SU1386027A3 - Plastic container for medicinal and biological fluids and method of its production - Google Patents

Abstract

The invention relates to medical technology, in particular to containers for sterile liquids, such as blood plasma or pharmaceutical solutions. The purpose of the invention is to increase reliability by preventing damage to the walls of the container. On the container wall 1, there is a unit for injecting fluid into the container containing the cover 16, the elastic element 18 placed in the cavity between the cap and the wall of the container, and the tear-off means having a central part 20 attached to the part 21 of the cover to the gripping part 19. When removing the detachable means releases the sterile surface of the elastic element 18. 4 Cp f-ly, 9 ill. (O CO

Description

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The invention relates to medical technology5, in particular, to containers for sterile liquids, such as blood plasma or pharmaceutical solutions, having openings for adding medicaments to the contents of containers using a hypodermic needle without breaking the vessel or leaking its contents, ensuring that the contents are sterile.

The purpose of the invention is to increase reliability by preventing damage to the walls of the container. Making a film cap from a plastic material film, placing between the cap and the wall of the elastic element protected by the tear-off means allows the injection of liquid into the container without damaging its walls, maintaining the sterility of the contents of the container.

1 shows a plastic container, a general view; figure 2 - section aa in figure 1; on FIG. 3 - the same, with the tear-off means removed; 4 shows the sequence of manufacturing the cap; 5 shows a welding tool; 6 is a sequence of manufacturing a container; Fig.7 knot for injection, incision; in Fig. 8, the injection unit, general view; figure 9 - flange of the tank.

The plastic container for medicinal and biological fluids contains a node attached to wall i for injecting fluid into the container using a hollow needle. The container contains another wall 2 located opposite wall 1, inlet 3 and outlet 4 tubes, which are fixed to walls 1 and 2, welded to form flanges 5 and 6. Inlet tube 3 is necessary to fill the container with blood plasma or biological fluid. The outlet tube 4 has a diaphragm 7, which is subsequently rolled by a catheter or needle. Both the inlet and outlet tubes can be sealed by means of a removable section 8, opened along the disconnection line 9. The flange 6 has a hole 10 for the retaining hook 1 1. The outlet tube 4 may be connected to the drip chamber 12 for adjusting the flow of fluid through the tube 13, the needle 14 and the arm 15 of the patient. The injection unit contains a lid 16, sealed to

the wall 1 of the container and made of a film of plastic material. Kryshka-ka 16 has at its base a section 17, made in the shape of an annular skirt and attached to the wall 1 of the container. At the same time, the crinkle 16 with the wall I of the container forms a cavity for placing between them an elastic

element 18 for sealing the hole after inserting the needle into the container. The elastic element 18 is made of rubber or similar elastomer. Injection unit also contains removable

Tear-off means attached to the cap and made of a strip of a film of plastic material. Removable detachable means contains a gripping part 19 mounted above the top.

loosely, and the central part 20 attached to the lid portion 21 with the formation of the detachable tab 22 and the weakened section 23, whose wall thickness is less than

The walls of the lid 16 and the gripping part 19. The tear-off means has a round shape, and the central part is placed coaxially with the gripping part of the vessel wall, crush, tear-off

5-20 means, preferably 10 times thinner than the elastic element 18.

When separating the release agent, a sterile surface is opened.

the elastic element 18, the floor of the needle is inserted through it into the container for injection into the latter of the necessary fluid. When removing the needle, the elastic element, tightening, ensures tightness

capacity.

A method of manufacturing a plastic container is carried out as follows.

Make a knot for injection

fluid. To do this, a continuous strip 24 of a plastic material film is formed, forming a flap between the probe 25 and the dielectric welding plate plate 26 (not shown), heating the film of plastic material forming a tear-off means, formed in the form of a disk 27 with a strip of film 24, forming krshgku. The welded surface 28 corresponds to the central portion of the tear-off means 20. The free non-welded part 29 forms a gripping part. The contact surface 30 of the probe 25 has a curved concave surface (FIG. 5). After the disk 27 is welded to the strip

24 films, the probe is moved upwards, the skirts are attached to the vessel wall,

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so that the next stretch of strip can advance to the probe. Either before, either after or during the welding process, the strips are cut into pieces along line 31. The container is made of a continuous tubular film 32 of plastic material cut along line 3. The continuous tube 32 advances over the welding table 34, which separates the walls of the tube -15 bones. The elastic sterile element 35 is placed on a plastic material film 32, then heat-attaching is carried out using a probe 36 of a plastic material film 37 37 forming a core to the plastic material film 32 forming a container wall to form a cavity for the elastic element. After welding, probe 36 is moved upward, having a ring-shaped contact surface 38 and is made hollow to accommodate an elastic element. The probe may have an outer cutting edge 39 for cutting around the circumference of the film forming the cover to form an annular skirt around the elastic member. The container is then sealed to form flanges with inlet and outlet tubes (Fig. 9). The tubular film forming the walls of the container can be cut after n {) and the connections to it for injection (Fig. 8).

