavity of the housing 1 on its end wall 3 can be located an annular protrusion 8 (Fig. 3.), and the elastic element 7 is fixed inside the annular protrusion 8. On the side wall 2 of the housing 1 at an angle α at the same distance from each other are fixing protrusions 9 (Fig. 1, Fig. 3), which secure the cap to the neck 10 (Fig. 1, Fig. 3) of a glass container.

The housing 1 is made of non-toxic pyrogen-free polymeric material. As such a material, polypropylene, polyethylene, polycarbonate or polystyrene can be used.

The elastic element 7 is made of rubber or a thermoplastic elastomer.

The cap described above is used as follows.

The cap is installed on the neck 10 of the glass container by pressing, while the cap is secured to the neck 10 by snapping the locking tabs 9. Sterilization is carried out in various ways, including sterilizing filtration in case of aseptic filling, as well as steam or superheated water at a temperature of 121 ° C the use of an autoclave.

To access the liquid in the tank, the tear-off elements 5 are moved upward, thereby opening through holes 4. Then, through one of the through holes 4, a polymer or metal needle of the infusion system (for example, a dropper) is inserted into the inner space of the cap under the elastic element 7 by piercing and further into a sterile liquid for its intake. The introduction of additional drug into a sterile liquid using, for example, a syringe is carried out through another through hole 4 by piercing the elastic element 7.

Below are examples of the implementation of the utility model.

Example 1. A cap containing a housing 1 made of polyethylene, an elastic element 7 made of rubber, and two locking protrusions 9 located at the same distance from each other on the side wall 2 of the housing 1 at an angle α, which is 85 °, are used as described above.

Example 2. A cap containing a housing 1 made of polycarbonate, an elastic element 7 made of rubber, and four locking protrusions 9 located at the same distance from each other on the side wall 2 of the housing 1 at an angle α, which is 90 °, are used as described above.

Example 3. A cap containing a housing 1 made of polypropylene, an elastic element 7 made of thermoplastic elastomer, and six locking protrusions 9 located at the same distance from each other on the side wall 2 of the housing 1 at an angle α, which is 100 °, are used as described above .

Example 4. A cap containing a housing 1 made of polystyrene, an elastic element 7 made of thermoplastic elastomer, as well as six locking protrusions 9 located at the same distance from each other on the side wall 2 of the housing 1 at an angle α, which is 105 °, are used as described above .

For each of the above examples of the implementation of the utility model, leak tests and, accordingly, the reliability of fastening the cap to the neck of a glass container were carried out. A container with sterile liquid and a cap installed on it is placed in a vacuum desiccator and set with the cap down on an absorbent cloth. Then carry out the evacuation process. If the container is sealed leakingly, then the sterile liquid through the defects in the cap, as well as the gaps in the case of a loose compression by the fixing protrusions of the neck of the container, starts to leak out. After returning to normal pressure, the test results are evaluated by visual observation. In each case, the absorbent wipe remained dry, and no droplets of sterile liquid protruding from the cap itself.

At least two locking protrusions located at the same distance from each other on the side wall of the housing at an angle α, which is from 85 ° to 105 °, provide tight fixation of the housing on the neck of the glass container and, accordingly, allow solving the problem of the utility model with the achievement of the technical result.

The implementation of the housing of non-toxic pyrogen-free polymeric material ensures the safety of the use of the cap during medical procedures. The most preferred of these materials is polypropylene, since it has a low cost and is also suitable for autoclaving at 121 ° C, the temperature used in the pharmaceutical industry for sterilization of drugs.

The execution of the elastic element from rubber or thermoplastic elastomer provides the possibility of self-sealing over its entire thickness and surface when removing the needle of the infusion system and syringe from the container and cap to maintain sterility of the fluid. In this case, rubber used, for example, in the pharmaceutical, food or cosmetic industries can be used. It should be noted that it is preferable to use a thermoplastic elastomer as the material of the elastic element, since such a solution allows one to obtain an elastic element with highly elastic properties that can be molded by injection molding.

The implementation of tear-off elements with a recess allows to increase the convenience of their removal for opening through holes.

The presence of an annular protrusion with an elastic element fixed inside it provides an increase in the rigidity of the cap.

Claims (7)

1. A cap for medical glass liquids filled with medical liquids, comprising a body with a side wall and an end wall forming the internal cavity of the body, with at least two through holes formed at the end wall forming puncture sites and covered with tear-off elements, and an elastic element located in the inner cavity of the housing on its end wall, characterized in that it further comprises at least two locking protrusions located at the same distance from each other on the side wall of the housing at an angle α, which is from 85 ° to 105 ° . 2. The cap according to claim 1, characterized in that the casing is made of non-toxic pyrogen-free polymeric material. 3. The cap according to claim 2, characterized in that polypropylene, polyethylene, polycarbonate or polystyrene are used as a non-toxic pyrogen-free polymeric material. 4. The cap according to claim 1, characterized in that the elastic element is made of rubber or a thermoplastic elastomer. 5. The cap according to claim 1, characterized in that the tear-off elements contain a recess. 6. The cap according to claim 1, characterized in that it further comprises an annular protrusion located in the inner cavity of the housing on its end wall. 7. The cap according to claim 6, characterized in that the elastic element is fixed inside the annular protrusion.

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