JPH0515956Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" This invention relates to a centrifuge adapter that is used to attach a bucket to the rotor of a centrifuge and to hold test tubes by attaching it to the bucket.

``Conventional technology'' When putting a sample into a test tube and centrifuging the sample in a centrifuge, a bucket is attached to the rotor of the centrifuge, and an adapter is inserted into the bucket. A test tube is inserted into the hole of the adapter and held there. In this conventional adapter, each hole into which a test tube is inserted has the same depth. Each test tube has a large brim or a cap attached to the top end, and the holes in each hole should be adjusted so that when the test tube is inserted into the adapter and held, the brim or cap of adjacent test tubes will not interfere with each other. There were intervals. For this reason, the number of test tubes that can be held in the adapter is smaller than in the case where it is assumed that test tubes without brims or test tubes without caps are inserted and held. In order to use the centrifuge efficiently, it is desirable that the adapter can hold as many test tubes as possible.

``Means for Solving the Problems'' According to this invention, the depths of adjacent holes into which test tubes are inserted and held are different from each other. In other words, the difference in the depth of the holes is greater than the length of the collar or cap in the depth direction of the test tube.

Because of this structure, even if the holes are narrowed to the extent that the brim or cap and the test tube do not come into contact with each other, the difference in the depth of the holes will prevent the brim or cap of the test tube from coming into contact with each other. do not collide with each other. In other words, the adapter of this invention can hold more test tubes than the conventional adapter.

``Example'' Figures 1 to 3 show a case where a test tube is inserted and held in an example of this invention. This adapter 11 is made of a substantially rectangular parallelepiped synthetic resin material, and holes 13 into which test tubes 12 are inserted and held are arranged in rows and columns on its upper surface. In this example, the outer diameter R ₁ of the test tube 12 is 13 mm, and the inner diameter of the hole 13 is 14 mm. The test tube 12 is covered with a cap 14. Cap 14 has an outer diameter R ₂ of 22 mm.
The height (length in the depth direction of the test tube 12) _H1 is 10 mm,
The radial wall thickness _D1 of the cap 14 is 4 mm. Handles 15 and 16 are provided on both sides of the adapter 11 and protrude upward so that the adapter 11 can be easily taken in and out of a bucket (not shown).

In this design, the depths of the holes 13 are made to differ between adjacent ones. In other words, shallow holes 13a and deep holes 13b are arranged alternately, and the shallow holes 13a are shown with diagonal lines in FIG.
The difference _L1 in depth between the shallow hole 13a and the deep hole 13b is slightly larger than the height _H1 of the cap 14, and is 11 mm in this example. Also, the distance D ₂ between adjacent holes 13 is equal to the radial wall thickness D ₁ of the cap 14.
It is slightly larger, in this example 5 mm.

In this way, in this design, adjacent test tubes are not adjacent to cap 14, but to cap 1.
The holes 13 can be formed so close to each other that the test tube 4 and the main body of the test tube 12 do not come into contact with each other. In the case of the numerical example mentioned above, adapter 1 of the same size
1, conventionally it was possible to form only 10 holes 13, but with this adapter, 20 holes 13 could be formed.
Holes 13 can also be formed.

4 to 6 show that the outer diameter R ₁ of the test tube 12 is
30mm, outer diameter _R2 of cap 14 is 34mm, height _H1 is
An example of an adapter 11 to which this invention is applied is shown for a case of 10 mm. In this example, adapter 11
The distance D ₂ between the closest holes 13 is 3 mm.
The difference in depth between the shallow hole and deep hole _L1 is 18 mm.
Therefore, six holes 13 can be formed.
However, according to the conventional technique in which the depth of the holes is the same, the number of holes is five in total, one in the center and four around it.

``Effects of the invention'' As stated above, this invention allows more test tubes to be inserted and held than conventional ones.
The efficiency of using the centrifuge can be increased accordingly. Note that if the hole depths differ in this way, the radius of rotation during centrifugation will differ and the centrifugal force will also differ; however, in reality, the difference in centrifugal force due to the difference in hole depth does not have much of an effect, and it can be used satisfactorily. It was confirmed that it can withstand

In addition, in order to make the depths of the holes 13a and 13b different from each other, holes of the same depth may be formed in the adapter 11, and filling material such as so-called bottom rubber may be placed in the bottom of some of the holes. .

[Brief explanation of the drawing]

Figure 1 is a front view showing an embodiment of this invention, Figure 2 is a front view showing an embodiment of this invention.
The figures are a plan view of Fig. 1, Fig. 3 is a right side view of Fig. 1, Fig. 4 is a plan view showing another embodiment of the invention, Fig. 5 is a sectional view of Fig. 1, and Fig. 6 is a plan view of Fig. The figure is a right side view of the adapter portion in FIG. 4.

Claims (1)

[Scope of Claim for Utility Model Registration] A centrifuge adapter that is used for attaching a bucket to the rotor of a centrifuge and holding a test tube by being attached to the bucket, into which the test tube is inserted and held. A centrifuge adapter characterized in that a plurality of holes are formed, and adjacent holes have different depths.