JPS6227218Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is suitable for separating a predetermined amount of samples such as blood used in the field of clinical testing, or for use as a centrifuge tube, or for preparing trace serum samples. , relates to a sample container used for multiple purposes.

Conventionally, in order to collect a predetermined amount of a sample such as blood, a quantitative sampling tool such as a pipette has been used to collect a predetermined amount of sample. Furthermore, when measuring the hematocrit value of blood, the blood was transferred to a glass capillary hematocentrifuge tube. Furthermore, when performing biochemical measurements on trace amounts of serum, the serum was separated in advance using a centrifugal test tube, and the serum was transferred using a pipette or the like.

As mentioned above, since special tools and containers are used depending on each measurement item, there is a drawback that various containers must be prepared even if the same blood is to be centrifuged.

The present invention has been devised in view of the above-mentioned drawbacks, and it is an object of the present invention to provide a sample container that can be used for multiple purposes with a single container.

The present invention will be explained below based on the drawings.

FIG. 1 is an explanatory diagram showing a side sectional view of the container of the present invention, FIG. 2 is an explanatory diagram of the embodiment, and FIGS. 3 and 4 are explanatory diagrams of the embodiment of the AA' cross section of FIG. 1. FIG. 5 and FIG. 6 are explanatory diagrams of another embodiment.

As shown in FIG. 1, the sample container of the present invention is composed of three parts: a test tube part 1, a funnel part 2, and a capillary part 3. Circular protrusions 4 and 5 are formed approximately in the center of the capillary tube 2, and the capillary tube portion 3 is an integrally molded product made of transparent or translucent synthetic resin with an opening only at the tip thereof.

The inner diameter of the test tube portion 1 is approximately equal to the outer diameter of the funnel portion 2, while the inner wall of the protrusion 4 and the outer circumference of the protrusion 5 are approximately equal in shape and size.
If you cut just below the protrusion 4 in Fig. 1 using scissors or the like, the protrusions 4 and 5 and the funnel part 2 will appear as shown in Fig. 2.
The lower part of the test tube part 1 and the inner wall of the test tube part 1 are fitted and fixed. Therefore, as shown in FIG. 2, the capillary tube section 3 is fixed so as to hang down approximately at the center of the test tube section 1.

In addition, even if the cut is slightly bent when cutting with scissors or the like, the position is accurately fixed by the engagement of the protrusions 4 and 5, so the capillary portion 3 always hangs parallel to the inner wall. do.

The horizontal cross section of the test tube section 1 is generally a circumferential cylindrical cross section, but in cases where the purpose of use is special or depending on the resin material, in order to prevent deformation, the horizontal cross section shown in Fig. 1 may be ' Figures 3 and 4 are cross-sectional views.
It is also possible to mold the funnel part 2 to have a thick wall part 6 as shown in the figure, and in that case, the outer wall of the funnel part 2 or the protrusions 4 and 5 are also deformed accordingly to impair the fitting effect. It is necessary to make sure that this does not happen.

It is desirable that the outer walls of the test tube 1 and the funnel part 2 have a scale indicating the internal volume. This scale is arranged from the bottom to the top, such as 1CC, 2CC, etc., so that it can be judged from either the inverted state as shown in Figure 1 or the upright state. Attach an increasing number.

It is desirable that the capillary tube section 3 also have a scale for quantifying minute amounts, but since the tube diameter needs to be about the same as that of a normal hematocrit capillary tube, it is preferable to include a circumferential protrusion 7 as a mark, as shown in FIG. 8 on the outer wall of the capillary tube.

In this embodiment, the inner diameter of the capillary tube portion is 1 mm, and the internal volume between the protrusions 7 and 8 is 0.1 ml.

To explain the methods of using the above sample containers for various clinical tests and other uses, first,
When measuring the hematocrit value, test tube section 1
is lightly pressed with a finger to immerse the tip opening 9 of the capillary tube section 3 into the blood sample, and the blood is introduced into the capillary tube section 3.

Thereafter, the opening is sealed using putty 10 or the like, the upper part of the protrusion 7 is cut using scissors or the like, and only the capillary portion 3 is centrifuged using a capillary centrifuge to measure the hematocrit value.

When measuring hematocrit values with a general centrifuge without using a centrifuge dedicated to capillary tubes, or when collecting serum for trace chemical analysis, first introduce blood into the capillary section 3, and then open the opening 9. After sealing, cut with scissors just below the protrusion 4 shown in FIG. 1, and insert and fix the capillary tube section 3 into the test tube section 1 as shown in FIG. 2.

In this state, set it in a centrifuge and centrifuge it in the same way as you would use a general test tube.

For example, in order to separate only serum, a small amount of serum can be easily taken out by cutting the capillary section 3 using scissors or the like and blowing out the contents.

In addition, for another purpose, when measuring urinary sediment, which is a solid substance in urine, rather than collecting urine from the opening of the capillary tube section 3, the test tube section 1 is collected directly below the protrusion 4 shown in FIG. The funnel part 2 is cut, the tip of the capillary part 3 is sealed in advance with putty or heat fused, and then assembled as shown in FIG. 2, and urine is injected into the funnel part 2. If centrifugation is performed in this state, the sediment will be separated in the capillary tube section 3, so the capillary tube section 3 will be cut with scissors and the sediment will be blown out onto a glass slide.

In addition, the test tube part 1, like a general test tube,
It can be used for mixing samples, reactions, etc., and the entire sample container of the present invention can also be used in place of a general pipette.

As described above, since the sample container of the present invention includes the capillary tube section 3, it can not only be used for various purposes, but also can be used in combination with the test tube section 1,
Even if the sample to be handled is minute, it can be handled in the same way as a general test tube, and since it can be cut at any position with scissors, it is possible to cut the necessary sample according to the measurement item. It has many excellent features such as being able to be taken out at will.
Use in hospital examination rooms and the like is very effective in terms of work efficiency.

Furthermore, the sample container of the present invention is integrally molded from synthetic resin, and is characterized by being extremely simple and low cost to manufacture.

[Brief explanation of the drawing]

1 and 2 are explanatory diagrams of an embodiment of the present invention, and FIGS. 3 to 6 are explanatory diagrams of other embodiments. 1... Test tube part, 2... Funnel part, 3... Capillary tube part, 4, 5... Circular projection.

Claims (1)

[Scope of utility model registration request] It is composed of a test tube part 1, a funnel part 2, and a capillary part 3 with an internal volume of about 0.1 ml, and is a circular projection provided between the test tube part 1 and the funnel part 2 and approximately in the center of the funnel part 2. 4 and 5, the inner diameter of the test tube section 1 and the outer diameter of the funnel section 2 are equal, and the inner diameter of the circular projection 4 and the outer diameter of the circular projection 5 are equal. The capillary section 3 has an opening with an inner diameter of about 1 mm that can be sealed with putty only at the tip end thereof, and a transparent or semi-transparent opening that can be cut with scissors directly below the capillary section 3 and the circular protrusion 4. A sample container made of transparent synthetic resin.