JPH07100484B2 - Liquid vacuum filling device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Use) The present invention, when a viscous liquid such as a serum separating agent is injected into a tubular container such as a blood collection container, the tubular container is sucked and evacuated to a certain vacuum state. The present invention relates to a device for filling a liquid.

(Prior Art) Generally, it is difficult for a tubular container such as a blood collection container to stand upright by itself. Therefore, these tubular containers are usually used as a dedicated transport container called a through container. It is fitted in the fitting insertion hole formed in the upright state in an upright state, and is transported through the transport container. On the other hand, when injecting the serum separating agent into a tubular container such as a blood collecting container, the inside thereof is kept under a constant vacuum state in order to prevent air from being mixed.

From these facts, in order to inject a serum separating agent or the like into the tubular container fitted in the fitting hole of the through container, conventionally, an attachment for blocking the outside air from the opening of the tubular container is closely attached,
A method of injecting after suctioning and exhausting to a certain vacuum state has been adopted. That is, as shown in FIG.
A large number of fitting insertion holes v ₀ are formed in V ₀ , and tubular containers S are fitted into the fitting insertion holes v ₀ ... in an upright state. On the other hand, a valve 02 having a large number of injection nozzles 01 ... Standing above the returnable container V ₀ that has been carried into a predetermined position, and an attachment 03. Is fixed. This attachment 03 is provided with a packing 04 on its lower surface, which is in close contact with the upper end opening of the tubular container S and shields it from the outside air, and also has an air supply / exhaust port 05 penetrating between the upper and lower surfaces thereof. .

Therefore, when the tubular containers S ... are fitted into the fitting insertion holes v ₀ of the commuting container V _{0 in} an upright state, the commuting container V ₀ is carried directly under the valve 02, and then the commuting container V ₀ is raised, Tubular container S ...
The corresponding injection nozzles 01 ... Are inserted inside. Then, the packing 04 of the attachment 03 fixed to each injection nozzle 01 is brought into contact with the upper end opening of the tubular container S, and they are brought into close contact with each other so as to block the outside air. In this state, a vacuum pump (not shown) is operated to supply and exhaust air inside the tubular container S.
It is configured to suck and evacuate from 05 and to inject a fixed amount of the serum separating agent from the injection nozzle 01 when the inside of the tubular container S reaches a constant vacuum state.

(Problems to be Solved by the Invention) However, in such a conventional technique, since the amount of air to be sucked is only the volume of the tubular container S, the time required for sucking is small, and a vacuum pump having a small capacity can be used. Although there are advantages that can be obtained, the shape and strength of the opening of the tubular container S,
Furthermore, depending on the precision, it is difficult to maintain airtightness, and since the attachments 03 are required by the number of the injection nozzles 01, there is a problem that the device becomes large as a whole.

It is also conceivable to cover the entire commuting container V ₀ with a vacuum box or the like so as to block it from the outside air and suck and exhaust the air in the occluded space. There is a drawback that a large vacuum source and a lot of suction time are required because the whole large-volume space including the container V ₀ has to be sucked and evacuated to a certain vacuum state.

The present invention has been made in view of the above-described problems of the prior art, and obtains a constant vacuum state by suctioning and exhausting a tubular container that is transported using a through container and a relatively small space. (EN) A vacuum suction device for a tubular container that can be used.

(Means for Solving the Problems) The present invention is provided with a solid container having a plurality of fitting holes into which a tubular container can be fitted, a plurality of injection nozzles, and a vacuum source. The nozzle case is provided with an air supply / exhaust port, and a sealing member is provided on the entire circumference of the bottom surface of the peripheral portion of the nozzle case, and the tubular container into which the through container is inserted is carried into a predetermined position. At least one of which is moved up and down to bring the through container and the nozzle case into close contact with each other, the internal space defined by the through container and the nozzle case is sucked and exhausted, and the liquid can be injected from the injection nozzle into the corresponding tubular container. It is characterized by having done.

(Operation) When the tubular container is fitted into each of the plurality of fitting holes provided in the through container in an upright state, and the through container is carried into a predetermined position in that state, a nozzle case waiting above the tubular case, Or move the container up and down to bring the container and nozzle case into close contact. As a result, the injection nozzle vertically provided in the nozzle case is inserted into the corresponding tubular container, and the internal space defined by the through container and the nozzle case is blocked from the outside air by the seal member. On the other hand, since the through-container has a solid structure except that a large number of fitting holes into which tubular containers are inserted are formed, when the vacuum source connected to the nozzle case is actuated, the through-container is fitted. Air is suctioned and exhausted from the space formed by the inner surface of the through-container and the nozzle case, including the tubular container fitted in the dowel in an upright state. When the internal space reaches a certain vacuum state, the serum separating agent or the like is injected into the tubular container from the injection nozzle.

