RU2311896C2 - Flask "extempore" - Google Patents

Abstract

FIELD: medicine, in particular, medicinal drugs storing equipment.

SUBSTANCE: flask has movable vial provided with longitudinal openings and located within elongated neck of flask, said neck being equipped with retaining ring. Neck is positioned for axial movement between circular slots provided on outer surface of vial. Toothed tape retains cover in predetermined position. Circular slots provided on flask and cover have toothed surface.

EFFECT: enhanced reliability in storing of soluble substance and solvent and in preparing of solution without disturbing isolation of flask contents from environment.

4 dwg

Description

The present invention - the bottle "Impromptu" - relates to the field of medical industry and can be used to store drugs and prepare sterile solutions.

Known pharmaceutical container for two individual substances with a mixing and dosing device, protected by RF patent No. 2157682. Its disadvantage is that when using it it is problematic to choose the prepared solution with a needle into an injection syringe.

The objective of the invention is to create conditions for the separate storage of the dry drug substance and the solvent "in one package", the rapid preparation of the solution while maintaining sterility, as well as the convenience of choosing the prepared solution by means of a needle in the syringe for injection.

The problem is solved using the bottle "Impromptu", in which, thanks to the special shape of the neck, a tube with the possibility of axial movement is installed, which allows you to keep the drug and solvent isolated from each other and from the environment and, if necessary, prepare the solution without violating the isolation of the contents of the bottle, tubes and the prepared solution from the environment.

The bottle "Impromptu" is illustrated by drawings:

figure 1 - General view

figure 2 is a General view in section,

figure 3 - in the assembled state in the context,

figure 4 - in working condition in section.

Bottle "Impromptu", General view - figure 1, where the positions indicated:

1 - bottle

2 - a gear tape,

3 - cover.

Bottle "Impromptu", a General view in section - figure 2, the positions indicated:

1 - bottle with an extended neck, solid product. The bottle is a hollow cylinder, the upper end of which passes into an elongated neck. The elongated neck, which runs parallel to the O-O axis, has a screw thread 11 on the outer surface for screwing on the cover 3. On the inner surface in the upper part of the elongated neck there is an annular recess 6 for installing a retaining ring 7 of elastic material, for fixing the tube 14. On the upper the edge of the cylindrical surface of the bottle is made of an annular recess 4 with a toothed surface for installing the toothed belt 2 (figure 1).

2 - a gear tape. Toothed tape has protrusions and depressions that correspond to the toothed surface in the annular recesses on the bottle 1 (figure 2) and the cover 3 (figure 2). Toothed tape is placed in annular recesses with a toothed surface on the bottle and on the lid. With its width, it sets the distance by which the cover should move when tightening. Entering meshing with the toothed surface in the annular recess 4 (FIG. 2) of the bottle 1 and with the toothed surface in the annular recess 5 (FIG. 2) of the lid 3, prevents the lid from rotating relative to the vial.

3 - cover. The lower part of the lid on the outside has an annular recess with a toothed surface 5 for laying the toothed belt 2, (figure 2). On the inner surface of the walls of the lid there is a screw thread for screwing onto the threaded part of the neck of the bottle 1 (figure 2 and 3). The inner surface of the bottom of the lid is a flat circle.

4 - an annular recess with a serrated surface on the bottle.

5 - an annular recess with a serrated surface on the lid.

6 - annular recess for installing the retaining ring 7.

7 - a fixing ring of elastic material.

8 - an annular recess for fixing the tubes in the "storage" position.

9 - an annular recess for fixing the tubes in the "dissolution" position.

10 - plug, clogging the tube 14 (figure 2).

11 - screw thread for screwing the cap 3 (figure 2).

12 - the freely protruding end of the gear belt 2 (Fig.1-3), for the convenience of its removal.

13 - longitudinal holes of the movable tube 14 (figure 2). The number and size of holes depends on the diameter of the tube. The total opening area of the holes may be equal to or greater than the cross-sectional area of the tube.

14 - a movable tube with longitudinal holes 13 (figure 2). In the lower part of the test tube, at some distance from the conditional annular line of transition of the convex bottom surface to the cylindrical surface of the test tube wall, there are longitudinal holes 13. There are two annular recesses on the outer surface of the upper part of the test tube: 8 - “storage” and 9 - “dissolution”, located at a distance from each other, equal to the distance by which the tube moves from the "storage" position to the "Dissolution" position. On top of the tube is closed by a stopper 10 of elastic material, through which the syringe needle can easily penetrate.

