JPS59174758A - Container - Google Patents

Abstract

PURPOSE:To reduce significantly contact area of dosed-supply member material, such as pipet, etc. with liquid, by forming 2 chambers with intervention of a partition provided with a communicating passage at the bottom, forming a pipet inserting hole on one of said 2 chambers and constructing the other chamber available for hermetical sealing. CONSTITUTION:After pouring a reagent S into a larger chamber 4 through a pouring orifice 6 of reagent container B, the whole set is hermetically sealed with a cover 7 attached to the orifice 6. The reagent S is introduced into the smaller chamber 3 through a communicating passage 5 located at the bottom of a partition 2. The smaller chamber 3 is open to atmosphere through an insertion hole 8 of pipet P, however, as the chamber 4 is sealed, a level of the reagent S admitted in the chamber 3 rises only to that lower than that of the larger chamber 4. By immersion of an end of pipet P in the reaqent S, the specified quantity of reagent can be absorbed assuredly and the contact area of the reagent S and the pipet P can be reduced to a minimum.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to containers, and particularly to improvements in containers suitable for reagent containers installed in automatic blood analyzers.

Conventionally, in this type of container, a reagent is stored in a container formed in the shape of a hollow box, and a pipette is inserted through an injection port provided at the top of the container to fully immerse the pipette in the reagent. After this, a predetermined amount of reagent is aspirated with a pipette and dispensed into the sample.

However, with the structure of such conventional containers,
Since it is configured to simply store reagents, the tip of the pipette must be lowered to near the inner bottom of the container in order to aspirate the reagent in the container without wasting it.
With the above container structure, the contact area between the pipette and the reagent becomes extremely large, making the pipette cleaning device complicated.
In addition, there was a problem in that it became a factor in increasing the size.

The present invention was devised in view of the current situation, and its purpose is to extremely reduce the contact area between a partial pressure sample such as a pipette and a liquid, and to ensure that reagents are used without wasting them. The present invention aims to provide a container with a simple structure that can automatically supply a liquid such as a reagent so that it can be aspirated into the container.

In order to achieve such an object, in the present invention, a partition wall is interposed within the container body to completely form two -C groups, and a flow path is formed at the lower end of the partition wall to communicate the two groups. A pipette insertion hole is formed in one of the two chambers, and the other chamber is configured as a sealable container.

Hereinafter, the present invention will be described in detail based on an embodiment shown in the accompanying drawings.

This embodiment shows a case where the present invention is applied to a reagent container B in an automatic analyzer, and this reagent container B is made of chemically resistant material and is formed into a hollow box shape.

A partition wall 2 integrally formed with the container body 1 is interposed on one side of the hollow interior of the reagent container B, and the partition wall 2 is connected to the inside of the container body 1, the small chamber 3, and the large chamber. A section 4 is formed.

The small chamber 3 and the large chamber 4 are formed to communicate with each other through a flow channel 5 formed in a notch shape at the lower end of the partition wall 2, and the small chamber 3 and the large It is formed smaller than the bottom area of the chamber part 4.

Part 1 ~ Ceiling part of the small room 3: 1 for 3 a VC,
Piben for reagent dispensing) For insertion of the pipe -/'
L8 has been opened. In addition, the ceiling portion 4a of the large room portion 4
K has an injection port 6 for the reagent S, and this injection port 6. A lid 7 is removably attached to the large chamber 4 so that the large chamber 4 can be hermetically sealed.

The reagent S is injected from the inlet 6 of the reagent 6 vessel B configured in this manner.
Inject a predetermined amount into the large chamber 4, and then insert the lid 7 into the injection port 6.
Cover and seal. Then, the reagents S8-, J stored in the large chamber 4 are transferred from the flow path 5 at the lower end of the partition wall 3 to the small chamber 3.
flows to. In this case, the inside and outside of the small chamber 3 communicate with the atmosphere through the insertion hole 8 as described above, but the large chamber 4 is in a state where the inside and outside are not connected, that is, in a sealed state. Therefore, the water level of the reagent S flowing into the small chamber 3 rises only when the water level is lower than the water level in the eight-person chamber 4. That is, in this state, the pressure within the small chamber 3 and the pressure within the large chamber 4 are maintained in equilibrium.

Now, from the state where the pressure balance in this chamber part 3.4 is maintained, when pipeno) P and small chamber part 3 (/C are inserted and a predetermined amount of reagent S in small chamber part 3 is withdrawn, As the water level of the reagent S in the small chamber 3 falls, the pressure in the small chamber 3 decreases, and as a result, the pressure in the large chamber 4 exceeds the pressure in the small chamber 3. The reagent S in the chamber 4 flows into the small chamber 3 through the flow path 5, and the water level of the reagent 8 in the small chamber 3 rises to the above-mentioned initial water level and stops. The ice level of S is always kept almost constant.

Therefore, in the reagent container Bt/rC according to this embodiment, the water level of the reagent S in the small chamber 3 is kept constant at a level lower than the water level of the reagent S in the large chamber 4. When the pipette ■) is inserted into the small chamber part 3, the tip of the pipette (L-1) can be easily immersed in the reagent S. In addition to being able to reliably aspirate the reagent into the dog, the connection between reagent S and pipeno) P is also possible! l! Since the area can be significantly reduced, the bipeno) can be easily cleaned, and the apparatus can be simplified and miniaturized.

In addition, since the reagent container BV according to this embodiment can reduce the contact surface between the reagent S and the atmosphere in the small chamber 3, evaporation and deterioration of the reagent S can be significantly suppressed.

In addition, in the above-mentioned embodiment C, the height of the outer wall 3b of the small chamber 3 is set to be flush with the ceiling 4a of the large chamber 4, so that the reagent Sf: dog chamber When the sealed state of the large chamber section 4 is released, such as when adding to section 4,
It is possible to effectively prevent the water level of the reagent S in the small chamber 3 from rising and overflowing to the outside of the container.

Since this invention has the above-mentioned configuration, the total volume of contact between a partial pressure member such as a pipette and the liquid in a container can be significantly reduced, and as a result, deterioration of the liquid can be effectively prevented, and dispensing In addition to making it easier to wash the parts, it can be automatically supplied at 7f (liquid partial pressure r)'1ift, and the structure is simple, so it can be provided to the female side.

4 Drawing (j) fi'i 'l'l-ft Description FIG. 1 is a sectional view of a reagent container according to an embodiment of the present invention.

B: Reagent container P: Pipette container body
2. Partition wall 3... Small chamber part 4... Dog chamber part 5... Distribution path 8... Pipette insertion hole Patent applicant Nihon Tektron Co., Ltd. Figure 1

Claims (1)

[Claims] A partition is interposed in the container body to form two units, a flow path is formed at the lower end of the partition to communicate the two units, a pipette insertion hole is formed in one of the two units, and A container characterized in that the other chambers are configured to be airtight.