(Example) Hereinafter, the Example of this invention is described with reference to drawings.

Reference numeral 1 denotes a lift table that can be raised and lowered by an air cylinder or the like (not shown). On the lift table 1, pedestals 2 and 2 for buffering and supporting the passing container V are fixed. On the other hand, above the lift table 1, a nozzle case 4 in which the valve 3 is integrally fixed is arranged. The nozzle case 4 has a peripheral wall portion 4a that substantially matches the contour of a returnable container V described later, and a ceiling portion 4b that integrally connects the peripheral wall portion 4a, and is formed in an inverted concave cross section as a whole. When the nozzle case 4 comes into contact with the through container V, the inner space formed by the through container V and the nozzle case 4 can be shielded from the outside air, so that the entire circumference of the lower surface of the peripheral wall portion 4a of the nozzle case 4 is O. A seal member such as the ring 5 is provided.

Further, a plurality of injection nozzles 6 communicating with the valve 3 are vertically provided on a ceiling portion 4b of the nozzle case 4, and a supply / exhaust port 7 is formed on the peripheral wall portion 4a for communicating the inside and the outside thereof. ing. A vacuum source such as a vacuum pump (not shown) is connected to the air supply / exhaust port 7.

On the other hand, as is clear from the drawings, the through-container V has a plurality of fitting holes v into which the tubular container S is fitted in a solid-structured box.
It is preferable that the peripheral portion of the upper surface thereof is formed into a smooth surface so that the above-mentioned O-ring 5 can be in close contact therewith.

With this configuration, when the tubular container S is inserted into the fitting hole v and the container V is loaded onto the pedestal 2 of the lift table 1, the lift table 1 is raised. When the lift table 1 rises, the injection nozzles 6 suspended from the nozzle case 4 are inserted into the tubular containers S, and at the same time, the upper surface of the passage container V is provided with the peripheral wall 4a of the nozzle case 4. The arranged O-ring 5 contacts.

As a result, the internal space formed by the communicating container V and the inner surface of the nozzle case 4 is shielded from the outside air. Then, when a vacuum pump (not shown) is operated, the air in the internal space is sucked and exhausted through the air supply / exhaust port 7. Then, when a certain vacuum state is reached, by switching the valve 3,
The serum separating agent is injected into the tubular container S from the injection nozzle 6.
When the injection is completed, suction by the vacuum pump is stopped, the air supply / exhaust port 7 is communicated with the atmosphere, and the lift table 1 is lowered. After this, the through container V into which the tubular container S in which the serum separating agent has been injected is inserted is carried out to the next step.

In the present embodiment, the movable container V is configured to be lifted and lowered by the lift table 1, but the nozzle case 4 can also be lifted and lowered.

Further, it can be widely applied in addition to injection of serum separating agent.

(Effects of the Invention) As described above, according to the present invention, the communicating container is formed into a solid structure having only the fitting hole of the tubular container, and the nozzle case is brought into contact with the upper surface of the container to open the outside air. The suction space can be made as small as possible, and at the same time, the effect of blocking the outside air can be achieved by constructing the suction space so that only the internal space defined by these communicating containers and the nozzle case is sucked and exhausted. It is possible to reach a constant vacuum state in a short time without using a large and large vacuum pump. Further, since it does not come into direct contact with the tubular container, the suction work can be performed without being affected by the end strength and accuracy of the tubular container, and the viscous liquid can be filled without bubbles in a compact device as a whole.

[Brief description of drawings]

The drawings illustrate the liquid vacuum filling apparatus of the present invention.
FIG. 1 is a partially cutaway front view showing a state before vacuum suction work, and FIG. 2 is a partially cutaway front view showing a vacuum suction state,
FIG. 3 is a partially cutaway front view showing a state of vacuum suction according to the prior art. S: tubular container, V: permeable container 1 ... table, 4 ... nozzle case 5 ... O-ring, 6 ... injection nozzle 7 ... supply / exhaust port

Claims (1)

[Claims] 1. A solid structure permeable container having a plurality of fitting holes into which a tubular container can be fitted, a plurality of injection nozzles, and an air supply / exhaust port connected to a vacuum source. It is composed of a nozzle case in which a sealing member is arranged all around the bottom surface of its peripheral portion, and a through container into which a tubular container is fitted is carried into a predetermined position, and at least one of the through container and the nozzle case is moved up and down. The container and the nozzle case are brought into close contact with each other, the internal space defined by the through container and the nozzle case is sucked and exhausted, and the liquid can be injected from the injection nozzle into the corresponding tubular container. Vacuum filling device.