The bottle "Impromptu" in the assembled state in the context is illustrated in figure 3: the movable tube 14 is installed in the neck and is fixed with a locking ring 7 in the "storage" position. On top of the tube is closed by a stopper 10. Being in the "storage" position, the outer surface of the tube is covered by the inner surface of the neck. By blocking the longitudinal holes 13 of the tube 14, and also covering part of the surface of the tube below and above the longitudinal holes, the inner surface of the neck isolates the internal volume of the tube both from the environment and from the internal volume of the vial. The internal volume of the vial is also isolated from the environment. The bottle 1 and the movable tube 14 are filled with the required amount of soluble substance and solvent, moreover, the solvent and soluble substance can occupy different positions: the soluble substance in the test tube is the solvent in the bottle or vice versa. The cap 3 is screwed onto the neck of the bottle 1 until the plane of the bottom of the cap comes into contact with the end of the movable tube 14. In the gap between the cap and the bottle, toothed belt 2 is laid in the ring recesses 4 and 5 with the toothed surface (Figs. 1-3).

The operation of the bottle "Impromptu" is illustrated in Fig. 4 and proceeds as follows: to prepare the solution, remove the toothed belt 2. The cap 3 is screwed fully against the thread. When screwing the inner plane of the bottom of the cover 3 moves along the axis O-O down. Sliding along the end of the movable tube 14, the inner surface of the bottom of the lid 3 exerts increasing pressure on the movable tube, forcing it to translate along the O-O axis. When moving the longitudinal holes 13 of the movable tube will partially come out of the tube coverage area with the inner surface of the neck - the volumes of the tube and vial will merge. The movement of the movable test tube will continue until the inner surface of the lid 3 adheres to the end surface of the neck of the vial. Further screwing of the cover will become impossible. The transferred tube is fixed by the locking ring 7 in the "dissolution" position. For the best mixing of the components, the vial is shaken.

The finished solution is isolated from the environment, sterility is maintained. To select the prepared solution, the cap is screwed up, the bottle is turned upside down and the tube plug is pierced with a syringe needle. The longitudinal openings of the tube, continuing into the neck, contribute to the complete draining of the solution from the vial into the tube. The transparency of the neck of the vial and tube allows you to control the position of the syringe needle inserted into the tube through an elastic tube, as well as selecting the prepared solution in the syringe.

The dimensions of the vial and test tube, and therefore their volumes, can be of any size and depend on the amount of solute and solvent required to obtain a certain amount of solution of a certain concentration.

Reliability and ease of operation of the “neck - test tube” system requires special preparation of the mating surfaces of the neck and test tube. Moving the tube in the neck should not require much effort, during storage, sufficient tightness should be maintained to isolate the internal volume of the tube both from the environment and from the internal volume of the vial, and after preparation of the solution, to isolate the total volume from the environment.

The bottle "Impromptu", keeping the drug and solvent isolated from each other and from the environment, allows you to quickly prepare a solution while fully maintaining sterility. It eliminates a number of manipulations with the ampoule in the case of using separately stored components - in the ampoule and in the bottle. The entrance to the tube from the side of the tube is larger than the opening of the opened ampoule, and it is easier to get into it with a needle. In this case, there is absolutely no contact of the soluble substance, solvent and the prepared solution with the environment, which cannot be avoided even when opening the ampoule, as well as when choosing a liquid in the syringe, when the released volume of the ampoule is filled with ambient air. According to the author, such qualities of the Impromptu vial can be very important in emergency situations: in conditions of smoke, dust, or increased infectious danger.

Claims (1)

A bottle for storing drugs and preparing sterile solutions, including a screw-threaded cap, characterized in that it contains a toothed tape and a tube with longitudinal holes mounted in an elongated neck of the bottle, equipped with a fixing ring mounted in the annular recess, while the tube has the possibility of axial movement between annular recesses on the outer surface of the tube and the exit of the holes from the scope of the tube with the inner surface of the neck, the toothed tape is removed It was prepared during the preparation of the solution and having the ability to hold the lid during storage, and annular recesses with a serrated surface were made on the bottle and lid for laying the toothed belt.

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