JP3107824U - Sample detection extraction container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an extraction container for specimen detection with reduced risk of contamination.
SOLUTION: A liquid reservoir 20a for storing an extraction reagent therein and a nozzle 20e for dropping the extraction reagent are integrally formed to form a container body 20. The liquid reservoir has flexibility and is locally provided. It is formed so that the contacted cotton ball 2 can be inserted, the nozzle part is formed to have a smaller diameter than the liquid reservoir part, a filter seat 20c is formed between the liquid reservoir part and the nozzle part, and an extraction reagent is formed in the filter seat. A filter 24 for filtering is attached, and the periphery of the nozzle portion is sealed with a nozzle sealing cap 26 so as to be opened and closed.
[Selection] Figure 1

Description

  The present invention relates to an extraction container for specimen detection with reduced risk of contamination.

  Conventionally, in order to detect whether a patient has an infectious disease, a combination of an extraction container for sample detection containing an extraction reagent and an assay strip has been used.

  With reference to FIG. 4, the contents of this type of sample detection extraction container and the method of use thereof will be described.

  First, as shown in FIG. 4 (a), an examiner (for example, a nurse or a technician) places a cotton ball 2 of a cotton swab 1 (in a sterilized state before use) on a patient's local 3 ( For example, the nasal cavity or the pharynx is contacted, and the local area 3 is wiped. Thereby, the wiping liquid adheres to the cotton ball 2.

  Next, as shown in FIG. 4B, the examiner puts the cotton swab 1 in the container body 4 in which the extraction reagent 7 is stored, and immerses the cotton ball 2 of the cotton swab 1 in the extraction reagent 7. A flange 5 having a diameter larger than that of the container body 4 is formed at the upper part of the container body 4, and the upper part of the flange 5 is a screw part 6.

  Then, as shown in FIG. 4C, the inspector pinches the cotton ball 2 from the outside of the container main body 4 with a finger and squeezes out the wiping liquid adsorbed by the cotton ball 2 well. Thereby, the wiping liquid is mixed with the extraction reagent 7.

  Next, as shown in FIG. 4 (d), the inspector screws the screw portion 6 into the screw portion provided inside the cap 8 with the filter, and moves the cap 8 with the filter to the upper portion of the container body 4. Mounting.

  Further, as shown in FIG. 4 (e), the inspector turns the container body 4 upside down, and the wiping solution is applied to the sample addition section 11 of the assay strip 10 from the nozzle 9 formed at the tip of the cap 8 with the filter. The mixed extraction reagent 7 is dropped. Thereafter, the specimen is detected using the assay strip 10, and positive / negative is determined.

  However, in the state of FIG. 4 (d), the cap with filter 8 is gripped by the inspector and attached to the screw portion 6. At this time, the inspector may stop and attach a specimen to the nozzle 9 (contamination). At this time, even if the test subject is not infected (eg, it is negative in nature), such as when the tester has an infection, or after the tester handles multiple test subjects, If it should, the test result will be positive.

  This problem is particularly noticeable when the specimen is a virus that infects air (for example, influenza virus, adenovirus, RS virus, etc.).

As described above, the conventional extraction container for sample detection has a problem that there is a risk of contamination.
JP 2000-346838 A

  Accordingly, an object of the present invention is to provide an extraction container for specimen detection with reduced risk of contamination.

  The extraction container for specimen detection of the present invention is formed integrally with a liquid reservoir part for storing an extraction reagent and a nozzle part for dropping the extraction reagent, and the liquid reservoir part is flexible. The nozzle part is formed to be smaller in diameter than the liquid reservoir part, and a filter seat is formed between the liquid reservoir part and the nozzle part and extracted to the filter seat. A filter for filtering the reagent is attached, and the periphery of the nozzle portion is sealed with a nozzle sealing cap so as to be opened and closed.

  With this configuration, the inspector can insert the swab and squeeze out the wiping liquid adhering to the cotton ball in a state where the nozzle portion is sealed with the nozzle sealing cap. Therefore, the examiner does not accidentally attach the specimen to the nozzle part, and the reliability of the detection result can be kept high.

  Further, when the extraction reagent mixed with the wiping liquid is dropped, the inspector only needs to remove the nozzle sealing cap, and the inspector does not directly touch the nozzle portion, so there is no risk of contamination.

  Since the present invention is configured as described above, the risk of contamination can be reduced, and the reliability of detection results can be improved.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1A is a longitudinal sectional view of an extraction container for specimen detection according to an embodiment of the present invention, and FIG. 1B is a perspective sectional view of an extraction container for specimen detection according to an embodiment of the present invention. FIG. 2 is a longitudinal sectional view of a container body according to an embodiment of the present invention. In the following description, the same components as those in FIG. 4 showing the prior art are denoted by the same reference numerals, and detailed description thereof is omitted.

  The container body 20 is made of a flexible material (for example, a transparent thin resin). The inside of the container body 20 has an inner diameter that decreases from the top to the bottom.

  The large-diameter portion 20b located at the top corresponds to the insertion opening of the cotton ball 2 and is formed to have the largest diameter. A screw portion 22 is formed on the outer periphery of the large diameter portion 20b, and an upper cap 23 is screwed to the screw portion 22. The lower end portion of the screw portion 22 is enlarged in diameter to become the flange 21, and the flange 21 faces the lower end surface of the upper cap 23.

  The lower part of the flange 21 is a vertically long liquid reservoir 20a smaller than the large diameter part 20b, and the extraction reagent extraction reagent 7 is stored inside the liquid reservoir 20a. The diameter of the liquid reservoir 20a is formed slightly larger than the diameter of the cotton ball 2, and the cotton ball 2 brought into contact with the local region 3 can be inserted into the liquid reservoir 20a.

