EA025424B1 - Cap for closure of a medical container - Google Patents

Abstract

The invention - a cap for closure of a medical container - relates to design of caps providing hermetic access to the inner space of the container. The cap for closure of a medical container comprises a side wall (1) with a flange (2) in the lower part for securing the cap to the neck of a container, and a flat end wall (3). The end wall is provided with a tear-off part (4) for sealing the places of piercing. Pressed into the plane of the end wall is a sealing element (5) made of rubber or thermoplastic elastomer able to retain the preset shape and having rectangular shape with rounded ends on the outer side and a complex labyrinth of protrusion and recesses (6) on the inner side, which provide a reliable contact with the container neck and have stiffening ribs (7) and places for piercing with a needle element (8), the tear-off part being made in the form of a flat pad fixed by a thermal method over the periphery and in the middle of the end wall with a perforated preset destruction line and gripper parts on the edges (9), which provides the possibility of separating the tear-off part from the end wall to free the places of piercing, and the gripper parts being laid on the plane (10) of recesses in the cap side wall with fixing elements (11).

Description

The invention - a cap for capping a medical container - relates to the design of caps that provide tight access to the internal space of the container.

Known caps with a sampling point for extracting medical fluid and an injection site, each of which is closed by a breakable part [1]. The disadvantage of the above design of the cap is a complex design and, as a consequence, a complex production technology.

The closest in technical essence of the proposed cap for capping the medical container is a cap, the place of the fence and the injection site of which are closed, each, tear-off part, which are connected to the gripping parts. Gripping parts for tearing are located next to each other of the tearing parts and are made circular in shape [2].

The disadvantages of the above design of the cap are a complex structure and, as a result, a complex production technology, as well as insufficient ease of use when opening.

The objectives of the invention - a cap for capping a medical container - are sealing access points for containers filled with medical fluids, simplicity of design, manufacturability, sterility and tightness of puncture sites, ease of use when opening.

The tasks are solved as follows. The cap for sealing the medical container includes a side wall with a flange at the bottom of the cap for attaching the cap to the neck of the container, a flat end wall with a tear-off part for sealing puncture sites. According to the invention, a sealing element is pressed into the plane of the end wall. It is made of rubber or thermoplastic elastomer. The sealing element is made rectangular on the outside, with rounded corners, and on the inside has a complex labyrinth of protrusions and recesses, in which stiffeners and places for puncture with a needle element are located. The tear-off part is made in the form of a flat lining, thermally attached along the perimeter of the end wall and in the middle with a line of predetermined fracture in the form of perforation and gripping parts along the edges. The gripping parts provide the ability to separate the tear-off part to free puncture sites. The gripping parts are laid on the plane of the recesses in the side wall of the cap with fixing elements.

Significant differences of the invention from the prototype is the following.

Making a cap with a sealing element pressed into the plane of the end wall, made of rubber or a thermoplastic elastomer, having a rectangle shape on the outside, with rounded corners, and on the inside - a complex labyrinth of protrusions and recesses, in which stiffeners and puncture places are located needle element, helps to maintain a given shape, provides manufacturability in manufacturing, sterility and tightness of capping. The implementation of the sealing element by injection molding ensures the tightness of the connection, simplicity of design, its strength and adaptability.

The manufacture of the tear-off part in the form of a flat lining thermally attached along the perimeter of the end wall, and in the middle with a line of predetermined fracture in the form of perforation, provides reliable sealing of puncture sites, ease of manufacture and ease of operation.

The implementation of the tear-off part with the gripping parts at the edges provides the ability to separate the tear-off part to free the puncture sites, both alternately and all at the same time with a relatively small effort, also provides ease of use.

The placement of the gripping parts on the plane of the recesses in the side wall of the cap with locking elements contributes to ease of use when opening.

The invention is illustrated by drawings, in which: FIG. 1 is a front view in section; in FIG. 2 - top view; in FIG. 3 is a side view with a local section;

in FIG. 4 is a perspective view of the inventive cap.

The cap for sealing the medical container is made by injection molding, preferably made of polyolefins, in particular PP, PE. The cap for sealing the medical container contains a side wall 1 with a flange 2 in the lower part for attaching the cap to the neck of the container and a flat end wall 3. The end wall is equipped with a tear-off part 4 for sealing puncture sites. A sealing element 5 made of rubber or a thermoplastic elastomer is pressed into the plane of the end wall, capable of maintaining a shape having a rectangular shape with rounded corners on the outside, and a complex labyrinth of protrusions and recesses 6 providing reliable contact with the neck of the vessel, on the inside which are stiffening ribs 7 and places 8 for puncture with a needle element. The tear-off part is made in the form of a flat lining thermally attached along the perimeter of the end wall and in the middle with a line of predetermined fracture in the form of perforation and gripping parts along the edges 9, which make it possible to separate the tear-off part from the end wall to free puncture sites, and the gripping parts are laid on the plane 10 of the recesses in the side wall of the cap with locking elements 11.

- 1,025424

The present invention works as follows. To open the puncture sites, the gripping parts 9 are gripped with fingers and pulled upward, so that the tear-off parts 4 are torn off from the surface of the end wall 3. When using one gripping part 9, one puncture site is opened; when using two gripping parts 9, two puncture places are opened.

The use of the proposed invention in comparison with the prototype is simple in design, manufacturable, easy to use when opening, and also with a high degree of sterility and sealing of access points for containers filled with medical fluids.

Claims (1)

CLAIM A cap for sealing a medical container, comprising a side wall with a flange at the bottom for attaching the cap to the neck of the container and a flat end wall equipped with a tear-off part for sealing puncture sites, characterized in that a sealing element made of rubber or thermoplastic is pressed into the plane of the end wall an elastomer having a rectangular shape with rounded corners on the outside, and a complex labyrinth of protrusions and recesses in which stiffeners and one hundred for a puncture with a needle element, and the tear-off part is made in the form of a flat lining, thermally attached along the perimeter of the end wall and in the middle with a line of predetermined fracture in the form of perforations and gripping parts along the edges, allowing the tear-off part to be separated from the end wall to free puncture sites and laid on the plane of the recesses in the side wall of the cap with fixing elements.