DE19739139A1 - Small-volume glass container for medical treatments - Google Patents

Abstract

The small-volume container (2) is inserted bottom cone (3) downwards into the head part of a double shelled standing glass bottle type outside container (1) so both can be closed by a common closure head (4). The head has an outside thread (5) to take a standard screw cap (6). In a variant, the common head part (4) has a collar (5a) and is closed off by a collar-gripping cap (80 in conjunction with an elastomer stopper or disc (7). The total height amounts to 31-100 mm, outside diameter 14.75-47 mm, small-volume container (2) inserted 8-30 mm into outside container, giving an inside volume of 0.1-3 ml in the small container (2).

Description

The invention relates to a small volume container made of glass for medical Purposes that has a conical bottom part and that in an additional erectable body is embedded.

For certain medical applications, e.g. B. in the context of diagnostics, only very small volumes of medically active substance that are in on the order of 0.1 to 5 ml. The associated small-volume containers are so small that they are not sufficiently high Would have stability. However, stand-up containers are desirable because this simplifies handling and prevents the medically active substance in constant contact with the closure material says what could affect the substance. They also show Small volume container is conical due to optimal residual emptying Bottom part, which is the ability to set up the small volume container anyway would prevent.

It is known to use the aforementioned small volume containers as V-shaped glass inserts to train, which is inserted into the corresponding, adjustable plastic holder, pressed or glued.

The main disadvantage of this container is that additional assembly steps for the embedding of the small volume container in the erectable holder are necessary, different materials are used, the Plastic cannot be sterilized by dry heat (300 ° C).  

It is also known to have a body that can be set up on a glass base To produce presses and blow the inside of the body Form small volume containers with a conical bottom part. This However, the container has a large mass and poor transparency in the conical part of the small volume container.

The invention is based, based on the task designated small volume container made of glass for medical purposes, the has a conical bottom part and which can be set up in an additional one Body is embedded so that it can be easily and easily is producible, as well as a good visual inspection of the small volume container allowed.

This object is achieved according to the invention in that a double-shell tubular glass container is provided, with an outer, vial-like jacket container as an erectable body, inside it at the top of the small volume container at least with its conical bottom part protrudes, and with a common lockable headboard for both Container parts.

Compared to the known embodiment with the plastic holder, the Insert solution, the double-shell container according to the invention consists of one single material, namely glass, in the form of a tubular glass. It is with Advantage without additional assembly steps such as gluing, joining, screwing in or snap in, producible and at pharma-typical high temperatures (300 ° C) sterilizable.

Compared to the known embodiment with the solid glass body Metallic glass has the double-shell tubular glass container according to the invention with a high level of stability and low weight. Furthermore, with  The advantage of a good visual inspection of the contents of the small volume container possible.

Another advantage of the double-shell container according to the invention is in that the common head part can be closed with standard designs is.

For this purpose, according to a first development of the invention, the common cylindrically shaped head part formed on an external thread, which by a standard screw cap can be closed.

Depending on customer requirements or the typical use of the content of the According to a further embodiment, the small volume container has Invention the common head part on a neck part with an edge bead, which by an elastomer plug or an elastomer washer in Can be closed with a crimp cap encompassing the edge bead is.

Using two exemplary embodiments shown in the drawing the invention explained in more detail.

Show it:

Fig. 1 in a longitudinal sectional representation of an embodiment of the inventive clam shell container with a cylindrical head part with an outer thread for a screw cap,

Fig. 2 is a longitudinal sectional view of an embodiment of the double-shell container according to the invention with a neck part with a bead, which can be closed by a crimp cap.

Fig. 1 shows a double-shell container made of tubular glass, which initially has an outer, bottle-like jacket container 1 , which can be set up and has a high level of stability. A small volume container 2 with its conical base part 3 projects into the interior of this jacket container 1 on the head side. Both container parts 1 and 2 have a common head part 4 , which can be closed in the usual way. The embodiment according to FIG. 1 has a cylindrically shaped head part 4 with an external thread 5 formed thereon, so that the head part can be closed by a standard screw closure 6 .

In the embodiment according to FIG. 2, which otherwise corresponds to that of FIG. 1, which is why the same elements have the same reference numerals, the common head part has a neck part with an edge bead 5 a, which in the usual way by an elastomer plug or an elastomer disc 7 can be closed in connection with a crimp cap 8 encompassing the edge bead.

In a preferred embodiment of the invention, the double-shell tubular glass container according to FIGS. 1 and 2 has the following dimensions:

• - the total height is in the range of 31-100 mm,
• the diameter of the jacket container 1 is in the range 14.75-47 mm,
• the length with which the small volume container 2 projects into the jacket container 1 is in the range of approx. 8-30 mm,
• - The filling volume is in the range of 0.5-2 ml.

The double-shell container according to the invention is formed in one piece from tubular glass without any inserts or other assembly steps. For this purpose, a base part 1 a is formed on the tubular glass using known methods; the tube glass is then narrowed to the smaller diameter of the small volume container 2 in connection with the formation of a conical base part 3 , this narrowed tube section then being pressed into the jacket container 1 .

This makes the container according to the invention very easy to manufacture given.

The small volume container according to the invention for medical purposes advantageously has the following features:

• - Filling volume: 0.1 to 3 ml
• - conical bottom
• - consisting of a single material (tubular glass)
• - high stability, but low weight
• - sterilizable at T = 300 ° C (typical for pharma)
• - Without assembly steps, such as gluing, joining, screwing or Snap in, producible
• - lockable with standard lock.

Claims (3)

1. Small volume container made of glass for medical purposes, which has a conical bottom part and which is embedded in an additional erectable body, characterized in that a double-shell container made of tubular glass is provided, with an outer bottle-like jacket container ( 1 ) as an erectable body, in the The interior of the small volume container ( 2 ) protrudes from the inside at least with its conical base part ( 3 ) and with a common, closable head part ( 4 ) for both container parts ( 1 , 2 ). 2. Small volume container according to claim 1, characterized in that an external thread ( 5 ) is formed on the common cylindrical head part ( 4 ), and the head part can be closed by a standard screw closure ( 6 ). 3. Small volume container according to claim 1, characterized in that the common head part ( 4 ) has a neck part with an edge bead ( 5 a) and by an elastomer plug or an elastomer disc ( 7 ) in connection with a flanged cap ( 5 ) encompassing the edge bead ( 5 ). 8 ) can be closed.