35

the cover with the container wall forming a cavity for accommodating the elastic element, the tear-off means is made of a strip of plastic material film and contains a gripping part mounted loosely above the collar, and a central part attached to the crack portion with the formation of a detachable eyelet and a section of the weakened section the wall thickness of which is less than the thickness of the walls of the latch and the gripping part.

2. Capacity pop. 1, differing in the position that the detachable means has a round shape, and the central part is placed coaxially with the gripping part.

3. A method for manufacturing a plastic container for medicinal and biological fluids, including the manufacture of a unit for injecting a liquid, manufacturing a container, connecting a unit for injecting a liquid with a container, characterized in that, in order to increase reliability of operation by preventing damage to the walls of the container, heat welding is performed films of plastic material forming tear-off means with welded central part

and a non-welded gripping part of the plastic film forming the lid, placing the elastic sterile element on the plastic material film forming the container wall, attaching the plastic material film forming the lid to the plastic material film forming the container wall to form a cavity for the elastic element.

Invention Formula

1. A plastic container for medicinal and biological fluids, containing a node for injecting fluid into the container with a cannula, attached to the wall of the container and containing a cap, sealed to the wall of the container, removable tear-off means attached to the cap, and an elastic element, sealing the hole after inserting the needle into the container, placed between the wall of the container and the lid, made of rubber or similar elastomer, characterized in that, in order to increase the reliability of operation by preventing damage to vessel walls, the cap is made of

films of plastic material and has at its base a portion made in the form of an annular

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the cover with the container wall forming a cavity for accommodating the elastic element, the tear-off means is made of a strip of plastic material film and contains a gripping part mounted loosely above the collar, and a central part attached to the crack portion with the formation of a detachable eyelet and a section of the weakened section the wall thickness of which is less than the thickness of the walls of the latch and the gripping part.

2. Capacity pop. 1, differing in the position that the detachable means has a round shape, and the central part is placed coaxially with the gripping part.

3. A method for manufacturing a plastic container for medicinal and biological fluids, including the manufacture of a unit for injecting a liquid, manufacturing a container, connecting a unit for injecting a liquid with a container, characterized in that, in order to increase reliability of operation by preventing damage to the walls of the container, heat welding is performed films of plastic material forming tear-off means with welded central part

and a non-welded gripping part of the plastic film forming the lid, placing the elastic sterile element on the plastic material film forming the container wall, attaching the plastic material film forming the lid to the plastic material film forming the container wall to form a cavity for the elastic element.

4. Method according to Clause 3, which is different from that with which a film of plastic material forming tear-off means is welded by heating with a continuous film of plastic material forming a crush, after which the latter is cut into strips.

5. Method according to paragraphs 3 and 4, which is due to the fact that the attachment of strips to a film of plastic material forming a container wall with the formation of a cavity for elastic

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Welding and cutting off areas around the elastic element.

around the elastic element.

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Claims (5)

Claim 1. A plastic container for medicinal and biological fluids, comprising a unit for injecting 45 fluids into the container using a hollow needle, attached to the wall of the container and comprising a lid hermetically attached to the wall of the container, a removable tear-off device attached to the lid, and an elastic element for sealing the hole after inserting the needle into the container, placed between the container wall and the lid, made of rubber or a similar elastomer, $$ characterized in that, in order to increase the reliability of work by preventing the walls of the container, the cover is made of a film of plastic material and has at its base a section made in the shape of an annular skirt attached to the wall of the container, while the cover with the wall of the container form a cavity for accommodating an elastic element, tear-off means is made of a strip of plastic material film and contains a gripping part mounted freely above the cover and a central part attached to the cover portion to form a tear-off ear and a section of weakened section, cat wall thickness cerned cover less than the thickness of the walls and the gripper portion. 2. The container according to claim 1, characterized in that the tear-off means has a circular shape, and the Central part is placed coaxially with the gripping part. 3. A method of manufacturing a plastic container for medicinal and biological fluids, including the manufacture of a node for injecting a liquid, manufacturing a container, connecting the node for injecting a liquid with a container, characterized in that, in order to increase the reliability by preventing damage to the walls of the container, welding is performed by heating the film a plastic material forming a tear-off means with a welded central part and a non-welded gripping part to a film of plastic material forming a lid, place sterile elastic element on the film of plastic material forming the wall of the container, the attachment is carried plastic film forming the cover film to the plastic material forming the wall of the container to form a cavity for the elastic element. 4. The method according to claim 3, wherein the welding is performed by heating by heating a film of plastic material forming tear-off means with a continuous film of plastic material forming a lid, after which the latter is cut into strips. 5. The method according to PP.3 and 4, characterized in that the fastening of the strips to the film of plastic material forming the wall of the tank with the formation of a cavity for elastic 1386027 6 elements, are made with the help of thermos to form an annular skirt for welding and cut sections around the elastic element. FIG. 1.-G Figure 5 ³⁰ (Figure 6 FIG. 7