  A small-diameter portion 20d having a smaller diameter than the liquid reservoir portion 20a is connected to the lower portion of the liquid reservoir portion 20a, and the lowermost end portion of the small-diameter portion 20d is a nozzle portion 20e for dropping the extraction reagent 7. That is, the container body 20 is configured by integrally providing the liquid reservoir 20a and the nozzle 20e.

  A filter seat 20c is formed between the liquid reservoir 20a and the small diameter portion 20d, and a filter 24 for filtering the extraction reagent 7 is attached to the filter seat 20c. A knob protrusion 24 a that protrudes upward is formed at the center of the upper surface of the filter 24. Since the knob protrusion 24a is provided, a predetermined jig (not shown) can chuck the knob protrusion 24a when the filter 24 is attached to the filter seat 20c via the large diameter portion 20b and the liquid reservoir 20a. Easy to adapt to mass production.

  A screw portion 25 is formed on the outer peripheral surface of the small diameter portion 20d, and a screw portion formed on the inner surface of the nozzle sealing cap 26 is screwed to the screw portion 25. Further, a protruding portion 26b that protrudes upward is formed at the center of the bottom surface of the nozzle sealing cap 26. When the nozzle sealing cap 26 is screwed into the screw portion 25, the protruding portion 26b is fitted into the nozzle portion 20e. The nozzle part 20e is sealed. As will be described later, the nozzle sealing cap 26 is always screwed into the screw portion 25 except when the extraction reagent 7 mixed with the wiping liquid is dropped, and the periphery of the nozzle portion 20e is normally sealed with a nozzle. Sealed with a cap 26. Of course, the inspector can remove the nozzle sealing cap 26 from the nozzle part 20e and expose the nozzle part 20e to the outside by rotating the nozzle sealing cap 26. Also at this time, since the inspector only touches the nozzle sealing cap 26 and does not directly touch the nozzle portion 20e, there is no risk of contamination.

  Next, with reference to FIG. 3, a method for using the specimen detection extraction container of the present embodiment will be described.

  First, as in the prior art, the examiner brings the cotton ball 2 of the swab 1 into contact with the local area 3 of the patient and wipes the local area 3. Thereby, the wiping liquid adheres to the cotton ball 2 (see FIG. 4A).

  Next, as shown in FIG. 3A, the examiner puts the cotton swab 1 in the container body 20 in which the extraction reagent 7 is stored, and immerses the cotton ball 2 of the cotton swab 1 in the extraction reagent 7.

  Then, as shown in FIG. 3B, the inspector pinches the cotton ball 2 from the outside of the container main body 20 with a finger and squeezes out the wiping liquid adsorbed by the cotton ball 2 well. Thereby, the wiping liquid is mixed with the extraction reagent 7.

  Next, as shown in FIG. 3C, the inspector screwes the screw portion provided inside the upper cap 23 into the screw portion 22, and attaches the upper cap 23 to the upper portion of the container body 20.

  Further, as shown in FIG. 3D, the inspector rotates the nozzle sealing cap 26 and removes the nozzle sealing cap 26. Thereby, the nozzle part 20e sealed with the nozzle sealing cap 26 is exposed outside.

  Then, the examiner drops the extraction reagent 7 mixed with the wiping liquid from the nozzle portion 20e to the sample addition portion 11 of the assay strip 10. Thereafter, the specimen is detected using the assay strip 10, and positive / negative is determined.

  Here, as apparent from a comparison between FIG. 4D and FIG. 3C, the inspector only touches the nozzle sealing cap 26, and does not directly touch the nozzle portion 20e, the filter 24, or the like. Because there is no risk of contamination.

  Therefore, when the test result should be negative, the test result is less likely to be positive, and the reliability of the test result is improved.

(A) Longitudinal sectional view of an extraction container for sample detection according to an embodiment of the present invention (b) Perspective sectional view of an extraction container for sample detection according to an embodiment of the present invention The longitudinal cross-sectional view of the container main body in one embodiment of this invention (A) Operation explanatory diagram of sample detection extraction container in one embodiment of the present invention (b) Operation explanatory diagram of sample detection extraction container in one embodiment of the present invention (c) One embodiment of the present invention (D) Operation explanatory diagram of the sample detection extraction container in one embodiment of the present invention (A) Operational explanatory diagram of a conventional sample detection extraction container (b) Operational explanatory diagram of a conventional sample detection extraction container (c) Operational explanatory diagram of a conventional sample detection extraction container (d) Conventional sample detection Operation explanatory diagram of extraction container (e) Operation explanatory diagram of conventional specimen detection extraction container

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cotton swab 2 Cotton ball 3 Local 4 Container body 5 Flange 6, 22, 25 Thread part 7 Extraction reagent 8 Cap with filter 9 Nozzle 10 Assay strip 11 Sample addition part 20 Container main body 20a Liquid reservoir part 20b Large diameter part 20c Filter seat 20d Small diameter portion 20e Nozzle portion 21 Flange 23 Upper cap 24 Filter 24a Knob protrusion 26 Nozzle sealing cap 26a Side portion 26b Projection

Claims (2)

A liquid reservoir for storing the extraction reagent inside and a nozzle part for dropping the extraction reagent are integrally formed as a container body,
The liquid reservoir is formed so that a cotton ball having flexibility and locally contacted can be inserted,
The nozzle part is formed with a smaller diameter than the liquid reservoir part,
A filter seat is formed between the liquid reservoir portion and the nozzle portion, a filter for filtering the extraction reagent is attached to the filter seat, and the periphery of the nozzle portion is sealed with a nozzle sealing cap so as to be opened and closed. An extraction container for specimen detection characterized by the above. The extraction container for sample detection according to claim 1, wherein a knob projecting piece projecting upward is formed at the center of the upper surface of the filter.

Images