JPH0634748U - Bucket structure for centrifuge - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a structure capable of sterilizing the inside of a bucket having an abnormality with a high-pressure steam sterilizer without removing the sealing cover. In a structure of a bucket 4 for a centrifuge, which is detachably attached to a rotating rotor 3 and stores a sample therein, a transparent or translucent closed cover 7 is provided at an opening of the bucket 4. , A hole 14 for communicating the inside and the outside of the bucket 4 is formed in the closed cover 7, and the hole 1
4 has a structure in which a metal or synthetic resin 15 that melts below the sterilization temperature of the high-pressure steam sterilizer 15 is packed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a bucket structure for a centrifuge, and more particularly, to a bucket structure for a centrifuge that can sterilize the inside of the bucket in an abnormal state while a cover for sealing the bucket is attached.

[0002]

[Prior art]

 Conventionally, in consideration of, for example, the case of centrifuging a biologically dangerous sample, there is a bucket in which a test tube containing the sample is provided with an airtight cover.

The bucket provided with such a hermetic cover is removed from the rotor after the sample stored therein is separated by centrifugation, and the hermetic cover is removed in the protective cover so as not to contaminate the surrounding environment. , A biologically dangerous sample stored in the bucket is measured and analyzed.

[0004]

[Problems to be solved by the device]

 However, here, in the bucket provided with the above-mentioned hermetically closed cover, when the sample stored is certainly abnormal, for example, when the stored sample spills due to the damage of the test tube or the imbalance of rotation, the spilled sample is Although it is possible to prevent scattering from the inside of the bucket to the outside, the inside of the bucket itself is still contaminated with a biologically dangerous sample, and in that state, remove the sealing cover and clean the inside of the bucket. Sterilization is not possible because it contaminates the worker and the surrounding environment.

Therefore, with the sealing cover still attached, the bucket is removed from the rotor, and the sealing cover is also removed in the protective cover so that the sterilization processing inside the bucket can be performed. After this, the bucket had to be discarded or reused, and the work was extremely complicated.

The present invention has been made in view of the problems of the above-described conventional technique, and an object thereof is to clean a bucket in which an abnormality has occurred by a high-pressure steam sterilizer without removing the sealing cover. It is to provide a bucket structure for a centrifuge that can be sterilized.

[0007]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention provides a bucket structure for a centrifuge which is detachably mounted on a rotating rotor and stores a sample therein, and the opening of the bucket is transparent or semi-transparent. A valve mechanism for providing a transparent airtight cover and communicating the inside and the outside of the bucket closed by the airtight cover when the temperature around the airtight cover becomes a predetermined temperature or a predetermined pressure or more. It has a structure with.

[0008]

[Action]

 According to the bucket structure for a centrifuge according to the present invention described above, since the transparent or semi-transparent sealing cover is provided at the opening of the bucket, it is possible to check whether or not there is any abnormality in the sample stored inside. It can be easily confirmed from the outside, and if an abnormality is found, if it is left in the bucket, for example, in a high-pressure steam sterilizer with the sealing cover still attached, the sealing cover will not have the specified size. When the temperature exceeds a predetermined temperature or a predetermined pressure, a valve mechanism that connects the inside of the bucket closed by the sealing cover and the outside is provided. The valve mechanism is opened, the inside is sterilized, and the subsequent handling is safe even with bare hands.

[0009]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Here, FIG. 1 is a perspective view of a centrifuge equipped with a bucket according to the present invention, and FIG. 2 is a vertical sectional view of the bucket according to the present invention. 3 and 4 are a conceptual diagram and a sectional view showing a sterilized state of the bucket according to the present invention, respectively. 5 and 6 are vertical sectional views showing another embodiment of the bucket according to the present invention.

In the figure, reference numeral 1 denotes an entire centrifuge, and the centrifuge 1 is attached to a body 2, a motor (not shown) installed in the body 2, and an output shaft of the motor. The rotor 3 is mainly composed of a rotor 3, a bucket 4 which is detachably attached to the rotor 3 and stores a sample therein, and a lid 5 which covers the upper surface of the body 2.

As shown in FIG. 2, the bucket 4 has a bucket body 6 and a sealing cover 7 that closes an upper surface opening of the bucket body 6, and a large number of holes 8 are provided inside the bucket body 6. A perforated tube rack 9 is mounted, and a glass tube 10 containing a sample is independently stored in each hole 8 of the tube rack 9.

The hermetic cover 7 that closes the upper opening of the bucket body 6 is made of a transparent or semi-transparent synthetic resin material, and an annular groove 11 is formed on the lower end surface that contacts the bucket body 6. A sealing O-ring 12 is attached to the annular groove 11, and the sealing cover 7 is fixed in a state of being pressed by the band 13 against the bucket body 6, whereby the inside of the bucket 4 is sealed.

Further, a hole 14 is provided on the upper surface of the hermetic cover 7 for communicating the inside and the outside of the bucket 4 which is hermetically sealed by the hermetic cover 7, and the hole 14 is For example, a metal or a synthetic resin 15 that melts at a sterilization temperature (about 120 ° C.) or less in the high-pressure steam sterilizer is filled, and the inside of the bucket 4 is kept sealed at a normal use temperature.

The bucket 4 according to the present invention configured as described above is used, for example, when centrifuging a biologically dangerous sample. The sample is put in the glass tube 10 and the bucket body 6 is inserted. It is housed in the hole of the tube rack 9 mounted inside, and the sealing cover 7 is fixed with the band 13 in a state of closing the upper surface opening of the bucket main body 6, and the sample is transported during transportation of the bucket 4 or during centrifugation. Then, the bucket 4 is attached to the rotor 3 of the centrifuge 1 to centrifuge the sample.

Whether or not the sample is normally centrifuged can be easily confirmed through the closed cover 7 formed of a transparent or translucent synthetic resin material, and if the centrifugation is normally performed. In the above, the bucket 4 containing the sample is removed from the rotor 3 of the centrifuge 1, put in a protective cover, the sealing cover 7 of the bucket 4 is removed in the protective cover, and the measurement / analysis of the sample stored inside is performed. Do.

On the other hand, in the case of an abnormality, it can be confirmed through the sealing cover 7 that the stored sample is spilled inside the bucket 4 due to, for example, damage to the test tube or unbalance of rotation. The sample is no longer valuable for measurement and analysis. With the closed cover 7 still attached, the bucket 4 is thrown into the autoclave 16 as shown in FIG. As shown in FIG. 4, the metal 4 or the synthetic resin 15 filled in the hole 14 of the airtight cover 7 is melted, and the inside of the bucket 4 in the airtight state is communicated with the outside to sterilize the inside of the bucket 4. Perform processing.

As described above, the bucket structure for a centrifuge according to the present invention can safely centrifuge, for example, a biologically dangerous sample without scattering, and if an abnormality should occur, the internal structure When sterilization is required, the most characteristic feature is that sterilization inside the bucket is possible without removing the cover that keeps the bucket in a sealed state.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and various changes and modifications can be made based on the technical idea of the present invention. is there.

For example, in the above-described embodiment, as a valve mechanism provided in the hermetic cover 7, a metal or synthetic resin 15 that melts at a sterilization temperature of the high-pressure steam sterilizer (about 120 ° C.) or lower is provided in the hermetic cover 7. Although the hole 14 is formed by filling the hole 14, the so-called bimetal 17 formed by bonding metals having different thermal expansion coefficients is formed in the closed cover 7 as shown in FIG. Alternatively, the bimetal 17 may be bent by the heat in the high-pressure steam sterilizer 16 so that the hole 14 is opened.

Further, as a valve mechanism provided in the hermetic cover 7, as shown in FIG. 6, an elastic body 18 such as rubber is packed in a hole 14 formed in the hermetic cover 7, and the elastic body 18 is steamed under high pressure. The hole 14 may be opened by releasing the air sterilizer 16 by the pressure in the air sterilizer 16.

Further, as a method of fixing the sealing cover 7 to the bucket body 6, not only the method of fixing with the band 13 shown in the above embodiment, but also the female screw 19 and the male screw 20 as shown in FIG. Alternatively, any method can be adopted as long as it can fix the both 6 and 7 in an airtight manner.

[0023]

[Effect of device]

 As described above, according to the bucket structure for a centrifuge according to the present invention, since the transparent or semi-transparent sealing cover is provided at the opening of the bucket, an abnormality occurs in the sample stored therein. It can be easily confirmed from the outside whether or not something abnormal is found, and if an abnormality is discovered, it can be sealed with the sealing cover still attached, for example, by throwing it into the bucket in a high-pressure steam sterilizer. When the cover reaches a predetermined temperature or a predetermined pressure or higher, a valve mechanism for communicating the inside of the bucket closed by the sealing cover with the outside is provided. The valve mechanism is opened by temperature or pressure, and sterilization inside the valve mechanism becomes possible.

[Brief description of drawings]

FIG. 1 is a perspective view of a centrifuge equipped with a bucket according to the present invention.

FIG. 2 is a vertical sectional view of a bucket according to the present invention.

FIG. 3 is a conceptual diagram showing a sterilization state of a bucket according to the present invention.

FIG. 4 is a vertical sectional view showing a sterilized state of the bucket according to the present invention.

FIG. 5 is a vertical cross-sectional view showing another embodiment of the bucket according to the present invention.

FIG. 6 is a vertical cross-sectional view showing another embodiment of the bucket according to the present invention.

[Explanation of symbols]

 1 Centrifuge 2 Body 3 Rotor 4 Bucket 5 Lid 6 Bucket Body 7 Sealing Cover 8 Tube Rack Hole 9 Tube Rack 10 Glass Tube 11 Annular Groove 12 Seal O-ring 13 Band 14 Sealing Cover Hole 15 Metal with Low Melting Point Or synthetic resin 16 High-pressure steam sterilizer 17 Bimetal 18 Elastic body such as rubber 19 Female screw 20 Male screw

Claims (1)

[Scope of utility model registration request] 1. A rotating rotor is detachably mounted,
In a bucket structure for a centrifuge that stores a sample therein, a transparent or translucent sealing cover is provided at the opening of the bucket, and the surrounding of the sealing cover has a predetermined temperature or a predetermined pressure or more. Then, the inside of the bucket in a state of being sealed by the sealing cover,
A bucket structure for a centrifuge, which is provided with a valve mechanism communicating with the outside.